Motor protection device with overload protection

Abstract

The invention provides a motor protection device with overload protection, and relates to the technical field of motor equipment. The motor protection device comprises a driven shaft, clamping grooveswhich are uniformly distributed are formed in the inner side of the driven shaft, an output shaft is clamped on the inner wall of the driven shaft, and electromagnets I which are uniformly distributed are fixedly connected to the middle part of the output shaft. According to the motor protection device with overload protection, the clamping blocks are matched with the electromagnets I for use; when the motor is suddenly jammed, the electromagnets are energized, the magnetic blocks I can move towards the middle part of the output shaft under the action of opposite attraction and drive the movable block to move towards the middle part, the limiting block can shrink into the clamping block under the action of the third spring, at the moment, the clamping block can stretch out and draw back in the output shaft and retract into the output shaft under the action of the first magnetic block, the output shaft can freely rotate in the driven shaft, and thus the effect of protecting the motor is achieved, overload work of the motor is avoided, the service life of the motor is effectively prolonged, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of motor equipment, in particular to a motor protection device with overload protection. Background technique [0002] The appearance of the motor effectively improves labor efficiency, reduces the labor intensity of employees, and the production cost and maintenance cost of the motor are lower, which is conducive to saving production costs. [0003] However, during the use of the current motor, the phenomenon of sudden jamming often occurs. The motor is still in the energized state, but it cannot rotate. At this time, the motor is in an overloaded state, and the loss of the motor is relatively large. The impact of life and parts wear is relatively large, which will lead to frequent replacement of the motor and increase production costs. [0004] Therefore, we propose a motor protection device with overload protection to solve the above problems. Through the use of the block and the electromagnet 1, the eff...

AI Technical Summary

Problems solved by technology

[0003] However, during the use of the current motor, the phenomenon of sudden jamming often occurs. The motor is still in the energized state, but it cannot rotate. At this time, the motor is in an overloaded state, and the loss of the motor is relatively large. Life and wear of parts are relatively large, which will lead to frequent replacement of motors and increase production costs

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