Special permanent magnet motor rotor for ball mill

By designing the combined structure of the rotor of the permanent magnet motor for ball mill, the problems of the flake spread and magnetic steel rebound during the assembly process are solved, the assembly efficiency and structural stability are improved, the life of the rotor is extended and the maintenance cost is reduced.

CN222638245UActive Publication Date: 2025-03-18JINHUA JIANGKE POWER CO LTD
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Patent Information

Application Number
CN202420219284.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-30
Publication Date
2025-03-18
Estimated Expiration
2034-01-30

AI Technical Summary

Technical Problem

The permanent magnet motor rotor used in ball mills is prone to problems such as loose sheets and magnetic steel rebound during assembly, resulting in low assembly efficiency and unsolid structure, which affects the life of the rotor and maintenance cost.

Method used

A permanent magnet motor rotor for ball mill is designed, and a combined structure of a rotor shaft unit, a rotor core, a first pressure plate, a second pressure plate and a baffle are used to stabilize the opening of the magnetic steel groove by fixing and installing these components to ensure that the magnetic steel is properly installed and fixed.

Benefits of technology

It effectively improves the assembly efficiency of the rotor, avoids the problems of loose sheets and magnetic steel rebound, ensures the firmness of the rotor structure, extends the life of the rotor and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to a special permanent magnet motor rotor for a ball mill, which comprises a rotor shaft unit, a rotor iron core, a first pressing plate, a second pressing plate and a baffle plate, the rotor shaft unit is fixedly arranged on the rotor iron core in a penetrating manner, the rotor iron core is provided with a plurality of magnetic steel grooves, the plurality of magnetic steel grooves are distributed along the circumferential direction of the rotor iron core at intervals, and the first pressing plate and the second pressing plate are arranged on the baffle plate. The first pressing plate is fixedly installed between the rotor shaft unit and the upper end of the rotor core and just exposes the upper opening of the magnetic steel groove, and the second pressing plate is fixedly installed between the rotor shaft unit and the lower end of the rotor core and completely covers the lower opening of the magnetic steel groove. The baffle plate is fixedly installed on the first pressing plate and can shield the upper opening of the magnetic steel groove. After the scheme is adopted, the assembling efficiency of the rotor can be effectively improved, the problems of falling apart of the rotor punching sheets and rebounding of the magnetic steel in the assembling process are avoided, and the firm rotor structure can effectively prolong the service life of the rotor.
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