CN106351679A - Soil similar coal working face fully sealed shield support device - Google Patents
Soil similar coal working face fully sealed shield support device Download PDFInfo
- Publication number
- CN106351679A CN106351679A CN201610986898.3A CN201610986898A CN106351679A CN 106351679 A CN106351679 A CN 106351679A CN 201610986898 A CN201610986898 A CN 201610986898A CN 106351679 A CN106351679 A CN 106351679A
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- China
- Prior art keywords
- shield
- jack
- hinged
- base
- extensible canopy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000003245 coal Substances 0.000 title claims abstract description 42
- 239000002689 soil Substances 0.000 title claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 229910052799 carbon Inorganic materials 0.000 claims description 30
- 239000000835 fiber Substances 0.000 claims description 29
- 230000008093 supporting effect Effects 0.000 claims description 14
- 238000007665 sagging Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 230000010339 dilation Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 4
- 239000004917 carbon fiber Substances 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008673 vomiting Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0013—Frame type supports
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a soil similar coal working face fully sealed shield support device, which comprises a plurality of shield support systems in parallel arrangement, wherein each shield support system comprises a hydraulic support frame and a carbon fiber net; the hydraulic support frame comprises a top beam, an upper protecting plate, a telescopic beam, a shield beam, four upright posts, a front connecting rod, a back connecting rod, a base and a push moving device; the bottom ends of the four upright posts are arranged on the base through hinging; the back part of the top beam is hinged to the shield beam; the shield beams, the front connecting rod, the back connecting rod and the base are mutually hinged to form a four-connecting-rod mechanism; the top beam is of an integral structure; the telescopic beam is hinged in a front end body of the top beam through two telescopic beam jacks; the maximum telescopic quantity is 800mm; the stroke of the telescopic beam jacks is greater than the coal cutting pace; the upper protecting plate is hinged to the front end of the telescopic beam; the carbon fiber net is laid above the hydraulic support frame; the back parts of the shield beams are also covered by the carbon fiber net. The soil similar coal working face fully sealed shield support device solves the problems that the puking and wall caving of the soil similar coal working face are serious; the safety of workers cannot be ensured.
Description
Technical field
The present invention relates to coal mine machinery technical field, particularly to a species soil property coal work surface totally-enclosed shield support dress
Put.
Background technology
Hydraulic support, as a kind of support apparatus, has a wide range of applications in process of coal mining.Deep with Coal Exploitation
Be continuously increased, the preventing and treating for complex geological condition pole weak seam work surface wall caving and roof fall it should fully analyze work
Face engineering geological condition and Mining technology condition, using the interaction relationship of support and country rock, select suitable work surface liquid
Pressure support and the bracket support system that matches are carrying out preventing and controlling.
As a kind of innovation concept of new proposition, representative is a kind of broken loose to class soil property coal, and physical property is like soil
The coal and rock of non-soil, such as Huainan Xinzhuangzi Coal Mine 66207 work surface is exactly typical class soil property coal work surface, and top board is more broken,
Easily roof fall and fall top, the immediate bottom of work surface is mud stone, coal, and base plate lithology is soft, coal wall caving seriously, conventional hydraulic pressure
Bracket support is not matched due to design, and supporting effect is simultaneously bad, and workman works in such work surface, cannot ensure safely.
Conventional chemical consolidation rib and the method for top board, not only high cost, and to environmental danger, it is unfavorable for workman
Healthy.
Content of the invention
For solving above-mentioned technical problem, it is an object of the present invention to provide a species soil property coal work surface totally-enclosed shield support dress
Put, to solve class soil property coal work surface roof fall, wall caving seriously, the problem that safety of workers cannot be guaranteed.
The technical solution used in the present invention is:
The totally-enclosed shield support device of one species soil property coal work surface, including some shield support systems being arranged in parallel,
Described shield support system includes hydraulic support and carbon fibre web, and described hydraulic support is standing shield hydraulic support, described
Hydraulic support includes back timber, face guard, extensible canopy, caving shield, four root posts, front rod, back link, base and push unit,
The bottom of four described columns pass through hinged be arranged on described base, the upper end phase of the rear portion of described back timber and described caving shield
Hinged；Described caving shield, described front rod, described back link and described base mutually hinged composition quadric chain, described top
Beam is overall structure, is hinged with described extensible canopy by two extensible canopy jack in the body of described back timber front end, described flexible
Beam maximal dilation amount is 800mm, and described extensible canopy jack stroke is more than coal cutting step pitch；It is hinged with shield in described extensible canopy front end
Side board；
The top of described hydraulic support is equipped with described carbon fibre web, and the rear portion of described caving shield is also adopted by described carbon fiber
Net covers, and is located at the side wall laying of the described carbon fibre web at described caving shield rear portion along spoil, and the one of described carbon fibre web
End is fixed on the bottom of described spoil, and the other end of described carbon fibre web is sagging from the front end of described face guard, and using described
The sagging part of carbon fibre web is withstood on the work surface of rib by extensible canopy and described face guard, and described back timber is provided with cunning
Wheel, two described columns near described rib are provided with hand winch, and one end of steel wire rope is fixed on described hand winch,
The other end is fixed on one end of sagging described carbon fibre web through described pulley；
Described face guard includes one-level face guard and secondary protecting side plate, and described one-level face guard length is 800mm, and described two
Level face guard length is 400～700mm, and it is hinged that described one-level face guard and described extensible canopy pass through two wall supporting jack；Institute
State secondary protecting side plate to be hinged with described one-level face guard by two wall supporting jack two.
The totally-enclosed shield support device of class soil property coal work surface of the present invention, wherein, described carbon fibre web is rhombus
Carbon fibre web.
The totally-enclosed shield support device of class soil property coal work surface of the present invention, wherein, described back timber is by four cage bars
The variable cross-section entirety box-structure that plate, some horizontal bars and upper and lower cover plate group are welded into；Article four, it is welded with four in main ribs plate folder sky
Individual needling, described four needlings are hinged with the spherical stigma of four described column tops；It is provided with four in the middle part of described back timber casing
Sleeve, in described sleeve, installation spring, guide rod, side push away jack and bearing pin, and described sleeve and side guard plate pass through described bearing pin even
Connect；Described back timber front portion is provided with the connection cylinder base of hinged anti-down jack, and the width of described side guard plate is hydraulic pressure described in adjacent two
The half of set spacing.
The totally-enclosed shield support device of class soil property coal work surface of the present invention, wherein, described base is monoblock type bottom
Seat, four cage bars form the two column installing spaces in left and right, middle by the big gap bridge in front end, rear portion box-structure about two
Divide and be connected, the front end of described base is respectively provided on two sides with the anti-slip equipment of adjustable angle.
The totally-enclosed shield support device of class soil property coal work surface of the present invention, wherein, described front rod and described after
The version of connecting rod be designed as split type, be steel plate welding box-structure.
The totally-enclosed shield support device of class soil property coal work surface of the present invention, wherein, described extensible canopy is interior to stretch formula
Extensible canopy, is mainly made up of top board, web and stud.
The totally-enclosed shield support device of class soil property coal work surface described in any one of the present invention, wherein, described hydraulic pressure props up
The control of the hydraulic system of frame adopts interlocked control, near the lift seat thousand all with described base for two described columns of described rib
The interlocked control on jin top；The interlocked control of the tune base jack of the advancing jack of described push unit and described base；Institute
State the interlocked control of advancing jack and described extensible canopy jack；Described advancing jack pushes away jack with the described side of back timber
Interlocked control.
The method have the advantages that
1. extensible canopy jack stroke is more than coal cutting step pitch (routine is that extensible canopy jack stroke is equal to coal cutting step pitch), energy
In time with the up-to-date exposed fresh rib out of high-stress state supporting；Face guard is with one-level face guard with secondary protecting side plate
Use, the traditional wall supporting board size of ratio increases, and support force improves, the easy piece of class soil property coal work surface, emit, leak, therefore face guard
Size increases, the stroke of hydraulic support increases, than section deep larger, the immediate support rib of coal-winning machine.
2. the side guard plate lateral dimensions of back timber increases, and side guard plate width is the half of two hydraulic support spacing, class soil property work
Make face due to roof cracking, therefore the side guard plate size between adjacent hydraulic support increase, and accomplishes tight between adjacent hydraulic support,
Breaking roof caved gangue is avoided to dissolve in work surface.
3. carbon fibre web is routed to above whole excavation, the broken spoil of isolation, has isolated work space of planes and outside
Dangerous matter sources, have accomplished essential safety.
The present invention solves class soil property coal work surface roof fall, wall caving seriously, the problem that safety of workers cannot be guaranteed.
Brief description
Fig. 1 is the overall structure diagram of shield support device of the present invention；
Fig. 2 is the structural representation of the back timber of hydraulic support of the present invention；
Fig. 3 is the structural representation of extensible canopy of the present invention and face guard.
With reference to specific embodiments and the drawings, the invention will be further described.
Specific embodiment
Embodiment 1
As Figure 1-3, the totally-enclosed shield support device of a species soil property coal work surface, including some be arranged in parallel cover
Shield mounting system, described shield support system includes hydraulic support 1 and carbon fibre web 2, and carbon fibre web 2 is rhombus carbon fibre web,
Hydraulic support 1 be standing shield hydraulic support, hydraulic support 1 include back timber 11, face guard 12, extensible canopy 13, caving shield 14,
Four root posts 15, front rod 16, back link 17, base 18 and push unit 19, hinged being arranged on is passed through in the bottom of four root posts 5
On base 18, the rear portion of back timber 11 is hinged with the upper end of caving shield 14；Caving shield 14 lower end and front rod 16 and back link 17
Upper end hinged, the lower end of front rod 16 and back link 17 is hinged with the rear portion of base 18, caving shield 14, front rod 16, after
Connecting rod 17 and the mutually hinged composition quadric chain of base 18, back timber 11 is overall structure, passes through two in back timber 11 front end body
Individual extensible canopy jack 131 is hinged with extensible canopy 13；Extensible canopy 13 stretches formula extensible canopy, mainly by top board, web and stud for interior
Composition, intensity is higher, controls it to stretch by two extensible canopy jack 131, extensible canopy 13 maximal dilation amount is 800mm, stretches
Contracting beam jack 131 stroke be more than coal cutting step pitch, coal-winning machine cut deep for 600mm；It is hinged with face guard 12 in extensible canopy 13 front end,
The version of front rod 16 and back link 17 be designed as split type, be steel plate welding box-structure；
The top of hydraulic support 1 is equipped with carbon fibre web 2, and the rear portion of caving shield 14 is also adopted by carbon fibre web 2 and covers, and
Along the side wall laying of spoil 4, one end of carbon fibre web 2 is fixed on the bottom of spoil 4 to carbon fibre web 2 positioned at caving shield 14 rear portion
Portion, the other end of carbon fibre web 2 is sagging from the front end of face guard 12, and using extensible canopy 13 and face guard 12 by carbon fibre web 2
Sagging part withstand on the work surface of rib 3, back timber 11 is provided with pulley (not shown), near two of rib 3
Column 15 is provided with hand winch 5, and one end of steel wire rope 6 is fixed on hand winch 5, and the other end is fixed on through described pulley
One end of sagging carbon fibre web 2；
Back timber 11 is welded into by four main gussets 113, some horizontal bars and upper and lower cover plate group, variable cross-section entirety box knot
Structure；Article four, main gusset 113 presss from both sides and is welded with four needlings 111 in sky, the spherical post on described four needlings 111 and four root post 15 top
Hinged；Be provided with four sleeves 112 in the middle part of back timber 11 casing, spring is installed in described sleeve 112, guide rod, side push away jack and
Bearing pin, sleeve 112 is connected by described bearing pin with side guard plate 114；Back timber 11 front portion is provided with the connection of hinged anti-down jack 115
Cylinder base 116, the width of side guard plate 114 is the half of hydraulic support spacing described in adjacent two；
Face guard 12 includes one-level face guard 121 and secondary protecting side plate 122, and one-level face guard 121 length is 1100mm, and two
Level face guard 122 length is 700mm, and one-level face guard 121 is hinged by two wall supporting jack 1 with extensible canopy 13,
Wall supporting jack 1Realize pendulum and withdrawal work on one-level face guard 121 by two wall supporting jack 1
Make；Secondary protecting side plate 122 is hinged with one-level face guard 121 by two wall supporting jack 2 123, wall supporting jack 2 123
'sRealize pendulum and withdrawal action on secondary protecting side plate 122 by two wall supporting jack 2 123；
Base 18 is Integral pedestal, and four cage bars form the two column installing spaces in left and right, and front end serious offense is passed through in centre
About bridge, rear portion box-structure handle, two parts are connected, and the front end of base 18 is respectively provided on two sides with the anti-back skating of adjustable angle
Device, for connecting with adjacent pans 18, to prevent slipping of hydraulic support 1.
The control of the hydraulic system of hydraulic support 1 adopts interlocked control, near rib 3 two columns 15 all with base 18
The lift interlocked control of seat jack, the interlocking control adjusting base jack of the advancing jack of push unit 19 and base 18
The described side of the interlocked control, described advancing jack and back timber 11 of system, described advancing jack and extensible canopy jack 131 pushes away
The interlocked control of jack.
Embodiment 2
The totally-enclosed shield support device of one species soil property coal work surface, except one-level face guard 121 length is 800mm, two grades
Face guard 122 length is the other the same as in Example 1 outside 400mm.
The totally-enclosed shield support device of class soil property coal work surface of the present invention, in use, coal-winning machine works
Before, extensible canopy 13 is extended at rib, opens face guard 12 and withstand rib 3；During coal-winning machine work, withdraw face guard 12 and stretch
Beam 13, mobile hydraulic support 1, open extensible canopy 13 and face guard 12, and open front rod 16 and back link 17, reduce beam-ends
Away from, abundant supporting roof, exploited.
Embodiment described above is only that the preferred embodiment of the present invention is described, the not model to the present invention
Enclose and be defined, on the premise of without departing from design spirit of the present invention, the technical side to the present invention for the those of ordinary skill in the art
Various modifications and improvement that case is made, all should fall in the protection domain of claims of the present invention determination.
Claims (7)
1. the totally-enclosed shield support device of a species soil property coal work surface it is characterised in that: include some shielding being arranged in parallel
Mounting system, described shield support system includes hydraulic support (1) and carbon fibre web (2), and described hydraulic support (1) is covered for support
Shield formula hydraulic support, described hydraulic support (1) include back timber (11), face guard (12), extensible canopy (13), caving shield (14), four
Root post (15), front rod (16), back link (17), base (18) and push unit (19), the bottom of four described columns (5)
It is arranged on described base (18) by hinged, the rear portion of described back timber (11) and the upper end of described caving shield (14) are hinged；
Described caving shield (14), described front rod (16), described back link (17) and the mutually hinged composition double leval jib of described base (18)
Mechanism, described back timber (11) is overall structure, passes through two extensible canopy jack (131) hinges in the body of described back timber (11) front end
It is connected to described extensible canopy (13), described extensible canopy (13) maximal dilation amount is 800mm, described extensible canopy jack (131) stroke
More than coal cutting step pitch；It is hinged with face guard (12) in described extensible canopy (13) front end；
The top of described hydraulic support (1) is equipped with described carbon fibre web (2), and the rear portion of described caving shield (14) is also adopted by described
Carbon fibre web (2) covers, and is located at the side wall paving of the described carbon fibre web (2) at described caving shield (14) rear portion along spoil (4)
If one end of described carbon fibre web (2) is fixed on the bottom of described spoil (4), and the other end of described carbon fibre web (2) is from described
The front end of face guard (12) is sagging, and using described extensible canopy (13) and described face guard (12), carbon fibre web (2) is sagging
Part withstand on the work surface of rib (3), described back timber (11) is provided with pulley, near described in two of described rib (3)
Column (15) is provided with hand winch (5), and one end of steel wire rope (6) is fixed on described hand winch (5), and the other end passes through institute
State one end that pulley is fixed on sagging described carbon fibre web (2)；
Described face guard (12) includes one-level face guard (121) and secondary protecting side plate (122), and described one-level face guard (121) is long
Degree 1100mm, described secondary protecting side plate (122) length 700mm, described one-level face guard (121) and described extensible canopy (13) pass through
Two wall supporting jack one (132) are hinged；Described secondary protecting side plate (122) passes through two wall supporting jack two (123) and institute
State one-level face guard (121) to be hinged.
2. the totally-enclosed shield support device of class soil property coal work surface according to claim 1 it is characterised in that: described carbon is fine
Dimension net (2) is rhombus carbon fibre web.
3. the totally-enclosed shield support device of class soil property coal work surface according to claim 1 it is characterised in that: described back timber
(11) the variable cross-section entirety box-structure being welded into by four main gussets (113), some horizontal bars and upper and lower cover plate group；Article four, institute
State in main gusset (113) folder sky and be welded with four needlings (111), described four needlings (111) and four described column (15) tops
Spherical stigma hinged；It is provided with four sleeves (112) in the middle part of described back timber (11) casing, described sleeve (112) interior installation spring,
Guide rod, side push away jack and bearing pin, and described sleeve (112) is connected by described bearing pin with side guard plate (114)；Described back timber (11)
Front portion is provided with the connection cylinder base (116) of hinged anti-down jack (115), and the width of described side guard plate (114) is described in adjacent two
The half of hydraulic support (1) spacing.
4. the totally-enclosed shield support device of class soil property coal work surface according to claim 1 it is characterised in that: described base
(18) it is Integral pedestal, four cage bars form the two column installing spaces in left and right, and the big gap bridge in front end, rear portion box are passed through in centre
About structure handle, two parts are connected, and the front end of described base (18) is respectively provided on two sides with the anti-slip equipment of adjustable angle.
5. the totally-enclosed shield support device of class soil property coal work surface according to claim 1 it is characterised in that: connect before described
The version of bar (16) and described back link (17) be designed as split type, be steel plate welding box-structure.
6. the totally-enclosed shield support device of class soil property coal work surface according to claim 1 it is characterised in that: described flexible
Beam (13) stretches formula extensible canopy for interior, is mainly made up of top board, web and stud.
7. the totally-enclosed shield support device of class soil property coal work surface according to claim 1-6 any one, its feature exists
In: the control of the hydraulic system of described hydraulic support (1) adopts interlocked control, near two described columns of described rib (3)
(15) interlocked control all with the lift seat jack of described base (18)；The advancing jack of described push unit (19) with described
The interlocked control of the tune base jack of base (18)；Described advancing jack and the interlocking of described extensible canopy jack (131)
Control；The described side of described advancing jack and back timber (11) pushes away the interlocked control of jack.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986898.3A CN106351679A (en) | 2016-11-09 | 2016-11-09 | Soil similar coal working face fully sealed shield support device |
| PCT/CN2017/084523 WO2018086328A1 (en) | 2016-11-09 | 2017-05-16 | Shield support device fully enclosing soil-like coal working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610986898.3A CN106351679A (en) | 2016-11-09 | 2016-11-09 | Soil similar coal working face fully sealed shield support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106351679A true CN106351679A (en) | 2017-01-25 |
Family
ID=57861627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610986898.3A Pending CN106351679A (en) | 2016-11-09 | 2016-11-09 | Soil similar coal working face fully sealed shield support device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106351679A (en) |
| WO (1) | WO2018086328A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018086328A1 (en) * | 2016-11-09 | 2018-05-17 | 安徽理工大学 | Shield support device fully enclosing soil-like coal working face |
| CN113605945A (en) * | 2021-09-01 | 2021-11-05 | 中煤盘江重工有限公司 | Side guard plate of telescopic beam of hydraulic support |
| CN116291655A (en) * | 2023-05-22 | 2023-06-23 | 山西中煤东坡煤业有限公司 | Coal mine roadway supporting equipment |
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| CN108756963B (en) * | 2018-07-02 | 2024-01-12 | 新疆龟兹矿业有限公司 | Installation device of hydraulic support and working method thereof |
| CN109854288B (en) * | 2019-03-21 | 2024-09-24 | 山东矿机华能装备制造有限公司 | Gangue blocking device |
| CN111779521B (en) * | 2020-07-10 | 2024-08-02 | 宁波精壹机械制造有限公司 | Hydraulic support for steeply inclined roadway and use method |
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| CN113605972A (en) * | 2021-08-31 | 2021-11-05 | 鄂托克前旗长城六号矿业有限公司 | Intelligent plugging equipment for short-wall dense filling mining working face and implementation method thereof |
| CN113586106B (en) * | 2021-09-03 | 2022-07-01 | 安徽理工大学 | Non-frame spacing fully mechanized caving hydraulic support for preventing top leakage of inclined loose thick coal seam |
| CN113669097A (en) * | 2021-09-10 | 2021-11-19 | 辽宁工程技术大学 | Movable mining and tunneling arch-shaped flexible shield support for coal mine |
| CN113944493B (en) * | 2021-10-09 | 2024-09-03 | 晋能控股装备制造集团金鼎山西煤机有限责任公司 | Method for transporting two-frame one-group special end bracket |
| CN114215571A (en) * | 2021-10-21 | 2022-03-22 | 三一重型装备有限公司 | Hydraulic support and coal mining equipment |
| CN118187984B (en) * | 2024-05-15 | 2024-08-27 | 三一重型装备有限公司 | Shield beam of hydraulic support and hydraulic support |
| CN118601648A (en) * | 2024-08-08 | 2024-09-06 | 三一重型装备有限公司 | Single-row hydraulic support |
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| CN113605945A (en) * | 2021-09-01 | 2021-11-05 | 中煤盘江重工有限公司 | Side guard plate of telescopic beam of hydraulic support |
| CN116291655A (en) * | 2023-05-22 | 2023-06-23 | 山西中煤东坡煤业有限公司 | Coal mine roadway supporting equipment |
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| WO2018086328A1 (en) | 2018-05-17 |
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