CN206477873U - For large-inclination-angle coal bed supporting structure - Google Patents
For large-inclination-angle coal bed supporting structure Download PDFInfo
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- CN206477873U CN206477873U CN201720143745.2U CN201720143745U CN206477873U CN 206477873 U CN206477873 U CN 206477873U CN 201720143745 U CN201720143745 U CN 201720143745U CN 206477873 U CN206477873 U CN 206477873U
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- Prior art keywords
- supporting leg
- retaining frame
- upper supporting
- leg
- back timber
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Abstract
The utility model discloses for large-inclination-angle coal bed supporting structure, including upper supporting leg, upper supporting beam, back timber, lower supporting beam, lower supporting leg, first hydraulic cylinder is rotatably connected between upper supporting leg and back timber, it is lower that second hydraulic cylinder is rotatably connected between supporting leg and back timber；The upper supporting beam retaining frame that also includes being arranged on upper supporting leg retaining frame outside upper supporting leg, be arranged on outside supporting beam, the back timber retaining frame being arranged on outside back timber, the lower supporting beam retaining frame being arranged on outside lower supporting beam, the lower supporting leg retaining frame being arranged on outside lower supporting leg, are attached between upper supporting leg and upper supporting leg retaining frame, between upper supporting beam and upper supporting beam retaining frame, between back timber and back timber retaining frame, between lower supporting beam and lower supporting beam retaining frame, between lower supporting leg and lower supporting leg retaining frame by support bar；Sheathed spring on support bar.The purpose of this utility model, which is to provide, is used for large-inclination-angle coal bed supporting structure, to improve the supporting stability and security when large-inclination-angle coal bed crustal stress discharges slow.
Description
Technical field
The utility model is related to coal mining field, and in particular to for large-inclination-angle coal bed supporting structure.
Background technology
Support apparatus in coal-face is the support facility of Safety Work in Colliery, stability during its use, with
And the controllability of shifting frame is the important indicator of this kind equipment.Existing comprehensive mining hydraulic bracket can fully meet medium-thickness seam exploitation
Safety and reliability requirement, but exploitation of the inclination angle less than 50 degree of coal seams is usually applicable only to, and it is more than 50 degree for inclination angle
Steeply-inclined seam mining, because support unit downslide component is excessive, the steadiness extreme difference of equipment itself.Therefore, existing hydraulic support
Half-edge coal seam is not suitable for, even if using pseudo- production technique of bowing, it is also difficult to basic to eliminate the hidden danger that support unit glides.So far
Untill, the supporting of steeply-inclined seam mining is still each all still unsolved problem of producing coal country in the world safely.At present, it is anxious both at home and abroad
Medium Thickness And Medium Slope Angle coal seam is mined to be used between rigid polygon roof truss shape supporting structure, adjacent stent using steel wire rope connection mostly
Flexible shielding system is formed, to isolate goaf and excavation, coal miner is carried out under the support protection of shielding system
Coal work.The supporting structure of the shielding system is simple, and working face is longlyer settable；Support voluntarily transfers realization by gravity
Frame is moved, realizes that coal-face moves towards to promote along mining naturally, it promotes continuous and simplifies roof control, alleviates top of support
The heavy physical labor that grillage sets and removed.But the support of existing flexible shield has following defect, one is that can not adjust height
And width, to coal seam thickness and change of pitch angle bad adaptability；Two be that excavation is limited, and is not suitable with mechanical mining, Gong Rengong
Make bad environments, labor intensity is big, yields poorly, the problems such as safety guarantee is low and security incident takes place frequently；Three be that support is depended on
Coal body is supported, and its decentralization opportunity can not high-volume be effectively controlled with.Therefore, those skilled in the art has carried out some spies
Rope, and certain effect, such as Chinese patent notification number CN103643980B are achieved, utility model title is " in a kind of high-dipping
High seam shield support ", the stability and security for disclosing a kind of supporting is good, and can be with coal seam thickness and change of pitch angle
Adjustment, coal seam recovery ratio and mechanization degree are high.But the support is poor in the presence of reply crustal stress releasing effect, is released for crustal stress
The adaptive faculty for slowing down slowly layer is not good, and the crustal stress that easily later stage is slowly discharged is destroyed, and causes later stage exploitation to be interfered
The problem of even down-hole accident being induced when serious.Need to be further improved for this.
Utility model content
The purpose of this utility model, which is to provide, is used for large-inclination-angle coal bed supporting structure, improves large-inclination-angle coal bed to realize
The purpose of supporting stability and security when crustal stress release is slow.
The utility model is achieved through the following technical solutions：
For large-inclination-angle coal bed supporting structure, including be hinged successively upper supporting leg, upper supporting beam, back timber, lower supporting beam,
Lower supporting leg, the upper supporting leg includes upper supporting leg main body and upper supporting leg extrusome, and the lower supporting leg includes lower leg body and lower branch
Leg extrusome, is rotatably connected to first hydraulic cylinder between upper supporting leg and back timber, lower that second is rotatably connected between supporting leg and back timber
Hydraulic cylinder, the upper supporting leg, the free end of lower supporting leg are respectively provided with sharp head；Between lower leg body and lower landing leg stretching body
Guide rail auxiliary structure is formed with, fixed mobile path of the guideway to limit lower landing leg stretching body, and the fixed mobile path
With the diameter parallel of lower leg body；Guide rail auxiliary structure is formed between upper supporting leg main body and upper supporting leg extrusome, the guideway
Fixed mobile path to limit upper supporting leg extrusome, and the diameter parallel of the fixed mobile path and upper supporting leg main body；Also
Including：It is arranged on the upper supporting leg retaining frame outside upper supporting leg, the upper supporting beam retaining frame being arranged on outside supporting beam, is arranged on back timber
The back timber retaining frame of outside, the lower supporting beam retaining frame being arranged on outside lower supporting beam, the lower supporting leg retaining frame being arranged on outside lower supporting leg,
The upper supporting leg retaining frame, upper supporting beam retaining frame, back timber retaining frame, lower supporting beam retaining frame, lower supporting leg retaining frame pass sequentially through rotating shaft activity
Connection, between upper supporting leg and the upper supporting leg retaining frame, between upper supporting beam and upper supporting beam retaining frame, back timber and back timber retaining frame it
Between, be fixedly connected by support bar between lower supporting beam and lower supporting beam retaining frame, between lower supporting leg and lower supporting leg retaining frame；
The upper supporting leg retaining frame, the free end of lower supporting leg retaining frame are hinged on base；Sheathed spring on the support bar.
For in the prior art, the problem of adaptive faculty that coal seam support discharges slow stratum for crustal stress is not good, this reality
With new proposition it is a kind of be used for large-inclination-angle coal bed supporting structure, including upper supporting leg of the prior art, upper supporting beam, back timber,
Lower supporting beam, lower supporting leg, and first hydraulic cylinder, second hydraulic cylinder, said structure constitute internal layer support knot of the present utility model
Structure, sets corresponding outer layer supporting construction, the outer layer supporting construction is protected by upper supporting leg in the outside of internal layer supporting construction in addition
Frame, upper supporting beam retaining frame, back timber retaining frame, lower supporting beam retaining frame, lower supporting leg retaining frame composition, are outer layer supporting construction and internal layer branch
The building block of support structure is identical, is constituted between each part between one-to-one relation, corresponding ectonexine support member
It is attached by fixed support bar, that is, is so that the frame structure for being formed and being connected by support bar between internal layer and outer layer.It is excellent
Elect supporting construction surface of the support bar both perpendicular to ectonexine as.In addition, also on support bar sheathed spring, spring is preferably
In compressive state.During the slow release of crustal stress, radial stress can act on outer layer supporting construction first, i.e., upper branch
Leg retaining frame, upper supporting beam retaining frame, back timber retaining frame, lower supporting beam retaining frame, in lower supporting leg retaining frame, then transmitted with spring by support bar
On to traditional internal layer supporting construction, due to foring the supporting construction of bilayer, therefore stress drop suffered in unit volume
Low, while crustal stress is applied on spring rear compression spring, spring produces elastic reset power, balances out the crustal stress of part, drops
The low active force being finally transmitted in internal layer supporting construction, i.e. reduction are finally transmitted to upper supporting leg, upper supporting beam, back timber, lower branch
Power on guard beam, lower supporting leg.During being discharged in the crustal stress later stage, spring is in compressive state all the time, therefore whole
The reduction all the time for being capable of continuation during crustal stress release is transferred to the active force on inner supporting structure, and according to suffered
The size of crustal stress size adjust automatically elastic reset power, i.e. spring is higher by compression degree, and elastic reset power is bigger.Therefore originally
Utility model is compared to prior art, it is possible to increase supporting stability and safety when large-inclination-angle coal bed crustal stress discharges slow
Property.
It is preferred that, the support bar is expansion link.With the change of crustal stress size, between inside and outside two layers of supporting construction
There is the possibility of micro adjustment deformation in distance, therefore set support bar to be expansion link under different stressing conditions, can prevent this
Plant the harm that may be brought so that the length of expansion link is carried out automatic as the distance between inside and outside two layers of supporting construction changes
Change, consequently facilitating ensuring, using safety, to improve service life.
It is preferred that, the first hydraulic cylinder is provided with N number of, and second hydraulic cylinder is provided with M, wherein M, N be more than etc.
In 2 integer.Be that upper supporting leg and back timber are connected by N number of first hydraulic cylinder, by M second hydraulic cylinder connect lower supporting leg and
Back timber so that more powerful to the support force of back timber, thus to the borehole wall that firm performance is made is stronger.
It is preferred that, the first hydraulic cylinder, second hydraulic cylinder are double acting hydraulic cylinder.
It is preferred that, M second hydraulic cylinder is attached by same rotating shaft with lower supporting leg.It is M second hydraulic cylinder
It is both connected to the connection end of lower supporting leg in same rotating shaft, M second hydraulic cylinder forms diverging from this end of lower supporting leg to back timber
Shape structure, in the case where stratigraphic dip is larger, second hydraulic cylinder is present apparatus major support members, therefore in this preferred scheme
Setting can be easy to concentrate stress so as to which the reinforcing concentrated is strengthened.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model is used for large-inclination-angle coal bed supporting structure, being capable of continuation during entirely stress release
Reduction all the time be transferred to active force on inner supporting structure, and according to suffered crustal stress size adjust automatically elastic reset
The size of power.Therefore the utility model is compared to prior art, it is possible to increase branch when large-inclination-angle coal bed crustal stress discharges slow
Protect stability and security.
2nd, the utility model is used for large-inclination-angle coal bed supporting structure, with the change of crustal stress size, inside and outside two layers
There is the possibility of micro adjustment deformation in the distance between support structure, therefore set support bar to be flexible under different stressing conditions
Bar, can prevent this harm that may be brought so that the length of expansion link is with the distance between inside and outside two layers of supporting construction
Change and changed automatically, consequently facilitating ensuring, using safety, to improve service life.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part, does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the structural representation of the utility model specific embodiment.
Mark and corresponding parts title in accompanying drawing：
Supporting leg under supporting beam under 1- upper supporting legs, the upper supporting beams of 2-, 3- back timbers, 4-, 5-, 6- first hydraulic cylinders, the liquid of 7- second
Supporting leg retaining frame under supporting beam retaining frame under cylinder pressure, 8- upper supporting leg retaining frames, the upper supporting beam retaining frames of 9-, 10- back timber retaining frames, 11-, 12-,
13- support bars, 14- bases, 15- springs.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, is not intended as limiting of the present utility model.
Embodiment 1：
It is as shown in Figure 1 to be used for large-inclination-angle coal bed supporting structure, including be hinged successively upper supporting leg 1, upper supporting beam 2,
Back timber 3, lower supporting beam 4, lower supporting leg 5, the upper supporting leg 1 include upper supporting leg main body and upper supporting leg extrusome, and the lower supporting leg 5 is wrapped
Lower leg body and lower landing leg stretching body are included, first hydraulic cylinder 6, lower supporting leg and back timber are rotatably connected between upper supporting leg and back timber
Between be rotatably connected to second hydraulic cylinder 7, the upper supporting leg 1, the free end of lower supporting leg 5 are respectively provided with sharp head；Lower supporting leg
Guide rail auxiliary structure is formed between main body and lower landing leg stretching body, fixed movement of the guideway to limit lower landing leg stretching body
Path, and the fixed mobile path and the diameter parallel of lower leg body；Formed between upper supporting leg main body and upper supporting leg extrusome
Have guide rail auxiliary structure, fixed mobile path of the guideway to limit upper supporting leg extrusome, and the fixed mobile path with it is upper
The diameter parallel of leg body；Also include：It is arranged on the upper supporting leg retaining frame 8 outside upper supporting leg 1, is arranged on outside supporting beam 2
Upper supporting beam retaining frame 9, the back timber retaining frame 10 being arranged on outside back timber 3, the lower supporting beam retaining frame that is arranged on outside lower supporting beam 4
11st, be arranged on the lower supporting leg retaining frame 12 outside lower supporting leg 5, the upper supporting leg retaining frame 8, upper supporting beam retaining frame 9, back timber retaining frame 10,
Lower supporting beam retaining frame 11, lower supporting leg retaining frame 12 pass sequentially through rotating shaft flexible connection, between the upper supporting leg 1 and upper supporting leg retaining frame 8,
Between upper supporting beam 2 and upper supporting beam retaining frame 9, between back timber 3 and back timber retaining frame 10, lower supporting beam 4 and lower supporting beam retaining frame 11
Between, be attached by support bar 13 between lower supporting leg 5 and lower supporting leg retaining frame 12；The upper supporting leg retaining frame 8, lower supporting leg shield
The free end of frame 12 is hinged on base 14；Sheathed spring 15 on the support bar 13.The support bar 13 is expansion link.Institute
State first hydraulic cylinder 6 and be provided with two, second hydraulic cylinder 7 is provided with three.The first hydraulic cylinder 6, second hydraulic cylinder 7 are
Double acting hydraulic cylinder.Three second hydraulic cylinders 7 are attached by same rotating shaft with lower supporting leg.For ease of displaying in figure, on
Between supporting beam 2 and upper supporting beam retaining frame 9, between back timber 3 and back timber retaining frame 10, lower supporting beam 4 and lower supporting beam retaining frame 11
Support bar is not shown.
Above-described embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect
One step is described in detail, be should be understood that and be the foregoing is only embodiment of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, is equally replaced
Change, improve, should be included within protection domain of the present utility model.
Claims (5)
1. for large-inclination-angle coal bed supporting structure, including be hinged successively upper supporting leg (1), upper supporting beam (2), back timber (3), under
Supporting beam (4), lower supporting leg (5), the upper supporting leg (1) include upper supporting leg main body and upper supporting leg extrusome, lower supporting leg (5) bag
Lower leg body and lower landing leg stretching body are included, first hydraulic cylinder (6), lower supporting leg and top are rotatably connected between upper supporting leg and back timber
Second hydraulic cylinder (7) is rotatably connected between beam, the upper supporting leg (1), the free end of lower supporting leg (5) are respectively provided with sharp head
Portion；Guide rail auxiliary structure is formed between lower leg body and lower landing leg stretching body, the guideway is to limit lower landing leg stretching body
Fixed mobile path, and the diameter parallel of the fixed mobile path and lower leg body；Upper supporting leg main body is stretched with upper supporting leg
Guide rail auxiliary structure is formed between body, fixed mobile path of the guideway to limit upper supporting leg extrusome, and fixation shifting
Dynamic path and the diameter parallel of upper supporting leg main body；Characterized in that, also including：It is arranged on the outside upper supporting leg shield of upper supporting leg (1)
Frame (8), be arranged on the outside upper supporting beam retaining frame (9) of supporting beam (2), be arranged on the outside back timber retaining frame (10) of back timber (3),
It is arranged on the outside lower supporting beam retaining frame (11) of lower supporting beam (4), is arranged on the outside lower supporting leg retaining frame (12) of lower supporting leg (5),
The upper supporting leg retaining frame (8), upper supporting beam retaining frame (9), back timber retaining frame (10), lower supporting beam retaining frame (11), lower supporting leg retaining frame
(12) rotating shaft flexible connection is passed sequentially through, between the upper supporting leg (1) and upper supporting leg retaining frame (8), upper supporting beam (2) and upper supporting
Between beam retaining frame (9), between back timber (3) and back timber retaining frame (10), between lower supporting beam (4) and lower supporting beam retaining frame (11), under
It is fixedly connected between supporting leg (5) and lower supporting leg retaining frame (12) by support bar (13)；The upper supporting leg retaining frame (8), under
The free end of supporting leg retaining frame (12) is hinged on base (14)；Sheathed spring (15) on the support bar (13).
2. according to claim 1 be used for large-inclination-angle coal bed supporting structure, it is characterised in that the support bar (13) is
Expansion link.
3. according to claim 1 be used for large-inclination-angle coal bed supporting structure, it is characterised in that the first hydraulic cylinder
(6) it is provided with N number of, second hydraulic cylinder (7) is provided with M, and wherein M, N are the integer more than or equal to 2.
4. according to claim 1 be used for large-inclination-angle coal bed supporting structure, it is characterised in that the first hydraulic cylinder
(6), second hydraulic cylinder (7) is double acting hydraulic cylinder.
5. according to claim 3 be used for large-inclination-angle coal bed supporting structure, it is characterised in that M second hydraulic cylinder (7)
It is attached by same rotating shaft with lower supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720143745.2U CN206477873U (en) | 2017-02-17 | 2017-02-17 | For large-inclination-angle coal bed supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720143745.2U CN206477873U (en) | 2017-02-17 | 2017-02-17 | For large-inclination-angle coal bed supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206477873U true CN206477873U (en) | 2017-09-08 |
Family
ID=59749330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720143745.2U Expired - Fee Related CN206477873U (en) | 2017-02-17 | 2017-02-17 | For large-inclination-angle coal bed supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206477873U (en) |
-
2017
- 2017-02-17 CN CN201720143745.2U patent/CN206477873U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170908 Termination date: 20180217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |