SU721537A1 - Mine powered roof-support section - Google Patents

Description

(54) SECTION OF MINE MECHANIZED FASTENERS

I

The proposal relates to the underground mining of mineral deposits and can be used to fix the clearing workings in the development of inclined or steep coal seams.

The known mechanized roof support for gentle and oblique incidence is aggregated with a conveyor, having a device for stripping the soil in front of the base in the process of shifting, which consists of a blade with bevelled ribs fixed by means of levers from the bottom side of the base and pressed to the soil by a spring. The conveyor on the side of the base of the support along the entire length has an inclined loading platform 1..

When moving the support, the base moves to the conveyor, and the blade clears the soil in front of it, shifting shtyb to the platform. This lining has solid bases of sections, in which there are no openings and no bashmakov. When shifting, the lining cleans the ground in front of itself, which is not required on a steep fall, as the shtyb goes down under its own weight. Installing the blade on the bashmak in the lining will also not give a positive effect, since

base beam prevents the exit of shtyb in the face.

The closest solution to the technical essence and the achieved result is the section of the mine mechanized support, which includes the base with a window for release of the pier, fencing, hydrorack and hydraulic slide 2.

The disadvantage of this support is that the outlet windows are constantly open, then the broken coal and shtyb through the windows will go to

the lining sections and as a result of the bypass will stitch the sections of the lower part of the unit, i.e., the upper sections will move normally to the lower sections due to the decrease of the jack stroke due to the gagging and the indication system failure will begin to lag and the unit will turn on falling. In this connection, such a support structure is necessary, which would prevent the penetration of the shtyb from the bottom and would ensure the release of the shtyb that fell into the base of

other channels (spilling through intersectional gaps).

Claims (2)

The aim of the invention is to prevent the broken coal from entering the bottom hole in the base. This goal is achieved due to the fact that the window has an elastic plate fixed on the base from the side of the uprising with the possibility of rotation. Such an embodiment of the base of the lining allows the shtyb from the opening to be released to the side of the bottom when moving the shoe and prevents penetration of the broken coal from the bottom to the base. FIG. 1 shows a mechanized support section; in fig. 2 — node I in FIG. one; in fig. 3 is a view A of FIG. 1. The mechanized support section contains a base 1, a shoe 2, top to 3, a fence 4, a hydraulic post 5, jacks of the shifter b, 7 and a vertical telescopic frame 8 with guides 9 for the hydraulic post and booms 10. The telescopic frame is rigidly fixed on the base and serves for installation of the actuator, made in the form of an endless chain with plow carriages. Hydraulic 5 provides thrust support through the upper and shoe between the roof and the soil of the reservoir. The bases of all sections are interconnected, forming the anterior and posterior sa. The shoes 2 are located in the opening of each base. The base is mounted on the front 11 and rear 12 skis. Between the front skis in the base beam there is a window 13 for the release of the bollard. The window on the side of the bottom is covered with an elastically flexible plate 14, fixed at one end at the base by a clip 15 from the side of the reservoir uprising. To open the window on the toe of the bashmak, there is a pusher 16. The coal is dredged continuously, while the shoes 2 and the top 3 of all sections are opened by hydraulic posts 5, and the bases 1 with telescopic frames 8 are fed to the bottom using hydraulic jacks 6, 7. After advancing the bases shifting of the shoes and tops begins on the move of the jacks. The movement is carried out in groups - out of every 3 sections only one moves at a time. Hydraulic struts 5 partially remove the thrust and hydraulic jacks 6, 7 top to 3 with fencing 4 and the bashmak 2 move to the front position. In the opening of the base 1, there may be a cluster of shtyb, which in the usual lining prevents the full movement of the bashmak. In the proposed support, the shoe shifts the rod to the front beam of the base, and then, at the end of the shifter, the plunger 16 rests on the elastic-pliable plate 14 and bends it relative to the clamp 15 to the side of the bottom, opening the outlet window 13. In the formed gap between the end of the plate and the base of the rod under the action of its own weight, it spills out of the way into the face and rolls onto the conveyor in the conveyor roadway. At this time, the plate 14 serves as a baffle, preventing the penetration of the coal moving along the bottom of the hole into the opening of the base. When the feed is resumed, the base 1 moves to the bottom, the plate 14 comes out of contact with the pusher 16 and again closes the outlet port 13. In a similar manner, the support also works at a constant feed. The use of the proposed support with a device for the release of shtyb allows you to automate the process of shifting and increase the reliability of the display system. Claims Section Mechanized roof support, comprising a base with a window for release of the bollard, fencing, hydraulics and a hydraulic slide of movement, characterized in that, in order to prevent the broken corner from entering the bottom hole in the base, the window has an elastic plate fixed on the base from uprising with the possibility of turning. Sources of information taken into account during the examination 1. USSR author's certificate No. 314910, cl. E 21 23/00, 1970. 2. Topchiev AV and others. Mining machines and complexes. -M., “Nedra, 1977, p. 474-475.