An automatic telescopic gangue retaining mechanism for coal mines

Through the automatic telescopic gangue blocking mechanism, using hydraulic supports and chain transmission systems, effective protection of coal gangue is achieved, solving the problem of harm to workers caused by rolling coal gangue during maintenance, and improving safety and work efficiency.

CN114526105BActive Publication Date: 2025-09-23ANHUI MINING ELECTROMECHANICAL EQUIP
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Patent Information

Application Number
CN202210337241.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-03-31
Publication Date
2025-09-23
Estimated Expiration
2042-03-31

AI Technical Summary

Technical Problem

During the maintenance of coal mine fully mechanized mining working faces, scattered coal gangue rolls down from above, causing physical harm to workers, affecting the working environment and work efficiency. Existing technologies cannot provide effective protection.

Method used

An automatic telescopic gangue retaining mechanism is designed. It uses a hydraulic support and a chain transmission system. The position is adjusted by a hydraulic rod. The active trolley unfolds the mining protective net, and the chain drives the driven trolley to move horizontally to achieve the maximum deployment area. The protective net is made of high-grade 6063 alumina alloy and hard PVC and has an automatic telescopic function.

Benefits of technology

It achieves effective protection for workers, reduces labor intensity, improves the safety and efficiency of maintenance work, and its compact structure does not affect the normal coal mining of the fully mechanized mining face.

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Abstract

The present invention provides an automatic telescopic gangue retaining mechanism for coal mines, comprising a hydraulic support, wherein the hydraulic support is provided with a plurality of hydraulic rods, the tops of the plurality of hydraulic rods are connected to a boom, a main frame is provided at the bottom of the boom, a driving sprocket box is installed at one end of the main frame, and a driven sprocket box is installed at the other end, a guide rail is provided on the active frame, an active trolley is installed on the guide rail, a plurality of driven trolleys are provided on one side of the active trolley, the bottoms of the plurality of driven trolleys are engaged with a chain, and the bottoms of the active trolley and the plurality of driven trolleys are all connected to a mining protective net, which solves the problem that scattered coal gangue occasionally rolls down from above during maintenance, causing physical harm to workers who are performing maintenance, affecting not only the workers' working environment but also the workers' inability to work normally, thereby forcing the maintenance process to be stopped and greatly reducing work efficiency.
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