CN104373147B - Folding extension type roadway hydraulic bracket - Google Patents
Folding extension type roadway hydraulic bracket Download PDFInfo
- Publication number
- CN104373147B CN104373147B CN201410483467.6A CN201410483467A CN104373147B CN 104373147 B CN104373147 B CN 104373147B CN 201410483467 A CN201410483467 A CN 201410483467A CN 104373147 B CN104373147 B CN 104373147B
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- Prior art keywords
- support
- hydraulic
- hinged
- back timber
- column
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- 238000004064 recycling Methods 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 14
- 239000011435 rock Substances 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 11
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002627 tracheal intubation Methods 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 230000018109 developmental process Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 4
- 238000004021 metal welding Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000027648 face development Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 238000003466 welding Methods 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
- E21D23/04—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
-
- 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
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- 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)
- Lining And Supports For Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a folding extension type roadway hydraulic bracket. The bracket comprises a top beam, two angle beams, two side protection plates, two side supports and a base, wherein the two ends of the top beam are respectively hinged to the two angle beams; the other ends of the angle beams are hinged to the side protection plates; the side protection plates are hinged to the side supports; the bottoms of the side supports are spherically hinged to the base; rotating angles between the top beam and the angle beams pass through limit stoppers; wedge blocks for limiting inward rotation of the side protection plates are arranged at the hinged inner sides of the angle beams and the side protection plates; and a skid resisting device is arranged on the base. The shape of the bracket in the support state is accordant with the section of a roadway; when a top plate of the roadway is supported, the active support of two uppers is realized; the connection among all the components of the bracket is hinging; and the assembly, disassembly and transfer of the bracket are to fold and shrink a drop frame of a working bracket perpendicular to the direction of the roadway through an auxiliary bracket assembly/disassembly/transfer device, and the state is kept until a support area supported by the working bracket moves to the front side along the direction of the roadway, so that the front-support back-return recycling is realized.
Description
Technical field
The present invention relates to a kind of laneway temporary support hydraulic support of the safe and efficient rapid construction of underground engineering.
Background technology
Underground engineering comprehensive mechanized driving construction technology, because it is safe and reliable, singly enter efficiency far above traditional big gun pick
Technique, at present by wide popularization and application.How to realize safe and efficient driving, from eighties of last century the fifties so far, both at home and abroad
Mining circle has carried out substantial amounts of exploration, and creates a lot of technology and equipment.Wherein main technology point is related to two aspects, that is,
The safe and reliable gib of Rapid Implementation and the parallel operations of tunneling machine cutting and permanent support.
Gib is to hurt sb.'s feelings for preventing country rock inbreak after tunnel initating from caving in, for ensureing the peace of permanent support operating personnel
Quan Ershe's, for mining depth is shallower and Surrounding Rock Strength is high, excavate after self-supporting is reliable and stable, geological structure is simple etc. is suitable for
Condition, carries out permanent support using mechanical system, when operating personnel does not need to enter empty top zone, can not make gib, directly
Tap into row permanent support；Generally, first gib to be implemented near boring head after roadway excavation, at interim
The lower permanent support implementing tunnel of the protection of shield.
Existing digging laneway temporary support and permanent support is carried out using mechanical system mainly have 6 types：
1st, traditional gib mode has suspension ring to add steel pipe（Or track, shaped steel）Deng by front altering steel pipe（Or track,
Shaped steel）Protect topping material gib top board Deng adding again.
2nd, development machine rack joist shield top mode.
3rd, dig anchoring integral development machine.
4th, front-back pull-push type or paired alternately step type hydraulic pressure automatic shifting stand.
5th, the monorail crane timbering machine that Germany develops.
6th, TBS tunnel construction development machine gib form.
The subject matter that aforesaid way exists：
Need when the 1st, altering before traditional gib artificial lapping, on connect topping material, high labor intensive, the lower operation in empty top is uneasy
Entirely, roof timbering power is not almost had, operating personnel can only be played with limited protective effect, on-site personnel figure often occurs
Save trouble, dislike trouble, not using phenomenon.
2nd, development machine frame joist type gib, still under empty top, supporting area does not reach tunneling boring, machine for lapping operation
Frame intensity and with limited by development machine bonding strength, supporting power very little, implement gib and during permanent support development machine just cannot
Parallel operations.
3rd, dig anchoring integral development machine.It is born from sixties first generation anchor driving machine and carried out so far changing twice, the
Three generations's pick anchoring integral is although achieve pick anchor parallel operations, but anchor pole unsupported back span is big, typically more than 1.2-1.5 rice, supporting
Can not closely follow and meet head on, so, it is only applicable to deep little, ore deposit little, the wall rock condition preferable big cross section rectangle of pressure or trapezoidal tunnel,
Therefore, extensive popularization and application are never obtained.As the overwhelming majority country such as mining area and Germany, Poland of China opens depth relatively
Deep, ore deposit pressure is big, the condition such as country rock soft broken, and anchor pole is intensive, or even also needs to net, cable bolting, and support work amount is big, no
From can not meet requirement, support time is much larger than the cut time it is also difficult to synchronous with cut to only unsupported back span.
4th, front-back pull-push type or paired alternately step type hydraulic pressure automatic shifting stand, each circulation supports one repeatedly to top board
Secondary, destructible top board, it is unfavorable for the supporting to top board, cut it is impossible to realize development machine it is necessary to shut down supporting when roof condition is bad
Cut and permanent support parallel operations.
5th, the monorail crane timbering machine that Germany develops.The mechanized operation of permanent support can be realized, it is to avoid personnel enter no
The operation of supporting area, but this device structure is too complicated, and overall dimensions are big, may be only available for large section roadway construction, supporting and driving
Cut in the same area, mutually dry scratch, affect parallel operations efficiency.
6th, TBM rock ripper has worn-out open type, double shield, single shield etc., and tunnel construction gib form is and entirely breaks
The machine integrated support pattern of face cut driving.This support pattern boring head is to enclosing by shield total length to the supporting of top side
The integrated support of rock, contraction, reach, support again, repeatedly support destructible country rock, the radius of curvature that is only applicable to turn round is big, disconnected greatly
Face, the construction of wall rock condition preferable tunnel, meet tomography, crushed zone is easily stuck.
Content of the invention
For the problems referred to above, the invention discloses one kind can be used for the operation area gib of driving face development machine,
Can be used for the folding telescopic alley hydraulic support of coal wall twice advance support, be capable of gib and development machine
Cut synchronous parallel acts on, and greatly improves drivage efficiency and safety.
The technical solution used in the present invention is as follows:
A kind of folding telescopic alley hydraulic support, including back timber, two cantilevered corner beams, two side guard plates, two collateral supports and
Base, in each hinged cantilevered corner beam in the two ends of described back timber, the described cantilevered corner beam other end is hinged on side guard plate, described side shield
The hinged collateral support of plate, on base, the anglec of rotation between back timber and cantilevered corner beam passes through positive stop to the bottom ball pivot of described collateral support
Make in the range of its rotationally constrained safety angle in supporting construction license, and cantilevered corner beam is provided with restriction side guard plate with the hinged inner side of side guard plate
The opening plus wedge of inside rotation, base carries friction skidding device.
Described folding telescopic alley hydraulic support is consistent with drift section in the shape of holding state, and tunnel is being pushed up
Realize active support to both sides while slab supporting, and the peace of support remove carrying be assist peace to remove Handling device by support will
Working rack fall frame moves towards folding shrinking perpendicular to tunnel, and keeps this state having the supporting area of Working rack supporting along tunnel
Move towards mobile to set up again to front, return after propping up before realizing and recycle.
Described collateral support includes single column and double two kinds of column by its unilateral column quantity；Have or not anti-lateral load by it
Ability includes flexible box-structure and two kinds of forms of column；Include single-telescopic prop and double gentries contracting column by live post quantity in column
Two kinds of forms；Include hydraulic pilot mode according to the control mode of hydraulic vertical prop, single or unilateral column is controlled respectively
System and each column enter back liquid and are connected in parallel on always to enter total time and be controlled two kinds of forms；Column bottom is provided with the ball pivot coupling with base.
There is anti-side to the flexible box-structure with hydraulic jack, interior band hydraulic jack in load-carrying ability collateral support inclusion
Flexible both sides' steel construction and jack three kinds of forms of overcoat round steel stretching structure, so-called overcoat round steel stretching structure refers to overcoat
Round steel one end is fixed as one with jack live post top, and jack cylinder body covers flexible in round steel outside.
When described collateral support is hydraulic prop, it is provided with hydraulic pressure socket thereon, by external hydraulic pressure intubation connection liquid
Pressure system realizes the lifting of hydraulic support.
Described base is arc, has cast steel molding, steel to forge molding or three kinds of forms of welded steel molding, sets thereon
There is the ball pivot with the supporting connection of column, its lower surface is convex concave, stripe-shaped or embedded steel pawl, with prevention and and between roadway floor
Relative sliding.
Described back timber shape, according to drift section country rock occurrence and lithology, has " one " font, " people " font or skene arch
Three kinds of forms of shape.
Top jack is connect with several on described back timber, or on back timber or on back timber and cantilevered corner beam or back timber, cantilevered corner beam
Carry pressure pad or hydraulic die cushion with side plate, contacted with the degree of compaction of roadway surrounding rock with realizing support.
Described back timber be shaped steel or type just with the welding of metal plate material or metal plate material is welded with metal plate material；And in back timber two
End is provided with above and limits the positive stop that cantilevered corner beam outwards rotates.
Described cantilevered corner beam is shaped steel or type is just welded or metal plate material and the welding of metal plate material with metal plate material.
The using method of described folding telescopic alley hydraulic support is as follows：
（1）Development machine completes tunnel full section face cut, completes anchor pole rope net supporting at development machine rear simultaneously；
（2）The hydraulic support that Handling device removes temporary support area afterbody is removed by hydraulic support auxiliary peace, is transported to pick
Enter to meet head on；
（3）Assist peace to remove Handling device by hydraulic support and complete support erection；
（4）Repeat step（1）~（3）.
Beneficial effects of the present invention are as follows：
The shape of the support working condition of the present invention is consistent with drift section, and support is realized to while back supporting
The active support helped to two, the connection between each component of support is hinged, and the peace of support is removed migration and peace can be assisted to remove by support
Working rack is moved towards folding shrinking fall frame perpendicular to tunnel by means of locomotion, and keeps this state to have the supporting of Working rack supporting
Area moves towards mobile along tunnel and sets up to front again, is recycled with returning after before realizing.
Back timber can be set to " one " font, " people " font and circle according to drift section country rock occurrence and lithology by the present invention
Three kinds of forms of arc arch shape；Supported on both sides of the present invention has single column and double two kinds of column by its unilateral column quantity；There is nonreactive by it
Lateral load ability has anti-side to load-carrying ability and two kinds of forms of nonreactive lateral load ability.
It is respectively equipped with hinged with cantilevered corner beam and column on side guard plate, cantilevered corner beam can be decomposed into laterally to the active force of side guard plate
The axial support force of column is become by load and the moment with the hinge axes with column as fulcrum by cantilevered corner beam and side guard board structure
It is the supporting power to tunnel top, side.
Brief description
Fig. 1 present configuration figure；
Fig. 2 positive stop schematic diagram；
Fig. 3 adds the hinged schematic diagram of wedge；
In figure：1 back timber, 2 cantilevered corner beams, 3 bases, 4 collateral supports, 5 side guard plates, 6 antiskid bases, 7 is spacing hinged, 8 limits
Position block, 9 hinged voussoirs, 10 plus wedge hinged, 11 tunnels, 12 backs, 13 roadway floors.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
The present invention is consistent with tunnel 11 section in the shape of holding state, and it is right to realize while to back 12 supporting
Two active supports helped, the connection between each component of support is hinged, and it is to assist peace to remove carrying by support that the peace of support removes carrying
Working rack fall frame is moved towards folding shrinking perpendicular to tunnel by device, and keeps this state in the supporting area having Working rack supporting
Move towards mobile along tunnel 11 to set up again to front, return after propping up before realizing and recycle.
The present invention includes the collateral support 4 of back timber 2, two side guard plates of 1, two cantilevered corner beams 5, two and base 3 forms, back timber 1 with
Cantilevered corner beam 2, cantilevered corner beam 2 are hinged with side guard plate 5, side guard plate 5 and coupling between column, and collateral support 4 and coupling between base 3 are ball
Hinge, cantilevered corner beam 2 and column are articulated with side guard plate, are changed into tunnel top, side are propped up by the axial support force of column by this structure
Shield power, stable for ensureing rack supporting structure, the anglec of rotation between back timber and cantilevered corner beam passes through positive stop 8 makes it rotationally constrained prop up
In the range of the safety angle of support structure license, cantilevered corner beam and the hinged inner side of side guard plate are provided with opening and add wedge and limit side guard plate and inwardly rotate dress
Put, hinged by way of adding wedge and be hinged；Base 3 carries friction skidding device.
It is general Handling device that support auxiliary peace removes Handling device, belongs to prior art.
Back timber 1 can be set to " one " font, " people " font and circle according to drift section country rock occurrence and lithology by the present invention
Three kinds of forms of arc arch shape；
Two collateral supports 4 have single column and double two kinds of column by its unilateral column quantity；Have or not anti-lateral load energy by it
Power has anti-side to load-carrying ability and two kinds of forms of nonreactive lateral load ability；By live post quantity in column have single-telescopic prop and
Two kinds of forms of double-telescopic upright post；According to the control mode useful hydraulic pilot mode to hydraulic vertical prop, to single or unilateral column
It is respectively controlled and enter back liquid with each column and be connected in parallel on always to enter total returning and be controlled two kinds of forms；Column bottom is provided with and base 3
The ball pivot of connection.
There is anti-side to the flexible box-structure with hydraulic jack, interior band hydraulic jack in load-carrying ability collateral support inclusion
Flexible both sides' steel construction and jack three kinds of forms of overcoat round steel stretching structure, so-called overcoat round steel stretching structure refers to overcoat
Round steel one end is fixed as one with jack live post top, and jack cylinder body covers flexible in round steel outside.
The stress advantage of the present invention is embodied in：Hinged, cantilevered corner beam 2 offside with cantilevered corner beam 2 and column is respectively equipped with side guard plate 5
The active force of backplate 5 and with the hinged moment as fulcrum with column, the axial support force of column is changed into tunnel top, side
Supporting power.
The collateral support 4 of the present invention is hydraulic vertical prop, is provided with hydraulic pressure socket, connects hydraulic system by external hydraulic pressure intubation real
The lifting of existing hydraulic support；
The base 3 of the present invention is arc, has cast steel molding, steel to forge molding and three kinds of forms of welded steel molding, its
It is provided with the ball pivot with the supporting connection of column, its lower surface is convex concave or stripe-shaped, or embedded steel pawl, to stop and tunnel bottom
Relative sliding between plate.
Back timber 1 two ends are provided with spacing hinged 7, and back timber is shaped steel or type is just welded or metal plate material and metal plate material with metal plate material
Welding；It is provided with above back timber two ends and limit the positive stop that cantilevered corner beam outwards rotates.
Cantilevered corner beam 2 two ends be provided with hinged, cantilevered corner beam 2 be shaped steel or type just with the welding of metal plate material or metal plate material and the welding of metal plate material
's；Cantilevered corner beam 2 and back timber 1 hinged place are provided with the positive stop limiting it and outwards rotating against, and cantilevered corner beam 2 is hinged with side guard plate 5 plus wedge
10, hinged inner side is provided with hinged voussoir 9 and can limit the opening that side guard plate inwardly rotates.
Support is provided with hydraulic pressure socket, connects, by external hydraulic pressure intubation, the lifting that hydraulic system realizes hydraulic support.
Base 3 is arc, has cast steel molding, steel to forge molding and three kinds of forms of welded steel molding, which is provided with
The ball pivot of the supporting connection of column, its lower surface is convex concave or stripe-shaped, or embedded steel pawl, to stop and between roadway floor 13
Relative sliding.
Folding telescopic alley hydraulic support, its operation principle and be using step：
（1）Development machine completes tunnel full section face cut, completes anchor pole rope net supporting at development machine rear simultaneously；
（2）The hydraulic support that Handling device removes temporary support area afterbody is removed by hydraulic support auxiliary peace, is transported to pick
Enter to meet head on；
（3）Assist peace to remove Handling device by hydraulic support and complete support erection；
（4）Repeat step（1）~（3）.
Claims (9)
1. a kind of folding telescopic alley hydraulic support it is characterised in that：Including back timber, two cantilevered corner beams, two side guard plates, two
Collateral support and base, in each hinged cantilevered corner beam in the two ends of described back timber, the described cantilevered corner beam other end is hinged on side guard plate,
The hinged collateral support of described side guard plate, the bottom ball pivot of described collateral support on base, pass through by the anglec of rotation between back timber and cantilevered corner beam
Positive stop makes in the range of its rotationally constrained safety angle in supporting construction license, and cantilevered corner beam is provided with limit with the hinged inner side of side guard plate
The voussoir that side guard plate processed inwardly rotates, base carries friction skidding device；
Described folding telescopic alley hydraulic support is consistent with drift section in the shape of holding state, and back is being propped up
Realize, while shield, the active support helped to two, and the peace of support to remove carrying be to assist peace to remove Handling device by work by support
Support fall frame moves towards folding shrinking perpendicular to tunnel, and keeps this state to move towards along tunnel in the supporting area having Working rack supporting
Move and set up again to front, after propping up before realizing, return recycling.
2. folding telescopic alley hydraulic support as claimed in claim 1 it is characterised in that：It is unilateral that described collateral support presses it
Column quantity includes single column and double two kinds of column；Have or not anti-side by it and include anti-side to load-carrying ability and nothing to load-carrying ability
Anti-side is to two kinds of forms of load-carrying ability；Include single-telescopic prop and double gentries two kinds of forms of contracting column by live post quantity in column；Press
Include hydraulic pilot mode according to the control mode of hydraulic vertical prop, single or unilateral column is respectively controlled to enter with each column
Return liquid and be connected in parallel on always to enter total returning and be controlled two kinds of forms；Collateral support bottom is provided with the ball pivot coupling with base.
3. folding telescopic alley hydraulic support as claimed in claim 2 it is characterised in that：There is anti-side collateral to load-carrying ability
Flexible box-structure with hydraulic jack, interior flexible both sides' steel construction with hydraulic jack and jack overcoat in support inclusion
Three kinds of forms of round steel stretching structure, so-called jack overcoat round steel stretching structure refers to overcoat round steel one end and jack live post top
End is fixed as one, and jack cylinder body covers flexible in round steel outside.
4. folding telescopic alley hydraulic support as claimed in claim 3 it is characterised in that：When described collateral support is hydraulic pressure
During pillar, it is provided with hydraulic pressure socket thereon, the lifting that hydraulic system realizes hydraulic support is connected by external hydraulic pressure intubation.
5. folding telescopic alley hydraulic support as claimed in claim 1 it is characterised in that：Described base is arc, has
Cast steel molding, steel forge molding or three kinds of forms of welded steel molding, which is provided with and the collateral ball pivot supportting supporting connection, its
Lower surface is convex concave, stripe-shaped or embedded steel pawl, with the Relative sliding between prevention and roadway floor.
6. folding telescopic alley hydraulic support as claimed in claim 1 it is characterised in that：The shape of described back timber according to
Drift section country rock occurrence and lithology, including " one " font, " people " font or three kinds of forms of circular arc arch.
7. folding telescopic alley hydraulic support as claimed in claim 1 it is characterised in that：Carry some on described back timber
Individual connect top jack, or carry pressure pad or hydraulic die cushion on back timber or on back timber and cantilevered corner beam or on back timber, cantilevered corner beam and side guard plate,
Contacted with the degree of compaction of roadway surrounding rock with realizing support.
8. folding telescopic alley hydraulic support as claimed in claim 1 it is characterised in that：Described back timber be shaped steel or
It is type just and metal plate material welds or metal plate material is welded with metal plate material；And be provided with restriction cantilevered corner beam on back timber two ends and outwards rotate
Positive stop.
9. folding telescopic alley hydraulic support as claimed in claim 1 it is characterised in that：Described cantilevered corner beam be shaped steel or
It is type just and metal plate material welds or metal plate material is welded with metal plate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483467.6A CN104373147B (en) | 2014-09-19 | 2014-09-19 | Folding extension type roadway hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483467.6A CN104373147B (en) | 2014-09-19 | 2014-09-19 | Folding extension type roadway hydraulic bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373147A CN104373147A (en) | 2015-02-25 |
| CN104373147B true CN104373147B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410483467.6A Expired - Fee Related CN104373147B (en) | 2014-09-19 | 2014-09-19 | Folding extension type roadway hydraulic bracket |
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| Country | Link |
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| CN (1) | CN104373147B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114108B (en) * | 2015-08-19 | 2018-01-02 | 遵义庄氏矿井支护技术开发有限公司 | Short column contractibility canopy formula support |
| CN107965342A (en) * | 2017-12-27 | 2018-04-27 | 中国煤炭科工集团太原研究院有限公司 | Arched tunnel driving moves into covering device certainly without support repeatedly |
| CN108708753A (en) * | 2018-05-31 | 2018-10-26 | 烟台智本知识产权运营管理有限公司 | A kind of gold mine tunnel special hydraulic support |
| CN112302698B (en) * | 2020-10-28 | 2022-08-12 | 贵州理工学院 | Folding hydraulic tunnel supporting device convenient to carry |
| CN116291655B (en) * | 2023-05-22 | 2023-08-04 | 山西中煤东坡煤业有限公司 | Coal mine roadway supporting equipment |
| CN116753008B (en) * | 2023-08-11 | 2023-10-27 | 北京科技大学 | Large-section roadway flexible supporting equipment |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2431740B2 (en) * | 1974-07-02 | 1981-04-02 | Johannes 4300 Essen Winkler | Shield support for underground mining |
| GB2093515B (en) * | 1981-02-24 | 1984-12-05 | Dobson Park Ind | Improvements in or relating to mine roof supports |
| CN100404789C (en) * | 2004-12-06 | 2008-07-23 | 煤炭科学研究总院太原分院 | Suspending movable hydraulic support rack for advanced support in coal cutting roadway |
| CN201321861Y (en) * | 2008-12-29 | 2009-10-07 | 攀枝花煤业（集团）有限责任公司 | Flexible shield support |
| CN103643979B (en) * | 2013-07-15 | 2017-02-08 | 郑东风 | Hydraulic support used for roadway temporary support and erecting and use method of hydraulic support |
| CN103643980B (en) * | 2013-12-27 | 2016-04-20 | 重庆天巨承机械制造有限责任公司 | A kind of high-dipping medium-thickness seam shield support |
| CN204113319U (en) * | 2014-09-19 | 2015-01-21 | 郑东风 | A kind of folding telescopic alley hydraulic support |
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2014
- 2014-09-19 CN CN201410483467.6A patent/CN104373147B/en not_active Expired - Fee Related
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| CN104373147A (en) | 2015-02-25 |
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