CN203394559U - Support device for inclined coal seams - Google Patents

Support device for inclined coal seams Download PDF

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Publication number
CN203394559U
CN203394559U CN201320459922.XU CN201320459922U CN203394559U CN 203394559 U CN203394559 U CN 203394559U CN 201320459922 U CN201320459922 U CN 201320459922U CN 203394559 U CN203394559 U CN 203394559U
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joist
framed bent
back timber
angle
coal
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CN201320459922.XU
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Chinese (zh)
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吕宝贵
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吕宝贵
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Abstract

The utility model discloses a support device for inclined coal seams and belongs to the field of support equipment of underground mining working faces of coal mines. The support device for the inclined coal seams at least comprises joists, stulls, stand columns, pin shafts, pins and hydraulic thrust cylinders. The included angle between every joist and the corresponding stull is smaller or larger than 90 degrees. Compared with various supports in the prior art, the designed angle between the joist and the stull is changed from 90 degrees to an angle fit for an actual working face, so that when in use, the support of the working face can change the angle freely, and the working face can be automatically adjusted into a more appropriate angle, further coal drops from the coal wall of the working face can enters a conveyor easily, and coal recovery operation can be simplified; meanwhile, gangue cannot flow into the working face easily; coal flow-empty at the top of the support cannot occur easily, so that the stability of the support is guaranteed, and the safety of the working face and the coal recovery rate can be both improved. The support device for the inclined coal seams bring more convenience to inclined coal seam exploitation.

Description

A kind of inclined seam support apparatus
Technical field
The utility model relates to the support apparatus field of colliery underground mining work plane, particularly a kind of inclined seam support apparatus.
Background technology
In coal mining, due to coal seam at self-assembling formation Shi, angle of inclination also with regard to self-assembling formation.Inclined seam is spent for the most difficult exploitation with 25 degree-45, especially angle also may be along with exploitation continues angle changing, so just more difficult exploitation, at some middle-size and small-size exploitation work planes, due to a variety of causes, cannot use large-scale fully-mechanized mining equipment, bring more danger to the exploitation of inclined seam, for example, the safety of personnel walking, tumbles various objects to people's injury danger etc.
Support device for coal mine of the prior art, by a kind of by bar shaped back timber and the stope hydraulic prop equipment that forms with bar t joist that bar shaped back timber is arranged at an angle of 90; Another kind is the mining device consisting of integral top beam hydraulic support and split top beam hydraulic rack.
In realizing process of the present utility model, inventor finds that prior art at least exists following problem:
Existing Liang Zhong colliery coal face support equipment, be to be all provided with joist, and back timber and joist be arranged at an angle of 90, their common defects is that joist becomes to be arranged vertically with exploitation work plane direction of advance, namely lateral arrangement, makes the coal breakage of working face wall be not easy to enter in transporter.
When support is when the full-seam mining, the immediate roof of work plane is if breaking roof, and the spoil falling in advance, is easy in work plane, pour in shock rear pillar, until bury rear pillar.
When work plane is top-coal caving face, support top is coal, and these coals will reclaim into from the rear portion of support, then transport with the transporter of work plane, and the work plane that 90 degree are arranged makes the recovery operation of coal complicated.
Because inclination top-coal caving face props up top of the trellis, be that coal and coal are easily broken yet, and easily flow, often make the coal stream of a top of the trellis empty, the support of top coal is not unsettled, and frame easily occurs, and the safety of work plane is affected.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of inclined seam support apparatus.Make face self be adjusted to suitable angle, the coal breakage of being convenient to working face wall enters in transporter, and bracket stable is reliable, improves the safety of work plane.Described technical scheme is as follows:
A support apparatus, at least comprises: joist, back timber, column, bearing pin, wear pin, hydraulic drive cylinder, it is characterized in that, the angle between described back timber and described joist is to be less than 90 degree or to be greater than 90 degree to be arranged.
Particularly, above spaced at least two described columns, be horizontally disposed with spaced at least two described joists, at least two described joists, be provided with spaced at least two described back timbers.
Particularly, described column is hydraulic elevation type, every root post is vertical with base plate to be arranged, described back timber and described joist form roof beam structure unit, several roof beam structure unit combination become to include the support device for coal mine of front framed bent and rear framed bent, described front framed bent and described rear framed bent are two steel frame constructions independently separately, the described joist of framed bent before described hydraulic drive cylinder one end connects, and the other end connects the described joist of the rear framed bent adjacent with the described joist of front framed bent.
Further, the described back timber of some front framed bents longitudinally arranges, and the described joist of many front framed bents is laterally placed on the below of the described back timber of front framed bent, connects firmly the front framed bent of rear formation.
Further, the described back timber of framed bent longitudinally arranges after some, and the described joist of framed bent is laterally placed on the below of the described back timber of rear framed bent after many, connects firmly framed bent after rear formation.
Particularly, described hydraulic drive cylinder one end is connected on the described back timber of front framed bent, the described back timber of framed bent after the other end connects; Described front framed bent and rear framed bent under described hydraulic drive cylinder telescopic action successively to front slide.
Particularly, described roof beam structure unit combination becomes inclined seam hydraulic prop equipment, at least comprise force piece, advance support, described advance support is vertical with base plate to be arranged, between described advance support, be described force piece, the angle between described force piece and horizon is the angle of inclination that nature of coal seam forms.
Described two advance supports are arranged in former roadway support particularly, described force piece direction of advance is identical with exploitation work plane direction of advance, it is that work plane and direction of advance are greater than 90 degree that the first angle is set, and it is that work plane and direction of advance are less than 90 degree that the second angle is set.
Particularly, described joist, back timber are selected square or I-shaped structure steel, arrange porosely on described joist, and described back timber bottom is provided with described bearing pin, described bearing pin inserts in the hole of described joist and is actively coupled, and by described transverse pin, described bearing pin is fixed in described hole.
Further, described joist and described back timber angle on demand adopts and is welded and fixed, or is arranged on described joist and is greater than 90 degree or is less than 90 degree in order to control the set positions angle of the slip keeper of described back timber direction of advance by change.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
By the back timber of various supports in prior art is designed to the needed angle of real work face with the design angle between joist by vertical 90 degree,, be less than 90 degree or be greater than 90 degree, or make the force piece in use can randomly changing angle, so that face self is adjusted to more suitably angle, the coal breakage of being convenient to working face wall is easy to enter in transporter, makes spoil be difficult for pouring in work plane simultaneously; Or the difficult stream sky that occurs of the coal that makes a top of the trellis, guarantee bracket stable, and make the recovery operation simplification of coal; Improve the safety of work plane, and coal yield; This support apparatus brings more convenience to the exploitation of inclined seam.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the rear elevation of support apparatus partial structurtes schematic diagram for the inclined seam that provides of the utility model embodiment;
Fig. 2 is the top view of support apparatus partial structurtes schematic diagram for the inclined seam that provides of the utility model embodiment;
Fig. 3 is the lateral view of the roof beam structure modular construction schematic diagram of support apparatus for the inclined seam that provides of the utility model embodiment;
Fig. 4 is I portion enlarged drawing in Fig. 1 of providing of the utility model embodiment;
Fig. 5 is the upward view of Fig. 4 of providing of the utility model embodiment;
Fig. 6 is the rear elevation of support apparatus overall structure schematic diagram for the inclined seam that provides of the utility model embodiment;
Fig. 7 top view that to be the inclined seam that provides of the utility model embodiment be greater than 90 degree structural representations with work plane and the direction of advance angle of support apparatus;
Fig. 8 top view that to be the inclined seam that provides of the utility model embodiment be less than 90 degree structural representations with work plane and the direction of advance angle of support apparatus.
In figure, each symbol represents that implication is as follows:
1 joist ,1.1 hole;
2 back timbers;
3 columns;
4 bearing pins;
5 wear pin;
6 hydraulic drive cylinders;
A force piece;
Supporting before B ultrasonic;
The former roadway support of C;
The angle of inclination that a nature of coal seam forms;
B the first angle;
C the second angle;
Filled arrows direction is exploitation work plane direction of advance (being force piece direction of advance);
Hollow arrow direction is that spoil or top coal tumble direction.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Shown in Fig. 1, Fig. 2, the utility model embodiment provides a kind of inclined seam support apparatus, and this support apparatus at least comprises: joist 1, back timber 2, column 3, bearing pin 4, wear pin 5, hydraulic drive cylinder 6 etc.; Particularly, described spaced at least two root posts 3 have been horizontally disposed with spaced at least two joists 1 above, are provided with spaced at least two back timbers 2 on described at least two joists 1; Angle between described back timber 2 and joist 1 is according to non-perpendicular layout, that is, angle is to be less than 90 degree or to be greater than 90 degree and arranges between the two.
Simultaneously shown in Figure 3; described column 3 is hydraulic elevation type; every root post 3 is vertical with base plate to be arranged; described back timber 2 forms roof beam structure unit with joist 1; several roof beam structure unit combination become to include the support device for coal mine of front framed bent and rear framed bent; for prior art, this support apparatus has obtained utility model patent, and the patent No. is 201020576823.6; Particularly, the back timber 2 of some front framed bents longitudinally arranges, and the joist 1 of many front framed bents is laterally placed on the below of the back timber 2 of front framed bent, connects firmly the front framed bent of rear formation; After some, the back timber 2 of framed bent longitudinally arranges, and the joist 1 of framed bent is laterally placed on the below of the back timber 2 of rear framed bent after many, connects firmly framed bent after rear formation.
The front framed bent in use assembling and rear framed bent are two steel frame constructions independently separately, the joist 1 of framed bent before described hydraulic drive cylinder 6 one end connect, and the other end connects the joist 1 of the rear framed bent adjacent with the joist 1 of front framed bent; Described hydraulic drive cylinder 6 one end also can be connected on the back timber 2 of front framed bent, the back timber 2 of framed bent after the other end connects; After assembling, front framed bent and rear framed bent can be under hydraulic drive cylinder 6 telescopic actions, successively to front slide.
Shown in Fig. 4, Fig. 5, described joist 1, back timber 2 are selected square structure steel, on joist 1, arrange porose 1.1, back timber 2 bottoms are provided with bearing pin 4, bearing pin 4 inserts in the hole 1.1 of joist 1, back timber 2 can rotate on joist 1 centered by bearing pin 4, and can bearing pin 4 be fixed in hole 1.1 by transverse pin 5.
Shown in Figure 6, described a plurality of roof beams structure unit can form stope hydraulic prop equipment in actual applications, comprise force piece A, advance support B, described advance support B is vertical with base plate to be arranged, between two advance support B, be force piece A, angle a between force piece A and horizon is the angle of inclination that nature of coal seam forms, for inclined seam supporting.
Shown in Figure 7, described inclined seam is arranged in former roadway support C with two advance support B of support apparatus, it is identical that force piece A direction of advance and filled arrows direction exploit work plane direction of advance, during for full-seam mining, it is that work plane and direction of advance are greater than 90 degree that the first angle b is set, be about to the duty that work plane is arranged to be greater than with direction of advance 90 degree, some just directly tumbles the spoil that force piece A rear portion falls in advance like this to work plane lowest part, and be not easy in work plane, to have gushed spoil again, solve inclined cut and gushed spoil, clash into rear pillar, bury the problem of rear pillar, and the coal breakage that is conducive to working face wall enters in transporter.
Shown in Figure 8, it is that work plane and direction of advance are less than 90 degree that the second angle c is set, be about to the duty that top-coal caving face is arranged to be less than with direction of advance 90 degree, after coal on top, force piece A rear portion falls like this, the angle of inclination a that can form along nature of coal seam flows in trend support, make the recovery operation of coal simple and convenient, and the phenomenon that the coal on support top runs off in advance can significantly reduce along with advancing reducing of inclination angle.
In sum, the back timber 2 of the utility model embodiment and the angle relation between joist 1 are according to non-perpendicular layout, and such exploitation of assigning inclined seam brings more convenience; Remove the mode that described employing bearing pin 4 is actively coupled back timber 2 and joist 1, can also in order to control the set positions angle of the slip keeper (positioning disk or locating piece) of back timber 2 directions of advance, be greater than 90 degree or be less than 90 degree by changing existing being arranged on joist 1, or joist 1 is worn to pin with back timber 2 angle employing on demand and fix, even adopt to be welded and fixed and all can.
The operating principle of the utility model embodiment: by changing the angle relation between back timber 2 and joist 1, by the back timber of various supports in prior art 2 with the design angle of joist 1 by vertical 90 relations of spending, the needed angle of the real work face of being designed to, make the angle between back timber 2 and joist 1 be less than 90 degree or be greater than 90 degree, like this, in the situation that back timber 2 is parallel with support direction of advance, joist 1 is inclined, with direction of advance with regard to out of plumb, because joist 1 is not plumbness with back timber 2, so force piece integral body towards just inconsistent with its direction of advance, namely before the head rest of work plane one end, after other end head rest, advance forward sideling.
Because on Yi Ge inclined plane, from height, with the shortest air line distance, to low this, be a straight line with horizontal plane maximum angle, and to lower, extend gradually by an angled straight lines from height, the angle of this line and horizontal plane is just little.So overall work Mian inclination angle is little in the practical application of support, due to the change of angle, produced the beneficial effect that can reduce inclined cut angle, improved the safety that personnel walk in work plane.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. an inclined seam support apparatus, at least comprise: joist (1), back timber (2), column (3), bearing pin (4), wear pin (5), hydraulic drive cylinder (6), it is characterized in that, the angle between described back timber (2) and described joist (1) is to be less than 90 degree or to be greater than 90 degree to be arranged.
2. inclined seam support apparatus according to claim 1, it is characterized in that, spaced at least two described columns (3) have been horizontally disposed with spaced at least two described joists (1) above, are provided with spaced at least two described back timbers (2) at least two described joists (1).
3. inclined seam support apparatus according to claim 2, it is characterized in that, described column (3) is hydraulic elevation type, every root post (3) is vertical with base plate to be arranged, described back timber (2) forms roof beam structure unit with described joist (1), several roof beam structure unit combination become to include the support device for coal mine of front framed bent and rear framed bent, described front framed bent and described rear framed bent are two steel frame constructions independently separately, the described joist (1) of framed bent before described hydraulic drive cylinder (6) one end connects, the other end connects the described joist (1) of the rear framed bent adjacent with the described joist (1) of front framed bent.
4. inclined seam support apparatus according to claim 3, it is characterized in that, the described back timber (2) of some front framed bents longitudinally arranges, and the described joist (1) of many front framed bents is laterally placed on the below of the described back timber (2) of front framed bent, connects firmly the front framed bent of rear formation.
5. inclined seam support apparatus according to claim 3, it is characterized in that, after some, the described back timber (2) of framed bent longitudinally arranges, and the described joist (1) of framed bent is laterally placed on the below of the described back timber (2) of rear framed bent after many, connects firmly framed bent after rear formation.
6. inclined seam support apparatus according to claim 3, is characterized in that, described hydraulic drive cylinder (6) one end is connected on the described back timber (2) of front framed bent, the described back timber (2) of framed bent after the other end connects; Described front framed bent and rear framed bent under described hydraulic drive cylinder (6) telescopic action successively to front slide.
7. inclined seam support apparatus according to claim 3, it is characterized in that, described roof beam structure unit combination becomes inclined seam hydraulic prop equipment, at least comprise force piece (A), advance support (B), described advance support (B) is vertical with base plate to be arranged, between described two advance supports (B), be described force piece (A), the angle of inclination that the angle (a) between described force piece (A) and horizon forms for nature of coal seam.
8. inclined seam support apparatus according to claim 7, it is characterized in that, described two advance supports (B) are arranged in former roadway support (C), described force piece (A) direction of advance is identical with exploitation work plane direction of advance, the first angle (b) is set for work plane and direction of advance are greater than 90 degree, the second angle (c) is set and is less than 90 degree for work plane and direction of advance.
9. inclined seam support apparatus according to claim 1, it is characterized in that, described joist (1), back timber (2) are selected square or I-shaped structure steel, on described joist (1), arrange porose (1.1), described back timber (2) bottom is provided with described bearing pin (4), described bearing pin (4) inserts in the hole (1.1) of described joist (1) and is actively coupled, and by described transverse pin (5), described bearing pin (4) is fixed in described hole (1.1).
10. inclined seam support apparatus according to claim 1, it is characterized in that, described joist (1) adopts and is welded and fixed with described back timber (2) angle on demand, or is arranged on described joist (1) and is greater than 90 degree or is less than 90 degree in order to control the set positions angle of the slip keeper of described back timber (2) direction of advance by change.
CN201320459922.XU 2013-07-30 2013-07-30 Support device for inclined coal seams Active CN203394559U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649628A (en) * 2016-01-15 2016-06-08 西安科技大学 False-inclined inclination-angle-variable arrangement method for large-dip-angle coal seam angle-variable fully-mechanized coal mining/caving working face

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105649628A (en) * 2016-01-15 2016-06-08 西安科技大学 False-inclined inclination-angle-variable arrangement method for large-dip-angle coal seam angle-variable fully-mechanized coal mining/caving working face
CN105649628B (en) * 2016-01-15 2018-07-10 西安科技大学 The large-inclination-angle coal bed comprehensive coal mining caving working face puppet of varied angle, which is faced upward, tiltedly becomes inclination angle method for arranging

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