Self-moving type termination point hydraulic support based on parallel mechanism and application of termination point hydraulic support

Abstract

The invention relates to a self-moving type termination point hydraulic support based on a parallel mechanism and application of the termination point hydraulic support. The self-moving type termination point hydraulic support comprises a front hydraulic support body and a rear hydraulic support body, wherein the front hydraulic support body and the rear hydraulic support body are connected through a pushing jack, the front hydraulic support body comprises two parallel front bases, a base connecting rod, a front top beam and front standing columns, one sides of the two front bases are fixedly connected through the base connecting rod, the plurality of front standing columns are symmetrically disposed on the two front bases, and two ends of the front standing columns are respectively hinged to the front top beam and the front bases. The self-moving type termination point hydraulic support has the advantages that the front hydraulic support body adopts the parallel mechanism, the front top beam is allowed to have six freedom degrees and can reach any spatial positions, the front top beam can be well combined with a top plate, top plate completeness is maintained greatly, the support is large in support force and support face, good in support effect and capable of achieving integral self-moving through hydraulic drive, manual carrying is not needed, working strength is lowered greatly, and work efficiency is increased evidently.

Description

technical field [0001] The invention relates to a self-moving terminal hydraulic support based on a parallel mechanism and its application, belonging to the technical field of mine equipment. Background technique [0002] The intersection of the roadway and the cut hole on the coal mining face of the coal mine is called the end, and the support used for the end is called the end support. The end part is the intersection point of equipment such as scraper conveyor and transfer machine, and it is also the throat part of pedestrian passage, ventilation, material transportation and coal transportation. The quality of the end support is the key to determine whether the working face can operate normally. According to the statistics of relevant safety departments, personal casualties at the end account for more than 60% of underground accidents, which must be paid attention to. [0003] At present, the end of the coal mining face is still mostly supported by a single hydraulic pr...

AI Technical Summary

Problems solved by technology

[0003] At present, the end of the coal mining face is still mostly supported by a single hydraulic prop with an anchor net. This support method has many deficiencies. Difference

Moreover, when the support, scraper conveyor, and transfer machine move forward with the cutting hole, it is necessary to unload the pillars at both ends of the cutting hole one by one, and then manually transport them to the section to be mined, and then carry out pressurized support again; due to these The weight and length of a single hydraulic prop are large, and it is very difficult to carry it in a limited space. The labor intensity of the workers is high, and the work efficiency is low, which is not conducive to coal mine production; some mines use ordinary hydraulic supports for advanced support, but Since the current hydraulic support is a four-bar linkage mechanism, the mechanism itself has certain limitations, such as relatively large internal force, and the roof beam and roof cannot fit well, which may easily cause the roof of the roadway to break and cause serious damage. of security incidents

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