An electric drum permanent magnet motor

Abstract

The invention discloses an electric roller permanent magnet motor, which belongs to the technical field of electric rollers. The electric roller permanent magnet motor comprises a shaft, a roller, a stator core, armature windings, excitation windings, permanent magnets, rotor teeth and a bearing, wherein the circumferential surface of the roller is uniformly distributed with 5K rectangular holes;the stator core is formed by 3K uniformly-distributed [-shaped sub stator cores; two ends of each sub stator core are provided with two stator teeth respectively; all stator teeth face the outer sideof the circumference, and the distance between the stator teeth at two ends of the same sub stator core is smaller than the axial length of the rectangular hole of the roller; the surface of the stator tooth at one end of the sub stator core is provided with a permanent magnet; and each stator tooth is wound with an integrated armature winding. Thus, integrated design between the roller and a driving motor can be effectively realized, cooling is easy, advantages of integrated excitation can be made full use of, and high application value in the electric roller is realized.

Description

technical field [0001] The invention relates to an electric drum permanent magnet motor, which belongs to the technical field of electric drums. Background technique [0002] The electric drum is the main part of power transmission for belt conveyors and hoisting equipment. It has compact structure, small space occupation, high transmission efficiency and good sealing performance, and is suitable for working in humid and dusty environments. The power of the electric drum comes from the motor, and its reliability determines the safe use of the electric drum. [0003] At present, the motor used by most electric drums is an inner rotor motor, which needs to use a gear reducer to transmit power to the outer body of the drum, so the mechanical structure is relatively complicated and the volume is large. For example, the application number is 200910266590.1: a roller motor stator structure. The application adopts a bar-shaped stator core structure, which increases the volume of t...

AI Technical Summary

Problems solved by technology

[0004] At present, the motors used in electric drum tubes are permanent magnet DC motors and asynchronous motors, but DC motors with carbon brush slip ring structures are prone to sparks, which are not suitable for use in high-risk mines. The asynchronous motor has a large current and torque when starting. relatively low

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