CN1900486A

CN1900486A - Self-moving roadway advance support bracket

Info

Publication number: CN1900486A
Application number: CN 200510046887
Authority: CN
Inventors: 曹树祥; 曹伟; 李静
Original assignee: SHENYANG TIAN'AN MINING MACHINERY TECHNOLOGY CO LTD
Current assignee: SHENYANG TIAN'AN MINING MACHINERY TECHNOLOGY CO LTD
Priority date: 2005-07-19
Filing date: 2005-07-19
Publication date: 2007-01-24

Abstract

The invention provides a novel self-moving roadway hydraulic support which is suitable for advance support of two roadways on a coal face. The existing advance support for two roadways of a coal face uses a single hydraulic prop and an n-shaped steel beam for support, and is carried and carried manually, which not only influences the pushing progress, but also is unsafe. The invention provides a self-moving roadway hydraulic support shown in figure 1, which not only keeps the supporting space and the supporting strength formed in the roadway by the existing supporting mode, but also can self-move by operating a reversing valve along with the propulsion of a working surface. The support consists of two supports in each group and supports simultaneously. When the tunnel roof is supported, the tunnel roof also has the function of protecting the side, the tunnel roof is alternately walked during walking, the frame to be walked and the descending frame fall onto the consequent beam of the other frame, then the foot (upright post) and the side protecting jack are lifted, the other frame is pushed to move forward along the consequent beam of the other frame, the first frame moves to the position, and after the support, the other frame also moves forward.

Description

Automatic moving type tunnel advance support rack

The present invention relates to a kind of automatic moving type tunnel hydraulic support, be applicable to the advance support in well worker coal mining work plane two lanes.

Before the well worker coal mining work plane two lane work planes at least 20m all need add strong supporting in advance, existing support form is hydraulic prop, supports the П section steel beam.Along with the propelling of work plane, need the workman to dismantle hydraulic prop and П section steel beam, and be transported to front supporting again, belong to heavy manual labor, both influenced the propelling degree, dangerous again.

The purpose of this invention is to provide a kind of tunnel hydraulic support that can move certainly, close substantially with existing support form, be used for supporting back and lateral wall, can guarantee original lane space and supporting intensity, but do not need the artificial unloading to carry, but move certainly by HYDRAULIC CONTROL SYSTEM.

Automatic moving type tunnel advance support rack of the present invention uses as shown in Figure 1 in groups, every group of tunnel of supporting 3-4 linear meter approximately, and each group is formed as between 2, two of the part among Fig. 11 and the parts by two and is connected by the passing jack shown in two part spares 3; Each frame as shown in Figure 2, by hinged the forming of suitable beam shown in the crossbeam shown in 2

parts

1 and 2 parts 2, the two ends of every crossbeam hang a column (part 3), be used for supporting traverse, the outer end is wall supporting beam (part 4) and the wall supporting jack (part 5) of supporting wall group again, and the following hinge of wall supporting jack is located on the column footing same.

During work, as shown in Figure 1, eight root posts of two supports support four crossbeams and support back, eight wall supporting jack at two ends support wall supporting beam supporting two and help, safeguard equipment and pedestrian space in the tunnel, two alternately walkings during walking, wherein one is still supported, and another column and wall supporting jack shrink simultaneously and fall frame, when crossbeam drops on another the suitable beam, can not be again toward descending, continuing operation mentions column, footing breaks away from roadway floor, stretches out the passing jack then, and this suitable beam along another is passed forward, after passing puts in place, the setting prop roof supporting rises the wall supporting jack, and supporting is lived two and helped, move forward another then equally, finish a circulation.

The crossbeam of each frame and along having certain height difference between beam is so that guarantee that crossbeam can break away from up-and-down back when falling frame; The crossbeam and the Shun Liang of each frame are movably hinged, when passing this like this, crossbeam with can out of plumb along beam, become shape shown in Figure 3, reduced its width, prevent that tunnel two from helping walking straight, the clamping stent of spraining.

Claims

1, a kind of automatic moving type tunnel advance support hydraulic support, two every group, the top board and two in common supporting tunnel is helped, and during walking, two are alternately moved frame, and the support that moves falls the frame rear suspension on another suitable beam, passes reach by passing jack.

2, every on this support supports four wall supporting beam roof supportings and wall supporting, the shared suspension column of column and wall supporting jack by two crossbeams of upright supports and wall supporting jack.

3, two alternately reaches of this support, the support that moves falls post and drops on to crossbeam on another the suitable beam, then leg (column) and the withdrawal of wall supporting jack is mentioned, and is suspended on another the suitable beam, promotes reach by passing jack.

4, the crossbeam of every support and Shun Liang live in being hinged, and when mobile, crossbeam and suitable beam can be out of shape out of plumb, reduce whole width to adapt to the distortion in tunnel.