SU1076594A1 - Power roof support unit - Google Patents

Abstract

SECTION MECHANIZED NOA KREPI, including overlapping 4 with a visor, hydraulic post, hydraulic shifter, base with a bracket, inside which is mounted a hydraulic cylinder fixed to it with a support, which in order to improve the interaction of the lining section with lateral rocks by reducing dynamic loads. part of the base due to the redistribution of the reservoir to the soil and the elimination of its creep along the dip of the reservoir, the support of the hydraulic cylinder is made in the form of a punch placed in the Considerations vertical guides with the possibility of penetration into the soil. ,

Description

The invention relates to underground coal mining, and more specifically to the consolidation of working faces with mechanized roof supports.

Mechanized creeps are known, consisting of separate sections, each of which contains a base with a bracket in the zavalny part, to which a horizontal hinge connects the overlap supported by hydraulic racks, the visor, the automatic installation of the visor at a given distance from the bottom plane when the output power changes, Hydrojack travel 1.

The main disadvantage. Such a support section is that the charging arm is a rigid support of the charging support, therefore there were cases of support fixing on hard-to-collapse roofs, moreover, the lack of compliance during sudden dynamic loads leads to the destruction of the support landing support.

Mechanized lining is also known, including, besides the listed elements, a system of vertical compliance of the horizontal hinge of the base bracket 2.

However, this solution has a significant drawback, which is expressed in the fact that the current dynamic loads from the collapsed rocks through the compliance system are perceived by the base of the C-mount support.

Closest to the proposed is the mechanized support section, which includes overlapping with a visor, hydraulic post, hydraulic shifter, base with a bracket, inside of which is mounted fixed on a non-hydraulic cylinder with a support 3).

However, the known device transmits only part of the load to the ground, without pressing into it, and cannot suppress dynamic impacts on the support section. The purpose of the invention is to improve the interaction of the support section with lateral rocks by eliminating the excessive loading of the dammed part of the base and sliding it along the dip of the formation under the action of sudden dynamic loads.

To achieve this goal, in the section of mechanized roof support, including overlapping with a visor, hydraulic post, hydraulic shifter, the base with the bracket, inside which the hydraulic cylinder fixed to it with the support is placed, is made in the form of a punch placed in the mounted on the bracket

the bases of vertical guides with the possibility of penetration into the night.

FIG. 1 shows a section, a general view; in fig. 2--1 is a section A-A in FIG. 1 (different positions of the punch during the operation of the section).

The mechanized support section includes a visor I, overlap 2, hydrorack 3, 1 hydraulic cylinder 4 movement, base 5 on which the matte crown 6 is mounted using axis 7 and grooves 8. The bracket 6 is fixed to a hydraulic cylinder 9 with a punch 10 located in the rails eleven.

Section lining works as follows.

5 When thrusting the hydrostrung 3, the visor 1 is raised up to the stop in the roof. At the same time, the blocking part of the overlap 2 together with the bracket 6, the hydraulic cylinder 9 and the punch 10 rises up to the axle of the axis 7 in the upper part of the grooves 8, occupying the initial position (Fig. 2). As a result of the application of sudden dynamic loads from the collapsed rocks of the tailings roof, part of the overlap 2 together with the bracket 6, the hydraulic cylinder 9 and the pole 10 moves to the soil. Punch 10 as it deepens into the soil meets its growing resistance, as a result of which the impact energy of the collapsed rocks is extinguished directly by the soil, mine ground 5.

0 The submerged insoil punch is the lining of the lining section, which prevents the base from slipping when it strikes the dip of the formation (Fig. 3).

Before moving the section, fix the hydraulic cylinder. 9 is shortened and the punch III leaves the soil (Fig. 4).

Next is the movement of the support section by the hydraulic cylinder 4 movement. Thereafter, the hydraulic post 3 and the hydraulic cylinder 9 and the

The lining section 0 again takes up its initial position (Fig. 1), is ready to again take the blow of the collapsed rocks.

The size and shape of the contact punch 10 with the soil is selected depending on the carrying capacity of the latter.

5 In connection with this, the support section can be completed with various punches.

The use of the proposed lining section, which is approximately equal in terms of production costs, in comparison with the known ones, allows eliminating the damage caused by shock loads in the case of large-block rock caving.

cpas.Z

A-A,

Aa

 XXVf / WXN

.

Claims (1)

THE SECTION IS MECHANIZED BY A FASTENER, including with a visor, a hydraulic stand, shifters, a base with ι inside which a hydraulic cylinder with a support is mounted fixed on it, distinguishing the hydraulic jack by a bracket, in order to improve the interaction of the lining section with side rocks by reducing dynamic loads to the heap part of the base due to redistribution of the formation and liquor on the soil. Directions of sliding it over the dip of the formation, the support of the hydraulic cylinder is made in the form of a punch placed in vertical guides installed on the base bracket with the possibility of penetration into the soil. _f