Tool for disassembling bearing

Abstract

The utility model relates to the technical field of bearing disassembly, and discloses a bearing disassembly tool which comprises a base body, a supporting plate arranged with the base body in a spaced mode and a driving piece arranged on the base body and acting on the end portion of a shaft, the base body can drive the supporting plate to move under the action of the driving piece, the supporting plate is provided with a center hole and two extrusion rods, and the two extrusion rods are arranged in the center hole. The extrusion rods are slidably connected to the supporting plate in the direction close to or away from the center of the supporting plate, so that when the tool is used, the two extrusion rods can be kept in a vertical state, the situation that the extrusion rods are separated from the bearing is avoided, the bearing disassembling difficulty is lowered, and meanwhile the bearing disassembling efficiency is improved; besides, the situation that the bearing needs to be beaten is avoided, so that the situation that the shaft is damaged due to deflection of the bearing is avoided, and the service life of the shaft is further guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of bearing disassembly, and specifically relates to a tool for bearing disassembly. Background Art

[0002] Bearings are a crucial component in modern mechanical equipment. Their primary function is to support rotating bodies, reduce friction during movement, and ensure rotational accuracy. Bearings have a limited service life and, to maintain their support for rotating bodies, they need to be replaced.

[0003] At present, there are two common ways to disassemble bearings. One is to knock the bearing so that the bearing moves along the axial direction of the shaft under the action of the knocking force. However, in the process of knocking the bearing, the force applied to the bearing will cause the bearing to deflect, which may damage the shaft and affect the service life of the shaft; the other is to use a three-jaw puller to disassemble the bearing. Since the claws are hinged to the body of the three-jaw puller, the claws are easily separated from the bearing when the bearing is disassembled. Therefore, when the bearing is disassembled, the staff needs to hold the claws by hand to avoid the claws from being easily separated from the bearing, which increases the difficulty of disassembling the bearing. Utility Model Content

[0004] The present application provides a tool for disassembling a bearing to reduce damage to the shaft when disassembling the bearing and reduce the difficulty of disassembling the bearing.

[0005] The technical solutions adopted in this application are:

[0006] A tool for bearing disassembly includes a base, a support plate spaced apart from the base, and a driving member provided on the base and acting on the end of a shaft. The base can drive the support plate to move under the action of the driving member. The support plate is provided with a center hole. The support plate is provided with two extrusion rods, and the extrusion rods are slidably connected to the support plate in a direction approaching or away from the center of the support plate.

[0007] By adopting the above technical solution, when disassembling the bearing, the tooling is first installed to the outside of the shaft so that the support plate moves through the center hole to the side of the bearing facing away from the base, and then the extrusion rod is slid, and then the two extrusion rods are moved in a direction close to the center of the support plate, so that the two extrusion rods both contact the side of the bearing facing away from the base, and then the driving member is operated so that the base drives the support plate toward the outside of the shaft under the action of the driving member, so that the support plate drives the extrusion rod to move toward the outside of the shaft, and then the bearing moves toward the outside of the shaft under the action of the extrusion rod, and finally the bearing is separated from the shaft.

[0008] Since the extrusion rods are slidably connected to the support plate, the two extrusion rods can be kept in an upright state when the tooling is used to avoid separation of the extrusion rods from the bearings, thereby reducing the difficulty of disassembling the bearings and improving the efficiency of disassembling the bearings. In addition, the need to knock the bearings is avoided, thereby avoiding damage to the shaft caused by bearing deflection, thereby ensuring the service life of the shaft.

[0009] Optionally, the extrusion rod is located on a side of the support plate facing the base.

[0010] By adopting the above technical solution, since the extrusion rod is located on the side of the support plate facing the base, the support plate can support the extrusion rod to increase the stability of the extrusion rod, thereby ensuring that the extrusion rod can apply force to the bearing, and at the same time ensuring the stability of the connection between the extrusion rod and the support plate, thereby increasing the service life of the tooling.

[0011] Optionally, both ends of the extrusion rod are provided with connecting parts, and the connecting parts abut against a side of the support plate facing away from the base.

[0012] By adopting the above technical solution, since the connecting part contacts the side of the support plate facing away from the base, a sliding connection between the extrusion rod and the support plate is achieved, thereby increasing the connection stability between the extrusion rod and the support plate while ensuring that the extrusion rod can slide relative to the support plate.

[0013] Optionally, an elastic member is provided between the two extrusion rods, and the elastic member is used to apply a force to the two extrusion rods in a direction of moving them closer to each other.

[0014] By adopting the above technical solution, since the elastic member is used to apply a force in the direction of approaching the two extrusion rods, and then the two extrusion rods are in contact with the bearing, the two extrusion rods can maintain the state of contact with the bearing under the action of the elastic member, so as to increase the contact stability between the extrusion rods and the bearing, and further avoid the situation where the staff needs to apply a force in the direction of approaching the extrusion rods during the disassembly of the bearing, thereby further reducing the difficulty of disassembling the bearing and further improving the efficiency of disassembling the bearing.

[0015] Optionally, the base is provided with a connecting rod passing through the support plate, the connecting rod is threadedly connected to an adjusting nut, and the adjusting nut is located on a side of the support plate away from the base.

[0016] By adopting the above technical solution, since the adjusting nut is located on the side of the support plate away from the base body, and the connecting rod passes through the support plate, the adjusting nut can support the support plate, thereby increasing the stability of the support plate. At the same time, the distance between the support plate and the base body can be adjusted, so that the tooling can disassemble bearings at different positions, thereby increasing the flexibility of the tooling.

[0017] Optionally, the driving member includes a driving rod threadedly connected to the base body and a contact portion provided at one end of the driving rod close to the support plate, and the radial cross-sectional area of the contact portion is larger than the radial cross-sectional area of the driving rod.

[0018] By adopting the above technical solution, after the tooling is installed on the shaft and the extrusion rod abuts against the side of the bearing away from the base body, the contact portion abuts against the end of the shaft. Then, the driving rod is rotated, and the driving rod rotates relative to the end of the shaft. Subsequently, the base body drives the support plate to move towards the outside of the shaft, so that the extrusion rod drives the bearing to move towards the outside of the shaft, and finally the bearing is separated from the shaft. During this process, only the driving rod needs to be rotated, thereby further reducing the difficulty of disassembling the bearing. At the same time, since the radial cross-sectional area of the contact is larger than the radial cross-sectional area of the driving rod, the contact area between the driving member and the end of the shaft is increased, thereby further avoiding the situation that the shaft may be damaged when the bearing is disassembled, and ensuring the service life of the shaft.

[0019] Optionally, the contact portion is provided with a receiving cavity, and the end of the driving rod is located in the receiving cavity so that the driving rod can rotate relative to the contact portion.

[0020] By adopting the above technical solution, since the end of the driving rod is located in the receiving cavity, the driving rod can rotate relative to the contact portion. Thus, when the driving rod drives the base body to move, the contact portion can remain relatively stationary with respect to the end of the shaft, so as to avoid the situation of friction between the contact portion and the end of the shaft due to the relative rotation of the contact portion and the end of the shaft, thereby reducing the damage to the shaft and further ensuring the service life of the shaft.

[0021] Optionally, the contact portion is provided with a magnetic member capable of magnetically connecting with the end of the shaft.

[0022] By adopting the above technical solution, after the tooling is installed on the shaft, the magnetic member is magnetically connected to the end of the shaft to increase the connection stability between the tooling and the shaft, thereby avoiding the situation of skew between the tooling and the shaft, and further ensuring the effect of facilitating the removal of the bearing.

[0023] Optionally, an operating rod is provided at one end of the driving rod away from the support plate, and the operating rod is arranged perpendicular to the driving rod.

[0024] By adopting the above technical solution, since the operating rod is arranged perpendicular to the driving rod, the driving rod can be easily rotated, thereby improving the rotation efficiency of the driving rod and further improving the disassembly efficiency of the bearing.

[0025] Optionally, the driving member is any one of a pneumatic cylinder, an electric push rod or a hydraulic cylinder.

[0026] By adopting the above technical solution, since the driving part is any one of a pneumatic cylinder, an electric push rod or a hydraulic cylinder, the base can be automatically driven to reduce the workload of the staff, and at the same time, the efficiency of bearing disassembly can be further improved to further improve the staff's user experience.

[0027] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0028] 1. The tooling in the present application includes a base, a support plate spaced apart from the base, and a driving member provided on the base and acting on the end of the shaft. The base can drive the support plate to move under the action of the driving member. The support plate is provided with a center hole. The support plate is provided with two extrusion rods. The extrusion rods are slidably connected to the support plate in a direction close to or away from the center of the support plate. When the tooling is used, the two extrusion rods can be kept in an upright state to avoid separation of the extrusion rods from the bearings, thereby reducing the difficulty of disassembling the bearings and improving the efficiency of disassembling the bearings. In addition, the need to knock the bearings is avoided, thereby avoiding the damage to the shaft caused by bearing deflection, thereby ensuring the service life of the shaft.

[0029] 2. The extrusion rod in this application is located on the side of the support plate facing the base, so that the support plate can support the extrusion rod to increase the stability of the extrusion rod, thereby ensuring that the extrusion rod can apply force to the bearing, and at the same time ensure the stability of the connection between the extrusion rod and the support plate to increase the service life of the tooling.

[0030] 3. Both ends of the extrusion rod in this application are provided with connecting parts, which abut against the side of the support plate facing away from the base, thereby realizing a sliding connection between the extrusion rod and the support plate, thereby ensuring that the extrusion rod can slide relative to the support plate while increasing the connection stability between the extrusion rod and the support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 This is a schematic structural diagram of the tooling described in one embodiment of the present application;

[0033] Figure 2 Another perspective structural schematic diagram of the tooling under an embodiment of the present application;

[0034] Figure 3 Connection structural schematic diagram of the extrusion rod and the support plate under an embodiment of the present application;

[0035] Figure 4 Another perspective structural schematic diagram of the tooling under an embodiment of the present application.

[0036] Reference numerals:

[0037] 1. Base; 11. Connecting rod; 111. Adjusting nut; 2. Support plate; 21. Central hole; 3. Driving member; 31. Driving rod; 311. Operating rod; 32. Contact part; 4. Extrusion rod; 41. Connecting part; 411. Extension column; 5. Elastic member. Detailed implementation manners

[0038] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the drawings of the specification.

[0039] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.

[0040] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application 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 thus should not be construed as a limitation to the present application.

[0041] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0043] Reference Figures 1 to 4 , discloses a tool for bearing disassembly, including a base 1, a support plate 2 spaced apart from the base 1, and a driving member 3 provided on the base 1 and acting on the end of the shaft. The base 1 can drive the support plate 2 to move under the action of the driving member 3. The support plate 2 is provided with a center hole 21. The support plate 2 is provided with two extrusion rods 4. The extrusion rods 4 are slidably connected to the support plate 2 along a direction approaching or away from the center of the support plate 2.

[0044] When disassembling the bearing, first install the tooling to the outside of the shaft so that the support plate 2 moves through the center hole 21 to the side of the bearing facing away from the base 1, and then slide the extrusion rod 4, and then make the two extrusion rods 4 move in the direction close to the center of the support plate 2, so that the two extrusion rods 4 both contact the side of the bearing facing away from the base 1, and then operate the driving member 3 so that the base 1 drives the support plate 2 toward the outside of the shaft under the action of the driving member 3, so that the support plate 2 drives the extrusion rod 4 toward the outside of the shaft, and then the bearing moves toward the outside of the shaft under the action of the extrusion rod 4, and finally the bearing is separated from the shaft.

[0045] Since the extrusion rod 4 is slidably connected to the support plate 2, the two extrusion rods 4 can be kept in an upright state when the tooling is used to avoid the extrusion rod 4 from separating from the bearing, thereby reducing the difficulty of disassembling the bearing and improving the efficiency of disassembling the bearing; in addition, the need to knock the bearing is avoided, thereby avoiding the damage to the shaft caused by bearing deflection, thereby ensuring the service life of the shaft.

[0046] It should be noted that the cross section of the extrusion rod 4 perpendicular to its own length direction is square, so as to ensure the contact area between the extrusion rod 4 and the bearing, thereby ensuring the disassembly efficiency of the bearing.

[0047] The present application does not make any specific limitation on the relative positions of the extrusion rod 4 and the support plate 2. Preferably, refer to Figure 1 、 Figure 2 and Figure 4, the extrusion rod 4 is located on the side of the support plate 2 facing the base body 1, so that the support plate 2 can support the extrusion rod 4, thereby increasing the stability of the extrusion rod 4, ensuring that the extrusion rod 4 can apply force to the bearing, and at the same time ensuring the connection stability between the extrusion rod 4 and the support plate 2, so as to increase the service life of the tooling.

[0048] This application does not specifically limit the sliding connection method between the extrusion rod 4 and the support plate 2. Preferably, referring to Figure 1 , Figure 2 and Figure 4 , connection parts 41 are arranged at both ends of the extrusion rod 4, and the connection parts 41 abut against the side of the support plate 2 facing away from the base body 1.

[0049] Specifically, the connection part 41 is a rod-shaped structure in an L shape, thereby realizing the sliding connection between the extrusion rod 4 and the support plate 2, and while ensuring that the extrusion rod 4 can slide relative to the support plate 2, increasing the connection stability between the extrusion rod 4 and the support plate 2.

[0050] Preferably, referring to Figure 1 , Figure 2 and Figure 4 , connection parts 41 are arranged at both ends of the extrusion rod 4 to increase the connection points between the extrusion rod 4 and the support plate 2, thereby increasing the stability of the extrusion rod 4.

[0051] In other embodiments, a chute is provided on the support plate 2, and a slider slidably connected to the chute is provided on the extrusion rod 4 to realize the sliding connection between the extrusion rod 4 and the support plate 2.

[0052] In other embodiments, the extrusion rod 4 can also be located on the side of the support plate 2 facing away from the base body 1.

[0053] In a preferred embodiment, referring to Figure 1 , Figure 2 and Figure 3 , an elastic member 5 is provided between the two extrusion rods 4, and the elastic member 5 is used to apply a force in the direction of mutual approach to the two extrusion rods 4.

[0054] Since the elastic member 5 is used to apply a force in the direction of mutual approach to the two extrusion rods 4, after the two extrusion rods 4 abut against the bearing, the two extrusion rods 4 can maintain the state of abutting against the bearing under the action of the elastic member 5, so as to increase the abutting stability between the extrusion rod 4 and the bearing, further avoiding the situation that the operator needs to apply a force in the direction of mutual approach to the extrusion rod 4 during the process of disassembling the bearing, thereby further reducing the difficulty of disassembling the bearing and at the same time further improving the efficiency of disassembling the bearing.

[0055] Preferably, each connecting portion 41 is provided with an extension column 411 extending outward, and both ends of the elastic member 5 are respectively connected to two connecting columns located on the same side of the support plate 2, so as to facilitate the replacement and installation of the elastic member 5.

[0056] The present application does not make any specific limitation on the structure of the elastic member 5. Preferably, refer to Figure 1 、 Figure 2 and Figure 3 The elastic member 5 is a ring-shaped elastic rope, which is looped around the two extension posts 411 to apply an elastic force to the two extension posts 411 in a direction toward each other. In other embodiments, the elastic member 5 can also be a tension spring or other structure capable of applying an elastic force to the two extension posts 411 in a direction toward each other.

[0057] The present application does not specifically limit the connection method between the base 1 and the support plate 2, and any one of the following embodiments may be adopted:

[0058] Implementation method 1: In this implementation method, refer to Figure 1 and Figure 4 The base 1 is provided with a connecting rod 11 that passes through the support plate 2. The connecting rod 11 is threadedly connected with an adjusting nut 111. The adjusting nut 111 is located on the side of the support plate 2 away from the base 1.

[0059] Since the adjusting nut 111 is located on the side of the support plate 2 away from the base 1, and the connecting rod 11 is passed through the support plate 2, the adjusting nut 111 can support the support plate 2 to increase the stability of the support plate 2, and at the same time, the distance between the support plate 2 and the base 1 can be adjusted, so that the tooling can disassemble the bearings in different positions to increase the flexibility of the tooling.

[0060] It is understandable that a plurality of connecting rods 11 are provided along the circumference of the base 1 to increase the connection points between the support plate 2 and the base 1 , thereby increasing the connection stability between the support plate 2 and the base 1 .

[0061] Embodiment 2: In this embodiment, the base 1 is provided with a connecting rod 11, and the support plate 2 is fixedly connected to the end of the connecting rod 11 away from the base 1, that is, the distance between the support plate 2 and the base 1 cannot be changed.

[0062] The present application does not specifically limit the structure of the driving member 3, and it can adopt any one of the following embodiments:

[0063] Implementation method 1: In this implementation method, refer to Figure 1 and Figure 4The driving member 3 includes a driving rod 31 threadedly connected to the base 1 and a contact portion 32 provided at one end of the driving rod 31 close to the support plate 2, and the radial cross-sectional area of the contact portion 32 is larger than the radial cross-sectional area of the driving rod 31.

[0064] After the tooling is installed on the shaft and the extrusion rod 4 contacts the side of the bearing facing away from the base 1, the contact portion 32 contacts the end of the shaft, and then the drive rod 31 is rotated. The drive rod 31 and the end of the shaft rotate relative to each other, and then the base 1 drives the support plate 2 to move toward the outside of the shaft, so that the extrusion rod 4 drives the bearing to move toward the outside of the shaft, and finally the bearing is separated from the shaft. In this process, only the drive rod 31 needs to be rotated, thereby further reducing the difficulty of disassembling the bearing. At the same time, because the radial cross-sectional area of the contact portion 32 is larger than the radial cross-sectional area of the drive rod 31, the contact area between the drive member 3 and the end of the shaft is increased, thereby reducing the pressure between the drive member 3 and the end of the shaft, thereby further avoiding the possibility of damage to the shaft when the bearing is disassembled, thereby ensuring the service life of the shaft.

[0065] Preferably, the contact portion 32 is a block structure to simplify the structure of the contact portion 32 .

[0066] The present application does not specifically limit the connection method between the drive rod 31 and the contact portion 32. Preferably, the contact portion 32 is provided with a receiving cavity, and the end of the drive rod 31 is located in the receiving cavity so that the drive rod 31 can rotate relative to the contact portion 32, so that when the drive rod 31 drives the base 1 to move, the contact portion 32 can remain relatively stationary with the end of the shaft to avoid friction on the end of the shaft due to the relative rotation of the contact portion 32 and the end of the shaft, thereby reducing damage to the shaft and further ensuring the service life of the shaft. In other embodiments, the contact portion 32 can also be fixedly connected to the drive rod 31.

[0067] Furthermore, the contact portion 32 is provided with a magnetic member that can be magnetically connected to the end of the shaft.

[0068] Specifically, after the tooling is installed on the shaft, the magnetic part is magnetically connected to the end of the shaft to increase the connection stability between the tooling and the shaft, thereby avoiding the occurrence of deflection between the tooling and the shaft, and ensuring the effect of facilitating the removal of the bearing.

[0069] The present application does not specifically limit the structure of the magnetic member. Preferably, the magnetic member is a magnet provided on the contact portion 32 to reduce the production cost of the tooling. In other embodiments, the magnetic member can also be an electromagnet to further increase the stability of the connection between the contact portion 32 and the end of the shaft.

[0070] Further, refer to Figure 1 and Figure 4, at one end of the driving rod 31 away from the support plate 2, an operating rod 311 is provided. The operating rod 311 is arranged perpendicular to the driving rod 31, so as to facilitate the rotation of the driving rod 31, improve the rotation efficiency of the driving rod 31, and further improve the disassembly efficiency of the bearing.

[0071] Preferably, a through hole is provided at the end of the driving rod 31 away from the support plate 2, and the operating rod 311 passes through the through hole, so that the position of the operating rod 311 and the driving rod 31 can be relatively adjusted, further improving the effect of facilitating the rotation of the driving rod 31 by the staff, and further improving the disassembly efficiency of the bearing.

[0072] Embodiment 2: In this embodiment, the driving member 3 is any one of a cylinder, an electric push rod or a hydraulic cylinder, so as to realize the automatic driving of the base body 1, reduce the workload of the staff, and at the same time further improve the disassembly efficiency of the bearing, so as to further improve the use experience of the staff.

[0073] Specifically, the cylinder body of the cylinder, the electric push rod or the hydraulic cylinder is connected to the base body 1, and the piston rod passes through the base body 1, so that when the bearing is disassembled, the piston rod abuts against the end of the shaft.

[0074] What is not described in this application can be realized by adopting or referring to the existing technology.

[0075] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and the key point of each embodiment is to illustrate the differences from other embodiments.

[0076] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A tooling for bearing disassembly, characterized in that, The invention comprises a base (1), a support plate (2) spaced apart from the base (1), and a driving member (3) provided on the base (1) and acting on the end of the shaft. The base (1) can drive the support plate (2) to move under the action of the driving member (3). The support plate (2) is provided with a central hole (21). The support plate (2) is provided with two extrusion rods (4). The extrusion rods (4) are slidably connected to the support plate (2) in a direction approaching or moving away from the center of the support plate (2).

2. The bearing disassembly tooling according to claim 1, wherein, The extrusion rod (4) is located on the side of the support plate (2) facing the base (1).

3. The tool for bearing disassembly according to claim 2, wherein Both ends of the extrusion rod (4) are provided with connecting portions (41), and the connecting portions (41) abut against the side of the support plate (2) facing away from the base (1).

4. The tool for bearing disassembly according to claim 1, characterized in that, An elastic member (5) is provided between the two extrusion rods (4), and the elastic member (5) is used to apply a force in a direction of approaching each other to the two extrusion rods (4).

5. The tool for bearing disassembly according to claim 1, characterized in that, The base (1) is provided with a connecting rod (11) passing through the support plate (2); the connecting rod (11) is threadedly connected to an adjusting nut (111); the adjusting nut (111) is located on a side of the support plate (2) facing away from the base (1).

6. The fixture for bearing disassembly according to claim 1, wherein, The driving member (3) comprises a driving rod (31) threadedly connected to the base (1) and a contact portion (32) provided at one end of the driving rod (31) close to the support plate (2), wherein the radial cross-sectional area of the contact portion (32) is larger than the radial cross-sectional area of the driving rod (31).

7. The tooling for bearing disassembly according to claim 6, characterized in that, The contact portion (32) is provided with an accommodating cavity, and the end of the driving rod (31) is located in the accommodating cavity, so that the driving rod (31) can rotate relative to the contact portion (32).

8. The fixture for bearing disassembly according to claim 6, characterized in that, The contact portion (32) is provided with a magnetic member capable of being magnetically connected to the end of the shaft.

9. The tool for bearing disassembly according to claim 6, wherein, An operating rod (311) is provided at one end of the driving rod (31) away from the supporting plate (2), and the operating rod (311) is arranged perpendicular to the driving rod (31).

10. The fixture for bearing disassembly according to claim 1, wherein, The driving member (3) is any one of an air cylinder, an electric push rod or a hydraulic cylinder.

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