Stator, rotor, and press-fitting method and press-fitting equipment for axial centering of stator and rotor cores
By adopting pressure stop mode and automatic compensation technology during the stator and rotor pressing process, the motor performance degradation and noise problems caused by the stator and rotor are solved, and higher motor performance and longer bearing life are achieved.
CN119134816BActive Publication Date: 2025-03-28CHANGZHOU YUANENG MECHANICAL & ELECTRICAL TECH CO LTD
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Patent Information
- Application Number
- CN202411626417.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-11-14
AI Technical Summary
Technical Problem
The poor state of the stator core leads to a decrease in the motor torque performance, shortening the bearing life, and causing noise problems, which are mainly due to the axial force fluctuations caused by the thickness of the stator core.
Method used
Using a stator pressing method and rotor pressing method, ballasting is performed through the pressure stop mode, the head displacement scale value is obtained, and automatic compensation is performed on the stator and rotor workbench to ensure the center alignment of the stator and rotor in the axial direction.
Benefits of technology
It effectively reduces the bad state of the stator center, improves the motor performance, reduces axial force fluctuations, extends the bearing life, and reduces noise.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a press-fitting method and press-fitting equipment for axial centering of a stator, a rotor, and a stator-rotor iron core. The press-fitting method of the stator includes: placing the stator on a stator base, obtaining the stacking thickness c1 of the stator and the thickness b1 of the stator base; the stator pressure head ballasts the stator placed on the stator base, including: ballasting through a pressure stop mode; obtaining the displacement scale value X1 of the stator pressure head during the stator ballast process; the stator pressure head grabs the stator to a stator shrink-fit station, and presses the stator into a casing; the distance d1 between the center of the stator in the axial direction and the stator workbench, the press-fitting variable of the stator at the stator shrink-fit station is Y1. According to the press-fitting method of the present invention, the bad state of centering can be well reduced, thereby improving the performance of the motor, reducing the axial force fluctuation, and effectively improving the bearing life and reducing noise.
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