SU994758A1 - Transverse stability system of units of power support for steep seams - Google Patents

Description

FIELD OF THE INVENTION The invention relates to mining, specifically to devices that ensure the stability of mechanized support sections when. work on a steep seam.

The known mechanized lining for steep seams consisting of sections connected by jacks of movement with an articulated base beam.

The support is moved section by section from the bottom upwards with the support of the movable section onto the unfolded section below 1.

However, in the event of domes over any group of sections, sections that appear to be in a void will transmit the forces that force them to the unpacked section located on the lower border of the dome and having an undisturbed roof over them. Such a phenomenon contributes to the reduction of the sections and makes them difficult to move in the disturbed zone.

Most closely related to the technical essence and the achieved result is a system of transverse stability of mechanized lining sections for steep seams, containing telescopic e-trenches installed in the intersectional gaps between the upper and lower base beams of the lining, and hydraulic control jacks, each of which connects the overlap of one of the sections with telescopic stand t2l.

A disadvantage of the known -system of the stability of the sections is its unsuitability for the supports of the supportive supporting type due to the fact that

10 that the position of the attachment point of the hydraulic control jack to the overlap with respect to the upper base beam varies with the thickness of the reservoir, which in turn leads to

15 to the splices of movable sections.

In addition, the reliability of the sections is reduced due to the presence of a significant number of telescopic struts.

20

An inventive invention is to increase the reliability and efficiency of a sietema with brakes of a supportive supporting type.

This goal is achieved by

25 that in the system of lateral stability of mechanized support sections for steep seams containing telescopic racks installed in the intersectional gaps between the upper

30 and lower base1l- "and beams lining, and

control hydraulic jacks, each of which connects the overlap of one of the sections with the telescopic stand, the telescopic stand is connected to the overlap of two adjacent sections, and the control hydrojacks are connected to the overlap of the sections with shiir-shpuntovymi links, provided with clamps,

FIG. 1 shows a mechanized Hart lining system with lateral stability, view from the side of the bottom; in fig. 2 is a view A of FIG. one; FIG. 3 is a section B-B in FIG. one; in fig. 4 view B in FIG. 2; in fig. 5 is a section of YYD in FIG. 3} in FIG. 6 is a section d-d in FIG. 2; in fig. 7 is a view E of FIG. 2

The lateral stability system consists of 1 control hydraulic jacks connecting the overlaps of 2 single-post support-supporting lining sections with telescopic struts 3 installed in the intersectional gaps and hinged to the skis 4 of the lower base beam, each telescopic strut connected to the overlaps of two adjacent sections. The upper ends of the telescopic struts are connected by links 5, forming the upper base beam.

The jacks 1 are fastened to the ceilings by means of hinged joints, including a bracket 6 and a guide 7 rigidly mounted on the ceiling 2, to which the bracket is attached with a tongue-and-groove joint and fixed with fingers 8.

The sustainability system works as follows.

During the movement of the support sections, successively from bottom to top, each movable section is prevented from tilting by the hydraulic jack 1 of the control connecting its overlap to the telescopic stand 3, and the piston and rod cavities of all hydraulic jacks are locked with hydraulic locks. Thus, the force tilting the section is transmitted through the links 5 and the hydraulically locked hydraulic jacks 1 to all the other unfolded lining sections.

In case of deviation of the section being moved from the normal position, the latter is restored by its hydraulic control jack.

The movement of the base beam to the bottom is made frontally. Piston and rod cavities of all control hydraulic jacks are connected to the drain, and the holding 5 of the connection from moving in the direction of the formation

It is carried out with the help of a single hydraulic control jack, the piston and rod cavity of which remain hydraulically locked. In the case of a change in the power of the plate, the bracket 6 is mounted on the guides 7 in a position that, at a given formation thickness, the symmetric arrangement of the points of the hydraulic jacks 1 relative to the connections 5 at the beginning and at the end of the sections stroke, and fixing the brackets 6 with the fingers 8.

The proposed stability system is more reliable in operation due to the reduction in the number of telescopic racks used, as well as in connection with the possibility of adjusting the place of attachment of hydraulic control jacks to the ceilings.

Claims (2)

Invention Formula The system of transverse stability of mechanized roof supports for steep seams, comprising telescopic pillars installed in the intersectional gaps between the upper and lower base beams of the support, and hydraulic control jacks, each of which connects the overlap of one of the sections with a telescopic pillar, characterized in that 0 in order to ensure the reliability and efficiency of its work with support-type support brackets, each telescopic column is connected with the overlap of two adjacent sections, and 5 hydraulic control jacks are connected to the overlap of the sections by means of hinged shunt links equipped with clamps. Information sources, 0 taken into account during the examination 1. Krylov V.F. and others. Directions of complex mechanization of development of steep and inclined seams. M., Nedra, 1974, p. 63-65. e 2. USSR author's certificate 279545, cl. E 21 O 23/00, 1969 (prototype). 0m. f fftf fTO e Cyfff