CN104675422B - The hydraulic means of coal mine roadway temporary support for drivage face - Google Patents
The hydraulic means of coal mine roadway temporary support for drivage face Download PDFInfo
- Publication number
- CN104675422B CN104675422B CN201410824786.9A CN201410824786A CN104675422B CN 104675422 B CN104675422 B CN 104675422B CN 201410824786 A CN201410824786 A CN 201410824786A CN 104675422 B CN104675422 B CN 104675422B
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- Prior art keywords
- hydraulic
- jack
- support
- falsework
- head
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- Expired - Fee Related
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- 239000003245 coal Substances 0.000 title description 10
- 239000011435 rock Substances 0.000 claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 210000003141 lower extremity Anatomy 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000005422 blasting Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- 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
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of hydraulic means for roadway head gib, including Combined hydraulic support, classification telescopic jack, falsework of meeting head on, afterbody falsework；4 groups of hydraulic supports that Combined hydraulic support is made up of back timber, lifting jack, movable jack respectively, 4 classification telescopic jack are installed on the back timber top of Combined hydraulic support, afterbody falsework supporting scope is as roadway support working space, meeting head on the falsework working space as muck, rock drilling and once supporting, Combined hydraulic support realizes moving integrally of tunnelling temporary support system；Falsework is made up of back timber and two hydraulic jack, and falsework back timber is fixed on each classification telescopic jack, and two hydraulic jack are freely dangled as support canopy lower limb, uses pin joint between back timber and hydraulic jack；This patent avoids the top operation of roadway construction sky, it is achieved that country rock immediate support, tunnelling and supporting parallel operations.
Description
Technical field
The present invention relates to a kind of hydraulic means for roadway head gib.
Background technology
Coal mine roadway tunneling construction mainly uses drilling and blasting method and comprehensive mechanization method two kinds, current coal mine roadway driving face
Gib majority uses the advanced gib of metal forestope, and forestope uses and is not less than 2.5 not less than 15kg track or diameter
Very little steel pipe manufacturing, length is not less than 5 meters；Suspension ring, the intensity of hanging beam device to match with the intensity of forestope；The anchor of upper lift ring
Bar must leave enough screw threads, to ensure the firm of suspension ring；Forestope cannot be greater than 0.3m to the end face distance met head on, and with
Construction moves forward in time.The problem that this gib exists has personnel to enter empty top zone operation, and labor intensity is big, safety
The shortcomings such as difference.
Patent (CN 102865089A) discloses a kind of advanced falsework of all-hydraulic automatic moving type and using method thereof, by hydraulic pressure
Bracket support principle introduces the gib of roadway head, but has the disadvantage that the falsework base of 1. this invention
8 affect mechanical rake muck stone, generally use mechanical rake dress fractured rock, and the falsework base of this invention would interfere with muck machinery
Scraper bowl or the operation of cake bucket；2. roadway head working space is narrow and small, is not suitable for using the hydraulic support of this type,
The equipment of roadway head has rock drill, dirt loader, elevating conveyor, and mine car or belt conveyor etc. form production line, pick
Enter working space and have rock drill and dirt loader, the falsework of this invention will affect dirt loader work, cause working space more simultaneously
Add narrow and small.
Patent (CN 103397888A) discloses a kind of frame mounting for the lifting migration of boring head falsework and operation
Method, this patent uses hydraulic pressure from shifting system, realizes the movable carrier trolley of falsework and realize falsework lifting
Support lifting aid system, but have the disadvantage that the head end of 1. this patent does not has supporting, head section to back
Supporting to back needs manually installed back timber；2. head section can not be near driving face crag, owing to digging in tunnel
Enter work surface pile up have a large amount of fractured rock to be unfavorable for the carrier trolley of this patent is near driving face crag.
For the deficiency overcoming current coal mine roadway temporary support for drivage face technique and existing patent to exist, ensure tunnel simultaneously
Safe and efficient and the mechanization of temporary support for drivage face, it is interim that patent applicant proposes a kind of coal mine roadway driving face
The hydraulic means of supporting.
Summary of the invention
In order to overcome the deficiency existing for existing roadway head gib and existing patented technology, the invention reside in offer
The hydraulic means of a kind of coal mine roadway temporary support for drivage face, solves roadway head gib and realizes safe and efficient
Mechanization.
For achieving the above object, the technical scheme is that
The hydraulic means of coal mine roadway temporary support for drivage face, including Combined hydraulic support, the scalable hydraulic jack of classification,
Meet head on falsework and afterbody falsework composition；
Combined hydraulic support is made up of four hydraulic supports, and each hydraulic support is respectively by back timber, lifting jack, movable
Jack forms, and the first two hydraulic support is one group, and 2 classification telescopic jack are installed on its back timber top；Latter two hydraulic pressure props up
Frame is one group, and 2 classification telescopic jack are installed on its back timber top, and classification telescopic jack realizes meeting head on and afterbody falsework
Flexible, afterbody falsework supporting scope is as roadway support working space, and falsework of meeting head on is as muck, rock drilling and one
The working space of secondary supporting；
Two groups of Combined hydraulic supports realize tunnelling temporary support system device by jack for moving before and after between sectional shelf-unit
Move integrally；
Meeting head on and afterbody falsework is made up of back timber and two hydraulic jack, falsework back timber is fixed on each classification and stretches
Jack；Two hydraulic jack are freely dangled as support canopy lower limb, use pin joint between back timber and hydraulic jack.
The Advantageous Effects of the present invention is: can realize the immediate support of rock drilling working space, and after broken rock, classification of meeting head on is stretched
Jack forward extends out, and falsework hydraulic jack (falsework canopy lower limb) extends downwardly from, and sets up falsework of meeting head on；Face
Time the moving integrally of support, two groups of Combined hydraulic supports realize tunnelling by jack for moving before and after between sectional shelf-unit and face
Time the moving integrally of support system device, alleviate the labor intensity of workman；Permanent support and driving parallel operations, reduce two works
Interfering between sequence, improves drivage efficiency；The hydraulic means of roadway head gib is along lane side and arranges,
Improve enough working spaces can to muck equipment, rock drilling equipment and transporter；Improve driving rock drilling and the safety of supporting, gram
Take empty top shop problem, safe and reliable.
Accompanying drawing explanation
Schematic diagram after the hydraulic means afterbody falsework contraction of Fig. 1 gib
Fig. 2 gib hydraulic means meet head on falsework shrink after schematic diagram
The hydraulic means of Fig. 3 gib is met head on and schematic diagram stretched out by afterbody falsework
The hydraulic means of Fig. 4 gib is met head on and afterbody falsework shrinks schematic top plan view
The hydraulic means of Fig. 5 gib is met head on and afterbody falsework is stretched out and fully-mechanized digging machine relation schematic side view
The hydraulic means of Fig. 6 gib is met head on and afterbody falsework is stretched out and fully-mechanized digging machine relation schematic top plan view
The hydraulic means of Fig. 7 gib is met head on and afterbody falsework is stretched out and scraper loader relation schematic side view
Fig. 8 meets head on and afterbody falsework schematic diagram
Fig. 9 afterbody classification telescopic jack schematic diagram
Figure 10 meets head on classification telescopic jack schematic diagram
In figure: the 2-afterbody falsework 3-Combined hydraulic support 4-afterbody classification telescopic jack 5-hydraulic pressure group of 1-tunnel
Close support 6-top to move forward and backward jack 7-Combined hydraulic support 8-Combined hydraulic support 9-classification of meeting head on and stretch thousand
10-falsework 11-bottom of meeting head on, jin top moves forward and backward jack 12-clapboard 13-fully-mechanized digging machine 14-scraper loader
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
The hydraulic means of roadway head gib, by Combined hydraulic support (3,5,7,8), classification telescopic jack
(4,9), falsework of meeting head on (10), afterbody falsework (2) forms；Combined hydraulic support (3,5,7,8) is respectively
4 groups of hydraulic supports are formed by back timber, lifting jack, movable jack；Combined hydraulic support (3,5,7,8) is real
Moving integrally of existing tunnelling temporary support system；4 are installed on the back timber top of Combined hydraulic support (3,5,7,8)
Classification telescopic jack (4,9), it is achieved falsework of meeting head on (10) and afterbody falsework (2) flexible, afterbody is interim
Support (2) supporting scope is as roadway support working space, and falsework of meeting head on (10) is as muck, rock drilling and once supporting
Working space；Falsework (2,10) is made up of back timber (2-1) and two hydraulic jack (2-3), falsework top
Beam (2-1) is fixed on each classification telescopic jack (4,9), and two hydraulic jack (2-3) are freely dangled as support canopy
Lower limb, uses pin joint between back timber (2-1) and hydraulic jack (2-3).
(1) drill eye blasting sends out construction tunnel operating procedure
Step one: during drilling and blasting method digging laneway (1), tunnel (1) is first tunneled forward 20-30m enough spaces
System and device and the muck equipment of temporary support for drivage face are installed；
Step 2: the transport of dirt loader, conveyance and transporting equipment is put in place, and installation and debugging guarantee normally to work；
Step 3: by hydraulic support (3,5,7,8) assembly and accessory, classification telescopic jack (4,9), meet head on interim
Driving face position transported to by frame (10) assembly and accessory, afterbody falsework (2) assembly and accessory, hydraulic pump and control station；
Step 4: assemble hydraulic support (3,5,7,8), with movable jack (6-1,6-2,6-3,11-1,11-2,
11-3) four hydraulic supports (3,5,7,8) are joined together to form entirety, wherein with lateral clapboard (12)
Hydraulic support (8), near driving face, checks Combined hydraulic support (3,5,7,8) and dirt loader (13,14), turns
Whether the safety clearance between fortune machine, transporting equipment etc. meets " safety regulations in coal mine " requirement；
Step 5: the back timber at Combined hydraulic support (3,5,7,8) installs classification telescopic jack (4,9), near meeting head on
3 grades of telescopic jack (9) of the installation in direction, install 6 grades of telescopic jack (4) at afterbody；
Step 6: the different telescopic sections in classification telescopic jack (4,9) install the back timber (2-1) of falsework, and with inserting
Pin rigid bar (2-1), back timber (2-1) bottom of falsework installs two hydraulic jack (2-3), back timber (2-1) and
Pin joint is used between hydraulic jack (2-3)；
Step 7: risen by Combined hydraulic support (3,5,7,8), supports tunnel (1) top board, falsework of meeting head on (10)
It is in overhang with afterbody falsework (2), before explosion, the pendency jack of falsework (10) is stretched out and support to base plate,
Make falsework (10) have certain support force, prevent explosion from collapsing falsework (10)；
Step 8: driving face breaks after rock terminates, and the pendency jack of falsework (10) shrinks (2-3), classification of meeting head on
Telescopic jack (9) is stretched over forward distance crag 20cm, two hydraulic jacks of falsework of meeting head on (10) bottom pendency
Top (2-3) is stretched out, and tunnel (1) top board is formed gib, can realize clear under falsework of meeting head on (10) is protected
The operations such as reason Pumex, muck, rock drilling and once supporting；
Step 9: the broken rock of second time terminates, rear two hydraulic supports (3,5) support tunnel (1) top board as supporting stress point,
The pendency hydraulic jack (2-3) of falsework (10) is shunk, and front two hydraulic supports (7,8) are reduced, and classification of meeting head on is stretched
Contracting jack (9) and falsework of meeting head on (10) all reduce, rear two Combined hydraulic supports (3,5) with jack between frame (6-1,
6-2,6-3,11-1,11-2,11-3) two Combined hydraulic supports (7,8) are mobile before pushing tow；Front two Combined hydraulic supports
(7,8) rise, and support tunnel (1) top board, are formed and support stress point, and rear two Combined hydraulic supports (3,5) are reduced,
Rear two Combined hydraulic supports (3,5) are dragged, subsequently with jack (6-1,6-2,6-3,11-1,11-2,11-3) between frame
Two Combined hydraulic supports (3,5) after rise；
Step 10: after two Combined hydraulic supports (3,5) move into place after when, afterbody classification telescopic jack (4) trails,
Afterbody falsework (2) pendency hydraulic jack (2-3) stretches out, and tunnel (1) top board is formed gib, faces at afterbody
Time support (2) protection under realize secondary supporting；
Step 11: when entering next one circulation, repeats step 8 to ten.
(2) comprehensive mechanization method digging laneway operating procedure
Step one: during comprehensive mechanization method digging laneway (1), initially with drilling and blasting method construction tunnel forward (1) 40-50m,
There to be system and device and the comprehensive mechanized development machine (13) of enough space mounting temporary support for drivage faces；
Step 2: comprehensive mechanized development machine (13), elevating conveyor, belt haulage are put in place, and installation and debugging guarantee
Normal work；
Step 3: by hydraulic support (3,5,7,8) assembly and accessory, classification telescopic jack (4,9), meet head on interim
Driving face position transported to by frame (10) assembly and accessory, afterbody falsework (2) assembly and accessory, hydraulic pump and control station；
Step 4: assemble hydraulic support (3,5,7,8), with movable jack (6-1,6-2,6-3,11-1,11-2,
11-3) four hydraulic supports (3,5,7,8) are joined together to form entirety, wherein with the hydraulic pressure of clapboard (12)
Support (8) near driving face, check Combined hydraulic support (3,5,7,8) and comprehensive mechanized development machine (13),
Whether the safety clearance between conveyance, transporting equipment etc. meets " safety regulations in coal mine " requirement；
Step 5: the back timber at Combined hydraulic support (3,5,7,8) installs classification telescopic jack (4,9), near meeting head on
3 grades of telescopic jack (9) of the installation in direction, install 6 grades of telescopic jack (4) at afterbody；
Step 6: the different telescopic sections in classification telescopic jack (4,9) install the back timber (2-1) of falsework, and with inserting
Pin rigid bar (2-1), back timber (2-1) bottom of falsework installs two hydraulic jack (2-3), back timber (2-1) and
Pin joint is used between hydraulic jack (2-3)；
Step 7: risen by Combined hydraulic support (3,5,7,8), supports tunnel (1) top board, falsework of meeting head on (10)
It is in overhang with afterbody falsework (2)；
Step 8: comprehensive mechanized development machine (13) cuts head and breaks rock, classification telescopic jack of meeting head on (9), be stretched over forward away from
From crag 20cm, two hydraulic jack (2-3) of falsework of meeting head on (10) bottom pendency are stretched out, and push up tunnel (1)
Plate forms gib, can realize muck, rock drilling and once supporting under falsework of meeting head on (10) is protected；
Step 9: moving integrally of the hydraulic means of roadway head gib, rear two hydraulic supports (3,5)
Support tunnel (1) top board is as supporting stress point, and the pendency hydraulic jack (2-3) of falsework of meeting head on (10) is shunk, front
Two hydraulic supports (7,8) are reduced, and classification telescopic jack of meeting head on (9) and falsework (10) all reduce, rear two liquid
Two hydraulic pressure groups before jack (6-1,6-2,6-3,11-1,11-2,11-3) pushing tow between pressure sectional shelf-unit (3,5) use frame
Close support (7,8) mobile；Front two Combined hydraulic supports (7,8) are risen, and support tunnel (1) top board, form support and are subject to
Force, rear two Combined hydraulic supports (3,5) are reduced, with jack (6-1,6-2,6-3,11-1,11-2,11-3) between frame
Drag rear two Combined hydraulic supports (3,5), two Combined hydraulic supports (3,5) after rising subsequently；
Step 10: after Combined hydraulic support (3,5) moves into place, afterbody classification telescopic jack (4) trails, afterbody
Falsework (2) pendency hydraulic jack (2-3) stretches out, and tunnel (1) top board is formed gib, props up at afterbody temporarily
Secondary supporting is realized under frame (2) protection；
Step 11: when entering next one circulation, repeats step 8 to ten.
The above, the only detailed description of the invention of the present invention, but the protection domain of invention is not limited thereto, and any is familiar with basis
The engineers and technicians of technical field, in the technical scope of the present invention, can do some conversion, such as rack form, hydraulic support
Compound mode, the lifting of Combined hydraulic support and move mode and supporting structure etc., all should be as the protection model invading the present invention
Enclose.Therefore protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. the hydraulic means of roadway head gib, by Combined hydraulic support, classification telescopic jack, meets head on interim
Support, afterbody falsework forms, it is characterised in that:
1. Combined hydraulic support is made up of 4 hydraulic supports, and the most each hydraulic support is respectively by back timber, lifting jack, front
Rear jack for moving is constituted；
2. the first two hydraulic support is one group, and latter two hydraulic support is one group, and two groups of Combined hydraulic supports realize tunnelling and face
Time the moving integrally of support system；
3. 4 classification telescopic jack are installed, the back timber top peace of the first two hydraulic support on the back timber top of Combined hydraulic support
Fill 2 classification telescopic jack；2 classification telescopic jack are installed on the back timber top of latter two hydraulic support, it is achieved meet head on and
Stretching of afterbody falsework, afterbody falsework supporting scope is as roadway support working space, and falsework of meeting head on is as dress
The working space of rock, rock drilling and once supporting；
4. falsework is made up of back timber and two hydraulic jack, and falsework back timber is fixed on each classification telescopic jack
On column, two hydraulic jack are freely dangled as support canopy lower limb, use pin joint between back timber and hydraulic jack.
The operational approach of the hydraulic means of roadway head gib the most according to claim 1, it is characterised in that:
Step one: hydraulic support assembly and accessory, classification telescopic jack, meet head on falsework assembly and accessory, afterbody are faced
Time carriage assembly and accessory, hydraulic pump and control station transport to driving face position；
Step 2: assemble hydraulic support, with movable jack, four hydraulic supports are joined together to form entirety, wherein
With the hydraulic support of clapboard near driving face；
Step 3: the back timber at Combined hydraulic support installs classification telescopic jack, the installation 3 grades near direction of meeting head on flexible thousand
Jin top, installs 6 grades of telescopic jack at afterbody；
Step 4: the different telescopic sections in classification telescopic jack install the back timber of falsework, and use latch rigid bar, face
Time support back timber bottom install two hydraulic jack as support canopy lower limb, between back timber and hydraulic jack use pin joint；
Step 5: risen by Combined hydraulic support, supports back, meets head on and the falsework of afterbody is in overhang；
Step 6: driving face breaks after rock terminates, classification telescopic jack of meeting head on is stretched over forward distance crag 20cm, meets
Two hydraulic jack of head falsework bottom pendency are stretched out, and back is formed gib, can meet head on interim
Muck, rock drilling and once supporting is realized under frame protection；
Step 7: the broken rock of second time terminates, rear two Combined hydraulic supports support back, as supporting stress point, props up temporarily
The pendency hydraulic jack of frame is shunk, and front two hydraulic supports reduce, and classification telescopic jack of meeting head on and falsework all reduce,
Rear two Combined hydraulic supports move to specific bit with two Combined hydraulic supports before jack pushing tow between two pack supports and postpone, front
Two Combined hydraulic supports rise, and support back, are formed and support stress point, and rear two Combined hydraulic supports reduce, with two
Between pack support, jack drags rear two Combined hydraulic supports, two Combined hydraulic supports after rising subsequently；
Step 8: after Combined hydraulic support moves into place, afterbody classification telescopic jack trails, and afterbody falsework dangles
Hydraulic jack is stretched out, and back is formed gib, realizes secondary supporting under afterbody falsework is protected, and tunnel is enclosed
After rock secondary supporting terminates, pack up afterbody falsework；
Step 9: when entering next one circulation, repeats step 6 to eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824786.9A CN104675422B (en) | 2014-12-26 | 2014-12-26 | The hydraulic means of coal mine roadway temporary support for drivage face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410824786.9A CN104675422B (en) | 2014-12-26 | 2014-12-26 | The hydraulic means of coal mine roadway temporary support for drivage face |
Publications (2)
| Publication Number | Publication Date |
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| CN104675422A CN104675422A (en) | 2015-06-03 |
| CN104675422B true CN104675422B (en) | 2016-08-24 |
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| CN201410824786.9A Expired - Fee Related CN104675422B (en) | 2014-12-26 | 2014-12-26 | The hydraulic means of coal mine roadway temporary support for drivage face |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105065048A (en) * | 2015-08-23 | 2015-11-18 | 河南理工大学 | Temporary support for driving working face under coal mine |
| CN105370308B (en) * | 2015-09-24 | 2018-03-09 | 北京天地玛珂电液控制***有限公司 | Along lane hydraulic support stand system of leaving blank |
| CN107191208B (en) * | 2017-06-26 | 2019-04-30 | 永城煤电控股集团有限公司 | Rigid protection body Support Method in the lane flexible support Ti Yu by gob side entry retaining lane |
| CN107651559B (en) * | 2017-11-06 | 2023-05-02 | 山东建筑大学 | Hydraulic stepping type hanging beam equipment |
| CN110130389B (en) * | 2019-05-24 | 2021-07-13 | 国网山东省电力公司建设公司 | Adjustable GIS equipment foundation concrete winter construction heat preservation shed and adjusting method |
| CN110219689A (en) * | 2019-06-13 | 2019-09-10 | 霍州煤电集团河津腾晖煤业有限责任公司 | A kind of underground driving face provisional protection bracket and its construction method |
| CN110130964A (en) * | 2019-06-13 | 2019-08-16 | 霍州煤电集团河津腾晖煤业有限责任公司 | A kind of temporary supporting device of driving working face and construction method |
| CN110159333B (en) * | 2019-06-13 | 2021-05-14 | 河南理工大学 | Comprehensive mechanized tunneling quick advance support unit and use method thereof |
| CN112922648B (en) * | 2021-04-07 | 2021-11-09 | 中国矿业大学 | Rail mounted hydraulic pressure sectional shelf-unit |
| CN113882888B (en) * | 2021-11-01 | 2024-04-19 | 安徽理工大学 | Double-door type efficient and rapid circulation self-moving anchor supporting integrated equipment and control method |
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|---|---|---|---|---|
| GB999943A (en) * | 1960-11-29 | 1965-07-28 | Dobson Ltd W E & F | Improved mine roof support means |
| GB966034A (en) * | 1961-10-02 | 1964-08-06 | Dowty Mining Equipment Ltd | Advanceable roof support suitable for use in mines |
| CN102383815B (en) * | 2011-07-22 | 2013-11-27 | 安徽理工大学 | Suspension type driftage temporary supporting device and use method thereof |
| CN102865089B (en) * | 2012-10-10 | 2015-07-15 | 新汶矿业集团有限责任公司翟镇煤矿 | Full-hydraulic self-moving type advancing temporary support and using method thereof |
| CN203362197U (en) * | 2013-05-20 | 2013-12-25 | 郭洪飞 | Excavation face hydraulic support parallel operation device |
| CN103382844B (en) * | 2013-07-15 | 2015-09-30 | 郑东风 | A kind of tracked hydraulic sectional shelf-unit temporary lining and permanent support parallel operations piercing technique and equipment |
| CN103397888B (en) * | 2013-08-21 | 2015-07-01 | 郑东风 | Frame device for lifting and transporting tunneling head-on temporary bracket, and operation method |
| CN104047627A (en) * | 2014-07-15 | 2014-09-17 | 沈阳天安矿山机械股份有限公司 | Mining roadway frame style advanced support bracket |
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- 2014-12-26 CN CN201410824786.9A patent/CN104675422B/en not_active Expired - Fee Related
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