Friction corrosion fatigue test device and friction corrosion fatigue test method of heavy-load scraper plate conveyor circular chain

Abstract

The invention discloses a friction corrosion fatigue test device and a friction corrosion fatigue test method of a heavy-load scraper plate conveyor circular chain. The friction corrosion fatigue test device comprises the following modules of a loading simulating system which applies a dynamic tension and an impact load on the circular chain through an electric cylinder and an impact plate; a heating simulating system which heats the inner part of a middle trough simulating box through a fan and a PCT electric heater; a friction simulating system which drives the middle trough simulating box through the electric cylinder for applying a friction force on the circular chain; a corrosion simulating system which is realized through adding corrosion media into the middle trough simulating box; and a monitoring system which realizes monitoring on the dynamic tension, the friction force, the impact load, the temperature, the corrosion wearing rate and the fatigue life of the circular chain through a plate ring tension sensor, a three-dimensional force sensor, a temperature sensor, a temperature control box, an auxiliary electrode, a working electrode, a reference electrode and an electrochemical work station. The friction corrosion fatigue test device and the friction corrosion fatigue test method have advantages of convenient operation, comprehensive and reliable testing result, and important guiding meaning in safe and reliable operation of the heavy-load scraper plate conveyor circular chain in a complicated operation environment.

Description

technical field [0001] The invention relates to the field of mining technology, in particular to a friction and corrosion fatigue test device and method for a circular chain of a heavy-duty scraper conveyor. Background technique [0002] Fully mechanized mining technology is the most advanced underground mining technology today, and the scraper conveyor is one of the key fully mechanized mining equipment. It not only plays the role of coal transportation, but also the running track of the coal shearer. With the continuous development of fully mechanized mining technology, as well as the large-scale and deep mines, the scraper conveyor continues to develop in the direction of high power, long distance and high chain speed, that is, the heavy-duty scraper conveyor. Once the heavy-duty scraper conveyor fails due to failure, it will lead to the shutdown of the coal mining face, which will lead to major economic losses in large coal mines. [0003] As an important part of the tr...

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Problems solved by technology

Therefore, the friction and corrosion fatigue phenomenon occurs in the circular chain of th

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