Control device for automatic tension degree of chain

Abstract

The invention relates to a control device for the automatic tension of a chain, which is suitable for a conveyer on an underground working surface of a coal mine, in particular to a control device for automatic tension degree of a chain, which is characterized by comprising a shift oil cylinder (2), wherein the piston rod of the shift oil cylinder (2) is connected with the shaft of a chain wheel for pushing the chain wheel to make linear translation; the shift oil cylinder (2) is also connected with a hydraulic control unit (4) through a hydraulic pipeline (6); the hydraulic control unit (4) is connected with a controller (5); a pressure sensor (1) and a displacement sensor (3) are also respectively installed beside the shift oil cylinder (2) for detecting the pressure borne by the shift oil cylinder (2) when pushing the chain wheel and the displacement of the shift oil cylinder (2); and the pressure sensor (1) and the displacement sensor (3) are respectively connected with the controller (5). The invention can automatically adjust the tension of the chain and enable the chain to keep in an ideal tension state all the time, thereby increasing the service life.

Description

technical field [0001] The invention relates to a chain automatic tensioning control device suitable for coal mine underground working face conveyors, in particular to a chain automatic tensioning degree control device. Background technique [0002] As the main component of the scraper conveyor, the chain’s tightness directly affects the service life of the scraper conveyor during use. If the chain is too loose or too tight, the wear of the sprocket shaft group and the chain of the scraper conveyor will increase. Even when the working surface conveyor is not working, the chain is always in a tensioned state, which reduces the life of the chain itself. However, the currently used chain tension tester is manual, and the debugging is all done by pulling out and fixing it, and then injecting and fixing it after tightening the chain, and the process is cumbersome. Contents of the invention [0003] The object of the present invention is to provide a chain automatic tension con...

AI Technical Summary

Problems solved by technology

[0002] As the main component of the scraper conveyor, the chain’s tightness directly affects the service life of the scraper conveyor during use. If the chain is too loose or too tight, the wear of the sprocket shaft group and the chain of the scraper conveyor will increase. Even when the working surface conveyor is not working, the chain is always in a tensioned state, and at the same time reduces the life of the chain itself

However, the currently used chain tension tester is manual, and the debugging is done by pulling out and fixing it, and injecting and fixing it after tightening the chain. The process is cumbersome.

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