Motor casing bearing assembling structure

Abstract

The utility model provides a motor casing bearing assembly structure, which comprises a motor casing, a bearing installation ring and a ball bearing which are integrally arranged, the bearing installation ring is fixed at the upper end of the motor casing, the upper end of the bearing installation ring is provided with an assembly boss, and the assembly boss corresponds to the inner side of the bearing installation ring and protrudes towards the center of the bearing installation ring. The ball bearing assembling device has the advantages that automatic production can be achieved, the production efficiency is improved, the precision of the automatically-machined assembling bosses is high, the ball bearings can be effectively fixed, the ball bearings are prevented from loosening, and the assembling quality is improved. And abnormal sound of the motor caused by overflow of the glue can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, and particularly relates to a bearing assembly structure of a motor housing. Background Art

[0002] At the end of a motor, bearings are installed. For a micro-motor, the outer circumference of a ball bearing is bonded to the end of the motor housing by glue. However, when using glue bonding, the following problems exist: 1. The process of glue coating is not conducive to automated production, and only the method of manually coating glue one by one and then installing it into the motor housing can be adopted; 2. When manually coating glue, it is difficult to control the amount of glue coated. If there is too much glue, it will overflow into the bearing, affecting the sound during the operation of the motor. If there is too little glue, the bearing will shift and come out. Therefore, it is necessary to make a bearing assembly structure of a motor housing to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a bearing assembly structure of a motor housing to solve the problems mentioned in the background art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A bearing assembly structure of a motor housing includes a motor housing, a bearing mounting ring and a ball bearing which are integrally arranged. The bearing mounting ring is fixed at the upper end of the motor housing. An assembly boss is provided at the upper end of the bearing mounting ring. The assembly boss corresponds to the inner side of the bearing mounting ring and protrudes towards the center of the bearing mounting ring. Multiple groups of assembly bosses are evenly arranged on the bearing mounting ring. The ball bearing corresponds to the inside of the bearing mounting ring, and the inner sides of multiple groups of assembly bosses are all in contact with the ball bearing.

[0006] Further description of the utility model: The bearing mounting ring includes an outer fixing ring, an inner fixing ring and a connecting ring which are integrally arranged. The lower end of the outer fixing ring is fixed at the upper end of the motor housing. The outer circumference of the inner fixing ring is connected to the upper end of the outer fixing ring through the connecting ring. The outer surface of the connecting ring is an arc surface.

[0007] Further description of the utility model: The assembly boss corresponds to the inside of the outer fixing ring.

[0008] Further description of the utility model: A first riveting groove is provided on the outer side of the outer fixing ring. The first riveting groove is recessed towards the center of the outer fixing ring. Multiple groups of first riveting grooves are provided and correspond to multiple groups of assembly bosses one by one.

[0009] Further description of the utility model: The assembly boss corresponds to the inside of the inner fixing ring.

[0010] Further description of the present utility model: A second riveting groove is provided on the upper side of the inner fixing ring. The second riveting groove is recessed towards the lower side of the inner fixing ring. Multiple groups of the second riveting grooves are provided and correspond one by one to multiple groups of assembly bosses.

[0011] Further description of the present utility model: Multiple groups of first heat dissipation holes are provided at the upper end of the motor housing.

[0012] Further description of the present utility model: Multiple groups of second heat dissipation holes are provided on the outer periphery of the motor housing.

[0013] The beneficial effects of the present utility model are as follows: By providing assembly bosses on the bearing installation ring, the ball bearing is tightly assembled with the assembly bosses, so that the ball bearing is fixed in the bearing installation ring without using glue bonding. Its advantages are: automatic production can be realized, production efficiency can be improved, the assembly bosses processed automatically have high precision, can effectively fix the ball bearing, avoid the loosening of the ball bearing, and can effectively avoid the abnormal noise of the motor caused by the overflow of glue. Description of the Drawings

[0014] Figure 1 is the overall structure diagram of the first embodiment of the present utility model;

[0015] Figure 2 is the bottom view of the first embodiment of the present utility model;

[0016] Figure 3 is Figure 2 the partial enlarged view at position A in

[0017] Figure 4 is the overall structure diagram of the second embodiment of the present utility model;

[0018] Figure 5 is the top view of the second embodiment of the present utility model;

[0019] Figure 6 is Figure 5 the partial enlarged view at position B in

[0020] Description of the Reference Numerals:

[0021] 01, motor housing; 011, first heat dissipation hole; 012, second heat dissipation hole; 02, bearing installation ring; 021, assembly boss; 022, outer fixing ring; 0221, first riveting groove; 023, inner fixing ring; 0231, second riveting groove; 024, connecting ring; 03, ball bearing. Detailed Embodiment

[0022] The present utility model will be further described below with reference to the drawings: Embodiment

[0023] As Figures 1 to 3As shown in the figure, a bearing assembly structure of a motor housing 01 includes an integrally provided motor housing 01, a bearing mounting ring 02, and a ball bearing 03. The bearing mounting ring 02 is fixed to the upper end of the motor housing 01. An assembly boss 021 is provided at the upper end of the bearing mounting ring 02. The assembly boss 021 corresponds to the inner side of the bearing mounting ring 02 and protrudes toward the center of the bearing mounting ring 02. Multiple groups of the assembly bosses 021 are uniformly arranged on the bearing mounting ring 02. The ball bearing 03 corresponds to the inside of the bearing mounting ring 02, and the inner sides of multiple groups of the assembly bosses 021 are all in contact with the ball bearing 03.

[0024] By providing the assembly boss 021 on the bearing mounting ring 02 and tightly assembling the assembly boss 021 with the ball bearing 03, the ball bearing 03 is fixed inside the bearing mounting ring 02 without using glue bonding. Its advantages are as follows: automated production can be achieved, production efficiency can be improved, the assembly boss 021 processed automatically has high precision, can effectively fix the ball bearing 03, avoid loosening of the ball bearing 03, and can effectively avoid abnormal noise of the motor caused by glue overflow.

[0025] The bearing mounting ring 02 includes an integrally provided outer fixing ring 022, an inner fixing ring 023, and a connecting ring 024. The lower end of the outer fixing ring 022 is fixed to the upper end of the motor housing 01. The outer periphery of the inner fixing ring 023 is connected to the upper end of the outer fixing ring 022 through the connecting ring 024. The outer surface of the connecting ring 024 is an arc surface. The outer fixing ring 022, the inner fixing ring 023, and the connecting ring 024 enclose a cavity for installing the ball bearing 03.

[0026] The assembly boss 021 corresponds to the inside of the outer fixing ring 022. A first riveting groove 0221 is provided on the outer side of the outer fixing ring 022. The first riveting groove 0221 is recessed toward the center of the outer fixing ring 022. Multiple groups of the first riveting grooves 0221 are provided and correspond to multiple groups of the assembly bosses 021 one by one. Through the riveting process, the outer fixing ring 022 is riveted inward along the radial direction, and the first riveting groove 0221 is formed at the riveting position. Correspondingly, an assembly boss 021 corresponding to the first riveting groove 0221 is formed on the inner side of the outer fixing ring 022, and the ball bearing 03 can be directly fixed inside the outer fixing ring 022 through riveting.

[0027] Multiple groups of first heat dissipation holes 011 are provided at the upper end of the motor housing 01, and multiple groups of second heat dissipation holes 012 are provided on the outer periphery of the motor housing 01. During the operation of the motor, a large amount of heat is generated inside the motor housing 01. The first heat dissipation holes 011 and the second heat dissipation holes 012 can effectively discharge the heat and improve the heat dissipation capacity of the motor.

[0028] Embodiment 2:

[0029] As Figures 4 to 6As shown in the figure, the structure of this embodiment is basically the same as that of the first embodiment, except that there is no first heat dissipation hole 011 on the motor housing 01 of this embodiment, and the assembly boss 021 corresponds to the inner fixing ring 023. A second riveting groove 0231 is provided on the upper side of the inner fixing ring 023. The second riveting groove 0231 is recessed towards the lower side of the inner fixing ring 023. Multiple groups of the second riveting grooves 0231 are provided and correspond to multiple groups of assembly bosses 021 one by one.

[0030] Through the riveting process, the inner fixing ring 023 is riveted downward, and the second riveting groove 0231 is formed at the riveting position. Due to the extrusion of the material on the inner fixing ring 023 during the riveting process, the assembly boss 021 corresponding to the second riveting groove 0231 is formed on the inner side of the inner fixing ring 023 accordingly, and the ball bearing 03 can be directly fixed in the inner fixing ring 023 by riveting.

[0031] The above does not impose any limitation on the technical scope of the present invention. Any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A bearing assembly structure for a motor housing, characterized in that: It includes a motor housing, a bearing mounting ring and a ball bearing which are integrally arranged. The bearing mounting ring is fixed to the upper end of the motor housing. An assembly boss is provided at the upper end of the bearing mounting ring. The assembly boss corresponds to the inner side of the bearing mounting ring and protrudes towards the center of the bearing mounting ring. Multiple groups of the assembly bosses are evenly arranged on the bearing mounting ring. The ball bearing corresponds to the inside of the bearing mounting ring, and the inner sides of multiple groups of the assembly bosses are all in contact with the ball bearing.

2. The assembled structure of the motor housing bearing according to claim 1, characterized in that: The bearing mounting ring includes an outer fixing ring, an inner fixing ring and a connecting ring which are integrally arranged. The lower end of the outer fixing ring is fixed to the upper end of the motor housing. The outer periphery of the inner fixing ring is connected to the upper end of the outer fixing ring through the connecting ring, and the outer surface of the connecting ring is an arc surface.

3. A motor housing bearing assembly structure according to claim 2, characterized in that: The assembly boss corresponds to the inside of the outer fixing ring.

4. A motor housing bearing assembly structure according to claim 3, characterized in that: A first riveting groove is provided on the outer side of the outer fixing ring. The first riveting groove is recessed towards the center of the outer fixing ring. Multiple groups of the first riveting grooves are provided and correspond to multiple groups of the assembly bosses one by one.

5. A motor housing bearing assembly structure according to claim 2, characterized in that: The assembly boss corresponds to the inside of the inner fixing ring.

6. The assembled structure of the motor housing bearing according to claim 5, wherein: A second riveting groove is provided on the upper side of the inner fixing ring. The second riveting groove is recessed towards the lower side of the inner fixing ring. Multiple groups of the second riveting grooves are provided and correspond to multiple groups of the assembly bosses one by one.

7. A motor housing bearing assembly structure according to claim 1, characterized in that: Multiple groups of first heat dissipation holes are provided at the upper end of the motor housing.

8. A motor housing bearing assembly structure according to claim 1, characterized in that: Multiple groups of second heat dissipation holes are provided on the outer periphery of the motor housing.

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