一种电机转子

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By using a threaded tube and threaded groove connection design, combined with a gripping sleeve, cover, pin, and elastic washer, the loosening problem caused by assembly force during rotor assembly is solved, achieving a firm connection between the shaft and the rotor core and improving the structural strength of the motor rotor.

CN224520796UActive Publication Date: 2026-07-17SHANGYU XINHE ELECTROMECHANICAL CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SHANGYU XINHE ELECTROMECHANICAL CO LTD
Filing Date: 2025-08-15
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

During the assembly process, the existing rotor is prone to local deformation of the shaft hole due to excessive assembly force, resulting in uneven mating surfaces, gaps, and affecting the tightness and structural strength of the shaft.

Method used

The connection method of threaded tube and threaded groove is adopted. The first connecting shaft and the second connecting shaft are respectively inserted into the two ends of the shaft hole. The threaded connection of the threaded tube and the threaded groove, combined with the design of the grip sleeve, the cover, the pin and the elastic washer, realizes a firm connection between the rotating shaft and the rotor core.

Benefits of technology

This achieves a convenient and secure connection between the shaft and the rotor core, preventing loosening and ensuring the structural strength and assembly stability of the motor rotor.

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Abstract

本实用新型公开了一种电机转子，涉及电机技术领域，其技术方案要点是：包括转子铁芯和转轴，转子铁芯中心位置开设有轴孔，转轴包括分别用于插入轴孔两端的第一连接轴和第二连接轴，第一连接轴和第二连接轴上均设置有连接件，连接件包括螺纹管，转子铁芯两端均开设有与螺纹管匹配的螺纹槽。本实用新型的电机转子通过螺纹管与螺纹槽的螺纹连接，即可实现转轴在转子铁芯上的牢固连接，操作较为便捷简单，能够避免转轴松动，保证了装配的牢固性，从而保证了电机转子的结构强度。

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Claims

1. An electric machine rotor comprising a rotor core (1) and a rotor shaft, the rotor core (1) having a shaft hole (2) in its center position, characterized in that: The rotating shaft includes a first connecting shaft (3) and a second connecting shaft (4) for inserting into the two ends of the shaft hole (2). Both the first connecting shaft (3) and the second connecting shaft (4) are provided with connecting parts. The connecting parts include threaded tubes (5). Both ends of the rotor core (1) are provided with threaded grooves (6) that match the threaded tubes (5).

2. An electrical machine rotor according to claim 1, characterized in that: The connector also includes a grip sleeve (7), on which a cover (8) is provided. The threaded tube (5) is fixedly connected to the cover (8), and both ends of the rotor core (1) are provided with slots (9) for embedding the cover (8).

3. An electrical machine rotor according to claim 2, characterised in that: The grip sleeve (7) has several anti-slip grooves on its side wall.

4. An electrical machine rotor according to claim 1, characterized in that: A pin (10) is connected to the first connecting shaft (3), and a socket (11) for inserting the pin (10) is provided on the second connecting shaft (4).

5. An electrical machine rotor according to claim 4, characterised in that: The pin (10) is provided with an elastic gasket (12), which is made of rubber material.

6. An electrical machine rotor according to claim 1, characterized in that: Both the first connecting shaft (3) and the second connecting shaft (4) are made of stainless steel.