SU1229369A1 - Power roof support unit - Google Patents

Description

The invention relates to the field of coal mining by the underground method, namely with the help of mechanized supports.

The purpose of the invention is to increase the operational reliability of the section.

FIG. Figure 1 shows the mechanized support section, side view (in the positions of the minimum I h of the maximum And distance); in fig. 2 shows section A-A in FIG. 1 (in the extended position of the second section of the mechanized support).

The mechanized support section contains a visor 1, a fence 2, a hydraulic post 3, a hydraulic cylinder 4, a base 5 with a rigid bracket 6, a support surface 7 and a window 8, retractable beams 9,

When pressure is applied to the first stage of a hydraulic rack, section 3 increases the sliding capacity, the maximum value of which is achieved when the first stage of the hydraulic rack 3 is fully extended. When increasing the sliding section of the support bracket (greater than when the first stage of the hydraulic column 3 works), the first stage exhausted, retractable beams 9 are fixed with axes 11 in bracket 6 in the upper position of the SRI. The protective element 10 is folded in the direction of the dam and secured in this position on the retractable beams 9. In this case, the protective element 10 prevents the dam rocks from penetrating into the working space of the lining section, and in the cases of its deforming protective element 10 and the axes 11 and 12. The outgoing 5 This can be easily replaced and unrestricted beams 9 are installed in the bracket 6 which brings up the lifting height of the extendable beams 9.

angle to the support surface 7 in the direction when pressure is applied to the second stage

3. 3. hydrostable 3 sections increases the expansion. Using axles 11, they secure the extension, the maximum value of which the bottom beams 9 in bracket 6, axis 12 serve. JQ is tightened with the full course of the second stage.

for fastening the protective element 10, which is hydro-resistant (position II). ry can be fixed both on the retractable beams 9 and on the fence 2. Window

8 serves as an exit point

Since when sliding the sliding beams 9 at an angle to the supporting surface 7 towards the hydroresistance 3, the visor 1 approaches the face, the amount of the visor moving away from the roof support does not increase as little as possible. I.

In the initial position (position I) guide- When reducing the spreading of the section, the zagodoyka 3 is compressed, the sliding beams 9, the protective element 10 is retracted inside, fastened with axes 11 in the bracket 6 in the lower section, the sliding beams 9 are lowered in it. The protective element 10 is retracted by the bracket 6 to the lower position, first into the interior of the section and fixed in such a position 30 and the second stage of the hydroshort 3 contraction. The barrier against penetration comes up. The lining section comes to position I. The type of blockage into the working space of the section. In this case, the protective element 10 is not affected by the bracket 6 of the base. The process of lowering the sliding beams 9.

When pressure is applied to the first stage of the hydraulics, section 3 increases the expandability, the maximum value of which is achieved when the first stage of the hydraulics 3 is fully extended. When increasing the extensibility of the support section (greater than when the first stage of the hydraulics 3 is working) in the hydraulic rack, the first stage has , retractable beams 9 are fixed with axes 11 in bracket 6 in the upper position. The protective element 10 is folded in the direction of the dam and secured in such a position on the retractable beams 9. In this case, the protective element 10 prevents the dam rocks from penetrating into the working space of the lining section, and in cases of its deformation it can be easily replaced and not limited

-eleven

FIG. 2

Claims (1)

SECTION OF THE MECHANIZED FASTENERS, including a base with a bracket, water stands, a guard with a visor, retractable beams fixed to the guard by means of axes and placed in the bracket of the base, characterized in that, in order to increase the operational reliability of the section, it is equipped with a protective element that is fixed on the axes connecting the sliding beams with the fence, and placed between the beams with the possibility of fixing on them and on the fence. SU „„ 1229369 and FIG. 1