Gob-side entry retaining work mould base

Abstract

The invention discloses a gob-side entry retaining work mould base, which effectively conquers the defect that template integrity is low in prior suspension equipment. The mould base comprises coal mining equipment, a baffle support frame and a filling mould box, wherein, the coal mining equipment is paved along work surface; the baffle support frame consists of a top beam and a bottom base, is connected with a four bar linkage mechanism and is supported by a hydraulic vertical column; and the filling mould box is arranged right ahead along a gob entry retaining filling wall body. The technical point is as follows: the bottom base of the baffle support frame is connected with the filling mould box by a hydraulic cylinder and a connecting head; the baffle support frame is provided with an upper baffle and a lower baffle by the rear part of one side of the gob; the tail end of the top beam is joggled with the end part of the rear top beam; and the bottom part of the top beam is joggled with the rear part of the bottom base by the hydraulic vertical column. The invention has reasonable design, safe and convenient operation, leads a mould setting device and a mould moving device not only to be internally independent but also to match with the coal mining equipment so as to carry out normal coal mining and roof support parallel job, obviously improves integrity and the degree of mechanization, and can form a strip-shaped regular wall body at the isolated gob near the entry.

Description

technical field [0001] The invention relates to a support device for underground coal mining in coal mines, in particular to a support device suitable for any form of gob-side retaining, roadside filling and other normal coal mining support operations in the mining area. One side constructs the gob-side entry retaining formwork for filling the wall. The device belongs to the field of coal mining machinery manufacturing. Background technique [0002] At present, according to relevant literature reports, for domestic and foreign mining without coal pillars (also known as gob-side entry, roadside filling or Y-shaped ventilation), the popular method of coal mining in coal seam mining face is to gob-side entry and filling Supporting methods, such as the patent publication No. CN101117890A "Supporting method for roadway retaining along the gob", discloses a method for building a wall on one side of the roadway. This method mainly states the material and structure of the wall bod...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a formwork for gob-side retaining operations, which effectively overcomes the shortcomings of existing support devices such as weak template integrity, resulting in paste overflow and equipment damage, etc., and its structural design is reasonable and easy to operate Safe and convenient, the vertical formwork and the formwork transfer device are independent of each other and connected to each other, which can cover and cooperate with the working face conveyor, coal shearer, working face hydraulic support, etc. to carry out normal coal mining and roof support in parallel, significantly improving Its integrity and degree of mechanization can also isolate the gob area beside the roadway to form a filling cavity, and the covering paste concrete will solidify and harden in the filling cavity. A strip-shaped regular wall is formed between the lower roofs

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