CN2185795Y - Combination frame flexible shield prop device - Google Patents

Abstract

The utility model provides a combination frame flexible prop shielding device, which comprises a plurality of groups of double prop-shaped hydraulic support frame assembles and single hydraulic props among frames which are arranged among the double prop-shaped hydraulic support frame assemblies and are connected with the double prop-shaped hydraulic support frame assemblies through flexible connecting pieces. The utility model with the advantages of strong control capability and adaptability, large width modulating range, strong stability, and high labor efficiency is especially suitable for false vertical dip mining of high inclination-angle and steeply sloping seams.

Description

Combination frame flexible shield prop device

The utility model relates to a kind of group frame flexible shield leg unit that high inclination-angle, half-edge coal seam are mined that is used for.

At present in China's high inclination-angle, the half-edge coal seam coal mining extensive use puppet oblique flexible type shield of bowing.This puppet oblique flexible type shield of bowing still has the following disadvantages:

1., shield support can only passively be carried by section steel manufacture, does not have the Active support ability, to the Surrounding Rock Control ability;

2., support width is certain, can not adapt to the bigger variation of coal seam mining height thickness;

3., support need be in the wind, and lane brush is big to be installed, and the exploitation medium-height trestle is progressively transferred from last air way and changed over the face puppet of the adopting oblique state of bowing, and twisting easily takes place support scurries the position;

4., skew easily takes place and scurries the position adopting during face exploitation transfers in support, and a position attitude is difficult to regulation and control;

5., it is narrow to adopt the face operating space, influences extraction operation and ventilation safety.

For this reason, people work out a kind of puppet tiltedly shielding pillar of bowing again, have obtained certain effect, but still have had the following disadvantages:

1., adapt to the coal seam mining height generally about 1.6～2.0m.When mining height is bigger, the Zhi Huizhu difficulty that hydraulic prop is adopted face at high inclination-angle, the less stable of pillar;

2., relatively poor for the control ability of the soft end and breaking roof, support force of single-column is low, easily push away the end, post, scurry the cash accident, to the control ability deficiency of Yu Yan;

3., the monomer close standing props that puppet is bowed and tiltedly arranged advances with adopting the face exploitation, need manually carry out prop drawing and pillar again, and workload is big, and labour intensity is big, influences efficiency.

In view of above reason, the purpose of this utility model is in order to provide a kind of control ability, adaptive capacity strong, to transfer wide region big, and stability is strong, the group frame flexible shield leg unit that efficiency is high.

Have in the utility model many group queen post hydraulic support assemblies with place queen post hydraulic support inter-module and by hydraulic prop (referring to Fig. 1) between flex link and frame that queen post hydraulic support assembly is connected.

Above-mentioned queen post hydraulic support inter-module has back timber, bottom girder, the group frame that is connected with bottom girder, back timber respectively of the intensive flexible hydraulic prop of the group frame that is connected with back timber, bottom girder and two ends supports hydraulic prop respectively, has one to be connected (referring to Fig. 1) with back timber in the intensive flexible hydraulic prop of group frame.

Between above-mentioned intensive hydraulic prop of group frame and bottom girder diagonal brace (referring to Fig. 2) is arranged, improved the ability of the anti-lateral load of pillar, strengthen structural strength and stability.

Above-mentioned flex link is at least two group double-steel wire ropes and wire clips (referring to Fig. 1) placed on it, will organize the intensive flexible single-piece hydraulic prop of frame and encircle fastening location with group frame support hydraulic prop, forms flexible integral body.

Be provided with intensive individual prop, intensive flexible individual prop (referring to Fig. 3) in the above-mentioned leg unit, a plurality of intensive individual props are formed a row and are applicable to directly adopting face upper end puppet and bow and tiltedly install, normally move needing of frame and installation to solve upper end safety, cover just can be formed intensive flexible individual prop assembly with wire rope and wire clips on a plurality of intensive individual props, longer to be applicable to the face of adopting, in order to add rapid traverse post lowering velocity, needs when needing segmentation to be provided with connect into integral body with the group frame flexible shield pillar of adjacent epimere.

The utility model can be provided with continuously at the face of adopting, and also sectional setting (referring to Fig. 3) moves post adopting transferring of face, generally adopts from top to bottom release piecemeal successively, the continuous operation process that moves down, supports.

Compare with existing technology, the utlity model has following advantage:

1., adopt hydraulic prop to be combined into the flexible shield structure without exception, enough setting loads and working resistance are arranged, strengthened roof control and horse stable rock control ability greatly;

2., improved the adaptive capacity of flexible shield exploitation to coal seam thickness and mining height variation, possess bigger adjustable wide characteristic, and can further enlarge it and transfer wide region to reach about 3～3.5m by changing the hydraulic prop model or adopting the long technology of individual prop loose joint;

3., improve the travelling performance of transferring that has improved flexible support, the flexible pillar that can be in holding state in the utility model is a fixed piovt point, and adjacent flexible pillar is implemented traction, stretching and shifting post, can be implemented under the less critical inclination state, the post that normally moves when spoil thrust is not enough is transferred;

4.,, improved Roof Control ability, prevented that effectively roof fall from leaking the cash accident, fundamentally solved mining steeply dipping coal seam, be difficult to normally use safely the difficult problem of articulated roof beam breaking roof and contiguous seams unitized production because of the use of back timber;

5., be the combination flexible shield pier construction of queen post hydraulic support owing to what adopt, so under situations such as high inclination-angle, big mining height, the soft end, breaking roof, all can keep the normal operating conditions of support and the state of whole supporting.Whole supporting and protection structure, existing enough good flexibilities have enough intensity, rigidity and stability again, prevent down that fundamentally frame scurries the cash accident;

6., adopt new from top to bottom, release piecemeal successively, move the continuous operation process that post is transferred, supported again, make to transfer and move post and be in local controlled overall and move the column attitude, its attitude is easy to control and adjusts, and makes it to keep the situation of working normally;

7., adopt the new fastening locate mode of two steel wire environmental protection, convenient and reliable, the position of scurrying that effectively prevents pillar;

8., broken through conventional art big at tailgate brush, that flexible type shield is installed, adopted directly adopting face upper end puppet and bow and tiltedly install, also solved former flexible support and installed at tailgate, when transferring to the face of adopting then and changing over pseudo-tiltedly state, the easy skew of support, topple over, scurry the difficult problem of position;

9., break through former flexible type shield and can not adopt the conventional art that the face segmentation is provided with.Length and arts demand that the utility model can be bowed and tiltedly adopt face according to puppet can be provided with adopting face segmentation overlap joint, to realize the segmentation parallel operations;

10., the bigger minimum distance of face roof under control is arranged, be convenient to back production operation and ventilation safety.Adopt the top board that face exploitation exposes, generally can prop up interim some post, also can take in time to transfer and move the post mode and control;

10., labour intensity is low, and efficient improves, and safety is good, has not only overcome the critical defect of former flexible type shield but also has solved the puppet tiltedly existing problem of shielding pillar coal-mining method of bowing.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model structural representation

Fig. 2 is the A-A sectional view of Fig. 1

Fig. 3 is adopting the arrangement diagram of face for the utility model

Fig. 4 is the structure of bottom girder schematic diagram

Fig. 5 is the B-B sectional view of Fig. 4

Fig. 6 is the vertical view of Fig. 4.

Fig. 1, Fig. 2 have provided the utility model and have implemented illustration.Referring to Fig. 1, Fig. 2, many group queen post hydraulic support assemblies 1 are arranged in the utility model.In every group of queen post hydraulic support assembly back timber 2, bottom girder 3 are arranged, intensive flexible hydraulic prop 4 of group frame and group frame hydraulic prop 5.Referring to Fig. 4-Fig. 6, bottom girder 3 is the T type, adopts No. 11 miner's steel to make, last welding steel circle 6 location, and support on two location steel rings of hydraulic prop 5 and the intensive flexible individual prop 4 of group frame thereof four nuts 7 of boring weldering at the group frame.Referring to Fig. 2, the girth member 9 that has diagonal brace 8 and mining height to use on the bottom girder 3.The lower end that intensive flexible hydraulic prop 4 of group frame and group frame support hydraulic prop 5 all is positioned at the corresponding location steel ring on the bottom girder 3, and the lower end of the pillar 4,5 that is connected with back timber to the major general uses dog screw 10 fastening.The U type card made from round steel 11 be stuck in the group intensive flexible hydraulic prop 4 of frame and with girth member 9 on and tighten with fixing slide block 12.Back timber 2 adopts the articulated roof beam of long 1.0m, and on hydraulic prop 4,5 top covers that are connected with articulated roof beam, increases the corresponding articulated joint 13 of weldering or the hinged ears or side handles of a utensil 14, adopts pin to connect into frame.

Referring to Fig. 1, hydraulic prop 15 between frame is arranged at queen post hydraulic support assembly and inter-module.Combine with wire rope 16, wire clips 17.In order to reduce processing capacity, improve the fastening performance of wire rope, adopt the standard component wire rope to roll card in the present embodiment and make wire clips (and can process corresponding U type wire clips voluntarily), the spacing of hydraulic prop 4,5 is 0.2m, group is 1.2m with group distance, and the minimum distance of face roof under control of the face of adopting is 1.8m.

Generally establishing one to two road double-steel wire rope on the bottom cylinder body of hydraulic prop 15 between hydraulic prop 4 and frame encircles chucking, prevent its loosening position of scurrying, and on the cylinder alive of the top of hydraulic prop 15 between hydraulic prop 4 and frame, generally establishing one double-steel wire rope encircles, and encircle chucking with the cylinder alive of the hydraulic prop 4 that back timber is arranged, and can allow in encircling steel cable flexiblely up and down with the cylinder alive of remaining hydraulic prop 4,15, but do not allow the position of scurrying of an intercolumniation.

Fig. 3 is that the utility model is being adopted the layout use figure of face.Need not brush big tailgate, in tailgate, not install, and directly bow and tiltedly install adopting face upper end multiple operation face puppet.Help to stay 1～1.5m apart from last air way coal during installation, be close to the utility model rear and make a call to the monomer close standing props 18 that the about 3～5m of a platoon leader adopts hydraulic prop to form, and seal the breach that stays, isolate the goaf, and strengthen the upper end supporting intensity.

When the face of adopting advances reach, be supporting-point with the individual prop that is positioned at air way earlier, traction, control epimere group frame flexible shield pillar (unloading length generally is controlled at about 5m) are advanced to new position, spreading group frame then, again support bearing, then as the upper support point, descend piecemeal successively that release, reach are transferred, support bearing operation again.Every section release length generally is controlled at about 5～10m (comprising that moving the changeover portion that post transfers takes out stitches about length 3～5m).Moving during post transfers, can an adjacent supports carrying section pillar be supporting-point, adopts individual prop and draw-gear that the pillar that moves in the post is drawn, controls, draws, prevents its swing, skew etc., keeps its normal state.

When the face of adopting is longer, can adopt segmentation that flexible shield pillar mode is set.Referring to Fig. 3, segmentation place structure, in the back of hypomere group frame flexible shield pillar upper end, be close to intensive flexible individual prop 19(that the employing hydraulic prop that is provided with about a segment length 3～5m forms and encircle fastening structure with epimere group frame flexible shield pillar lower end employing 2～3 road double-steel wire ropes and be connected as a body).When hypomere group frame flexible shield pillar moves post, also with the pillar under the epimere loaded state be fixed piovt point traction control hypomere pillar down release successively piecemeal, move that post is transferred, support bearing, operation are same as described above with technology and the mode of regulating and control state again.At last, the intensive flexible individual prop of overlap joint section, with epimere bottom transferring of pillar move post, reach is overlapped on hypomere pillar upper end again, recovers normal supporting state.Sequence number 20 is the goaf among Fig. 3, and the arrow indication is an advance of the face direction.

Sequence number 21,22,23,24 is respectively roof, adopts face rib, seat earth, goaf among Fig. 2.

Claims (5)

1, assembly flexible shield leg unit, it is characterized in that having in the described leg unit many group queen post hydraulic support assemblies with place queen post hydraulic support inter-module and by hydraulic prop between flex link and frame that queen post hydraulic support assembly is connected.

2, as claimed in claim 1 group of frame flexible shield leg unit, it is characterized in that in the described queen post hydraulic support assembly back timber, bottom girder being arranged, intensive flexible hydraulic prop of the group frame that is connected with back timber, bottom girder and group frame support hydraulic prop respectively.

3, as claimed in claim 2 group of frame flexible shield leg unit is characterized in that being connected with diagonal brace between described group of intensive flexible hydraulic prop of frame and bottom girder.

4, as claimed in claim 1 group of frame flexible shield leg unit is characterized in that described flex link is at least two group wire rope and steel card placed on it.

5, as claimed in claim 1 group of frame flexible shield leg unit is characterized in that being provided with in the described leg unit intensive individual prop, intensive flexible individual prop.

Images