Track locomotive traction motor shaft head round nut disassembling and assembling tool

Abstract

The embodiment of the utility model provides a dismounting and mounting tool for a round nut of a traction motor shaft head of a rail locomotive, and belongs to the technical field of mechanical tools. The dismounting and mounting tool for the shaft head round nut of the traction motor of the rail locomotive comprises a mounting piece, at least one positioning block and a first connecting piece, wherein the mounting piece is used for covering the shaft head round nut; the positioning block is arranged on the mounting piece, and the positioning block is used for being correspondingly inserted into the open slot; the first connecting piece is connected to the mounting piece and used for being connected with the driving piece so as to drive the shaft head round nut to rotate relative to the motor shaft head through the mounting piece and the positioning block under driving of the driving piece. The problems that when a shaft head round nut is knocked and fastened, the shaft head round nut is stressed unevenly, a motor shaft head bears uneven impact force, and threads of the motor shaft head are damaged are solved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical tooling, and particularly relates to a disassembly and assembly tool for a round nut at the shaft end of a traction motor of a rail locomotive. Background Art

[0002] Railway locomotives run on rails. Due to factors such as uneven tracks and speed changes, the traction motors of railway locomotives are in a vibrating state for a long time. This continuous vibration will cause fatigue damage to various components of the traction motor, especially components that actively bear high stress, such as the driving gear connected to the rotating shaft of the traction motor. At the same time, due to the clearance between the axle and the bearing housing, when the driving gear connected to the rotating shaft of the traction motor is engaged, the clearance will cause the driving gear to deviate from the axis of the axle during meshing. Problems such as the mutual deviation of the axes of the driving gear and the axle and the assembly process may cause the driving gear to fall off. To prevent the driving gear from falling off and causing a train operation safety accident, a locking round nut is designed at the shaft end of the traction motor.

[0003] Refer to Figure 1 , after the round nut 200 at the shaft end is installed on the motor shaft end 100, the outer peripheral wall of the round nut 200 is partially covered by the flanging of the locking washer 110, resulting in the inability to use a pneumatic wrench or an electric wrench to tighten the round nut 200 at the shaft end. Currently, the conventional tightening method for the round nut 200 at the shaft end is to open a notch on the outer peripheral wall of the round nut 200 and use a hammer and a cold chisel to impact the notch of the round nut 200 at the shaft end, so that the round nut 200 at the shaft end rotates on the motor shaft end 100 to tighten it.

[0004] However, when the round nut at the shaft end is tightened by knocking, due to uneven force on the round nut at the shaft end, the motor shaft end will bear uneven impact force, resulting in damage to the threads of the motor shaft end. Utility Model Content

[0005] The present application provides a disassembly and assembly tool for a round nut at the shaft end of a traction motor of a rail locomotive to solve the problem that when the round nut at the shaft end is tightened by knocking, the round nut at the shaft end is unevenly stressed, which will cause the motor shaft end to bear uneven impact force and damage the threads of the motor shaft end.

[0006] To achieve the above object, a disassembly and assembly tool for a round nut at the shaft end of a traction motor of a rail locomotive provided by an embodiment of the present application adopts the following technical solutions:

[0007] The present application provides a disassembly and assembly tool for a round nut at the shaft end of a traction motor of a rail locomotive. A locking washer and a round nut at the shaft end are sequentially arranged on the motor shaft end. At least one opening groove is opened on the outer peripheral wall of the round nut at the shaft end. The disassembly and assembly tool for a round nut at the shaft end of a traction motor of a rail locomotive includes:

[0008] An installation part, which is used to cover the shaft head round nut;

[0009] At least one positioning block, which is arranged on the installation part and is used to be correspondingly inserted into the opening groove;

[0010] A first connecting piece, which is connected to the installation part and is used to be connected with a driving piece, so as to drive the shaft head round nut to rotate relative to the motor shaft head through the installation part and the positioning block under the drive of the driving piece.

[0011] In a possible implementation manner, a clamping groove is opened at the center of the installation part, a clamping block matching the clamping groove is arranged at one end of the first connecting piece, and a bolt head cooperating with the driving piece is connected to the other end of the first connecting piece.

[0012] In a possible implementation manner, at least one installation groove is arranged on the installation part, and the corresponding part of the positioning block is inserted into the installation groove.

[0013] In a possible implementation manner, the positioning block includes a positioning part and a plugging part arranged in sequence. The positioning part matches the installation groove and is inserted into the installation groove, and the plugging part is used to be inserted into the opening groove.

[0014] In a possible implementation manner, a fastening component is further included. The fastening component includes a back plate, and the back plate covers the installation part and the positioning block to fix the positioning block on the installation part.

[0015] In a possible implementation manner, the fastening component further includes a second connecting piece. At least one of the positioning block and the installation part is provided with a first installation hole, and at least one second installation hole is opened on the back plate. The second connecting piece is connected to the first installation hole through the second installation hole.

[0016] In a possible implementation manner, a positioning component is further included. The positioning component includes at least one first positioning hole and at least one second positioning hole. The first positioning hole is located on the installation part, and the second positioning hole is located on the back plate. When the first positioning hole and the second positioning hole are opposite, the second installation hole and the first installation hole are opposite.

[0017] In a possible implementation manner, the positioning component further includes at least one positioning piece, and the positioning piece is inserted into the second positioning hole and the first positioning hole.

[0018] In a possible implementation manner, the cross section of the clamping groove is a regular polygon.

[0019] In a possible implementation, the backplane is provided with an avoidance hole for avoiding the first connecting member.

[0020] A disassembly and assembly tooling for the round nut at the shaft head of a track locomotive traction motor provided by the present application includes a mounting member, at least one positioning block, and a first connecting member. The positioning block is inserted into the opening groove, and the first connecting member is used to connect with a driving member so that, driven by the driving member, the round nut at the shaft head is driven to rotate relative to the motor shaft head through the mounting member and the positioning block.

[0021] When the positioning block is inserted into the opening groove, the positioning block abuts against the inner wall of the opening groove. When the driving member drives the first connecting member to perform a circular motion, the first connecting member drives the mounting member to perform a circular motion, and the mounting member drives the positioning block to move. The positioning block pushes the round nut at the shaft head to rotate on the motor shaft head, and fastens the round nut at the shaft head on the motor shaft head.

[0022] Compared with the fastening method of using a hammer and a chisel to impact the notch of the round nut at the shaft head to push the round nut at the shaft head to rotate on the motor shaft head, the disassembly and assembly tooling for the round nut at the shaft head of a track locomotive traction motor provided by the embodiments of the present application only needs to use a tool to drive the mounting member to rotate at a constant speed, so that the thrust of the positioning block on the round nut at the shaft head remains unchanged, so that the round nut at the shaft head can rotate at a constant speed on the motor shaft head, and it is not easy to damage the round nut at the shaft head due to excessive knocking force of the hammer and the chisel. At the same time, since the contact surface between the positioning block and the inner wall of the opening groove remains unchanged, during the process of pushing the round nut at the shaft head to rotate, it is not easy for a component force in other directions to impact the round nut at the shaft head, further ensuring that the round nut at the shaft head is not easily damaged during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0024] Figure 1 It is a schematic diagram of the installation structure of the round nut at the shaft head and the shaft head in the related art;

[0025] Figure 2 It is a schematic diagram of the overall structure of the disassembly and assembly tooling for the round nut at the shaft head of a track locomotive traction motor provided by the embodiments of the present application;

[0026] Figure 3 It is an exploded structure schematic diagram of the disassembly and assembly tooling for the round nut at the shaft head of a track locomotive traction motor provided by the embodiments of the present application.

[0027] Description of the reference numerals:

[0028] 100, motor shaft head; 110, stop washer;

[0029] 200, shaft head round nut; 210, opening groove;

[0030] 300, mounting part; 310, clamping groove; 320, mounting groove;

[0031] 400, positioning block; 410, positioning part; 420, insertion part;

[0032] 500, first connecting part; 510, clamping block; 520, bolt head;

[0033] 600, fastening assembly; 610, back plate; 611, avoidance hole; 620, second connecting part; 630, first mounting hole; 640, second mounting hole;

[0034] 700, positioning assembly; 710, first positioning hole; 720, second positioning hole; 730, positioning part.

[0035] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0036] To make the purpose, technical solutions and advantages of the present application clearer, the following will describe the technical solutions in the present application and how the technical solutions in the present application solve the above - mentioned technical problems clearly and completely with specific embodiments in combination with the drawings in the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all embodiments. These several specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0037] The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and above - mentioned drawings of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described here, for example, can be implemented in an order other than those illustrated or described here.

[0038] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0039] In the related art, railway locomotives run on rails. Due to factors such as uneven tracks and speed changes, the traction motors of railway locomotives are in a vibrating state for a long time. This continuous vibration will cause fatigue damage to various components of the traction motor, especially the components that actively bear high stress, such as the driving gear connected to the rotating shaft of the traction motor. At the same time, due to the clearance between the axle and the bearing housing, when the driving gear connected to the rotating shaft of the traction motor is engaged, the existence of the clearance will cause the driving gear to deviate from the axis of the axle when engaged. Problems such as the mutual deviation of the axes of the driving gear and the axle and the assembly process may cause the driving gear to fall off. In order to prevent the driving gear from falling off and causing a train operation safety accident, an anti-loosening axle head round nut is designed at the axle head of the traction motor.

[0040] Refer to Figure 1 , after the axle head round nut 200 is installed on the motor axle head 100, the flanging of the locking washer 110 will cover a part of the outer peripheral wall of the axle head round nut 200, resulting in the inability to use a pneumatic wrench or an electric wrench to tighten the axle head round nut 200. At present, the conventional method for tightening the axle head round nut 200 is to open a notch on the outer peripheral wall of the axle head round nut 200 and use a hammer and a cold chisel to impact the notch of the axle head round nut 200 to make the axle head round nut 200 rotate on the motor axle head 100 to tighten it.

[0041] However, when the axle head round nut is tightened by knocking, due to the uneven force on the axle head round nut, the motor axle head will bear uneven impact force, resulting in damage to the threads of the motor axle head.

[0042] Based on this, the present application provides a disassembly and assembly tool for the axle head round nut of a railway locomotive traction motor, including a mounting member, at least one positioning block, and a first connecting member. The positioning block is inserted into the opening groove, and the first connecting member is used to connect with a driving member, so as to drive the axle head round nut to rotate relative to the motor axle head through the mounting member and the positioning block under the drive of the driving member.

[0043] When the positioning block is inserted into the opening groove, the positioning block abuts against the inner wall of the opening groove. When the driving member drives the first connecting member to perform a circular motion, the first connecting member drives the mounting member to perform a circular motion, and the mounting member drives the positioning block to move. The positioning block pushes the axle head round nut to rotate on the motor axle head, and fastens the axle head round nut on the motor axle head.

[0044] Compared with the method of using a hammer and a chisel to strike the notch of the round nut on the shaft head to push the round nut on the shaft head to rotate on the motor shaft head, thereby realizing the fastening method of the round nut on the shaft head, the disassembly and assembly tool for the round nut on the shaft head of the rail locomotive traction motor provided by the embodiment of the present application only needs to use a tool to drive the installation part to rotate at a constant speed, so that the thrust of the positioning block on the round nut on the shaft head remains unchanged, so that the round nut on the shaft head can rotate at a constant speed on the motor shaft head, and it is not easy to damage the round nut on the shaft head due to excessive knocking force of the hammer and the chisel. At the same time, because the contact surface between the positioning block and the wall of the opening groove remains unchanged, during the process of pushing the round nut on the shaft head to rotate, it is not easy for the component forces in other directions to impact the round nut on the shaft head, further ensuring that the round nut on the shaft head is not easily damaged during the installation process.

[0045] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0046] Refer to Figures 1 to 3 , the present application provides a disassembly and assembly tool for the round nut on the shaft head of a rail locomotive traction motor. A stop washer 110 and a round nut 200 on the shaft head are sequentially arranged on the motor shaft head 100. At least one opening groove 210 is formed on the outer peripheral wall of the round nut 200 on the shaft head. The disassembly and assembly tool for the round nut on the shaft head of the rail locomotive traction motor includes:

[0047] An installation part 300, which is used to cover the round nut 200 on the shaft head.

[0048] At least one positioning block 400, which is arranged on the installation part 300 and is used to be correspondingly inserted into the opening groove 210.

[0049] A first connecting piece 500, which is connected to the installation part 300 and is used to be connected to a driving part, so as to drive the round nut 200 on the shaft head to rotate relative to the motor shaft head 100 through the installation part 300 and the positioning block 400 under the drive of the driving part.

[0050] Specifically, when the positioning block 400 is inserted into the opening groove 210, the peripheral wall of the positioning block 400 is in close contact with the wall of the opening groove 210.

[0051] In the embodiment of the application, when the positioning block 400 is inserted into the opening groove 210, the positioning block 400 abuts against the inner wall of the opening groove 210. When the driving part drives the first connecting piece 500 to make a circular motion, the first connecting piece 500 drives the installation part 300 to make a circular motion, and the installation part 300 drives the positioning block 400 to move. The positioning block 400 pushes the round nut 200 on the shaft head to rotate on the motor shaft head 100, and fastens the round nut 200 on the motor shaft head 100.

[0052] Compared with the method of using a hammer and a chisel to impact the notch of the shaft head round nut 200 to push the shaft head round nut 200 to rotate on the motor shaft head 100, thereby realizing the fastening method of the shaft head round nut 200, the disassembly and assembly tool for the shaft head round nut of the rail locomotive traction motor provided by the embodiment of the present application only needs to use a tool to drive the installation part 300 to rotate at a constant speed, so that the positioning block 400 applies a constant thrust to the shaft head round nut 200, so that the shaft head round nut 200 can rotate on the motor shaft head 100 at a constant speed, and it is not easy to damage the shaft head round nut 200 due to excessive knocking force of the hammer and chisel. At the same time, since the contact surface between the positioning block 400 and the wall of the opening groove 210 remains unchanged, during the process of pushing the shaft head round nut 200 to rotate, it is not easy for other direction component forces to impact the shaft head round nut 200, further ensuring that the shaft head round nut 200 is not easily damaged during the installation process.

[0053] Refer to Figure 2 and Figure 3 In some embodiments, a clamping groove 310 is provided at the center of the installation part 300, one end of the first connecting part 500 is provided with a clamping block 510 that matches the clamping groove 310, and the other end of the first connecting part 500 is connected with a bolt head 520 that cooperates with the driving part.

[0054] Specifically, the installation part 300 is a circular plate that matches the shaft head round nut 200, and the driving part can be a device such as an electric wrench or a pneumatic wrench that drives the bolt head 520 to rotate.

[0055] The driving part is connected to the bolt head 520 and drives the bolt head 520 to rotate, thereby driving the clamping block 510 to rotate. The clamping block 510 is clamped in the clamping groove 310, and the rotation of the clamping block 510 will drive the installation part 300 to rotate together, and then drive the positioning block 400 connected to the installation part 300 to make a circular motion with the center of the installation part 300 as the center of the circle. The positioning block 400 applies a thrust to the inner wall of the opening groove 210, so that the shaft head round nut 200 rotates relative to the motor shaft head 100, and the shaft head round nut 200 is fastened to the motor shaft head 100.

[0056] At the same time, the method of using the driving part to drive the shaft head round nut 200 to be fastened is more time-saving and labor-saving compared with the method of knocking the shaft head round nut 200.

[0057] Refer to Figure 2 and Figure 3 In some embodiments, at least one installation groove 320 is provided on the installation part 300, and a corresponding part of the positioning block 400 is inserted into the installation groove 320.

[0058] Specifically, in this embodiment, the number of the installation grooves 320 is four, and the four installation grooves 320 are symmetrically arranged in pairs. In other embodiments, the number of the installation grooves 320 can be any even number, and multiple pairs of installation grooves 320 are symmetrically arranged respectively. Correspondingly, the number and positions of the positioning blocks 400 correspond to those of the installation grooves 320. The symmetrically arranged positioning blocks 400 can offset the unbalanced force caused by the centrifugal force, thereby reducing the vibration of the shaft head round nut 200 and decreasing the intensity of fatigue damage generated by the shaft head round nut 200.

[0059] Part of the positioning block 400 is inserted into the installation groove 320. When the installation member 300 rotates, the wall of the installation groove 320 pushes the positioning block 400 to perform circular motion, thereby driving the positioning block 400 to apply a thrust force to the inner wall of the opening groove 210 and driving the shaft head round nut 200 to rotate relative to the motor shaft head 100.

[0060] Refer to Figure 1 and Figure 3 , in some embodiments, the positioning block 400 includes a positioning portion 410 and a plugging portion 420 arranged in sequence. The positioning portion 410 matches the installation groove 320, and the positioning portion 410 is inserted into the installation groove 320. The plugging portion 420 is used for being inserted into the opening groove 210.

[0061] Specifically, a guiding inclined surface is arranged between the positioning portion 410 and the plugging portion 420, and the cross-sectional dimension of the positioning portion 410 is larger than that of the plugging portion 420.

[0062] When the installation member 300 rotates to push the positioning portion 410 to rotate, the positioning portion 410 transmits the thrust force to the plugging portion 420, causing the plugging portion 420 to push the shaft head round nut 200 to rotate. Since the cross-sectional dimension of the positioning portion 410 is larger than that of the plugging portion 420, the force-bearing limit of the positioning portion 410 is greater than that of the plugging portion 420. When a relatively large force is transmitted from the positioning portion 410 to the plugging portion 420, it is likely to cause the interface between the positioning portion 410 and the plugging portion 420 to break. However, the guiding inclined surface arranged between the positioning portion 410 and the plugging portion 420 enables the force transmitted from the positioning portion 410 to the plugging portion 420 to gradually decrease, reducing the possibility of breakage of the plugging portion 420.

[0063] Refer to Figure 2 and Figure 3 , in some embodiments, a fastening assembly 600 is further included. The fastening assembly 600 includes a back plate 610, and the back plate 610 covers the installation member 300 and the positioning block 400 to fix the positioning block 400 on the installation member 300.

[0064] The back plate 610 serves as a medium for fixing the positioning block 400 and the installation member 300, and can also limit the positioning block 400, reducing the possibility of the positioning block 400 disengaging from the installation groove 320.

[0065] Reference Figure 2 and Figure 3 In some embodiments, the fastening assembly 600 further includes a second connecting member 620. At least one of the positioning block 400 and the mounting member 300 is provided with a first mounting hole 630, and the back plate 610 is provided with at least one second mounting hole 640. The second connecting member 620 is connected to the first mounting hole 630 through the second mounting hole 640.

[0066] Specifically, both the first mounting hole 630 and the second mounting hole 640 are threaded holes, and the second connecting member 620 is a bolt that mates with the threaded hole. Since the positioning block 400 is subject to relatively concentrated forces, the positioning block 400 is prone to breakage during use. Fixing the positioning block 400 to the mounting member 300 by threaded connection facilitates the replacement of the positioning block 400.

[0067] Specifically, when the positioning block 400 is provided with the first mounting hole 630, the back plate 610 is provided with the second mounting hole 640, and the second connecting member 620 can relatively fix the back plate 610 and the positioning block 400.

[0068] When the mounting member 300 is provided with the first mounting hole 630, the back plate 610 is provided with the second mounting hole 640, and the second connecting member 620 can relatively fix the back plate 610 and the mounting member 300.

[0069] When both the positioning block 400 and the mounting member 300 are provided with the first mounting hole 630, the back plate 610 is correspondingly provided with the second mounting hole 640, and the second connecting member 620 can fix the back plate 610, the mounting member 300, and the positioning block 400 together.

[0070] Reference Figure 2 and Figure 3 In some embodiments, a positioning assembly 700 is further included. The positioning assembly 700 includes at least one first positioning hole 710 and at least one second positioning hole 720. The first positioning hole 710 is located on the mounting member 300, and the second positioning hole 720 is located on the back plate 610. When the first positioning hole 710 and the second positioning hole 720 are opposite to each other, the second mounting hole 640 and the first mounting hole 630 are opposite to each other.

[0071] Reference Figure 2 and Figure 3 In some embodiments, the positioning assembly 700 further includes at least one positioning member 730, and the positioning member 730 is inserted into the second positioning hole 720 and the first positioning hole 710.

[0072] Specifically, the positioning member 730 is a pin shaft, and the pin shaft is inserted into the first positioning hole 710 and the second positioning hole 720 at the same time, so as to limit the mounting member 300 and the back plate 610, and reduce the situation that the mounting member 300 and the back plate 610 deviate from the axis.

[0073] Referring to Figure 3 , in some embodiments, the cross-section of the clamping groove 310 is a regular polygon.

[0074] Specifically, the cross-section of the clamping groove 310 is a regular quadrilateral. The clamping block 510 is inserted into the clamping groove 310. When the clamping block 510 rotates, it can push the wall of the clamping groove 310, so that the mounting member 300 rotates. On the one hand, setting the cross-section of the clamping groove 310 as a regular polygon can facilitate the clamping block 510 to push the inner wall of the clamping groove 310, so that the mounting member 300 follows the clamping block 510 to perform circular motion; on the other hand, the distances from all vertices of the regular polygon to this center point (axis) are equal, and this distance is the radius of the regular polygon or the radius of the circumscribed circle, so that the mounting member 300 is not easily eccentrically rotated relative to the clamping block 510.

[0075] Referring to Figure 3 , in some embodiments, the back plate 610 has an avoidance hole 611 for avoiding the first connecting member 500.

[0076] The avoidance hole 611 enables the clamping block 510 to pass through and be inserted into the clamping groove 310, so as to drive the mounting member 300 to rotate.

[0077] After considering the specification and practicing the embodiments disclosed herein, those skilled in the art will readily conceive of other embodiments of the present application. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include the common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.

[0078] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A disassembly and assembly tool for the round nut at the shaft end of a traction motor of an orbital locomotive. A stop washer (110) and a round nut (200) at the shaft end are sequentially arranged on a motor shaft end (100). At least one opening groove (210) is formed in the outer peripheral wall of the round nut (200). It is characterized in that, The disassembly and assembly tool for the round nut at the shaft head of the rail locomotive traction motor includes: A mounting member (300), which is used to cover the round nut (200) at the shaft head; At least one positioning block (400), which is arranged on the mounting member (300), and the positioning block (400) is used to be correspondingly inserted into the opening groove (210); A first connecting member (500), which is connected to the mounting member (300), and the first connecting member (500) is used to be connected with a driving member, so as to drive the round nut (200) to rotate relative to the motor shaft head (100) through the mounting member (300) and the positioning block (400) under the drive of the driving member.

2. The disassembly and assembly tool for the round nut at the shaft end of the traction motor of the rail locomotive according to claim 1, characterized in that, A clamping groove (310) is opened at the center of the mounting member (300), one end of the first connecting member (500) is provided with a clamping block (510) matching the clamping groove (310), and the other end of the first connecting member (500) is connected with a bolt head (520) matching the driving member.

3. The disassembly and assembly tooling for the round nut at the shaft head of the traction motor of the rail locomotive according to claim 1, wherein At least one mounting groove (320) is arranged on the mounting member (300), and the corresponding part of the positioning block (400) is inserted into the mounting groove (320).

4. The disassembly and assembly tooling for the round nut at the shaft head of the traction motor of the rail locomotive according to claim 3, characterized in that, The positioning block (400) includes a positioning part (410) and a plugging part (420) arranged in sequence. The positioning part (410) matches the mounting groove (320), and the positioning part (410) is inserted into the mounting groove (320), and the plugging part (420) is used to be inserted into the opening groove (210).

5. The disassembly and assembly tooling for the round nut at the shaft head of the traction motor of the rail locomotive according to any one of claims 1-4, characterized in that, It further includes a fastening assembly (600), and the fastening assembly (600) includes a back plate (610), and the back plate (610) covers the mounting member (300) and the positioning block (400) to fix the positioning block (400) on the mounting member (300).

6. The dismounting and mounting tooling for the round nut at the shaft end of the traction motor of the rail locomotive according to claim 5, wherein The fastening assembly (600) further includes a second connecting member (620). At least one of the positioning block (400) and the mounting member (300) is provided with a first mounting hole (630), and at least one second mounting hole (640) is opened on the back plate (610). The second connecting member (620) is connected to the first mounting hole (630) through the second mounting hole (640).

7. The disassembly and assembly tooling for the round nut at the shaft head of the traction motor of the rail locomotive according to claim 6, characterized in that, It further includes a positioning assembly (700), and the positioning assembly (700) includes at least one first positioning hole (710) and at least one second positioning hole (720). The first positioning hole (710) is located on the mounting member (300), and the second positioning hole (720) is located on the back plate (610). When the first positioning hole (710) and the second positioning hole (720) are opposite, the second mounting hole (640) and the first mounting hole (630) are opposite.

8. The disassembly and assembly tooling for the round nut at the shaft head of the traction motor of the rail locomotive according to claim 7, wherein, The positioning assembly (700) further includes at least one positioning member (730), and the positioning member (730) is inserted into the second positioning hole (720) and the first positioning hole (710).

9. The dismounting and mounting tool for the round nut at the shaft end of the traction motor of the rail locomotive according to claim 2, characterized in that, The cross-section of the clamping groove (310) is a regular polygon.

10. The disassembly and assembly tooling for the round nut at the shaft head of the traction motor of the rail locomotive according to claim 5, characterized in that, The back plate (610) is provided with an avoidance hole (611) for avoiding the first connecting member (500).

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