Clutch input shaft bearing dismounting puller
By designing through holes and expansion gaps at the bottom of the puller shaft, combined with a tension adjustment shaft and flange support rod, the problem of existing pullers being unable to engage tightly was solved, enabling stable opening and slow pulling out of the bearing, thus improving disassembly efficiency and precision.
Patent Information
- Application Number
- CN202520205273.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-10
AI Technical Summary
When disassembling the input shaft bearing of the wet high-pressure dual clutch drive disc, the bottom end of the existing puller cannot be tightly engaged, resulting in low disassembly efficiency and easy frictional disengagement, which affects the accuracy and efficiency of operation.
A through hole and multiple expansion gaps are opened at the bottom of the puller shaft. Combined with the design of tension adjustment shaft and flange support rod, the operation accuracy is improved by indicator plate and scale plate, so as to realize the stable opening and slow pulling out of the bearing.
It enables convenient disassembly and recycling of bearings, improves operational accuracy and disassembly efficiency, and reduces operational errors.
Smart Images
Figure CN223790380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing disassembly technology, and more specifically to a clutch input shaft bearing disassembly puller. Background Technology
[0002] The clutch input shaft bearing supports the clutch driven plate, ensuring its stable rotation during operation. It also helps position the clutch pressure plate and other related components, guaranteeing the normal operation of the clutch system. Its working principle is based on rolling friction. A bearing puller is a tool used to remove and recycle bearings from a shaft. It mainly consists of a handle, a screw rod, and pull claws. The bearing puller drives the screw rod to rotate via the handle or a hydraulic system, thereby moving the pull claws outward and applying force to the inner or outer ring of the bearing, gradually disengaging the bearing from the shaft or other mating components.
[0003] During the press-fitting of the input shaft bearing of a wet high-pressure dual-clutch drive disc, mechanical structure failures and operator errors are unavoidable. These issues can lead to bearings not meeting the standard depth or being installed backwards. The input shaft and drive disc housing are connected by laser welding, and the bearings are assembled through press-fitting. These defective parts are usually scrapped. However, the drive disc itself, aside from bearing assembly issues, can still be reused. Therefore, a puller is needed to disassemble and recycle the bearings. However, existing pullers cannot tightly engage the bearings at the bottom; they only touch the bearing. This can lead to reduced friction and detachment during operation, affecting the efficiency of bearing disassembly. Utility Model Content
[0004] To overcome the aforementioned deficiencies in the prior art, this utility model provides a clutch input shaft bearing disassembly puller. By providing a through hole and multiple expansion gaps at the bottom end of the puller shaft, the tension adjustment shaft can gradually open the puller shaft during downward movement. This facilitates the puller shaft opening and fixing the bearing. Then, by rotating the disassembly nut, the puller shaft, which is limited by the flange support rod and the square fixing piece, is moved upward, thereby slowly pulling out the bearing. This achieves the effect of convenient disassembly and recycling of the bearing, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clutch input shaft bearing disassembly puller, comprising a functional component for disassembling the clutch input shaft bearing;
[0006] The functional component includes a tension adjustment shaft with a tapered bottom section. A puller shaft is sleeved on the outside of the bottom end of the tension adjustment shaft, and the outside of the tension adjustment shaft is threaded to the inner wall of the puller shaft. A through hole and multiple expansion gaps are opened on the outside of the bottom end of the puller shaft. The through hole is located at the bottom of the multiple expansion gaps, and the multiple expansion gaps are all connected to the through hole.
[0007] In a preferred embodiment, an upper flange is fitted over the top of the puller shaft, and a lower flange is provided at the bottom of the upper flange. Two flange support rods are bolted between the upper flange and the lower flange. The two flange support rods are respectively located on both sides of the puller shaft, and the upper flange and the lower flange are connected as a whole by means of the flange support rods, thereby ensuring the stability of the puller shaft.
[0008] In a preferred embodiment, a disassembly nut is installed on the top of the upper flange via a bearing, and the disassembly nut is sleeved on the outside of the puller shaft. The outside of the puller shaft is threadedly connected to the inner wall of the disassembly nut. The rotation of the disassembly nut drives the puller shaft, which is limited by a square fixing piece, to move, thereby improving the convenience of operating the puller shaft.
[0009] In a preferred embodiment, a square fastener is provided between the two flange support rods;
[0010] The square fastener includes a front plate and a rear plate fixed together by bolts. The front plate is located in front of the rear plate, and the front plate and the rear plate are respectively sleeved on the front and rear sides of the puller shaft. The front plate and the rear plate limit the puller shaft, so as to facilitate the displacement adjustment of the puller shaft, and at the same time, it can also ensure the stability of the puller shaft during displacement.
[0011] In a preferred embodiment, an indicator plate is installed inside the expansion gap on the front side of the puller shaft. The indicator plate is located on the top of the lower flange. By displaying the indicator plate, the staff can intuitively understand the displacement distance of the tension adjustment shaft.
[0012] In a preferred embodiment, a scale plate is provided on the front side of the indicator plate, and the bottom end of the scale plate is fixed together with the top of the lower flange. By the correspondence between the scale plate and the indicator plate, the operator can easily understand the displacement depth of the tension adjustment shaft, thereby improving the accuracy of operation and reducing operational errors.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] By opening a through hole and multiple expansion gaps at the bottom of the puller shaft, the tension adjustment shaft can gradually open the puller shaft during the downward movement. This makes it easier for the puller shaft to open the fixed bearing. Then, by rotating the disassembly nut, the puller shaft, which is limited by the flange support rod and the square fixing piece, is moved upward. This allows the bearing to be slowly pulled out, achieving the effect of convenient disassembly and recycling of the bearing.
[0015] By connecting the indicator plate to the tension adjustment shaft, the indicator plate can move along with the tension adjustment shaft. By matching the scale plate with the indicator plate, the displacement distance of the tension adjustment shaft can be clearly known, thereby improving the operator's operational accuracy and reducing operational errors. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 For the present utility model Figure 1 Enlarged view of section A in the middle;
[0018] Figure 3 This is a bottom view of the puller shaft of this utility model;
[0019] Figure 4 This is a cross-sectional view of the puller shaft of this utility model;
[0020] Figure 5 This is an exploded view of the front panel of this utility model.
[0021] The attached diagram is labeled as follows: 1. Tensioning adjustment shaft; 2. Puller shaft; 3. Through hole; 4. Expansion gap; 5. Upper flange; 6. Lower flange; 7. Flange support rod; 8. Removal nut; 9. Front plate; 10. Rear plate; 11. Indicator plate; 12. Scale plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Refer to the instruction manual appendix Figure 1-5 This utility model provides a clutch input shaft bearing disassembly puller, including functional components for disassembling the clutch input shaft bearing;
[0024] like Figure 1 , 3 As shown in Figures 4 and 5, the functional component includes a tension adjustment shaft 1 with a tapered bottom section. A puller shaft 2 is sleeved on the outside of the bottom end of the tension adjustment shaft 1, and the outside of the tension adjustment shaft 1 is threaded to the inner wall of the puller shaft 2. A through hole 3 and multiple expansion gaps 4 are opened on the outside of the bottom end of the puller shaft 2. The through hole 3 is located at the bottom of the multiple expansion gaps 4, and the multiple expansion gaps 4 are all connected to the through hole 3.
[0025] In use, the operator places the bottom end of the puller shaft 2 on the inner ring of the bearing, and then operates the tension adjustment shaft 1, which is threadedly connected to the puller shaft 2, to move it down. Because the bottom end of the puller shaft 2 has a through hole 3 and multiple expansion gaps 4, the tension adjustment shaft 1 can gradually open the puller shaft 2, which makes it easier for the puller shaft 2 to open and fix the bearing. After that, the disassembly nut 8 is rotated to drive the puller shaft 2, which is limited by the flange support rod 7 and the square fixing piece, to move it up. In this way, the bearing can be slowly pulled out, achieving the effect of convenient disassembly of the bearing for recycling and scrapping.
[0026] To ensure the stability of puller shaft 2, such as Figure 1 and 3 As shown, an upper flange 5 is sleeved on the top of the puller shaft 2, and a lower flange 6 is provided at the bottom of the upper flange 5. Two flange support rods 7 are bolted between the upper flange 5 and the lower flange 6. The two flange support rods 7 are respectively located on both sides of the puller shaft 2. Through the connection between the flange support rods 7 and the upper flange 5 and the lower flange 6, the puller shaft 2 installed in the upper flange 5 can be fixedly supported, thereby ensuring the stability of the puller shaft 2.
[0027] To facilitate displacement operations on puller shaft 2, such as Figure 1 and 3 As shown, a disassembly nut 8 is installed on the top of the upper flange 5 via a bearing, and the disassembly nut 8 is sleeved on the outside of the puller shaft 2. The outside of the puller shaft 2 is threadedly connected to the inner wall of the disassembly nut 8. Because the disassembly nut 8 is movably connected to the upper flange 5, it is convenient for the operator to rotate the disassembly nut 8. Also, because the disassembly nut 8 is threadedly connected to the puller shaft 2, when the operator rotates the disassembly nut 8, it can drive the puller shaft 2, which is limited by the flange support rod 7 and the square fixing piece, to move. This achieves the effect of conveniently operating the puller shaft 2 to move.
[0028] To ensure the stability of the puller shaft 2 during displacement, such as Figure 1 , 3 As shown in Figure 5, a square fastener is provided between the two flange support rods 7; the square fastener includes a front plate 9 and a rear plate 10 fixed together by bolts. The front plate 9 is located in front of the rear plate 10, and the front plate 9 and the rear plate 10 are respectively fitted on the front and rear sides of the puller shaft 2. Because the front plate 9 and the rear plate 10 are square after splicing, the front plate 9, the rear plate 10 and the flange support rods 7 can limit each other, thereby ensuring the stability of the puller shaft 2 during displacement and preventing the puller shaft 2 from tilting during displacement.
[0029] To improve operational accuracy, such as Figure 2As shown, an indicator plate 11 is installed inside the expansion gap 4 located in front of the puller shaft 2. The indicator plate 11 is located on the top of the lower flange 6. A scale plate 12 is provided on the front side of the indicator plate 11, and the bottom end of the scale plate 12 is fixed to the top of the lower flange 6. By connecting the indicator plate 11 with the tension adjustment shaft 1, the indicator plate 11 can move together with the tension adjustment shaft 1. By the correspondence between the scale plate 12 and the indicator plate 11, the operator can use the comparison between the indicator plate 11 and the scale plate 12 to indicate the displacement distance of the tension adjustment shaft 1, thereby improving the operator's operational accuracy and reducing operational errors.
[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A clutch input shaft bearing puller characterized by: The utility model provides a function piece for disassembling clutch input shaft bearing The utility model discloses a function piece for disassembling clutch input shaft bearing, including the taper of bottom end section arrangement of the function piece, the function piece bottom end outside is equipped with the draw -in shaft (2) of draw -in, and draw -in shaft (2) outer wall is connected with draw -in outside the draw -in adjustment axle (1) and draw -in adjustment axle (1), draw -in shaft (2) bottom end outside is equipped with the through -hole (3) and a plurality of expansion gap (4), the through -hole (3) is equipped in a plurality of expansion gap (4) bottom, and a plurality of expansion gap (4) are communicated with the through -hole (3).
2. A clutch input shaft bearing puller according to claim 1, wherein: Draw -in shaft (2) top outside is equipped with the upper flange (5), and the upper flange (5) bottom is equipped with the lower flange (6), and the upper flange (5) and lower flange (6) are installed two flange support rods (7) through bolt, and two flange support rods (7) are arranged respectively in draw -in shaft (2) both sides.
3. A clutch input shaft bearing puller according to claim 2, wherein: The upper flange (5) top is installed and is connected through bearing activity disassembly nut (8) of draw -in shaft (2) outside, and disassembly nut (8) is equipped in draw -in shaft (2) outside, and draw -in shaft (2) outer wall is connected with disassembly nut (8) inside thread.
4. A clutch input shaft bearing puller according to claim 2, wherein: Two flange support rods (7) between being equipped with square fixed part; The square fixed part includes the front plate (9) and rear plate (10) fixed together by bolt, the front plate (9) is located at the front side of rear plate (10), and the front plate (9) and rear plate (10) are sleeved on the front and back sides of draw -in shaft (2) respectively.
5. A clutch input shaft bearing puller according to claim 2, wherein: The expansion gap (4) inside located in the front side of draw -in shaft (2) is installed with the indicator plate (11), and the indicator plate (11) is located at the top of lower flange (6).
6. A clutch input shaft bearing puller according to claim 5, wherein: The front side of indicator plate (11) is equipped with scale board (12), and scale board (12) bottom end is fixed together with lower flange (6) top.