An assembled small motor rotor structure

Abstract

The utility model provides a kind of assembled small motor rotor structure, including rotor, front bearing, rear bearing and shell;The shell bears the internal structure of entire motor, top is provided with front cover, lower is provided with rear cover, for bearing the front bearing and rear bearing described in;The front bearing is located on the front cover, and is fixedly connected with the front cover;The rear bearing is located on the rear cover, and is fixedly connected with the rear cover;The rotor penetrates the front cover and rear cover, and upper and lower sides are connected with the front bearing and rear bearing described in.The utility model provides a kind of assembled small motor rotor structure, by installing front and rear bearing on front and rear bearing seat respectively, then first install to front and rear cover, save the assembly space in motor interior, can be assembled under the premise that bearing size is not reduced, can reduce motor size.

Description

Technical Field

[0001] This utility model relates to an assembled small motor rotor structure. Background Technology

[0002] Currently, electric motors are widely used in the market as common electrical appliances. In particular, household appliances such as vacuum cleaners are becoming increasingly lightweight and intelligent, so the motors they are paired with are also becoming smaller and smaller, requiring smaller size to generate higher power. As the size of the motor decreases, the inner hole of the stator core also decreases, resulting in smaller bearings in conventional rotor structures. Smaller bearings have lower dynamic loads and are more prone to failure during motor assembly and operation.

[0003] Therefore, existing technologies require smaller bearings and rotors within the motor. However, to ensure the strength of motor operation, the bearings of the motor rotor must maintain the required size, otherwise their lifespan will be affected. Traditional bearings need to be installed inside the housing and assembled after being fixed to the rotor. Due to the reduction in size, once the bearings are installed with the rotor, it is difficult to install them into the motor housing using traditional methods, affecting the overall assembly efficiency of the motor. Summary of the Invention

[0004] This utility model aims to provide an assembled small motor rotor structure. By fixing the bearing to the motor housing, a unified installation can be achieved during assembly. It eliminates the need to install the bearing and rotor first through the traditional assembly method. The bearing size can be increased within the limited space of the motor, thereby improving the structural strength.

[0005] To solve the above problems, the present invention provides an assembled small motor rotor structure with the following technical solution:

[0006] An assembled small motor rotor structure includes a rotor, a front bearing, a rear bearing, and a housing. The housing supports the entire internal structure of the motor, with a front cover on top and a rear cover on the bottom for supporting the front and rear bearings. The front bearing is located on the front cover and is fixedly connected to it. The rear bearing is located on the rear cover and is fixedly connected to it. The rotor passes through the front and rear covers and is connected to the front and rear bearings on its upper and lower sides.

[0007] Furthermore, the front cover is provided with a front bearing seat, which is circular in shape, hollow inside to support the front bearing, and the outer circle abuts against the inner circle of the front cover.

[0008] Furthermore, the front bearing housing is provided with a fixing plate, and the fixing plate is provided with a connecting screw hole for connecting the front cover.

[0009] Furthermore, a pressure plate is provided on the inner wall of the front cover. The pressure plate is located inside the front bearing housing and faces the front bearing, and is used to limit the position of the front bearing.

[0010] Furthermore, the front cover has a connecting hole at its center, through which the rotor passes and connects with the front bearing.

[0011] Furthermore, the rear cover is provided with a rear bearing seat, which is triangular in shape and arranged inside the inner circle of the rear cover, with three points abutting against the inner circular wall of the rear cover.

[0012] Furthermore, a connecting platform is provided on the inner circular wall of the rear cover, which cooperates with the rear bearing seat and is connected to the rear bearing seat by screws.

[0013] Furthermore, the bottom of the rear bearing housing is provided with heat dissipation holes, and multiple heat dissipation holes are provided, which penetrate the rear bearing housing.

[0014] Furthermore, the rotor is provided with a spring, which is located between the front and rear bearings and surrounds the outer circumference of the rotor.

[0015] The beneficial effects of this utility model are as follows: The assembled small motor rotor structure provided by this utility model saves the internal assembly space of the motor by installing the front and rear bearings on the front and rear bearing seats respectively, and then installing them on the front and rear covers. It can complete the assembly without reducing the bearing size, and can reduce the size of the motor. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic view of the rotor structure of this utility model.

[0017] Appendix Figure 2 This is a schematic diagram of the front cover of this utility model.

[0018] Appendix Figure 3 This is a schematic diagram of the back cover of this utility model.

[0019] Appendix Figure 4 This is a schematic diagram of the rotor and spring structure of this utility model.

[0020] The components are: 1. Rotor, 2. Front bearing, 3. Rear bearing, 4. Housing, 5. Front cover, 6. Rear cover, 7. Front bearing seat, 8. Fixing plate, 9. Pressing plate, 10. Connecting hole, 11. Rear bearing seat, 12. Connecting plate, 13. Heat dissipation hole, 14. Spring. Detailed Implementation

[0021] To better understand the technical solution provided by this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] As shown in the attached drawings, the present invention provides an assembled small motor rotor structure, including a rotor 1, a front bearing 2, a rear bearing 3, and a housing 4. The housing 4 supports the entire internal structure of the motor, with a front cover 5 on top and a rear cover 6 on the bottom, for supporting the front bearing 2 and the rear bearing 3. The front bearing 2 is located on the front cover 5 and is fixedly connected to the front cover 5. The rear bearing 3 is located on the rear cover 6 and is fixedly connected to the rear cover 6. The rotor 1 passes through the front cover 5 and the rear cover 6, and is connected to the front bearing 2 and the rear bearing 3 on its upper and lower sides.

[0023] Furthermore, a front bearing seat 7 is provided on the front cover 5. The front bearing seat 7 has a circular shape, is hollow inside to support the front bearing 2, and its outer circle abuts against the inner circle of the front cover 5.

[0024] Furthermore, the front bearing housing 7 is provided with a fixing bracket 8, and the fixing bracket 8 is provided with connecting screw holes for connecting the front cover 5.

[0025] Furthermore, a pressure platform 9 is provided on the inner wall of the front cover. The pressure platform 9 is located inside the front bearing seat 7 and faces the front bearing 2, and is used to limit the position of the front bearing 2.

[0026] Furthermore, the front cover 5 has a connecting hole 10 at its center, through which the rotor 1 passes and is connected to the front bearing 2.

[0027] Furthermore, a rear bearing seat 11 is provided on the rear cover 6. The rear bearing seat 11 is triangular in shape and is arranged in the inner circle of the rear cover 6, with three points abutting against the inner circular wall of the rear cover 6.

[0028] Furthermore, a connecting platform 12 is provided on the inner circular wall of the rear cover 6, which cooperates with the rear bearing seat 11 and is connected to the rear bearing seat 11 by screws.

[0029] Furthermore, the bottom of the rear bearing housing 11 is provided with heat dissipation holes 13, and multiple heat dissipation holes 13 are provided, which penetrate the rear bearing housing 11.

[0030] Furthermore, a spring 14 is provided on the rotor 1, and the spring 14 is located between the front and rear bearings 3, surrounding the outer circle of the rotor 1.

Claims

1. A prefabricated small motor rotor structure, characterized in that, The motor includes a rotor, a front bearing, a rear bearing, and a housing. The housing supports the entire internal structure of the motor and has a front cover on top and a rear cover on the bottom to support the front and rear bearings. The front bearing is located on the front cover and is fixedly connected to it. The rear bearing is located on the rear cover and is fixedly connected to it. The rotor passes through the front and rear covers and is connected to the front and rear bearings on its upper and lower sides.

2. The assembled small motor rotor structure according to claim 1, characterized in that, The front cover is provided with a front bearing seat, which is circular in shape and hollow inside to support the front bearing. The outer circle of the bearing seat abuts against the inner circle of the front cover.

3. The assembled small motor rotor structure according to claim 2, characterized in that, The front bearing housing is provided with a fixing plate, and the fixing plate is provided with a connecting screw hole for connecting the front cover.

4. The assembled small motor rotor structure according to claim 2, characterized in that, A pressure plate is also provided on the inner wall of the front cover. The pressure plate is located inside the front bearing housing and faces the front bearing, and is used to limit the position of the front bearing.

5. The assembled small motor rotor structure according to claim 2, characterized in that, The front cover has a connecting hole at its center, through which the rotor passes and is connected to the front bearing.

6. The assembled small motor rotor structure according to claim 1, characterized in that, The rear cover is provided with a rear bearing seat, which is triangular in shape and arranged in the inner circle of the rear cover, with three points abutting against the inner circular wall of the rear cover.

7. The assembled small motor rotor structure according to claim 6, characterized in that, The inner circular wall of the rear cover is provided with a connecting platform, which cooperates with the rear bearing seat and is connected to the rear bearing seat by screws.

8. The assembled small motor rotor structure according to claim 6, characterized in that, The bottom of the rear bearing housing is provided with heat dissipation holes, and there are multiple heat dissipation holes that penetrate the rear bearing housing.

9. The assembled small motor rotor structure according to claim 1, characterized in that, The rotor is equipped with a spring, which is located between the front and rear bearings and surrounds the outer circumference of the rotor.

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