Fully mechanized mining face hydraulic support beam-type retracting device

Abstract

The invention relates to a coalmine fully mechanized mining complete equipment retracting device and particularly relates to a fully mechanized mining face hydraulic support beam-type retracting device which can be used for solving the problems such as high potential safety hazard, high labor intensity, slow retracting speed and the like caused by the adoption of a winch and a steel wire rope for traction in the prior art. The device comprises at least three retracting shield supports, wherein each retracting shield support comprises a base, a front connecting rod, a rear connecting rod, a shield beam, a top beam and an upright, and a push rod and a push oil cylinder are arranged in each base; the device also comprises a rigid triangular beam-type retracting device composed of a cross beam, a longitudinal beam and an inclined breast beam; a guide sleeve is arranged at the outer side of the base of the lateral retracting shield support; the longitudinal beam is arranged in the guide sleeve in a penetrating manner and is provided with a chain adjuster, and the chain adjuster is provided with a chain; and the power output end of the push rod of each retracting shield support is hinged with the cross beam. By utilizing the device, a support to be retracted can be retracted through self movement, the speed of retracting and moving a fully mechanized mining face support to a working face is improved, the labor intensity of workers is alleviated, the production efficiency is improved, the coalmine production safety is enhanced, and the high yield and high efficiency of a fully mechanized working face are improved.

Description

technical field [0001] The invention relates to a retracting device for a complete set of fully mechanized mining equipment in a coal mine, in particular to a hydraulic support beam type retracting device for a fully mechanized mining face. Background technique [0002] Coal mine fully mechanized mining hydraulic support is an important equipment in the complete set of coal mine fully mechanized mining equipment. The withdrawal of fully mechanized mining hydraulic supports is the most intensive task in the withdrawal of fully mechanized mining equipment. Because there are fallen coal gangue and rocks accumulated behind the hydraulic supports, it belongs to the regional geology where the pressure is concentrated. The conditions are harsh. At present, the hydraulic support of the fully mechanized mining face is pulled back by the winch and the wire rope. Since the wire rope is easy to break and fly, there is a great potential safety hazard. In addition, the labor intensity is ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the hydraulic support of the existing fully mechanized mining face is withdrawn mostly by winch and wire rope traction, there are problems such as large safety hazards, high labor intensity, and slow retraction speed, and the like, a hydraulic support beam type hydraulic support of the fully mechanized mining face is provided. Retraction device shortens the relocation assistance time of the hydraulic support in the fully mechanized mining face

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