Bearing dismounting baffle assembly

Abstract

The utility model belongs to the technical field of bearing dismounting structures, and particularly relates to a bearing dismounting baffle assembly, which comprises a rotor shaft and an angular contact ball bearing sleeved on the end part of the rotor shaft, and the end part of the rotor shaft is provided with a shaft shoulder surface for axially limiting the inner ring of the angular contact ball bearing. The rotor shaft between the angular contact ball bearing and the shaft shoulder surface is sleeved with a bearing baffle, the outer end face of the bearing baffle abuts against the inner ring end face of the angular contact ball bearing, and the inner end face of the bearing baffle extends out of the shaft shoulder surface in the radial direction and is used for abutting against a positioning surface of a dismounting tool. The pressing end of the dismounting tool abuts against the end face of the corresponding end of the rotor shaft. The device is simple in structure, reasonable in design and low in cost, axial acting force is intensively applied to the inner ring of the angular contact ball bearing through the bearing baffle, the inner ring and the outer ring of the angular contact ball bearing can be effectively prevented from being damaged during disassembly, and meanwhile it can be guaranteed that a bearing position matched with the angular contact ball bearing is not damaged.

Description

Technical field:

[0001] The utility model belongs to the technical field of bearing disassembly structures, in particular to a bearing disassembly baffle assembly. Background technology:

[0002] At present, the angular contact ball bearings mounted on the rotor shaft need to be arranged according to the relative axial force direction of the bearings. Since the angular contact ball bearings are high-speed precision bearings, the rotor shaft and the angular contact ball bearings fit very tightly. When disassembling and replacing the angular contact ball bearings, a disassembly force opposite to the axial force direction needs to be applied to the angular contact ball bearings. As a result, the outer ring of the angular contact ball bearings is easily axially moved relative to its inner ring due to the force, resulting in the outer ring of the angular contact ball bearings being separated from the inner ring and being damaged. Summary of the invention:

[0003] The utility model aims to provide a bearing disassembly baffle assembly, which adopts a bearing baffle to concentrate the axial force on the inner ring of the angular contact ball bearing, and can effectively avoid damage to the inner and outer rings of the angular contact ball bearing during disassembly.

[0004] The utility model is achieved in this way:

[0005] A bearing disassembly baffle assembly includes a rotor shaft and an angular contact ball bearing sleeved on the end of the rotor shaft, the end of the rotor shaft has a shoulder surface for axially limiting the inner ring of the angular contact ball bearing, and a bearing baffle is sleeved on the rotor shaft between the angular contact ball bearing and the shoulder surface, the outer end surface of the bearing baffle abuts against the inner ring end surface of the angular contact ball bearing, the inner end surface radially extends outward from the shoulder surface and is used to abut against the positioning surface of a disassembly tool, and the pressing end of the disassembly tool abuts against the corresponding end surface of the rotor shaft.

[0006] In the above-mentioned bearing disassembly baffle assembly, the outer wall surface of the bearing baffle is a step structure, and includes a small ring portion and a large ring portion from the outside to the inside. The outer diameter of the small ring portion is less than or equal to the outer diameter of the inner ring of the angular contact ball bearing, and the outer diameter of the large diameter portion is greater than the outer diameter of the shaft shoulder surface.

[0007] In the above-mentioned bearing disassembly baffle assembly, the disassembly tool includes a U-shaped chuck, the rotor shaft penetrates and fits between the two side arms of the U-shaped chuck, and the positioning surface is the outer end surface of the U-shaped chuck.

[0008] In the above-mentioned bearing disassembly baffle assembly, more than two angular contact ball bearings are axially arranged continuously on the same end of the rotor shaft, and the axial load directions of the angular contact ball bearings on the same end of the rotor shaft are all arranged in the same direction.

[0009] The outstanding advantages of the utility model compared with the prior art are:

[0010] The utility model has a simple structure, reasonable design and low cost. The bearing baffle is used to concentrate the axial force on the inner ring of the angular contact ball bearing, which can effectively avoid damage to the inner and outer rings of the angular contact ball bearing during disassembly. At the same time, it can also ensure that the bearing position matched with the angular contact ball bearing is not damaged. Description of the drawings:

[0011] Figure 1 This is a diagram of the matching structure of the rotor shaft and the angular contact ball bearing of the utility model;

[0012] Figure 2 It is a matching structure diagram of the utility model during disassembly tooling operation.

[0013] In the figure: 1. rotor shaft; 2. angular contact ball bearing; 3. shaft shoulder surface; 4. bearing baffle; 5. lower pressure end; 6. U-shaped chuck. Specific implementation method:

[0014] The present invention is further described below with reference to specific embodiments. Figure 1 —2:

[0015] A bearing disassembly baffle assembly includes a rotor shaft 1 and an angular contact ball bearing 2 sleeved on the end of the rotor shaft 1, the end of the rotor shaft 1 having a shoulder surface 3 for axially limiting the inner ring of the angular contact ball bearing 2, a bearing baffle 4 sleeved on the rotor shaft 1 between the angular contact ball bearing 2 and the shoulder surface 3, the outer end surface of the bearing baffle 4 abuts against the inner ring end surface of the angular contact ball bearing 2, the inner end surface radially extends outward from the shoulder surface 3 and is used to abut against the positioning surface of a disassembly tool, and the lower pressing end 5 of the disassembly tool abuts against the corresponding end surface of the rotor shaft 1.

[0016] The utility model has a simple structure, reasonable design and low cost. The bearing baffle 4 is used to concentrate the axial force on the inner ring of the angular contact ball bearing 2, which can effectively avoid damage to the inner and outer rings of the angular contact ball bearing 2 during disassembly. At the same time, it can also ensure that the bearing position that cooperates with the angular contact ball bearing 2 is not damaged.

[0017] Among them, the bearing baffle 4 can be a frustum structure, and in the present embodiment, the outer wall surface of the bearing baffle 4 is a step structure, and includes a small ring portion and a large ring portion from the outside to the inside, the outer diameter of the small ring portion is less than or equal to the outer diameter of the inner ring of the angular contact ball bearing 2, and the outer diameter of the large diameter portion is greater than the outer diameter of the shaft shoulder surface 3.

[0018] Furthermore, in order to make the positioning surface of the disassembly tool effectively act on the inner end surface of the bearing baffle 4, the disassembly tool includes a U-shaped chuck 6, the rotor shaft 1 is inserted and fitted between the two side arms of the U-shaped chuck 6, and the positioning surface is the outer end surface of the U-shaped chuck 6.

[0019] Furthermore, in this embodiment, more than two angular contact ball bearings 2 are axially and continuously arranged on the same end of the rotor shaft 1, and the axial load directions of the angular contact ball bearings 2 on the same end of the rotor shaft 1 are all arranged in the same direction.

[0020] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A bearing disassembly baffle assembly, comprising a rotor shaft (1), and an angular contact ball bearing (2) sleeved on the end of the rotor shaft (1), the end of the rotor shaft (1) having a shoulder surface (3) for axially limiting the inner ring of the angular contact ball bearing (2), characterized in that: A bearing baffle (4) is mounted on the rotor shaft (1) between the angular contact ball bearing (2) and the shaft shoulder surface (3); the outer end surface of the bearing baffle (4) abuts against the inner ring end surface of the angular contact ball bearing (2); the inner end surface extends radially outward from the shaft shoulder surface (3) and is used to abut against the positioning surface of a disassembly tool; the pressing end (5) of the disassembly tool abuts against the corresponding end surface of the rotor shaft (1).

2. A bearing disassembly baffle assembly according to claim 1, characterized in that: The outer wall surface of the bearing baffle (4) is a step structure and includes a small ring portion and a large ring portion from the outside to the inside, the outer diameter of the small ring portion is less than or equal to the outer diameter of the inner ring of the angular contact ball bearing (2), and the outer diameter of the large diameter portion is greater than the outer diameter of the shaft shoulder surface (3).

3. A bearing disassembly baffle assembly according to claim 1, characterized in that: The disassembly tool comprises a U-shaped chuck (6), the rotor shaft (1) penetrates and fits between two side arms of the U-shaped chuck (6), and the positioning surface is the outer end surface of the U-shaped chuck (6).

4. A bearing disassembly baffle assembly according to claim 1, characterized in that: More than two angular contact ball bearings (2) are axially and continuously arranged on the same end of the rotor shaft (1), and the axial load directions of the angular contact ball bearings (2) on the same end of the rotor shaft (1) are all arranged in the same direction.

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