Motor support with combined bearing structure

Abstract

The utility model discloses a motor support with combined bearing structure for supporting the rotating shaft of motor, including casing, ball bearing and bearing spring piece, the middle part of casing is equipped with center support, one side of center support has the cavity of inside opening to the direction, be equipped with ball socket in the cavity, one end of ball bearing is arranged in ball socket, one end of rotating shaft passes ball socket and the center hole of ball bearing from one side of center support, and the bearing spring piece is positioned in the cavity, and the other end surface of ball bearing is pressed to the elasticity, and makes ball bearing position in ball socket. The utility model can guarantee that bearing swing force is stable, improves motor load performance, and high stability and simple and convenient assembly.

Description

Technical Field

[0001] This utility model relates to a motor bracket, and more particularly to a motor bracket with a combined bearing structure. Background Technology

[0002] Motor ball bearings (commonly known as motor ball bearings) are one of the core transmission components of a motor. Their core function is to support the motor's rotating shaft, reduce frictional losses, and ensure stable and efficient motor operation. Existing motor ball bearings are installed in the motor bracket using a riveting structure. However, this riveting structure is prone to riveting point breakage, resulting in unstable bearing runout and causing poor motor starting. Utility Model Content

[0003] The purpose of this invention is to provide a motor bracket with a combined bearing structure, which can ensure stable bearing swing force, improve motor load performance, and has high stability and is simple and convenient to assemble.

[0004] To achieve the above objectives, this utility model provides a motor bracket with a combined bearing structure for supporting the motor shaft. The bracket includes a housing, a ball bearing, and a bearing spring. A central support is located in the middle of the housing. One side of the central support has an inwardly opening cavity. A ball socket is located within the cavity, and one end of the ball bearing is positioned within the ball socket. One end of the rotating shaft passes through the ball socket and the central hole of the ball bearing from one side of the central support. The bearing spring is positioned within the cavity and elastically presses against the other end surface of the ball bearing, thus positioning the ball bearing within the ball socket. Compared with the prior art, this utility model sets a central support in the middle of the housing, sets a ball bearing in the ball socket of the cavity set in the central support, and then uses a bearing spring to press against the ball bearing, so that the ball bearing is positioned in the ball socket by the bearing spring. This can avoid the problem of rivet breakage that occurs when the riveting structure is used in the traditional way, ensure the stability of bearing swing force, improve motor load performance, and has high stability and simple and convenient assembly.

[0005] Preferably, the bearing spring has a circular ring body with an inner hole. Multiple abutment portions are circumferentially arranged along the edge of the inner hole, and these abutment portions elastically press against the surface of the ball bearing. The abutment portions limit the movement of the ball bearing around its perimeter, ensuring uniform force distribution and thus stable bearing runout.

[0006] Specifically, the inner wall of the pressing part is spherical so as to make spherical contact with the surface of the ball bearing.

[0007] Specifically, an elastic connecting piece is provided between the ring body and the pressing part. The elastic connecting piece provides an elastic restoring force between the pressing part and the ball bearing, thereby allowing the ball bearing to have a certain range of motion.

[0008] Specifically, the ring body, the elastic connecting piece, and the pressing part are integrally formed.

[0009] Preferably, the motor bracket with the combined bearing structure further includes an inner diameter retaining ring. The inner wall of the cavity is provided with an annular groove. The outer edge of the inner diameter retaining ring is engaged in the annular groove, and the inner edge of the inner diameter retaining ring abuts against the bearing spring. By setting the inner diameter retaining ring and engaging it in the annular groove of the cavity, the bearing spring and the ball bearing can be axially positioned, allowing the ball bearing to be stably installed in the ball socket. Moreover, during assembly, there is no need to use screws, spot welding, or riveting, making the assembly of the entire motor bracket more convenient and quick.

[0010] Specifically, the inner diameter retaining ring has a C-shaped structure. This allows the outer diameter of the inner diameter retaining ring to shrink under external force during installation and removal, making it easy to install into the annular retaining groove, and also allows for quick removal from the annular retaining groove during disassembly. Attached Figure Description

[0011] Figure 1 This is a perspective view of the motor bracket with a combined bearing structure according to this utility model.

[0012] Figure 2 This is an exploded view of the motor bracket with a combined bearing structure according to this utility model.

[0013] Figure 3 This is an axial sectional view of the motor bracket with a combined bearing structure according to this utility model.

[0014] Figure 4 This is a structural diagram of the bearing spring of the motor bracket with a combined bearing structure according to this utility model. Detailed Implementation

[0015] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0016] Please see Figures 1 to 3This utility model discloses a motor bracket 100 with a combined bearing structure for supporting a motor shaft 200. It includes a housing 1, a ball bearing 2, and a bearing spring 3. A central support 11 is provided in the middle of the housing 1. One side of the central support 11 has an inwardly opening cavity 11a. A ball socket 11b is provided within the cavity 11a, and one end of the ball bearing 2 is disposed within the ball socket 11b. One end of the shaft 200 passes through a through hole 11c in the ball socket 11b and a central hole 21 in the ball bearing 2 from one side of the central support 11. The shaft 200 and the central hole 21 of the ball bearing 2 are press-fitted. The bearing spring 3 is positioned within the cavity 11a and elastically presses against the other end surface of the ball bearing 2, thus positioning the ball bearing 2 within the ball socket 11b.

[0017] Please see again Figure 4 The bearing spring 3 has a circular body 31 with an inner hole 32. Multiple pressing portions 33 are circumferentially arranged along the edge of the inner hole 32, and these pressing portions 33 elastically press against the surface of the ball bearing 2. The pressing portions 33 limit the movement of the ball bearing 2 around its perimeter, ensuring uniform force distribution and thus stable bearing oscillation. The inner wall of the pressing portion 33 is spherical, allowing spherical contact with the surface of the ball bearing 2. Specifically, an elastic connecting piece 34 is provided between the circular body 31 and the pressing portion 33. The elastic connecting piece 34 provides elastic restoring force between the pressing portion 33 and the ball bearing 2, allowing the ball bearing 2 to have a certain oscillation amplitude. The elastic connecting piece 34 and the circular body 31 are on the same plane, and the pressing portion 33 has a bent structure relative to the elastic connecting piece 34. The circular body 31, the elastic connecting piece 34, and the pressing part 33 are integrally formed.

[0018] For example Figures 1 to 3 As shown, the motor bracket 100 with the combined bearing structure also includes an inner diameter retaining ring 4. The inner wall of the cavity 11a is provided with an annular groove 11d. The outer edge of the inner diameter retaining ring 4 is engaged in the annular groove 11d, and the inner edge of the inner diameter retaining ring 4 abuts against the annular body 31 of the bearing spring 3. The inner diameter retaining ring 4 has a C-shaped structure. This allows the outer diameter of the inner diameter retaining ring 4 to be reduced under the action of external force during assembly and disassembly, so as to facilitate its installation in the annular groove 11d. Moreover, it can be quickly removed from the annular groove 11d during disassembly. By setting the inner diameter retaining ring 4 and engaging it in the annular groove 11d of the cavity 11a, the bearing spring 3 and the ball bearing 2 can be axially positioned, so that the ball bearing 2 can be stably installed in the ball socket 11b. Furthermore, no screws, spot welding, or riveting is required during assembly, making the assembly of the entire motor bracket more convenient and quick.

[0019] Compared with the prior art, this utility model sets a central support 11 in the middle of the housing 1, and sets the ball bearing 2 in the ball socket 11b of the cavity 11a of the central support 11. Then, the bearing spring 3 is used to press against the ball bearing 2, so that the ball bearing 2 is pressed and positioned in the ball socket 11b by the bearing spring 3. This can avoid the problem of rivet breakage that occurs when the riveting structure is used in the traditional way, ensure the stability of bearing swing force, improve motor load performance, and has high stability and simple and convenient assembly.

[0020] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A motor bracket with a combined bearing structure for supporting the motor shaft, characterized in that: The device includes a housing, a ball bearing, and a bearing spring. The housing has a central support in the middle, and one side of the central support has an inwardly opening cavity. A ball socket is provided in the cavity, and one end of the ball bearing is disposed in the ball socket. One end of the rotating shaft passes through the ball socket and the central hole of the ball bearing from one side of the central support. The bearing spring is positioned in the cavity and elastically presses against the other end surface of the ball bearing, so that the ball bearing is positioned in the ball socket.

2. The motor bracket with a combined bearing structure according to claim 1, characterized in that: The bearing spring has a circular body with an inner hole. The edge of the inner hole is provided with a plurality of pressing parts in a circumferential direction. The pressing parts elastically press against the surface of the ball bearing.

3. The motor bracket with a combined bearing structure according to claim 2, characterized in that: The inner wall of the pressing part is spherical so as to make spherical contact with the surface of the ball bearing.

4. The motor bracket with a combined bearing structure according to claim 2, characterized in that: An elastic connecting piece is provided between the main body of the ring and the pressing part.

5. The motor bracket with a combined bearing structure according to claim 4, characterized in that: The circular body, the elastic connecting piece, and the pressing part are integrally formed.

6. The motor bracket with a combined bearing structure according to claim 1, characterized in that: The motor bracket with the combined bearing structure also includes an inner diameter retaining ring. The inner wall of the cavity is provided with an annular groove. The outer edge of the inner diameter retaining ring is engaged in the annular groove, and the inner edge of the inner diameter retaining ring abuts against the bearing spring.

7. The motor bracket with a combined bearing structure according to claim 6, characterized in that: The inner diameter retaining ring has a C-shaped structure.

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