SU1335710A1 - Mine roof support for inclined beds - Google Patents

Abstract

The invention relates to the underground mining of coal deposits, namely, the management of the roof in the downhole of inclined seams. The support includes hydroracks 1 and beams in the form of fixed 2 and fixed 3 parts. The fixed part 3 is a guide and is made of two rigidly connected ends of the grades 7. The inner sides of the grades 7 have a convex shape, and the contact surfaces of the sliding part 2 of the beam on the side of the end 8 have a concave shape. The sliding part 2 of the beam is connected with the downhole conveyor 4 and the hydraulic jack 5. The guide 3 is connected with the hydroresistant 1 and the shifting hydraulic jack 6. The elimination of overturning of the girders 1 during the shifting is ensured by the fact that the connection of the telescopic sliding beams with the bottomhole conveyor 4 and the hydraulics 1 has articulation only in the plane of the formation. 6 Il. (L Fig. 1

Description

11335710

The invention relates to underground

the development of coal deposits, and more specifically to the management of the roof in the clearing of the slopes of inclined seams

four

: The purpose of the invention is to enhance the functionality and increase the stability of the support

 Figure 1 shows the position of the lining after her shifting, view in plan; figure 2 - the same, after shifting, conveyor, view in Phgan; na fig.Z - section, aa in figure 1; in fig. section BB in figure 1; on fig.Z - section bb In fig.

Shaft support for inclined formations consists of hydraulic posts 1, telescopic flat beams, including pull-out 2 and fixed 3 parts, which are guides. The movable part 2 of the beams is pivotally connected to the bottomhole conveyor 4, and the fixed part 3 (guide) is also pivotally connected to the hydraulic post 1. The sliding part 2 of the beam is additionally connected to the bottomhole conveyor 4 by a diagonally arranged and pivotally connected hydraulic jack 5, and the fixed part 3 is additionally pivotally connected to the hydraulic jack 6- advancing and consists of rigidly connected at the ends of the t 7, the inner sides of which have a convex shape in contact with the th 7 of the end. 8 of the exhaust part 2 beams are made of a concave shape.

In the process of operation, as the combine passes, the working fluid is supplied to the piston cavities of the hydraulic jacks 6 and the conveyor 4 is moved, while the hydroracks 1 are unstuck. Following the movement of the conveyor 4, they alternately remove the thrust from the hydraulic rails 1 and supply the working fluid to the rod cavities of the hydraulic wrist, the tone 6 of the advancing forces the hydraulic rails 1 to be slaughtered, and then burst them between the lateral rocks. After the conveyor 4 has been moved along it, a new row of bottomhole support 9 is installed from the posts in reserve, then, before moving the hydraulic posts 1, they remove the posts 9 of the third row, which are; become backup and thus in the face there are constantly working at least three rows of individual supports 9,

0

five

0

five

0

five

five

0

0

five

During the transfer of hydraulic rails 1 in order to eliminate the sliding down of the formation downhill, the piston and rod cavities of the diagonally placed hydraulic jacks 5, which with the help of telescopically sliding beams hold the hydraulic posts 1, are closed and, vice versa, so that the hydraulic jacks 5 do not prevent the hydraulic rails from turning during bending of the conveyor 4, both of their cavities are open, and the elimination of overturning of the girders is ensured by the fact that the connection of telescopically sliding flat beams with the bottomhole conveyor 4 gidrostoykami pgarnirnost 1 has only a stratum plane.

In case of violation of the fastening passport due to the curvature of the bottom, slipping of the conveyor or for other reasons, its restoration is provided by adjusting the location of the hydraulic legs 1 by folding or sliding the diagonally placed hydraulic jacks 5.

If during the shifting of hydraulic girders 1 in the contour of their base or top landing, there will be an obstacle in the form of wooden posts of additional crush or lumps of collapsed rock, turning on the hydraulic jack 5 for folding or spreading depending on the location of the obstacle relative to Hydrostores 1 allows you to bypass the obstacle without additional manual work.

Claims (1)

Formula of the Invention Mine lining for inclined formations, comprising a hydraulic jack of a slide, one end of which is pivotally attached to a conveyor, the other is connected to a hydraulic rack5 mounted in a guide beam, parallel to the hydraulic jack of the slide, connected to it and pivotally to a conveyor and hydraulic rack. by means of a diagonally located hydraulic cylinder - additionally with a conveyor, characterized in that, in order to expand the functionality and increase stability, the guideway is made of two rigidly connected at the ends of rods, the inner sides of which have a convex shape, and contacting them with the surface of the beam at one end formed concave shape, with the other end of the beam attached to the conveyor, one of the ends of the guide - to the base of the hydraulic post, and at the other end of the other end of the shifter jack. / , G7 fig.g Aa 2 3 Fig.Z bb eight Phi1. Phage. five HG Fig.b