Motor

A shaft and housing technology, applied in the field of motors, can solve the problems of prominent abnormal noise and small axial preload, and achieve the effects of avoiding dislocation, prolonging service life and uniform force.

Pending Publication Date: 2020-06-16
WELLING WUHU MOTOR MFG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the stage of starting and stopping the motor, due to the load becoming smaller until it disappears, the axial preloa

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[0037] In order to be able to understand the above objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

[0038] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the scope of protection of the present invention is not covered by the specific implementations disclosed below. Limitations of cases.

[0039] Refer below Figure 1 to Figure 3 To describe motors provided according to some embodiments of the present invention.

[0040] The invention proposes a motor, such as Figure 1 to Figure 3 As s...

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Abstract

The invention provides a motor. The motor comprises a shell, a rotating shaft, a rolling piece and an elastic piece; the rotating shaft is arranged in the shell; the rotating shaft is provided with apositioning part and a limiting part; the rolling piece sleeves the rotating shaft and located in the shell; the rolling piece comprises a barrel and a rolling body; the rolling body is arranged between the barrel and the positioning part in a rolling mode; and the elastic piece sleeves the rotating shaft and located in the shell; and the two ends of the elastic piece abut against the shell and the limiting part correspondingly. According to the motor provided by the invention, the positioning part is matched with the elastic piece, so that the good centering performance of a rotor system is realized, and the centering performance, uniform stress and stable operation of the rolling body are ensured, the vibration noise performance and reliability of the motor are improved, the initial pre-pressure of the motor in a start-stop stage is ensured, the rolling body is prevented from being in an irregular free sliding state, abnormal noise generated by the rolling body when the motor is started and stopped is avoided, and the service life of the motor is prolonged.

Description

technical field [0001] The present invention relates to the technical field of motors, and more specifically, to a motor. Background technique [0002] At present, the development trend of motor miniaturization and high speed is obvious. At the same time, due to the high speed and miniaturization of the motor, many difficulties are encountered in the design and manufacture of the motor. As the speed of the motor increases, the friction loss of the bearing itself increases, and the problem of vibration and noise becomes more serious. In order to reduce the bearing loss and improve the vibration and noise of the motor, with the increase of the motor speed, the requirement for the neutrality of the rotor core system is getting higher and higher. The good centering of the rotor core system can ensure the centering of two or more rows of rolling elements, uniform force and stable operation. [0003] At the same time, in order to prevent rolling body wear caused by the irregula...

Claims

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Application Information

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IPC IPC(8): H02K7/00H02K5/173
CPCH02K5/1732H02K7/003
Inventor 冯国平王卫东柳瑞锋
Owner WELLING WUHU MOTOR MFG
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