Automatic control device for preventing rotating part from stalling

Abstract

The invention relates to the technical field of automatic control devices, and discloses an automatic control device for preventing a rotating part from stalling. The automatic control device comprises a working part, symmetrical positive plates are fixedly connected to the top of the working part, and symmetrical negative plates are fixedly connected to the top of the working part; symmetrical piezoresistors are fixedly connected to the top of the working part, symmetrical liquid cavities are formed in the top of the working part, electrode columns are fixedly connected to the tops and the bottoms of the liquid cavities, and first springs are fixedly connected in the electrode columns. According to the automatic control device for preventing the rotating part from stalling, through the mutual cooperation of the positive plates, the negative plates, the piezoresistors and a dielectric plate, the relative area between the positive plates and the negative plates is minimum, the voltages at the two ends of the piezoresistors are smaller than the minimum path voltage, the piezoresistors are powered off, and an electromagnet is controlled to stop working; a clamping block moves under the action of the elastic force of a second spring, so that the clamping block is separated from a clamping groove, a rotating shaft idles, the anti-stall function of a product is achieved, and the use safety of the product is guaranteed.

Description

technical field [0001] The invention relates to the technical field of automatic control devices, in particular to an automatic control device for preventing a rotating part from stalling. Background technique [0002] Automatic control refers to the use of external equipment or devices to make a certain working state or parameter of a machine, equipment or production process automatically operate according to a predetermined law without direct participation of people. During the process, a rotating device is often used, and the rotating speed of the rotating device often exceeds the normal working range, resulting in accelerated wear between parts and increasing the risk of operation, which cannot meet the needs of users. [0003] During the use of the rotating device, due to the fluctuation of the internal current and voltage of the product or the disturbance of the external force, the rotating speed will exceed the normal working range. If it continues to be used under th...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an automatic control device for preventing the rotating part from stalling, which has the advantages of automatic monitoring of the rotating speed and automatic protection against stalling, and solves the problems of easy stalling and damage of ordinary rotating devices

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