Coupling disassembly device and coupling disassembly method

Abstract

The present invention relates to the technical field of subway train maintenance, and particularly relates to a coupling disassembling device and a coupling disassembling method. The coupling disassembling device includes a maintenance track and a traction mechanism; the maintenance track is for the train to be maintained to drive in; the traction mechanism is detachably connected to the gear transmission device and applies a traction force to the gear transmission device, so that the gear transmission device rotates around its output shaft between a first state where the first half coupling and the second half coupling are opposite and a second state where the first half coupling and the second half coupling are staggered. The coupling disassembling method uses this coupling disassembling device. By using this coupling disassembling device and method for the maintenance operation of the coupling, it does not occupy the normal car-lifting track, improves the operation safety, does not affect the overhaul of other subway trains, and there is no need to disassemble the entire bogie from the train, greatly reducing the workload and saving the maintenance time and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of subway train maintenance, and particularly to a coupling disassembly device and a coupling disassembly method. Background Art

[0002] A traction motor and a gear transmission device are connected by a coupling to compensate for the relative movement between the motor shaft and the driving gear shaft caused by uneven track, vertical, longitudinal and lateral displacements, and a series of deflection changes between cars in the air when passing through curves and bends during the operation of the subway train, and at the same time transmit the torque and rotational movement output by the traction motor to the gearbox.

[0003] The bogie is one of the important components of a rail vehicle. The motor, coupling and gear transmission device are all integrated on the bogie. During daily inspections, it is necessary to replace the coupling. In the related art, the bogie is first lowered from the train, and then the wheel set and the traction motor are disassembled, so that the coupling is exposed, and finally the coupling is removed from the gearbox. This method of disassembling the coupling has complex procedures, long maintenance time, and the maintenance process is carried out on the train track, which will seriously affect the overhaul of the train and result in low operation safety and reliability. Summary of the Invention

[0004] The first object of the present invention is to provide a coupling disassembly device to solve, to a certain extent, the technical problems in the prior art that the long maintenance time seriously affects the overhaul of other trains and the operation safety and reliability are low.

[0005] The second object of the present invention is to provide a coupling disassembly method to solve, to a certain extent, the technical problems in the prior art that the long maintenance time seriously affects the overhaul of other trains and the operation safety and reliability are low.

[0006] To achieve the above objects, the present invention provides the following technical solutions;

[0007] Based on the above first object, the coupling disassembly device provided by the present invention is used to disassemble the coupling between the gear transmission device and the motor of the subway train. The coupling includes a first half-coupling and a second half-coupling connected to each other by bolts. The first half-coupling is connected to the motor, and the second half-coupling is connected to the gear transmission device. The coupling disassembly device includes a maintenance track and a traction mechanism;

[0008] The maintenance track has a maintenance station for the train to be maintained to drive in;

[0009] The traction mechanism is detachably connected to the gear transmission device and applies a traction force to the gear transmission device, so that the gear transmission device rotates around its output shaft between a first state in which the first half coupling and the second half coupling face each other and a second state in which the first half coupling and the second half coupling are offset from each other.

[0010] In any of the above technical solutions, optionally, the traction mechanism includes a fixed seat, a winch assembly, a traction cable, and a swing rod assembly;

[0011] The fixed seat is arranged on the maintenance track, and the winch assembly is arranged on the fixed seat;

[0012] One end of the traction cable is wound around the winch assembly, and the swing rod assembly is detachably connected between the other end of the traction cable and the boom mounting seat of the gear transmission device;

[0013] When the winch assembly can actively wind up the traction cable, the gear transmission device can rotate from the second state to the first state;

[0014] When the gear transmission device rotates from the first state to the second state under the action of gravity, the winch assembly can passively release the traction cable.

[0015] In any of the above technical solutions, optionally, the swing rod assembly includes a swing rod, and a connection seat and a connection ring respectively connected to both ends of the swing rod;

[0016] The connection seat is detachably connected to the boom mounting seat, and the connection ring is detachably connected to the other end of the traction cable.

[0017] In any of the above technical solutions, optionally, the winch assembly includes a winch around which the traction cable is wound and a hand crank arranged on the side of the winch;

[0018] Alternatively, the winch assembly includes a winch around which the traction cable is wound and a driving member connected to the winch, and the driving member can drive the winch to rotate.

[0019] In any of the above technical solutions, optionally, the maintenance track includes a maintenance track body and a bracket, and the maintenance track body is arranged on the top of the bracket.

[0020] In any of the above technical solutions, optionally, the fixed seat is connected to the bottom of the bracket and is located on the side of the maintenance station.

[0021] In any of the above technical solutions, optionally, the coupling disassembling device further includes a support mechanism;

[0022] The support mechanism is disposed on the maintenance track in a liftable manner, so that the support mechanism can support or avoid the bottom of the gear transmission device.

[0023] In any of the above technical solutions, optionally, the support mechanism includes a support seat provided with an internal thread and a support rod provided with an external thread;

[0024] The support seat is disposed on the maintenance track, and the support rod is threadedly connected to the support seat. Rotating the support rod can cause the support rod to move up and down relative to the support seat.

[0025] In any of the above technical solutions, optionally, the support mechanism further includes a support pad assembly and a bearing;

[0026] The support pad assembly is rotatably disposed on the top of the support rod, and the bearing is disposed between the support pad assembly and the support rod.

[0027] The support pad assembly includes a load-bearing platform, a connecting shaft, and an anti-slip pad laid on the top of the load-bearing platform;

[0028] The load-bearing platform is rotatably connected to the top of the support rod through the connecting shaft, and the bearing is disposed between the load-bearing platform and the connecting shaft.

[0029] Based on the above second object, the coupling decomposition method provided by the present invention uses the coupling decomposition device provided by any of the above technical solutions to decompose the coupling. The coupling decomposition method includes the following steps:

[0030] Drive the train to be maintained to the maintenance station on the maintenance track;

[0031] Remove the bolts between the first half coupling and the second half coupling;

[0032] Connect the traction mechanism to the gear transmission device;

[0033] Remove the bolts between the gear transmission device and the anti-falling plate of the bogie. Under the action of gravity, the gear transmission device rotates around the output shaft of the gear transmission device to overcome the traction force applied by the traction mechanism to the gear transmission device, so that the first half coupling and the second half coupling are misaligned;

[0034] Disassemble and replace the first half coupling and the second half coupling respectively.

[0035] The coupling disassembling device provided by the present invention includes a maintenance track and a traction mechanism. The maintenance track has a maintenance station for the maintenance train to drive in, providing a place outside the car-lifting track for the maintenance of the couplings of the train to be maintained, which can avoid the train to be maintained occupying the car-lifting track, thus not affecting the normal major overhaul of other subway trains on the car-lifting track, and can ensure the major overhaul efficiency and the safety of the maintenance operation. The traction mechanism is detachably connected to the gear transmission device and applies a traction force to the gear transmission device. On the one hand, when the bolts between the first half coupling and the second half coupling are disassembled, during the process of the gear transmission device rotating to the second state where the first half coupling and the second half coupling are misaligned under the action of gravity, it can provide resistance to the gear transmission device. On the second hand, when the gear transmission device is in the second state and there is no spatial interference between the first half coupling and the second half coupling, maintenance personnel can disassemble and replace the first half coupling and the second half coupling respectively, with convenient and efficient operation. On the third hand, after the disassembly and replacement of the coupling are completed, the traction mechanism can drive the gear transmission device to rotate around its output shaft from the second state to the first state where the first half coupling and the second half coupling are opposite to each other, so as to facilitate the reconnection of the first half coupling and the second half coupling, thus completing the disassembly, assembly and maintenance of the coupling. That is to say, by using this coupling disassembling device for the maintenance operation of the coupling, not only does it not occupy the normal car-lifting track, improve the operation safety, and does not affect the major overhaul of other subway trains, but also it is not necessary to disassemble the entire bogie from the train to be maintained. Only by rotating the gear transmission device and lowering it to make the first half coupling and the second half coupling misaligned can the maintenance be safely and conveniently completed, greatly reducing the workload and saving the maintenance time and efficiency.

[0036] The coupling disassembling method provided by the present invention uses the above-mentioned coupling disassembling device to disassemble the coupling, so that all the beneficial effects of the coupling disassembling device can be achieved. Description of the Drawings

[0037] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0038] Figure 1 It is a connection schematic diagram of the motor and the gear transmission device of the subway train;

[0039] Figure 2 It is a schematic diagram of the use state of the coupling disassembling device provided in the first embodiment of the present invention;

[0040] Figure 3Schematic diagram of the coupling disassembly device provided in the first embodiment of the present invention;

[0041] Figure 4 It is Figure 3 Partial enlarged view at A;

[0042] Figure 5 Schematic diagram of the traction mechanism of the coupling disassembly device provided in the first embodiment of the present invention;

[0043] Figure 6 Schematic diagram of the swing rod assembly of the coupling disassembly device provided in the first embodiment of the present invention;

[0044] Figure 7 It is Figure 6 Left view of

[0045] Icon: 1 - coupling; 10 - first half coupling; 11 - second half coupling; 2 - motor; 3 - gear transmission device; 30 - boom mounting seat; 4 - maintenance track; 40 - maintenance track body; 41 - bracket; 5 - traction mechanism; 50 - fixed seat; 51 - winch assembly; 52 - traction cable; 6 - support mechanism; 60 - support seat; 61 - support rod; 62 - bearing; 63 - load-bearing platform; 64 - connecting shaft; 65 - anti-slip pad; 7 - swing rod assembly; 70 - swing rod; 71 - connecting seat; 72 - connecting ring; 8 - support pillow. Detailed implementation manners

[0046] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Embodiment 1

[0050] The coupling disassembly device provided in this embodiment is used to disassemble the coupling between the gear transmission device 3 and the motor 2 of a subway train. Usually, the coupling includes a first half-coupling 10 and a second half-coupling 11 that are connected to each other by bolts. The first half-coupling 10 is connected to the motor, and the second half-coupling 11 is connected to the gear transmission device 3, so that the power on the motor side can be transmitted to the gear transmission device side sequentially through the first half-coupling 10 and the second half-coupling 11.

[0051] See Figures 1 to 7 As shown, the coupling disassembly device provided in this embodiment includes a maintenance track 4, a traction mechanism 5, and a support mechanism 6.

[0052] In the following, the above components of the coupling disassembly device will be specifically described.

[0053] In this embodiment, the maintenance track 4 is arranged outside the jacking track where the subway train normally runs, and is used to support the train to be maintained and provide a place outside the jacking track for the train to be maintained, which can avoid the train to be maintained from occupying the jacking track, thus not affecting the normal major overhaul of other subway trains, and can ensure the efficiency of major overhaul and the safety of maintenance operations.

[0054] The maintenance track 4 has a maintenance station for the train to be maintained to drive in. Among them, the maintenance track 4 is made according to the specifications of the operation track, so it matches the wheel discs of the train to be maintained, enabling the train to be maintained to drive between the operation track and the maintenance track 4, simplifying the transfer operation of the train to be maintained. In addition, the maintenance track 4 provides a supporting function for the train to be maintained and forms a maintenance station, so as to facilitate maintenance personnel to perform maintenance operations on the train to be maintained.

[0055] In this embodiment, the maintenance track 4 includes a maintenance track body 40 and a support 41. The support 41 supports the bottom of the maintenance track body 40 to support the maintenance track body 40 to a predetermined height from the ground, so that the maintenance station can provide sufficient maintenance space in the height direction to avoid spatial interference between the train to be maintained and the ground during the maintenance process.

[0056] Optionally, the maintenance track 4 is a maintenance rail.

[0057] Optionally, the maintenance track body 40 includes a left maintenance track body and a right maintenance track body arranged side by side. Among them, the left maintenance track body is used to support the left wheel disc of the train to be maintained, and the right maintenance track body is used to support the right wheel disc of the train to be maintained. The bracket 41 further includes a first bracket for supporting the left maintenance track body and a second bracket for supporting the right maintenance track body.

[0058] In this embodiment, the two sides of the maintenance station along the length direction of the maintenance track 4 are respectively a first side and a second side. In order to facilitate the train to be maintained to drive into and out of the maintenance station from the second side, the traction mechanism 5 is arranged on the maintenance track 4 and located on the first side of the maintenance station.

[0059] In this embodiment, the traction mechanism 5 includes a fixed seat 50, a winch assembly 51, a traction cable 52 and a swing rod assembly 7.

[0060] The fixed seat 50 is used for fixedly connecting with the ground. The winch assembly 51 is arranged on the fixed seat 50. One end of the traction cable 52 is wound around the winch assembly 51. The swing rod assembly 7 is detachably connected between the other end of the traction cable 52 and the boom mounting seat of the gear transmission device 3. The swing rod assembly 7 can transmit the traction force of the traction cable 52 to the gear transmission device 3 to form a traction effect.

[0061] The winch assembly 51 includes a winch around which the traction cable 52 is wound and a hand crank arranged on the side of the winch. By manually rotating the hand crank forward, the traction cable 52 can be wound, and the gear transmission device 3 can be rotated by the traction cable 52. When there is no external force on the hand crank, the winch can reverse under the action of an external force to release the traction cable 52. This kind of winch assembly 51 is convenient for the operator to observe the rotation of the gear transmission device 3 while operating the hand crank, which is beneficial to improving the operation safety during the rotation of the gear transmission device 3 and avoiding accidents during the construction process.

[0062] Alternatively, replace the hand crank with a driving member. The driving member drives the winch to wind the traction cable 52, and the gear transmission device 3 is rotated by the traction cable 52. When the driving member does not apply an external force to the winch, the winch can reverse under the action of an external force to release the traction cable 52. This kind of winch assembly 51 can drive the gear transmission device 3 efficiently and labor-savingly without manual operation, which is beneficial to saving manpower.

[0063] For example, the winch assembly 51 is an electric hoist. The electric hoist has a rich variety of models, which is convenient to select the most suitable model according to the actual operation requirements and is easy to select and operate.

[0064] Optionally, the fixed seat 50 is rod-shaped, and the two ends of the fixed seat 50 are respectively connected between the first bracket and the second bracket.

[0065] In this embodiment, the swing rod assembly 7 can play a role in power transmission between the traction cable 52 and the gear transmission device 3. It can be understood that if the swing rod assembly 7 is removed and the traction cable 52 is directly connected to the gear transmission device 3, the traction cable 52 can also exert a traction effect on the gear transmission device 3. However, since the traction force acts directly on the gear transmission device 3, the corresponding force arm of the traction force is small, and the traction effect cannot be fully exerted. That is to say, by setting the swing rod assembly 7, the traction force provided by the traction cable 52 can be fully exerted.

[0066] In this embodiment, the swing rod assembly 7 includes a swing rod 70, and a connecting seat 71 and a connecting ring 72 respectively connected to both ends of the swing rod 70. The connecting seat 71 is detachably connected to the boom mounting seat 30, and the connecting ring 72 is detachably connected to the other end of the traction cable 52. By setting the connecting seat 71 and the connecting ring 72, the swing rod assembly 7 is conveniently detachably connected to the gear transmission device 3 and the traction cable 52, and since the boom mounting seat 30 is an inherent structure of the gear transmission device 3, the inherent structure of the gear transmission device 3 is reasonably utilized.

[0067] During the disassembly and assembly process of the coupling 1, in the steps of disassembling and installing the bolts between the anti-drop plate and the gear transmission device 3, there is a situation where the bolts in the installed state are not sufficient to bear the gravity of the gear transmission device 3, resulting in an accidental drop of the gear transmission device 3. Therefore, in order to improve the operation safety of these two steps, the coupling disassembly device further includes a support mechanism 6 for supporting the bottom of the gear transmission device 3 during these two steps.

[0068] In this embodiment, the support mechanism 6 is disposed on the maintenance track 4 in a liftable manner, so that the support mechanism 6 can support or avoid the bottom of the gear transmission device 3. Specifically, before disassembling and installing the bolts between the anti-drop plate and the gear transmission device 3, the support mechanism 6 can be raised to contact and abut against the bottom of the gear transmission device 3, thereby providing a positioning and supporting effect for the gear transmission device 3, and the maintenance personnel can safely disassemble and install the bolts; when the disassembly and assembly of the traction mechanism 5 and the gear transmission device 3 have been completed, the support mechanism 6 can be lowered to disengage from the bottom of the gear transmission device 3 and avoid the rotation path of the gear transmission device 3, and the maintenance personnel can safely complete the disassembly and assembly of the traction mechanism 5.

[0069] Optionally, a support pillow 8 is lapped between the left maintenance track body and the right maintenance track body, and the support mechanism 6 is disposed on the support pillow 8 in a liftable manner, so that the support mechanism 6 is disposed on the maintenance track 4 in a liftable manner through the support pillow 8.

[0070] In this embodiment, the support mechanism 6 includes a support seat 60, a support rod 61, a support pad assembly, and a bearing 62.

[0071] The support seat 60 is arranged on the inspection rail body 40 , and the support rod 61 is connected to the support seat 60 by threads. Rotating the support rod 61 can make the support rod 61 rise and fall relative to the support seat 60 , thereby realizing the lifting function of the support mechanism 6 .

[0072] Optionally, the support seat 60 is welded to the inspection rail body 40. In order to improve the supporting effect, the left inspection rail body and the right inspection rail body are both provided with a supporting mechanism 6.

[0073] The support pad assembly includes a load-bearing platform 63, a connecting shaft 64, and an anti-skid pad 65 laid on the top of the load-bearing platform 63. The load-bearing platform 63 is rotatably connected to the top of the support rod 61 through the connecting shaft, and the bearing 62 is arranged between the load-bearing platform 63 and the connecting shaft.

[0074] Specifically, when the support rod 61 is rotated clockwise, the support rod 61 can be raised, and the load-bearing platform 63 with the anti-skid pad 65 on the top can be driven to rise, until the anti-skid pad 65 contacts and presses the gearbox transmission device, so that the support and positioning functions of the support assembly can be realized. The anti-skid pad 65 can prevent the gearbox transmission device from slipping relative to the support assembly, thereby facilitating the reliability of the positioning function. When the support rod 61 is rotated counterclockwise, the support rod 61 can be lowered, and the load-bearing platform 63 can be driven to lower, until the load-bearing platform 63 is clear of the gearbox.

[0075] Among them, on the first aspect, the threaded connection is conducive to improving the supporting force of the support rod 61 and preventing the support rod 61 from accidentally falling; on the second aspect, due to the provision of the anti-slip pad 65, it can not only prevent slipping but also avoid scratching the gear transmission device 3; on the third aspect, by arranging a bearing 62 between the load-bearing platform 63 and the connecting shaft, when the load-bearing platform 63 is in contact with the gear transmission device 3 through the anti-slip pad 65, the support rod 61 is rotated, and the load-bearing platform 63 does not rotate synchronously with the support rod 61, which can avoid the load-bearing platform 63 and the support rod 61 from moving together and causing the gear transmission device 3 to be scratched.

[0076] Optionally, the anti-slip pad 65 is made of rubber.

[0077] Embodiment 2

[0078] Embodiment 2 provides a coupling disassembly method. This embodiment uses the coupling disassembly device of embodiment 1 to disassemble the coupling. The technical features of the coupling disassembly device disclosed in embodiment 1 will not be described again.

[0079] Combination Figures 1 to 4 The coupling disassembly method provided in this embodiment comprises the following steps:

[0080] Step S100, driving the train to be inspected to the inspection station of the inspection track 4;

[0081] Step S110, remove the bolts between the first half coupling 10 and the second half coupling 11;

[0082] Step S120, connect the traction mechanism 5 with the gear transmission device 3;

[0083] Step S130, remove the bolts between the gear transmission device 3 and the anti-drop plate of the bogie. Under the action of gravity, the gear transmission device 3 rotates around the output shaft of the gear transmission device 3 by overcoming the traction force exerted by the traction mechanism 5 on the gear transmission device 3, so that the first half coupling 10 and the second half coupling 11 are misaligned;

[0084] Step S140, disassemble and replace the first half coupling 10 and the second half coupling 11 respectively.

[0085] In the following, the coupling disassembly method will be specifically described:

[0086] Remove the bolts between the first half coupling 10 and the second half coupling 11 of the train to be overhauled located at the overhaul station. At this time, since the traction cable 52 and the swing rod assembly 7 are not yet connected to the gear transmission device 3, there is enough operating space at the coupling 1 for bolt removal.

[0087] After the bolts are removed, since the gear transmission device 3 is fixed to the anti-drop plate of the bogie by bolts, the gear transmission device 3 is still in a state of being fixedly connected to the bogie and will not fall due to the separation of the first half coupling 10 and the second half coupling 11, that is, the gear transmission device 3 still remains in the first state opposite to the first half coupling 10 and the second half coupling 11. Remove the suspension rod from the suspension rod mounting seat 30 of the gear transmission device 3 to make the suspension rod mounting seat 30 free.

[0088] Connect the connecting seat 71 of the swing rod assembly 7 with the suspension rod mounting seat 30, and connect the traction cable 52 with the connecting ring 72 of the swing rod assembly 7.

[0089] Then, rotate the winch forward until the traction cable 52 between the connecting ring 72 and the winch is tensioned, so as to connect the traction mechanism 5 with the gear transmission device 3.

[0090] Remove the bolts between the gear transmission device 3 and the anti-falling plate. After the removal is completed, the gear transmission device 3 is connected to the wheel disc only through the output shaft of the gear transmission device 3 between the gear transmission device 3 and the bogie. Since the center of gravity of the gear transmission device 3 deviates from the output shaft, the gear transmission device 3 rotates around the output shaft by overcoming the traction of the traction cable 52 under the action of gravity. At the same time, the winch rotates reversely under the traction of the gear transmission device 3 until the straight line where the gravity is located passes through the axis of the output shaft, and the gear transmission device 3 stops rotating, that is, the gear transmission device 3 is in the second state where the first half coupling 10 and the second half coupling 11 are misaligned. That is to say, when the gear transmission device 3 rotates from the first state to the second state under the action of gravity, the winch assembly 51 can passively release the traction cable 52, so that the gear transmission device 3 rotates around the output shaft of the gear transmission device 3 by overcoming the traction force applied by the traction mechanism 5 to the gear transmission device 3 under the action of gravity to the second state. In the second state, the first half coupling 10 and the second half coupling 11 are misaligned, so there is no spatial interference, which is convenient for maintenance personnel to disassemble and replace the first half coupling 10 and the second half coupling 11 respectively. In addition, during the process from the first state to the second state, the traction mechanism 5 provides resistance to the downward movement of the gear transmission device 3 under the action of gravity, so as to avoid the gear transmission device 3 falling rapidly instantaneously and causing impact on the output shaft and other components of the bogie, playing a role of damping and buffering protection.

[0091] After the disassembly and replacement are completed, rotate the winch forward, and the traction cable 52 drives the gear transmission device 3 to rotate by overcoming the gravity of the gear transmission device 3, so that the gear transmission device 3 rotates to and remains in the first state. That is to say, when the winch assembly 51 can actively wind up the traction cable 52, the gear transmission device 3 can rotate from the second state to the first state.

[0092] Tighten the bolts between the anti-falling plate and the gear transmission device 3, so as to fix the gear transmission device 3 to the bogie again.

[0093] Remove both the traction cable 52 and the swing assembly.

[0094] Tighten the first half coupling 10 and the second half coupling 11 with bolts, that is, complete the maintenance and disassembly of the coupling 1.

[0095] During the disassembly and assembly of the coupling 1, in the steps of disassembling and installing the bolts between the anti-falling plate and the gear transmission device 3, for example, between step S120 and step S130, support the support mechanism 6 at the bottom of the gear transmission device 3 to improve the operation safety of these two steps.

[0096] The coupling decomposition method in this embodiment has the advantages of the coupling decomposition device in Embodiment 1, and the advantages of the coupling decomposition device disclosed in Embodiment 1 will not be repeated here.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention. In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present invention and forms different embodiments. For example, any one of the claimed embodiments can be used in any combination. The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those skilled in the art.

Claims

1. A coupling disassembly device is used to disassemble the coupling between the gear transmission device and the motor of a subway train. The coupling includes a first half-coupling and a second half-coupling that are connected to each other by bolts. The first half-coupling is connected to the motor, and the second half-coupling is connected to the gear transmission device. It is characterized in that It includes a maintenance track and a traction mechanism; The maintenance track has a maintenance station for the train to be maintained to drive in; The traction mechanism is detachably connected to the gear transmission device and applies a traction force to the gear transmission device, so that the gear transmission device rotates between a first state where the first half coupling and the second half coupling are opposite and a second state where the first half coupling and the second half coupling are staggered; the traction mechanism includes a fixed seat, a winch assembly, a traction cable, and a swing rod assembly; The winch assembly is arranged on the fixed seat, one end of the traction cable is wound around the winch assembly, and the swing rod assembly is detachably connected between the other end of the traction cable and the boom mounting seat of the gear transmission device; When the winch assembly can actively wind up the traction cable, the gear transmission device can rotate from the second state to the first state; When the gear transmission device rotates from the first state to the second state under the action of gravity, the winch assembly can passively release the traction cable; The swing rod assembly includes a swing rod, and a connecting seat and a connecting ring respectively connected to both ends of the swing rod; The connecting seat is detachably connected to the boom mounting seat, and the connecting ring is detachably connected to the other end of the traction cable; The winch assembly includes a winch around which the traction cable is wound and a hand crank arranged on the side of the winch; Alternatively, the winch assembly includes a winch around which the traction cable is wound and a driving member connected to the winch, and the driving member can drive the winch to rotate.

2. The coupling disassembling device according to claim 1, characterized in that, The maintenance track includes a maintenance track body and a bracket, and the maintenance track body is arranged on the top of the bracket.

3. The coupling disassembling device according to claim 2, wherein, The fixed seat is connected to the bottom of the bracket and is located on the side of the maintenance station.

4. The coupling disassembling device according to claim 1, characterized in that, It further includes a support mechanism; The support mechanism is arranged on the maintenance track in a liftable manner, so that the support mechanism can support or avoid the bottom of the gear transmission device.

5. The coupling disassembling device according to claim 4, characterized in that, The support mechanism includes a support seat provided with internal threads and a support rod provided with external threads; The support seat is arranged on the maintenance track, and the support rod is threadedly connected to the support seat. Rotating the support rod can make the support rod lift relative to the support seat.

6. The coupling disassembling device according to claim 5, wherein The support mechanism further includes a support pad assembly and a bearing; The support pad assembly is rotatably arranged on the top of the support rod, and the bearing is arranged between the support pad assembly and the support rod; The support pad assembly includes a load-bearing platform, a connecting shaft, and an anti-slip pad laid on the top of the load-bearing platform; The load-bearing platform is rotatably connected to the top of the support rod through the connecting shaft, and the bearing is arranged between the load-bearing platform and the connecting shaft.

7. A coupling decomposition method, characterized in that, Using the coupling disassembly device according to any one of claims 1 to 6 to disassemble the coupling, the coupling disassembly method includes the following steps: Drive the train to be maintained to the maintenance station of the maintenance track; Remove the bolts between the first half coupling and the second half coupling; Connect the traction mechanism to the gear transmission device; Remove the bolts between the gear transmission and the anti-drop plate of the bogie. Under the action of gravity, the gear transmission rotates around the output shaft of the gear transmission, overcoming the traction force exerted by the traction mechanism on the gear transmission, so that the first half coupling and the second half coupling are misaligned; Disassemble and replace the first half coupling and the second half coupling respectively.

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