A bearing assembly structure for a rotating shaft of an electric motor

Abstract

The utility model discloses a bearing assembly structure for motor rotating shaft, it includes: motor casing, bearing and gasket, the motor casing front end is provided with the apron, the apron middle part is provided with the through -hole, the apron back is provided with the mounting sleeve concentric with the through -hole, the bearing sets up in the mounting sleeve, the gasket sets up in the mounting sleeve and is located the front of bearing, the gasket back edge is provided with a circle and the convex rib of bearing front edge contact, the apron front recess is provided with the insertion hole of the direction convex rib. The utility model discloses the bearing assembly structure for motor rotating shaft, passes through the mounting sleeve and the bearing interference fit, has promoted bearing assembly convenience and structural stability, when disassembling, inserts the multiple pressure rod into different insertion holes, utilizes the presser simultaneously to carry out the down pressure of multiple pressure rod, can utilize the convex rib and export bearing downward, avoided the problem of knocking damage motor casing.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a bearing assembly structure for a motor shaft. Background Technology

[0002] To improve the rotational stability of the motor shaft, bearings are usually installed in the motor housing to support the shaft's rotation, reduce friction, and lower energy consumption.

[0003] The installation of bearings in the motor housing requires the design of corresponding mounting holes. An interference fit is used to fix the bearing in the mounting holes, resulting in structural stability, but increasing the difficulty of disassembly. When a bearing needs replacement due to damage, it usually requires multiple taps to remove it, which is cumbersome and can easily damage the motor housing during the process. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a bearing assembly structure for motor shafts, which improves the convenience of bearing assembly and disassembly operations.

[0005] To achieve this objective, the present invention adopts the following technical solution: An assembly structure for a bearing for a motor shaft includes: a motor housing, a bearing, and a gasket. The front end of the motor housing is provided with a cover plate, the middle of the cover plate is provided with a through hole, the back of the cover plate is provided with a mounting sleeve concentric with the through hole, the bearing is disposed in the mounting sleeve, the gasket is disposed in the mounting sleeve and located in front of the bearing, the back edge of the gasket is provided with a raised rib that contacts the front edge of the bearing, and the front of the cover plate is recessed with an insertion hole pointing to the raised rib.

[0006] The motor housing, cover plate, and mounting sleeve are integrated into one structure.

[0007] The sockets are arranged in a ring array on the cover plate.

[0008] The mounting sleeve is provided with a retaining ring located on the back of the bearing.

[0009] The inner wall of the mounting sleeve is recessed with an annular groove corresponding to the retaining spring.

[0010] The gasket and the rib are made of an integrated steel structure.

[0011] The bearing is a ball bearing, and the rib is in contact with the outer ring of the ball bearing.

[0012] The beneficial effects of this utility model are as follows: A bearing assembly structure for a motor shaft improves the ease of bearing assembly and structural stability by using an interference fit between the mounting sleeve and the bearing. During disassembly, multiple pressure rods are inserted into different holes, and the press is used to press down on the multiple pressure rods simultaneously. The bearing can then be pushed out downwards by the protruding ribs, avoiding the problem of damaging the motor housing by knocking. The operation is quick and safe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 The left view; Figure 3 yes Figure 2 A magnified view of part A in the middle. Detailed Implementation

[0014] The following is combined Figures 1-3 The technical solution of this utility model will be further illustrated through specific embodiments.

[0015] like Figure 1 and Figure 3 The motor shaft bearing assembly structure shown includes: a motor housing 1, a bearing 8 and a gasket 6. The front end of the motor housing 1 is provided with a cover plate 2, and the middle of the cover plate 2 is provided with a through hole 4 to facilitate the passage of the motor shaft.

[0016] The back of the cover plate 2 is provided with a mounting sleeve 5 concentric with the through hole 4. In this embodiment, the motor housing 1, the cover plate 2 and the mounting sleeve 5 adopt an integrated structure with high stability. They can be made of cast iron or cast aluminum, which is flexible in selection.

[0017] The bearing 8 is housed in the mounting sleeve 5. In this embodiment, the bearing 8 and the mounting sleeve 5 are interference-fitted, resulting in a stable structure. Furthermore, the mounting sleeve 5 is equipped with a retaining spring 10 located on the back of the bearing 8 to prevent the bearing 8 from shifting backward and becoming loose, ensuring high reliability.

[0018] like Figure 3 As shown, the inner wall of the mounting sleeve 5 is recessed with an annular groove 9 corresponding to the retaining spring 10. The retaining spring 10 is positioned by the annular groove 9, which facilitates assembly. If the bearing 8 is damaged, the retaining spring 10 is removed first, and then the bearing 8 is replaced.

[0019] The gasket 6 is placed in the mounting sleeve 5 and located in front of the bearing 8. The back edge of the gasket 6 is provided with a raised rib 7 that contacts the front edge of the bearing 8. In this embodiment, the bearing 8 is a ball bearing. The raised rib 7 contacts the front of the outer ring of the ball bearing and does not contact the inner ring of the ball bearing, thus avoiding adverse effects on the rotation of the inner ring of the ball bearing.

[0020] In this embodiment, the gasket 6 and the rib 7 are made of an integrated steel structure, which has high strength and can limit the outer ring of the ball bearing from the front.

[0021] To facilitate the disassembly of a damaged bearing 8, a recessed insertion hole 3 pointing towards the raised rib 7 is provided on the front side of the cover plate 2, such as... Figure 2 As shown, the four insertion holes 3 are arranged in a circular array on the cover plate 2 and are evenly distributed. During disassembly, the four pressure rods are inserted into different insertion holes 3, and the press is used to press down multiple pressure rods at the same time. The bearing 8 can be pushed out downward by the ribs 7, avoiding the problem of damaging the motor housing 1 by knocking. The operation is quick and the disassembly process is safer.

[0022] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A bearing assembly structure for a motor shaft, characterized in that, include: The motor housing comprises a motor housing, a bearing, and a gasket. The motor housing has a cover plate at its front end, a through hole in the middle of the cover plate, and a mounting sleeve concentric with the through hole on the back of the cover plate. The bearing is mounted in the mounting sleeve, and the gasket is mounted in the mounting sleeve and located in front of the bearing. The back edge of the gasket has a raised rib that contacts the front edge of the bearing. The front of the cover plate has a recessed insertion hole pointing towards the raised rib.

2. The bearing assembly structure for a motor shaft according to claim 1, characterized in that, The motor housing, cover plate, and mounting sleeve adopt an integrated structure.

3. The bearing assembly structure for a motor shaft according to claim 1, characterized in that, The sockets are arranged in a ring array on the cover plate.

4. The bearing assembly structure for a motor shaft according to claim 1, characterized in that, The mounting sleeve is equipped with a retaining ring located on the back of the bearing.

5. The bearing assembly structure for a motor shaft according to claim 4, characterized in that, The inner wall of the mounting sleeve is recessed with an annular groove corresponding to the retaining spring.

6. The bearing assembly structure for a motor shaft according to claim 1, characterized in that, The gasket and the rib are made of an integrated steel structure.

7. The bearing assembly structure for a motor shaft according to claim 1, characterized in that, The bearing is a ball bearing, and the rib is in contact with the outer ring of the ball bearing.

8. The bearing assembly structure for a motor shaft according to claim 1, characterized in that, The bearing is interference-fitted with the mounting sleeve.

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