SU434169A1 - SET OF MECHANIZED STRIP - Google Patents

Description

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The invention relates to the field of mining of minerals by the underground method, namely to the fastening of working faces with sets of mechanized roof supports.

Known kit mechanized supports on the author. St. 404054.

A disadvantage of the known sets is that during the movement only linear sections are actively pressed against the roof of the reservoir, while the extreme sections of the set, turning around the intersection joint, do not contact the roof when they are moved with the support of the legs of the formation soil. .

The purpose of the invention is to eliminate this drawback.

This is achieved by the fact that on each intersectional bracket an additional power jack is rigidly fixed, which interacts with the stop block of the end section.

FIG. 1 shows a set of lining in the plan; in fig. 2 is a section along A-A in FIG. 1 at the time of shifting the end section.

A mechanized mount kit consists of linear sections 1 and two end sections 2, each of which contains two or more hydraulic legs 3 with supports and an overlap 4.

The sections are interconnected in a set with movable hydraulic jacks 5, located at the roof of the formation, upper hinged intersectional control links 6, made in the form of turntables, and guides 7.

The intersection link 6 between the linear 1 and end 2 sections is fixed by means of a roller 9 by a power jack 10, which, with its sliding part 11, in contact with the stop section 12, is mounted on its overlap.

The length of the stop 12, located along the overlap, is designed for the relative movement of the sections by the step of movement.

The intersectional connections 6 have tongue-and-groove grips 13 which encompass guides 7 installed in the overlap of the adjacent end section. The guides 7 provide relative movement of the sections per step of the slide.

Under the overlap of each second linear section there is a power hydraulic cylinder 14 suspended pivotally on the lugs 8 of adjacent intersectional connections. The power cylinder 14 provides an active pressing to the roof of the linear sections 1 when they are moved with the separation of the supports racks from the soil.

The active force developed by the power jack 10 when shifting the end section 2 with the separation of the supports of the supports from the ground, unfolds it relative to the hinge 15 and presses the overlapping of the end section to the top of the reservoir.

With significant local roof irregularities (see Fig. 2), power jack 10 rotates with intersectional coupling 6 relative to hinge 16, without losing contact with support 12.

The intersection control 6 is controlled by a power cylinder 14.

To ensure contact with the roof when moving the end section 2 before unloading it, the working fluid is simultaneously supplied to the piston cavities of the power cylinder 14 and the power jack 10 having hydraulic locks on these cavities, then the section is unloaded without losing contact with the roof, and moves a step hydraulic jack 5 movement.

After the legs of the shifted end section are spread, the power cylinder 14 and the power jack 10 are shut down.

The number of linear sections in the set can be any odd (from one to the full set of sets), the number of end sections in any set is two.

Subject invention

The set of mechanized tilt on avt st. 404054, characterized in that, in order to increase the reliability of the end sections, an additional power jack is rigidly fixed on each intersectional bracket, which interacts with the stop block of the end section.

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