Differential bearing dismounting tool

Abstract

The utility model discloses a differential bearing dismounting tool which comprises a base and a clamping ring, and a supporting plate is welded to one side of the top of the base. The clamping rings and the rubber pads are adopted, when the clamping rings move to the outer side of the differential bearing, the second motor operates to drive the second two-way screw to rotate, and then the clamping rings on the two sides abut against the surface position of the differential bearing. Therefore, the clamping ring can fully cover the surface position of the bearing, the overall contact area is enlarged, compared with a traditional point contact mode, pressure can be distributed more evenly, extrusion damage to the bearing during subsequent lifting is reduced, it is guaranteed that the bearing can be used smoothly in the subsequent process, and the service life of the bearing is prolonged. And a rubber pad is further arranged between the clamping ring and the bearing for buffering, so that operation damage can be further reduced, the overall using effect is improved, and the device has the advantages of being small in disassembly damage and uniform in stress.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and more specifically, to a tooling for disassembling differential bearings. Background Technology

[0002] A car differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. It mainly consists of left and right half-shaft gears, two planetary gears, and a gear carrier. When repairing a differential, the bearings need to be removed.

[0003] The existing publicly available technology, application number CN202221509986.1, describes a differential bearing disassembly fixture. In use, a push rod is inserted from the top of the differential, and the bottom of the push rod passes through the differential and the guide tube to connect with a locking mechanism. The locking mechanism is slidably connected in the guide groove. When the push rod is struck downwards, it applies a downward force to the locking mechanism, which in turn moves the bearing downwards, thereby removing the bearing from the differential.

[0004] However, the aforementioned patent still has certain drawbacks in its use: although it can disassemble the differential bearing, the equipment mainly relies on manual labor, which is physically demanding. Moreover, any deviation during the tapping process can damage the differential, affecting its subsequent use. Furthermore, the bearing is only contacted through two sets of protrusions, resulting in a small force-bearing area. This makes it easy for the contact area to deform severely when pressed down, which in turn affects the normal use of the bearing. Overall, the performance is not ideal.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a differential bearing disassembly fixture, which has the advantages of easy operation, minimal disassembly damage, and uniform force distribution, thereby solving the problems mentioned in the background technology.

[0008] (II) Technical Solution

[0009] To achieve the advantages of labor-saving operation, minimal disassembly damage, and uniform force distribution, the specific technical solution adopted by this utility model is as follows:

[0010] A differential bearing disassembly fixture includes a base and a clamping ring. A support plate is welded to one side of the top of the base, and a top plate is welded to one side of the top of the support plate. A first motor is installed at the middle of the top of the top plate. One end of the first motor passes through one side of the top plate and is connected to a drive screw. A threaded sleeve is fitted around the outer circumference of the drive screw. A bearing seat is installed at the bottom of the threaded sleeve. An adjustment groove is opened on one side of the bearing seat. A second bidirectional screw is installed inside the adjustment groove. One end of the second bidirectional screw passes through one side of the bearing seat and is connected to a second motor. Protective sleeves are symmetrically fitted on both sides of the second bidirectional screw. A clamping ring is installed at the bottom of the protective sleeve, and a rubber pad is installed at the top of the clamping ring.

[0011] Furthermore, a first bidirectional screw is installed at the middle position of the top of the base. One end of the first bidirectional screw passes through one side of the base and is connected to the third motor. Clamps are symmetrically sleeved on both sides of the first bidirectional screw.

[0012] Furthermore, a number of limiting blocks are symmetrically welded to one end of the bearing seat, and the limiting blocks are slidably connected to the support plate.

[0013] Furthermore, a limiting groove is provided on the surface of the support plate for the limiting block to slide.

[0014] Furthermore, a groove is provided on the surface of the clamping ring.

[0015] Furthermore, a groove is provided at the top of the clamping ring for installing a rubber pad.

[0016] Furthermore, both the protective cylinder and the clamping ring are made of metal.

[0017] Furthermore, one side of the base is electrically connected to an external control device via a wire.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a differential bearing disassembly fixture, which has the following beneficial effects:

[0020] (1) This utility model uses clamping rings and rubber pads. When the clamping rings move to the outside of the differential bearing, the second motor can drive the second bidirectional screw to rotate, so that the clamping rings on both sides abut against the surface of the differential bearing. Since the structure of the clamping rings is the same as that of the bearing, the clamping rings can fully cover the surface of the bearing, thereby expanding the overall contact area. Compared with the traditional point contact form, the pressure can be distributed more evenly, thereby reducing the squeezing damage to the bearing during subsequent lifting and ensuring that the bearing can be used smoothly in the future. In addition, a rubber pad is provided between the clamping rings and the bearing for buffering, which can further reduce the damage during operation and improve the overall use effect. It has the advantages of small disassembly damage and uniform force distribution.

[0021] (2) This utility model adopts a first motor and a drive screw. The reverse rotation of the first motor can drive the drive screw to rotate in the opposite direction, thereby lifting the entire bearing seat upward, thus realizing the removal of the bearing. Since the operation does not require much manual intervention, it can effectively reduce the labor intensity of personnel. At the same time, it can avoid damage to the differential by hammering, and can be better disassembled and used. It has the advantage of being labor-saving. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the differential bearing disassembly fixture proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the protective cylinder and clamping ring of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the bearing seat and threaded cylinder of this utility model;

[0026] Figure 4 This is a cross-sectional view showing the connection between the threaded cylinder and the drive screw of this utility model.

[0027] In the picture:

[0028] 1. Base; 2. First bidirectional screw; 3. Clamp; 4. Support plate; 5. Limiting groove; 6. Clamping ring; 7. Protective cylinder; 8. Limiting block; 9. Second bidirectional screw; 10. Threaded cylinder; 11. Top plate; 12. First motor; 13. Drive screw; 14. Bearing seat; 15. Second motor; 16. Adjustment groove; 17. Rubber pad; 18. Third motor. Detailed Implementation

[0029] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0030] According to an embodiment of the present invention, a differential bearing disassembly fixture is provided.

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, the differential bearing disassembly fixture according to an embodiment of the present invention includes a base 1 and a clamping ring 6. A support plate 4 is welded to one side of the top of the base 1, and a top plate 11 is welded to one side of the top of the support plate 4. A first motor 12 is installed at the middle of the top of the top plate 11. One end of the first motor 12 passes through one side of the top plate 11 and is connected to a drive screw 13. A threaded cylinder 10 is sleeved on the outer periphery of the drive screw 13. A bearing seat 14 is installed at the bottom of the threaded cylinder 10. An adjustment groove 16 is opened on one side of the bearing seat 14. A second bidirectional screw 9 is installed inside the adjustment groove 16. One end of the second bidirectional screw 9 passes through one side of the bearing seat 14 and is connected to a second motor 15. Protective cylinders 7 are symmetrically sleeved on both sides of the second bidirectional screw 9. A clamping ring 6 is installed at the bottom of the protective cylinder 7, and a rubber pad 17 is installed at the top of the clamping ring 6.

[0032] In one embodiment, a first bidirectional screw 2 is installed at the top center of the base 1. One end of the first bidirectional screw 2 passes through one side of the base 1 and is connected to the third motor 18. Clamps 3 are symmetrically sleeved on both sides of the first bidirectional screw 2. The clamps 3 are set to clamp and fix the differential. Therefore, the structure of the clamps 3 needs to be set according to the structure of the differential, which will not be elaborated here.

[0033] In one embodiment, a number of limiting blocks 8 are symmetrically welded to one end of the bearing seat 14, and the limiting blocks 8 are slidably connected to the support plate 4.

[0034] In one embodiment, a limiting groove 5 is provided on the surface of the support plate 4 for the limiting block 8 to slide. The limiting groove 5 is provided to restrict the movement trajectory of the limiting block 8 and ensure its movement stability.

[0035] In one embodiment, a slot is provided on the surface of the clamping ring 6. The slot is designed to allow the clamping ring 6 to smoothly wrap around the shaft between the differential structure and the bearing, so that the surface of the clamping ring 6 can smoothly abut against the bearing, thereby enabling the bearing to be disassembled. The size of the slot can be set according to the different types of differentials used.

[0036] In one embodiment, a groove is provided at the top of the clamping ring 6 for installing the rubber pad 17. The groove is provided to facilitate the installation of the rubber pad 17.

[0037] In one embodiment, both the protective cylinder 7 and the clamping ring 6 are made of metal. The metal material is used to ensure the strength of the protective cylinder 7 and the clamping ring 6, thereby preventing breakage when disassembling the bearing and ensuring the working effect. Since there are various metal materials and personnel can use them well, they will not be described in detail. The specific material can be adjusted according to the requirements.

[0038] In one embodiment, one side of the base 1 is electrically connected to an external control device via a wire. The external control device is set up to connect to multiple sets of motors via wires and control them through programming. Since there are various types of control devices and the application technology is mature, it will not be described in detail.

[0039] Working Principle: In actual use, the operator can place the differential structure to be processed into the clamp 3 on the surface of the base 1. Then, the operation of the third motor 18 drives the first bidirectional screw 2 to rotate. The opposing rotation causes the clamps 3 to move closer together, thereby clamping the differential structure and ensuring the stability of subsequent operations. The structure of the clamp 3 can be set according to the structure of the differential, which will not be elaborated here. Then, the operation of the first motor 12 drives the drive screw 13 to rotate, which in turn drives the threaded cylinder 10 connected to it to rotate. The threaded cylinder 10 is fixed on the bearing seat 14, so the rotational power of the drive screw 13 can be converted into linear motion power, thereby moving the bearing seat 14 downward as a whole. When the clamping ring 6 moves to the outside of the differential bearing, the operation of the second motor 15 drives the second bidirectional screw 9 to rotate, thereby causing the clamping rings 6 on both sides to abut against the differential. Since the structure of the clamping ring 6 is the same as that of the bearing, the clamping ring 6 can fully cover the surface of the bearing, thereby expanding the overall contact area. Compared with the traditional point contact form, it can distribute the pressure more evenly, thereby reducing the squeezing damage to the bearing during subsequent lifting and ensuring that the bearing can be used smoothly afterward. In addition, a rubber pad 17 is provided between the clamping ring 6 and the bearing for buffering, which can further reduce the damage during operation and improve the overall performance. Then, the reverse rotation of the first motor 12 can drive the drive screw 13 to rotate in the opposite direction, thereby lifting the entire bearing seat 14 upward, thus realizing the removal of the bearing. Since the operation does not require much manual intervention, it can effectively reduce the labor intensity of personnel, and at the same time avoid the damage to the differential caused by hammering. It can be better disassembled and used. The device as a whole has the advantages of easy operation, minimal disassembly damage, and even force distribution.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] 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 differential bearing disassembly fixture, comprising a base (1) and a clamping ring (6), characterized in that, A support plate (4) is welded to one side of the top of the base (1). A top plate (11) is welded to one side of the top of the support plate (4). A first motor (12) is installed in the middle of the top of the top plate (11). One end of the first motor (12) passes through one side of the top plate (11) and is connected to a drive screw (13). A threaded cylinder (10) is sleeved on the outer periphery of the drive screw (13). A bearing seat (14) is installed at the bottom of the threaded cylinder (10). An adjustment groove (16) is opened on one side of the inside of the bearing seat (14). A second bidirectional screw (9) is installed inside the adjustment groove (16). One end of the second bidirectional screw (9) passes through one side of the bearing seat (14) and is connected to a second motor (15). Protective cylinders (7) are symmetrically sleeved on both sides of the second bidirectional screw (9). A clamping ring (6) is installed at the bottom of the protective cylinder (7). A rubber pad (17) is installed at the top of the clamping ring (6).

2. The differential bearing disassembly fixture according to claim 1, characterized in that, A first bidirectional screw (2) is installed at the top center of the base (1). One end of the first bidirectional screw (2) passes through one side of the base (1) and is connected to the third motor (18). Clamps (3) are symmetrically sleeved on both sides of the first bidirectional screw (2).

3. The differential bearing disassembly fixture according to claim 1, characterized in that, The bearing seat (14) has several sets of limiting blocks (8) symmetrically welded to one end, and the limiting blocks (8) are slidably connected to the support plate (4).

4. The differential bearing disassembly fixture according to claim 1, characterized in that, The support plate (4) has a limiting groove (5) on its surface for the sliding of the limiting block (8).

5. The differential bearing disassembly fixture according to claim 1, characterized in that, The clamping ring (6) has a groove on its surface.

6. The differential bearing disassembly fixture according to claim 1, characterized in that, The top of the clamp (6) is provided with a groove for installing the rubber pad (17).

7. The differential bearing disassembly fixture according to claim 1, characterized in that, The protective cylinder (7) and the clamping ring (6) are both made of metal.

8. The differential bearing disassembly fixture according to claim 1, characterized in that, The base (1) is electrically connected to an external control device via a wire on one side.

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