Automatic torque protection device for thickener

Abstract

The invention discloses an automatic torque protection device for a thickener. The automatic torque protection device comprises a motor, a speed reducer, an electronic torque sensor, a shaft coupling, a signal transmitter and a PLC (Programmable Logic Controller) electric control system, wherein the speed reducer comprises a first stage speed reducer and a second stage speed reducer; the motor is connected with the first stage speed reducer; the first stage speed reducer is connected with the second stage speed reducer through the shaft coupling; machine bodies of the first stage speed reducer and the second stage speed reducer are provided with an upper fixing base and a lower fixing base respectively; the upper fixing base and the lower fixing base are connected with the electronic torque sensor; and the electronic torque sensor, the signal transmitter and the PLC electric control system are connected in series. According to the device, a torque is monitored in real time according to an industrial production requirement, an efficient and simple solution having the advantages of reliable and stable work and wide application range is provided; in the entire scheme, a separable structure is adopted, so that convenience is brought to installation and maintenance, and measurement of the torque in different forms is realized; and the device is reasonable in design, is attractive, is convenient and flexible for operating, and contributes to effectively protecting equipment.

Description

technical field [0001] The invention relates to a thickener torque automatic control system, in particular to a thickener torque protection device. technical background [0002] The thickener is the main equipment used in various industries to realize the gravity sedimentation separation of the homogeneous liquid-solid mixture. It is a kind of production equipment with large volume, low power, low speed and high torque. Most of them operate continuously for a long time. , has high requirements for safe operation of equipment. Chinese patent 200410013877.0 discloses a thickener torque measuring device, which is mainly composed of a housing, a splined shaft sleeve, a sliding sleeve, a butterfly spring, a sensing shaft and a torque pointer. The sliding sleeve, butterfly The shape spring is located in the housing, the spline sleeve and the sensing shaft are on the same axis, and pass through the front and rear center holes of the housing respectively, one end of the spline sleev...

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Problems solved by technology

[0003] The present invention overcomes the defects of unstable operation and inconvenient maintenance and replacement in the prior art, and provides a thickener torque automatic protection device with stable working performance and convenient maintenance and replacement

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