Light-weight telescopic flexible hydraulic shield support frame

Abstract

The invention discloses a light-weight telescopic flexible hydraulic shield support frame, which is formed by sequentially connecting a top beam at the upper section, a shield beam at the middle section and a tail beam at the bottom end, wherein a guide beam is movably arranged at the front end of the top beam; the upper surface of the guide beam is a sliding surface; the sliding surface and the axial line of the top beam form an included angle; the shielding beam is hinged to the tail beam; a jack is used for supporting between the arm part of the shield beam and the arm part of the tail beam; and the tail end of the tail beam is provided with a slide boot used for sliding on a floor of a coal face. The light-weight telescopic flexible hydraulic shield support frame has the advantages that the support force is greater; the use is more flexible; the application range is wider; the installation and the use are convenient; and the automatic walking and moving can be reached. The light-weight telescopic flexible hydraulic shield support frame is mainly applicable to a false inclined and sharp inclined coal seam with the inclination angle being greater than 45 degrees or even a coal mining working face with the reverse condition, is applicable to a medium-thick coal seam or thicker coal seams, has certain applicability to the coal seam change, is applicable to a work face using inclined or false inclined wall type pitching inclined mining arrangement, and is applicable to a coal seam with a crushed roof.

Description

technical field [0001] The invention specifically relates to coal mining facilities, in particular to a light and simple hydraulic support. Background technique [0002] The demand for coal in my country is increasing, and the corresponding coal mining is also increasing. Steeply inclined thin coal seam reserves occupy a relatively high total coal reserve in my country, especially in the southwest area, where 80% of the mining areas have steeply inclined coal seams. For a long time, the mining of this type of coal seam has been very difficult, with low efficiency, high cost and great pressure on safety. In coal mining at home and abroad, the mining of steeply inclined coal seams is a worldwide problem, and the choice of support in the mining of steeply inclined coal seams is even more difficult. In recent years, my country has developed a self-moving hydraulic support for coal seams with a large dip angle of 60°. However, due to the heavy weight of the support, it is diffi...

AI Technical Summary

Problems solved by technology

However, this kind of adjustable flexible support is mainly used for the mining of large inclined coal seams, and is not suitable for the mining of steeply inclined coal seams.

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