CN203362200U

CN203362200U - Novel thin-bed mining hydraulic support

Info

Publication number: CN203362200U
Application number: CN 201320420735
Authority: CN
Inventors: 尹立明; 孙文斌; 梁赛江; 潘刚
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2013-07-16
Filing date: 2013-07-16
Publication date: 2013-12-25
Anticipated expiration: 2023-07-16

Abstract

The utility model provides a novel thin-bed mining hydraulic support, which belongs to the technical field of mine underground work surface support devices and solves the problems of the existing support such as poor security conditions, and low support strength. The thin-bed mining hydraulic support comprises a top beam, a base, a shield beam and a connection rod, wherein the front end of the shield beam is hinged with the back end of the top beam, the shield beam is hinged with the base by the connection rod, a plurality of electromagnets are oppositely arranged on the top beam and the base, and the current strength of the electromagnets are adjustable. The magnetic poles of the electromagnets oppositely arranged on the top beam and the base after electrification are same, so that the electromagnets on the opposite positions are mutually exclusive at the electrified state, and the exclusive force is the resistance, the size of the resistance is achieved by adjusting the current strength, and the upper rock layer is supported by the exclusive force among the electromagnets. The thin-bed mining is remotely controlled, and the development of the mechanical degree of the thin-bed mining is facilitated.

Description

Novel thin seam mining hydraulic support

Technical field

The utility model relates to face timbering equipment under a kind of coal mine, is specifically related to a kind of thin seam mining hydraulic support.

Background technology

According to China's coal seam thickness, divide, thickness belongs to girdle at 0.8～1.3m, be less than 0.8m and belong to ultra-thin coal seam, the mining problem of China's girdle is more and more outstanding at present, because thin seam mining is difficult, efficiency is low, cost is high, poor working environment, so the exploitation of girdle and supporting problem not can solve always.

The support pattern of existing girdle has two kinds: a kind of is the mine timber supporting, the 2nd, the hydraulic prop supporting, all there is following defect in these two kinds of modes: safe condition is poor, supporting intensity is low, and the monomer hydraulic support pattern need to be set up cable, set up fixing, as to meet requirement of explosion proof emulsion hydraulic pumping plant, lay the fluid pressure line of long distance, increased the initial investment of equipment, strengthened cost of production.

As can be seen here, prior art awaits development and progress.

The utility model content

In order to solve above-mentioned problems of the prior art, the utility model proposes a kind of thin seam mining hydraulic support, this support, by the principle of energising magnet two like magnetic poles repel each other, can be realized the remote monitoring to thin seam mining.

Technical solutions of the utility model comprise:

A kind of thin seam mining hydraulic support, comprise back timber, base, caving shield and connecting rod, the front end of described caving shield and the rear end of back timber are hinged, between described caving shield and base, by connecting rod, be hinged, be relatively set with several electromagnet on described back timber and base, described electromagnet is by connection to power supply, and the electric current power of described electromagnet can be regulated.

Further, the electromagnet of correspondence on above-mentioned back timber and base, on back timber after energising, the magnetic pole at electromagnet two ends is identical with the magnetic pole at electromagnet two ends on base, that is to say, the magnetic pole that is positioned at its two ends of electromagnet that back timber is relative with base is identical, owing to mutually repelling between homopolarity, reach the support action to the rock stratum, top.

As a preferred version of the present utility model, above-mentioned power supply is connected with computer, by the computer control power supply, has reached the Long-distance Control to the film exploitation.

The useful technique effect that the utility model brings:

The utility model proposes a kind of Novel thin seam mining hydraulic support, be oppositely arranged several electromagnet on back timber and base, and by electromagnet being switched on to regulate the power of electric current, the electromagnet magnetic pole after energising be oppositely arranged with base due to back timber is identical, make the electromagnet of its relative position mutually repel in the energising situation, its repulsive force is resistance, the size of resistance can realize by regulating size of current, by the repulsive force between electromagnet, reach the supporting to the rock stratum, top.The utility model can be realized the Long-distance Control to thin seam mining, is conducive to the development of the mechanization degree of thin seam mining.

The accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described further:

Fig. 1 is the utility model thin seam mining hydraulic support part-structure schematic diagram, and the electromagnet part of back timber and base only is shown in figure;

In figure, 1, back timber, 2, base, 3, electromagnet.

The specific embodiment

Below in conjunction with accompanying drawing and the specific embodiment, the utility model is done to further clear, complete explanation.

In conjunction with Fig. 1, the utility model, a kind of thin seam mining hydraulic support, comprise back timber 1, base 2, caving shield and connecting rod (not shown), the utility model caving shield and connecting rod are with of the prior art identical, the rear end of the front end of caving shield and back timber 1 is hinged, between caving shield and base 2, by connecting rod, be hinged, the shielding beam action is: prevent that rear, goaf stone from entering into staff's place, cause danger, be relatively set with several electromagnet 3 on back timber 1 and base 2, electromagnet 3 by connection to power supply, be installed on switch on circuit, can regulate by switch the power of electric current like this.

On above-mentioned back timber 1 and base 2 respectively correspondence be installed on electromagnet 31, electromagnet 32, electromagnet 31 is identical with the size of electromagnet 32, the magnetic pole at electromagnet 31 two ends after energising is identical with the magnetic pole at electromagnet 32 two ends, that is to say, the magnetic pole at the two ends that electromagnet 31 and electromagnet 32 are corresponding is identical, for example: the magnetic pole of electromagnet 31 its left ends is N, right-hand member is S, electromagnet 32 on corresponding with electromagnet 31 so base, the magnetic pole of its left end is also N, right-hand member is S, corresponding electromagnet is owing to mutually repelling between homopolarity, reach the support action to the rock stratum, top.

Between above-mentioned electromagnet 31 and electromagnet 32, the power of repulsive force is controlled according to the power of electric current, and electrical current is larger, and its repulsive force is just larger, just better to the support action of rock stratum, top.

As a preferred version of the present utility model, the vertical distance between above-mentioned electromagnet 31 and electromagnet 32 is the smaller the better, and the less repulsion of distance is larger, and the vertical distance be preferably between electromagnet 31 and electromagnet 32 is 0.3～0.5m.

As another preferred version of the present utility model, above-mentioned power supply is connected with computer, at first computer is controlled power supply, is controlled the power of electric current by the closure of gauge tap again, realizes the Long-distance Control to thin seam mining, is conducive to the development of the mechanization degree of thin seam mining.

Should be understood that; those of ordinary skill in the art is under enlightenment of the present utility model; do not breaking away from the scope situation that the utility model claim protects; can also make the various deformation such as replacement, simple combination, the scope of asking for protection of the present utility model should be as the criterion with claims.

Claims

1. a thin seam mining hydraulic support, comprise back timber, base, caving shield and connecting rod, the front end of described caving shield and the rear end of back timber are hinged, between described caving shield and base, by connecting rod, be hinged, it is characterized in that: be relatively set with several electromagnet on described back timber and base, described electromagnet is by connection to power supply, and the electric current power of described electromagnet can be regulated.

2. a kind of thin seam mining hydraulic support according to claim 1 is characterized in that: corresponding electromagnet on described back timber and base, on the back timber after energising, the magnetic pole at electromagnet two ends is identical with the magnetic pole at electromagnet two ends on base.

3. a kind of thin seam mining hydraulic support according to claim 2, it is characterized in that: described power supply is connected with computer.