SU607990A1 - Powered conjugate roof support - Google Patents

Description

one

The invention relates to the mining industry, namely to fastening the lava interface with a ventilation drift when developing predominantly steeply dipping seams with long columns along the strike.

It is known that the lining of the joints consists of the tunnels and the main parts, connected by means of tampers and having spacer shields with stands and barriers l. The disadvantage of it is unreliable overlap in the place of mating of the lava with the drift.

The closest to the proposed invention in technical terms is the mechanized lining of the mate, containing the drift and end sections, each of which includes in pairs connected by upper crossheads with hydrostamps, shifter jacks and a shield, placed between the upper and overlapping laval section 2.

The disadvantage of this support is that the support section moves as a whole with the 6th base beam, while a bare roof remains and an additional load on the base beam is created.

The aim of the invention is to permanently maintain the roof in the junction zone of the lagoon with the road drift.

This is achieved by the fact that, in the lining of the mating, the shield is hinged on one of the pairs of cross-arms, and the other pair of cross-arms has a link for connection with overlapping of the main section.

Such a construction; the support mating allows the roof to be constantly maintained during the movement, since the shield is not interconnected with the section of the main support, which is removed from the engine during the transition.

FIG. 1 shows the mating support, a general air condition; in fig. 2 shows section A-A in FIG. one.

Claims (2)

Mechanized lining of the mate is 20 tbit from drift 1 and end sections 2, pivotally connected along the roof and lying sideways with spacers 3, Strekov section. It consists of frames 4, 5, 6 and 7, formed by gusters of 8, pivotally connected with 25 cross-beams 9. Frames are pairwise connected to each other by Tovy beams 1O and upper 11 and form two shifting systems. Moves 4 and 6 of the frame are: 1 system, 5 and 7 - And the system. The systems interact with each other by means of jacks 12 of the movers connecting the traverse and the racks of opposite systems. The end section consists of four frames formed by hydraulic posts 8 and 13 connected hingedly to the roof with IS 14 crossbars along the drift road with bases 16. Tops 17 and 18, side beams 19 connect the frames in pairs in such a way that the two middle frames form I shifting system, and extreme -, C system. Traverses 14-have telescopes 2O from the side of the fence, pulled out by jacks 21 embedded in traverses, P {the extreme traverse 14 is connected rigidly with the extreme upper 17 and the middle traverse 15 with the middle upper 18. Telescopes of the traverse 14 are hinged to the shield 22 The traverses 15 with the help of the link 23 are hingedly connected with the overlap of 24 cubic meters. sections. The overlapping is bursting with two pillars 25, equipped with shoes 26, located on the soil of the reservoir and pivotally connected to the base 16. On the dam side, the end section of the working space is protected by shields 27 and 28 held by the arms 29 and 30. When shifting the mating, the thrust is removed from the racks 8 and 13 of the I system. With the help of hydraulic jacks 12 for feeding the overlap 24, the middle traverses 15, the top 18, frames 4 and 6 move the slider steps, after which the system extends with the supports 8 and 13. During the shifting of the middle traverse 15, the shield 22 remains in the thrust of the hydraulic jacks 21 of the extreme traverses 14. After the throttle 1 of the system, the thrust is removed from the second system and its similar movement occurs. In the case of sliding the mate into the lava, its position can be restored by spreading the shield 22 into the roof of the formation. In the working position of the mate, both advancing systems burst. Thus, the proposed joint support, along with the simplicity of the device, provides a reliable enclosure of the working space when moving at the interface of the lava with the drift and has the ability to self-heal when creeping into the lava. Claims of the invention: Mechanized lining of the mating, containing the drift and end sections, each of which includes traverses with hydraulic legs connected in pairs by tops, jacks of the advancing and shield placed between the tops and the overlap of the main section, so as to be permanently supported the roof in the interface of the lava with the drift during the movement, the shield is hinged on one of the pairs of crossbars, and the other pair of crossbars has a link for connection with the overlapping of the bulk section. Sources of information taken into account in the examination: 1. Copyright certificate № 4,74.62.CH, cl. E 21 D 11/36, 1973. 2. Copyright certificate N. 395586, cl. E 21 D 23 / OO, 1972.   C § S5 5s " 2