Motor bearing chamber assembly and motor

Abstract

This utility model discloses a motor bearing housing assembly and a motor. The motor bearing housing assembly includes a bearing housing body, a bearing seat, and a sealing structure. The bearing housing body is a double-layer composite structure with an inner copper alloy layer and an outer aluminum alloy layer, and multiple heat dissipation channels are formed along the axial direction inside. The inner wall of the bearing seat is provided with a spiral oil guide groove, and multiple lubricating oil holes are evenly distributed at the bottom of the groove. A stepped positioning boss is provided at the end of the bearing seat. The sealing structure includes a labyrinth sealing ring embedded in the opening of the bearing housing and a magnetic sealing cover connected by a snap fastener. The space between the magnetic sealing cover and the labyrinth sealing ring is filled with high-temperature resistant sealant. This utility model has the advantages of excellent heat dissipation performance, uniform lubrication, stable installation, and strong sealing performance.

Description

Technical Field

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

[0002] Traditional motor bearing housings are mostly made of a single metal material, resulting in insufficient heat dissipation and easy overheating of the bearings during prolonged operation. Furthermore, the lubrication structure is poorly designed, leading to uneven oil distribution. Additionally, the bearing installation and positioning accuracy is low, making them prone to misalignment due to vibration. Therefore, there is an urgent need for a motor bearing housing assembly and motor with optimized structure, efficient heat dissipation, and stable installation. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a motor bearing housing assembly and a motor, which has advantages such as excellent heat dissipation performance, uniform lubrication, stable installation, and strong sealing.

[0004] The technical solution of this utility model is as follows:

[0005] An electric motor bearing housing assembly includes a bearing housing body, a bearing seat, and a sealing structure;

[0006] The bearing housing body is a double-layer composite structure with an inner copper alloy layer and an outer aluminum alloy layer, and multiple heat dissipation channels are opened along the axial direction inside.

[0007] The inner wall of the bearing housing is provided with a spiral oil guide groove, and multiple lubricating oil holes are evenly distributed at the bottom of the spiral oil guide groove. The end of the bearing housing is provided with a stepped positioning boss.

[0008] The sealing structure includes a labyrinth sealing ring embedded in the opening of the bearing chamber, and a magnetic sealing cover connected by a snap fastener, wherein the space between the magnetic sealing cover and the labyrinth sealing ring is filled with high-temperature resistant sealant.

[0009] In a further technical solution, the magnetic sealing cover is embedded with an annular permanent magnet, and the surface of the permanent magnet is covered with a polytetrafluoroethylene or ceramic protective layer.

[0010] In a further technical solution, the heat dissipation channels are arranged in an alternating pattern in the circumferential direction of the bearing housing body, and the included angle between adjacent heat dissipation channels is 15°-30°.

[0011] In a further technical solution, a shock-absorbing ring is also provided on the outer wall of the bearing chamber body. The shock-absorbing ring is made of rubber or silicone and has an embedded metal reinforcing mesh.

[0012] In a further technical solution, the diameter of the lubricating oil hole is 0.8mm-1.5mm, and each of the spiral oil guide grooves is provided with a lubricating oil hole at a circumferential interval of 90°-120°.

[0013] In a further technical solution, the high-temperature resistant sealant is a silicone sealant or a fluororubber colloid, with a temperature tolerance range of -40℃ to 200℃.

[0014] In a further technical solution, the connection between the bearing housing body and the bearing seat is provided with a dovetail groove structure and is fixed by high-strength bolts.

[0015] This utility model also provides an electric motor, which is provided with the above-mentioned motor bearing housing assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the motor bearing chamber assembly described in an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 10. Bearing housing body; 11. Heat dissipation channel; 20. Bearing seat; 21. Spiral oil guide groove; 22. Lubricating oil hole; 31. Labyrinth seal ring; 32. Magnetic seal cover; 40. Positioning boss; 50. Permanent magnet; 60. Shock-absorbing ring. Detailed Implementation

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0020] Example 1:

[0021] An electric motor bearing housing assembly, such as Figure 1 As shown, it includes the bearing housing body, bearing seat, and sealing structure;

[0022] The bearing housing body is a double-layer composite structure with an inner copper alloy layer and an outer aluminum alloy layer, and multiple heat dissipation channels are opened along the axial direction inside.

[0023] The inner wall of the bearing housing is provided with a spiral oil guide groove, and multiple lubricating oil holes are evenly distributed at the bottom of the spiral oil guide groove. The end of the bearing housing is provided with a stepped positioning boss.

[0024] The sealing structure includes a labyrinth sealing ring embedded in the opening of the bearing chamber, and a magnetic sealing cover connected by a snap fastener, wherein the space between the magnetic sealing cover and the labyrinth sealing ring is filled with high-temperature resistant sealant.

[0025] In another embodiment, such as Figure 1 As shown, the magnetic sealing cover has an embedded annular permanent magnet, and the surface of the permanent magnet is covered with a polytetrafluoroethylene or ceramic protective layer.

[0026] In another embodiment, the heat dissipation channels are staggered in the circumferential direction of the bearing housing body, and the included angle between adjacent heat dissipation channels is 15°-30°.

[0027] In another embodiment, such as Figure 1 As shown, it also includes a shock-absorbing ring disposed on the outer wall of the bearing chamber body. The shock-absorbing ring is made of rubber or silicone and has an embedded metal reinforcing mesh.

[0028] In another embodiment, the diameter of the lubricating oil hole is 0.8mm-1.5mm, and each of the spiral oil guide grooves is provided with a lubricating oil hole at circumferential intervals of 90°-120°.

[0029] In another embodiment, the high-temperature resistant sealant is a silicone sealant or a fluororubber colloid, with a temperature tolerance range of -40℃ to 200℃.

[0030] In another embodiment, the connection between the bearing housing body and the bearing seat is provided with a dovetail groove structure and is fixed by high-strength bolts.

[0031] Example 2:

[0032] An electric motor is equipped with the motor bearing housing assembly described in the above embodiments.

[0033] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An electric machine bearing chamber assembly, characterized by, Includes the bearing housing body, bearing seat, and sealing structure; The bearing housing body is a double-layer composite structure with an inner copper alloy layer and an outer aluminum alloy layer, and multiple heat dissipation channels are opened along the axial direction inside. The inner wall of the bearing housing is provided with a spiral oil guide groove, and multiple lubricating oil holes are evenly distributed at the bottom of the spiral oil guide groove. The end of the bearing housing is provided with a stepped positioning boss. The sealing structure includes a labyrinth sealing ring embedded in the opening of the bearing chamber, and a magnetic sealing cover connected by a snap fastener, wherein the space between the magnetic sealing cover and the labyrinth sealing ring is filled with high-temperature resistant sealant.

2. The motor bearing chamber assembly of claim 1, wherein, The magnetic sealing cover has an embedded annular permanent magnet, the surface of which is covered with a polytetrafluoroethylene or ceramic protective layer.

3. The motor bearing chamber assembly of claim 1, wherein, The heat dissipation channels are arranged in an alternating pattern on the circumference of the bearing housing body, with an included angle of 15°-30° between adjacent heat dissipation channels.

4. The motor bearing chamber assembly of claim 1, wherein, It also includes a shock-absorbing ring disposed on the outer wall of the bearing chamber body, the shock-absorbing ring being made of rubber or silicone and having an embedded metal reinforcing mesh.

5. The motor bearing housing assembly according to claim 1, characterized in that, The diameter of the lubricating oil hole is 0.8mm-1.5mm, and each of the spiral oil guide grooves is provided with a lubricating oil hole at a circumferential interval of 90°-120°.

6. The motor bearing chamber assembly of claim 1, wherein, The high-temperature resistant sealant is a silicone sealant or a fluororubber colloid, with a temperature tolerance range of -40℃ to 200℃.

7. The motor bearing chamber assembly of claim 1, wherein, The connection between the bearing housing body and the bearing seat is provided with a dovetail groove structure and is fixed by high-strength bolts.

8. An electric machine characterized by Includes the motor bearing housing assembly as described in any one of claims 1-7.

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