SU1684515A1 - Powered support - Google Patents

Abstract

The invention relates to mechanized fasteners. The goal is to increase the reliability of operation when shifting. Mechanized roof support 1 contains section 2 and base 5 of beams (B) 6. Each B 6 has a support at each end on its lower surface, is located in front of the toe 4 of the corresponding base 3 of section 2 and is connected to the last hydraulic jacks (HD ) 8 movement. The mechanism for the directional movement of the support sections is made in the form of support sheets 11. rigidly fixed on both sides of the front parts of the bases 3. When the section 2 is pulled toward the base 5, the support tapes 11 interact with the shells of the DG 8, providing directional movement of the bases 3. By holding B 6 and DG 8 above the upper edge of the toe of the base 3 due to the presence of supporting protrusions, the shtyb is squeezed out into the space between the bases 3 under the DG 8 and does not hinder the movement of the bases to the base 5. 3 Il. (Ls

Description

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The invention relates to the mining industry, in particular to mechanized fasteners used in the extraction of minerals by the underground method.

The purpose of the invention is to increase reliability when shifting due to preserving the straightness of the base, directional movement, minimum loading by the shifting hydraulic cylinders, enabling the lugs to exit from the space between the bases of the lining sections and the base of the lining and the bases to the base.

Figure 1 shows a mechanized lavney lining, top view; 2 is a section A-A in FIG. one ; in fig. 3 is a section BB in FIG.

The mechanized lining 1 contains sections 2 of the lining, which have ceilings connected by hydroresistance to the bases 3, in front of the toes of which A is the base 5 of the lining 1. The base 5 of the lining consists of links made in the form of beams 6 connected by locks 7. Against each section 2 A beam 6 is located at the ends of which there are lugs for connecting two hydraulic jacks 8 of movement, which connect it to the base 3. Each beam 6 has at each end a support ledge 9 on its bottom surface that holds the beams 6 and hydraulic jacks 8 movement above the toes 4 of the bases 3. Before the base 5 of the lining there is a laval conveyor 10 on the ground, and the mechanism of the directional movement is made in the form of supporting sheets 11 rigidly fixed on both sides of the front parts of the base.

Mechanized lava support works in the following manner.

Before the next cycle of work in the lava, the conveyor 10 is extended to the bottom by base 5 of the lining, and the combine begins work on excavation. After the passage of the combine, the next section 2 is lined up to the base 5 and lined with two hydraulic jacks 8, this does not cause the base 5 to be curved, as the beams 6 from the second 2 bolts adjacent to the movable jacks 8 move, which are t-beam1- displacement of the beams 6. Tugging of the support sections 2 to the base 5 of the support does not lead to the movement of the conveyor 10 to the slaughter unforeseen by the progress of work, and the harvester may go back to sweep.

When the section 2 is supported by two hydraulic jacks 8 of movement to the beam 6, the greatest loading of this beam will occur by a moment equal to the product of half the amount of reinforcement required to move the section 2 of the support and half the distance between

adjacent hydraulic jacks 8 moving adjacent sections 2 lining. Since these jacks are located side by side, the load on the beam is small, which simplify and facilitate the beam 6 and the locks 7.

When the sections 2 are fixed to the base 5, the direction of movement of the base 3 is produced by the housings (cylinders) of the hydraulic jacks 8 of movement with which the front part of the bases 3 contacts.

Since both ends of the jacks 8 are secured at both ends, a reliable direction of movement of the bases 3 is ensured for any lava soil hypsometry.

During work in lava in space

between the base 5 of the lining and the bases 3, a gag is accumulating. Due to the fact that the beams 6 have supporting protrusions 9 that hold them and hydraulic jacks 8 of movement over the upper edge of the nose 4 of the base 3, while pushing sections 2 of the support to the base 5, the bolts are squeezed into the space between the bases 3 under the hydraulic jacks 8 of movement and not prevents movement of the bases 3 to the base 5 of the lining. At the next advancement of the sections 2, the lining remains in the blockage.

The use of the invention ensures the work of the shearer both in the excavation and in stripping in any direction of the lava; simple and low-metal base construction lining; reduction of labor-intensive handicrafts for cleaning the space between the base of the support and

the bases of mi sections lining.

Claims (1)

Invention Formula Mechanized lining, including lining sections, having overlaps, connected by hydro-supports with bases, having a mechanism of directional movement, is a base of separate links in the form of beams, each of which is located in front of the base of the base and connected with the last two hydraulic jacks attached at the ends, characterized in that, in order to increase reliability in operation, when shifting, the beam is made with supporting protrusions on its lower surface located at its ends with the possibility of entering under the beam and placing between them, the toe of the base for the output of the tip, and the mechanism for directional movement is made in the form of supports sheets, rigidly fixed with two possibilities of interaction with the hulls of the sides on the front parts of the bases with shifters. eight /// /// ////// /// /// /// /// /// /// /// fig.Z U / 7 / / /