SU976087A1 - Powered matching roof support - Google Patents

Description

(54) MECHANIZED STRESS STRIPPING

The invention relates to mining, in particular, to mobile mechanized support of lava against a slope during the development of steep coal seams for an uprising with laying out the worked out space.

The known mechanized lining of the mating, including sections, interconnected by the jacks of movement and containing hydraulic legs, upper and lower hinged bases and a carriage for moving the drive head of the bottomhole conveyor, mounted on the lower base of Cl.

However, securing the carriage of the drive head of the downhole conveyor to the base makes it impossible to use the lining in the ramp, since it does not allow the drive head of the downhole conveyor to be installed and constantly pressed in horizontal position regardless of the change in the formation angle.

Most of the invention, the technical solution is the mechanized lining of the sgr, including the extreme and middle sections, the jacking of the movement and containing the base and the overlap, interconnected by hydraulic posts.

and a carriage for moving the drive head of the downhole conveyor installed in the guide plates of the middle section with the possibility of moving perpendicular to its longitudinal axis 12. A disadvantage of the known lining is the distortions of the drive head of the downhole conveyor when changing the dip angle of the reservoir, which prevents its use on steep seams with varying dip angles.

The aim of the invention is to expand the field of application of mechanized support mating on steep seams with varying angle of incidence.

The goal is achieved by the fact that the base of the middle section is made with a number of holes and is additionally associated with overlapping in the zavalny part by means of a pivotally fixed on them a spacer plate with a number of holes, at that plate

25 is hinged in the holes of the spacer frame and the base of the middle section, the guides are made in the form of longitudinal; grooves, and the carriage is made with protrusions placed in

Claims (2)

30 longitudinal grooves. Fig. 1 shows a mating support, top view; figure 2 - section aa in figure 1; FIG. 3 shows the node in FIG. 2. The mechanized lining of the mating contains the extreme 1 and middle 2 sections interconnected by jacks 3 of movement, and a plate 4 for accommodating the drive head of the bottomhole conveyor. Each lining section includes the Overlap 5, the hinged 6c 6 and the hydraulic rack 7. The middle section 2 is equipped with zavalnoy parts of the spacer frame 8. Plate 4 is pivotally fixed to the spacer frame 8 and connected to it and the base, 6 of the middle section 2, in which holes 9 are made, respectively, by hinges 10 and connecting fingers 11 The conveyor is mounted on a carriage 12, which is placed in the upper part 13 of the plate 4, while the upper part 13 has guides 14 with longitudinal grooves 15 in which the projections 16 of the carriage 12 are placed. The operation of the mechanized support is carried out as follows. In the initial position of the hydraulic post 7, the openings between the ceilings 5 and the bases 6 of sections 1 and 2 are removed. After the strip has been dredged, 7 extreme sections 1 are released from the corner posts and they are alternately displaced by means of positioning jacks 3. Then at the same time; with the downhole conveyor, the middle section 2 with the plate 4 is pulled. This maintains the horizontal position of the plate 4, which is adjusted by turning, the latter in the hinges 10 and shifting the connecting fingers 11 in the holes 9. With a possible transverse displacement of the lining, the advances of the carriage 12 with the protrusions 16 remain stationary, and the upper part 13 of the plate freely moves with the support. The proposed implementation of the support lining allows you to use it in the chutes, and also makes it possible to maintain the horizontal position of the carriage advancing the drive head of the downhole conveyor by adjusting the change in its angle of inclination and to ensure that the drive head remains stationary relative to the bottom face conveyor at possible lateral displacement of the support at the moment her shifting. Claims: Mechanized lining of mating, including extreme and middle sections, connected with jacks of movement and containing bases and ceilings connected by hydraulic posts, and a carriage for moving the drive head of the bottomhole conveyor, mounted in the guide plates of the middle section with the ability to move perpendicularly its longitudinal axis, characterized in that, in order to expand its field of application on steep seams with a variable dip angle, the base of the middle section is made from The fibers are additionally connected with the overlap in the zavilnaya part by means of an expansion frame hinged on them with a row of holes, the plate being articulated in the holes of the expansion frame and the base of the middle section, the guides are made in the form of longitudinal grooves, and the carriage is made protrusions placed in the longitudinal grooves. Sources of information taken into account during the examination 1. The author's certificate С СР 659751, кл. E 21 D 11/36, 1974. 2. USSR author's certificate for application number 2928339/03, cl. E 21 D 11/36, 1980 (prototype).