Bearing inner hole dismounting tool and using method
By designing the rotary feed mechanism and tripod support limit mechanism of the bearing inner hole disassembly tool, the problems of retainer damage and equipment damage during bearing disassembly are solved, the stability and efficiency of bearing disassembly are achieved, and the difficulty and intensity of maintenance are reduced.
Patent Information
- Application Number
- CN202510821793.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-19
- Publication Date
- 2025-09-19
AI Technical Summary
During the existing bearing disassembly process, the retainer is damaged, causing the balls to fall out, making it difficult to remove the bearing outer ring. In addition, the traditional disassembly method is prone to damage the bearing hole, increasing the difficulty of maintenance and the workload of equipment disassembly, affecting maintenance efficiency.
A bearing inner hole disassembly tool is designed, which includes a rotary feed mechanism and a tripod support and limit mechanism. The linear feed motion of the threaded rod is realized through a threaded connection. The tripod and the adjustment rod are combined to tighten the inner raceway of the bearing outer ring, providing a stable support point to ensure the accuracy and reliability of disassembly.
It improves the stability and operability of bearing disassembly, reduces the difficulty of operation for workers, avoids secondary damage to equipment, improves maintenance efficiency and reduces labor intensity.
Smart Images
Figure CN120663260A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of equipment maintenance, and in particular to a bearing inner hole disassembly tool and a use method thereof. Background Art
[0002] Bearings are used in many transmission devices. As wear parts, bearings are inevitably susceptible to damage. Therefore, bearing removal is essential for equipment maintenance and replacement. However, the current bearing removal process presents numerous challenges.
[0003] In actual maintenance, when a bearing is damaged, its retaining cage may break, causing the balls to fall out, which makes it more difficult to remove the outer ring of the bearing from the bearing hole. Commonly used disassembly methods such as hammering and gas cutting can easily damage the inner surface of the bearing hole. This requires the bearing hole to be corrected before the bearing is reinstalled, which consumes a lot of time and energy. Moreover, sometimes when repairing equipment, originally undamaged bearings will become scrap after such rough disassembly methods. In addition, in some cases, in order to remove a bearing, the equipment needs to be disassembled to a large extent, which not only increases the labor intensity of the maintenance workers, but also seriously affects the maintenance efficiency. Therefore, it is urgent to develop a tool that can solve the above problems and optimize the bearing disassembly process. Summary of the Invention
[0004] The purpose of the present invention is to provide a bearing inner hole disassembly tool and a method of use to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to use, effectively improves maintenance efficiency, effectively reduces labor intensity, and avoids secondary damage to the equipment during the bearing disassembly process.
[0005] To achieve the above object, the present invention provides the following solutions:
[0006] The present invention provides a bearing inner hole disassembly tool, comprising: a rotary feed mechanism and a tripod support limit mechanism, the rotary feed mechanism comprising a crossbeam, a threaded rod, a first limit piece and a second limit piece, a first threaded hole is provided in the middle of the crossbeam, the thread of the threaded rod is threadedly connected to the first threaded hole, the first limit piece and the second limit piece are slidably connected to the crossbeam and can maintain their positions after sliding, and the first limit piece and the second limit piece are located on both sides of the threaded hole, the first limit piece and the second limit piece are used to abut against the end of the bearing port to limit the crossbeam from moving along the The axial direction of the bearing opening moves toward the end of the bearing opening, and rotating the first end of the threaded rod can drive the second end of the threaded rod to move along the axial direction of the bearing opening; the tripod support and limiting mechanism includes a tripod body, three adjustment cylinders and three adjustment rods, the middle part of the tripod body is rotatably connected to the second end of the threaded rod, the three adjustment cylinders are fixedly connected to the tripod body along a direction perpendicular to the threaded rod, and are evenly arranged along the circumference of the tripod body, one end of the adjustment rod is used to be threadedly connected to the adjustment cylinder, and the other end is used to tighten on the inner raceway of the outer ring of the bearing.
[0007] Preferably, the first limiting member includes a first vertical beam and a first bolt, the top end of the first vertical beam is provided with a first through hole, one end of the cross beam passes through the first through hole so that the first vertical beam can slide along the cross beam, the top end of the first vertical beam is provided with a second threaded hole communicating with the first through hole, the first bolt is used to be threadedly connected to the second threaded hole, and one end of the first bolt passes through the second threaded hole and abuts against the cross beam to limit the first vertical beam to the sliding position.
[0008] Preferably, the second limiting member includes a second vertical beam and a second bolt, the top end of the second vertical beam is provided with a second through hole, one end of the cross beam passes through the second through hole so that the second vertical beam can slide along the cross beam, the top end of the second vertical beam is provided with a third threaded hole connected to the second through hole, the second bolt is used to be threadedly connected to the third threaded hole, and one end of the second bolt passes through the third threaded hole and abuts against the cross beam to limit the second vertical beam to the sliding position.
[0009] Preferably, the rotary feeding mechanism also includes a push rod head and a rotating rod, the push rod head is fixedly connected to the first end of the threaded rod, the push rod head is provided with a second through hole perpendicular to the threaded rod, and the rotating rod is used to pass through the second through hole so that the operator pushes the two ends of the rotating rod to drive the threaded rod to rotate.
[0010] Preferably, it also includes a first spherical cap and a second spherical cap, and the two ends of the rotating rod are provided with a first threaded segment and a second threaded segment, the first spherical cap is provided with a fourth threaded hole, and the second spherical cap is provided with a fifth threaded hole, the first threaded segment is used for threaded connection with the fourth threaded hole, and the second threaded segment is used for threaded connection with the fifth threaded hole.
[0011] Preferably, the first vertical beam and the second vertical beam have the same length, and the length of the first vertical beam is greater than the thickness of the bearing to be disassembled so that there is enough space between the cross beam and the end of the bearing port to accommodate the bearing.
[0012] Preferably, it further includes a connecting round rod, a third threaded section and a locking nut, one end of the connecting round rod is coaxially connected to the threaded rod, the diameter of the connecting round rod is smaller than the diameter of the threaded rod, the third threaded section is coaxially connected to the end of the connecting round rod away from the threaded rod, the diameter of the third threaded section is smaller than the diameter of the connecting round rod, a third through hole is provided in the middle of the tripod body, the third through hole is used to be sleeved on the outside of the connecting round rod, and the locking nut is used to be threadedly connected to the third threaded section to limit the tripod body to the connecting round rod.
[0013] Preferably, it further includes a first gasket and a second gasket, wherein the first gasket is sleeved on the outside of the connecting round rod and is located between the tripod body and the threaded rod, and the second gasket is sleeved on the outside of the third threaded segment and is located between the locking nut and the tripod body.
[0014] Preferably, the end of the adjustment rod away from the adjustment cylinder is a round head end, and the outer peripheral surface of the round head end is a hexagonal nut structure.
[0015] The present invention also provides a method for using the bearing inner hole removal tool as described in any one of the above items, characterized in that it includes the following steps:
[0016] According to the size of the bearing outer ring, rotate the adjustment rods in the three adjustment cylinders on the tripod body respectively. Through the threaded fit of the adjustment rods and the adjustment cylinders, the round ends of the adjustment rods are firmly pressed against the inner raceway of the bearing outer ring.
[0017] Sliding the first limiting member and the second limiting member along the crossbeam so that the first limiting member and the second limiting member are stably supported on the outer end surface of the bearing hole;
[0018] Rotating the first end of the threaded rod causes its second end to move along the axis of the bearing opening. The movement of the threaded rod drives the tripod body rotatably connected thereto to move. When the tripod body moves, the outer ring of the bearing is slowly pulled out of the bearing hole.
[0019] Compared with the prior art, the present invention has achieved the following technical effects:
[0020] The present invention provides a bearing inner hole disassembly tool and a method for use. A threaded connection enables a threaded rod to stably perform linear feed motion on a crossbeam, providing a basis for power transmission for subsequently driving the tripod body and realizing the disassembly of the bearing outer ring, thereby ensuring the accuracy and stability of the motion. The design of the first and second limiters can flexibly adjust their positions on the crossbeam according to the position and size of different bearing holes, and stably abut against the end of the bearing opening, thereby providing a stable support point for the entire disassembly tool, preventing excessive movement of the crossbeam from affecting the disassembly operation, effectively ensuring precise control of the disassembly position, and improving the stability and reliability of the tool. By rotating one end of the threaded rod to drive the other end to move, a simple manual rotation operation is converted into an effective linear displacement. This simple and intuitive operation method greatly reduces the difficulty of operation for workers, improves the operability of the disassembly tool, and facilitates rapid work in actual maintenance. The tripod body is rotatably connected to the threaded rod and can flexibly adapt to the movement of the threaded rod and move accordingly. The adjustment tubes are evenly arranged on the tripod body. Together with the threaded adjustment rod, the telescopic length of the adjustment rod can be precisely adjusted so that the adjustment rod is accurately pressed against different positions of the inner raceway of the bearing outer ring, thereby providing stable and uniform support and pulling force for the bearing outer ring, which helps to remove the bearing outer ring smoothly and reliably. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 A schematic structural diagram of a bearing inner hole disassembly tool provided by the present invention;
[0023] Figure 2 An exploded view of the bearing inner hole disassembly tool provided by the present invention;
[0024] In the figure: 1. crossbeam; 2. threaded rod; 3. first vertical beam; 4. second vertical beam; 6. tripod body; 7. adjustment tube; 8. adjustment rod; 9. first bolt; 10. first through hole; 11. second threaded hole; 12. top rod head; 13. rotating rod; 14. first spherical cap; 15. first threaded section; 16. fourth threaded hole; 17. connecting round rod; 18. third threaded section; 19. locking nut; 20. third through hole; 21. first gasket; 22. second gasket; 23. rib. DETAILED DESCRIPTION
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] The purpose of the present invention is to provide a bearing inner hole disassembly tool and a method of use to solve the problems existing in the above-mentioned prior art. It has a simple structure, is easy to use, effectively improves maintenance efficiency, effectively reduces labor intensity, and avoids secondary damage to the equipment during the bearing disassembly process.
[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] The present invention provides a bearing inner hole disassembly tool, such as Figures 1-2 As shown, it includes: a rotary feed mechanism and a tripod support limit mechanism, the rotary feed mechanism includes a crossbeam 1, a threaded rod 2, a first limiter and a second limiter, a first threaded hole is provided in the middle of the crossbeam 1, the threaded rod 2 is threadedly connected to the first threaded hole, the first limiter and the second limiter are slidably connected to the crossbeam 1 and can maintain the position after sliding, and the first limiter and the second limiter are located on both sides of the threaded hole, the first limiter and the second limiter are used to abut against the end of the bearing port to limit the crossbeam 1 from moving along the axis direction of the bearing port toward the bearing The port of the bearing port moves, and rotating the first end of the threaded rod 2 can drive the second end of the threaded rod 2 to move along the axial direction of the bearing port; the tripod support limiting mechanism includes a tripod body 6, three adjustment cylinders 7 and three adjustment rods 8. The middle part of the tripod body 6 is rotatably connected to the second end of the threaded rod 2, and the three adjustment cylinders 7 are fixedly connected to the tripod body 6 along a direction perpendicular to the threaded rod 2, and are evenly arranged along the circumference of the tripod body 6. One end of the adjusting rod 8 is used to be threadedly connected to the adjusting cylinder 7, and the other end is used to be tightened on the inner raceway of the bearing outer ring.
[0029] The threaded connection allows the threaded rod 2 to stably perform linear feed motion on the crossbeam 1, providing the basis for power transmission for the subsequent driving of the tripod body and the removal of the bearing outer ring, ensuring the accuracy and stability of the motion. This design of the first and second limiters can flexibly adjust their positions on the crossbeam 1 according to the location and size of different bearing holes, and stably abut the ends of the bearing openings, thereby providing a stable support point for the entire disassembly tool, preventing excessive movement of the crossbeam 1 from affecting the disassembly operation, effectively ensuring precise control of the disassembly position, and improving the stability and reliability of the tool. By rotating one end of the threaded rod 2 to drive the movement of the other end, a simple manual rotation operation is converted into an effective linear displacement. This simple and intuitive operation method greatly reduces the difficulty of operation for workers, improves the operability of the disassembly tool, and facilitates rapid work in actual maintenance. The tripod body 6 is rotatably connected to the threaded rod 2 and can flexibly adapt to the movement of the threaded rod 2 and move with it. The adjustment tube 7 is evenly arranged on the tripod body 6, and cooperates with the adjustment rod 8 that can be threadedly connected to accurately adjust the telescopic length of the adjustment rod 8, so that the adjustment rod 8 can be accurately tightened at different positions of the inner raceway of the bearing outer ring, thereby providing stable and uniform support and pulling force for the bearing outer ring, which helps to smoothly and reliably disassemble the bearing outer ring.
[0030] In a preferred embodiment of this embodiment, the first stopper comprises a first vertical beam 3 and a first bolt 9. A first through-hole 10 is provided at the top of the first vertical beam 3. The first through-hole 10 is a rectangular hole that matches the crossbeam 1. One end of the crossbeam 1 passes through the first through-hole 10, allowing the first vertical beam 3 to slide along the crossbeam 1. A second threaded hole 11 is provided at the top of the first vertical beam 3, communicating with the first through-hole 10. The first bolt 9 is threadedly connected to the second threaded hole 11, and one end of the first bolt 9 passes through the second threaded hole 11 to abut against the crossbeam 1, thereby confining the first vertical beam 3 to its sliding position. This structural design makes the sliding and positioning of the first vertical beam 3 on the crossbeam 1 very simple. By loosening and tightening the first bolt 9, the position of the first vertical beam 3 on the crossbeam 1 can be easily adjusted to accommodate the support requirements of bearing holes of different sizes. Once fixed, the first vertical beam 3 provides stable support on one side of the tool, enhancing the stability of the entire disassembly tool during operation.
[0031] In a preferred solution of this embodiment, the second limiting member includes a second vertical beam 4 and a second bolt. A second through hole is provided at the top of the second vertical beam 4. The second through hole is a rectangular hole matching the crossbeam 1. One end of the crossbeam 1 passes through the second through hole so that the second vertical beam 4 can slide along the crossbeam 1. A third threaded hole connected to the second through hole is provided at the top of the second vertical beam 4. The second bolt is used to be threadedly connected to the third threaded hole, and one end thereof passes through the third threaded hole and abuts against the crossbeam 1 to limit the second vertical beam 4 to the position after sliding. Similar to the first limiting member, this structure of the second limiting member can realize the flexible sliding and precise positioning of the second vertical beam 4 on the crossbeam 1, provide stable support for the tool on the other side, and cooperate with the first limiting member to further ensure the stability of the crossbeam 1 at the bearing port position, ensure that the tool will not shift during the disassembly process, and improve the accuracy and reliability of disassembly.
[0032] In a preferred embodiment of the present invention, the rotary feed mechanism further includes a push rod head 12 and a rotating rod 13. The push rod head 12 is fixedly connected to the first end of the threaded rod 2. The push rod head 12 is provided with a second through hole perpendicular to the threaded rod 2. The rotating rod 13 is used to pass through the second through hole so that the operator can push the two ends of the rotating rod 13 to drive the threaded rod 2 to rotate. The provision of the push rod head 12 and the rotating rod 13 greatly improves the convenience of the operator in rotating the threaded rod 2. By pushing the two ends of the rotating rod 13, the threaded rod 2 can be easily rotated using the principle of leverage, reducing the force required for the worker to operate and further reducing labor intensity. At the same time, it also makes the rotation operation more precise and easier to control the rotation amount of the threaded rod 2, thereby achieving precise control of the disassembly process.
[0033] In a preferred solution of this embodiment, it also includes a first spherical cap 14 and a second spherical cap, and a first threaded segment 15 and a second threaded segment are provided at both ends of the rotating rod 13. The first spherical cap 14 is provided with a fourth threaded hole 16, and the second spherical cap is provided with a fifth threaded hole. The first threaded segment 15 is used for threaded connection with the fourth threaded hole 16, and the second threaded segment is used for threaded connection with the fifth threaded hole. The threaded connection between the first spherical cap 14 and the second spherical cap and the rotating rod 13 not only plays a role in fixing the structure of the rotating rod 13 to prevent the rotating rod 13 from detaching from the top rod head 12 during rotation, but also makes it easy for the operator to hold it, which is convenient and practical.
[0034] In a preferred solution of this embodiment, the first vertical beam 3 and the second vertical beam 4 have the same length, and the length of the first vertical beam 3 is greater than the thickness of the bearing to be disassembled so that there is enough space between the crossbeam 1 and the end of the bearing port to accommodate the bearing. By setting the first vertical beam 3 and the second vertical beam 4 of the same length and longer than the thickness of the bearing, it is ensured that there is enough space between the crossbeam 1 and the end of the bearing port to accommodate the bearing to be disassembled, avoiding the situation where the bearing is blocked and cannot be removed smoothly due to insufficient space during the disassembly process, thereby ensuring that the disassembly work can proceed smoothly.
[0035] In a preferred solution of this embodiment, it also includes a connecting rod 17, a third threaded segment 18 and a locking nut 19. One end of the connecting rod 17 is coaxially connected to the threaded rod 2. The diameter of the connecting rod 17 is smaller than the diameter of the threaded rod 2. The third threaded segment 18 is coaxially connected to the end of the connecting rod 17 away from the threaded rod 2. The diameter of the third threaded segment 18 is smaller than the diameter of the connecting rod 17. A third through hole 20 is provided in the middle of the tripod body 6. The third through hole 20 is used to be sleeved on the outside of the connecting rod 17. The locking nut 19 is used to be threadedly connected to the third threaded segment 18 to limit the tripod body 6 to the connecting rod 17. The design of the connecting rod 17, the third threaded segment 18 and the locking nut 19 realizes a stable and adjustable connection between the tripod body 6 and the threaded rod 2. This structure not only ensures that the tripod body 6 can move along with the movement of the threaded rod 2, but also makes installation and removal of the tripod body 6 more convenient and quick, and makes it easier to replace the tripod body 6 according to different needs at the maintenance site, thereby improving the versatility and applicability of the tool.
[0036] In a preferred embodiment of the present invention, a first washer 21 and a second washer 22 are further included. The first washer 21 is sleeved on the outside of the connecting rod 17 and is located between the tripod body 6 and the threaded rod 2. The second washer 22 is sleeved on the outside of the third threaded section 18 and is located between the locking nut 19 and the tripod body 6. The provision of the first washer 21 and the second washer 22 serves as a buffer and positioning function. The first washer 21 can prevent direct friction between the tripod body 6 and the threaded rod 2, reducing wear and noise. It can also better achieve positioning, allowing the rotation of the tripod body 6 to be smoother. The second washer 22 can provide a better buffering effect when the locking nut 19 is fixed, preventing damage to the tripod body 6 caused by overtightening of the locking nut 19, further improving the reliability and service life of the entire connection structure.
[0037] In a preferred embodiment of this embodiment, the end of adjustment rod 8 facing away from adjustment cylinder 7 is rounded, and the outer circumference of the rounded end has a hexagonal nut structure. This rounded end design better aligns with the inner raceway of the bearing outer ring, providing a larger contact area and enhancing the tightening effect, ensuring that the bearing outer ring can be firmly grasped during disassembly. The hexagonal nut structure facilitates rotation using a tool (such as a wrench), allowing for more precise adjustment of the extension length of adjustment rod 8 to accommodate bearings of different sizes, improving the flexibility and convenience of tool use.
[0038] In a preferred embodiment of this invention, three ribs 23 are further included. The bottom edges of the ribs 23 are fixedly connected to the adjustment tube, and the sides are fixedly connected to the tripod body 6. The provision of the ribs 23 effectively enhances the connection strength and structural stability between the adjustment tube and the tripod body 6. During the disassembly process, the ribs can withstand greater forces without deformation, ensuring the stability and reliability of the tripod support and limit mechanism, thereby ensuring smooth disassembly of the entire bearing without affecting the disassembly process or causing damage to the tool due to structural instability.
[0039] Example 2
[0040] This embodiment further provides a method for using the bearing inner hole removal tool as described in any one of the first embodiments, characterized in that it includes the following steps:
[0041] Here's how to use the bearing inner hole removal tool:
[0042] 1. Preparation
[0043] 1.1. Check tool components: Conduct a comprehensive inspection of all components of the entire bearing inner hole removal tool to ensure that all parts are not damaged, the threads are not worn, and all connection parts are firm and reliable. For example, check that the crossbeam 1, threaded rod 2, first limiter (first vertical beam 3 and first bolt 9), second limiter (second vertical beam 4 and second bolt), push rod head 12, rotating rod 13, first spherical cap 14, second spherical cap, connecting round rod 17, third threaded section 18, locking nut 19, first gasket 21, second gasket 22, tripod body, adjustment tube 7, adjustment rod 8, rib 23 and other components are in good condition.
[0044] 1.2. Select the appropriate tripod body and adjustment rod 8: Select the appropriate tripod body and adjustment rod 8 based on the specifications of the bearing outer ring to be removed. Different bearing diameter ranges require corresponding tripod bodies and adjustment rods 8. Ensure that the adjustment rod 8 can accurately press against the inner raceway of the bearing outer ring.
[0045] 2. Tool assembly
[0046] 2.1. Assemble the rotary feed mechanism
[0047] The push rod head 12 is fixedly connected to the first end of the threaded rod 2.
[0048] Pass the rotating rod 13 through the second through hole set in the top rod head 12 and perpendicular to the threaded rod 2, and then connect the first spherical cap 14 and the second spherical cap to the two ends of the rotating rod 13 (the first thread segment 15 and the second thread segment) through threads respectively to fix the rotating rod 13 structure.
[0049] 2.2. Connect the tripod support limit mechanism and the rotary feed mechanism
[0050] The first washer 21 is mounted on the outside of the connecting rod 17, and the third through hole 20 in the middle of the tripod body is mounted on the outside of the connecting rod 17. Then, the second washer 22 is mounted on the third threaded segment 18 at the end of the connecting rod 17 away from the threaded rod 2. Finally, the locking nut 19 is threadedly connected to the third threaded segment 18 to limit the tripod body to the connecting rod 17 and realize a rotatable connection between the tripod body and the threaded rod 2.
[0051] 2.3. Install the adjustment rods 8: Thread the three adjustment rods 8 into the three adjustment tubes 7 on the tripod body.
[0052] 3. Tools in place
[0053] Slowly and accurately insert the threaded rod 2 of the assembled bearing inner hole removal tool into the bearing hole of the bearing to be removed, so that the entire tool is in a suitable working position.
[0054] 4. Adjust the support point
[0055] According to the size of the bearing outer ring, rotate the adjustment rods 8 within the three adjustment cylinders 7 on the tripod body. The threads of the adjustment rods 8 and adjustment cylinders 7 engage, ensuring that the rounded ends of the adjustment rods 8 firmly press against the inner raceway of the bearing outer ring. This better fit and larger contact area between the rounded ends and the inner raceway ensure a stable and reliable support point, serving as a pivot point for subsequent pulling of the bearing outer ring. Using a wrench or other tool, the hexagonal nut structure allows for more precise adjustment of the extension length of the adjustment rods 8.
[0056] 5. Fix the position of the vertical beam
[0057] Slide the first vertical beam 3 and the second vertical beam 4 along the crossbeam 1 to find the best support position according to the actual position and size of the bearing hole.
[0058] After confirming the correct position, use a wrench to rotate the first and second bolts separately. The first bolt 9 passes through the second threaded hole 11 in the first vertical beam 3, which is connected to the first through-hole 10, and abuts against the crossbeam 1, securing the first vertical beam 3 in its sliding position. The second bolt passes through the third threaded hole in the second vertical beam 4, which is connected to the second through-hole, and abuts against the crossbeam 1, securing the second vertical beam 4 in its sliding position. The first and second vertical beams 3 and 4 are stably supported on the outer end faces of the bearing holes, providing stable support for the entire tool. Because the first and second vertical beams 3 and 4 are of the same length and are greater than the thickness of the bearing, there is sufficient space between the crossbeam 1 and the bearing port to accommodate the bearing.
[0059] 6. Start disassembly
[0060] Pushing both ends of the rotating rod 13 rotates the threaded rod 2 through the lever principle. Since the threaded rod 2 is threadedly connected to the first threaded hole in the middle of the beam 1, rotating the first end of the threaded rod 2 will cause its second end to move along the axis of the bearing opening.
[0061] The movement of threaded rod 2 drives the tripod body, to which it is rotatably connected, to move. Because the rounded end of adjustment rod 8 is already pressed against the inner raceway of the bearing outer ring, the movement of the tripod body slowly pulls the bearing outer ring out of the bearing hole. During this process, the first and second stoppers restrict excessive movement of crossbeam 1 along the axis of the bearing opening toward the end of the bearing opening, ensuring a stable and precise disassembly process. The structural stability and rational operational design ensure smooth power transmission throughout the entire process, reducing operator effort and enabling efficient removal of the bearing outer ring.
[0062] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.
Claims
1. A bearing inner hole disassembly tool, characterized by: include: The rotary feed mechanism comprises a crossbeam, a threaded rod, a first limit piece and a second limit piece, a first threaded hole being provided in the middle portion of the crossbeam, the threaded rod being threadedly connected to the first threaded hole, the first limit piece and the second limit piece being slidably connected to the crossbeam and capable of maintaining their positions after sliding, and the first limit piece and the second limit piece being located on both sides of the threaded hole, the first limit piece and the second limit piece being used to abut against the end of the bearing port to limit the crossbeam from moving toward the end of the bearing port along the axial direction of the bearing port, and rotating the first end of the threaded rod can drive the second end of the threaded rod to move along the axial direction of the bearing port; and A tripod support and limiting mechanism includes a tripod body, three adjustment cylinders and three adjustment rods. The middle part of the tripod body is rotatably connected to the second end of the threaded rod. The three adjustment cylinders are fixedly connected to the tripod body in a direction perpendicular to the threaded rod and are evenly arranged along the circumference of the tripod body. One end of the adjustment rod is used to be threadedly connected to the adjustment cylinder, and the other end is used to be tightened on the inner raceway of the outer ring of the bearing.
2. The bearing inner hole removal tool according to claim 1, characterized in that: The first limiting member includes a first vertical beam and a first bolt. A first through hole is provided at the top end of the first vertical beam. One end of the cross beam passes through the first through hole so that the first vertical beam can slide along the cross beam. A second threaded hole communicating with the first through hole is provided at the top end of the first vertical beam. The first bolt is used to be threadedly connected to the second threaded hole, and one end of the first bolt passes through the second threaded hole and abuts against the cross beam to limit the first vertical beam to the sliding position.
3. The bearing inner hole removal tool according to claim 2, characterized in that: The second limiting member includes a second vertical beam and a second bolt. A second through hole is provided at the top end of the second vertical beam. One end of the cross beam passes through the second through hole so that the second vertical beam can slide along the cross beam. A third threaded hole communicating with the second through hole is provided at the top end of the second vertical beam. The second bolt is used to be threadedly connected to the third threaded hole, and one end of the second bolt passes through the third threaded hole and abuts against the cross beam to limit the second vertical beam to the sliding position.
4. The bearing inner hole removal tool according to claim 3, characterized in that: The rotary feeding mechanism also includes a push rod head and a rotating rod, the push rod head is fixedly connected to the first end of the threaded rod, the push rod head is provided with a second through hole perpendicular to the threaded rod, and the rotating rod is used to pass through the second through hole so that the operator pushes the two ends of the rotating rod to drive the threaded rod to rotate.
5. The bearing inner hole removal tool according to claim 4, characterized in that: It also includes a first spherical cap and a second spherical cap, and a first threaded segment and a second threaded segment are provided at both ends of the rotating rod. The first spherical cap is provided with a fourth threaded hole, and the second spherical cap is provided with a fifth threaded hole. The first threaded segment is used for threaded connection with the fourth threaded hole, and the second threaded segment is used for threaded connection with the fifth threaded hole.
6. The bearing inner hole removal tool according to claim 5, characterized in that: The first vertical beam and the second vertical beam have the same length, and the length of the first vertical beam is greater than the thickness of the bearing to be disassembled so that there is enough space between the cross beam and the end of the bearing port to accommodate the bearing.
7. The bearing inner hole removal tool according to claim 6, characterized in that: It also includes a connecting round rod, a third threaded section and a locking nut, one end of the connecting round rod is coaxially connected to the threaded rod, the diameter of the connecting round rod is smaller than the diameter of the threaded rod, the third threaded section is coaxially connected to the end of the connecting round rod away from the threaded rod, the diameter of the third threaded section is smaller than the diameter of the connecting round rod, a third through hole is provided in the middle of the tripod body, the third through hole is used to be sleeved on the outside of the connecting round rod, and the locking nut is used to be threadedly connected to the third threaded section to limit the tripod body to the connecting round rod.
8. The bearing inner hole removal tool according to claim 7, characterized in that: It also includes a first gasket and a second gasket, the first gasket is sleeved on the outside of the connecting round rod and is located between the tripod body and the threaded rod, and the second gasket is sleeved on the outside of the third threaded section and is located between the locking nut and the tripod body.
9. The bearing inner hole removal tool according to claim 1, characterized in that: One end of the adjusting rod away from the adjusting cylinder is a round head end, and the outer peripheral surface of the round head end is a hexagonal nut structure.
10. A method for using the bearing inner hole removal tool according to any one of claims 1 to 9, characterized in that: The following steps are involved: According to the size of the bearing outer ring, rotate the adjustment rods in the three adjustment cylinders on the tripod body respectively. Through the threaded fit of the adjustment rods and the adjustment cylinders, the round ends of the adjustment rods are firmly pressed against the inner raceway of the bearing outer ring. Sliding the first limiting member and the second limiting member along the crossbeam so that the first limiting member and the second limiting member are stably supported on the outer end surface of the bearing hole; Rotating the first end of the threaded rod causes its second end to move along the axis of the bearing opening. The movement of the threaded rod drives the tripod body rotatably connected thereto to move. When the tripod body moves, the outer ring of the bearing is slowly pulled out of the bearing hole.