Multi-mode puller
Through the design of the multi-mode puller, flexible adjustment of the support part and the hook and grab component is achieved, which solves the problem that the existing puller cannot adapt to the disassembly of different bearings and improves the applicability and flexibility.
Patent Information
- Application Number
- CN202422552417.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing puller has a single design and cannot flexibly adapt to the disassembly requirements of different types of bearings, especially it cannot be disassembled from the inside and outside at the same time, and the hook head cannot be replaced, resulting in a narrow range of applicability.
A multi-mode puller is designed, including a support part and a hook and grab component. The support part can adjust the support position, the hook and grab component can switch the direction of the hook claw, support inside and outside disassembly, and the hook head can be replaced to adapt to different situations.
The support position and hook direction can be adjusted according to needs, which can adapt to various bearing disassembly situations, improve applicability, and solve the problem of single application scenario of traditional pullers.
Smart Images
Figure CN223301622U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing disassembly equipment, in particular to a multi-mode puller. Background Art
[0002] Bearing disassembly often requires the use of a puller. The current puller is designed for a relatively simple usage method and can only be disassembled from the outside or inside of the bearing. A single puller is often unable to complete the switching of inside and outside work, and the bearings to be disassembled are diverse. The application range of traditional pullers is relatively narrow, and their hook heads cannot be replaced. When dealing with bearings with a shaft inside and an embedded outside, it is impossible to separate them from the inside or outside with a traditional puller. At this time, other heads are required, and traditional pullers often cannot replace the heads, which has disadvantages. Summary of the Invention
[0003] In view of the problems existing in the prior art, the utility model provides a multi-mode puller.
[0004] The technical solution adopted by the utility model to solve its technical problems is:
[0005] A multi-mode puller is characterized in that it includes a support portion, the support portion is generally in a "C" shape with an opening facing downward, and a hooking component is provided on the lower side of the middle portion of the support portion.
[0006] The support portion includes a central block, a sliding rod and supporting legs. A through hole is provided in the middle of the central block, and sliding rods are fixedly connected on both sides. Supporting legs are slidably provided on the sliding rods.
[0007] The hook-grabbing component includes a mounting seat, which is cylindrical as a whole and has multiple connecting heads arranged at the outer edge. The hook head is rotatably connected to the connecting head. A central screw is threadedly connected at the center position of the mounting seat, and the upper end of the central screw passes through the support part.
[0008] Preferably, a threaded hole is provided at the upper end of the support leg to cooperate with the support leg fixing screw, and the support leg is fixed to the slide rod through the support leg fixing screw; a guide groove is also provided at the center position of the support leg.
[0009] Preferably, three evenly distributed connectors are provided at the outer edge of the mounting seat;
[0010] Preferably, the hook head includes a hook mounting rod and a hook; the upper end of the hook mounting rod is rotatably connected to the connecting head, the hook mounting rod is in an "L" shape as a whole, the lower end of the hook mounting rod is detachably connected to the hook via a hook mounting screw, and a mounting hole is provided on the side wall of the hook mounting rod to cooperate with the guide groove of the support leg;
[0011] Preferably, the central screw passes through a through hole provided in the middle of the central block, and one end of the central screw located on the upper side of the central block is threadedly connected to a screw nut.
[0012] In the first mode (i.e. when the bearing needs to be pulled off the shaft from the outside of the bearing), the mounting seat is mounted on the central screw in the forward direction, the hook mounting rod is "L" shaped outward, and the hook is toward the center of the mounting seat.
[0013] In the second mode (i.e. when the bearing needs to be pulled out of the housing from the inside of the bearing), the mounting seat is reversely mounted on the center screw. At this time, the hook mounting rod and the hook are flipped, and the "L" shape of the hook mounting rod is facing the center of the mounting seat, and the hook is facing outward. A conical blocking block (not shown in the figure) is connected to the center of multiple hooks, i.e. the lower end of the center screw, and the diameter of the conical blocking block is larger than that of the center screw.
[0014] In the third mode (i.e. when it is necessary to disassemble the "shaft inside and bearing embedded outside"), the hook includes a flat head mounting head detachably connected to the hook mounting rod, an adjustment knob is rotatably connected to the lower side of the flat head mounting head, and a sheet-shaped flat head is fixedly connected to the lower end of the adjustment knob.
[0015] Preferably, an additional connector is provided at the outer edge of the mounting seat, which is arranged at an angle of 180 degrees to any one of the original three connectors and is opposite to each other; the hooking component is provided with a hook head on the corresponding connector as needed.
[0016] The beneficial effects of the utility model are:
[0017] 1. The utility model can manually adjust the support position of the support legs according to different usage environments, so that it can be used in different operating spaces;
[0018] 2. The hook component of the utility model can disassemble the hook according to needs. When using the hook type hook, the inner and outer sides of the hook bearing can be changed by using it forward or reverse, so that it can be applied to various situations such as disassembling bearings with shafts and bearings without shafts. If a flat head hook is used, it can be inserted between the inner and outer rings of the bearing and pull out the bearing from the middle, thereby solving the problem of disassembling bearings with a shaft inside and embedded outside. It has a higher application surface, which changes the problem of traditional pullers with a single application scenario and inability to adapt to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the overall structure of a multi-mode puller according to an embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of a multi-mode puller from another angle according to an embodiment of the utility model;
[0021] Figure 3 yes Figure 1 The main view;
[0022] Figure 4 yes Figure 1 Schematic diagram of the structure after replacing the "hook".
[0023] Among them, 10-mounting seat, 11-hook mounting rod, 12-hook, 13-hook mounting screw, 14-mounting hole, 15-center screw, 16-screw nut, 17-center block, 18-slide rod, 19-support leg fixing screw, 20-guide groove, 21-flat head, 22-adjustment knob, 23-flat head mounting head, 24-support leg. DETAILED DESCRIPTION
[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.
[0025] like Figure 1-4 As shown, a multi-mode puller includes a support part, which is in the shape of a "C" with an opening downward. The support position on both sides can be adjusted according to the actual use environment. A hooking component is provided on the lower side of the middle part of the support part. The hooking component can switch the direction of the hook claw to achieve the purpose of hooking the inner and outer sides of the bearing as needed.
[0026] The supporting part includes a center block 17, a slide rod 18 and a support leg 24. A through hole is provided in the middle of the center block 17, and slide rods 18 are fixedly connected on both sides of the center block 17. Support legs 24 are slidably provided on the slide rod 18. The upper end of the support leg 24 is provided with a threaded hole that cooperates with the support leg fixing screw 19. The support leg 24 is fixed to the slide rod 18 by the support leg fixing screw 19; a guide groove 20 is also provided at the center position of the support leg 24; when the device needs to be supported, the support leg 24 can be slid to a suitable position on the slide rod 18 according to different usage environments, and tightened and fixed by the support leg fixing screw 19.
[0027] The hook-grabbing component includes a mounting seat 10, which is cylindrical as a whole and has three evenly distributed connecting heads at the outer edge. A hook head is rotatably connected to the connecting head; the hook head includes a hook mounting rod 11 and a hook 12. The upper end of the hook mounting rod 11 is rotatably connected to the hook 12. The hook mounting rod 11 is "L"-shaped as a whole. The lower end of the hook mounting rod 11 is detachably connected to the hook 12 through a hook mounting screw 13. A center screw 15 is threadedly connected at the center position of the mounting seat 10. The upper end of the center screw 15 passes through the support part and passes through the through hole set in the middle of the center block 17. The end of the center screw 15 located on the upper side of the center block 17 is threadedly connected to a screw nut 16; a mounting hole 14 is provided on the side wall of the hook mounting rod 11 to cooperate with the guide groove of the support leg 24.
[0028] In the first mode (i.e., when the bearing needs to be pulled off the shaft from the outside of the bearing), the mounting seat 10 is mounted forward on the center screw 15, the hook mounting rod 11 is "L"-shaped and faces outward, and the hook 12 faces the center position of the mounting seat 10; during operation, the lower end of the center screw 15 is placed against the shaft, and the hook 12 is hooked on the lower edge of the bearing outer ring, and then the other end of the center screw 15 is twisted with a tool to rotate the center screw 15. The rotation of the center screw 15 will cause the mounting seat 10 to move in the up and down directions, thereby driving the hook mounting rod 11 to move the hook 12 in the up and down directions, thereby pulling out the bearing.
[0029] In the second mode (i.e. when the bearing needs to be pulled out of the housing from the inside of the bearing), the mounting seat 10 is reversely mounted on the central screw 15. At this time, the hook mounting rod 11 and the hook 12 are flipped, and the hook mounting rod 11 is "L"-shaped toward the center of the mounting seat 10, and the hook 12 faces outward. A conical blocking block (not shown in the figure) is connected to the center of the multiple hooks 12, that is, the lower end of the central screw 15. The diameter of the conical blocking block is larger than the central screw 15. When working, the hook 12 is placed on the lower edge of the inner ring of the bearing, and the hook is blocked by the conical blocking block. The hand 12 is retracted toward the center, and the device is supported by adjusting the support part. A metal guide rod is inserted into the mounting hole 14 through the guide groove 20, and the metal guide rod is kept in the guide groove 20. Then the screw nut 16 is screwed with a tool. The lower side of the screw nut 16 is blocked by the support part and cannot move downward. Therefore, under the guidance of the guide groove 20 and the metal rod, the center screw 15 is pulled upward through the thread. The upward movement of the center screw 15 will drive the hook mounting rod 11 and the hook 12 through the mounting seat 10 to pull the bearing out from the inside.
[0030] In the third mode (i.e. when it is necessary to disassemble the "bearing with a shaft inside and embedded outside"), the hook 12 includes a flat head mounting head 23 detachably connected to the hook mounting rod 11, and the lower side of the flat head mounting head 23 is rotatably connected to the adjusting knob 22, and the lower end of the adjusting knob 22 is fixedly connected to a sheet-shaped flat head 21; during operation, the flat head 21 is inserted into the bearing, and then the flat head 21 is vertically positioned by the adjusting knob 22, so that the flat head 21 is stuck between the inner and outer rings of the bearing, and then the other end of the center screw 15 is twisted by a tool to rotate the center screw 15. The rotation of the center screw 15 will cause the mounting seat 10 to move in the up and down directions, thereby driving the hook mounting rod 11 to move the hook 12 in the up and down directions, thereby pulling out the bearing.
[0031] Furthermore, an additional connector is provided at the outer edge of the mounting seat 10, which is arranged at one hundred and eighty degrees opposite to any one of the original three connectors; the hook and grab component is installed with a hook head on the corresponding connector as needed, thereby ensuring that the hook and grab component can be disassembled using three or two hooks 12 according to the situation.
[0032] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth in the claims.
Claims
1. A multi-mode puller, characterized in that: The supporting portion is in a "C" shape with an opening downward, and a hooking component is provided on the lower side of the middle portion of the supporting portion; The support portion comprises a central block (17), a slide rod (18) and a support leg (24); a through hole is provided in the middle of the central block (17), and the slide rods (18) are fixedly connected on both sides; and the support leg (24) is slidably provided on the slide rod (18); The hooking component comprises a mounting seat (10), the mounting seat (10) being cylindrical in shape as a whole, with a plurality of connecting heads provided at the outer edge, and a hook head being rotatably connected to the connecting head; a central screw (15) is threadedly connected at the center position of the mounting seat (10), and the upper end of the central screw (15) passes through the supporting portion.
2. A multi-mode puller according to claim 1, characterized in that: The upper end of the support leg (24) is provided with a threaded hole that cooperates with the support leg fixing screw (19), and the support leg (24) is fixed to the slide rod (18) through the support leg fixing screw (19); a guide groove (20) is also provided at the center position of the support leg (24).
3. The multi-mode puller according to claim 1, characterized in that: Three evenly distributed connectors are provided at the outer edge of the mounting seat (10).
4. The multi-mode puller according to claim 1, characterized in that: The hook head comprises a hook mounting rod (11) and a hook (12); the upper end of the hook mounting rod (11) is rotatably connected to the connecting head, the hook mounting rod (11) is in an "L" shape as a whole, the lower end of the hook mounting rod (11) is detachably connected to the hook (12) via a hook mounting screw (13), and a mounting hole (14) is provided on the side wall of the hook mounting rod (11) to cooperate with the support leg guide groove.
5. The multi-mode puller according to claim 1, characterized in that: The central screw (15) passes through a through hole provided in the middle of the central block (17), and one end of the central screw (15) located on the upper side of the central block (17) is threadedly connected to a screw nut (16).
6. The multi-mode puller according to claim 4, characterized in that: In the first mode, i.e., when the bearing needs to be pulled off the shaft from the outside of the bearing, the mounting seat (10) is mounted on the central screw (15) in the forward direction, the hook mounting rod (11) is "L"-shaped and faces outward, and the hook (12) faces the center of the mounting seat (10).
7. The multi-mode puller according to claim 4, characterized in that: In the second mode, i.e., when the bearing needs to be pulled out of the housing from the inner side of the bearing, the mounting seat (10) is reversely mounted on the central screw (15), at which time the hook mounting rod (11) and the hook (12) are flipped, the hook mounting rod (11) is "L"-shaped toward the center of the mounting seat (10), and the hook (12) faces outward, and a conical blocking block is connected to the center of the multiple hooks (12), i.e., the lower end of the central screw (15), and the diameter of the conical blocking block is larger than that of the central screw (15).
8. The multi-mode puller according to claim 4, characterized in that: In the third mode, i.e., when the "shaft inside and bearing embedded outside" needs to be disassembled, the hook (12) includes a flat head mounting head (23) detachably connected to the hook mounting rod (11), the lower side of the flat head mounting head (23) is rotatably connected to the adjusting knob (22), and the lower end of the adjusting knob (22) is fixedly connected to the sheet-shaped flat head (21).
9. The multi-mode puller according to claim 3, characterized in that: An additional connector is provided at the outer edge of the mounting seat (10), which is arranged at a 180-degree angle to any one of the original three connectors and is opposite to each other; the hooking component is provided with a hook head on the corresponding connector as needed.