• 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:
    A tool for opening and / or closing rotatable joints, characterized in that it comprises a pivot ring (1), a first gripping member (3) and a second gripping member (2), and that the first gripping member (3) consists of an annular plate with a connection to a nut ( 8) adaptable form-fitting surfaces (31), and that the second gripping member (2) consists of two identical gripper arrangements including the gripper (23), the actuator (21) and the actuator bearing members (22), and that the gripper (23) is substantially equilateral triangular a plate articulated by a pivot pin (231) at the center of gravity of the plate between the pivot plates (11) and (12), and that the pivot ring (1) consists of an annular top plate (11) and a lower annular guide plate (12) between the plates the grippers (23) of the second gripping member (2), and that the guide plate (12) is adapted to slide in the slots (135) of the sliders (13), which slides are in the first in connection with the gripping member (3), and that the sliding pieces consist of an upper piece (131), a central piece (132) and a lower piece (133) connected by connecting members (134) through the pieces, such as screws to the first annular plate of the gripping member (3); (131) and the lower piece (133) are the same size, but the middle piece (132) is smaller, thereby creating a notch (135) in the gripper (23), which also has a cylindrical surface (232) with gripping pieces (233) ), and that the bearing members (22) of the actuators (21) are connected to the first gripping member, which actuators (21) are adapted to move the grippers (23) of the second gripping member (2), and that the grippers (23) are articulated and fitted to the pivot ring (1). to engage the joint shaft (6). In addition, protection requirements 2-5.
    公开号:FI12714Y1
    申请号:FIU20190113U
    申请日:2019-10-25
    公开日:2020-08-14
    发明作者:Taisto Kärnä
    申请人:Kaernae Taisto；
    IPC主号:
    专利说明:

    The invention relates to a tool for opening and / or closing a rotatable joint. The invention relates in particular to a tool used to open and close a rotating joint of relatively large dimensions.
    Larger rotating joints are used with crushers and other heavy machinery. For example, the inner jacket of a cone crusher is often attached to a support cone by a threaded connection between the thread of the main shaft and the fastening nut. The threaded joint tends to tighten while the crusher is running, so opening the joint requires a greater release force. The nut is substantially annular, i.e. the wall thickness is much smaller than the diameter of the nut, whereby the nut tends to bite into the thread when removed due to the deformation in the nut. In this case, it would be advantageous to open the nut with a force which is evenly distributed on the circumference of the nut. In connection with maintenance work, the joint is opened with standard impact-based tools, which are difficult to use due to space constraints. The use of these tools is also demanding in terms of occupational safety and is likely to cause accidents at work.
    The tool according to the invention can be used to open and close rotatable joints safely and quickly. The first gripping member of the tool is placed in connection with the rotating part of the form-fitting rotatable joint, and at the same time the second gripping member of the tool is placed in connection with the fixed part of the joint. The second gripping member is then rotated by the actuator relative to the first gripping member, whereby the gripping member is tightened to a fixed part and the connection opens or closes depending on the direction of rotation.
    The tool according to the invention comprises a pivot ring, a first gripping member and a second gripping member. The first gripping member is a plate with form-fitting surfaces to be fitted to the joint nut 2. In connection with the first gripping member, there are z actuators which move the grippers of the second gripping member. The second gripping members N are articulated to the pivot ring and adapted to grip the main shaft of the crusher. The pivot ring consists of a top plate and a lower guide plate, S 30, between the plates of which the grippers of the second gripping member are arranged. The guide plate 5 is adapted to slide in the slots of the sliding pieces, which sliding pieces are in connection with the first gripping member. The tool also includes gripper pins with retaining plates, stop pins limiting the movement of the grippers, guard plates and lifting loops.
    With the tool according to the invention, it is possible to open and close, for example, a nut fitted to the thread of the main shaft of a cone crusher, with which the inner jacket of the crusher is fastened. in connection with the mantle support cone. The tool is lowered from above onto the nut of the main shaft, whereby the first gripping member of the tool fits snugly into the nut. At the same time, the tool is focused on the main axis by means of guide pieces, after which the actuators of the second gripping member tighten the grippers on the main axis. Continuing the movement of the actuators causes a counter-rotational movement between the first and second gripping members, whereby the nut opens. The first gripping member has an internal shape-closed shape with - typically four rectangular or square grooves. Said shape fits in shape with the corresponding external shape of the nut. The second gripping member consists of two grippers articulated in connection with the pivot ring, which are moved by actuators connected to the first gripping member, such as hydraulic cylinders. The gripper consists of a plate-like lever arrangement which is articulated in connection with the pivot ring. The gripper also has a cylindrical surface which fits on the cylindrical surface of the main shaft, with gripping pieces to improve the friction properties of the gripper. The present invention overcomes the shortcomings of the known solutions and provides a tool for opening and closing rotatable joints. The invention enables a tool with which larger rotatable joints can be opened and closed safely and with good speed. In this case, the installation work can be carried out safely and efficiently, which reduces costs. o Said advantages are achieved with a tool according to the invention, which is characterized by O what is defined in the protection requirements. S 25
    O 7 In the following, the invention will be explained in detail with the aid of some preferred embodiments and with reference to the accompanying drawings. = Figure 1 shows a structure of a tool according to the invention seen obliquely from above 2. Figure 2 shows a top view of the structure of a tool according to the invention.
    Fig. 3 shows the structure of a tool according to the invention seen obliquely from above and the second protective plate and the upper plate of the pivot ring removed. Figure 4 shows a subassembly of a tool according to the invention with a pivot ring and a first gripping member seen obliquely from above. Figure 5 shows a subassembly of a tool according to the invention with a second gripping member seen obliquely from above. Fig. 6 schematically shows the fitting of a first gripping member of a tool according to the invention to a nut having four shapes which fit into the grooves of the gripping member when viewed obliquely from above. Figure 7 shows the structure of a tool according to the invention seen obliquely from below. Figure 8 shows the structure of a tool according to the invention seen from below. Figs. The central hole of the plates is slightly larger than the shaft 6 of the rotatable joint. The plates 11 and 12 are connected to each other by radial pieces 15 of the plate, the height of which is slightly greater than the thickness of the gripper 23. Arranged on the edge of the central hole of the guide plate N12 are guide pieces 14 which center the tool N on the axis. In connection with the guide pieces, there are protective pieces 141 to prevent the shaft 6
    N <Q surface damage. Lifting loops 7 are arranged on the upper plate 11. O
    O I 25 The guide plate 12 is arranged to slide in the slots 135 of the sliding pieces 13, which sliding a = pieces are in connection with the first gripping member 3. Slides form
    O = from the upper piece 131, the middle piece 132 and the lower piece 133, which pieces are
    O 2 through connecting members 134, such as screws (not shown) to the first
    O S to the gripping member 3. The upper piece 131 and the lower piece 133 are the same size, but the middle piece 132 is smaller, thereby creating a slot 135. The upper and lower pieces are provided with spaces 136 to which separate sliding elements (not shown) can be arranged.
    There are typically 3 to 5 sliders 13 placed on the outer periphery of the guide plate.
    The first gripping member 3 consists of an annular plate, the inner hole of which forms a molded surface 31 which can be fitted to the molded outer surface 81 of the nut 8. Slotted reinforcements 32 and reinforcements 33 are provided on the lower surface of the gripping member 3 to increase the gripper thickness and strength.
    The reinforcements are fixed in place by conventional methods, such as welding.
    The reinforcements 33 are, for example, plug-welded through the openings 331. The second gripping member 2 consists of two identical gripper arrangements comprising a gripper 23, an actuator 21 and actuator bearing members 22. The gripper 23 is a substantially equilateral triangular plate articulated by a pivot pin 231 12 in between.
    The pivot pin 231 is locked in place by conventional locking members 234. The gripper 23 has a cylindrical surface 232 which also fits on the cylindrical surface of the main shaft 6, with gripping pieces 233 to improve the friction properties of the gripper and to protect the shaft surface.
    The gripper is articulated by a cylinder pin 240 to the actuator 21. The actuator 21, which is best a centrally articulated hydraulic cylinder, is mounted from its bearing pins 211 to the hole 34 of the first gripper 3 plate and the bearing members 22. The bearing members 22 are 211 is fitted in a hole in the end of the horizontal plate.
    The horizontal plate is reinforced with a reinforcing plate 224. To limit the movement of the grippers 23, the stop pins 235 can be fitted in the holes in the pivot ring either on the front or rear of the gripper depending on the selected O pivot direction of the tool.
    The stop pins 235 ensure the correct position of the gripper when the S 25 tool is removed from the target. 3 The guard plates 4 are arranged around the tool and are fixed in place E by the fastening members 41. = The tool materials are made of different steels, bearing materials, & friction materials and guard materials.
    The manufacturing and joining methods are N 30 suitable for every detail.
    With the tool according to the invention, it is possible to open and close, for example, a nut 8 fitted to the thread of the main shaft 6 of a cone crusher, by means of which the inner shell of the crusher in question. in connection with the mantle support cone. The tool is lowered from above onto the nut of the main shaft, whereby the first gripping member 3 of the tool fits into the nut in a form-fitting manner. At the same time, the tool is centered with respect to the main axis by means of protective pieces 141. Thereafter, the actuators 21 5 of the second gripping member 2 cause the grippers 23 to rotate around the pivot pins 231, by means of which the grippers 23 are tightened on the main shaft. Continuing the movement of the actuators causes a counter-rotational movement between the first and second gripping members, whereby the nut opens or tightens, respectively. The figures and the related description are intended to illustrate the present invention only. The details of the tool according to the invention and its structure may vary within the scope of the inventive idea set forth in the appended protection claims. It will be apparent to one skilled in the art that the dimensions and technical solutions and material choices of the invention may vary depending on the intended use. The embodiment of the invention may vary within the conditions of use, customer needs and production methods. O OF O OF
    N <Q O
    O I 25 a O
    O o O
    N 5
    权利要求:
    Claims (5)
    [1]
    Tool for opening and / or closing rotatable joints, characterized in that - it comprises a rotating ring (1), a first gripping means (3) and a second gripping means (2), and that - the first gripping means (3) consists of an annular disc with shape-reading surfaces (31) arranged on a nut (8) in the joint, and that - the second gripping member (2) consists of two identical gripper arrangements which comprise a gripper (23), an actuator (21) and storage means ( 22) for the actuator, and that the gripper (23) is a disc substantially in the shape of an equilateral triangle, which at the center of gravity of the disc is hinged with a pivot (231) between the discs (11) and (12) of the rotating ring, and that - - the rotating ring (1) consists of an annular upper disc (11) and an annular guide disc (12) which lie further down, between which discs the gripping means (23) of the second gripping member (2) are arranged, and that - - the guide disc (12) is arranged to slide in grooves (135) of sliding pieces (13), which sliding pieces are in connection with the first grip the member (3), and that - - the sliding pieces consist of a top piece (131), a middle piece (132) and a lower piece (133), which pieces have been connected to the annular disc of the first gripping member (3) with connecting means (134), such as screws passing through the pieces, and that the top piece (131) and the bottom piece (133) are equal in size but the middle piece (132) is smaller than them, forming a cutter (135) and the gripper (23) has a surface (232) with gripping pieces (233), which surface is arranged S against the cylindrical surface of a shaft (6) and is also cylindrical, and that the storage means (22) of the actuators (21) are connected to the the first gripping means, E, which actuators (21) are arranged to set the gripping means (23) of the second gripping means (2) in motion, and that the gripping means (23) are hinged to the rotating ring (1) and arranged to grip N the axis of the joint (6).
    [2]
    Tools according to protection requirement 1, characterized in that
    The gripper is articulated with a cylinder pin (240) to the actuator (21), and that the storage means (22) consist of a vertical disc (221), in the upper end of which a horizontal disc (223) is arranged, and that - - the actuator bearing pin (211) is provided in a hole in one end of the horizontal plate.
    [3]
    Tool according to Claim 1 or 2, characterized in that the actuator (21), which is most suitably a hydraulic cylinder articulated in the middle, has been mounted through its bearing pins (211) in a heel (34) in the disc of the first gripper (3) and to the storage means (22).
    [4]
    Tool according to one of Claims 1 to 3, characterized in that limiting pins (235) for restricting the movement of the grippers (23) are arranged in the heel of the rotating ring either on the front or on the back of the gripper, depending on the selected direction of rotation of the tool.
    [5]
    Tool according to one of Claims 1 to 4, characterized in that the guide plate (12) is arranged to slide in the grooves (135) of the sliding pieces (13) during the opposite rotational movement of the first gripper (3) and the second gripper (2).
    oO
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    类似技术:
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    同族专利:
    公开号 | 公开日
    FI12714U1|2020-08-14|
    WO2021079031A1|2021-04-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4869137A|1987-04-10|1989-09-26|Slator Damon T|Jaws for power tongs and bucking units|
    US6227076B1|1999-03-20|2001-05-08|Jack E. Murray|Shaft wrench|
    US7506564B2|2002-02-12|2009-03-24|Weatherford/Lamb, Inc.|Gripping system for a tong|
    US9393678B2|2012-09-14|2016-07-19|Metso Minerals S.A.|Head bolt tightening tool for a cone crusher head assembly|
    GB2528846A|2014-07-30|2016-02-10|Stud Mate Ltd|Mechanised spanner|
    法律状态:
    2020-07-10| FGU| Utility model registered|Ref document number: 12714 Country of ref document: FI Kind code of ref document: U1 |
    优先权:
    申请号 | 申请日 | 专利标题
    FIU20190113U|FI12714U1|2019-10-25|2019-10-25|Tool for threaded joints|FIU20190113U| FI12714U1|2019-10-25|2019-10-25|Tool for threaded joints|
    PCT/FI2020/050701| WO2021079031A1|2019-10-25|2020-10-23|Tool for rotatable joints|
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