SU1507981A1 - Face-end support - Google Patents

Abstract

The invention relates to the mining industry, namely to the fixture of the preparatory and cleaning workings. The goal is to provide the possibility of using lining in conditions of weak puchuyuschih rocks of the soil. The attachment bracket consists of inner and outer frames connected over the top with a hydrojack. The frames are made of tops mounted on transverse beams and hydraulic posts (G) 3 and 4. The front G 3 of each frame is shorter than the rear G 4 and interconnected by the transverse support bar 18. The rear G supports 4 are made in the form of longitudinal beams ( PB) 19, at the front ends of which rear G 4 are secured. Upper 9 are pivotally connected to PB 19 by spacer jacks 20. The bottom conveyor movement is carried out by lower hydraulic jacks 21 moving along PB 19. and produces it n a full width working area. The soil rocks are loaded by the vehicle to the downhole conveyor. After the restoration of the roadway, first move the inner frame, and then the outer one. 6 Il.

Description

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The invention relates to the maintenance of reusable drifts, fixed with a metal arch ductile lining and having weak rocks in the soil, prone to heaving and disintegration.

The purpose of the invention is to provide the possibility of using lining in conditions of weak puchuyu rocks of the soil.

FIG. 1 depicts the mapping of a supported drift with lava, top view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a view B in FIG. 2; in fig. 4 — coupling support, general view; in fig. 5 is a sectional view BB in FIG. four; in fig. 6 is a view of FIG. four.

When installing the cleaning equipment in the adjoining lava on the interface with the gateway, a trench 1 is formed in the soil 2 drifts between the front 3 and the rear hydraulic supports of the walking support mate. The bottom of the tnshei 1 is located below the soil 2 by the amount of the required subdick.

Drive 5 and linear sections 6 of the downhole conveyor are mounted in the trench.

In the process of processing the lava after excavation of a strip of coal in the bottomhole, the mining mass in the soil 2 drifts is excavated by the executive body 7 of the shearer 8, moving along the face of the bottomhole conveyor.

A horn mass from the soil 2 drift is loaded onto the downhole conveyor by the same executive body 7, then reloaded onto a belt conveyor mounted on the conveyor drift.

With a high content of rock in the soil of a supported drift, the mountain mass is unloaded from the conveyor belt into the trolley with a one-way plow unloading device installed in front of the discharge end of the conveyor.

The joint support frame contains tops 9-12 and transverse beams 13-16. The tops of the 10 and and are connected with the transverse beams 13 and 15 and form the inner frame lining. The tops 9 and 12 are connected to the cross beams 14 and 16, forming the outer frame. Each frame rests on two front hydraulic legs 3 and two rear hydraulic legs 4. Front hydraulic legs 3 are made shorter than rear hydraulic legs 4. The external and internal frames are connected by a hydraulic travel axle 17. In each frame, the front hydraulic legs 3 rest on a common support-transverse support girder 18. Each rear hydraulic post 4 rests on a short support — a longitudinal beam 19. The rear arms of the tops are pivotally connected to the longitudinal beams 19 by means of spacer hydraulic jacks 20. Hydrodoves are fixed along the longitudinal beams Mtrats of movement 21 intended for shifting the conveyor and support.

Depending on the specific conditions, the hydraulic jacks of movement 21 and the hydraulic jacks 20 may not be installed on each beam 19;

The coupling support works as follows.

After excavation of a strip of rock mass in the soil, the drift of the shearer leaves into the lava and on the drift produces a frontal movement of the bottomhole conveyor. In this case, both frames of the walking support mating are in the open state, and the spacing rods. 20 jacks pushed to the limit.

After shifting the downhole conveyor, the hydraulic jacks of the movement 21 are retracted and the walking support is shifted.

First, the strut is removed from the inner frame, reducing the hydraulic legs under the transverse beams 13 and 15 until the tops 10 and 11 fall onto the transverse beams 14 and 16 of the outer frame, and the transverse support beam 18 and the longitudinal beams 19 detach from the soil. In parallel, the spacer jacks 20 are reduced. Then, by pushing the hydraulic jack 17, the inner frame is moved forward and retracted by hydraulic posts and spacer jacks. The outer frame of the lining move the same way, while reducing the hydraulic jack 17 movement.

After the expansion of the outer frame, the advancing of the walking support mating is completed.

Pick-up of soil supported by drift and loading of the rock mass by the executive body of the shearer during the mining of the lava excludes the use of additional equipment and personnel to carry out these operations before the mining of the lava.

Claims (1)

Invention Formula The coupling support, which includes the inner and outer frames with tops mounted on the transverse beams and connected front and rear hydraulics with their supports, and movement hydraulic jacks, one of which is fixed on the transverse beam frames, is characterized in that the possibilities of using it in the conditions of weak pulling rocks of the soil; the front hydrorails are shorter than the rear hydrorails and are connected between. by means of a transverse support beam, and the supports of the rear hydraulic legs are made in the form of longitudinal beams, at the front ends of which rear hydraulic legs are mounted, and their rear ends are pivotally connected to the tops by means of expansion jacks, while other hydraulic jacks of movement are located along the longitudinal beams and fixed to of them. s /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// /// // /// /// 0U9.2 FIG. Bb L J8 FIG. five 5g VidG