CN2204334Y

CN2204334Y - Front-probe support for machine-digging working-surface

Info

Publication number: CN2204334Y
Application number: CN 94214513
Authority: CN
Inventors: 祁江
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-17
Filing date: 1994-06-17
Publication date: 1995-08-02
Anticipated expiration: 2004-06-17

Abstract

The utility model relates to a front-probe support for machine-digging working surfaces, which is a temporary supporting device for digging working surfaces of mines and downholes. The utility model is composed of an upright post, a big beam and small beams. Through the hydraulic control, the upright post is hinged with a cutting arm of a machine set through a rotary base and a lifting oil cylinder. The big beam is arranged at the upper end of the upright post and hinged with supporting oil cylinders uniformly arranged on the upright post. The small beams are symmetrically arranged at both sides of the big beam, one end of each small beam is connected with telescopic oil cylinders correspondingly arranged at both sides of the big beam, and the other end is welded on a connecting block. The utility model is suitable for machine-digging anchor rod tunnels of which the width of the cross section is from 3.5 to 5 meters and the height is from 2.8 to 4 meters. The top length of once support working surface is more than 5.96 meters. The utility model has the advantages of large supporting area, high safety, enlarged circulation progress and obvious economic benefit and social benefit.

Description

Front-probe support for machine-digging working-surface

The utility model belongs to a kind of temporary support device of down-hole, mine driving face.

The temporary lining of down-hole, mine driving face use at present is a kind of forestope of passing along top board.But raising along with digging speed, require driving to strengthen the progress of each circulation as far as possible, avoid the too much time of waste in technology is connected, and this passing formula forestope is hung on roofbolt, flexible distance is short, once can only supporting 2 meters sky top, can not control zero skin fall and large tracts of land is leaked the top, safety that can not the safeguard work face runs into top board and can't not install at ordinary times, after having cut 3 meters, just must beat crab-bolt as early as possible at most, wasted many times in technology is connected, cycle-index is many, has seriously hindered the raising of machine pick speed, economic benefit is not high, and be manual operations entirely, minimum two people could install, and have increased working strength of workers, just as a kind of ornaments, in actual production, do not have in all senses at the scene.

The purpose of this utility model just is to provide a kind of safety factor that improves operating environment, strengthens the progress of each circulation, easy to operate front-probe support.

The utility model is made up of column, large and small beam and three-position four-way valve.Column links to each other with cutting arm by following two fulcrums: the one, and it is hinged that the rotation on column lower end Connection Block and the cutting arm changes base, and the 2nd, the piston rod of column side and hoist cylinder is hinged, and the cylinder body of hoist cylinder is installed in the base of cutting arm; Cushion block is fixed on the column top; The piston rod end and the crossbeam of support cylinder are hinged, then symmetrical uniform being installed on the tube-shape pillar of the cylinder body of support cylinder; Crossbeam is umbrella shape and is contained in the column upper end; Bilateral symmetry in the nearly stud end of i iron crossbeam is equipped with telescopic oil cylinder; Girder also symmetry is contained in the crossbeam both sides, and the one end is connected with the piston rod of telescopic oil cylinder, and the other end is symmetrically welded on the contiguous block; Fixedly steamboat connects by bearing pin, and symmetry is installed in the crossbeam outer end; Mobile steamboat is contained on the steamboat fastening devices that moves with girder; The telescopic oil cylinder of girder all is to be connected with the oil cylinder of two symmetries respectively by a three-position four-way valve with the support cylinder of crossbeam, and the hoist cylinder of column links to each other with three-position four-way valve separately.

The utility model has the advantages that:

1, each feed quantity is big, once can cut 5.5 meters, if 12 meters of class's target advances adopt passing formula forestope, each cutter must not be above 3 meters, so just must there be 4 circulations just can finish, if once can feed 6 meters, the progress of planning 12 meters only needs two circulations just can finish, avoided the time of waste in many technologies linkings, reduce the driving cycle-index, improved operating efficiency, remarkable in economical benefits greatly.

2, the supporting area is big, and is main because the girder on the crossbeam can stretch, and is applicable to that section is wide 3.5～5 meters, high 2.8～4 meters, machine pick anchor pole tunnel, it once can safeguard 5～6 meters sky top, can support 0.5 meter thick absciss layer top board, resembling a umbrella firmly holds top top board, avoided large tracts of land to leak falling of top and big zero skin, beam contacts with top board tightly, does not need the jack rafter of stopping, the workman can beat crab-bolt, the safety that has improved operating environment greatly safely under beam.

3, flexible to operation, alleviated working strength of workers, all adopt hydraulic control, operator only needs 1 people to operate being installed in unit driver's seat next door, finish supporting after, also this device can be drawn in together, mobile at random.

Fig. 1 is a structural representation

Fig. 2 is distribution situation figure

Be described in further detail below in conjunction with accompanying drawing:

Column 10 links to each other with cutting arm 16 by following two fulcrums, the one, column 10 lower end Connection Blocks 11 are hinged with the rotary table 12 on the cutting arm 16, the 2nd, the piston rod of column side and hoist cylinder 13 is hinged, the cylinder body of hoist cylinder 13 is installed in the base 14 of cutting arm 16, cushion block 7 is fixed on the top of column 10, the piston rod end of support cylinder 8 and crossbeam 5 are hinged, then symmetrical uniform being installed on the tube-shape pillar 10 of the cylinder body of support cylinder 8, crossbeam 5 is the upper end that umbrella shape is contained in column 10, bilateral symmetry at i iron crossbeam 5 nearly column 10 ends is equipped with telescopic oil cylinder 6, the also symmetrical both sides that are contained in crossbeam 5 of girder 2, the one end is connected with the piston rod of telescopic oil cylinder 6, the other end is symmetrically welded on the contiguous block 1, fixedly steamboat 3 is installed in crossbeam 5 outer ends by bearing pin connection symmetry, mobile steamboat 4 is contained on the steamboat fastening devices 9 that moves with girder 2, the telescopic oil cylinder 6 of girder 2 and the support cylinder 8 of crossbeam 5 all are oil cylinders of being controlled two symmetries by 1 three-position four-way valve respectively, and the hoist cylinder 13 of column 10 is by an independent three-position four-way valve control.Support process is under the situation that is in cut state or supporting when unit and finishes, and this device is contracted on the cutting arm 16, because of cutting head is 5～6 meters apart from unit driver's seat distance, so disposable cut 5～6 meters after, supporting in the following order:

(1), unit cutting arm 16 is reduced, make the height that can satisfy column 10, press the operation valve of hoist cylinder 13, rise column 10, allow itself and top board maintenance plumbness.

(2), lift cutting arm 16 column 10 top cushion blocks 7 closely contacted with back, prevent roof delamination.

(3), open the operation valve of telescopic oil cylinder 6, girder 2 is stretched out, press the operation valve of support cylinder 8 simultaneously, rise crossbeam 5, large and small beam is contacted with top board simultaneously.

(4), under beam, carry out supporting, if beam and anchor pole location overlap can be readjusted the position of beam.

(5), after supporting finishes, the crossbeam 5 that edges down is regained girder 2.

(6), fall crossbeam 5, be recovered to around the column 10.

(7), reduce cutting arm 16, upright cushion block 7 of living on 10 is broken away from top board puts down column then, allow its top shelf on the back-up block 15 of cutting arm 16, supporting finishes.

Claims

1, a kind of front-probe support of tunneling working face is made of beam and it is characterized in that beam and column are hinged, and column and cutting arm are hinged,

Column links to each other with cutting arm by following two fulcrums, the one, it is hinged that column lower end Connection Block and cutting arm Shang De rotation change base, the 2nd, the piston rod of column side and hoist cylinder is hinged, the cylinder body of hoist cylinder is contained in the base of cutting arm, cushion block is fixed on the column top, the piston rod end and the crossbeam of support cylinder are hinged, then symmetrical uniform being installed on the tube-shape pillar of the cylinder body of support cylinder, crossbeam is umbrella shape and is contained in the column upper end, bilateral symmetry in the nearly stud end of i iron crossbeam is equipped with telescopic oil cylinder, girder also symmetry is contained in the crossbeam both sides, the one end is connected with the piston rod of telescopic oil cylinder, the other end is symmetrically welded on the contiguous block, fixedly steamboat connects by bearing pin, and symmetry is installed in the crossbeam outer end, and mobile steamboat is contained on the steamboat fastening devices that moves with girder, hoist cylinder, support cylinder, telescopic oil cylinder all are connected with three-position four-way valve.