SU909202A1

SU909202A1 - Hydraulic mine roof support

Info

Publication number: SU909202A1
Application number: SU802970055A
Authority: SU
Inventors: Степан Степанович Литвиненко; Валентин Александрович Матвеев; Станислав Владимирович Белов; Анатолий Петрович Бондаренко
Original assignee: Шахтинский научно-исследовательский и проектно-конструкторский угольный институт им.А.М.Терпигорева
Priority date: 1980-07-30
Filing date: 1980-07-30
Publication date: 1982-02-28

Description

(54) ШАХТНАЯ ГИДРАВЛИЧЕСКАЯ КРЕПЬ(54) MINE HYDRAULIC STRAP

1one

Изобретение относитс к .горному делу, конкретно к гидрофицированным креп м очистных зубьев.The invention relates to the mining case, specifically to hydroficated crepe m cleaning teeth.

Известна шахтна гидравлическа крепь, включающа посадочные гидростойки, св занные с конвейерами гидродомкратами передвижени с двум рабочими штоками и плаваюш,им цилиндром 1.A hydraulic mine support is known, including landing hydraulic legs, connected to conveyors by means of hydraulic sleeves of movement with two working rods and a floating one, with cylinder 1 of them.

Недостатком указанной крепи вл етс значительное некрепленное пространство между гидростойками и конвейером.The disadvantage of this support is a significant non-fixed space between the hydraulic legs and the conveyor.

Наиболее близкой к предлагаемой по технической суш,ности и достигаемому результату вл етс шахтна гидравлическа крепь, включаюша две секции, содержаш,ие гидростойки, ..расположенные между секци ми балку, имеюшую с забойной стороны направл ющую, в которой расположен призабойный гибкий т говый орган, прикрепленный к секци м, горизонтально установленный гидродомкрат передвижени , св занный одним концом с балкой, а другим - с плоским толкателем, прикрепленным к конвейеру 2.Closest to the proposed sushi, technical result and the achieved result is the mine hydraulic lining, including two sections containing hydraulic racks located between the sections of the beam, which has a guide from the bottomhole side, in which the bottom hole flexible body is located , attached to the sections, a horizontally mounted traveling hydraulic jack, connected at one end to the beam and the other to a flat pusher attached to the conveyor 2.

Недостатком этой крепи вл етс неустойчивое положение секций при передвижении .The disadvantage of this support is the unstable position of the sections when moving.

22

Цель изобретени - повышение устойчивости секций при перемещении.The purpose of the invention is to increase the stability of sections when moving.

Указанна цель достигаетс тем, что балка со стороны, противоположной забойной , выполнена с огибающей ее криволинейной направл ющей, расположенной выше продольной оси гидродомкрата, а секции дополнительно св заны гибким т говым органом , расположенным в криволинейной направл ющей.This goal is achieved by the fact that the beam on the side opposite to the bottomhole is made with the curvilinear guide envelope located above the longitudinal axis of the hydraulic jack, and the sections are additionally connected by a flexible pull body located in the curvilinear guide.

На фиг. 1 показана щахтна гидравли10 ческа крепь, вид сбоку; на фиг. 2 - то же, вид в плане; на фиг. 3 - разрез А-А на фиг. 2; на фиг. 4 - гидравлическа крепь, вид в плане, после передвижки секции с линии обрушени в крайнее переднее положение.FIG. 1 shows a hydraulic hydraulics 10 side view; in fig. 2 - the same plan view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 - hydraulic support, view in plan, after moving the section from the line of collapse to the extreme forward position.

Claims

The support consists of single-post sections 1 and 2, a beam 3 located between them, a horizontally installed hydraulic jack 4, connected to a beam and connected by means of a flat pipe 5 to a conveyor 6, bottom-hole 7 and tail 8 flexible traction bodies, respectively located in 9 and 10 beams 3 and attached to sections 1 and 2. The guide 9 is made from the downhole side, the guide 10 from the opposite side, bends around the beam and has a curvilinear shape. The guide 10 is located above the longitudinal axis of the hydraulic jack and the hydraulic joint I1 of the hydraulic jack with the pusher 5. The inner side surfaces 12 of the sections in contact with the side surfaces 13 of the beam are spherical. The support works as follows. After the strips are removed by the coal machine, the working fluid is supplied under pressure to the piston cavity of the hydraulic jack, and the conveyor is moved to the bottom by a stroke of the hydraulic jack equal to the gripping amount of the excavation machine. Then the section 2 located on the line of collapse is unloaded and the working fluid is fed under pressure into the rod cavity of the hydraulic jack 4. Beam 3 is moved to the bottom by the stroke of the hydraulic jack, while the flexible traction bodies 7 and 8 move, respectively, along the guides 9 and 10, moving section 2 to the bottom by an amount twice the stroke of the hydraulic jack. After spreading section 2, the next strip of coal can be removed. Subsequent movements of the conveyor and movement of section 1 are carried out as described above. In the proposed support, the tilting of the sections and the movement is prevented. overcoming the unevenness of the soil is facilitated and a reduction in the forces in the hydraulic jacks is achieved. Claims of an Invention Mine hydraulic support, comprising two sections containing a hydraulic post, a beam between the sections, a guide on the bottom side, in which there is a bottom hole flexible traction body attached to the sections, a horizontally mounted hydraulic travel jack connected at one end beam, and the other with a flat pusher attached to the conveyor, characterized in that, in order to increase the stability of the sections when moving, the beam from the side opposite the bottom hole is made with a curvilinear guide that extends above the longitudinal axis of the hydraulic jack, and the sections are additionally connected by a flexible rod located in the curvilinear guide. Sources of information taken into account in the examination 1. Authors certificate of the USSR No. 295885, cl. E 21 D 23/00, 1968.

2. The UK patent number 1051555, cl. E IE,. publish 1966 (prototype).