SU909200A1 - Power roof support unit - Google Patents

Description

(54) SECTION OF MECHANIZED STRIP

one

This invention relates to the fastening of coal mines.

The known mechanized lining section includes a base, an overlap containing a fixed part fixed on the base, a sliding part with a mechanism for its movement and a limiting pin, a console mounted hingedly on the sliding part of the overlap having a head and bottom hole part, and a guide which is mounted on console from the side of the C47.

The main disadvantage of this lining section is that the console overlaps during the operation of the lining in difficult geological conditions and overturns into the working space of the lining.

The purpose of the invention is to prevent the downhole part of the console from tilting into the working space of the support.

This goal is achieved due to the fact that in the section of mechanized support, including the base, the overlap containing the non-extendable part fixed on the base, the sliding part with its mechanism of movement and the limiting pin, the console pivotally mounted on the sliding part of the overlap having a bottom downhole and a guide fixed on the console, a limiting pin fixed on the non-sliding part of the ceiling, and a guide placed on the lower part of the console.

FIG. 1 shows the lining section, a general view; in fig. 2 shows section A-A in FIG. one.

The iO lining section consists of the base 1, the non-sliding part of the overlap 2, the sliding part of the overlap 3, the limiting pin 4, the downhole part of the console 5, the intake part of the Console 6, the guide 7, the hydraulic post 8 and the mechanism 9 for moving the sliding part of the overlap.

Section lining works as follows.

Depending on the reservoir capacity to be removed, under the action of the hydraulic stand 8, the non-displaceable part of the overlap 2 rotates relative to the base I. The sliding part of the overlap 3 moves relative to the non-retractable part of the overlap 2 under the action of the movement mechanism 9 to the distance required to compensate for the overlap of the overlap from the bottom plane. Guide 7, located on the tail end of the console 6, when moving the sliding part-overlap 3 mixes with respect to the restricting finger 4. Restrictive pin 4 prevents the console from tilting into the working space of the support regardless of the thickness of the reservoir removed and the extension of the support section. 7, the shape of which is selected from the condition of maintaining the perpendicularity of the console to the bottom plane.

The present invention allows preventing the cantilever from tilting into the working space of the lining, which leads to a reduction in the time spent on additional mounting of the roof and improving the interaction of the console with the roof rocks in the bottomhole formation zone.

Claims (1)

Invention Formula The mechanized support section, comprising a base, an overlap, comprising a non-sliding part fixed on the base, a sliding part with a mechanism for its movement and a limiting pin, a cantilever. mounted hingedly on the sliding part of the overlap, having a dammed, downhole part and a guide, characterized in that, in order to prevent tilting the downhole part of the console into the working space of the lining, the limiting finger is fixed on the non-retractable part of the overlap, and the guide is placed on the dammed part console. Sources of information taken into account during the examination 1. Patent of Germany No. 2322999, cl. E 21 D 19/02, published .28.02.74.