Assembly motor end cover dismounting tool

By designing an assembly motor end cover disassembly fixture consisting of an end cover connecting plate, a lead screw module, and a support module, the problem of end cover damage and rotor bearing damage during the disassembly of the new energy vehicle assembly motor was solved, achieving labor-saving and efficient disassembly.

CN224503180UActive Publication Date: 2026-07-14ZHUHAI DASHING INTELLIGENT EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI DASHING INTELLIGENT EQUIPMENT CO LTD
Filing Date
2025-06-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing technologies, during the disassembly process of the motor assembly of new energy vehicles, the end cap is easily damaged and scrapped, the rotor bearing is damaged, and the disassembly efficiency is low, making it difficult to effectively protect the materials.

Method used

Design a motor end cover disassembly fixture comprising an end cover connecting plate, a lead screw module, and a support module. Utilize the rotational engagement of the lead screw and lead screw nut and the force-bearing support seat of the support module to press down on the rotor bearing through the support module. Combined with the force-bearing contact between the hemispherical pressure head and the conical surface, friction is reduced, achieving stable disassembly.

Benefits of technology

This design protects the motor end cover and rotor bearing, preventing damage, improving disassembly efficiency, and reducing the physical exertion of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembly motor end cover dismounting frock, aims at providing a simple structure, and the dismounting process is more laborsaving, and the assembly motor end cover dismounting frock of material protection to motor end cover and rotor bearing can be provided. The utility model discloses including end cover connecting plate, screw rod module and support module, the screw rod module includes screw rod and screw rod nut, the screw rod nut sets up on the end cover connecting plate upper end, the screw rod with screw rod nut rotation cooperation, the support module sets up the end cover connecting plate lower extreme, the screw rod drives the support module lower pressure end and the external motor end cover cooperation. The utility model discloses is applied to the technical field of dismounting frock.
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Description

Technical Field

[0001] This utility model applies to the technical field of disassembly fixtures, and particularly relates to a disassembly fixture for an assembly motor end cover. Background Technology

[0002] When a new energy vehicle's powertrain motor malfunctions during production line assembly, it needs to be transported to a rework area for disassembly to allow for the recycling of some parts and to obtain fault analysis results. Current technology involves direct disassembly using simple tools such as pry bars and rubber mallets. Manually striking the bottom edge of the motor end cover with a rubber mallet and using a pry bar to separate the end cover from the housing easily damages and renders the end cover unusable. The rotor bearing is connected to the bearing housing in the end cover; during disassembly, the tilted disassembly of the end cover can damage and render the rotor bearing unusable. Furthermore, the high viscosity of the sealant at the joint between the end cover and the housing makes disassembly difficult, leading to worker fatigue and low efficiency. If a simple, labor-saving disassembly fixture could be designed to protect the motor end cover and rotor bearing materials, these problems could be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an assembly motor end cover disassembly tooling that is simple in structure, easier to disassemble, and can protect the motor end cover and rotor bearing materials.

[0004] The technical solution adopted by this utility model is as follows: This utility model includes an end cover connecting plate, a lead screw module, and a support module. The lead screw module includes a lead screw and a lead screw nut. The lead screw nut is disposed on the upper end of the end cover connecting plate. The lead screw and the lead screw nut are rotatably engaged. The support module is disposed on the lower end of the end cover connecting plate. The lead screw drives the lower end of the support module to cooperate with an external motor.

[0005] Furthermore, the support module includes a guide sleeve and a force-bearing support seat. The guide sleeve is disposed in the middle of the lower end face of the end cover connecting plate. The outer side of the force-bearing support seat cooperates with the inner side of the guide sleeve, and the lower end of the force-bearing support seat cooperates with the end of the external motor bearing.

[0006] Furthermore, a pressing hole is provided in the middle of the end cap connecting plate, and the screw pressing end cooperates with the support end of the force-bearing support seat through the pressing hole.

[0007] Furthermore, a positioning platform is provided at the upper end of the force-bearing support base, and the outer edge of the positioning platform cooperates with the pressing hole.

[0008] Furthermore, the lead screw pressing end is provided with a hemispherical pressure head, and the positioning table support end is provided with a rotating groove, the hemispherical pressure head cooperating with the rotating groove.

[0009] Furthermore, the lead screw drive end is provided with a rotating handle.

[0010] Furthermore, the end cover connecting plate is connected to the fixed end of the external motor end cover housing by a number of locking screws.

[0011] Furthermore, the lead screw nut and the guide sleeve are respectively connected to the middle of the upper and lower ends of the end cover connecting plate by a number of fixing screws.

[0012] The beneficial effects of this utility model are as follows: by pressing the rotor bearing with the force-bearing support, the bearing will not be pulled out with the motor end cover during disassembly; the quick-tightening screw connects the tooling body and the motor end cover, eliminating the need for tools and wrenches, thus improving efficiency; the force-bearing support is fitted on the outer circle of the rotor shaft, and the tooling body is fitted on the outer circle of the force-bearing support, ensuring that the disassembly of the motor end cover is not affected by the magnetic pull of the rotor, guaranteeing that the bearing hole of the motor end cover is concentric with the rotor, and that the motor end cover does not tilt with the housing; the hemispherical design at the front end of the lead screw and the conical hole design on the inner hole of the force-bearing support surface ensure that the spherical surface and the conical surface are in force contact when disassembling and rotating the lead screw, reducing friction and reducing the physical exertion of the operator. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention;

[0014] Figure 2 This is a three-dimensional view of the present invention from another perspective;

[0015] Figure 3 This is an exploded view of the present invention;

[0016] Figure 4 This is a perspective view of the load-bearing support.

[0017] Figure 5 This is a perspective view of the lead screw;

[0018] Figure 6 This is a cross-sectional view of the present application in conjunction with an external assembly motor. Detailed Implementation

[0019] like Figures 1 to 6As shown, in this embodiment, the present invention includes an end cover connecting plate 1, a lead screw module 2, and a support module 3. The lead screw module 2 includes a lead screw 21 and a lead screw nut 22. The lead screw nut 22 is disposed on the upper end of the end cover connecting plate 1, and the lead screw 21 and the lead screw nut 22 are rotatably engaged. The support module 3 is disposed on the lower end of the end cover connecting plate 1, and the lead screw 21 drives the support module 3 to press down and engage with an external motor. Therefore, by using the relative rotation and pressing down of the lead screw 21 and the lead screw nut 22 instead of the traditional direct pressing method, the downward pressure is more stable and less strenuous. By using the support module 3 to press down on the rotor bearing of the external assembly motor, the bearing is not pulled out with the motor end cover during disassembly, achieving the effect of only disassembling the assembly motor end cover.

[0020] like Figure 2 and Figure 6 As shown, in this embodiment, the support module 3 includes a guide sleeve 31 and a force-bearing support seat 32. The guide sleeve 31 is disposed in the middle of the lower end face of the end cover connecting plate 1. The outer side of the force-bearing support seat 32 cooperates with the inner side of the guide sleeve 31, and the lower end of the force-bearing support seat 32 cooperates with the outer end of the external motor bearing. Therefore, the force-bearing support seat 32 is fitted onto the outer circle of the external assembly motor rotor shaft, and the tooling body is fitted onto the outer circle of the force-bearing support seat. This ensures that the disassembly of the motor end cover is not affected by the magnetic pull of the rotor, guaranteeing that the bearing hole of the motor end cover is concentric with the rotor and that the motor end cover does not tilt with the housing.

[0021] like Figure 3 As shown, in this embodiment, a pressing hole 4 is provided in the middle of the end cap connecting plate 1. The pressing end of the lead screw 21 cooperates with the supporting end of the force-bearing support seat 32 through the pressing hole 4. Therefore, through the pressing hole 4, the lead screw 21 can pass through the end cap connecting plate 1 and cooperate with the force-bearing support seat 32, allowing the force-bearing support seat 32 and the end cap connecting plate 1 to move back and forth, thereby achieving the effect of opening the end cap.

[0022] like Figure 3 and Figure 4 As shown, in this embodiment, a positioning platform 33 is provided at the upper end of the force-bearing support 32, and the outer edge of the positioning platform 33 cooperates with the pressing hole 4. Therefore, the positioning platform 33 can limit the movement of the pressing hole 4, allowing the force-bearing support 32 to connect more stably with the end cap connecting plate 1, preventing displacement during the docking process.

[0023] like Figures 4 to 6As shown, in this embodiment, the pressing end of the lead screw 21 is provided with a hemispherical pressure head 23, and the supporting end of the positioning platform 33 is provided with a rotating groove 34. The hemispherical pressure head 23 cooperates with the rotating groove 34. Therefore, the hemispherical design at the front end of the lead screw 21 and the conical hole design on the inner surface of the positioning platform 33 ensure that when disassembling and rotating the lead screw, the spherical surface and the conical surface are in force contact, reducing friction and minimizing the physical exertion on the operator.

[0024] like Figure 1 As shown, in this embodiment, the drive end of the lead screw 21 is provided with a rotating handle 24. Therefore, rotating the rotating handle 24 enables relative movement between the lead screw 21 and the lead screw nut 22, thereby achieving synchronous rising or falling of the lead screw 21 and the force-bearing support 32.

[0025] like Figure 3 and Figure 6 As shown, in this embodiment, the end cover connecting plate 1 is connected to the fixed end of the external motor end cover housing by a plurality of locking screws 5. Therefore, connecting the end cover connecting plate 1 to the external motor end cover using the plurality of locking screws 5 eliminates the need for tools or wrenches, thus improving efficiency.

[0026] like Figure 3 As shown, in this embodiment, the lead screw nut 22 and the guide sleeve 31 are respectively connected to the middle of the upper and lower ends of the end cover connecting plate 1 by a plurality of fixing screws 6. Therefore, the plurality of fixing screws 6 stably fix the lead screw nut 22 and the guide sleeve 31 to the upper and lower ends of the end cover connecting plate 1, preventing displacement or detachment during disassembly.

[0027] The working principle of this utility model is as follows: Before starting the equipment, the screw 21 is rotated to the high position by the rotating handle 24, and the force support seat 32 is placed on the inner surface of the rotor bearing 8 in the external assembly motor 7. The inner hole of the force support seat 32 is fitted onto the rotor shaft drive shaft 9. At the same time, the end cover connecting plate 1 is placed on the end cover surface of the external assembly motor 7. The guide sleeve 31 is inserted into the outer circle of the force support seat 32. The end cover connecting plate 1 is connected to the screw hole of the end cover of the external assembly motor 7 by several locking screws 5 to complete the assembly. Then, the rotating handle 24 is rotated, and the screw 21 descends under the relative action with the screw nut 22, pushing the force support seat 32 down, so that the end cover connecting plate 1 separates the end cover of the external assembly motor 7.

[0028] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. A tooling for disassembling an assembly motor end cover, comprising an end cover connecting plate (1), a lead screw module (2), and a support module (3), characterized in that: The lead screw module (2) includes a lead screw (21) and a lead screw nut (22). The lead screw nut (22) is located on the upper end of the end cover connecting plate (1). The lead screw (21) and the lead screw nut (22) are rotatably engaged. The support module (3) is located on the lower end of the end cover connecting plate (1). The lead screw (21) drives the support module (3) to press down and engage with an external motor.

2. The assembly motor end cover disassembly fixture according to claim 1, characterized in that: The support module (3) includes a guide sleeve (31) and a force support seat (32). The guide sleeve (31) is located in the middle of the lower end face of the end cover connecting plate (1). The outer side of the force support seat (32) cooperates with the inner side of the guide sleeve (31). The lower end of the force support seat (32) cooperates with the end of the external motor bearing.

3. The assembly motor end cover disassembly fixture according to claim 2, characterized in that: The end cap connecting plate (1) is provided with a pressing hole (4) in the middle. The pressing end of the screw (21) cooperates with the supporting end of the force support seat (32) through the pressing hole (4).

4. The assembly motor end cover disassembly fixture according to claim 3, characterized in that: The upper end of the force-bearing support base (32) is provided with a positioning platform (33), and the outer edge of the positioning platform (33) cooperates with the pressing hole (4).

5. The assembly motor end cover disassembly fixture according to claim 4, characterized in that: The screw (21) is provided with a hemispherical pressure head (23) at the pressing end, and the positioning table (33) is provided with a rotating groove (34) at the supporting end. The hemispherical pressure head (23) cooperates with the rotating groove (34).

6. The assembly motor end cover disassembly fixture according to claim 1, characterized in that: The lead screw (21) is equipped with a rotating handle (24) at its driving end.

7. The assembly motor end cover disassembly fixture according to claim 1, characterized in that: The end cover connecting plate (1) is connected to the fixed end of the outer motor end cover shell by a number of locking screws (5).

8. The assembly motor end cover disassembly fixture according to claim 2, characterized in that: The lead screw nut (22) and the guide sleeve (31) are respectively connected to the middle of the upper and lower ends of the end cover connecting plate (1) by a number of fixing screws (6).