SU924395A1 - Mechanized roof support section - Google Patents

Description

The invention relates to the mining industry and can be used in the excavation of coal-variable seam thickness with the laying of the goaf.

Known section mechanized lining, including sealing telescopic shield, made in the form of separate telescopic beams, which are interconnected by transverse beams, while the sealing shield is connected with the section of hydraulic jacks of the seal, placed in the working space of the section [1].

However, the working space of this section is largely occupied by hydraulic jacks seal.

Closest to the proposed technical entity is the mechanized support section, which includes the base, the overlap, hydraulic, telescopic sealant 2

Ny shield with hydraulic jacks seals, hydraulic jacks thrust and vibrators [2].

The disadvantage of this section is that when working on seams of variable power with complex soil and roof hypsometry, hydraulic jacks of the seal, connected at an angle with the sealing shield, base and floor, can cause distortion of the section between the roof and the soil, which leads to reduced reliability sections.

The purpose of the invention is to increase the reliability of the section on the layers of variable power with complex hypsometry of the soil and roof, and increase the working space of the section.

This goal is achieved by

that the sealing shield is pivotally attached to it by

rods guides placed

in overlap and base, while

3,924,395 4

hydraulic jacks seals and vibrators mounted on rails.

Fig „1 shows the proposed section, general view; FIG 2 section A-A in Figure 1 and the procedure ₅ lotneniya yn filling mass of lava.

Section 1 contains overlap 2 and base 3, into which the guides 4 are telescopically inserted.

using rods 5 with guides 4 pivotally in two perpendicular planes near the roof and soil of the stratum, telescopic sealing shield 6 is connected. Vibrators 7 are rigidly connected with guides 4 5. Vibrators 7 are not connected to rods 5 but only abut against them. The rod is inserted into the hole in the partition of the guide 4. Between the hanger of the rod 5 and the partition of the guide 4 is inserted for elasticity rubber gasket 8. The guides 4 are connected pivotally, respectively, with the overlap 2 and the base 3 using hydraulic jacks 9 seals. Section 1 is equipped with two hydraulic girders 10 and two hydraulic jacks 11, which, when compacted with a filling mass, can be pulled apart in the chest of the face.

Section mechanized support works as follows.

The piston cavities of hydraulic jacks 11 is supplied under pressure emulsion working fluid cylinders move to the bottom and _n are burst in it. Then automatically or manually turns on the flow of fluid into the piston cavities of hydraulic jacks 9 seals, the cylinders of which include vibrators 7, with vibration move the sealing shield to the backfill array and seal it. Compacting is carried out in one section 1 or

several simultaneously sequentially from top to bottom along the dip of the reservoir. This is necessary so that the backfill array does not spill out under the lining (Fig. 2). Sealing of the backfill array is performed when section 1 is fixed by hydraulic legs 1 0 and hydraulic jacks 11 are pulled apart in the chest of the face.

The proposed section design provides increased reliability of the section on seams of variable power with complex soil and roof hypsometry, an increase in its working space, and a decrease in coal loss.

four

Claims (1)

Claim The mechanized roof support section, which includes the base, the overlap, hydraulic legs, the telescopic sealing shield with the hydraulic jacks, the thrust hydraulic jacks and the vibrators, characterized in that, the sealing shield has pivotally attached to it, with the help of rods, guides placed in the floor and base, while the hydraulic jacks of the seal and the vibrators are fixed us on the rails.