SU1221379A1 - Power roof support unit - Google Patents

Description

I

The invention relates to the extraction of minerals by underground mining in cleansing forks using mechanized complexes.

The aim of the invention is to increase the efficiency of attachment of the clearing face by providing a constant force to press the visor against the roof.

 FIG. 1 shows the mechanized support section, general view; figure 2 - section aa in figure 1.

Mechanized support section includes base. 1, the non-movable part 2 of the overlap, the extension part 3 of the overlap, the limiting pin 4, the downhole part 5 of the cantilever, the embossing part 6 of the cantilever, the center 7, the hydrorack 8 and the mechanism 9 for moving the retractable part of the overlap.

Section mechanized lining works as follows.

Depending on the extracted power of the reservoir under the action of the hydraulic stand 8, the non-movable part 2 overlaps with respect to the base 1. The sliding part 3 overlaps while moving relative to the non-retractable part 2 under the action of the movement mechanism 9 to the distance necessary to compensate for the overlap from the bottom plane.

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12213792

The stop pin A, located on the top of the console 6., when moving the sliding part 3 overlaps, moves relative to the 5th guide 7 located on the non-sliding part 2 of the overlap. Restrictor pin 4 prevents the cantilever from tilting into the working space of the support, regardless of the output power and sliding support, due to the interaction with the direction 7, the shape of which is selected from the condition of constant angle of inclination of the console to the formation plane. Due to the location of the limiting pin 4 on the zavalny part of the console 6, the length of the shoulder L from the hinge of the console to the limiting pin 4 remains constant over the entire range of extension, which ensures a constant load on the detachable part 3 of the overlap and the limiting pin 4, as well as a constant Depend on the sliding support, press down the downhole part 5 of the console to 1-fan. Due to this, the fastening of the primitive space of the roof is improved, the possibility of disturbances and dumps is reduced, the safety of work is increased.

In addition, by reducing the loads on the movable part of the ceiling, it becomes possible to reduce its dimensions and reduce the metal intensity of the support section.

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Editor I.Rybchenko

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Figg

Compiled by Z. Vlasova

Tehred N. Bonkalo Proofreader L. Pilipenko

Order 1625/41 Circulation 470Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch gash Patent, Uzhgorod, st. Project, 4

Claims (1)

SECTION OF MECHANIZED FASTENERS, including base, water stand, ceiling, consisting of a non-extendable part, pivotally mounted on the base, a retractable part with a mechanism for moving it, a console having a block and bottom-hole parts and pivotally mounted on the movable part, a restrictive finger and a guide, characterized in that, in order to increase the efficiency of fastening the working face by providing a constant force of pressing the visor to the roof, the restrictive finger FIG. 1 SU .... 1221379