CN102748055A - Circulation advancing type forepoling support - Google Patents
Circulation advancing type forepoling support Download PDFInfo
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- CN102748055A CN102748055A CN2012102488909A CN201210248890A CN102748055A CN 102748055 A CN102748055 A CN 102748055A CN 2012102488909 A CN2012102488909 A CN 2012102488909A CN 201210248890 A CN201210248890 A CN 201210248890A CN 102748055 A CN102748055 A CN 102748055A
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- 230000004087 circulation Effects 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000011218 segmentation Effects 0.000 claims description 17
- 230000003028 elevating effect Effects 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 6
- 230000032258 transport Effects 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 12
- 239000003245 coal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Abstract
A circulation advancing type forepoling support solves the problems that in the prior art, a timbering structure moves troublesomely, efficiency is low, and the like. The circulation advancing type forepoling support comprises top beams, bases, hydraulic upright columns and multistage inserting connecting rod type guiding mechanisms, and the hydraulic upright columns are hinged between the top beams and the bases. The technical scheme includes that the integral top beam with a hoisting mechanism and the integral base form a hoisting support, and each split top beam and the corresponding split base which are parallel form a forepoling support; an extending end of a telescopic cantilever beam at the front of the integral top beam and the split top beam jointly support transverse steel beams, and a monorail hoist for conveying the forepoling supports moves along sectional guide rails which are arranged at the bottoms of the transverse crossbeams and connected with each other; and an extending end of a support moving hydraulic cylinder on the integral base is connected with the split bases through connectors. The circulation advancing type forepoling support is compact in structure, reasonable in design, stable in timbering and moving, simple and convenient to operate and safe and reliable in use, required safe passing space in a tunnel can be guaranteed, and mechanical forepoling for continuously supporting a roof of the tunnel is realized.
Description
Technical field
The present invention relates to a kind of advanced stand device that is used for the safety work of mining stope; Particularly a kind of when being used for operate as normal face mining operations; In tunnel, work plane two ends, carry out the advance support in tunnel, and can be with the propelling of working face mining mobile circulation protrusive advance support rack.Belong to mining machinery manufacturing and application.
Background technology
In the stope of coal mines operation of fully-mechanized mining,, in 20 meters scopes of ahead work face, must add strong supporting in modern times according to the regulation of the corresponding rules of country.At present; In some corresponding patent documentations, disclose this type of advanced stand device, " a kind of coal mine down-hole splited articulated look ahead supporting support ", the notification number that mainly contains patent publication No. and be CN101182780A is that " the lame advanced supporting rack group of inclined roof panels " and the inventor of " coal mine work area crossheading forepoling hydraulic support ", the CN201190570Y of " coal mine fully-mechanized mining return aircourse combined type advance support rack ", the CN200952403Y of " the coal mine fully-mechanized mining haulage drift saddle ride type advance support rack " of CN2828315Y, CN2833112Y is CN200985799Y " lame advanced supporting rack " etc. at the patent announcement of first to file number.The inventor once arranges a gang of mechanization in tunnel to being difficult to of existing of above-mentioned patent to interior the elevating conveyor of haulage gate (machine lane), and oneself moves the supporting problem; Design a kind of patent announcement number " tunnel ahead support stent " for CN201386567Y; Though it can adopt the push-and-pull that moves the frame hydraulic cylinder to realize moving of support; Meet the requirement of the equipment mounting, commissioning and maintenance condition of fully-mechanized mining working to a certain extent; Can guarantee needed safe walkway in the machine lane; But when the distance of lame advanced supporting section need reach 20 meters or when above, because the increasing of the quantity of the support of installing, the weak point of this plug-type move mode of advance support rack has just displayed.And notification number be CN201193201Y's " rail advance support rack transportation lift truck equipment ", publication number is " hoisting stand for mining " of CN101463728A, in practical application, can not satisfy the long purpose that moves apart from advance support rack.And publication number be CN101864975A's " after-frame become before posture continuous supporting advance timbering and move the frame method "; Then be adopt two supports each other fulcrum move frame in the middle part of drift section; Rely on drawing of the place ahead, tunnel to move a little, the after-frame group is moved to the mode of the front portion of side arm group.This kind moving manner too theorizes, and can be very not smooth under the most situation of the base plate in tunnel, in the ground moving process of long distance; The track of walking is difficult to guarantee; Phenomenons such as support tilt and holding can often appear, speed and effect that influence moves frame, the propelling that the face that dallies over one's work is mined; Existence can not adapt to on-the-spot actual use needs, the problem that is difficult to accomplish the end in view.Existing dependence moves the advance support rack structure that the push-and-pull of frame hydraulic cylinder is moved; Lame advanced supporting for longer distance lacks applicability, and advancing velocity is slower, complex operation; Especially at every turn moving frame all needs all advance support racks are all moved one time, and operating efficiency is low.Therefore, existing advance support rack is unfavorable for the supporting and the management of top board, influences the safe high-yield and high-efficiency production of working face mining operation.
Summary of the invention
The purpose of this invention is to provide a kind of circulation protrusive advance support rack, solved prior art the long supporting that exists apart from advance support in tunnel is moved problems such as frame complex operation, efficient are low, its compact conformation; Reasonable in design; Supporting is stablized with moving, and is simple to operation, safe and reliable; In guaranteeing the tunnel, in the required safe pedestrian space, realize the mechanization advance support that back is supported continuously.
The technical scheme that the present invention adopted is: this circulation protrusive advance support rack comprise back timber, base and be hinged on back timber and base between the elevating mechanism of forming by hydraulic vertical prop and multistage grafting link-type guiding mechanism; Its technical essential is: said back timber is arranged to monolithic back timber and split type back timber; Base is arranged to monolithic base and split type base; And form hoisting bracket by the monolithic back timber that has derricking gear and monolithic base and elevating mechanism, constitute one group of advance timbering by two split type back timbers arranged side by side and two split type bases and elevating mechanism; The anterior hinged telescopic cantilever beam of monolithic back timber through the swing arm Driven by Hydraulic Cylinder; Utilize the external part of the telescopic cantilever beam that the cantilever telescopic hydraulic cylinder drives and the horizontal girder steel of split type back timber together support of advance timbering; At each horizontal steel beam bottom interconnective segmentation guide rail is set respectively, the road wheel that transports the overhead trolley of advance timbering moves along interconnective segmentation rail length direction; The external part that moves the frame hydraulic cylinder hinged on the monolithic base is connected with split type base through connector; The advance timbering of no connector moves through derricking gear and the overhead trolley on the interconnective segmentation guide rail that is arranged on the monolithic back timber on the split type base.
The derricking gear that is arranged on the monolithic back timber of said hoisting bracket mainly comprises the telescoping mechanism that has suspension hook that is driven by the rotating mechanism that rotates Driven by Hydraulic Cylinder, oscillating motor and telescopic hydraulic cylinder; The rotating mechanism that is assembled on the monolithic back timber is hinged through oscillating motor and telescoping mechanism, is assembled in the hook lifting of the hook lifting hydraulic cylinder of telescoping mechanism rear end through drag cable assembly control telescoping mechanism front end.
The said hoisting bracket of two symmetric arrangement is assembled in the front and back ends of lame advanced supporting section respectively; Two erect to hang between the support at least three group advance timberings are set; Wherein the split type base of two groups of advance timberings respectively through connector be assembled in the external part that moves the frame hydraulic cylinder hinged on the monolithic base of lame advanced supporting section front and back ends and link together, all the other are respectively organized on the split type base of advance timbering does not have connector.
Said multistage grafting link-type guiding mechanism is made up of guide rod casing, secondary fairlead and said monolithic base or split type base; The middle part of the top of guide rod casing and said monolithic back timber or split type back timber is hinged, and insert in the secondary fairlead bottom, and inserts together in said monolithic base or the split type base with the secondary fairlead.
Advantage and good effect that the present invention has are: because that the present invention adopts the hoisting bracket be made up of the monolithic back timber that has derricking gear and monolithic base and elevating mechanism and constitutes one group advance timbering by two split type back timbers arranged side by side and two split type bases and elevating mechanism is reasonably combined, the circulation protrusive that carries out advance support rack moves frame; And the monolithic base is realized moving of hoisting bracket through moving frame hydraulic cylinder and the split type base that is connected with connector; It then is to realize through the derricking gear that is provided with on the monolithic back timber and with the overhead trolley that is provided with on the segmentation guide rail that laterally girder steel links to each other that the circulation of advance timbering is advanced; So its compact conformation is reasonable in design, supporting is stablized with moving; Simple to operation, safe and reliable.
In addition owing to adopt multistage grafting link-type guiding mechanism to replace traditional quadric chain; With the lifting structure of hydraulic vertical prop composition hoisting bracket or advance timbering, make that the advance timbering length of designing is shorter, volume is less; Weight is lighter; Being convenient to realizes circulating advance in the operation process lifting and move, meet the equipment mounting, commissioning and maintenance condition of fully-mechanized mining working, can adapt to the tunnel condition of down-hole actual mining faciostenosis.Therefore, the invention solves the supporting means that prior art exists falls behind, lacks applicability, moves problems such as frame is loaded down with trivial details, efficient is low for the lame advanced supporting of longer distance.In guaranteeing the tunnel in the required safe pedestrian space, can realize mechanization advance support that back is supported continuously according to different geological conditionss and drift section shape, guarantee the safe high-yield and high-efficiency production of work plane.
Description of drawings
Fig. 1 is a kind of concrete structure sketch map of the present invention;
Fig. 2 is the sectional view of Fig. 1 along the A-A line;
Fig. 3 is the sectional view of Fig. 1 along the B-B line;
Fig. 4 is the structure for amplifying sketch map of the derricking gear among Fig. 1;
Fig. 5 is the upward view of Fig. 4.
Sequence number explanation among the figure: 1 monolithic back timber; 2 derricking gears; 3 swing arm hydraulic cylinders; 4 telescopic cantilever beams; 5 cantilever telescopic hydraulic cylinders; 6 overhead trolleys; 7 split type back timbers; 8 horizontal girder steels; 9 segmentation guide rails; 10 hydraulic vertical props; 11 connectors; 12 split type bases; 13 secondary fairleads; 14 guide rod casings; 15 move the frame hydraulic cylinder; 16 monolithic bases; 17 rotate hydraulic cylinder; 18 rotating mechanisms; 19 oscillating motors; 20 telescopic hydraulic cylinders; 21 telescoping mechanisms; 22 suspension hooks; 23 drag cable assemblies; 24 hook lifting hydraulic cylinders.
The specific embodiment
Specify concrete structure of the present invention according to Fig. 1～5.This circulation protrusive advance support rack comprises back timber, base, be hinged on elevating mechanism, hoisting bracket and the advance timbering be made up of hydraulic vertical prop 10 and multistage grafting link-type guiding mechanism between back timber and the base.The advance timbering length of designing is short, volume is little in order to make, in light weight; Be convenient to circulate in the process of advancing lifting and move; Adopt multistage grafting link-type guiding mechanism to substitute traditional quadric chain, form the elevating mechanism of hoisting bracket or the elevating mechanism of advance timbering with hydraulic vertical prop.The applicant that wherein multistage grafting link-type guiding mechanism adopts technology maturation is the basic structure of patent (notification number be CN201982127U's " multistage grafting link-type filling hydraulic support ") formerly, promptly is made up of guide rod casing 14, secondary fairlead 13 and parts such as monolithic base 16 or split type base 12; The middle part of the top of guide rod casing 14 and monolithic back timber 1 or split type back timber 7 is hinged, and insert in the secondary fairlead 13 bottom, and inserts together in monolithic base 16 or the split type base 12 with secondary fairlead 13.
Back timber in the present embodiment is arranged to monolithic back timber 1 and split type back timber 7, and base is arranged to monolithic base 16 and split type base 12, and forms hoisting bracket by the monolithic back timber that has derricking gear 21 and monolithic base 16 and elevating mechanism.Constitute one group of advance timbering by two split type back timbers 7 arranged side by side and two split type bases 12 and elevating mechanism.The hoisting bracket of two symmetric arrangement is assembled in the front and back ends of lame advanced supporting section respectively, and two erect to hang between the support at least three group advance timberings are set.Wherein the split type base 12 of two groups of advance timberings respectively through connector 11 be assembled in the external part that moves frame hydraulic cylinder 15 hinged on the monolithic base 16 of lame advanced supporting section front and back ends and link together, all the other respectively organize no connector 11 on the split type base 12 of advance timbering.
The anterior hinged telescopic cantilever beam 4 that drives through swing arm hydraulic cylinder 3 of monolithic back timber 1 utilizes the external part of the telescopic cantilever beam 4 that cantilever telescopic hydraulic cylinder 5 drives and a plurality of horizontal girder steels 8 of split type back timber 7 together support of advance timbering.In each horizontal girder steel 8 bottom segmentation guide rail 9 is set respectively.Be movably connected each other through coupling assembling (not shown) commonly used between each segmentation guide rail 9 so that quick connection therebetween with separate.The road wheel that transports the common overhead trolley 6 of advance timbering moves along the length direction of interconnective segmentation guide rail 9.The external part that moves frame hydraulic cylinder 15 that is hinged on the monolithic base 16 is connected with split type base 12 through connector 11.The advance timbering of no connector 11 moves with overhead trolley 6 on the interconnective segmentation guide rail 9 through the derricking gear 2 that is arranged on the monolithic back timber 1 on the split type base 12.In order to guarantee to advance in the circulation rapidly and efficiently of the long interior realization advance timbering of advance support distance, advance timbering can be connected on the overhead trolley 6 effectively, on the monolithic back timber 1 of hoisting bracket, derricking gear 2 is set.Monolithic base 16 is realized moving of hoisting bracket through moving frame hydraulic cylinder 15 and the split type base 12 that is connected with connector 11; It then is to realize through the derricking gear 2 of setting on the monolithic back timber 1 and with the overhead trolley 6 that is provided with on the segmentation guide rail 9 that laterally girder steel 8 links to each other that the circulation of advance timbering is advanced.
The derricking gear 2 that is arranged on the monolithic back timber 1 of hoisting bracket mainly comprises: by rotating the telescoping mechanism that has suspension hook 22 21 that rotating mechanism 18, oscillating motor 19 and telescopic hydraulic cylinder 20 that hydraulic cylinder 17 drives drive.Realize the rotation of whole derricking gear 2 through rotating hydraulic cylinder 17.The rotating mechanism 18 that is assembled on the monolithic back timber 1 is hinged through oscillating motor 19 and telescoping mechanism 21, and telescoping mechanism 21 is realized upper and lower swing and forward and backward flexible under the drive of oscillating motor 19 and telescopic hydraulic cylinder 20.Be assembled in of suspension hook 22 up-downs of the hook lifting hydraulic cylinder 24 of telescoping mechanism 21 rear ends through drag cable assembly 23 control telescoping mechanisms 21 front ends.
During this circulation protrusive advance support rack operation; Hoisting bracket is arranged in the forward and backward two ends of lame advanced supporting section; And some groups of two advance timberings that are arranged in juxtaposition are set between hoisting bracket carry out supporting the tunnel; The acquiescence original state is that hydraulic vertical prop 10 rises, and supports hoisting bracket and advance timbering respectively.Swing arm hydraulic cylinder 3, cantilever telescopic hydraulic cylinder 5, move frame hydraulic cylinder 15, rotate hydraulic cylinder 17, oscillating motor 19 is for stretching out state, telescopic hydraulic cylinder 20, hook lifting hydraulic cylinder 24 all are in retracted state.Adjustment hydraulic vertical prop 10 makes monolithic back timber 1, monolithic base 16 and split type back timber 7, split type base 12 connect reality with top, tunnel, base plate, prepares to carry out the advance support operation in tunnel with working face extraction.
When moving frame, the hydraulic vertical prop 10 of the elevating mechanism of the advance timbering that the rear portion is arranged in juxtaposition near stope one end is regained, and makes the split type back timber 7 of advance timbering fall frame.At this moment telescopic cantilever beam 4 external parts that are arranged in the hoisting bracket at rear portion are still supporting the horizontal girder steel 8 that top is connected with segmentation guide rail 9; Make the rotating mechanism 18 that is installed on the monolithic back timber 1 around rotational through rotating hydraulic cylinder 17, turn to above the advance timbering that institute will move thereby drive whole derricking gear 2; Adjustment oscillating motor 19, telescopic hydraulic cylinder 20 and hook lifting hydraulic cylinder 24 flexible with the sling advance timbering of no connector 11 of the suspension hooks 22 of derricking gear 2 front portions, and transferred to the advance timbering of slinging on the overhead trolley 6; Overhead trolley 6 drives advance timberings and moves to the front portion of lame advanced supporting section along segmentation guide rail 9, with the derricking gear of anterior hoisting bracket 2 advance timbering is moved to the relevant position again.Move another advance timbering that the rear portion is arranged in juxtaposition in the same way.
After one group of advance timbering arranged side by side moves into place, rise the hydraulic vertical prop 10 of the elevating mechanism of advance timbering, support back, and support horizontal girder steel 8 simultaneously.The hydraulic vertical prop 10 of the hoisting bracket at rear portion is regained, unloaded segmentation guide rail 9 and horizontal girder steel 8 that telescopic cantilever beam 4 supports, and be connected to the front portion of whole piece segmentation guide rail 9; After withdrawal moves frame hydraulic cylinder 15 and makes a step pitch of hoisting bracket reach at rear portion, rise hydraulic vertical prop 10, make hoisting bracket support top board and horizontal girder steel 8; Connector 11 is unloaded, stretch out and move frame hydraulic cylinder 15, and will move frame hydraulic cylinder 15 usefulness connectors 11 and be connected on the split type base 12 of the one group of advance timbering that is arranged in juxtaposition in front.
For the reach of the hoisting bracket of front portion, then be to unload lower union joint 11, regain and move frame hydraulic cylinder 15; To move on the split type base 12 of advance timbering that frame hydraulic cylinder 15 is connected to just that group that puts in place from the rear portion reach with connector 11; Regain the hydraulic vertical prop 10 of anterior hoisting bracket, and stretch out and move frame hydraulic cylinder 15, after step pitch of passing hoisting bracket reach; Rise hydraulic vertical prop 10, make hoisting bracket support top board and horizontal girder steel 8.Repeat above-mentioned will be positioned at the advance timbering that the rear portion is arranged in juxtaposition fall frame, sling, along steps such as guide rail move, the mode that the advance timbering at rear portion is advanced with circulation moves to the front portion, reaches the purpose that all advance support racks circulations move forward.
Claims (4)
1. circulation protrusive advance support rack; Comprise back timber, base and be hinged on back timber and base between the elevating mechanism of forming by hydraulic vertical prop and multistage grafting link-type guiding mechanism; It is characterized in that: said back timber is arranged to monolithic back timber and split type back timber; Base is arranged to monolithic base and split type base; And form hoisting bracket by monolithic back timber that has derricking gear and monolithic base, form one group of advance timbering by two split type back timbers and two split type bases arranged side by side; The anterior hinged telescopic cantilever beam of monolithic back timber through the swing arm Driven by Hydraulic Cylinder; Utilize the external part of the telescopic cantilever beam that the cantilever telescopic hydraulic cylinder drives and the horizontal girder steel of split type back timber together support of advance timbering; At each horizontal steel beam bottom interconnective segmentation guide rail is set respectively, the road wheel that transports the overhead trolley of advance timbering moves along interconnective segmentation rail length direction; The external part that moves the frame hydraulic cylinder hinged on the monolithic base is connected with split type base through connector; The advance timbering of no connector moves with the overhead trolley that is arranged on the interconnective segmentation guide rail through the derricking gear that is arranged on the monolithic back timber on the split type base.
2. circulation protrusive advance support rack according to claim 1; It is characterized in that: the derricking gear that is arranged on the monolithic back timber of said hoisting bracket mainly comprises the telescoping mechanism that has suspension hook that is driven by the rotating mechanism that rotates Driven by Hydraulic Cylinder, oscillating motor and telescopic hydraulic cylinder; The rotating mechanism that is assembled on the monolithic back timber is hinged through oscillating motor and telescoping mechanism, is assembled in the hook lifting of the hook lifting hydraulic cylinder of telescoping mechanism rear end through drag cable assembly control telescoping mechanism front end.
3. circulation protrusive advance support rack according to claim 1; It is characterized in that: the said hoisting bracket of two symmetric arrangement is assembled in the front and back ends in the lame advanced supporting section respectively; Two erect to hang between the support at least three group advance timberings are set; Wherein the split type base of two groups of advance timberings respectively through connector be assembled in the external part that moves the frame hydraulic cylinder hinged on the monolithic base of lame advanced supporting section front and back ends and link together, all the other are respectively organized on the split type base of advance timbering does not have connector.
4. circulation protrusive advance support rack according to claim 1 is characterized in that: said multistage grafting link-type guiding mechanism, form by guide rod casing, secondary fairlead and said monolithic base or split type base; The middle part of the top of guide rod casing and said monolithic back timber or split type back timber is hinged, and insert in the secondary fairlead bottom, and inserts together in said monolithic base or the split type base with the secondary fairlead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248890.9A CN102748055B (en) | 2012-07-18 | 2012-07-18 | Circulation advancing type forepoling support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248890.9A CN102748055B (en) | 2012-07-18 | 2012-07-18 | Circulation advancing type forepoling support |
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| Publication Number | Publication Date |
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| CN102748055A true CN102748055A (en) | 2012-10-24 |
| CN102748055B CN102748055B (en) | 2014-06-18 |
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| CN201210248890.9A Active CN102748055B (en) | 2012-07-18 | 2012-07-18 | Circulation advancing type forepoling support |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500117A (en) * | 2014-12-10 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Repeated-support-free continuous support forepoling hydraulic support frame |
| CN107143363A (en) * | 2017-07-17 | 2017-09-08 | 平顶山平煤机煤矿机械装备有限公司 | A kind of lateral arrangement air way advance timbering group of firm support |
| CN108657949A (en) * | 2018-05-09 | 2018-10-16 | 河北煤炭科学研究院 | Pneumatic monorail crane mounting device and installation method |
| CN109555550A (en) * | 2018-11-06 | 2019-04-02 | 郑州合新科技有限公司 | Gob side entry retaining circulatory self-moving formula support frame assembly |
| CN110145347A (en) * | 2019-07-05 | 2019-08-20 | 山东科技大学 | A kind of temporary support for drivage face equipment and its working method |
| CN112282803A (en) * | 2020-10-09 | 2021-01-29 | 山东塔高矿业机械装备制造有限公司 | Supporting device and method for fully mechanized coal mining face transportation crossheading and application of supporting device and method |
| CN112576301A (en) * | 2020-12-15 | 2021-03-30 | 郑州煤矿机械集团股份有限公司 | Fully-mechanized mining face transportation crossheading unit support carrying system |
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| CN202745906U (en) * | 2012-07-18 | 2013-02-20 | 沈阳天安矿山机械科技有限公司 | Circulatory advancing forepoling |
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| GB1438796A (en) * | 1972-06-14 | 1976-06-09 | Groetschel Karl Maria | Advancing mine support systems |
| DE3446043C1 (en) * | 1984-12-18 | 1986-06-19 | NLW Fördertechnik GmbH, 4232 Xanten | Face-boundary support |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500117A (en) * | 2014-12-10 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Repeated-support-free continuous support forepoling hydraulic support frame |
| CN107143363A (en) * | 2017-07-17 | 2017-09-08 | 平顶山平煤机煤矿机械装备有限公司 | A kind of lateral arrangement air way advance timbering group of firm support |
| CN107143363B (en) * | 2017-07-17 | 2023-03-28 | 平顶山平煤机煤矿机械装备有限公司 | Transversely-arranged air duct advanced support group for stable support |
| CN108657949A (en) * | 2018-05-09 | 2018-10-16 | 河北煤炭科学研究院 | Pneumatic monorail crane mounting device and installation method |
| CN109555550A (en) * | 2018-11-06 | 2019-04-02 | 郑州合新科技有限公司 | Gob side entry retaining circulatory self-moving formula support frame assembly |
| CN110145347A (en) * | 2019-07-05 | 2019-08-20 | 山东科技大学 | A kind of temporary support for drivage face equipment and its working method |
| CN112282803A (en) * | 2020-10-09 | 2021-01-29 | 山东塔高矿业机械装备制造有限公司 | Supporting device and method for fully mechanized coal mining face transportation crossheading and application of supporting device and method |
| CN112282803B (en) * | 2020-10-09 | 2022-11-22 | 山东塔高矿业机械装备制造有限公司 | Supporting device and method for fully mechanized coal mining face transportation crossheading and application of supporting device and method |
| CN112576301A (en) * | 2020-12-15 | 2021-03-30 | 郑州煤矿机械集团股份有限公司 | Fully-mechanized mining face transportation crossheading unit support carrying system |
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| Publication number | Publication date |
|---|---|
| CN102748055B (en) | 2014-06-18 |
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