Disassembling tool

Abstract

The utility model discloses a dismounting tool for dismounting the bearing assembled on the main shaft, comprising: a hollow shell; a bearing abutting mechanism, comprising length adjusting spare and bearing positioning assembly, wherein, length adjusting spare swing joint hollow shell, to make length adjusting spare can be close to or away from bearing, bearing positioning assembly sets up on length adjusting spare, is used for the direction of hollow shell and is in contact with bearing; main shaft pushing mechanism, including screw rod and lifting drive assembly, wherein, screw rod all or part penetrates hollow shell, and one end of screw rod is used for in contact with the end of main shaft, and the fixed part of lifting drive assembly is connected with hollow shell, and the drive part of lifting drive assembly is engaged with screw rod and is connected, to drive screw rod close to or away from main shaft, the dismounting tool of the application can be used to dismount the bearing from the main shaft, and will not cause damage to the main shaft and the main shaft bearing, and can improve the efficiency of dismounting the bearing from the main shaft.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts disassembly and assembly technology, and in particular to a disassembly tool. Background Technology

[0002] Bearings are important mechanical equipment components that support the rotation or sliding of mechanical parts, reduce the coefficient of friction during the movement of mechanical parts, and ensure their rotational accuracy. Currently, the most common way to remove bearings from the spindle is by manual disassembly. Workers use a sledgehammer to repeatedly hammer the bearing, causing it to slowly move relative to the spindle until it gradually detaches from the spindle. Obviously, this disassembly method can easily cause great damage to the spindle and its components, and may even render the spindle unusable. Utility Model Content

[0003] This invention proposes a disassembly fixture to improve bearing disassembly efficiency while reducing spindle damage.

[0004] This application provides a disassembly fixture for disassembling bearings assembled on a spindle, including:

[0005] Hollow shell;

[0006] A bearing abutment mechanism includes a length adjusting member and a bearing positioning assembly; wherein, the length adjusting member is movably connected to the hollow housing so that the length adjusting member can approach or move away from the bearing; the bearing positioning assembly is disposed on the length adjusting member and is used to abut against the bearing in the direction toward the hollow housing;

[0007] A spindle pushing mechanism includes a threaded rod and a lifting drive assembly; wherein the threaded rod penetrates the hollow housing in whole or in part, and one end of the threaded rod is used to abut against the end of the spindle; the fixed part of the lifting drive assembly is connected to the hollow housing, and the driving part of the lifting drive assembly is engaged with the threaded rod to drive the threaded rod closer to or away from the spindle.

[0008] In some embodiments, the outer peripheral surface of the length adjuster engages with the inner surface of the hollow housing, so that the length adjuster can be driven to change the engagement depth between the length adjuster and the hollow housing.

[0009] In some embodiments, the length adjusting member has a through-hole in the middle so that the main shaft and the bearing can extend into the length adjusting member;

[0010] The bearing positioning assembly includes a plurality of rotating abutments, which are arranged around the end of the length adjusting member to fix or release the bearing by rotating the rotating abutments.

[0011] In some embodiments, the bearing positioning assembly further includes components corresponding one-to-one with the rotating abutments, the number of the fittings and the rotating abutments corresponding, one end of the fitting engaging with the end of the length adjusting member, and the other end of the fitting rotatably connected to the rotating abutment.

[0012] In some embodiments, the fittings are evenly spaced and arranged around the end of the length adjuster.

[0013] In some embodiments, the drive portion of the lifting drive assembly includes a turbine, which is movably disposed inside the hollow housing and engages with the threaded rod, so that the lifting drive assembly drives the threaded rod to move via the turbine.

[0014] In some embodiments,

[0015] The lifting drive assembly also includes a rotating rod, a driven bevel gear, a driving bevel gear, and a lifting drive component;

[0016] One end of the rotating rod is rotatably connected to the hollow housing along the axial direction of the threaded rod; the other end of the rotating rod is connected to the turbine through the driven bevel gear; the driving bevel gear meshes with the driven bevel gear; the lifting drive is disposed on the outer periphery of the hollow housing, and one end of the lifting drive is connected to the driving bevel gear.

[0017] In some embodiments, the lifting drive includes a drive motor having an output shaft that extends into the interior of the hollow housing and is connected to the drive bevel gear transmission.

[0018] Alternatively, the lifting drive component includes a transmission rod and a lever, with one end of the transmission rod extending into the interior of the hollow housing and being connected to the drive bevel gear, and the lever being connected to the other end of the transmission rod.

[0019] In some embodiments, the transmission rod and the drive bevel gear are integrally formed.

[0020] In some embodiments, the hollow housing has a disassembly cavity, a power cavity, and a narrow opening connecting the disassembly cavity and the power cavity;

[0021] The hollow shell is also provided with a through hole on its side that connects to the power cavity;

[0022] The transmission rod extends into the power chamber through the through hole;

[0023] The length adjustment component is disposed within the disassembly cavity;

[0024] The outlet of the power chamber is connected to a sealing plate;

[0025] One end of the threaded rod is connected to the disassembly cavity, and the other end is connected to the power cavity;

[0026] The two ends of the rotating rod are respectively connected to the wall of the narrow opening edge and the sealing plate.

[0027] This application proposes a disassembly fixture, which has the following advantages compared with the prior art:

[0028] The hollow housing can accommodate the spindle and its bearings. A length adjustment component is movably connected to the hollow housing, allowing it to move closer to or further away from the bearing. A bearing positioning component is mounted on the length adjustment component, allowing it to contact the bearing towards the hollow housing. A threaded rod penetrates the hollow housing in whole or in part, with one end contacting the end of the spindle. The fixed part of the lifting drive component is connected to the hollow housing, and the driving part of the lifting drive component engages with the threaded rod. The lifting drive component can drive the threaded rod closer to or further away from the spindle, creating a push against the end of the spindle. Simultaneously, the bearing positioning component contacts the bearing in the opposite direction to the spindle's movement, causing the spindle to move relative to the bearing, ultimately separating them and allowing the bearing to be removed from the spindle. This disassembly fixture eliminates the need for workers to use a sledgehammer to strike the spindle, preventing damage and ensuring the spindle can be put into use later. It also improves the efficiency of removing the bearing from the spindle. The length adjustment component can be adjusted relative to the hollow housing to accommodate different spindle and bearing sizes. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a disassembly fixture for assembling a spindle according to an embodiment of the present utility model;

[0030] Figure 2 for Figure 1 A schematic diagram of the disassembly fixture shown;

[0031] Figure 3 for Figure 2 The diagram shows the fit between the bearing contact mechanism and the hollow housing.

[0032] Figure 4 for Figure 3 The schematic diagram of the bearing positioning assembly shown is shown below;

[0033] Figure 5 for Figure 2 The schematic diagram of the main shaft pushing mechanism shown is shown below;

[0034] Figure 6 for Figure 1 The disassembly tooling shown is shown in an internal cross-sectional view.

[0035] The meanings of the reference numerals in the attached figures are as follows:

[0036] 1. Hollow shell; 11. Disassembly cavity; 12. Power cavity; 13. Narrow opening; 14. Through hole; 15. Sealing plate; 2. Bearing abutment mechanism; 21. Length adjustment component; 22. Bearing positioning assembly; 221. Rotating abutment component; 222. Assembly component; 3. Main shaft pushing mechanism; 31. Threaded rod; 32. Lifting drive assembly; 321. Turbine; 322. Rotating rod; 323. Driven bevel gear; 324. Driven bevel gear; 325. Transmission rod; 326. Actuating lever; 10. Main shaft; 20. Bearing. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, up, down, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0039] like Figures 1-6 As shown in the illustration, this application embodiment proposes a disassembly fixture for disassembling the bearing 20 assembled on the spindle 10, including a hollow housing 1, a bearing abutment mechanism 2, and a spindle pushing mechanism 3; the bearing abutment mechanism 2 includes a length adjusting member 21 and a bearing positioning assembly 22, wherein the length adjusting member 21 is movably connected to the hollow housing 1 so that the length adjusting member 21 can approach or move away from the bearing 20, and the bearing positioning assembly 22 is disposed on the length adjusting member 21 for abutting the bearing 20 in the direction toward the hollow housing 1; the spindle pushing mechanism 3 includes a threaded rod 31 and a lifting drive assembly 32, wherein the threaded rod 31 penetrates the hollow housing 1 in whole or in part, and one end of the threaded rod 31 is used to abut the end of the spindle 10, the fixed part of the lifting drive assembly 32 is connected to the hollow housing 1, and the driving part of the lifting drive assembly 32 is engaged with the threaded rod 31 to drive the threaded rod 31 to approach or move away from the spindle 10.

[0040] Based on the above technical solution, the hollow housing 1 can accommodate the main shaft 10 and its bearing 20; the length adjusting member 21 is movably connected to the hollow housing 1, and the length adjusting member 21 can move closer to or further away from the bearing 20; the bearing positioning component 22 is disposed on the length adjusting member 21, and the bearing positioning component 22 can abut against the bearing 20 in the direction of the hollow housing 1; the threaded rod 31 penetrates the hollow housing 1 in whole or in part, and one end of the threaded rod 31 is used to abut against the end of the main shaft 10; the fixed part of the lifting drive component 32 is connected to the hollow housing 1, and the driving part of the lifting drive component 32 is engaged with the threaded rod 31, so that the lifting drive component 32 can drive the threaded rod. 31 moves closer to or further away from the spindle 10, creating a push on the end of the spindle 10. At the same time, the bearing positioning assembly 22 forms a resistance against the bearing 20 in the opposite direction of the spindle 10's movement. Thus, the spindle 10 moves relative to the bearing 20, and eventually the two separate, achieving the removal of the bearing 20 from the spindle 10. The disassembly fixture of this application can eliminate the need for workers to use a sledgehammer to strike the spindle 10, preventing damage to the spindle 10 and ensuring that the spindle 10 can be put into use later. It can also improve the efficiency of removing the bearing 20 from the spindle 10. The length adjustment component 21 can be moved and adjusted relative to the hollow housing 1 to adapt to different specifications of spindle 10 and bearing 20 sizes.

[0041] The bearing positioning assembly 22 of this application can abut against the bearing 20, and the threaded rod 31 can abut against the end of the main shaft 10. The lifting drive assembly 32 can drive the threaded rod 31 to rotate, so that the threaded rod 31 moves in the axial direction of the hollow housing 1 to push the main shaft 10 and generate a large force, which can push the main shaft 10 to move relative to the bearing 20 and separate the main shaft 10 and the bearing 20. It can also be adapted to various specifications of main shaft 10 and various bearings 20 sleeved on the outer periphery of the main shaft 10. Moreover, when the threaded rod 31 rotates one revolution, the amount of axial movement of the threaded rod 31 in the hollow housing 1 is very small, so that the main shaft 10 will not move too violently relative to the bearing 20 at once, causing damage to the bearing 20.

[0042] Different specifications of spindle 10 will have different distances between the bearing 20 sleeved on its outer periphery and the end face of the spindle 10. This application can adapt to different distances between the end face of the spindle 10 and the bearing 20: This application movably connects the length adjustment member 21 to the inside of the hollow housing 1. The length adjustment member 21 can be axially adjusted relative to the hollow housing 1 so that the length adjustment member 21 can adjust the position of the bearing positioning assembly 22 relative to the hollow housing 1, so that the bearing positioning assembly 22 can abut against the bearing 20 on the spindle 10. At the same time, the lifting drive assembly 32 can drive the threaded rod 31 to move axially in the hollow housing 1 so as to abut against the end of the spindle 10 and push the spindle 10 to separate the spindle 10 and the bearing 20.

[0043] In some embodiments, the length adjusting member 21 can be configured to rotate and adjust its position relative to the hollow housing 1; for example, the outer peripheral surface of the length adjusting member 21 can be configured to engage with the inner surface of the hollow housing 1 so that the length adjusting member 21 can be driven to change the engagement depth with the hollow housing 1, thereby adjusting the position of the length adjusting member 21 relative to the hollow housing 1, that is, adjusting the position of the bearing positioning assembly 22 relative to the hollow housing 1.

[0044] Optionally, an external thread is provided on the outer peripheral surface of the length adjusting member 21, and an internal thread is provided on the inner surface of the hollow housing 1. The external thread of the length adjusting member 21 and the internal thread of the hollow housing 1 are engaged. In this way, the position of the length adjusting member 21 can be adjusted relative to the hollow housing 1 simply by driving the length adjusting member 21 to rotate, which is very convenient and quick. Furthermore, the length adjusting member 21 and the hollow housing 1 can form a self-locking structure in the axial direction, eliminating the need for an additional self-locking structure, which simplifies the structure of this disassembly tool to a certain extent.

[0045] Furthermore, the length adjustment component 21 is driven to rotate one revolution, and the length adjustment component 21 moves a relatively small stroke along the axial direction of the hollow housing 1; in this way, the position of the length adjustment component 21 can be finely adjusted, that is, the position of the bearing positioning component 22 can be finely adjusted relative to the hollow housing 1 to adapt to the distance between the end face of the spindle 10 and the bearing 20.

[0046] On-site workers can use tools to drive the length adjusting component 21 to rotate; or, a device that can drive the length adjusting component 21 to rotate can be installed on the hollow shell 1 to achieve automatic rotation of the length adjusting component 21. This device can refer to the common structure in the prior art, and its technical details will not be described in detail here.

[0047] In some embodiments, the length adjusting member 21 is configured to slide relative to the hollow housing 1. For example, a groove extending axially (not shown in the accompanying drawings) is provided inside the hollow housing 1, and a portion of the outer periphery of the length adjusting member 21 is slidably connected to the groove, which can drive the length adjusting member 21 to slide within the hollow housing 1, thereby adjusting the position of the bearing 20 positioning member to match the distance between the end face of the spindle 10 and the bearing 20. Fasteners are provided on the hollow housing 1, and after the position of the length adjusting member 21 is adjusted, the length adjusting member 21 and the hollow housing 1 are locked and fixed to fix the position of the bearing positioning assembly 22, so as to prevent the bearing positioning assembly 22 from shifting when disassembling the bearing 20 on the spindle 10, thus affecting the disassembly work.

[0048] Fasteners can be installed using structures known in the prior art, and their technical details will not be described in detail here.

[0049] Alternatively, on-site workers can use tools to drive the length adjusting member 21 to slide relative to the hollow shell 1, or a drive mechanism can be set on the hollow shell 1 to drive the length adjusting member 21 to slide axially relative to the hollow shell 1. The drive mechanism can refer to common structures in the prior art, and its technical details will not be described in detail here.

[0050] The length adjusting member 21 is through the middle, and the main shaft 10 and the bearing 20 on its end extend into the length adjusting member 21; the bearing positioning assembly 22 includes a plurality of rotating abutment members 221, which are arranged around the end of the length adjusting member 21 and are movable and adjustable.

[0051] The position of each rotating abutment 221 on the length adjusting member 21 can be adjusted so that it can abut against the bearing 20 on the main shaft 10 in all directions, reducing the damage to the bearing 20 due to uneven force.

[0052] The disassembly fixture of this application can adjust the distance between the length adjusting member 21 and the hollow housing 1 to match the axial mating distance between the spindle 10 and the bearing 20. It can also adjust the position of the multiple rotating abutment members 221 arranged around the length adjusting member 21 to match the radial dimensions of different spindles 10, thus having a wider range of applications.

[0053] In some embodiments, each rotating abutment 221 is independently driven to rotate to adjust its position on the length adjusting member 21. Each rotating abutment 221 can be switched between two positions by rotation: one position for fixing the bearing 20 and the other position for releasing the bearing 20. By rotating the rotating abutment 221, the distance between the rotating abutment 221 and the length adjusting member 21 can also be adjusted to accommodate bearings 20 of different sizes.

[0054] The bearing positioning assembly 22 also includes multiple fittings 222, which correspond in number to the rotating abutment 221. One end of the fitting 222 engages with the end of the length adjusting member 21, and the rotating abutment 221 is rotatably disposed at the other end of the fitting 222.

[0055] The rotating abutment 221 has an abutment portion and a rotating portion, with the rotating portion rotatably connected to the assembly 222. On-site workers rotate each rotating abutment 221 according to the dimensions of the main shaft 10 from which the bearing 20 is to be disassembled, so that the abutment portion of each rotating abutment 221 can approach the outer periphery of the main shaft 10 to contact the bearing 20 on the outer periphery of the main shaft 10. At this time, the lifting drive assembly 32 drives the threaded rod 31 to move axially in the hollow housing 1. The threaded rod 31 can push against the main shaft 10, causing the main shaft 10 to move axially in the hollow housing 1. The bearing 20, constrained by the rotating abutment 221, will not move axially in the hollow housing 1. As the lifting drive assembly 32 continues to drive, the threaded rod 31 continuously pushes against the main shaft 10, gradually pushing the main shaft 10 out of the hollow housing 1 to separate it from the bearing 20.

[0056] The rotating abutment 221 and the bearing 20 form an abutment in the axial direction of the hollow housing 1. The assembly 222 and the length adjusting member 21 can form a self-locking mechanism in the axial direction of the hollow housing 1 to prevent the rotating abutment 221 from moving under the drive of the bearing 20. At this time, the rotating abutment 221 and the assembly 222 can be restricted in the circumferential direction by friction alone. On-site workers can use tools or drive the rotating abutment 221 to rotate relative to the assembly 222 to adjust its position, so as to quickly move the abutting part of the rotating abutment 221 closer to or away from the outer circumferential surface of the main shaft 10, so as to contact the bearing 20 or not contact the bearing 20.

[0057] As a preferred method, the assemblies 222 are evenly spaced and arranged around the end of the length adjusting member 21 to ensure that the bearing 20 is subjected to uniform force and to prevent the bearing 20 from being damaged.

[0058] In some embodiments, each rotating abutment 221 can be driven to rotate simultaneously to synchronously adjust its position on the length adjusting member 21.

[0059] Optionally, the rotating parts of two adjacent rotating abutment parts 221 are engaged. On-site workers can use tools to drive one of the rotating abutment parts 221 to rotate, thereby simultaneously driving the other rotating abutment parts 221 to rotate, so that the abutting parts of these rotating abutment parts 221 simultaneously approach or move away from the outer peripheral surface of the main shaft 10. With this configuration, the abutting parts of the rotating abutment parts 221 can be quickly engaged or disengaged from the bearings 20 on the main shaft 10, which can speed up the disassembly process to a certain extent.

[0060] Specifically, gears can be coaxially arranged on the rotating portion of the rotating abutment 221 so that the gears of two adjacent rotating abutment 221 mesh, or meshing portions can be provided on the rotating portion of the rotating abutment 221 so that the meshing portions of two adjacent rotating abutment 221 mesh; thereby, these rotating abutment 221 can be driven to rotate synchronously.

[0061] In some embodiments, the driving part of the lifting drive assembly 32 includes a turbine 321, which is movably disposed inside the hollow housing 1 and engages with the threaded rod 31. The lifting drive assembly 32 can drive the turbine 321 to rotate so as to drive the threaded rod 31 to move inside the hollow housing 1.

[0062] The lifting drive assembly 32 also includes a rotating rod 322, a driven bevel gear 323, a driving bevel gear 324, and a lifting drive. The rotating rod 322 is rotatably disposed inside the hollow housing 1 and is parallel to the threaded rod 31. The turbine 321 and the driven bevel gear 323 are both disposed on the outer periphery of the rotating rod 322. The driving bevel gear 324 and the driven bevel gear 323 are meshed together. The lifting drive is disposed on the outer periphery of the hollow housing 1. The power end of the lifting drive extends into the interior of the hollow housing 1 and is connected to the driving bevel gear 324 in a transmission manner.

[0063] The lifting drive can drive the active bevel gear 324 to rotate, which in turn drives the driven bevel gear 323 to rotate, thereby driving the rotating rod 322 and the turbine 321 to rotate synchronously, and finally driving the threaded rod 31 to move, so as to push the end of the main shaft 10 that extends into the length adjusting member 21.

[0064] Optionally, the lifting drive includes a drive motor (not shown in the figures), the drive motor having an output shaft that extends into the interior of the hollow housing 1 and is connected to the drive bevel gear 324.

[0065] Alternatively, the lifting drive includes a transmission rod 325 and a lever 326. One end of the transmission rod 325 extends into the interior of the hollow housing 1 and is connected to the driving bevel gear 324. The lever 326 is connected to the other end of the transmission rod 325. On-site workers can rotate the lever 326 to drive the transmission rod 325 to rotate, thereby driving the driving bevel gear 324, the driven bevel gear 323, the rotating rod 322, and the turbine 321 to rotate synchronously, ultimately driving the threaded rod 31 to rotate.

[0066] When disassembling the bearing 20 on the spindle 10, the disassembly tool of this application can place the spindle 10 vertically to avoid the spindle 10 shifting due to gravity. Under normal circumstances, the hollow housing 1 stands upright on the worktable, and the spindle 10 is pushed upward in the vertical direction out of the hollow housing 1.

[0067] The lever 326 is located on one side of the hollow shell 1. On-site workers can manually operate the workbench to turn the lever 326 to generate force. Through the drive bevel gear 324 and the driven bevel gear 323, the threaded rod 31 is ultimately driven to move in the vertical direction. Here, the two bevel gears can change the direction of power transmission, enabling the threaded rod 31 to move in the vertical direction. This also makes it convenient for on-site workers to exert force and manually drive the lever 326 to rotate, thereby driving the threaded rod 31 to rotate.

[0068] As a preferred embodiment, the transmission rod 325 and the driving bevel gear 324 are integrally formed, and / or the rotating rod 322 and the driven bevel gear 323 are integrally formed, and / or the rotating rod 322, the driven bevel gear 323 and the turbine 321 are integrally formed, in order to reduce the assembly tolerances therebetween and prevent wear due to loose assembly.

[0069] In some embodiments, the space inside the hollow housing 1 is planned to accommodate components such as the threaded rod 31, turbine 321, rotating rod 322, driven bevel gear 323, driving bevel gear 324, and transmission rod 325, and to ensure that power can be transmitted inside the hollow housing 1. The hollow housing 1 has a disassembly cavity 11, a power cavity 12, and a narrow opening 13 connecting the disassembly cavity 11 and the power cavity 12. The side of the hollow housing 1 is also provided with a through hole 14 connecting the power cavity 12. The transmission rod 325 extends into the power cavity 12 through the through hole 14. The length adjustment member 21 is provided in the disassembly cavity 11. The outlet of the power cavity 12 is connected to a sealing plate 15. One end of the threaded rod 31 is connected to the disassembly cavity 11, and the other end is connected to the power cavity 12. The two ends of the rotating rod 322 are respectively connected to the wall of the narrow opening 13 and the sealing plate 15.

[0070] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0071] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0072] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A disassembly fixture for disassembling bearings assembled on a spindle, characterized in that, include: Hollow shell; A bearing abutment mechanism includes a length adjusting member and a bearing positioning assembly; wherein, the length adjusting member is movably connected to the hollow housing so that the length adjusting member can approach or move away from the bearing; the bearing positioning assembly is disposed on the length adjusting member and is used to abut against the bearing in the direction toward the hollow housing; A spindle pushing mechanism includes a threaded rod and a lifting drive assembly; wherein the threaded rod penetrates the hollow housing in whole or in part, and one end of the threaded rod is used to abut against the end of the spindle; the fixed part of the lifting drive assembly is connected to the hollow housing, and the driving part of the lifting drive assembly is engaged with the threaded rod to drive the threaded rod closer to or away from the spindle.

2. The disassembly fixture according to claim 1, characterized in that, The outer peripheral surface of the length adjusting member engages with the inner surface of the hollow shell, so that the length adjusting member can be driven to change the engagement depth between the length adjusting member and the hollow shell.

3. The disassembly fixture according to claim 2, characterized in that, The length adjusting member has a through-hole in the middle so that the main shaft and the bearing can extend into the length adjusting member; The bearing positioning assembly includes multiple rotating abutments arranged around the end of the length adjusting member to fix or release the bearing by rotating the rotating abutments.

4. The disassembly fixture according to claim 3, characterized in that, The bearing positioning assembly also includes a fitting that corresponds to each of the rotating abutment members. One end of the fitting engages with the end of the length adjusting member, and the other end of the fitting is rotatably connected to the rotating abutment member.

5. The disassembly fixture according to claim 4, characterized in that, The components are evenly spaced and arranged around the end of the length adjusting member.

6. The disassembly fixture according to claim 1, characterized in that, The drive unit of the lifting drive assembly includes a turbine, which is movably disposed inside the hollow housing and meshes with the threaded rod, so that the lifting drive assembly drives the threaded rod to move through the turbine.

7. The disassembly fixture according to claim 6, characterized in that, The lifting drive assembly also includes a rotating rod, a driven bevel gear, a driving bevel gear, and a lifting drive component; One end of the rotating rod is rotatably connected to the hollow housing along the axial direction of the threaded rod; the other end of the rotating rod is connected to the turbine through the driven bevel gear; the driving bevel gear meshes with the driven bevel gear; the lifting drive is disposed on the outer periphery of the hollow housing, and one end of the lifting drive is connected to the driving bevel gear.

8. The disassembly fixture according to claim 7, characterized in that, The lifting drive component includes a transmission rod and a lever. One end of the transmission rod extends into the interior of the hollow housing and is connected to the drive bevel gear. The lever is connected to the other end of the transmission rod.

9. The disassembly fixture according to claim 8, characterized in that, The transmission rod and the drive bevel gear are integrally formed.

10. The disassembly fixture according to claim 8, characterized in that, The hollow shell has a disassembly cavity, a power cavity, and a narrow opening connecting the disassembly cavity and the power cavity; The hollow shell is also provided with a through hole on its side that connects to the power cavity; The transmission rod extends into the power chamber through the through hole; The length adjustment component is disposed within the disassembly cavity; The outlet of the power chamber is connected to a sealing plate; One end of the threaded rod is connected to the disassembly cavity, and the other end is connected to the power cavity; The two ends of the rotating rod are respectively connected to the wall of the narrow opening edge and the sealing plate.

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