Excitation fault tolerant running electric drum motor

Abstract

The invention provides an excitation fault tolerant running electric drum motor, comprising a drum shell, an outer rotor core, a stator core, an excitation winding, an armature winding and a shaft, and belonging to the technical field of special motors. The outer rotor core is fixed on the drum shell, and 10 convex rotor poles are uniformly distributed on an outer rotor; the stator core is composed of three sector sub cores, and each sub core is provided with two armature stator poles and an excitation stator pole; the pole arc mechanical angles of the rotor poles are 18 degrees, the pole arc mechanical angles of the armature stator poles are 17 degrees, and the pole arc mechanical angle of the excitation stator pole is 34 degrees. The electric drum motor is an electric excitation double-salient motor, can run in a switched reluctance working mode when the excitation winding cannot work normally, and ensures the reliability of an electric drum without increasing the size, weight and structural complexity of the motor.

Description

technical field [0001] The invention relates to an electric drum motor with excitation fault fault-tolerant operation, which belongs to the field of special motors. Background technique [0002] The electric drum is a driving device that combines the motor with the reducer and is installed inside the drum body. It has compact structure, small space occupation, high transmission efficiency, and good sealing performance. It is suitable for harsh environments such as humidity, dust, and explosions. Therefore, as a driving device of belt conveyor or roller conveyor, it is widely used in metallurgy, mining, coal, grain, chemical industry, aviation transportation and other industries, and its role in the national economy can be seen in general. [0003] However, various problems in the use of electric drums will directly threaten the safety of people and equipment, and ensuring the reliable use of electric drums has become an important research topic. As a key component of the el...

AI Technical Summary

Problems solved by technology

[0007] At present, the applicant has searched at home and abroad, but has not yet retrieved the design of a driving motor that utilizes the working principle of the double salient pole of electric excitation and can work normally in the switched reluctance mode when the excitation winding cannot work normally.

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