Bearing inner ring dismounting tool

Abstract

The utility model discloses a bearing inner ring dismounting tool which comprises an inverted U-shaped dismounting frame, the upper top wall of the U-shaped dismounting frame is in threaded connection with a dismounting screw rod, the lower end of the dismounting screw rod is provided with a top block, the upper end of the dismounting screw rod is provided with a force application rod, and the lower portions of two side arms of the U-shaped dismounting frame are in threaded connection with adjusting screw rods. The inner end of the adjusting screw rod is rotationally connected with a dismounting plate, a semicircular bearing clamping table is arranged on the side, away from the adjusting screw rod, of the dismounting plate, and a protection pad is arranged on the end face of the inner edge of the bearing clamping table. The utility model has the beneficial effects that through the arrangement of the semicircular clamping platform, the contact area with the bearing inner ring is larger, and the stability is better. The protection pad can effectively prevent the semicircular clamping table from being in contact with the matching shaft, and the situation that the matching shaft is damaged during disassembly is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of bearing disassembly equipment, and in particular to a bearing inner ring disassembly fixture. Background Technology

[0002] Bearings are components that fix and reduce the coefficient of friction in mechanical transmission processes, used to lower the friction coefficient during power transmission and maintain the fixed position of the shaft center. Bearings are prone to damage during long-term operation. After damage, the outer ring and balls are generally easy to remove, but the inner ring of the bearing, because it is often interference-fitted with the mating shaft, has a relatively small force point when disassembling with a traditional puller, resulting in low disassembly efficiency and easy damage to the mating shaft. Utility Model Content

[0003] The purpose of this invention is to provide a bearing inner ring disassembly tool to solve the problems mentioned in the background art.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A bearing inner ring disassembly fixture includes an inverted U-shaped disassembly frame. The upper top wall of the U-shaped disassembly frame is threaded with a disassembly screw. The lower end of the disassembly screw is provided with a top block, and the upper end of the disassembly screw is provided with a force-applying rod. The lower parts of both arms of the U-shaped disassembly frame are threaded with adjusting screws. The inner end of the adjusting screw is rotatably connected to a disassembly plate. A semi-circular bearing retainer is provided on the side of the disassembly plate away from the adjusting screw. A protective pad is provided on the inner edge end face of the bearing retainer.

[0006] Furthermore, the disassembly plate is provided with limit guide rods on both sides of the adjusting screw, and the side arm of the U-shaped disassembly frame is provided with guide holes adapted to the limit guide rods.

[0007] Furthermore, the length of the limit guide rod is less than the length of the adjusting screw, and the outer end of the adjusting screw is equipped with an adjusting handwheel.

[0008] Furthermore, a positioning groove is provided on the upper surface of the disassembly plate, and the positioning groove passes through the mating end face of the disassembly plate. A positioning rod is hinged in the positioning groove of one disassembly plate, and a positioning block is provided on the lower end face of the positioning rod. A positioning groove adapted to the positioning block is provided in the positioning groove of the other disassembly plate.

[0009] Furthermore, the lower end of the side arm of the U-shaped disassembly frame is provided with a support platform that is adapted to the disassembly plate, and the support platform is integrally formed with the side arm.

[0010] Furthermore, the upper end of the disassembly screw is provided with a connecting block, and the connecting block has a horizontal through hole, through which the force-applying rod is movably inserted.

[0011] This utility model has the following advantages:

[0012] 1. The semi-circular mounting plate provides a larger contact area with the inner ring of the bearing, resulting in better stability.

[0013] 2. The protective pads effectively prevent the semi-circular mounting plate from contacting the mating shaft, thus avoiding damage to the mating shaft during disassembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a top view of the two disassembled panels when they are against each other.

[0016] Figure 3 This is a partial cross-sectional view of the two disassembly plates when they are in contact.

[0017] In the diagram, 1-U-shaped disassembly frame, 2-disassembly screw, 3-top block, 4-force rod, 5-adjusting screw, 6-disassembly plate, 7-bearing clamp, 8-protective pad, 9-limiting guide rod, 10-positioning groove, 11-positioning rod, 12-positioning block, 13-positioning slot, 14-support platform, 15-connecting block, 16-adjusting handwheel. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] refer to Figure 1-3 As shown, one embodiment of this utility model is as follows:

[0025] A bearing inner ring disassembly fixture includes an inverted U-shaped disassembly frame 1. A disassembly screw 2 is threadedly connected to the upper top wall of the U-shaped disassembly frame 1. A top block 3 is provided at the lower end of the disassembly screw 2. A force-applying rod 4 is provided at the upper end of the disassembly screw 2. Adjusting screws 5 are threadedly connected to the lower parts of both arms of the U-shaped disassembly frame 1. A disassembly plate 6 is rotatably connected to the inner end of the adjusting screw 5. A semi-circular bearing retainer 7 is provided on the side of the disassembly plate 6 away from the adjusting screw 5. A protective pad 8 is provided on the inner edge end face of the bearing retainer 7.

[0026] The disassembly plate 6 is moved using the adjusting screw 5, resulting in a simple structure and convenient operation. In use, the top block 3 abuts against the end face of the mating shaft. Then, rotating the adjusting screw 5 brings the two disassembly plates 6 closer together, causing the bearing retainer 7 to engage under the inner ring of the bearing to be disassembled. The force rod 4 then rotates the disassembly screw 2, disengaging the inner ring of the bearing retainer from the mating shaft, thus achieving disassembly. The semi-circular retainer 7 provides a larger contact area with the inner ring of the bearing, resulting in better stability. The protective pad 8 effectively prevents the semi-circular retainer from contacting the mating shaft, avoiding damage to the mating shaft during disassembly.

[0027] In practice, the protective pad 8 and the inner edge of the bearing holder 7 are fixed with adhesive to facilitate replacement and maintenance.

[0028] Limiting guide rods 9 are provided on both sides of the adjusting screw 5 on the disassembly plate 6, and guide holes adapted to the limiting guide rods 9 are provided on the side arm of the U-shaped disassembly frame 1.

[0029] The limiting guide rod 9, in conjunction with the guide hole, guides the movement of the disassembly plate. In practice, the limiting guide rod can be positioned close to the outer side of the disassembly plate 6 to improve stability during disassembly.

[0030] The length of the limit guide rod 9 is less than the length of the adjusting screw 5, and the outer end of the adjusting screw 5 is provided with an adjusting handwheel 16.

[0031] The length of the limit guide rod 9 is less than the length of the adjusting screw 5 to avoid affecting the operation of the adjusting handwheel. The adjusting handwheel 16 is used, which has a smaller size and is easier to implement.

[0032] Furthermore, to improve disassembly efficiency, a positioning groove 10 is provided on the upper end face of the disassembly plate 6. The positioning groove 10 passes through the mating end face of the disassembly plate 6. A positioning rod 11 is hinged in the positioning groove 10 of one disassembly plate 6. A positioning block 12 is provided on the lower end face of the positioning rod 11. A positioning groove 13 adapted to the positioning block is provided in the positioning groove 10 of the other disassembly plate 6.

[0033] When the two disassembly plates 6 are in contact with each other, the positioning block 12 on the positioning rod 11 can smoothly engage into the positioning groove 13. During implementation, first adjust one side of the disassembly plate 6 so that its protective pad engages with the shaft; then adjust the other side of the disassembly plate 6. During this adjustment, the positioning rod 11 can be flipped, and the positioning block 12 can smoothly engage into the positioning groove 13, meaning its protective pad engages with the shaft. This allows the operator to easily judge the contact condition of the two disassembly plates 6, ensuring that the assembly formed by the two disassembly plates 6 is as coaxial as possible with the inner ring of the bearing, thus improving disassembly efficiency.

[0034] Furthermore, the lower end of the side arm of the U-shaped disassembly frame 1 is provided with a support platform 14 adapted to the disassembly plate 6, and the support platform 14 is integrally formed with the side arm.

[0035] The support platform 14 can improve the stability during disassembly and reduce the load on the adjusting screw 5 and the limit guide column.

[0036] The upper end of the disassembly screw 2 is provided with a connecting block 15, and the connecting block 15 has a horizontal through hole, through which the force-applying rod 4 is movably inserted.

[0037] The connecting block 15 and the horizontal through hole are set up so that the force rod 4 can be adjusted to move on the horizontal through hole, thereby reducing the labor intensity of the operator by utilizing the lever principle.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bearing inner ring disassembly fixture, characterized in that: The device includes an inverted U-shaped disassembly frame. The top wall of the U-shaped disassembly frame is threaded with a disassembly screw. The lower end of the disassembly screw is provided with a top block, and the upper end of the disassembly screw is provided with a force-applying rod. The lower parts of both arms of the U-shaped disassembly frame are threaded with adjusting screws. The inner end of the adjusting screw is rotatably connected to a disassembly plate. The side of the disassembly plate opposite to the adjusting screw has a semi-circular bearing holder. The inner edge of the bearing holder has a protective pad.

2. The bearing inner ring disassembly fixture according to claim 1, characterized in that: The disassembly plate is provided with limiting guide rods on both sides of the adjusting screw, and the side arm of the U-shaped disassembly frame is provided with guide holes adapted to the limiting guide rods.

3. The bearing inner ring disassembly fixture according to claim 2, characterized in that: The length of the limiting guide rod is less than the length of the adjusting screw, and the outer end of the adjusting screw is provided with an adjusting handwheel.

4. The bearing inner ring disassembly fixture according to claim 1, characterized in that: The upper surface of the disassembly plate is provided with a positioning groove, which passes through the mating end face of the disassembly plate. A positioning rod is hinged in the positioning groove of one of the disassembly plates, and a positioning block is provided on the lower end face of the positioning rod. A positioning groove adapted to the positioning block is provided in the positioning groove of the other disassembly plate.

5. A bearing inner ring disassembly fixture according to claim 1, characterized in that: The lower end of the side arm of the U-shaped disassembly frame is provided with a support platform adapted to the disassembly plate, and the support platform is integrally formed with the side arm.

6. The bearing inner ring disassembly fixture according to claim 1, characterized in that: The upper end of the disassembly screw is provided with a connecting block, the connecting block has a horizontal through hole, and the force-applying rod is movably inserted through the horizontal through hole.

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