Coal mine underground scraper conveyor straightening and personnel locking system

Abstract

The invention relates to a coal mine underground scraper conveyor straightening and personnel locking system which comprises a scraper conveyor chute and a plurality of hydraulic support devices connected with the scraper conveyor chute. Each hydraulic support device comprises a hydraulic support front vertical column. Lifting oil cylinder seats are fixedly arranged at the bottoms of the hydraulicsupport front vertical columns, and push-moving oil cylinder connecting rods at the driving ends of the lifting oil cylinder seats are connected with the scraper conveyor chute; a chute baffle is further arranged on the position, between the lifting oil cylinder seats and the scraper conveyor chute, on the push-moving oil cylinder connecting rods; non-contact distance meters are arranged on the lifting oil cylinder seats, and hydraulic support controllers are arranged on the side faces of the hydraulic support front vertical columns; the non-contact distance meters are used for measuring thedistances between the non-contact distance meters and the chute baffle; and the hydraulic support controllers are used for adjusting the distances between the hydraulic support front vertical columnsand the scraper conveyor chute. According to the coal mine underground scraper conveyor straightening and personnel locking system, the two functions of coal mine underground scraper conveyor straightening and personnel locking can be achieved through a set of equipment.

Description

technical field [0001] The invention relates to the technical field of mine automation and personnel safety protection, in particular to an automatic straightening and personnel safety locking system of a coal mine scraper conveyor. Background technique [0002] Scraper conveyors, shearers, and hydraulic supports are important production equipment for fully mechanized coal mining faces. The coal shearer moves on the chute of the scraper conveyor to cut the coal from the coal wall; the scraper conveyor transports the fallen coal out of the working face, and at the same time provides a movement support track for the shearer; the hydraulic support supports the work Provide support on the surface and move the scraper conveyor. [0003] With the development of the mining industry, new requirements have been put forward for automatic and intelligent mining, which requires coal mining machines, hydraulic supports, and scraper machines to be able to work together and move automatic...

AI Technical Summary

Problems solved by technology

At present, the automatic cutting ability of the coal shearer can be realized, and the automatic movement of the hydraulic support can also be realized. However, when the hydraulic support automatically pushes the scraper conveyor, due to the low precision and reliability of the oil cylinder displacement sensor currently used, it is difficult to repair after damage. Moreover, there are large mechanical gaps and dead zones in the pushing mechanism, which cannot push the scraper conveyor straight enough, and manual correction is required.

This deficiency limits the improvement of the efficiency of automated mining technology and the promotion of automation technology; at the same time, the equipment that operates automatically also poses a security threat to the operators who perform correction tasks

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