Chain tension automatic adjusting device of scraper conveyer

Abstract

A chain tension automatic adjusting device of a scraper conveyer comprises an adjusting hydraulic cylinder, a hydraulic stabilizing mechanism, a liquid inlet pipe connector, a liquid return pipe connector and a shutdown locking button. The adjusting hydraulic cylinder comprises a right cavity, a telescopic rod and a left cavity. The telescopic rod is connected with a chain wheel of the scraper conveyer. The chain wheel of the scraper conveyer is controlled to move leftwards and rightwards through stretching and retracting of the telescopic rod, so that a chain of the scraper conveyer is tensioned or loosened, and the tension of the chain is adjusted. The hydraulic stabilizing mechanism is connected with the right cavity of the adjusting hydraulic cylinder, the liquid inlet pipe connector and the liquid return pipe connector. Liquid is injected into or discharged from the right cavity through the liquid inlet pipe connector or the liquid return pipe connector, so that liquid pressure in the right cavity is kept in a set range, and accordingly the telescopic rod is controlled to stretch and retract. The chain tension automatic adjusting device can guarantee that the chain of the scraper conveyer always runs at optimal tension, the service life of the chain of the scraper conveyer is effectively prolonged, maintenance frequency is reduced, and maintenance strength is reduced. Besides, production efficiency of a fully-mechanized mining face is effectively improved.

Description

technical field [0001] The invention relates to a chain tension adjustment device, in particular to an automatic chain tension adjustment device for a scraper conveyor. Background technique [0002] In the normal production process of the fully mechanized mining face in the coal mine, due to the change of the geological conditions of the coal seam, the coal cutting technology of the driver of the coal mining machine, the operation technology of the operator of the moving conveyor, and the change of the bending position of the scraper conveyor, etc. The impact, the up and down angle of the scraper conveyor and the angle of front and rear bending have been changing, and the tension of the scraper conveyor chain has also been changing. The tension of the scraper conveyor chain is constantly changing, which leads to fatigue and aging of the steel of the scraper conveyor chain, which greatly shortens the service life of the chain. Moreover, due to the continuous change of the te...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the current coal mining enterprises in the production process of the fully mechanized mining face, the chain tension of the scraper conveyor is constantly changing due to various factors, resulting in many accidents in the operation of the scraper conveyor, short service life, low production efficiency and high maintenance intensity of the working face To solve the technical problem, the present invention provides an automatic adjustment device for chain tension of scraper conveyor

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