CN105065049A - Hydraulic support for high-water cut and fill mining - Google Patents
Hydraulic support for high-water cut and fill mining Download PDFInfo
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- CN105065049A CN105065049A CN201510532237.9A CN201510532237A CN105065049A CN 105065049 A CN105065049 A CN 105065049A CN 201510532237 A CN201510532237 A CN 201510532237A CN 105065049 A CN105065049 A CN 105065049A
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- back timber
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- hydraulic bracket
- water packing
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Abstract
The invention relates to the technical field of coal mining and discloses a hydraulic support for high-water cut and fill mining. The hydraulic support comprises a front top beam, a rear top beam, a length-changeable extension structure, a connection structure, a telescopic stand column, a base and a height-adjustable baffle structure. According to the hydraulic support, the front top beam and the rear top beam are integrated at the same base at the same time, the front top beam and the rear top beam are supported through the telescopic stand column, the front top beam can support a coal mining region and a coal wall, and smooth operation of the coal mining work is guaranteed; the rear top beam conducts supporting and cut and fill supporting on the top face of a goaf in the next process while conducting coal mining, and the baffle structure can isolate the goaf, so that high-water packing materials can achieve cut and fill forming in the goaf so as to form the thickness having the supporting function quickly, and the cut and fill effect is guaranteed; by means of the hydraulic support, the coal mining work and the cut and fill work are conducted at the same time, and the coal mining efficiency and the cut and fill efficiency are improved greatly.
Description
Technical field
The present invention relates to Coal Mining Technology field, particularly relate to a kind of high*.water packing mining hydraulic bracket.
Background technology
In coal mining field; from environmental protection and the long-range consideration of increasing the benefit; cement pipeline pack is carried out to beneath after exploitation; its object is to can reduce surface subsidence amount, reduce costs; ground hillock can be cancelled again; land occupation, farmland, be not very beneficial for environmental protection, and the safety in production for colliery provides technical equipment guarantee.
And be exploitation or filling all needs excavation support, excavation support is the key equipment of comprehensive mechanical coal mining, and the coal mining new technology utilizing excavation support to carry out filling is only initial stage in China.At present, conventional excavation support 26S Proteasome Structure and Function is all comparatively single, can not filling simultaneously when mining, and can not mine when filling, seriously constrains mining progress, makes production efficiency greatly limited.
Summary of the invention
(1) technical problem that will solve
The object of this invention is to provide high*.water packing mining hydraulic bracket, solve the problem that conventional excavation support production efficiency is lower.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of high*.water packing mining hydraulic bracket, comprise front back timber, rear back timber, adjustable length extending structure, bar linkage structure, telescopic column, base and adjustable for height baffle arrangement,
The first end of described front back timber is connected with described extending structure, second end of described front back timber and the first end of described rear back timber hinged, described base is arranged on the below of described front back timber and rear back timber, and described bar linkage structure is positioned at described front back timber, between rear back timber and described base, the hinged place of described front back timber and described rear back timber also with the upper end thereof of described bar linkage structure, lower end and the described base of described bar linkage structure are hinged, between described front back timber and described base, all hingedly between described rear back timber and described base be provided with described telescopic column, described baffle arrangement is arranged on one end of described base, and described baffle arrangement is positioned at below described rear back timber.
Wherein, described extending structure comprises extensible canopy, and described extensible canopy is connected with the first end of described front back timber.
Wherein, described extending structure also comprises one-level face guard and secondary protecting side plate, described extensible canopy, described one-level face guard and described secondary protecting side plate are hinged in turn, and being all hinged with jack between described extensible canopy and described one-level face guard, between described one-level face guard and described secondary protecting side plate, described jack lifts for driving described one-level face guard and described secondary protecting side plate or puts down.
Wherein, one end of what described baffle arrangement was vertical be arranged on described base, and described baffle arrangement comprises driving jack and the casing member of connection, described driving jack is for driving casing member to raise or reducing.
Wherein, described high*.water packing mining hydraulic bracket also comprises and drags seat, described in drag seat to be arranged between described baffle arrangement and described base.
Wherein, described bar linkage structure comprises connecting rod, front rod and back link in Y type, in described Y type, two upper ends of connecting rod are hinged with described front back timber, described rear back timber respectively, in described Y type the lower end of connecting rod respectively with described front rod upper end, described back link upper end thereof, described front rod lower end, described back link lower end are all hinged with described base, in the middle part of described upper connecting rod and also hingedly between described front back timber be provided with jack.
Wherein, described high*.water packing mining hydraulic bracket also comprises side guard board, described front back timber both sides, described rear back timber both sides are provided with movable side guard board, described front back timber, between described rear back timber and corresponding side guard board, be provided with spring spool, for controlling the expansion degree of described side guard board, each spring spool is provided with a plate valve.
Wherein, described base for opening a grade formula base, described base open passing frame and the advancing jack that grade place is provided with connection, and described advancing jack is connected with described base.
Wherein, described high*.water packing mining hydraulic bracket also comprises the anti-skid device be connected on base.
Wherein, described high*.water packing mining hydraulic bracket also comprises joist, and described joist arranges the second end of back timber in the rear.
(3) beneficial effect
The object of this invention is to provide high*.water packing mining hydraulic bracket, by simultaneously integrated front back timber and rear back timber on same base, utilize telescopic column front back timber and rear back timber to be propped, front back timber can carry out supporting to coal mining region and rib, ensures that coal mining activity carries out smoothly; Then back timber is simultaneously while coal mining, goaf end face is below supported and carries out filling and support, and baffle arrangement can be isolated goaf, thus make high water filling material can be shaping in goaf filling, and form the thickness with supporting role fast, ensure filling effect; The present invention can realize coal mining activity and packing job carries out simultaneously, substantially increases coal mining and pack effectiveness.
Accompanying drawing explanation
Fig. 1 is the high*.water packing mining hydraulic bracket structural representation of the embodiment of the present invention.
In figure, 1: front back timber;
2: rear back timber;
3: extending structure; 31: extensible canopy; 32: one-level face guard;
33: secondary protecting side plate;
4: bar linkage structure; 41: upper connecting rod; 42: front rod; 43: back link;
5: telescopic column;
6: base;
7: baffle arrangement; 71: casing member; 72: drive jack;
8: side guard board;
9: joist.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance for illustration of the present invention, but is not used for limiting the scope of the invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of high*.water packing mining hydraulic bracket, comprises front back timber 1, rear back timber 2, adjustable length extending structure 3, bar linkage structure 4, telescopic column 5, base 6 and adjustable for height baffle arrangement 7,
The first end of described front back timber 1 is connected with described extending structure 3, second end of described front back timber 1 and the first end of described rear back timber 2 hinged, described base 6 is arranged on the below of described front back timber 1 and rear back timber 2, and described bar linkage structure 4 is positioned at described front back timber 1, between rear back timber 2 and described base 6, the hinged place of described front back timber 1 and described rear back timber 2 also with the upper end thereof of described bar linkage structure 4, lower end and the described base 6 of described bar linkage structure 4 are hinged, between described front back timber 1 and described base 6, all hingedly between described rear back timber 2 and described base 6 be provided with described telescopic column 5, described baffle arrangement 7 is arranged on one end of described base 6, and described baffle arrangement 7 is positioned at below described rear back timber 2.
The object of this invention is to provide high*.water packing mining hydraulic bracket, by simultaneously integrated front back timber 1 and rear back timber 2 on same base 6, utilize telescopic column 5 front back timber 1 and rear back timber 2 to be propped, front back timber 1 can carry out supporting to coal mining region and rib, ensures that coal mining activity carries out smoothly; Then back timber 2 is simultaneously while coal mining, goaf end face is below supported and carries out filling and support, and baffle arrangement 7 can be isolated goaf, thus make high water filling material can be shaping in goaf filling, and form the thickness with supporting role fast, ensure filling effect; The present invention can realize coal mining activity and packing job carries out simultaneously, substantially increases coal mining and pack effectiveness.
As shown in Figure 1, in the embodiment of the present invention, described extending structure 3 comprises extensible canopy 31, and described extensible canopy 31 is connected with the first end of described front back timber 1.
As shown in Figure 1, in the embodiment of the present invention, described extending structure 3 also comprises one-level face guard 32 and secondary protecting side plate 33, described extensible canopy 31, described one-level face guard 32 and described secondary protecting side plate 33 are hinged in turn, and being all hinged with jack between described extensible canopy 31 and described one-level face guard 32, between described one-level face guard 32 and described secondary protecting side plate 33, described jack lifts for driving described one-level face guard 32 and described secondary protecting side plate 33 or puts down.
Wherein, in the embodiment of the present invention, extending structure 3 comprises extensible canopy 31 and one-level face guard 32 and secondary protecting side plate 33, top can be protected and can protect rib again: extensible canopy 31 mainly provides the function of temporary lining top board, can allow first not move the whole support of the present invention after coal-winning machine, by extensible canopy 31 is stretched out, the bank top board that newly can expose front plays temporary lining effect, thus need not frequent mobile total of the present invention, simple to operate, greatly reduce working strength, and efficiency is increased work efficiency greatly; And, also can play and safeguard breaking roof effect after moving frame, open one-level face guard 32 and secondary protecting side plate 33 protects rib simultaneously, prevent wall caving.
As shown in Figure 1, one end of what described baffle arrangement 7 was vertical be arranged on described base 6, and described baffle arrangement 7 comprises driving jack 72 and the casing member 71 of connection, described driving jack 72 raises for driving casing member 71 or reduces.Described high*.water packing mining hydraulic bracket also comprises and drags seat, described in drag seat to be arranged between described baffle arrangement 7 and described base 6.
Wherein, in the embodiment of the present invention, the effect of casing member 71 is isolation goafs, to make high water filling material can be shaping in goaf filling, and forms the thickness with supporting role fast, ensures filling effect; General being connected to by casing member 71 drags an afterbody, under driving jack 72 acts on, can controllable register part 71 differing heights, and to adapt to the filling of different mining height.
As shown in Figure 1, in the embodiment of the present invention, described bar linkage structure 4 comprises connecting rod 41 in Y type, front rod 42 and back link 43, in described Y type, two upper ends of connecting rod 41 are hinged with described front back timber 1, described rear back timber 2 respectively, in described Y type the lower end of connecting rod 41 respectively with described front rod 42 upper end, described back link 43 upper end thereof, described front rod 42 lower end, described back link 43 lower end are all hinged with described base 6, in the middle part of described upper connecting rod 41 and also hingedly between described front back timber 1 be provided with jack.
Wherein, in the embodiment of the present invention, upper connecting rod 41 adopts Y type scuttle-open high intensity case body structure, can observe by skylight the situation that compacting filler is filled in goaf better; Front rod 42, back link 43 adopt high-intensity box welded construction; The effect of bar linkage structure 4 is: make integral support of the present invention heightening in scope, the distance (beam-ends distance) of front back timber 1 front end and rib changes little as far as possible, better supporting roof; Bear horizontal component and the lateral force of top board, keep support stablize to, make telescopic column 5 not by lateral force simultaneously.
As shown in Figure 1, in the embodiment of the present invention, described high*.water packing mining hydraulic bracket also comprises side guard board 8, described front back timber 1 both sides, described rear back timber 2 both sides are provided with movable side guard board 8, described front back timber 1, between described rear back timber 2 and corresponding side guard board 8, be provided with spring spool, for controlling the expansion degree of described side guard board 8, each spring spool is provided with a plate valve.
Wherein, in the embodiment of the present invention, the side guard board 8 of both sides is generally one-sided movable side protection plate 8, opposite side is fixation side backplate 8, movable side protection plate 8 is released at ordinary times by the spring force in spring spool, make the side guard board 8 of the high*.water packing mining hydraulic bracket of it and jingle bell keep good contact, to prevent the broken cash in top board or old man from falling down, injure personnel or equipment by a crashing object.This support front back timber 1 movable side protection plate 8 and rear back timber 2 movable side protection plate 8 control respectively by a plate valve.
As shown in Figure 1, in the embodiment of the present invention, described base 6 for opening a grade formula base 6, described base 6 open passing frame and the advancing jack that grade place is provided with connection, and described advancing jack is connected with described base 6.
Wherein, base 6 is parts roof pressure being delivered to base plate and center rest, except meeting certain stiffness and intensity, also require to be eager to excel to the up-and-down compliance of base plate, little to contacts baseplate specific pressure, to prevent base 6 from inserting the end, its Main Function comprises: for telescopic column 5, hydraulic control device, passing frame and advancing jack and other servicing unit form installing space; For staff creates good working environment; There is certain discharge refuse gear cash effect; Ensure stability and the globality of support entirety of the present invention.In the embodiment of the present invention, base 6 adopts band gap bridge to open a grade formula high-intensity box welded construction, and it directly acts on floor undulation, and on base 6, the pin joint of telescopic column 5 is provided with needling; Base 6 and the hinged pattern of front rod 42, back link 43 be respectively single shaft hole and Double-shaft-and-hole hinged; Base 6 is opened a grade place and is provided with passing frame, and passing frame plays pushing and sliding and moves the effect of frame under the effect of advancing jack;
In addition, push rod is the intermediate connecting mechanism between the advancing jack of support and anterior conveyer, generally completes pushing and sliding by it and moves the action of frame, the guide effect of support when it also has the function of certain anti-conveyor from sliding down and moves frame simultaneously.Support of the present invention adopts the structure of the long push rod of upside-down mounting jack, long push rod is integral rigidity structure, front part sides is welded with guide strip, its one end is connected with front conveyer by connector, the other end is connected with base 6 by advancing jack, and this spline structure is not only simple but also can meet the requirement of the power of trying to stop people from fighting each other and pushing and sliding power.
In the embodiment of the present invention, described high*.water packing mining hydraulic bracket also comprises the anti-skid device be connected on base 6.When work plane inclination angle is larger, the trend that after support of the present invention entirety can produce base 6 slide downward and front back timber 1, back timber 2 is toppled over downwards, with the increase at inclination angle, glide and the tendency of toppling over more serious.Support of the present invention be designed with tilting prevention device and shoe.Be connected with anti-down jack between the anti-fall base that on the contrary set cap prevented by support.Base 6 is anti-skidding both can install anti-skidding jack between the gap bridge of adjacent stent, can install anti-skidding jack again, connected by the hinged seat of several supports, play anti-skidding effect by round-link chain and anti-skidding chain barrel outside base 6.To glide phenomenon if there is falling frame or bracket base 6, then carry out appropriateness adjustment with corresponding jack.
As shown in Figure 1, described high*.water packing mining hydraulic bracket also comprises joist 9, and described joist 9 arranges the second end of back timber 2 in the rear.
Wherein, packet mode filling is the filling bag that the cubic bodily form is one by one propped at adjacent support rear portion, and mixed filler is directly filled with in filling bag, the flow range of restriction slurry, the supporting role to top board is played after solidifying, effectively prevent the inbreak of immediate roof, filling effect strengthens greatly, simultaneously, owing to limiting the flow range of slurry, be not only applicable to rise mining, and be applicable to horizon mining, the scope of application is wider; Joist 9 the supporting area that can increase rear back timber 2 pairs of goafs is set, filling bag can also be hung on joist 9, be convenient to carry out filling to goaf.
In addition, in the embodiment of the present invention, also should be furnished with hydraulic system configuration, for needing the parts providing power to provide power to each jack etc. in structure of the present invention, hydraulic system basic configuration is as follows:
(1) hydraulic power unit adopts three pump two casees, a pump for subsequent use, and front and back frame is single for single time, flow 2 × 200L/min, pressure 31.5MPa.
(2) feed tube diameter of phi 51mm, liquid back pipe diameter of phi 63mm.
(3) telescopic column 5, advancing jack adopt 400L/min large-capacity valve, and all the other are 200L/min flow valve.
(4) the preferred series model specialized in underground coal mine and use selected by all kinds of hydraulic valve, and sealing adopts high-quality inlet seal, and sebific duct adopts quality product.
Summary, utilize high*.water packing mining hydraulic bracket of the present invention, undertaken digging up mine to abundant reclaiming coal resource by filling method, improve resource recovery, extend mine service-life, control subsidence and realize " three next on " to mine, reduce environmental destruction etc. and there is obvious economic benefit, social benefit and environmental benefit, there is vast potential for future development; It is higher that ultrahigh water quick solidifying material consolidated fill has water supply volume, there is during use good suspension, the suspension of aforementioned filling slurry and mobility are improved, the Hydraulic transportation of low concentration slip in can realizing, avoid the problem of high concentration ground paste difficulty of transportation, simplify activities, decrease running cost; Research and development coals mining-filling Integral hydraulic support, the supporting to top board when not only can play coal mining, can also realize the filling in goaf, improve operating efficiency, truly achieve supporting and fill integrated; Research and development are applicable to the new type hydraulic bearer of ultrahigh water filling process, and having promoted the combination of process for stoping and filling process, is the progress and development of coal-mining technique, fill up the research of mining with filling process both at home and abroad blank; The development of novel filling hydraulic support is a kind of Thinking Innovation, ideological liberation, the open visual field of designer, contributes to the health, the fast development that promote support industry, fills up this support and research and develop blank both at home and abroad.
Wherein, back timber 2 monolithic construction after front back timber 1, arranges total length side guard board 8, improves top deck coverage, improves supporting effect, reduce between each support and leak bar; Side guard board 8 is bilateral activity side guard board 8, and exchange to adapt to left and right work plane, fix side during use, opposite side activity is installed; Front back timber 1 adopts overall structure, and its structure is simple, good reliability, and comparatively strong to the balanced capacity of roof toad, front end supporting force is larger; Rear back timber 2 adopts high-intensity box welded construction, and rear back timber 2 can support goaf under the effect of rear telescopic column 5; Back timber 2 structure after employing combined type, reduces to go into the well size, increases a top area simultaneously; For realizing the function of filling, set up rear back timber 2 and rear telescopic column 5 at front back timber 1 tail end, base 6 afterbody is connected with telescopic baffle part 71, upper lower baffle plate forms template, and form a closed space between dividing plate, be beneficial to satchel filling below, thus filling function can be realized; Support of the present invention adopts positive four-bar linkage structure 4 to design, and upper connecting rod 41 adopts y-type structure, and front/rear connecting rod 43 is single bar linkage structure 4, hinged with base 6, increases the bending resistance of connecting rod, turns round ability, improves the stability of support; Adopt Integer push rod structure, good rigidly; Advancing jack is
stroke is 900mm, and this advancing jack is common upside-down mounting pattern, can meet the requirement that power of trying to stop people from fighting each other is large, pushing and sliding power is little; Base 6 is rigid base 6, and middle part base plate opens crotch, is conducive to the discharge of float coal, spoil.
Concrete, development and design 5 meters of full-seam mining high*.water packing Integral hydraulic supports.This support mining height is large, and compact conformation is easy and simple to handle, achieves filling of mining fast, improves back production and filling operation efficiency.Compared with split type filling support, decrease the support repeatedly to top board, avoid artificial online, improve supporting effect; Filling set cap have employed telescopic structure, namely realizes immediate support and mines, achieve again high water condensation and coal mining parallel operations.Extensible canopy 31 serves false cap support action, adds a coal cutting technique, shortens single-cycle time; Coal cutting and high water condensation time realize balancing; Filling support can adapt to the filling mining of more complex geological condition.Novel filling hydraulic support top beam contraction in length, reduces supporting distance relative to split type top board and reaches 3.3 meters, can adapt to more complicated geological conditions.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a high*.water packing mining hydraulic bracket, is characterized in that, comprises front back timber, rear back timber, adjustable length extending structure, bar linkage structure, telescopic column, base and adjustable for height baffle arrangement,
The first end of described front back timber is connected with described extending structure, second end of described front back timber and the first end of described rear back timber hinged, described base is arranged on the below of described front back timber and rear back timber, and described bar linkage structure is positioned at described front back timber, between rear back timber and described base, the hinged place of described front back timber and described rear back timber also with the upper end thereof of described bar linkage structure, lower end and the described base of described bar linkage structure are hinged, between described front back timber and described base, all hingedly between described rear back timber and described base be provided with described telescopic column, described baffle arrangement is arranged on one end of described base, and described baffle arrangement is positioned at below described rear back timber.
2. high*.water packing mining hydraulic bracket as claimed in claim 1, it is characterized in that, described extending structure comprises extensible canopy, and described extensible canopy is connected with the first end of described front back timber.
3. high*.water packing mining hydraulic bracket as claimed in claim 2, it is characterized in that, described extending structure also comprises one-level face guard and secondary protecting side plate, described extensible canopy, described one-level face guard and described secondary protecting side plate are hinged in turn, and being all hinged with jack between described extensible canopy and described one-level face guard, between described one-level face guard and described secondary protecting side plate, described jack lifts for driving described one-level face guard and described secondary protecting side plate or puts down.
4. high*.water packing mining hydraulic bracket as claimed in claim 1, it is characterized in that, one end of what described baffle arrangement was vertical be arranged on described base, and described baffle arrangement comprises driving jack and the casing member of connection, described driving jack is for driving casing member to raise or reducing.
5. high*.water packing mining hydraulic bracket as claimed in claim 4, is characterized in that, described high*.water packing mining hydraulic bracket also comprises and drags seat, described in drag seat to be arranged between described baffle arrangement and described base.
6. high*.water packing mining hydraulic bracket as claimed in claim 1, it is characterized in that, described bar linkage structure comprises connecting rod, front rod and back link in Y type, in described Y type, two upper ends of connecting rod are hinged with described front back timber, described rear back timber respectively, in described Y type the lower end of connecting rod respectively with described front rod upper end, described back link upper end thereof, described front rod lower end, described back link lower end are all hinged with described base, in the middle part of described upper connecting rod and also hingedly between described front back timber be provided with jack.
7. the high*.water packing mining hydraulic bracket as described in any one of claim 1-6, it is characterized in that, described high*.water packing mining hydraulic bracket also comprises side guard board, described front back timber both sides, described rear back timber both sides are provided with movable side guard board, described front back timber, between described rear back timber and corresponding side guard board, be provided with spring spool, for controlling the expansion degree of described side guard board, each spring spool is provided with a plate valve.
8. high*.water packing mining hydraulic bracket as claimed in claim 7, is characterized in that, described base for opening a grade formula base, described base open passing frame and the advancing jack that grade place is provided with connection, and described advancing jack is connected with described base.
9. high*.water packing mining hydraulic bracket as claimed in claim 8, it is characterized in that, described high*.water packing mining hydraulic bracket also comprises the anti-skid device be connected on base.
10. high*.water packing mining hydraulic bracket as claimed in claim 9, it is characterized in that, described high*.water packing mining hydraulic bracket also comprises joist, and described joist arranges the second end of back timber in the rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532237.9A CN105065049A (en) | 2015-08-26 | 2015-08-26 | Hydraulic support for high-water cut and fill mining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532237.9A CN105065049A (en) | 2015-08-26 | 2015-08-26 | Hydraulic support for high-water cut and fill mining |
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| CN105065049A true CN105065049A (en) | 2015-11-18 |
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| CN201510532237.9A Pending CN105065049A (en) | 2015-08-26 | 2015-08-26 | Hydraulic support for high-water cut and fill mining |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105545333A (en) * | 2016-01-29 | 2016-05-04 | 北京华创矿安科技有限公司 | Parallel-connection hydraulic support |
| CN105626117A (en) * | 2016-02-25 | 2016-06-01 | 郑州四维矿业机械有限责任公司 | Hydraulic support and jacking beam for hydraulic support |
| CN105626115A (en) * | 2016-02-25 | 2016-06-01 | 郑州四维矿业机械有限责任公司 | Backfilling hydraulic support |
| CN106121702A (en) * | 2016-08-30 | 2016-11-16 | 孙姗姗 | A kind of advanced hydraulic support that is accurately positioned moves the apparatus and method in frame path |
| CN106401630A (en) * | 2016-08-30 | 2017-02-15 | 孙姗姗 | Device for preventing side slipping of support base and using method |
| CN113236327A (en) * | 2021-05-31 | 2021-08-10 | 中煤北京煤矿机械有限责任公司 | Sliding adjustable connecting rod side guard plate structure suitable for three telescopic supports |
| CN113586116A (en) * | 2021-08-17 | 2021-11-02 | 西安绿色矿业研究院有限公司 | Coal mine solid filling mining hydraulic support |
| CN115573746A (en) * | 2022-09-19 | 2023-01-06 | 天津鹏程誉泰液压支架有限公司 | Multi-channel filling hydraulic support system suitable for thin coal seam |
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| CN105626115A (en) * | 2016-02-25 | 2016-06-01 | 郑州四维矿业机械有限责任公司 | Backfilling hydraulic support |
| CN106121702A (en) * | 2016-08-30 | 2016-11-16 | 孙姗姗 | A kind of advanced hydraulic support that is accurately positioned moves the apparatus and method in frame path |
| CN106401630A (en) * | 2016-08-30 | 2017-02-15 | 孙姗姗 | Device for preventing side slipping of support base and using method |
| CN113236327A (en) * | 2021-05-31 | 2021-08-10 | 中煤北京煤矿机械有限责任公司 | Sliding adjustable connecting rod side guard plate structure suitable for three telescopic supports |
| CN113586116A (en) * | 2021-08-17 | 2021-11-02 | 西安绿色矿业研究院有限公司 | Coal mine solid filling mining hydraulic support |
| CN115573746A (en) * | 2022-09-19 | 2023-01-06 | 天津鹏程誉泰液压支架有限公司 | Multi-channel filling hydraulic support system suitable for thin coal seam |
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Application publication date: 20151118 |