electric drum motor

Abstract

The invention provides an electric roller motor, which at least comprises a rotor core, a shaft, a stator fixing block, an exciting winding, 4X stator cores, a bearing and an armature winding, wherein the electric roller motor is of an outer rotor structure; a transmission belt is directly driven by an outer circumference surface of the rotor core; X is a positive integer; each stator core is provided with two stator poles; the rotor core is provided with 9X rotor poles which protrude inwards; the polar distance between two stator poles on the same stator core is equal to that between the rotor poles; an armature coil along the circumferential direction can be sequentially divided into two phases of windings with an electrical angle of 90 degrees. The two phases of windings of the motor can form two isolated channels, and when one channel is in a fault, the other channel can carry out fault-tolerant operation, so that the reliability of a system is improved and the motor can be used for directly driving a roller.

Description

technical field [0001] The invention relates to an electric drum motor, which belongs to the technical field of special motors. Background technique [0002] The electric drum is the main component of power transmission for belt conveyors and hoisting equipment, and is widely used in metallurgy, mining, coal, building materials, electric power, chemical industry and other industries. [0003] The power of the electric drum comes from the motor. 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. The motor of the outer rotor structure can realize the integration of the drum and the motor shell, save the gear reducer, and use one shaft to realize the rotation of the electric drum, so it is beneficial to improve the transmission efficiency and reliability, and save production costs. [0004] At...

AI Technical Summary

Problems solved by technology

[0008] At present, there are research reports on four-phase and five-phase electrically excited double-salient motors, and there are also research reports on six-phase permanent magnet motors and six-phase induction motors, but no research reports on two-phase dual-channel motors have been retrieved so far.

At the same time, the existing literature does not achieve effective isolation between phases, so faulty windings may have a negative impact on non-faulty windings and even cause fault propagation

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