Gangue clamping-proof structure for gangue filling tamping mechanism

Abstract

The invention discloses a gangue clamping-proof structure for a gangue filling tamping mechanism, wherein balance beams and telescopic beams are arranged in the gangue filling tamping mechanism; a sliding pair in the length direction is arranged between the telescopic beams and the balance beams; and telescopic beam jacks are hinged between the telescopic beams and the balance beams. The gangue clamping-proof structure is characterized by comprising cover plate assemblies which are connected with the corresponding telescopic beams and slide together with the corresponding telescopic beams. According to the gangue clamping-proof structure for the gangue filling tamping mechanism, the cover plate assemblies at all levels are additionally arranged on the gangue filling tamping mechanism so as to prevent gangues and dust from entering mechanisms at all levels in the filling process and avoid causing filling failure caused by gangue clamping and blocking phenomena; and meanwhile, due to the cover plate assemblies, the convenience is brought for the installation of telescopic jacks at all levels and the maintenance of the whole mechanism.

Description

technical field [0001] The invention relates to a hydraulic support of a comprehensive mechanized coal mining face, in particular to a gangue prevention structure used for a gangue filling and compacting mechanism. Background technique [0002] With the shortage of energy, the pace of coal mining in my country is accelerating day by day, and more and more mines are facing the problem of resource depletion. In order to solve the problem of "three downs" coal pressure. my country has adopted various technical measures such as traditional strip mining, relocation of villages, and filling mining to liberate the "three-down" coal pressing and increase the coal recovery rate. However, with the increase of mining depth, the increase of village relocation costs and the improvement of filling technology, filling mining technology has become a trend of vigorous development. At present, paste filling and gangue filling are generally used for backfilling gobs. The gangue filling hydra...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a tamping mechanism for gangue-filled hydraulic supports. The gangue-preventing structure is to solve the problem of easy entry of coal ash and gangue in the tamping mechanism of gangue-filled hydraulic supports in the prior art. There are technical problems that affect its work due to sundries, and even the tamping is not in place or not firm, and the surface capacity is sunken after filling.

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