A motor oil seal dismounting device

Abstract

The application relates to the technical field of mechanical equipment, in particular to a motor oil seal dismounting device. The dismounting device comprises a device body, a positioning piece and a driving piece. The positioning piece is arranged on one side of the device body and connected with the device body. The positioning piece is provided with a positioning part on the side away from the device body, and the positioning part is configured to be connected with the oil seal of the motor. The driving piece is movably arranged on the device body, and the driving piece can move close to or away from the positioning piece when moving relative to the device body. The device body is configured to move to the side away from the positioning piece when the driving piece moves to the side close to the positioning piece, and drive the positioning piece to move simultaneously. The dismounting device can play the roles of positioning and guiding on the oil seal, and the effect of improving the maintenance efficiency is achieved.

Description

Technical Field

[0001] This application relates to the field of mechanical equipment technology, and in particular to a disassembly device for an electric motor oil seal. Background Technology

[0002] An oil seal is a sealing component used in electric motors, primarily to prevent lubricating oil leakage. It is typically installed around the motor's bearings or bushings. Removing the oil seal is a common task during locomotive maintenance.

[0003] Currently, disassembling motor oil seals usually relies on traditional motor oil seal disassembly devices. These devices consist of a device body and bolts. The device body is positioned around the motor oil seal, and the motor oil seal is pushed out by rotating the bolts.

[0004] However, traditional motor oil seal removal devices suffer from unstable positioning and guidance of the oil seals during removal, resulting in low removal efficiency and easy damage. With the increasing workload of locomotive maintenance, low removal efficiency has become a bottleneck restricting normal maintenance operations. To improve maintenance efficiency, a more efficient motor oil seal removal device is urgently needed. Utility Model Content

[0005] This application provides a disassembly device for an electric motor oil seal. This disassembly device can position and guide the oil seal, thereby improving maintenance efficiency.

[0006] In a first aspect, embodiments of this application provide a disassembly device for an electric motor oil seal, the disassembly device comprising:

[0007] device body;

[0008] A positioning element is disposed on one side of the device body and connected to the device body; the positioning element has a positioning part on the side opposite to the device body, and the positioning part is configured to connect with the oil seal of the motor.

[0009] A driving member is movably disposed on the device body, and the driving member can move closer to or further away from the positioning member when moving relative to the device body;

[0010] The device body is configured such that when the driving member moves toward the side closer to the positioning member, it can move toward the side away from the positioning member, and simultaneously move the positioning member.

[0011] This application provides a disassembly device for a motor oil seal, comprising a device body, a positioning component, and a driving component. The positioning component is installed on one side of the device body and connected to the device body. A positioning part is located on the side of the positioning component facing away from the device body, and the positioning part is connected to the motor oil seal. The positioning component, through the positioning part, achieves precise positioning and connection with the oil seal, ensuring that the oil seal will not detach from the positioning component during disassembly, thus improving the efficiency of oil seal disassembly.

[0012] The driving component is movably mounted on the device body and can move relative to the device body, thus moving closer to or away from the positioning component. When the driving component moves towards the positioning component, the device body experiences a reaction force, causing it to move away from the positioning component. Since the positioning component is connected to the oil seal, the movement of the device body will cause the positioning component to move along with it, thereby disassembling the oil seal from the motor. Through the guiding action of the device body and the driving component, the driving component can stably push the device body to move, effectively driving the positioning component to disassemble the oil seal, improving the stability of the oil seal disassembly process, and thus reducing the occurrence of oil seal damage.

[0013] Therefore, the disassembly device for motor oil seals provided in this application can achieve precise positioning and guidance during the disassembly process, thereby improving disassembly efficiency and reducing the occurrence of oil seal damage.

[0014] In some possible embodiments of this application, the drive member is configured to abut against the motor shaft of the motor when moving toward the side closer to the positioning member, so that the device body moves away from the side of the positioning member.

[0015] In some possible embodiments of this application, the device body has a first end and a second end disposed opposite to each other, and the positioning member is disposed at the first end and connected to the first end;

[0016] The second end has a mounting hole, and the drive member is movably disposed in the mounting hole. The drive member is configured to move toward the side closer to the positioning member, pass through the first end and the positioning member, and abut against the motor shaft of the motor.

[0017] In some possible embodiments of this application, the disassembly device further includes a mounting member disposed at the second end and fixed relative to the second end;

[0018] The drive element is screwed into the mounting element, and the drive element is configured to move toward or away from the positioning element when rotated relative to the mounting element.

[0019] In some possible embodiments of this application, the mounting component has a threaded hole, the circumferential outer wall of the driving component has an external thread, the external thread matches the threaded hole, and the driving component is disposed in the threaded hole.

[0020] In some possible embodiments of this application, the positioning part is a positioning hole or a positioning groove, which is configured to accommodate the oil seal.

[0021] In some possible embodiments of this application, the shape of the positioning hole matches the shape formed by the circumferential outer wall of the oil seal;

[0022] The shape of the positioning groove matches the shape formed by the circumferential outer wall of the oil seal.

[0023] In some possible embodiments of this application, the positioning element is detachably connected to the device body.

[0024] In some possible embodiments of this application, the positioning member has an assembly portion on the side facing the device body, and the device body has a mating portion on one side at a position corresponding to the assembly portion, and the assembly portion and the mating portion are detachably connected.

[0025] In some possible embodiments of this application, the device body includes a first structural member, a second structural member, and a connector, wherein the first structural member and the second structural member are respectively connected to opposite ends of the connector; the first structural member forms a first end of the device body, and the second structural member forms a second end of the device body;

[0026] The positioning element is located at the first end; the driving element is movably located at the second end. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the disassembly device for the motor oil seal provided in this application;

[0029] Figure 2 This is a schematic diagram of the disassembly device for the motor oil seal and a partial assembly of the motor oil seal provided in this application.

[0030] 100 - Device body; 110 - First end; 111 - Mating part; 120 - Second end; 121 - Mounting part; 130 - Connecting part;

[0031] 200 - Positioning component; 210 - Positioning part; 220 - Assembly part;

[0032] 300-Driver;

[0033] 400 - Motor; 410 - Oil seal; 420 - Motor shaft. Detailed Implementation

[0034] In the description of the embodiments of this application, it should be understood that the terms "comprising" and "having" as used herein, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, display structure, product, or device that includes a step or unit is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0035] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "electrical connection," etc. (if applicable) should be interpreted broadly. For example, they can refer to a fixed electrical connection, an indirect connection through an intermediate medium, or the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0036] The terms “left,” “right,” “top,” “bottom,” “inner,” “outer,” etc. (if present) in the specification and claims of this application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0038] In the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0039] Oil seals are sealing elements used in electric motors to prevent lubricating oil leakage and the entry of external contaminants into the motor. Oil seals are typically installed in the bearing housing or shaft bore of the motor, specifically at the location where the motor shaft extends out of the motor housing. In this application, the specific installation location of the oil seal is not further limited, as long as it can be removed using a motor oil seal removal device.

[0040] During locomotive maintenance, it is necessary to remove the oil seals. Currently, the commonly used method for removal usually relies on manual tools.

[0041] For example, a screwdriver or pry bar can be used to pry out the oil seal by inserting it into the gap between the oil seal and the motor shaft. This method is simple and straightforward, but it can easily damage the oil seal and the motor surface.

[0042] Secondly, common oil seal removal devices also include pullers. The puller's claws hook onto the edge of the oil seal, and the central screw of the puller is rotated to apply force for removal. However, during the removal process, the puller's positioning and guidance of the oil seal are unstable, resulting in low removal efficiency and easy damage to the oil seal.

[0043] Therefore, how to provide precise positioning and guidance for oil seal disassembly, thereby improving the efficiency of oil seal disassembly and avoiding damage to the oil seal, is a technical problem that urgently needs to be solved.

[0044] In view of this, the present application provides a disassembly device for an oil seal of a motor, comprising a device body 100, a positioning member 200, and a driving member 300. The positioning member 200 enables precise positioning of the oil seal 410 during disassembly, thereby preventing the oil seal 410 from falling off and improving disassembly efficiency. Through the guiding action of the device body 100 and the driving member 300, the driving member 300 can stably push the device body 100 to move, effectively driving the positioning member 200 to disassemble the oil seal 410, improving the stability of the disassembly process and reducing the occurrence of damage to the oil seal 410.

[0045] The disassembly device for the motor oil seal provided in this application will be further described below with reference to the accompanying drawings and embodiments.

[0046] refer to Figure 1 The present application provides a disassembly device for an electric motor oil seal, which includes a device body 100, a positioning component 200, and a driving component 300.

[0047] A positioning member 200 is located on one side of the device body 100 and connected to it. The positioning member 200 has a positioning portion 210 on the side opposite to the device body 100, which is configured to connect to the oil seal 410 of the motor 400. When disassembling the oil seal 410 of the motor 400, connecting the positioning portion 210 of the positioning member 200 to the oil seal 410 ensures a stable connection between the device body 100 and the oil seal 410. The positioning member 200 provides a positioning function for disassembling the oil seal 410.

[0048] The drive member 300 is movably disposed on the device body 100, and the drive member 300 can move closer to or further away from the positioning member 200 when moving relative to the device body 100.

[0049] The device body 100 is configured such that when the drive member 300 moves toward the side closer to the positioning member 200, it can move toward the side away from the positioning member 200 and drive the positioning member 200 to move simultaneously.

[0050] When disassembling the oil seal 410 of the motor 400, the operator drives the drive component 300, which moves relative to the device body 100 towards the positioning component 200. As the drive component 300 moves, the device body 100 moves away from the positioning component 200. Since the positioning component 200 is connected to the device body 100, the movement of the device body 100 will cause the positioning component 200 to move, thereby smoothly disassembling the oil seal 410 from the motor 400.

[0051] The device body 100 guides the movement of the drive component 300, enabling the drive component 300 to stably push the device body 100. The device body 100 effectively drives the positioning component 200 to disassemble the oil seal 410, improving the stability of the oil seal 410 disassembly process and reducing the occurrence of damage to the oil seal 410. At the same time, the force direction of the drive component 300 is controllable, reducing the risk of the disassembly device slipping due to improper force applied by the operator.

[0052] Therefore, this application provides a disassembly device for a motor oil seal, comprising a device body 100, a positioning member 200, and a driving member 300. The positioning member 200 is installed on one side of the device body 100 and connected to the device body 100. A positioning portion 210 is provided on the side of the positioning member 200 facing away from the device body 100, and the positioning portion 210 is connected to the oil seal 410 of the motor 400. The positioning member 200, through the positioning portion 210, achieves precise positioning and connection with the oil seal 410, ensuring that the oil seal 410 will not detach from the positioning member 200 during disassembly, thus improving the disassembly efficiency of the oil seal 410.

[0053] The driving component 300 is movably mounted on the device body 100. The driving component 300 can move relative to the device body 100, thus moving closer to or further away from the positioning component 200. When the driving component 300 moves towards the positioning component 200, the device body 100 receives a reaction force, causing it to move away from the positioning component 200. Since the positioning component 200 is connected to the oil seal 410, the movement of the device body 100 will cause the positioning component 200 to move as well, thereby disassembling the oil seal 410 from the motor 400. Through the guiding effect of the device body 100 and the driving component 300, the driving component 300 can stably push the device body 100 to move, effectively driving the positioning component 200 to disassemble the oil seal 410, improving the stability of the oil seal 410 disassembly process, and thus reducing the occurrence of damage to the oil seal 410.

[0054] Therefore, the disassembly device for the motor oil seal provided in this application can achieve precise positioning and guidance during the disassembly process of the oil seal 410, thereby improving the disassembly efficiency and reducing the occurrence of damage to the oil seal 410.

[0055] See Figure 2 In some embodiments of this application, the drive member 300 is configured to abut against the motor shaft 420 of the motor 400 when moving toward the side closer to the positioning member 200, so that the device body 100 moves away from the side of the positioning member 200.

[0056] For example, the oil seal 410 may be disposed on the outer periphery of the motor shaft 420 of the motor 400. An operator drives the drive member 300, causing it to move along the device body 100 toward the positioning member 200. When the drive member 300 moves to contact the motor shaft 420 of the motor 400, the operator continues to drive the drive member 300, and the device body 100 undergoes a reverse displacement under the action of the motor shaft 420.

[0057] Specifically, the device body 100 moves toward the side away from the positioning member 200. Since one side of the positioning member 200 is connected to the device body 100 and the other side is connected to the oil seal 410 through the positioning part 210, when the device body 100 moves toward the side away from the positioning member 200, the device body 100 will synchronously drive the positioning member 200 to move, and the positioning member 200 will pull the oil seal 410 to move, thereby smoothly disassembling the oil seal 410 from the motor 400.

[0058] When the drive member 300 moves along the device body 100 toward the positioning member 200, the drive member 300 contacts the motor shaft 420, and the motor shaft 420 exerts a reaction force of the same magnitude but in the opposite direction on the drive member 300. The reaction force from the motor shaft 420 pushes the device body 100 toward the direction away from the positioning member 200, and the reaction force is transmitted to the oil seal 410 through the positioning member 200, thereby smoothly disassembling the oil seal 410.

[0059] By reversing the displacement of the device body 100, the oil seal 410 can be disassembled smoothly, which improves the stability of the disassembly process of the oil seal 410 and reduces the occurrence of damage to the oil seal 410.

[0060] In some embodiments of this application, the device body 100 has a first end 110 and a second end 120 disposed opposite to each other, and the positioning member 200 is disposed at the first end 110 and connected to the first end 110.

[0061] The second end 120 has a mounting hole, and the drive member 300 is movably disposed in the mounting hole. The drive member 300 is configured to move toward the side closer to the positioning member 200, and then pass through the first end 110 and the positioning member 200 to abut against the motor shaft 420 of the motor 400.

[0062] When disassembling the oil seal 410 of the motor 400, the positioning member 200 is connected to the first end 110 of the device body 100, and the positioning part 210 of the positioning member 200 is connected to the oil seal 410 to achieve positioning. The driving member 300 passes through the mounting hole, and the operator drives the driving member 300 to move towards the positioning member 200. The driving member 300 passes through the first end 110 and abuts against the motor shaft 420 of the motor 400. The operator continues to drive the driving member 300, but the driving member 300 can no longer move. The motor shaft 420 generates a reaction force, which pushes the device body 100 to move away from the positioning member 200. Furthermore, the reaction force is transmitted to the oil seal 410 through the positioning member 200, thereby smoothly disassembling the oil seal 410.

[0063] The drive member 300 is movably disposed in the mounting hole, allowing the drive member 300 to move between the first end 110 and the second end 120. The device body 100 provides guidance for the movement of the drive member 300, preventing the disassembly device from slipping due to improper force applied by the operator.

[0064] In some embodiments of this application, the disassembly device further includes a mounting member 121, which is disposed at and fixed relative to the second end 120. A drive member 300 is screwed into the mounting member 121 and is configured to move toward or away from the positioning member 200 when rotated relative to the mounting member 121.

[0065] When disassembling the oil seal 410 of the motor 400, the drive component 300 is screwed into the mounting component 121. The operator rotates the drive component 300, causing it to move linearly relative to the device body 100 toward the positioning component 200. The drive component 300 passes through the first end 110 and abuts against the motor shaft 420 of the motor 400. At this time, the drive component 300, the motor shaft 420, and the motor 400 are all immobile.

[0066] The operator continues to rotate the drive component 300 in the same direction. The drive component 300 abuts against the motor shaft 420 of the motor 400, and the motor shaft 420 generates a reaction force. This reaction force acts on the mounting component 121, causing the mounting component 121 to move away from the positioning component 200. Since the mounting component 121 is mounted on the second end 120, which is part of the device body 100, the mounting component 121 will drive the entire device body 100 to move away from the positioning component 200. This allows the oil seal 410 to be smoothly disassembled.

[0067] Mounting component 121 connects to drive component 300, providing support for drive component 300 and ensuring precise, controllable, and smooth movement of drive component 300. This avoids damage to oil seal 410 and increases operator safety.

[0068] In some embodiments of this application, the mounting member 121 has a threaded hole, and the circumferential outer wall of the driving member 300 has an external thread that matches the threaded hole. The driving member 300 is disposed in the threaded hole.

[0069] For example, the drive component 300 can be a screw, and the mounting component 121 can be a nut or a threaded sleeve. When the operator rotates the screw, the external thread on the screw moves along the thread inside the nut or sleeve. The operator's rotational torque is converted into linear tension, and the device body 100 can directly disassemble the oil seal 410, achieving a labor-saving effect, thereby reducing the operator's labor intensity and improving work efficiency.

[0070] For example, the side of the second end 120 opposite to the mounting member 121 may also have a support plate and bolts, with the support plate connected to the second end 120 by bolts. The support plate also has threaded holes corresponding to the mounting holes of the mounting member 121. The drive member 300 passes through the threaded holes of the mounting member 121, then through the mounting holes of the second end 120, and finally through the mounting holes of the support plate. The support plate enhances the support force on the drive member 300, making the movement of the drive member 300 precise, controllable, and smooth, thereby ensuring the stability of the disassembly process.

[0071] In some embodiments of this application, the positioning part 210 is a positioning hole or positioning groove, which is configured to accommodate the oil seal 410.

[0072] For example, when the positioning part 210 is a positioning hole, the positioning hole can be interference-fitted with the oil seal 410 and connected by friction. When the positioning part 210 is a positioning groove, the positioning groove can engage with the oil seal 410 to form a mechanical interlock. The oil seal 410 is connected to the device body 100 through the positioning part 210. When the device body 100 moves, it can move the oil seal 410, thereby smoothly disassembling the oil seal 410.

[0073] The positioning holes or positioning grooves enable the oil seal 410 to achieve a stable connection with the device body 100, ensuring the smoothness and continuity of the oil seal 410 disassembly process, thereby increasing the success rate of operation and improving work efficiency.

[0074] In some embodiments of this application, the shape of the positioning hole matches the shape formed by the circumferential outer wall of the oil seal 410. The shape of the positioning groove matches the shape formed by the circumferential outer wall of the oil seal 410. By matching the shape of the positioning hole or positioning groove with the shape formed by the circumferential outer wall of the oil seal 410, the oil seal 410 is subjected to uniform force and maintains a tight connection with the positioning part 210, preventing damage to the oil seal 410 or loosening of the connection between the oil seal 410 and the positioning part 210 during disassembly, which would reduce the continuity of oil seal 410 disassembly and thus reduce work efficiency.

[0075] In some embodiments of this application, the positioning element 200 is detachably connected to the device body 100. The size or shape of the oil seal 410 of different motor models 400 is typically different. By detachably connecting the positioning element 200 to the device body 100, different specifications of the positioning element 200 can be replaced, allowing the disassembly device to be adapted to disassemble the oil seal 410 of various different motor models 400, greatly improving the versatility, flexibility, and economy of the disassembly device.

[0076] Meanwhile, the positioning component 200 is in direct contact with the oil seal 410, making it prone to wear. By detachably connecting it to the device body 100, the positioning component 200 can be easily cleaned, repaired, or replaced, thus eliminating the need to replace or disassemble the entire device and further reducing costs.

[0077] In some embodiments of this application, the positioning member 200 has an assembly portion 220 on the side facing the device body 100, and the device body 100 has a mating portion 111 on the side corresponding to the assembly portion 220. The assembly portion 220 and the mating portion 111 are detachably connected.

[0078] For example, one of the assembly part 220 and the mating part 111 can be a mounting groove, and the other can be a protrusion. The assembly part 220 and the mating part 111 are connected by a plug-in connection. Alternatively, one of the assembly part 220 and the mating part 111 can be a snap-fit, and the other a slot. The assembly part 220 and the mating part 111 are connected by a snap-fit. Another option is that one of the assembly part 220 and the mating part 111 can be a sleeve structure with external threads, and the other a threaded hole. The assembly part 220 and the mating part 111 are connected by a threaded engagement.

[0079] For example, the positioning element 200 can be a flange, and the side of the flange facing the device body 100 has an assembly portion 220, which is a sleeve structure with external threads. The first end 110 of the device body has a threaded hole, and the assembly portion 220 of the flange can mate with the threaded hole, so that the positioning element 200 is connected to the device body.

[0080] By using the assembly part 220 and the mating part 111, the connection accuracy can be improved while ensuring the rigidity of the connection between the positioning part 200 and the main body of the device, thus ensuring a smooth and efficient disassembly process.

[0081] In some embodiments of this application, the device body 100 includes a first structural member, a second structural member, and a connector 130. The first and second structural members are respectively connected to opposite ends of the connector 130. The first structural member forms a first end 110 of the device body 100, and the second structural member forms a second end 120 of the device body 100. A positioning member 200 is disposed at the first end 110. A driving member 300 is movably disposed at the second end 120.

[0082] See Figure 1 For example, the first end 110 and the second end 120 can be a first flange and a second flange, respectively, and the connecting member 130 can be a screw. The first flange has a threaded hole corresponding to the screw, and the second flange has a through hole corresponding to the screw. One end of the bolt passes through the threaded hole and is threadedly connected to the first flange, and the other end passes through the through hole and is fixedly connected by a nut, thereby ensuring the integrity of the disassembly device, providing sufficient support for the disassembly of the oil seal 410, and ensuring a smooth and efficient disassembly process.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A disassembly device for an electric motor oil seal, characterized in that, include: Device body (100); A positioning element (200) is provided on one side of the device body (100) and connected to the device body (100); the positioning element (200) has a positioning part (210) on the side opposite to the device body (100), and the positioning part (210) is configured to be connected to the oil seal (410) of the motor (400). A drive member (300) is movably disposed on the device body (100), and the drive member (300) can move closer to or further away from the positioning member (200) when moving relative to the device body (100). The device body (100) is configured to move away from the positioning member (200) when the drive member (300) moves toward the side closer to the positioning member (200), and drive the positioning member (200) to move simultaneously.

2. The disassembly device according to claim 1, characterized in that, The drive member (300) is configured to abut against the motor shaft (420) of the motor (400) when moving toward the side closer to the positioning member (200), so that the device body (100) moves away from the positioning member (200).

3. The disassembly device according to claim 2, characterized in that, The device body (100) has a first end (110) and a second end (120) disposed opposite to each other, and the positioning member (200) is disposed at the first end (110) and connected to the first end (110); The second end (120) has a mounting hole, and the drive member (300) is movably disposed in the mounting hole. The drive member (300) is configured to move toward the side closer to the positioning member (200) and abut against the motor shaft (420) of the motor (400) through the first end (110) and the positioning member (200).

4. The disassembly device according to claim 3, characterized in that, It also includes a mounting component (121), which is disposed at the second end (120) and fixed relative to the second end (120); The drive member (300) is screwed into the mounting member (121), and the drive member (300) is configured to move toward or away from the positioning member (200) when rotated relative to the mounting member (121).

5. The disassembly device according to claim 4, characterized in that, The mounting component (121) has a threaded hole, and the drive component (300) has an external thread on its circumferential outer wall. The external thread matches the threaded hole, and the drive component (300) is located inside the threaded hole.

6. The disassembly device according to claim 1, characterized in that, The positioning part (210) is a positioning hole or positioning groove, which is configured to accommodate the oil seal (410).

7. The disassembly device according to claim 6, characterized in that, The shape of the positioning hole matches the shape formed by the circumferential outer wall of the oil seal (410); The shape of the positioning groove matches the shape formed by the circumferential outer wall of the oil seal (410).

8. The disassembly device according to any one of claims 1-7, characterized in that, The positioning element (200) is detachably connected to the device body (100).

9. The disassembly device according to claim 8, characterized in that, The positioning member (200) has an assembly part (220) on the side facing the device body (100), and the device body (100) has a mating part (111) on one side corresponding to the assembly part (220). The assembly part (220) and the mating part (111) are detachably connected.

10. The disassembly device according to any one of claims 1-7, characterized in that, The device body (100) includes a first structural member, a second structural member, and a connector (130). The first structural member and the second structural member are respectively connected to opposite ends of the connector (130). The first structural member forms a first end (110) of the device body (100), and the second structural member forms a second end (120) of the device body (100). The positioning member (200) is located at the first end (110); the driving member (300) is movably located at the second end (120).

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