CN2193923Y

CN2193923Y - Prop non-skid device for large slope angle recovery working surface

Info

Publication number: CN2193923Y
Application number: CN 93236301
Authority: CN
Inventors: 王仪
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-20
Filing date: 1993-02-20
Publication date: 1995-04-05
Anticipated expiration: 2003-02-20

Abstract

The utility model discloses an anti-slide device for single props on large slope angle extracting faces in coal mines, comprising a prop top anti-sliding cover and an anti-sliding bottom beam. The external shape of the anti-sliding is hollow T, and the bottom beam is in a long strip shape and is provided with a plurality of slotted holes (3). The top beam of the prop of the full face is firmly connected with the bottom beam into integration by using screw bolts or plugs, and the ant-sliding bottom beam can be fixed on a base plate by anchor rods if necessary. As a result, the slide of the prop can be prevented fundamentally, and the safety production is guaranteed. The utility model with the advantages of convenient operation and high safety can be recovered for repeated use. By adopting the utility model, part of the coal seams which can not be mined by using the long wall type in the past because of large slope angle can be changed into the coal seams which can mined by using the long wall type, so that the extracting technology can be simplified, and the economic benefit can be also be increased.

Description

Prop non-skid device for large slope angle recovery working surface

The utility model relates to a kind of shoe that is used for the coal mine lower supporting rod, and accident is toppled in the downslide that is specially adapted to high inclination-angle stope prevention individual prop under the coal mine, and it belongs to the support apparatus in coal mine technical field.

At present, China's coal-mine is the downslide that prevents individual prop at the high inclination-angle stope, the following measure of general employing:

1. dig needling or base plate cut a hole into pitted skin or at suspension column underlay veneer pier;

2. with rope pillar is fastened mutually, perhaps hang up properly mutually with the cable wire that has hook;

With iron wire at pillar and back timber or between pillar and wire lath, fasten.

There is following shortcoming in above-mentioned non-skid feature:

1. complex process, labour intensity is big;

2. will consume a part of material (as veneer pier, rope, iron wire etc.), it is multiplexing that these materials are difficult to reclaim, thereby increased cost of production;

3. security reliability is poor;

4. fasten at the pillar middle part with rope or cable wire, influence personnel's walking.

At the weak point of above technology, task of the present utility model be to design a kind of esy to use, safe and reliable, recyclable multiplexing novel high inclination-angle stope (mainly referring to the coal wall) pillar shoe.

Task of the present utility model is finished in the following way: high inclination-angle stope individual prop shoe partly is made up of capital anti-skid cover (see figure 1) and anti-skidding bottom girder (see figure 2) two.

The accompanying drawing of submitting to below in conjunction with the utility model describes:

Fig. 1 is the structure and the user mode front view of capital anti-skid cover (1).It is stamped to form by steel plate, and respectively there is the screw of two symmetric arrangement the two sides, bottom.

Fig. 2 is the A-A sectional drawing of capital anti-skid cover (1).The profile of anti-skid cover is hollow " T " font.During installation, at first "T"-shaped anti-skid cover is fixed on the back timber, the capital both sides link into an integrated entity pillar and back timber firmly with bolt or latch.

Fig. 3 is the front view of anti-skidding bottom girder.Bottom girder is a strip, and it is processed by band steel, during installation, lays along the work plane incline direction, is fixed on the bottom girder behind the post leg cover upper gasket (4).Passing connecting hole (2) with screw rod or latch between the upper and lower bottom girder interconnects.Be carved with several slotted eyes (3) on the bottom girder, select suitable position during for posting, pillar is fixed on the anti-skidding bottom girder, slotted eye (3) is sunk on bottom girder.The interior ring of packing ring (4) can design according to the section configuration of individual prop base, can be square and circular, and it is made by antifriction metal (AFM) or other material.

Fig. 4 is the vertical view of anti-skidding bottom girder.Two ends is respectively welded a pair of connecting hole (2), so that interconnect by connecting hole (2) with screw rod or latch between the upper and lower bottom girder.

Fig. 5 is second kind of embodiment of anti-skidding bottom girder, and promptly slotted eye (3) is arranged in the mode of joining in twos.

Fig. 6 is the third embodiment of anti-skidding bottom girder, and promptly slotted eye (3) is arranged in separate mode.

More than three kinds of anti-skidding bottom girders, can select for use arbitrarily according to the actual conditions of production scene, in order to strengthen the stability of anti-skidding bottom girder, also can bottom girder be fixed on the base plate with anchor pole every 5～10 meters.

Fig. 7 is the structure chart of rounded washers (4).

Fig. 8 is the structure chart of square washer (4).The selection foundation of packing ring (4) is to be determined by the section configuration of the employed individual prop base of this work plane.

Use the meaning of high inclination-angle stope pillar shoe to be:

1. prevent that pillar from toppling over, improve safety factor;

2. by after adopting this device, made the part past can not adopt the coal seam of longwall advancing mining to be converted into because of the inclination angle is excessive and can adopt longwall advancing mining, thereby reach:

(1) simplifies process for stoping;

(2) improve back production efficient;

(3) economize on resources, improve resource recovery;

(4) owing to the change of coal-mining method, make the timber supporting change steel lining into, thereby reduced mine timber consumption and cost.

3. by after adopting this device, make the metal mainstay and the back timber of entire working surface connect into as a whole securely, improved the rigidity of support system, guarantee the stability and the globality of support vertical and horizontal, fundamentally solve pillar toward the downslide of incline direction with topple over, helped the safety in production in colliery.

Claims

1, a kind of shoe that is used for high inclination-angle stope individual prop under the coal mine, it partly is made up of capital anti-skid cover and anti-skidding bottom girder two, the profile that it is characterized in that anti-skid cover is " T " font, adopt latch or bolt that the top cover of metal mainstay is fixed on the back timber, anti-skidding bottom girder is a strip, be carved with some slotted eyes (3) on it, lay along the work plane incline direction, connect with latch or bolt between the upper and lower bottom girder, be fixed on behind the post leg cover upper gasket (4) in the slotted eye (3) on the bottom girder.

2, the shoe of high inclination-angle stope individual prop according to claim 1 is characterized in that the arrangement of the slotted eye (3) on the anti-skidding bottom girder changes arbitrarily as required.

3, the shoe of high inclination-angle stope individual prop according to claim 1, the interior ring that it is characterized in that packing ring (4) is square.

4, according to the shoe of claim 1 or 3 described high inclination-angle stope individual props, the interior ring that it is characterized in that packing ring (4) is for circular.

5,, it is characterized in that packing ring (4) makes with the abrasion resistance metal according to the shoe of claim 1 or 3 described high inclination-angle stope individual props.

6, the shoe of high inclination-angle stope individual prop according to claim 1 and 2 is characterized in that anti-skid cover and anti-skidding bottom girder make with steel.