SU968452A1

SU968452A1 - Arrangement for supporting roof and working face

Info

Publication number: SU968452A1
Application number: SU813283999A
Authority: SU
Inventors: Юрий Павлович Дубовский; Борис Иванович Грицаюк; Владимир Ефимович Парфенов; Евгений Александрович Волков; Юрий Гурарич Зельцер
Original assignee: Подмосковный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт
Priority date: 1981-04-29
Filing date: 1981-04-29
Publication date: 1982-10-23

Description

(54) УСТРОЙСТВО ДЛЯ КРЕПЛЕНИЯ КРОВЛИ И ЗАБОЯ(54) DEVICE FOR FIXING ROOF AND MURRAY

Изобретение откоситс к горному делу, а именно к креплению очистнцх забоев механизированными креп ми.The invention retreats to mining, namely to fastening clean faces with mechanized roof supports.

Известно перекрытие се.кции ме .ханизированной крепи, включгимцее верхн к, прижимные звень , срединенныё между собой и с верхн ком гибким элементом, и гидропат рон, установленный на верхн ке и предназначенный дл нат жени гибкого элемента l.It is known to overlap a section of mechanized roof support, including upper, pressure members, middle between themselves and with the upper flexible element, and hydropath mounted on the upper ke and intended for tensioning the flexible element l.

Недостатком известного перекрыти вл етс отсутствие элементов, осу- . ществл ющих крепление поверхности забо .A disadvantage of the known overlap is the absence of elements, of-. realizing the surface mounting of the bottom.

наиболее близким к изобретению по технической суЩ|НОСти и достигаемому -результату вл етс устройство дл креплени кровли и забо ,.включающее поддерживающий элемент, прийрепленный к перекрытию секции механизированной крепи, св занные с этим элементом и последовательно друг с другом прижимные забойные и концевой , и гидропатрон, установленный между поддерживающим элементом и прижимными щитками 2j.The closest to the invention in technical technical conditions and the attainable result is a device for attaching the roof and the bottom, including a supporting element attached to the overlap of the roof support section, associated with this element and downstream and downstream of the element and Hydraulic cartridge installed between the supporting element and clamping plates 2j.

Однако в устройстве не достигает , с гарантированное прижатие щитков к забою при наличии колебаний велй° чины .захвата выемочной машины. Недостатком устройства вл етс также наличие значительного количества гидропатронов .However, the device does not reach, with the guaranteed pressing of the plates to the face in the presence of fluctuations of the well ° °, the grip of the excavation machine. The disadvantage of the device is also the presence of a significant number of hydropumps.

Цель изобретени - упрсмцение. конструкции и повьвцение надежности креплени забо d услови х работы с непосто нным захватом выемочной машины путем гарантированного прижати The purpose of the invention is opt. construction and reliability of fastening of the d-d working conditions with the non-permanent gripping of the excavation machine by guaranteed pressing

10 щитков к забою.10 shields to the bottom.

Указёшна цель достигаетс тем, что устройство снабжено гидродомкратом , соединенным с Защитными щитка15 ми и пе рекрытием, ползуном, установленным с возможностью осевого смещени на корпусе Гидродомкрата и соединенным посредством.водил и т г соответственно с перекрытием и штоком The target is achieved by the fact that the device is equipped with a hydraulic jack connected to the protective covers and overlap, a slider mounted with the possibility of axial displacement on the housing of the hydraulic jack and connected by means of a spindle and rod

20 гйдродомкрата, при этом защитные щитки выполнены с продольными отверсти ми , через которые пропущен гибкий элемент, закрепленный на прижимном концевом щитке и на штоке гидро25 патрона. . 20, the protective cushions are made with longitudinal holes through which a flexible element is passed, fixed on the pressure end shield and on the stem of the hydraulic cartridge 25. .

Claims

1 shows a device for fastening a roof and a slaughter, side view; figure 2 - protective-shield, view from the side of the bottom; in FIG. 3, view A in FIG. 2; Ia 4 - view B in Fig.1. The device consists of clamping bottom plates 1 with longitudinal holes 2 connected between themselves and supporting element 3 by flexible element 4 made in the form of ropes and fixed on the end clamping plate 5 and on the eye of the sliding plate 6 of hydrop cartridge 7, which is rigidly fixed on the supporting element 3. The hydraulic cartridge is equipped with a safety valve 8. The length of the cylinder and the hydraulic piston rod are selected from the condition of tensioning the flexible element 4 and compressing the pressure plates 1 and 5. On one of the panels 1 is rigidly fixed and an eye 9, to which the hydraulic piston rod 11 is attached hinged to the axle 10; the hydraulic cylinder housing is attached to the overlap 14 by means of the axle 13; A slide 15 with trunnions 16, which serve for mounting 17, attached via the axes 18 to the cross section 14 The slider 15. Connected rigidly attached to the rod 19 with the axis 1 of the lugs 9. The device operates as follows. : After passing through the excavation machine and pulling out the visor or the beamed support, the bare bottom half of the roof and the bottom are fixed, for which the working fluid under pressure is fed into the piston cavities of the hydrojack 7 and the hydrojack 12. At the same time, their rods 6 and 11 are advanced . The rod 6, being advanced, produces tension on the ropes 4, squeezing the flaps 1, and pressing them together, on the roof, and on the face. After ensuring the sufficient tension of the ropes 4, the piston cavity of the hydrop cartridge is locked. As the stem 11 of the hydraulic cylinder 12 advances, the slide 15 moves along the hydraulic cylinder body 12 towards the bottom, rotates 17 towards the axis 18 and the hydraulic cylinder 12 about the axis 13. Force from the rod through the eye 9 is transferred to one of the plates 1 and through tension cam, as a result, they are pressed to the bottom. After ensuring sufficient force, press the flaps 1 to the bottom of the piston cavity with the hydrodynamic Krat 12. Before the passage of the mother’s excavation, the pressure plates and the hydraulic jack 12 are removed from the bottom in the direction of the lining section to the position shown in dotted line in FIG. For this, the working fluid under pressure is fed into the current full-hydropan 7, which is reduced, weakened the ropes 4. Simultaneously with the feeding of the hydraulic unit into the rod of the hydraulic unit, the working fluid is fed under pressure into the rod of the hydraulic jack 12. The hydraulic jack is reduced and withdraws the shields. The slider 15 moves along the housing of the hydraulic cartridge in the direction of the overlap 14, the carrier 17 rotates about the axis 18, turning the hydraulic jack relative to the axis 13 to the position shown in Fig. 1 by the dotted line. At the end of the reduction of the jack 12, its rod cavity is locked. In case of occurrence. in the elements of the device, when the forces exceed the estimated, the safety valve 8 is activated, the tension of the ropes 4 and the voltage in the elements of the device decrease. The use of the device will reduce the number of dumps of coal and rock in the bottomhole space, reduce the complexity of the work. The invention The device for mounting the roof and the bottom, containing a supporting element attached to the overlapping section of the mechanized support, associated with this element and successively with each other clamping downhole and end shields, and a hydraulic chuck mounted between the supporting element and clamping plates,. characterized in that, in order to simplify the design and increase the reliability of securing the bottom in working conditions with an unstable gripping of the excavation machine by ensuring that the guards are pressed against the face, the device is equipped with a hydraulic jack connected with protective shields and an overlap slider installed with the possibility of axial displacement on the body of the hydrojack and connected with a carrier and tg, respectively, with the overlap and stem of the hydrojack, while the protective shields are made with longitudinal holes through which the gi.bky member mounted on the pressure plate and end gidropatrona stock. Sources of information taken into account in the examination 1. The author's certificate of the USSR 641118, cl. E 21 D 23/04, 1975.

2. Authors certificate of the USSR 588384, cl. E 21 D 23./00, 1974 (prototype).

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