• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    CONNECTION SET A coupling for connecting ground-penetrating tools to a lip of a bulldozer bucket or similar is exposed. The coupling uses an eccentric rotary lock, so the rotation of the lock changes the distance between support surfaces and thus allows the lock to be tightened.
    公开号:BR112013013263B1
    申请号:R112013013263-9
    申请日:2011-12-07
    公开日:2020-11-17
    发明作者:Benjamin Hughes
    申请人:Talon Engineering Sdn Bhd；
    IPC主号:
    专利说明:

    Field of the Invention
    [0001] The present invention relates to the connection of wear elements to machinery. It is particularly aimed at connecting soil-penetrating tools, such as teeth, to excavator buckets, but it can have a wider application. Background to the Invention
    [0002] Digging equipment buckets are subject to significant abrasive wear during use. For this reason, replaceable ground-penetrating tools (GET) are positioned around the buckets in the areas most susceptible to wear. A number of different GET are used, including heel bulkheads, lip bulkheads, adapters, wear plates and, importantly, teeth.
    [0003] Connecting teeth to adapters has presented a consistent challenge, and there are many different systems currently available that seek to accomplish this task in an efficient manner. Many systems use a locking pin, which passes through a hole in the adapter. Such an arrangement has an inherent problem, in that the provision of a hole weakens the adapter, as well as encourages stress concentrations within the adapter. In addition, locking pins tend to bend in use, and removing a curved locking pin can be difficult.
    [0004] Other systems use a locking system. These are problematic in that there is usually no ability to adjust or tighten the connection, consequently the teeth are capable of loosening.
    [0005] A system using such a locking system is disclosed in WO 2008/021376. This system uses a C-shaped locking element with a tooth, arranged to rotate on a tapered pin inside an adapter to move between a locked and an unlocked configuration.
    [0006] Wear members are fixed to the base of the devices in other systems, such as when connecting drills to milling machines. An example of such an assembly can be seen in WO 2010/118249.
    [0007] The present invention seeks to provide an arrangement for connecting wear elements, particularly teeth, which addresses some of these problems. Summary of the Invention
    [0008] According to an aspect of the present invention, a coupling is provided to connect a wear element to a base, the base including a first support surface, the wear element including a second support surface; the coupling including a rotary lock having a first face arranged to support against the first support surface and a second face arranged to support against the second support surface, the relative positions of the first and second faces varying about a central axis of the lock, so that, in use, the rotation of the lock changes the distance between the first and second supporting surfaces.
    [0009] It is preferred that the first face and the second face of the rotary lock are both arched, and have respective radii of curvature, with the radius of curvature of at least one of the first or second face varying around a central axis lock. In a preferred embodiment of the invention, the second face of the rotary lock has a constant radius of curvature; that is, it is a cylindrical part; whereas the first face has a variable radius of curvature; that is to say, a spiral is formed.
    [0010] The wear element can be arranged to align around the base along a longitudinal axis. The central axis of the lock may be perpendicular to this longitudinal axis, but it is preferred that this central axis of the lock be oriented about 10 ° to 20 ° with respect to the perpendicular.
    [0011] The first face and second face of the rotary lock can be positioned on a single support element. It is preferred that the support element includes a body portion, which is cylindrical, and has an outer surface forming the second face of the rotary lock. It is also preferred that the support element has an engagement portion projecting from one side of the body portion, the engagement portion having an outer surface, at least a part of which forms the first face of the rotary latch.
    [0012] The engagement portion may be formed from an introductory portion, which may include a substantially rectilinear outer edge, attached to a spiral portion. The engagement portion can generally be annular, with an outer wall and an inner wall. In this arrangement, the outer wall of the spiral portion forms the first face of the rotary lock.
    [0013] The height of the coupling portion in relation to the body portion can vary around the annular space. It is preferred that the height of the spiral portion is at a minimum at one end of the introductory portion, and at a maximum at one location in the spiral portion that is positioned on a line that is perpendicular to the introductory portion and that passes through the central axis of the lock .
    [0014] The support element can be coupled to an operable element. In a preferred embodiment, the operable element includes a keyed projection which engages with a keyed recess in the support element.
    [0015] It is preferred that the rotary lock is retained within the wear element. The wear element can have an internal cavity, with an opening passing through a side wall of the wear element into the cavity, and the lock can be received inside the cavity. It is preferred that the cavity includes an inner region where the support element can be received, the inner region including the second support face, and an outer region where the operable element can be received. In a preferred embodiment of the invention, the inner and outer regions are separated by a toothed ring, arranged to engage with a toothed ring positioned around the rotary lock. At least one of the toothed rings is resilient, so that engaging the respective teeth will keep the lock in a desired angular position, but the application of angled to the operable element will cause the resilient toothed ring to deform to allow rotation of the hangs.
    [0016] In a preferred embodiment of the invention, the operable element includes a tool receiving recess, in which a plug formed at least partially of resilient material is positioned. The arrangement is such that the insertion of a tool into the tool receiving recess causes compression of the plug, and removal of the tool allows the return of the plug to its uncompressed state.
    [0017] The base can include a side wall having a recess, the recess having an arched wall that forms the first support surface. It is preferred that the recess is generally thinned towards the arched wall. The recess may include a shoulder spaced from the arcuate wall, the shoulder being arranged to engage with the inner wall of the engagement portion of the support element in some angular positions, to promote disengagement of the wear element from the base during the removal.
    [0018] The wear element can be an excavator tooth, and the base can be an adapter. In this embodiment, it is preferred that the adapter includes a nose having an upper and a lower part, each of the upper and lower part including two substantially flat support surfaces separated by concave joining surfaces.
    [0019] The excavator tooth has a substantially complete cavity shaped like an adapter nose, having substantially flat support surfaces separated by convex joining surfaces. The convex joining surfaces of the tooth have slightly less curvature than the concave joining surfaces of the adapter nose.
    [0020] According to a second aspect of the present invention, a coupling is provided to connect a wear element to a base, the base including a first support surface, the wear element including a second support surface; the coupling including a rotary lock having a first face arranged to support against the first support surface and a second face arranged to support against the second support surface, the lock having a central axis around which it can be rotated, the first and second faces being both axially and circumferentially spaced in relation to the central axis of the lock, so that, in use, the lock can be rotated between a position where the first and second faces are supported against the first support surface and second support surface, respectively, and a position in which the first face does not support against the first support surface or the second face does not support against the second support surface. This allows for the selective engagement and disengagement of the lock due to the rotation. Although in a preferred embodiment the present invention is allowed to tighten the lock, it will be appreciated that, in its simplest form, the invention can simply act as a lock to engage the coupling.
    [0021] According to a third aspect of the present invention, a coupling is provided to connect a wear element to a base, the coupling including a lock having at least two positions: a locked position, whereby the wear element is restricted move relative to the base and an unlocked position, where the wear element is able to move relative to the base in an unrestricted manner, and where the movement of the lock from the locked position to the unlocked position drives the wear element away from the base.
    [0022] It is preferred that the lock is rotatable, and that the two positions correspond to the two angularly spaced positions of the lock, and that the rotation of the lock from the locked position to the unlocked position causes the wear element to move in relation to the base. The movement of the wear element is preferably translational, and can be radial with respect to the rotation lock.
    [0023] In a fourth aspect of the invention, the third aspect lock works simply by a release mechanism for the wear element, rather than as a lock. According to this fourth aspect of the invention, a release mechanism is provided for a wear element mounted on a base, the release mechanism having at least two positions: a first position in which the wear element is capable of being coupled to the base , and a second position in which the release mechanism pushes the wear element away from the base.
    [0024] It is preferred that the release mechanism is rotatable, and that the two positions correspond to the two angularly spaced positions of the release mechanism, and that the rotation of the release mechanism from the first position to the second position causes the movement of the wear in relation to the base. The movement of the wear element is preferably translational, and can be radial with respect to the rotation release mechanism.
    [0025] According to a fifth aspect of the present invention, a lock is provided for coupling a wear element to a base, the lock including a cavity for engaging with a tool, in which a plug is contained within the cavity, the plug being resiliently compressible so that a tool can engage with the cavity by compression of the plug. When the tool is removed, the plug may return to its original configuration. In this way, the entry of dust and particulate matter in the cavity is substantially prevented. Brief Description of Drawings
    [0026] It will be convenient to describe the invention in more detail with reference to the preferred embodiments of the coupling mechanism of the present invention. Other modalities are possible, and consequently the particularity of the following discussion should not be understood as supplanting the generality of the preceding description of the invention. In the drawings:
    [0027] Figure 1 is a perspective view of an adapter and tooth having a coupling according to the present invention, shown before coupling;
    [0028] Figure 2 is a perspective view of the adapter and tooth of Figure 1 shown coupled;
    [0029] Figure 3 is a front view of a nose of the adapter of Figure 1, showing a first side;
    [0030] Figure 4 is a rear view of the adapter nose of Figure 3, showing a second side;
    [0031] Figure 5 is an external view of a lock receiving opening in the tooth of Figure 1, shown before receiving a toothed ring;
    [0032] Figure 6 is an internal view of the lock receiving opening of Figure 5;
    [0033] Figure 7 is an external view of the lock receiving opening of Figure 5, shown with the toothed ring inserted;
    [0034] Figure 8 is an internal view of the lock receiving opening of Figure 7;
    [0035] Figure 9 (a) is a side view of the lock receiving opening of Figure 5;
    [0036] Figure 9 (b) is a cross section through the line P-P marked in Figure 9a;
    [0037] Figure 10 is an exploded view of a lock from the coupling of Figure 1, seen from the outside;
    [0038] Figure 11 is an exploded view of the lock of Figure 10, seen from the inside;
    [0039] Figure 12 is a set of side and plan views of a support element within the lock of Figure 10;
    [0040] Figure 13 is a set of side and plan views of an operable element within Figure 10;
    [0041] Figure 14 (a) is a side view of the support element of Figure 12;
    [0042] Figure 14 (b) is a cross section through the D-D line marked in Figure 14 (a);
    [0043] Figure 14 (c) is a cross section through the E-E line marked in Figure 14 (a);
    [0044] Figure 14 (d) is a cross section through the line F-F marked in Figure 14 (a);
    [0045] Figure 14 (e) is a cross section through the line G-G marked in Figure 14 (a);
    [0046] Figure 14 (f) is a cross section through the H-H line marked in Figure 14 (a);
    [0047] Figure 14 (g) is a cross section through the line l-l marked in Figure 14 (a);
    [0048] Figure 14 (h) is a cross section through line J-J marked in Figure 14 (a);
    [0049] Figure 15 (a) is a rear view of the tooth of Figure 1, shown receiving the lock of Figure 10;
    [0050] Figure 15 (b) is a rear view of the tooth of Figure 15a, shown with the lock in place;
    [0051] Figure 16 is a side view of the adapter and tooth of Figure 1 during coupling;
    [0052] Figure 17 is a cross section through line A-A marked in Figure 16;
    [0053] Figure 18 is a cross section through line 0-0 marked in Figure 17;
    [0054] Figure 19 is an enlargement of a portion of Figure 17 showing the lock of Figure 10;
    [0055] Figure 20 is a side view of the adapter and tooth of Figure 1 after coupling;
    [0056] Figure 21 is a cross section through line C-C marked in Figure 20;
    [0057] Figure 22 is a cross section through the line K-K marked in Figure 21;
    [0058] Figure 23 is an enlargement of a portion of Figure 21 showing the lock of Figure 10;
    [0059] Figure 24 is a perspective of a driving tool being used to operate the coupling of Figure 1;
    [0060] Figure 24 (a) is an exploded view of a portion of the latch of Figure 10;
    [0061] Figures 25 (a) to 25 (c) are sequential cross sections of the power tool of Figure 24, in use;
    [0062] Figure 26 is a plan view of the adapter and tooth of Figure 1;
    [0063] Figure 27 is a cross section through the Q-Q line marked in Figure 26;
    [0064] Figure 28 is a plan view of the adapter and tooth of Figure 1;
    [0065] Figure 29 is a cross section through the Z-Z line marked in Figure 28;
    [0066] Figure 30 is a plan view of the adapter and tooth of Figure 1;
    [0067] Figure 31 is a cross section through the R-R line marked in Figure 30;
    [0068] Figure 32 is a cross section through the W-W line marked in Figure 31;
    [0069] Figure 33 is a cross section through line X-X marked in Figure 31;
    [0070] Figure 34 is a perspective view of the nose of Figure 1, showing some of the nose support areas;
    [0071] Figure 35 is a perspective view of a tar lip and lip shield having a coupling according to the present invention, shown before coupling;
    [0072] Figure 36 is a perspective view of the bucket lip and lip shield of Figure 35 shown coupled;
    [0073] Figure 37 is a rear view of the lip bulkhead of Figure 35;
    [0074] Figure 38 is a rear view of the lip shield of Figure 35 shown with an exploded view of a latch, from within the coupling of Figure 35;
    [0075] Figure 39 is a cross section of the bucket lip and screen of Figure 35 during coupling; and
    [0076] Figure 40 is a cross section of the bucket lip and screen of Figure 35 shown coupled. Detailed Description of Preferred Modalities
    [0077] With reference to the Figures, Figure 1 shows a portion of a lip 10 of a bulldozer bucket, on which an adapter 20 is positioned. A tooth 70 is shown ready for affixing to adapter 20.
    [0078] The adapter 20 has a body part 21; a nose 22 extending in front of the body part 21, on which the tooth 70 can be positioned, and two legs 24 extending behind the body part 21 around the lip 10.
    [0079] The nose 22 can be seen more clearly in Figures 3 and 4. It has a front wall 26, an upper part 28, a first side wall 30, a base 32, and a second side wall 34. The upper part 28 and the base 32 each extend from the body part 21 to the front wall 26. The upper part 28 and the base 32 are not parallel, but are generally angled towards each other so that the nose 22 it is reduced in height towards the front wall 26, with the front wall 26 being about half the height of the body part 21.
    [0080] The first and second side walls 30, 34 each extend from the body portion 21 to the front wall 26. The first and second side walls 30, 34 are each staggered from the portion body 21, but are generally parallel in the direction towards the front wall 26. The upper part 28, base 32 and front wall 26 are thus all generally rectangular, while the first and second side walls 30, 34 are generally trapezoidal.
    [0081] The precise shapes of these surfaces will be discussed in more detail below.
    [0082] The first side wall 30 and the second side wall 34 each include a recess 40. The recess 40 has a rear edge 42, which is generally parallel to the rearmost part of the respective side wall 30, 34, and an edge arched front 44, extending from either end of the rear edge 42 towards the front wall 26.
    [0083] The recess 40 is generally thinned, so that it increases in depth towards the front wall 26. The recess 40 has a base 46, which is part of the cone trunk shape, the cone axis being approximately perpendicular to the side wall 30, 34 and being positioned towards the rear edge 42, and the cone angle being extremely shallow. In the embodiment shown, the cone axis is currently about 110 away from the perpendicular, with an outer end of the axis closer to the front wall 26 than to an inner end. The base 46 is thus slightly convex. The rear part of the base 46, which is the rear edge 42, is substantially flush with the side wall 30, 34. The front part of the base 46, which is positioned under the center of the front edge 44, is spaced inwardly from the side wall 30, 34. An arched recess wall 48 extends between the leading edge 44 and the base 46. The recess wall 48 is oriented about 75 ° with respect to the side wall 30, 34. The height of the recess 48 thus slims from zero at its outer edges, at the ends of the rear edge 42, to a maximum height in the center of the front edge 44.
    [0084] Each side wall 30, 34 also includes a positioning shoulder 50. The shoulder 50 is positioned within the recess 40, and has an outer face 52. The outer face 52 is generally rectangular with upper and lower parallel edges 54 extending. from the rear edge 42 of the recess 40 towards the front wall 26. The outer face 52 is slightly convex, with the upper and lower edges 54 being parallel to a central axis of the adapter nose 22 and being flush with the edge rear 42, and a centerline of the outer face 52 projecting slightly higher.
    [0085] The outer face 52 has a leading edge 55. The corners between the leading edge 55 and the top and bottom edges 54 are curved, with a radius of curvature around one third the length of the leading edge 55. The shoulder 50 it has a sidewall 56 which is generally perpendicular to the outer face 52, and extends between the outer face 52 and the base recess 46. The sidewall 56 consists of two flat triangular portions under the upper and lower edges 54, a rectangular front portion 58, and two partially conical joining portions. The front portion 58 is spaced from the front of the recess wall 48.
    [0086] The tooth 70 has an internal cavity 72 which is generally complementary in shape to the nose 22 of the adapter 20. The tooth 70 has a first side wall 74 which is positioned on the first side wall 30 of the nose 22.
    [0087] A lock receiving opening 76 extends through the first side wall 74 between an outer surface of tooth 70 and inner cavity 72. Opening 76 is generally circular, and arranged to align with recess 40 when the tooth 70 is positioned around adapter 20. The lock receiving opening 76 is shown in detail in Figures 5 to 9.
    [0088] Opening 76 is not perpendicular to the first side wall 74, but is in fact oriented at an angle of approximately 10 ° to 15 ° towards the rear of cavity 72. This can be seen more clearly in Figure 9.
    [0089] The lock receiving opening 76 has three parts: a tooth recess 78 extending into the first side wall 74 from the internal cavity 72; a lock positioning recess 80 extending into the first side wall 74 from the outer surface of tooth 70; and a ring receiving portion 82 positioned between the tooth recess 78 and a lock positioning recess 80. The tooth recess 78 and the locking position recess 80 are both circular, coaxial and of similar diameter. The ring receiving portion 82 is substantially circular, and is smaller in diameter than the tooth recess 78 and lock positioning recess 80. Aperture 76, therefore, has a stepped configuration.
    [0090] The ring receiving portion 82 has a number of keyed openings around its periphery, in order to safely receive a toothed ring 84 within the toothed ring 84, which can be made of aluminum or a hard plastic, has a generally circular inner surface formed by a plurality of retaining teeth 86. The toothed ring 84 has external key projections sized and shaped to be press-fit within the ring receiving portion 82 of the opening 76. When the toothed ring 84 is so provided inside the opening 76, as shown in Figure 7, the teeth 86 define the separation between the tooth recess 78 and the lock positioning recess 80.
    [0091] The tooth 70 is coupled to the nose 22 of the adapter 20 by means of a lock 100. The lock 100 can be seen in Figures 10 and 11.
    [0092] Lock 100 includes a support element 102, a toothed engagement ring 104, and an operable element 106. Lock 100 also includes a screw 108 and a plug 110.
    [0093] The support element 102, which is shown in Figure 12, has a generally cylindrical body portion 112 sized to be positioned within the tooth recess 78 of the tooth 70. The body portion 112 has a first oriented side 114, in use, in the outward direction of tooth 70; and a second side 116 oriented, in use, towards cavity 72.
    [0094] The first Iado114 includes a keyed recess, positioned centrally, 118, extending into the body portion 112.
    [0095] An engagement portion 120 is positioned on the second side 116, extending outwardly from the body portion 112.
    [0096] The engagement portion 120 has a generally annular outer face 122, which is angled with respect to the sides 114,116 of the body portion 112. The engagement portion 120 thus has an outer wall 124 and an inner wall 125 that extend in an angle of approximately 75 ° to 80 ° from the second side 116 of the body portion 112, the outer wall 124 and inner wall 125, both, extending between the second side 116 of the body portion 112 and the outer face 122 The height of the outer wall 124 and inner wall 125 varies circumferentially around the outer face 122.
    [0097] Although the outer face 122 has been described as generally annular, the annular space is not circular. It includes an introductory portion 126, the introductory portion having an outer edge (i.e., part of the outer wall 124) including both a partially cylindrical portion, having a radius close to the radius of the body portion 112 and a substantially rectilinear portion. The outer face 122 also includes a spiral portion 127 which gradually increases in radius through approximately 300 °, from a minimum radius, where it joins the substantially rectilinear edge portion of the introductory portion 126, for a maximum radius where it meets joins the partially cylindrical portion of the introductory portion 126. The height of the outer wall 124 and the inner wall 125 is at a minimum in the partially cylindrical portion of the introductory portion. The height of the outer wall gradually increases along the introductory portion 126 and then the spiral portion 127, reaching a maximum height at a location of about 215 ° around the annular space from the minimum height portion. The height then decreases through the remaining 135 ° of the spiral portion 127. This can be seen by considering the sequential cross sections in Figure 14.
    [0098] It will also be noted that the outer wall 124 and inner wall 125 are not of the same height, with the outer wall 124 being higher than the inner wall around the spiral portion 127 and the inner wall being higher than the outer wall along the introductory portion 126.
    [0099] A screw receiving opening 128 passes centrally through the body portion 112, within the annular space of the engagement portion 120. The screw receiving opening 128 is recessed on the second side 116 of the body portion 112, again inside the annular space of the engagement portion 120.
    [00100] The toothed engagement ring 104 has engagement teeth 130 arranged around its exterior, dimensioned to engage with the retaining teeth 86 of the toothed ring 84. The toothed engagement ring 104 is formed from a resilient material, such as rubber.
    [00101] The toothed engagement ring 104 has a central keyed opening 132 which corresponds with the keyed recess of the support element 102.
    [00102] Operable element 106, best seen in Figure 13, has a generally cylindrical body portion 134 sized for positioning within the locking recess 80 of tooth 70. Body portion 134 has a first oriented side 136, in use, in the outward direction of tooth 70; and a second side 138 oriented, in use, towards cavity 72.
    [00103] The first Iado136 includes a cavity or recess having centrally positioned square sides, 140, extending into the body portion 134.
    [00104] A key projection 142 is positioned on the second side 138, extending outwardly from the body portion 134. The key projection 142 is dimensioned and shaped to engage both the central opening 132 of the engagement ring 104 and of the keyed recess 118 of the support element 102. The keyed projection 142 includes a centrally positioned screw receiving opening 144.
    [00105] The plug 110 is square on the side, and arranged to be positioned within the square side recess 140. The plug 110 is formed of a resilient material, fixed to a rigid base plate. The base plate includes an internally threaded screw engagement opening 145.
    [00106] The arrangement is such that the engagement ring 104 and the support element 102 can be provided, in turn, in the key projection 142 of the operable element 106, and these three elements of the lock 100 can be retained together by the screw 108 passing through the respective receiving openings 128, 144 and being screwed into the screw engagement opening 145. It will be appreciated that the keyed arrangement prevents relative rotation, and the screw 108 fixes the components together to prevent relative axial movement. It is also noted that the engagement ring 104, being rubber, can be vulcanized to the operable element 106.
    [00107] Lock 100 can be provided inside tooth 70, as shown in Figures 15 (a) and 15 (b), with support element 102 inserted from cavity 72 and operable element 106 inserted from outside tooth 70.
    [00108] The operation of lock 100 on coupling tooth 70 to adapter nose 22 will now be described.
    [00109] To prepare the coupling for use, the latch 100 is rotated inside the tooth opening 76 to a position where the introductory portion 126 of the engaging portion 120 is oriented towards the front of the tooth 70. This means that the outer face 122 of the engagement portion 120 is generally parallel to the interior of the tooth side wall 74, since the maximum height region of the engagement portion 120 is positioned within the portion of the tooth recess 78 that extends farther to inside from the inner wall.
    [00110] The tooth 70 can now be slid over the adapter nose 22, to the position shown in Figures 16 to 19. In this position, the highest part of the outer face 122 of the engagement portion 120 is positioned adjacent to the rear of the outer face 52 of the shoulder 50 of the adapter nose 22. A portion of the inner wall 125 of the engagement portion 120 adjacent to the introductory portion 126 abuts and rests against the front portion 58 of the side wall 56 of the shoulder 50.
    [00111] The clockwise rotation of the lock 100 causes the engagement portion 120 to move with respect to the adapter recess 40. Due to the increasing radius of the spiral portion 127, when the lock 100 is rotated, the inner wall 125 of the lock portion engagement 120 ceases to support against shoulder 50, but outer wall 124 of engagement portion 120 supports against recess wall 48. The uppermost portion of engagement portion 120 moves into recess 40, thereby increasing the contact support area between the outer wall 124 and the recess wall 48.
    [00112] The rotation of lock 100 through 180 ° is shown in Figures 20 to 23. In this position, lock 100 firmly retains tooth 70 in relation to adapter 20. In particular, outer wall 124 of engagement portion 120 is a first face of the latch 100, supporting against a first support surface 150 with the recess wall 48 of the adapter 20; and the outer periphery of the body portion 112 of the support element 102 is a second face of the latch 100, supporting against a second support surface 152 being the tooth recess 78 of the tooth 70.
    [00113] It will be appreciated that the arrangement is such that the latch presses against both the first and second support surfaces 150, 152 without necessarily requiring 180 ° rotation.
    [00114] When removal of lock 100 is required, lock 100 can be rotated in the opposite direction. When the inner wall 125 comes into contact with the shoulder 50, another rotation acts to push the tooth 70 away from the body part 21 of the adapter 20, allowing easy removal of the tooth 70. This can be visualized as the movement of the lock 100 between a locked position, where the lock rests against both the first and second support surfaces 150, 152; and an unlocked position in which the inner wall 125 rests against the front portion 58 of the shoulder 50, thus driving tooth 70 away from adapter 20. It will be appreciated that tooth 70 is pushed away in a radial direction from lock 100, and that its movement is therefore translational.
    [00115] In this way, lock 100 functions as a release mechanism for tooth 70, moving between a first position (the locked position) in which tooth 70 can be coupled to adapter 20, and a second position (a unlocked position) in which tooth 70 is pushed away from adapter 20.
    [00116] The lock 100 is held in a desired angular position by the engagement between the retaining teeth 86 of the toothed ring 84 and the engaging teeth 130 of the engagement ring 104. When rotation of the lock 100 is required, it can be performed using a square end tool wrench 160, as shown in Figures 24 and 25.
    [00117] The plug 110 is resilient, with an outer cover 111. Inserting the square end tool wrench 160 into the square side recess 140 causes compression of the plug 110 into the square side recess 140. When the tool 160 is removed, the plug 110 expands to refill the recess 140. This sequence can be seen in Figures 25 (a) to 25 (c).
    [00118] In addition to the lock 100, the coupling of the tooth 70 to the adapter 20 is assisted by the complementary shape of the adapter nose 22 and the tooth cavity 72.
    [00119] The upper part 28 and base 32 of the nose 22 each have a contoured surface, and include a first support surface 170 and second support surface 172, which are substantially flat, and are separated by concave joining surfaces 174 The first and second support surfaces 170, 172 are each narrower than the width of the nose 22, with the first support surface 170 being positioned within an apparently excavated portion 176 of the upper part 28 and base 32, near front wall 26.
    [00120] The tooth cavity 72 is largely complementary in shape to the adapter nose 22, with convex surfaces having slightly less curvature than the concave joining surfaces 174. This ensures small clearances around the curved surfaces, and full contact along flat support surfaces 170, 172.
    [00121] The support connection between adapter 20 and tooth 70 is in a central portion of adapter nose 22. This can be seen in a comparison between a cross section taken through the center, branch in Figure 27, and a section transversal taken in the direction to the side, as in Figure 29.
    [00122] Although the coupling has been described as a branch between a tooth and adapter, it will be appreciated that other GET couplings can be locked together in a similar manner. Figures 35 to 40 show a lip shield 180 being connected to a bucket lip 10, on which a lock coupling 182 similar to the first side wall 30 of the adapter nose 22 has been mounted. A lock 100 identical to that described in relation to to tooth 70 it can be used to couple lip shield 180 to latch coupling 182 in a similar manner.
    [00123] Modifications and variations that would be apparent to a specialized person are considered to be within the scope of the present invention.
    权利要求:
    Claims (15)
    [0001]
    1. Connection set including a wear element (70), a base (20) and a coupling to connect the wear element to the base, the base including a first support surface (150), the wear element including a second support surface (152); the coupling including a rotary lock (100) having a first face (124) arranged to support against the first support surface and a second face (112) arranged to support against the second support surface, the assembly being characterized by the fact that the first face and second face of the rotary latch are positioned on a single support element (102), and that the relative positions of the first and second faces vary around a central axis of the latch, the relative positions of the first and second second faces being adapted so that, in use, the rotation of the lock changes the distance between the first and second supporting surfaces.
    [0002]
    2. Connection set according to claim 1, characterized by the fact that the first face and the second face of the rotary lock are both arched, and have respective radii of curvature, with the radius of curvature of at least one of the first or second face varying around a central locking axis.
    [0003]
    Connection set according to claim 2, characterized by the fact that the second face of the rotary lock has a constant radius of curvature and the first face has a radius of variable curvature.
    [0004]
    Connection set according to any one of claims 1 to 3, characterized in that the wear element is arranged to align around the base along a longitudinal axis, and the central axis of the lock is oriented in about 10 ° to 20 ° with respect to a line perpendicular to the longitudinal axis.
    [0005]
    Connection set according to any one of claims 1 to 4, characterized in that the support element includes a body portion (112), which is cylindrical, and has an external surface forming the second face of the rotary lock .
    [0006]
    Connection set according to any one of claims 1 to 5, characterized in that the base comprises a side wall (30) having a recess (40), the recess comprising an arched front edge (44) which forms the first contact surface.
    [0007]
    7. Connection set according to claim 6, characterized by the fact that the recess is generally thinned in the direction towards the arched wall.
    [0008]
    Connecting assembly according to claim 5, characterized in that the support element has an engaging portion (120) projecting from one side (116) of the body portion, the engaging portion having an outer surface (122), at least part of which forms the first face of the rotary lock.
    [0009]
    Connection set according to claim 8, characterized in that the engagement portion is formed from an introductory portion (126) joined to a spiral portion (127), the introductory portion having a substantially rectilinear outer edge .
    [0010]
    Connection set according to either of claims 8 or 9, characterized by the fact that the height of the engagement portion in relation to the body portion varies around the engagement portion.
    [0011]
    Connection set according to any one of claims 1 to 10, characterized by the fact that the first and second faces are both axially and circumferentially spaced in relation to the central axis of the lock, so that, in use, the lock can be rotated between a position where the first and second faces support against the first support surface and second support surface, respectively, and a position where the first face does not support against the first support surface and / or the second face it cannot be supported against the second support surface.
    [0012]
    12. Coupling to connect a ground penetrating tool (70) to excavator buckets (10), characterized by the fact that the coupling includes a lock having at least two positions: a locked position by which the ground penetrating tool is restricted move in relation to the excavator bucket and an unlocked position in which the ground tool is able to move relative to the excavator bucket in an unrestricted manner, and in which the movement of the lock from the locked position to the unlocked position propels the ground penetrating tool away from the bulldozer bucket.
    [0013]
    13. Release mechanism for a soil penetration tool mounted on an excavator bucket, characterized by the fact that the release mechanism has at least two positions: a first position in which the soil penetration tool is capable of being coupled to the bulldozer bucket, and a second position where the release mechanism pushes the ground-penetrating tool away from the bulldozer bucket.
    [0014]
    14. Release mechanism according to claim 13, characterized by the fact that the release mechanism is rotatable, with the two positions corresponding to the two angularly spaced positions of the release mechanism, and with rotation of the release mechanism from the first position to the second position causing the movement of the ground penetrating tool in relation to the excavator bucket.
    [0015]
    15. Release mechanism according to claim 14, characterized by the fact that the movement of the ground penetrating tool is substantially translational.
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    同族专利:
    公开号 | 公开日
    EP2649244A1|2013-10-16|
    AP2013006977A0|2013-07-31|
    AU2016200757A1|2016-02-25|
    US20180080200A1|2018-03-22|
    CN103299006B|2018-07-13|
    JP6159375B2|2017-07-05|
    NZ612880A|2015-01-30|
    CA3030915A1|2012-06-14|
    NZ701811A|2015-07-31|
    CA2819753A1|2012-06-14|
    AU2016200757B2|2017-01-12|
    MX2013006120A|2014-02-28|
    KR20140020844A|2014-02-19|
    CL2013001616A1|2013-12-06|
    US20130247428A1|2013-09-26|
    AU2011340794B2|2015-11-12|
    ZA201304803B|2014-09-25|
    EA201700140A1|2017-07-31|
    JP5911886B2|2016-04-27|
    MY168123A|2018-10-11|
    PE20181481A1|2018-09-17|
    MX359765B|2018-10-10|
    EA201300664A1|2013-12-30|
    CN103299006A|2013-09-11|
    KR101901468B1|2018-09-21|
    PE20141195A1|2014-09-24|
    JP2016035200A|2016-03-17|
    AP3572A|2016-02-03|
    JP2013544994A|2013-12-19|
    WO2012075531A1|2012-06-14|
    BR112013013263A2|2016-09-13|
    CA3030915C|2021-03-30|
    CA2819753C|2019-03-05|
    US9121160B2|2015-09-01|
    EP2649244A4|2018-06-13|
    US9850641B2|2017-12-26|
    US20150368882A1|2015-12-24|
    CO6721057A2|2013-07-31|
    AU2011340794A1|2013-04-18|
    EA027888B1|2017-09-29|
    AU2016200757C1|2018-08-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    NL80065C|1954-01-12|
    US2816770A|1955-09-07|1957-12-17|Vlieg Corp De|Tool holder and adapter|
    US3215445A|1962-12-28|1965-11-02|Erickson Tool Co|Tool holder and adapter|
    SE333551B|1968-12-04|1971-03-15|Bofors Ab|
    US4056893A|1976-02-13|1977-11-08|Caterpillar Tractor Co.|Eccentric retaining bolt for earthworking tools and method|
    NZ215680A|1985-04-03|1988-07-28|Gamma Lock Pty Ltd|Fastening of tooth for earthmoving equipment|
    US5435084A|1994-02-17|1995-07-25|Harnischfeger Corporation|Apparatus and method for attaching a digging tooth tip|
    US5607206A|1995-08-02|1997-03-04|Kennametal Inc.|Cutting tool holder retention system|
    US5653048A|1995-11-06|1997-08-05|Esco Corporation|Wear assembly for a digging edge of an excavator|
    US5833323A|1997-02-03|1998-11-10|Kennametal Inc.|Cutting toolholder retention system|
    US5913605A|1997-09-17|1999-06-22|G. H. Hensley Industries, Inc.|Rotary lock system for wear runner assembly|
    US6276880B1|1998-09-11|2001-08-21|Master Tool Corporation|Tool interconnect structure|
    US6129422A|1998-12-31|2000-10-10|Kennametal Inc.|Cutting tool holder retention system|
    CA2312550C|2000-06-27|2010-01-05|Quality Steel Foundries Ltd.|Torque locking system for fastening a wear member to a support structure|
    US6543318B1|2001-11-15|2003-04-08|Kennametal Inc.|Locking assembly|
    US6708431B2|2001-12-03|2004-03-23|Hensley Industries, Inc.|Excavating tooth assembly with rotatable connector pin structure|
    US6799387B2|2002-01-29|2004-10-05|Trn Business Trust|Removable adapter assembly having a retractable insert|
    ES2358627T3|2002-09-19|2011-05-12|Esco Corporation|WEAR SET AND LOCK SYSTEM FOR EXCAVATOR SHOVEL.|
    AR046804A1|2003-04-30|2005-12-28|Esco Corp|ASSEMBLY COUPLING ASSEMBLY FOR EXCAVATOR SHOVEL|
    US7171771B2|2003-04-30|2007-02-06|Esco Corporation|Releasable coupling assembly|
    AT448366T|2003-12-05|2009-11-15|Metalogenia Sa|WEAR ASSEMBLY AND COMPONENTS THEREOF, DESIGNED FOR MOVING MATERIALS SUCH AS EARTH AND STONES|
    BRPI0520798B1|2005-11-25|2017-06-13|Esti S.R.L.|GROUND ASSEMBLY FOR EARTH MOVING MACHINES|
    US7603799B2|2006-05-11|2009-10-20|Hensley Industries, Inc.|Cammed connector pin assembly and associated excavation apparatus|
    CA2667186C|2006-08-16|2013-10-01|Caterpillar Inc.|Ground engaging tool system|
    US7874086B2|2007-04-24|2011-01-25|Esco Corporation|Lock assembly for securing a wear member to earth-working equipment|
    US7788830B2|2008-02-08|2010-09-07|Cqms Razer Llc|Excavation retention assembly|
    US20090277050A1|2008-05-06|2009-11-12|Esco Corporation|Wear Assembly For Excavating Equipment|
    US8127476B2|2008-12-19|2012-03-06|Berkeley Forge & Tool, Inc.|Quick release screw connector for earth-moving equipment|
    US8523289B2|2009-04-10|2013-09-03|Kennametal Inc.|Retention assembly for cutting bit|
    US8387290B2|2010-09-08|2013-03-05|Hensley Industries, Inc.|Connector pin assembly with dual function outer end portions, and associated ground engaging apparatus|
    AU2011201408B1|2010-12-07|2012-05-31|Talon Engineering Sdn Bhd|Anchor|FR2983880B1|2011-12-08|2014-11-21|Afe Metal|MECHANICAL SYSTEM COMPRISING A WEAR PIECE AND A SUPPORT, AND BUCKET COMPRISING AT LEAST ONE SUCH A MECHANICAL SYSTEM|
    US8950092B2|2013-03-15|2015-02-10|Caterpillar Inc.|Retainer systems for ground engaging tools|
    US9175457B2|2013-03-15|2015-11-03|Caterpillar Inc.|Retainer systems for ground engaging tools|
    US9027268B2|2013-03-15|2015-05-12|Caterpillar Inc.|Retainer systems for ground engaging tools|
    US8925221B2|2013-03-15|2015-01-06|Caterpillar Inc.|Retainer systems for ground engaging tools|
    US9388553B2|2013-05-31|2016-07-12|Caterpillar Inc.|Retainer systems for ground engaging tools|
    US9328484B2|2013-05-31|2016-05-03|Caterpillar Inc.|Retainer systems for ground engaging tools|
    KR101581696B1|2014-05-29|2015-12-31|성보공업주식회사|A bucket tooth of excavator|
    SE538882C2|2015-06-26|2017-01-24|Combi Wear Parts Ab|Wear part system, lock and method for locking a wear part to the wear part holder|
    US9631346B2|2015-07-24|2017-04-25|Caterpillar Inc.|Wear member retention system for an implement|
    US9644347B2|2015-08-12|2017-05-09|Caterpillar Inc.|Retention lobe for ground engaging tip|
    US10030367B2|2015-09-29|2018-07-24|Esco Corporation|Wear member for earth working equipment|
    US10106960B2|2015-11-25|2018-10-23|Caterpillar Inc.|Lock assembly for ground engaging tool|
    US20170328035A1|2016-05-12|2017-11-16|Hensley Industries, Inc.|Connector systems in earth engaging wear member assemblies|
    US10508418B2|2016-05-13|2019-12-17|Hensley Industries, Inc.|Stabilizing features in a wear member assembly|
    US10053839B2|2016-06-10|2018-08-21|Caterpillar Inc.|Retainer system for ground-engaging tool|
    US10494793B2|2016-12-15|2019-12-03|Caterpillar Inc.|Implement tip assembly having tip with support rib|
    US10774500B2|2017-03-09|2020-09-15|Caterpillar Inc.|Power operated locking system earth moving equipment and method|
    ES2734910B2|2017-05-11|2020-04-30|Hensley Ind Inc|CONNECTOR SYSTEMS IN EARTH GEARED WEAR MEMBER ASSEMBLIES|
    US10323390B2|2017-08-30|2019-06-18|Caterpillar Inc.|Heavy duty adapter|
    USD918965S1|2018-06-19|2021-05-11|Hensley Industries, Inc.|Ground engaging wear member|
    CN109183877B|2018-11-11|2020-11-06|福建华航建设集团有限公司|A excavate forming device for irrigation canals and ditches construction|
    US10954983B2|2018-12-14|2021-03-23|Raytheon Company|Weight-triggered locking feature|
    USD905765S1|2019-03-07|2020-12-22|Caterpillar Inc.|Adapter for a ground engaging machine implement|
    US20200340217A1|2019-04-24|2020-10-29|Caterpillar Inc.|Ground Engaging Tool Assembly with Ground Engaging Tip|
    USD894970S1|2019-04-24|2020-09-01|Caterpillar Inc.|Adapter for a ground engaging machine implement|
    USD894968S1|2019-04-24|2020-09-01|Caterpillar Inc.|Adapter for a ground engaging machine implement|
    US20200340216A1|2019-04-24|2020-10-29|Caterpillar Inc.|Ground Engaging Tool Assembly with Adapter for Attaching Tip to Machine Implement|
    USD894969S1|2019-04-24|2020-09-01|Caterpillar Inc.|Tip for a ground engaging machine implement|
    US11180991B2|2020-03-12|2021-11-23|Caterpillar Paving Products Inc.|Hammerless cutting bit retention system|
    USD945498S1|2020-11-18|2022-03-08|Caterpillar Inc.|Adapter for a ground engaging machine implement|
    USD945499S1|2020-11-18|2022-03-08|Caterpillar Inc.|Adapter for a ground engaging machine implement|
    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-08-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-04-14| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-08-04| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 07/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    AU2010905369A|AU2010905369A0|2010-12-07|Anchor|
    AU2010905369|2010-12-07|
    PCT/AU2011/001585|WO2012075531A1|2010-12-07|2011-12-07|Connection assembly|
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