Integral top beam combined suspension hydraulic support of moving frame with pressure and method of moving frame with pressure

Abstract

The invention discloses a sliding advance of support integrated top beam combined suspension hydraulic bracket and a method for sliding advance of support and belongs to the technical field of mine support devices. The sliding advance of support integrated top beam combined suspension hydraulic bracket comprises a support beam, a top beam, hydraulic stand columns and a top beam moving jack, wherein the lower end of the top beam is hinged to four hydraulic stand columns; a hydraulic control system formed by the four hydraulic stand columns comprises a high-pressure liquid supply pipeline and a low-pressure liquid supply pipeline; the high-pressure liquid supply pipeline is used for ensuring normal working support force during normally supporting by the hydraulic stand columns; the low-pressure liquid supply pipeline is used for providing support force for moving while supporting a top plate by the hydraulic stand columns during sliding advance of support by the hydraulic stand columns; the sliding advance of support of the integrated top beam combined suspension hydraulic bracket is completed by the four hydraulic stand columns. The technology of the invention overcomes the technology prejudice and solves the problem of the sliding advance of support of the integrated top beam combined suspension hydraulic bracket; the support of the bracket is improved; the bracket moving speed is increased; the application range of the device is widened.

Description

technical field [0001] The invention relates to mining equipment, in particular to a combined suspension hydraulic support for supporting coal mining working faces in underground coal mines. Background technique [0002] When the existing integral top beam combined suspension hydraulic support is used in coal mines, although it has the advantages of simple structure, good overall stability, reduced labor intensity of workers, improved labor efficiency, and less capital investment in equipment. Because when the support moves forward in the working face, the hydraulic prop must be retracted, and the roof beam and the roof of the working face can be separated before the frame can be moved. For the unstable type I roof and the roof with a false roof that is easily broken; The roof is repeatedly supported by the bracket, which is easy to cause the roof to be broken, leaking and falling, and the suspension hydraulic support equipment cannot be used normally in these occasions, and...

AI Technical Summary

Problems solved by technology

Because when the support moves forward in the working face, the hydraulic prop must be retracted, and the roof beam and the roof of the working face can be separated before the frame can be moved. For the unstable type I roof and the roof with a false roof that is easily broken; The roof is repeatedly supported by the bracket, which is easy to cause the roof to be broken, leaking and falling, and the suspension hydraulic support equipment cannot be used normally in these occasions, and the scope of use is limited.

[0003] In order to solve the problem that the existing integral roof beam combined suspension hydraulic support cannot be used in the mining face with unstable roof; our company has begun to design several schemes; However, the result is that the structure is complicated, the conversion operation is cumbersome, the equipment cost is increased, and the limited space under the equipment is occupied, and the effect is not ideal.

Images