• 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 gearing unit has a housing containing gearing drivably interconnecting a rotary input to an output shaft used to propel a drive chain of a mineral mining machine. A clutch is provided which is released by hydraulic pressure to disengage the drive automatically should excessive loading occur. A spigot rotatably locked to the shaft provides a fluid passage for hydraulic fluid used to release the clutch and the fluid flow is controlled by an electromagnetic valve. A torsion bar carrying a load sensor is located within the spigot and the sensor provides an electrical signal transferred to control means for operating the valve via a slip-ring system. The torsion bar is rotatably locked to the shaft via a coupling rod disposed within the shaft and a push-in connection. The torsion bar is also rotatably secured to the spigot for easy release therefrom. Access to the bar from outside the housing is facilitated and by releasing at least the connection between the spigot and the bar, the latter can be withdrawn axially while leaving the other components intact.
    公开号:SU1426460A3
    申请号:SU853918748
    申请日:1985-07-11
    公开日:1988-09-23
    发明作者:Боле Вернер
    申请人:Геверкшафт Эйзенхютте Вестфалия (Фирма)；
    IPC主号:
    专利说明:

    ABOUT)
    4: Get Is9
    Oi 4 OS
     CM
    Fy
    34 and connecting C 35. The latter is through a twist-resistant compound; The 36 is connected to the output shaft i. The end part C 35 for this purpose has a conical part 37, which is fixed in the cone-shaped hole 38 with a tightening screw; i9. Adjacent end parts C 34 and 35 are connected by an A1 coupling made in a vvde thermal connection
    torsion resistant with axial detachment. Transmission of torque between C 34 and 35 provides key connection 43. It can be m. made of axial gearing C 34 located on the end part with corresponding engagement of the opening of sleeve 42 or in the form of a polyhedron. 19 hp f-ly, 3 ill.
    I, 1
    The invention relates to an overload fuse mechanism, mainly for driving coal plow and similar devices, with a measuring element carrying a strain gauge device with an ohmic sensor capable of elastic deformation when force is transmitted in a kinematic chain, AND an electronic regulating device disconnecting output shaft of the mechanism in case of overload.
    I The purpose of the invention is to facilitate and speed up the work on the technical maintenance and repair of the mechanism.
    FIG. Figure 1 shows the proposed mechanism with an overload safety device, namely, the area of the output shaft and devices connected to it, overload protection, axial section, FIG. 2 shows a preferred embodiment of the connection of the shafts between the measuring and connecting rods, cross section; FIG. 3 shows a preferred embodiment of the measuring rod, which is combined with other elements into one easily replaceable unified unit, a partial section.
    The overload protection mechanism, mainly for driving coal plow, is shown partly in the area of the output shaft and adjacent devices providing overload protection. The output shaft 2 is located in the housing 1 (only the segment of the shaft opposite the output
     end part of the output shaft). Coaxial to the output shaft 2 in the housing 1 is located the connection 3, made in the form of multi-plate
    5 clutch. The output shaft 2 is thus driven via a two-stage gear train (not shown) and the joint 3 when it is closed. The connection 3 has an outer annular support disc of the clutch 4 and a support of the friction disc of the clutch 5 which is concentrically located inside it, which is connected to the output shaft 2 by means of small face profile 6. The connection 3 is made in such a way that the connection is made directly by spring force and can be hydraulically opened. Position 7 denotes an annular guide piston that moves axially on the annular inner support of the friction disk of the clutch 5 and together with this support forms an annular heating chamber 8. The injection into the injection chamber 8, which is made ring-shaped, is carried out through a rotating element 9, which by means of the axial screw 10 is connected in a torsion-resistant manner to the end portion of the output shaft 2 opposite the end portion of the shaft on which the power output is provided. The rotating element 9 forms an axial extension of the output shaft 2 and is located in bearings 11 and 12 in the cylindrical element of the housing 13, which is rigidly
    40 is connected to the housing 1, on the element
    25
    The housing 13 is externally attached with a switching valve 14, which is made electromagnetic. In the housing element 13 there is a sliding ring 15 which encloses the rotating element 9 and performs a sealing function,
    The rotating element 9 has an extra-axial axial bore 16 closed by a plug 17 at its outer end. The switching valve 14 at the outlet through the radial holes 18 and 19 of the housing element 13 and, respectively, the sliding ring 15 is connected to the axial hole 16 of the rotating element 9. In the latter, a radial hole 20 is provided for this purpose adjacent to the flat annular slot 21 of the rotating element 9, wherein the fluid communication between the outlet of the switching valve 14 and the axial bore 16 takes place through the openings 18-20.
    On the inside of the end part 25 of the mold 38, which achieves the provision of an axial hole 16 of the rotating element 9 through the radial hole 22 and the annular groove 23 associated with the radial holes 24 and 25 of the output shaft 2 and respectively the support of the friction disk of the coupling 5 with the chamber 8 pumping. The arrangement of the parts is advisable to be carried out in such a way that in the case of re- loads, i.e. when the switching valve 14 was opened, the hydraulic pumping medium was injected into the pressure chamber 8 of the connection 3 through the rotating element 9 which provided rotation, while the connection 3 was suddenly disconnected. With respect to the stationary sliding ring 15. The rotating element 9 is hermetically sealed by means of high pressure seals 26 and 27. In case of possible leakage, oil is discharged through channels, 28 and 29.
    The output shaft 2 has a through stepped central bore 30, ending in recess 31, in which rotates an element 9 enters with its cylindrical end part. Rotated at an element 9 also has a through central axial bore 32, coaxial axial apertures 30 and 32 enclose the measuring element in the form of a measuring shaft 33. The measuring shaft 33 consists of two parts: a torsion or measuring rod 34 and a connecting rod 35. A connecting rod 35 with its terminal part, e primykayuschey- to the measuring rod 34 through the twisting-resistant compound 36 is coupled with the output shaft 2. The tip portion of the connecting rod
    35 for this purpose has a windowed end portion 37, which is rigidly fastened in the opening of the cone-shaped form 38, which is an integral element of the axial opening 30.
    The fastening is done by
    the tightening screw 39, which is inserted into the axial hole 30 from the end portion of the output shaft 2, and screwed into the axial threaded
    hole 40 on the conical terminal part 37 of the connecting rod 35. When tightening the tightening screw 39, the conical terminal part 37 enters the cone-shaped hole
    0
    five
    The rotating connection of the connecting rod 35 with the output shaft 2.
    Adjacent end portions of the measuring 34 and connecting rods 35 are connected in a torsion-resistant manner, designed as a plug-in coupling 41, with the possibility of axial disconnection. The coupling 41 consists of a connecting rod 35 reinforced on one side 35 of the sleeve 42, into the axial hole of which the measuring rod 34 enters with its terminal Q part. The chain connection 43 provides the torque transfer between the measuring 34 and the connecting rods 35. The connection providing the transfer of the torque, g can be made using
     located on the terminal part of the measuring rod 34 of axially gearing, which is capable of engaging with the corresponding gearing of the opening 44 of the sleeve 42. The terminal part of the measuring rod 34 can be made in the form of a polyhedron that enters the corresponding multi-faceted opening 44 to ensure the transmission of torque .
    The measuring rod 34 passes through a rotating element 9 having
    0
    five
    on its outer end part a connecting piece 45, fixed with an axial screw 46 on a rotating element 9, the adjacent end of the measuring rod 34 through a twist-resistant connection is connected to the connecting part 45, as well as to the rotating element 9 and the output shaft 2. For this purpose, the terminal part of the measuring rod 34 is made in the form of a cone 47, which fits into and fastens in the corresponding cone-shaped opening 48 of the connecting piece 45. The fastening is provided by an axial tightening screw 49, screwed into the axial threaded hole 50 of the cone 47 from the outside. The tightening screw 49 passes through the axial hole of the rotating pin 51, connected in a torsion-resistant manner to the connecting piece 45 and passing through the clamp of the case 52, connected by flanges on the outside of the housing 1. The rotating pin 51 protrudes from the housing 1 to the outside. It can be used as a drive shaft for the displacement of the coal plow. Using the tightening screw 49, the cone 47 of the measuring rod 34 is rigidly tightened in the cone-shaped hole 48 from the outside, which provides a twist-resistant connection to the rotating element 9 as well as to the output shaft 2.
    On the outside, on the coupling part 45, amplifiers 53 of measured values are located. In addition, on the outer side of the coupling part 45, contact rings 54 are also provided, which ensure the transmission of measured electrical signals to the contacts. Contact rings 54 are electrically connected to a strain gauge device with ohmic sensors 55, located in the socket 56 of the measuring rod 34.
    Since the measuring shaft 33, which consists of two parts, is connected with the output shaft 2 in a twist-resistant manner from both end parts, during operation, as well as the output shaft 2, it will transfer the load to the torsion bar. A strain gauge device with ohmic sensors 55 therefore measures directly the torsion voltage of the output shaft. 2. The measured electrical signals are perceived by sliding contacts adjacent to the contact ring 54, amplified by the amplifier 53 of the measured values and through the cable connection coming out through the input 57 are fed to
    control electronic device (not shown) and in case of overload it turns on the switching valve 14 and the connection 3 is hydraulically opened. Control electronic
    5 device can be located
    protected inside the body section 58 located on the body 1,
    To replace the measuring shaft 33 and, accordingly, the measuring
    The Q rod 34 needs only to remove the knob of the body 52 and loosen the screw 46 of the connecting piece 45 with the rotating element 9. Measuring rod 34 with the connecting piece 45
    5 is pulled out of the central axial bore of the rotating element 9 and the output shaft 2, and the connecting rod 35 remains in its previous position. When unscrewing
    0 of the tightening screw 49, the measuring rod 34 can be separated from the connecting piece. In the assembled position, the entire measuring shaft 33 is secured inside the output shaft 2 and connected to it by a twist-resistant rotating element 9, which is also an integral part of the shaft 2.
    0
    Fig. 2 shows the coupling between the measuring rod 34 and the connecting rod 35. The coupling 41 has a sleeve 42 as a connecting element. The measuring rod 34 has a through axial through hole 59. The end part of the measuring rod 34, which is inserted into the sleeve 42, made in the form of a thrust 60, having an inner cone 61, which is designed with the possibility of a strut radially by means of a pulling cone 62 lying therein,
    gg to the inner cone 61. A tightening screw 64, made in the form of a running shaft, is screwed into the threaded hole 63 of the tightening cone 62, and this tightening screw 64 is located in axial 5
    0
    7
    Nominal hole 59 measuring rod. The head of the tightening screw 64 in FIG. 3 is labeled 65. In order to allow the connection of the measuring rod 34 to rotate with the sleeve 42 on the side located outside the terminal part 66 of the measuring rod 34, a key is inserted into the axial hole 59 (FIG. 3). When tightening until the tightening screw 64, the tightening cone fits into the spacer end part 60, where it is radially spread and fixedly fixed relative to the inner wall of the coupling. Pull-down cone 62 with slot-key coupling
    67 is fixed in the expansion part. 60 with the possibility of axial displacement in such a way as to ensure the transmission of steep torque.
    FIG. 2 shows that the sleeve 42 is connected with the connecting rod 35 with the possibility of a connector. Lying inside the terminal part of the connecting rod 35 is made in the form of a cone 68 located in the cone-shaped hole 69 of the sleeve 42. The position 70 marks the tightening screw resting with its head 71 by means of the washer 72 on the step 73 of the sleeve. The tightening screw 70 is screwed into the threaded hole 74 of the connecting rod 35. When the tightening screw 70 is screwed in, the cone-shaped end is
    68 of the connecting rod 35 enters the cone-shaped hole 69, which ensures a strong attachment between the sleeve 42 and the connecting rod 35. This implies that the connecting rod 35 is connected to the output terminal part of the output shaft 2 by the other end part of the output shaft. This can be done in the manner shown in FIG. 1, or in some other way. As follows from FIG. 3, the head of the running shaft, as well as, respectively, the tightening screw 64, is located inside the through axial hole 59 of the measuring rod 34, the head 65 of the tightening screw rests on the annular step 75 of the stepped axial hole 59.
    FIG. 3 shows a continuation of the section shown in FIG. 2, on the side opposite the output
    264608
    parts. It can be seen from the drawing that in the section of the measuring shaft 33 outgoing from the rotating element 9 it has a flange element 76, which is connected to the measuring rod 34 mainly by means of a hot press connection in a torsion-resistant manner. The flange element 76 is simultaneously a support amplifiers 53 of measured values, securely located in the housing 77 of the flange element 76. The flange element 76 that is resistant to.
    15 is twisted in a manner connected to the measuring rod 34 by means of an axial screw 78 attached to a flange plate 79, which by means of the screw 80 is connected to an end part of the rotating element 9. The flange element 76 in a twisting-resistant manner connects the measuring rod 34 to the rotating element 9, as well as weekend
    25 shaft 2.
    On the side, adjacent to the flange element 76, is the bearing housing 81, starting from the measuring rod 34 and enclosing an annular contact device with a contact ring 54 and sliding contacts. The housing has an input 82 for an electric cable 83. The measuring rod 34
    .jg is located in the bearing 84 of the bearing housing 81 and in the bearing 85, which, in turn, is located between the cylindrical flange element 76 and the bearing housing 81. The front part of the bearing housing 81 is screw-fastened to the bolt 86. The measuring rod has a rotating pin 51, passing out through the cover 86 and located
    45 within a certain radius by which the coal plow path meter operates. Position 87 is marked with a housing cover screwed to housing 1.
    gQ From FIG. 3 it is clear that the flange diameter 76, in which the measured value amplifier 53 is located and the bearing housing 81, which contains an annular contact device, is connected to the measuring rod 34 in a unified unit. All of these elements are collectively removed and replaced. To replace this unified unit, the tightening screw 64 is first removed. This operation is carried out with a key inserted from the shaft journal 51 into the axial hole 59 of the measuring rod 34. After removing the housing cover, the cable is turned off from the plug connector. After that, screw 78 is unscrewed. A one-piece unit consisting of a measuring rod 34 with a strain gauge device with ohmic sensors 55, a flange element 76 with an amplifier of measured values 53 and a bearing housing 81 with an annular contact device can, if necessary, repaired at the factory as a unified unit. Replacement of parts is advisable to carry out in reverse order.
    权利要求:
    Claims (20)
    [1]
    1. Mechanism with overload fuse, mainly for driving coal plow, containing a measuring element made of a replaceable torsion measuring rod with a strain gauge device with ohmic sensors located on it and from an electronic device for controlling the load on the transmission output, safety coupling disconnecting output shaft mechanism in case of overload, characterized in that, in order to facilitate and speed up maintenance and repair work, The cop is made in the form of a prefabricated measuring shaft, which is located inside the drive shaft of the mechanism and consists of measuring and connecting rods, which are connected by an abutting end with a twist-resistant coupling with an axial connector, while the opposite ends are connected to an output shaft of the mechanism by a twist-resistant connection with the possibility of an axial connector, and the measuring rod in the disconnected position is installed with the possibility Removing the terminal from the output shaft of the mechanism or prolonging its rotary member.
    [2]
    2. The mechanism according to claim 1, which differs from the fact that the measuring
    a rod at one end with a pomop (and resistant to twisting of the joint; connected to a connecting piece mounted on the terminal part of the drive shaft of the mechanism or a rotating element connected to it with the possibility of a connector.
    five
    0
    five
    0
    five
    0
    five
    0
    five
    o t Mechanism for PP, 1 and a y i and with the fact that the connection is resistant to twisting in the form of a cone-shaped connection with the possibility of axial
    [3]
     3. l and personal part of the plug connector.
    [4]
    4. Mechanism on PP. 1-3, which is connected with the fact that the connection of the output shaft with the safety coupling is arranged to be separated hydraulically: the input shaft and the rotating element to ensure rotation of the hydraulically injected medium have a through axial bore in which the measuring shaft is located.
    [5]
    5. Mechanism on PP. 2-4, characterized in that the connected part is fastened with the possibility of a connector on the rotating element by means of a tightening screw installed in the axial threaded hole of the cone-shaped terminal part of the measuring shaft.
    [6]
    6.Mechanism on PP. 1-5, characterized in that electrical contact rings are located on the connecting piece, to which a strain gauge device with ohmic sensors is electrically connected.
    [7]
    7. Mechanism on PP. 1-6, characterized in that in the axial hole located inside the output end of the output shaft, there is a tightening screw mounted in the axial threaded hole on the inner end of the measuring shaft and, therefore, its connecting rod.
    [8]
    eight; The mechanism for PP. 1-7, that is, the measuring shaft and its connecting rod, respectively, are connected axially to the output shaft of the mechanism by means of a tightening screw.
    [9]
    9. The mechanism for PP. 1-8, about the fact that one end of the measuring rod is made
    eleven
    in the form of a plug connection having a gearing adapted to engage with a connecting piece at the terminal part of the connecting rod,
    [10]
    10. The mechanism for PP. 1-9, characterized in that the strain gauge device with ohmic sensors is located in the socket of the measuring shaft of the measuring shaft located between its terminal parts.
    [11]
    11. The mechanism for PP. 1-10, which means that the part of the measuring rod that enters the sleeve of the coupling is made in the form of a spacer end part having an internal cone, which by means of a pulling cone located in it and This screw, placed with it in a threaded connection and located in the through-axial bore of the measuring rod, is fixed in the coupling.
    [12]
    12. The mechanism according to claim 11, which is distinguished by the fact that the tightening screw with its head, located inside the axial orifice of the measuring rod, contacts the radial step of the stepped axial orifice.
    [13]
    13. The mechanism according to PP, 1-12, tl and the fact that the connecting rod with its cone-shaped end part enters the cone-shaped opening of the coupling and is secured in it by means of a tightening screw j screwed into the axial threaded hole of the connecting rod.
    [14]
    14.Mechanism on PP. 1-13, about t -. with the fact that the measuring rod in the area coming out of the rotating element is provided with a possibility of fixation
    142646012
    a flange element connected in a twist-resistant manner with this section and having the possibility of separating from the output shaft of the mechanism and the corresponding rotating element.
    [15]
    15, a Mechanism according to claim 14, characterized in that the flange element is designed as a support for an amplifier of measured values.
    [16]
    16, the mechanism according to claim 15, wherein the flange element has a housing in which the amplifier of the measured values is located,
    [17]
    17, the Mechanism on PP. 14-16, characterized in that the contact rings, strain gauge device with ohmic sensors, measuring rod and flange element are connected into one unified unit, made in the form of a collapsible unit,
    [18]
    18, the Mechanism according to claim 17, which is based on the fact that the contact rings are located in the housing of the sub-body, located on the side of the flange element.
    [19]
    19, the Mechanism according to claim 18, characterized in that the measuring rod is located in the bearing of the body of the strain gauge device, wherein it is provided with an additional bearing placed between the body of the strain gauge device and the flange element.
    [20]
    20. Mechanism on PP. 1-19, the difference is that the measuring shaft and its measuring rod, respectively, have a rotating pivot protruding from the body of the mechanism mounted with the ability to interact with a device for measuring the coal plow path.
    N
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    US1249736A|1917-12-11|Clutch-operating mechanism.
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    GB2242715A|1991-10-09|Clutch assembly
    CN85105816A|1987-01-28|The transmission device of overload protection-be specially adapted to drive coal plough or other similar machinery are arranged
    同族专利:
    公开号 | 公开日
    GB2161575B|1988-04-13|
    GB2161575A|1986-01-15|
    DE3425638A1|1986-01-16|
    PL254475A1|1986-06-17|
    BE902868A|1985-11-04|
    PL146188B1|1989-01-31|
    FR2567605B1|1989-12-01|
    ES545114A0|1986-06-01|
    DE3425638C2|1993-09-30|
    GB8517510D0|1985-08-14|
    US4667790A|1987-05-26|
    ES8608127A1|1986-06-01|
    FR2567605A1|1986-01-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB716860A|1950-07-28|1954-10-13|Yves Conan|Improvements in or relating to airplane cabin compressors|
    GB927931A|1958-06-20|1963-06-06|Egerton Smith Engineers Ltd|Improvements in or relating to torque responsive devices and mechanisms incorporating such devices|
    US2973067A|1958-08-12|1961-02-28|Television Associates Inc|Torque responsive control device|
    US3245285A|1964-02-28|1966-04-12|La Salle Machine Tool|Overload protector for machine tools|
    GB1384173A|1972-05-31|1975-02-19|Anderson Mavor Ltd|Overload cut-out mechanism for mining machine mechanical haulage mechanism|
    GB1587294A|1977-06-02|1981-04-01|Dresser Europe Sa|Mining machine haulage transmission|
    DE3043237C2|1980-11-15|1989-04-27|Gewerkschaft Eisenhuette Westfalia Gmbh, 4670 Luenen, De|
    DE3248084A1|1982-12-24|1984-06-28|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|TRANSMISSION WITH OVERLOAD PROTECTION, ESPECIALLY FOR THE DRIVE OF CARBON PLANES AND THE LIKE|
    DE3323250C2|1983-06-28|1992-12-10|Westfalia Becorit Industrietechnik Gmbh, 4670 Luenen, De|DE4214688C2|1992-05-02|2003-06-12|Dbt Gmbh|Setup for the automatic final shutdown of a mining plane|
    DE4236519C2|1992-10-29|2003-01-16|Dbt Gmbh|Method and device for overload protection of chain drives, especially for chain-drawn coal planes and. like.|
    DE4316798C2|1993-05-19|2002-06-27|Reliance Electric Ind Co|Method for controlling motor start-up and start-up phase in drive devices for chain drives of face conveyors or planing systems and corresponding drive devices|
    US8042402B2|2008-05-01|2011-10-25|General Electric Company|Modular sensor assembly|
    CN103115124B|2013-03-04|2015-06-17|宁波新宏液压有限公司|Planet gear speed reducer with clutch device|
    WO2015099632A1|2013-12-24|2015-07-02|Общество С Ограниченной Ответственностью "Корум Групп"|Mining machine reduction drive disengagement mechanism|
    WO2016089338A1|2014-12-04|2016-06-09|Общество С Ограниченной Ответственностью "Корум Групп"|Drive for the working member of a cutter-loader|
    CN112628374B|2020-12-16|2021-12-21|西南大学|Self-adaptive automatic speed changing system for longitudinal driving transmission sensing of electric automobile|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3425638A|DE3425638C2|1984-07-12|1984-07-12|Gearbox with overload protection, in particular for driving coal planes and the like.|
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