Bearing dismounting tool

Abstract

The utility model discloses a bearing dismounting tool, which relates to the technical field of bearing dismounting, and comprises a fixed plate, a connecting pipe is coaxially in threaded connection with a threaded rod, a sliding cylinder is arranged below the fixed plate, a connecting cylinder is sleeved between the sliding cylinder and a top block, a convex block is fixedly connected on the inner wall of the connecting cylinder, and the convex block is in sliding connection in a groove. Two connecting blocks are fixedly connected to the side, away from the sliding cylinder, of the connecting cylinder, sliding plates are slidably connected into the connecting blocks, clamping plates are fixedly connected to the sides, away from the connecting cylinder, of the sliding plates, and clamping heads are fixedly connected to the lower ends of the clamping plates. A threaded rod is rotated to drive a sliding cylinder to descend; the threaded rod drives the sliding cylinder to rotate, so that a convex block slides in a groove, a connecting cylinder is driven to ascend, the bearing outer ring is driven to ascend through the clamping plate, and a top block downwards pushes a shaft body; and meanwhile, opposite force is applied to the bearing, so that the separation of the bearing outer ring and the shaft body is accelerated.

Description

Technical Field

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

[0002] Bearings are an important component in modern mechanical equipment. They can be divided into two main categories: sliding friction bearings and rolling friction bearings. The shaft provides support for the bearing. Each type of bearing has its unique structure. Bearing disassembly is carried out during regular bearing maintenance or replacement.

[0003] A search revealed Chinese patent publication number CN222386854U, which discloses a bearing disassembly tool. This patent adjusts the length of the pull rod by adjusting the relative position between the first and second rods, and then uses a locking device to lock the positions of the first and second rods, allowing the hook to extend to different depths. This device has certain problems: during disassembly, it is necessary to hold the support arm, and after the hook is inserted into the device, it is necessary to manually control it to keep the hook hooked on the outer ring end face of the bearing until the screw abuts against the shaft. The disassembly process is relatively laborious and affects the disassembly efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a bearing disassembly tool to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A bearing disassembly tool includes a fixed plate, symmetrical auxiliary rods fixedly connected to the lower ends of both sides of the fixed plate, a counterweight plate fixed to the lower end of the auxiliary rods, a connecting pipe rotatably connected to the fixed plate, a limiting component between the connecting pipe and the fixed plate, a threaded rod coaxially threaded to the connecting pipe, a sliding cylinder provided below the fixed plate, an extension mechanism provided between the sliding cylinder and the threaded rod, and a transmission mechanism provided on the sliding cylinder.

[0007] The transmission mechanism includes a connecting cylinder, which is sleeved on the lower end of the sliding cylinder. A protrusion is fixedly connected to the inner wall of the connecting cylinder. A groove is opened on the sliding cylinder, and the groove is spiral-shaped. The protrusion is slidably connected in the groove. Two connecting blocks are fixedly connected to the connecting cylinder. The two connecting blocks are symmetrical along the radial direction of the connecting cylinder. A telescopic guide rod is installed on the upper end of one connecting block. A sliding plate is slidably connected inside the connecting block. A clamping plate is fixed to the end of the sliding plate away from the connecting cylinder. A clamping head is fixedly connected to the lower end of the clamping plate near the sliding cylinder.

[0008] Preferably, the sliding plate is T-shaped, and a limit knob is threadedly connected to the upper end of the connecting block. The limit knob is located at the end of the connecting block away from the sliding cylinder, and the limit knob abuts against the sliding plate.

[0009] Preferably, the extension mechanism includes a fixed post, which is fixedly connected to the lower end of the threaded rod. The front end of the fixed post has multiple threaded holes, which are arranged at equal intervals along the fixed post.

[0010] Preferably, the sliding cylinder is slidably connected to the fixed column, and a locking knob is threadedly connected to the front end of the sliding cylinder, with the locking knob located at the upper end of the sliding cylinder.

[0011] Preferably, multiple limiting strips are fixedly connected to both sides of the fixed column, and the multiple limiting strips are symmetrical along the radial direction of the fixed column.

[0012] Preferably, the limiting component includes a limiting block, which is slidably connected to the front end of the connecting pipe, and the lower end of the limiting block is embedded in the fixing plate.

[0013] Preferably, a rocker arm is fixedly connected to the upper end of the threaded rod.

[0014] The beneficial effects are as follows: the counterweight plate abuts against the surface of the equipment, the clamping plate hooks the lower end face of the outer ring of the bearing, the rotating threaded rod drives the sliding cylinder to descend, the threaded rod drives the sliding cylinder to rotate, causing the protrusion to slide in the groove, driving the connecting cylinder to rise and driving the outer ring of the bearing to rise through the clamping plate, the top block pushes the shaft body downward, and at the same time applies opposing forces to the bearing, accelerating the separation of the outer ring of the bearing from the shaft body.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of a bearing disassembly tool according to the present invention;

[0018] Figure 2 This is a front view of a bearing disassembly tool according to the present invention;

[0019] Figure 3 This is a cross-sectional view of a bearing disassembly tool according to this utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of point A.

[0021] The reference numerals in the attached drawings are explained as follows: 101, fixing plate; 102, connecting pipe; 103, threaded rod; 201, fixing column; 202, limiting strip; 203, threaded hole; 301, sliding cylinder; 302, locking knob; 401, connecting cylinder; 402, protrusion; 403, groove; 404, connecting block; 405, clamping plate; 501, sliding plate; 502, limiting knob; 601, auxiliary rod; 602, counterweight plate; 7, rocker arm; 8, limiting block. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation 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.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-4 As shown, a bearing disassembly tool includes a fixed plate 101. Symmetrical auxiliary rods 601 are fixedly connected to the lower ends of both sides of the fixed plate 101. A counterweight plate 602 is fixed to the lower end of the auxiliary rods 601. A connecting pipe 102 is rotatably connected to the fixed plate 101. A limiting component is provided between the connecting pipe 102 and the fixed plate 101. A threaded rod 103 is coaxially threadedly connected to the connecting pipe 102. A sliding cylinder 301 is provided below the fixed plate 101. An extension mechanism is provided between the sliding cylinder 301 and the threaded rod 103. A transmission mechanism is provided on the sliding cylinder 301.

[0026] The transmission mechanism includes a connecting cylinder 401, which is sleeved on the lower end of the sliding cylinder 301. A protrusion 402 is fixedly connected to the inner wall of the connecting cylinder 401. A groove 403 is opened on the sliding cylinder 301, and the groove 403 is spiral-shaped. The protrusion 402 is slidably connected in the groove 403. Two connecting blocks 404 are fixedly connected to the connecting cylinder 401. The two connecting blocks 404 are radially symmetrical along the connecting cylinder 401. A telescopic guide rod is installed on the upper end of one connecting block 404. A sliding plate 501 is slidably connected inside the connecting block 404. A clamping plate 405 is fixedly connected to the end of the sliding plate 501 away from the connecting cylinder 401. A clamping head is fixedly connected to the lower end of the clamping plate 405 near the sliding cylinder 301. The distance is adjusted by the extension mechanism. After separation, the sliding cylinder 301 is inserted into the equipment, the fixing plate 101 is placed on the equipment surface, the counterweight plate 602 abuts against the equipment surface, and the clamping plate 405 hooks the lower end face of the bearing outer ring through the chuck. Then, the threaded rod 103 is rotated to drive the sliding cylinder 301 to rotate, so that the protrusion 402 slides in the groove 403. The telescopic guide rod limits the movement direction of the connecting cylinder 401, drives the connecting cylinder 401 to rise axially along the sliding cylinder 301, and drives the bearing outer ring to rise through the clamping plate 405. At the same time, the threaded rod 103 and the connecting pipe 102 are threaded together to drive the sliding cylinder 301 to fall, so that the lower end of the sliding cylinder 301 presses against the shaft, thereby applying opposing forces to the bearing at the same time, accelerating the separation of the bearing outer ring from the shaft.

[0027] The sliding plate 501 is T-shaped. The upper end of the connecting block 404 is threaded with a limit knob 502. The limit knob 502 is located at the end of the connecting block 404 away from the sliding cylinder 301. The limit knob 502 abuts against the sliding plate 501. The distance between the clamping plate 405 and the connecting block 404 is adjusted according to the bearings of different diameters, so that the sliding plate 501 slides against the connecting block 404. Then, the limit knob 502 is rotated to fix the position of the sliding plate 501.

[0028] The extension mechanism includes a fixed post 201, which is fixedly connected to the lower end of the threaded rod 103. The front end of the fixed post 201 has multiple threaded holes 203, which are arranged at equal intervals along the fixed post 201.

[0029] The sliding cylinder 301 is slidably connected to the fixed column 201. The front end of the sliding cylinder 301 is threaded with a locking knob 302. The locking knob 302 is located at the upper end of the sliding cylinder 301. When the bearing to be disassembled is located inside the equipment, adjust the position of the sliding cylinder 301 so that the sliding cylinder 301 is away from the fixed plate 101. Then rotate the locking knob 302 so that the locking knob 302 is threadedly connected to the corresponding threaded hole 203, thereby fixing the distance between the sliding cylinder 301 and the fixed plate 101.

[0030] Multiple limiting strips 202 are fixedly connected to both sides of the fixed column 201, and the multiple limiting strips 202 are radially symmetrical along the fixed column 201.

[0031] The limiting component includes a limiting block 8, which is slidably connected to the front end of the connecting pipe 102. The lower end of the limiting block 8 is embedded in the fixing plate 101. When the lower end of the sliding cylinder 301 abuts against the shaft, the limiting block 8 is pulled upward, so that the threaded rod 103 continues to drive the connecting pipe 102 to rotate. At this time, the sliding cylinder 301 does not continue to descend.

[0032] A rocker arm 7 is fixedly connected to the upper end of the threaded rod 103.

[0033] Working principle: During use, adjust the distance between the clamping plate 405 and the connecting block 404 according to the bearing diameter, so that the sliding plate 501 slides against the connecting block 404. Then, rotate the limit knob 502 to fix the position of the sliding plate 501. When the bearing to be disassembled is inside the equipment, adjust the position of the sliding cylinder 301 so that the sliding cylinder 301 is away from the fixed plate 101. Then, rotate the locking knob 302 to connect the locking knob 302 with the corresponding threaded hole 203, thereby fixing the distance between the sliding cylinder 301 and the fixed plate 101. Then, insert the sliding cylinder 301 into the equipment, place the fixed plate 101 on the equipment surface, so that the counterweight plate 602 abuts against the equipment surface, and the clamping plate 405 passes through the clamp. The head hooks onto the lower end face of the outer ring of the bearing, and then the threaded rod 103 is rotated to drive the sliding cylinder 301 to rotate, causing the protrusion 402 to slide in the groove 403. The telescopic guide rod limits the movement direction of the connecting cylinder 401, driving the connecting cylinder 401 to rise axially along the sliding cylinder 301, and driving the outer ring of the bearing to rise through the clamping plate 405. At the same time, the threaded rod 103 and the connecting pipe 102 are threaded together to drive the sliding cylinder 301 to descend, causing the lower end of the sliding cylinder 301 to press against the shaft. When the lower end of the sliding cylinder 301 abuts against the shaft, the limiting block 8 is pulled upward, so that the threaded rod 103 continues to drive the connecting pipe 102 to rotate. At this time, the sliding cylinder 301 does not continue to descend, thus simultaneously applying opposing forces to the bearing, accelerating the separation of the outer ring of the bearing from the shaft.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing disassembly tool, comprising a fixing plate (101), wherein symmetrical auxiliary rods (601) are fixedly connected to the lower ends of both sides of the fixing plate (101), characterized in that: A counterweight plate (602) is fixed to the lower end of the auxiliary rod (601). A connecting pipe (102) is rotatably connected to the fixed plate (101). A limiting component is provided between the connecting pipe (102) and the fixed plate (101). A threaded rod (103) is coaxially threaded to the connecting pipe (102). A sliding cylinder (301) is provided below the fixed plate (101). An extension mechanism is provided between the sliding cylinder (301) and the threaded rod (103). A transmission mechanism is provided on the sliding cylinder (301). The transmission mechanism includes a connecting cylinder (401), which is sleeved on the lower end of the sliding cylinder (301). A protrusion (402) is fixedly connected to the inner wall of the connecting cylinder (401). A groove (403) is opened on the sliding cylinder (301). The groove (403) is spiral. The protrusion (402) is slidably connected in the groove (403). Two connecting blocks (404) are fixedly connected to the connecting cylinder (401). The two connecting blocks (404) are radially symmetrical along the connecting cylinder (401). A telescopic guide rod is installed on the upper end of one connecting block (404). A sliding plate (501) is slidably connected in the connecting block (404). A clamping plate (405) is fixed at the end of the sliding plate (501) away from the connecting cylinder (401). A clamping head is fixedly connected to the lower end of the clamping plate (405) near the sliding cylinder (301).

2. The bearing disassembly tool according to claim 1, characterized in that: The sliding plate (501) is T-shaped, and the upper end of the connecting block (404) is threaded with a limit knob (502). The limit knob (502) is located at the end of the connecting block (404) away from the sliding cylinder (301), and the limit knob (502) abuts against the sliding plate (501).

3. The bearing disassembly tool according to claim 1, characterized in that: The extension mechanism includes a fixed post (201), which is fixedly connected to the lower end of the threaded rod (103). The front end of the fixed post (201) has multiple threaded holes (203), which are arranged at equal intervals along the fixed post (201).

4. A bearing disassembly tool according to claim 3, characterized in that: The sliding cylinder (301) is slidably connected to the fixed column (201), and a locking knob (302) is threadedly connected to the front end of the sliding cylinder (301). The locking knob (302) is located at the upper end of the sliding cylinder (301).

5. A bearing disassembly tool according to claim 3, characterized in that: Multiple limiting strips (202) are fixedly connected to both sides of the fixed column (201), and the multiple limiting strips (202) are radially symmetrical along the fixed column (201).

6. A bearing disassembly tool according to claim 1, characterized in that: The limiting component includes a limiting block (8), which is slidably connected to the front end of the connecting pipe (102), and the lower end of the limiting block (8) is embedded in the fixing plate (101).

7. A bearing disassembly tool according to claim 1, characterized in that: A rocker arm (7) is fixedly connected to the upper end of the threaded rod (103).

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