Hydraulic bracket pushing mechanism and hydraulic bracket

Abstract

The invention provides a hydraulic bracket pushing mechanism, which is used for pushing a hydraulic bracket. The hydraulic bracket pushing mechanism comprises a pedestal, a pushing oil cylinder, a pushing rod, a pedestal gap bridge and a pedestal lifting device, wherein one end of the pushing oil cylinder is connected with the pedestal; one end of the pushing rod is connected with the pushing oil cylinder in a matching way; the pedestal gap bridge is arranged on the pedestal; one end of the pedestal lifting device is rotatablely connected with the pushing oil cylinder, and the other end of the pedestal lifting device is rotatablely connected with the pedestal; when the hydraulic bracket works, the pedestal lifting device is slantwise arranged on the pedestal gap bridge; when the hydraulic bracket is pushed, the pedestal lifting device is driven by the pushing oil cylinder to erect and the pedestal is lifted by the pedestal lifting device. The invention also provides the hydraulic bracket. According to the technical scheme provided by the invention, the pedestal lifting oil cylinder can be slantwise arranged and automatically lifted to perform pedestal lifting operation through a triangular pedestal lifting connecting rod, the structure is simple, the occupied space is small, and the problem of difficulty in pushing of the hydraulic bracket of thin coal seam is solved.

Description

technical field [0001] The invention relates to machinery and equipment in the field of coal mining, and more specifically, to a hydraulic support pushing mechanism and a hydraulic support. Background technique [0002] At present, my country's fully mechanized mining technology has become increasingly mature in terms of thin coal seam mining. However, for fully mechanized mining support, due to the small space for coal discharge, when encountering a soft coal seam, the muddy rock layer of the floor is easy to fill the base, making it difficult to move the support and increasing the workload of workers to clean up the slime. [0003] Medium-thick coal seam hydraulic supports can be easily solved by adding a bottom-lifting mechanism, but for thin-coal seam supports, traditional bottom-lifting devices cannot be installed due to space constraints. [0004] Thin coal seams account for more than 46% of my country's proven coal reserves, and thin coal seam mining plays an importa...

AI Technical Summary

Problems solved by technology

[0005] Therefore, because the thin coal seam hydraulic support cannot be equipped with a bottom lifting device, it will cause coal slime to block the middle of the base and make it difficult to move the frame, which has become an urgent problem to be solved by those skilled in the art.

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