CN107313795A - A kind of light-duty scalable flexible hydraulic shield support - Google Patents
A kind of light-duty scalable flexible hydraulic shield support Download PDFInfo
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- CN107313795A CN107313795A CN201710499217.5A CN201710499217A CN107313795A CN 107313795 A CN107313795 A CN 107313795A CN 201710499217 A CN201710499217 A CN 201710499217A CN 107313795 A CN107313795 A CN 107313795A
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- back timber
- shield
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- support
- tail boom
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 13
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- 238000005336 cracking Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 4
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- 239000000839 emulsion Substances 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
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- 239000000725 suspension Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Classifications
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- 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
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- 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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses the light-duty scalable flexible hydraulic shield support of one kind, it is linked in sequence and is constituted by the tail boom of the back timber of epimere, the caving shield in stage casing, bottom.Guide beam is movably set with the front end of back timber, guide beam upper surface is the axis composition angle of planing surface, planing surface and back timber；Described caving shield is hinged with tail boom, and using very heavy top support between caving shield arm and tail boom arm；The tail end of tail boom is provided with the piston shoes slided on coal face bottom plate.The light-duty scalable flexible hydraulic shield support of the present invention, its support force is bigger, using more flexible, and adaptability is wider, is easily installed and uses, and reaches that automatically walk is moved.Main puppet of the inclination angle more than 45 ° that be adapted to of the invention is tilted and half-edge coal seam or even the coal-face for having reversing；And suitable for medium-thickness seam and above coal seam, there is certain adaptability to coal seam change；And suitable for using inclination or the pseudo- working face for tilting wall type sloping mining approach arrangement；Suitable for the coal seam of roof cracking.
Description
Technical field
It is specially a kind of light-duty easy hydraulic support present invention relates particularly to facility of mining.
Background technology
The demand of coal in China is increasing, and corresponding coal mining is also more next big.Steeply inclined thin seam reserves are in China
Coal occupies higher gross reserves, and particularly in southwestern section, 80% mining area preservation has half-edge coal seam.For a long time, such
The exploitation in coal seam is extremely difficult, and efficiency is low, cost is high, and safe pressure is very big.At home and abroad in coal mining, half-edge coal seam
Exploitation is global problem, and the support options in steeply-inclined seam mining are even more the difficulty in difficulty.In recent years, China developed
For 60 ° of large-inclination-angle coal bed self-advancing hydraulic supports, but because its weight support frame is big, transports, install, tearing shiftings, operation open and be stranded
Difficult big, labor intensity is very big, and complicated, fault rate is high, has had a strong impact on its popularization.Therefore, high inclination-angle is effectively solved
Or the safety support of complicated hard-to-recovery reserve is exactly a urgent problem to be solved.
The exploitation of half-edge coal seam is downward exploitation, and downside is coal-face, and upside is goaf, is had in goaf
Substantial amounts of spoil is caving, and is filled in goaf, and suspension device isolates in goaf with coal-face, to coal-face shape
Into protection, substantial amounts of spoil is extruded suspension device.
Traditionally the supporting to coal seam typically uses two kinds of forms of mine timber supporting or individual prop supporting, but both are propped up
Shield mode all has that labor intensity is big, supporting intensity is low, safe condition is poor, the low defect of efficiency.
In recent years, with the development of coal-mining technique, fully mechanized mining and top grade are also used in the steeply inclined thin seam of some mines
It is general to adopt technology.But due to coal seam feature, in the traction of coal-winning machine, the installation of support, regulation, propulsion aspect are very difficult, make
High into cost of winning, labor intensity is big.Therefore for the exploitation of steeply inclined thin seam, it is badly in need of a kind of new support equipment to solve
Certainly problems faced.
Patent (201620006696.3) discloses a kind of adjustable flexibility support, and it cranks arm by hinge including two up and down
Connection, the technology of hydraulic cylinder is then set at middle part, well can be minimized falsework, is adapted to scope extensively, can be free
Stretch, in especially suitable small space.But, a kind of this kind of adjustable flexibility support is mainly used in the exploitation of big inclined seam, no
It is applicable the exploitation of half-edge coal seam.
Therefore, with the development of coal-mining technique, it would be desirable to a kind of more applicable support for applying to half-edge coal seam.
The content of the invention
In order to solve the above problems, it is an object of the invention to the shortcoming for overcoming prior art, there is provided suitable for high-dipping
The light-duty scalable flexible hydraulic shield support mined, its support force is bigger, using more flexible, and adaptability is wider, is easily installed
Use.
A kind of light-duty scalable flexible hydraulic shield support of the present invention, by the back timber 2, the caving shield 3 in stage casing, bottom of epimere
The tail boom 4 at end is linked in sequence composition.The guide beam 1 for being slided on coal face top plate, institute are additionally provided with the front end of back timber
The guide beam stated is a slide plate, and guide beam upper surface is planing surface 11, and planing surface back is mounting bracket 12, and guide beam 1 passes through
Mounting bracket 12 is movably connected in the front end of back timber 2, and the axis of planing surface 11 and back timber constitutes angle；Described caving shield 3 and tail
Beam 4 is hinged, and is supported between caving shield arm and tail boom arm using jack 7；The tail end of tail boom is provided with for mining
The piston shoes 8 slided on the bottom plate of face.
Light-duty scalable flexible hydraulic shield support as described above a kind of, illustrate further for, described back timber by
Back timber leading portion 14 and back timber back segment 15 are formed by connecting, and are coaxially arranged with back timber while penetrating back timber leading portion and back timber back segment
Connecting pin 16, is provided with screw through back timber leading portion side wall and screws in connecting pin；On the side wall of back timber leading portion and after back timber
Projection 17 is provided with the side wall of section, and is socketed projection 17 by screw, makes back timber leading portion and back timber back segment close
Connection；Described caving shield is by caving shield leading portion and caving shield back segment by being formed by connecting.
A kind of light-duty scalable flexible hydraulic shield support as described above, is illustrated further as described guide beam
Planing surface 11 be plane, and flat front end bending generate inclined-plane, make planing surface formation ship shape, the edge of planing surface is respectively provided with
Circular arc chamfering；Described mounting bracket 12 is floor, and is vertically set on planing surface back, floor and sets pin-and-hole, before back timber
End is horizontally disposed bearing pin, and bearing pin is vertical with back timber axis, and bearing pin is inserted in the pin-and-hole on floor, planing surface is entered with respect to back timber
Row upset.
A kind of light-duty scalable flexible hydraulic shield support as described above, is illustrated further as described planing surface
Back is arranged with two pieces of floors in parallel, and the front end of described back timber constitutes axis pin base, pin along the axially extended two pieces of risers 13 of back timber
Axle is each passed through two pieces of floors and two pieces of risers, is directed to beam installed in back timber front end；Floor side is provided with stiffener plate, altogether
It is supported with to planing surface；The lower edge of riser 13 flushes back timber lower edge, and riser top edge is hypotenuse, constitutes riser
Triangle, sets bearing pin at vertex of a triangle.
A kind of light-duty scalable flexible hydraulic shield support as described above, is illustrated further as in back timber, caving shield
Be connected device 6 on the wall of side between setting frame, for attachment means between frame to be fixed；The device that is connected between frame is U-shaped
Pin.
Light-duty scalable flexible hydraulic shield support as described above a kind of, illustrates further as, described back timber, covers
Guard beam, tail boom are tubular structure, are fastened and formed by least two pieces arcs；And stiffener plate 10 is set in pipe；Back timber leads to
Cross and be welded to connect caving shield.
A kind of light-duty scalable flexible hydraulic shield support as described above, is illustrated further as described caving shield
Limited block is provided with hinged place with tail boom, for limiting the flip angle between caving shield and tail boom；Described caving shield
Middle part in the middle part of tail boom with being provided with hinge seat, for connecting jack two ends.
A kind of light-duty scalable flexible hydraulic shield support as described above, is illustrated further as described piston shoes 8 are
It is arranged on the arcwall face of tail boom bottom.
A kind of light-duty scalable flexible hydraulic shield support as described above, is illustrated further as described tail boom is long
Spend for 1100-1400mm, preferably 1250mm；Described shielding beam length is 1000-1400mm, preferably 1200mm, wherein screening
Segment length is 900mm after beam, and segment length is 200mm before caving shield；Described back timber length is 1200-1800mm, preferably
Segment length 600-650mm after segment length 750-850cm, back timber before 1450mm, wherein back timber；Hinge seat in the middle part of described caving shield is set
Put at away from shielding tail beam 350mm, the hinge seat in the middle part of described tail boom is arranged on away from tail boom tail end 350mm；Described
Back timber constitutes 135 degree of angles with caving shield；Described guiding beam length 300mm, wide 125mm, it is total that planing surface and mounting bracket are formed
Thickness is 60mm, and described planing surface and the axis of back timber constitute 90-140 degree angles, preferably 135 degree angles；Described slides
140 degree of angles are constituted between the plane and inclined-plane in face.
A kind of light-duty scalable flexible hydraulic shield support as described above, is illustrated further as by three above-mentioned 1-
Light-duty scalable flexible hydraulic shield support described in 10 is spliced into shield support hydraulic control unit group side by side, in shield support hydraulic control
The gap between each light-duty scalable flexible hydraulic shield support in unit group is more than 40mm；Described back timber and caving shield
It is cylinder, plate body or its composition to be provided with attachment means between attachment means between frame, frame, and is consolidated by the device that is connected between frame
It is fixed, make shield support hydraulic control unit group overall for a rigidity, a shield support hydraulic control unit group sets a jack.
Beneficial effects of the present invention are：
The present invention can by shield support the goaf spoil gravity of support beam be decomposed into by connecting rod to top plate
With the support force of bottom plate, caving shield pressure and upper support beam stress is set to offset each other, so that the support for alleviating support is strong
Degree, alleviates support own wt, and the dismounting for working face is brought conveniently.
The present invention is easy to assembly, and back timber and caving shield are connected and composed using leading portion, back segment by attachment means, therefore can
To be carried after disassembling, rear small volume is disassembled, support is solved and goes into the well into the bracket assembled supporting problem of coal-face.
The hydraulic support of the present invention is unpowered or the automatic moving type microlight-type for reaching automatically walk movement supplemented by power
Shield, for lifting Safety of Coal Mine Production and equipment, improves working face extraction rate and provides strong support.
The hydraulic support is divided into many limb structures, and single limb weight is respectively less than 80Kg, and each limb structure can be according to user's needs
And coal seam situation carries out personalized designs, the suitable required connected mode of selection, adaptability is extremely strong.
Main puppet of the inclination angle more than 45 ° that be adapted to of the invention is tilted and half-edge coal seam or even the coal work for having reversing
Face；And suitable for medium-thickness seam and above coal seam, there is certain adaptability to coal seam change；And suitable for being inclined using inclination or puppet
The working face of slope wall type sloping mining approach arrangement；Suitable for the coal seam of roof cracking.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is guide beam structural representation of the present invention.
Fig. 3 back timber leading portions of the present invention and back timber back segment connection diagram.
Fig. 4 is operating diagram of the present invention.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.
The light-duty scalable flexible hydraulic shield support of the present invention is usually three and spliced side by side, then forms one group of shielding
Support hydraulic control unit group, arranges that multigroup shield support hydraulic control unit group collectively forms the branch of coal-face on coal-face
Shield.In order to which multigroup shield support hydraulic control unit group is attached, therefore in back timber bilateral medium position fluting, for mounting bracket
Between connecting plate or connects chain.
The gap between each light-duty scalable flexible hydraulic shield support in one shield support hydraulic control unit group is
40mm；It is cylinder, plate body or its combination that back timber and caving shield, which are provided with attachment means between attachment means between frame, frame, and is passed through
The device that is connected between frame is fixed, and makes shield support hydraulic control unit group overall for a rigidity, therefore, three splice side by side it is light
The scalable flexible hydraulic shield support of type is using a jack.
With reference to Fig. 1, single light-duty scalable flexible hydraulic shield support, by the caving shield 3 in the back timber 2 of epimere, stage casing,
The tail boom 4 of bottom is linked in sequence composition.Back timber makes back beam constitute 135 degree of angles with caving shield by being welded to connect caving shield.
The guide beam 1 for being slided on coal face top plate is additionally provided with the front end of back timber.Caving shield is hinged with tail boom, and in shielding
Supported between beam arm portion and tail boom arm using jack 7, with being provided with hinge seat in the middle part of tail boom in the middle part of caving shield, for even
Connect the hinge seat in the middle part of jack two ends, caving shield to be arranged on away from shielding tail beam 350mm, the hinge seat in the middle part of tail boom is set
At away from tail boom tail end 350mm.
Back timber, caving shield, tail boom are tubular structure, are fastened and formed by least two pieces arcs, and setting adds in pipe
Strengthening tendons plate 10.Caving shield is provided with limited block with tail boom in hinged place, for limiting the flip angle between caving shield and tail boom
Degree, described limited block is two blocks, caving shield and hinged place on tail boom is separately positioned on, when tail boom is relative to caving shield
It is turned to after certain angle, two blocks contact with each other, and can prevent tail boom from excessively being overturn relative to caving shield.
With reference to Fig. 2, guide beam is a slide plate, and guide beam upper surface is planing surface 11, and planing surface back is mounting bracket 12,
Guide beam is movably connected in the axis composition angle of the front end of back timber, planing surface and back timber by mounting bracket；Planing surface is plane,
And inclined-plane is generated in flat front end bending, make planing surface formation ship shape, the edge of planing surface is respectively provided with circular arc chamfering.
Mounting bracket is floor, and is vertically set on planing surface back, floor and sets pin-and-hole, and the front end of back timber is horizontally disposed with
There is bearing pin, bearing pin is vertical with back timber axis, and bearing pin is inserted in the pin-and-hole on floor, planing surface is overturn with respect to back timber.
Planing surface back is arranged with two pieces of floors in parallel, and the front end of back timber is constituted along the axially extended two pieces of risers 12 of back timber sells
Axle bed, bearing pin is each passed through two pieces of floors and two pieces of risers, is directed to beam installed in back timber front end；Floor side is provided with reinforcement
Gusset, is supported to planing surface jointly；Riser lower edge flushes back timber lower edge, and riser top edge is that hypotenuse constitutes riser
Triangle, sets bearing pin at vertex of a triangle.It is oriented to beam length 300mm, wide 125mm, it is total that planing surface and mounting bracket are formed
Thickness is 60mm, planing surface and back timber axis 135 degree of angles of composition；140 degree of folders are constituted between the plane and inclined-plane of planing surface
Angle.
Tail boom length is to select 1250mm；The tail end of tail boom is provided with the piston shoes 8 slided on coal face bottom plate, and piston shoes are
It is arranged on the arcwall face of tail boom bottom.
With reference to Fig. 3, back timber 2 is formed by connecting by back timber leading portion 14 and back timber back segment 15 by attachment means 5, attachment means 5
Concrete structure be：It is coaxially arranged with back timber while penetrate the connecting pin 16 of back timber leading portion and back timber back segment, is provided with spiral shell
Nail is through back timber leading portion side wall and screws in connecting pin；It is provided with the side wall of back timber leading portion and on the side wall of back timber back segment
Projection 17, and socketed projection 17 by screw, back timber leading portion and back timber back segment is closely connected；Caving shield is by caving shield
Leading portion and caving shield back segment are formed by connecting by attachment means.Back timber length is 1450mm, segment length 800cm wherein before back timber, top
Segment length 625mm after beam.
Because back timber or caving shield are formed by connecting using attachment means, thus can set different lengths specification back timber or
Caving shield, such as back timber leading portion or back timber back segment, design the back timber leading portion or back timber back segment of different length, caving shield during manufacture
Equally, the leading portion or back segment of different length are designed, when in use, according to underground situation, back timber needed for freely forming or is covered
Guard beam length, reaches the purpose for adapting to a variety of down-hole coal excavation parameters.
Caving shield is as back timber, using two sections of compositions, the same back timber of attachment structure of caving shield junction.Screen beam length
Segment length is 900mm after 1200mm, wherein caving shield, and segment length is 200mm before caving shield.
Be connected device 6 on back timber, caving shield side wall between setting frame, for attachment means between frame to be fixed；
The device that is connected between frame is U-shaped pin.
The main function of the present invention is to separate in goaf with operating space, stops that spoil is poured in, attended operation space peace
Entirely, shielding effect is played；Certainly, carried out by top plate self-supporting, rib support, bottom plate self-supporting, goaf spoil and the present invention
Combine in the stress system constructed by support, the present invention only serves Auxiliary support effect.The shield support of the present invention is a kind of nothing
Power or the automatic moving type microlight-type shield supplemented by power, for lifting Safety of Coal Mine Production and equipment, are improved
Working face extraction rate provides strong support.Especially by optimization design, the hydraulic support is divided into many limb structures, single limb weight
Amount is respectively less than 80Kg, and each limb structure can be needed according to user and coal seam situation carries out personalized designs, needed for selection is suitable
Connected mode, adaptability is extremely strong.
Basic parameter of the present invention：
Guide beam main function is the effective contact and support for ensureing back timber front end and top plate, except meet certain rigidity and
Outside intensity, it can also be prevented effectively from and some retardation occur because of the uneven and fluctuations of top plate, it is ensured that effectively slide.
Back timber is the direct load bearing component of supporting roof, and provides tie-point for tail boom, caving shield and shield ejection device.It is required that
With certain strength and stiffness, contact area is big, and adapts to the change of roof pressure.Back timber is as uniform as possible with top plate
Contact, it is to avoid because locally connect top and caused by back timber concentrate stand under load, damage support other components.Back timber is designed to two arc tube spellings
Weldering, upper and lower cover plates are sealed to form circular arc case structure, and reinforcement is provided between the rigidity of its structure, upper and lower cover plates in order to strengthen
Plate；Back timber front end is in skid shape, guide beam is connected, to reduce the moving resistance between back timber and top plate；This beam may be designed as multistage
Structure, so that independent assortment adjusts its length.
Caving shield requirement has higher intensity and torsional strength, its level weld seam requirement high standard, tight requirement, in order to avoid snap.
Caving shield is same with back timber to be welded into circular arc box structure using two arc tubes, upper and lower cover plates sealing；Caving shield and back timber it
Between be connected with four kinds of modes：(1) form an angle welding；(2) fixed in caving shield close to bending part using grafting and with bearing pin；
(3) bending part of caving shield and back timber is fixed using pin；(4) being hinged with back timber bending part in caving shield and install jack additional is used for
Adjust two beam angles.Employing mode (2), (3), the advantage of (4) mode are the removable de-assembly of two beams, are readily transported and scene peace
Dress.
Tail boom and caving shield, back timber are same using overall box structure, are formed with arc tube welding.Tail boom is cut with scissors with caving shield
Connect and jack is installed, for making tail boom be swung in certain scope.The lower end of tail boom connects with bottom plate, for ease of sliding tail
Beam end uses piston shoes.The main function of tail boom includes：
(1) by adjusting the angle of tail boom and caving shield to adapt to the change of coal seam thickness；
(2) by the swing of tail boom, rear portion machinery can be achieved and puts coal.
(3) adjustable support running status and when support operation is by jam or operation difficult, driving arm movement.
Being connected substantially between shield support hydraulic control unit group has three kinds of modes：(1) steel wire rope is connected, back timber and caving shield
Each twice, by many pack supports of whole steel wire rope series winding being arranged on the inside of support, are fixed per pack support by rope locking machine, meanwhile,
Fore-set or supporting plate are accordingly set in company with ropeway number between adjacent shield support hydraulic control unit group, to avoid stinging frame.(2) connect
Plate is connected, and is respectively articulated with by hole connecting plate with adjacent stent.Articulated manner has to be connect and pin joint two vertical with beam with Liangping marketing
Kind, its advantage and disadvantage is that parallel pin joint can obtain larger drop and turnover in vertical direction；Vertical pin joint can be obtained in parallel direction
Larger displacement and turnover.Connecting plate connection road number, which is generally on back timber twice, caving shield, is aided with one to the connection of twice steel wire rope.
(3) chain is connected.Back timber twice, caving shield together, at least same phase is connected between adjacent two frame according to frame spacing using ring chain
Supporting plate should be set to avoid stinging frame.From flexible angle, chain (chain link) connection is optimal one kind.
The hydraulic system of this support, is made up of emulsion power pack, main feed tube, tail boom jack and Hydraulic Elements.Take
Centralized control, working face lays feed liquor and returns two high-pressure rubber pipe main lines of liquid, two main lines and operation valve phase on support
Even, emulsion realizes pillar lifting and tail boom jack from emulsion power pack via main feed tube to working face by operation valve
Action, to adjust action of the present invention, realizes coal winning technology.The inner side of the present invention sets operation valve mounting bracket 9, the operation of jack
Valve is arranged on operation valve mounting bracket 9, controls that the reversible lock of pressurize is housed on lifting action, jack, it is ensured that provide to tail boom
Enough support forces.
With reference to Fig. 4, it is seen that operation principle of the invention：So that working face puppet is in tilted layout step exploitation as an example, edge of the present invention
Top plate arranges that one end is supported by guide beam patch top plate 19, and the other end is propped up on the base plate 20 by tail boom, forms two of support
Most basic fulcrum；Excavated with the propulsion of coal-face rib 21, the lower fulcrum (tail boom piston shoes 8) of support loses support,
Realize and move down under the pushing of goaf spoil 18 and gravity double action itself；Then the coal of cleaning exploitation avalanche, is used
Jack, which is adjusted support state and laid equal stress on, to be newly supported, and completes an actuation cycle mining sequence.
Using in the coal seam of high-dipping, the characteristics of present invention possesses following：
It is flexible fabulous：Connected between support using hinge (chain link), realize support has certain position in any direction
Shifting amount, i.e., so-called " universal " structure.
It is safe and efficient：All supports of working face are linked as entirety by bindiny mechanism's flexibility.Support is not toppled over, it is not twisted,
Move during frame, with significant globality and stability；Each beam be Integral box structure, all single group support spacing 40mm,
Screen area up to more than 95 percent, realize the totally-enclosed shielding to operating space.While support is with the advance of the face,
Pushed by goaf spoil and support self gravitation realizes automatic shifting frame, without manual operation, realized essential safety, save
The energy and cost.
Adaptability is preferable：Connection upset jack, swing tail beam is controlled by jack between tail boom and caving shield, you can
Coal Seam Thickness Change is adapted to a certain extent, beneficial to side can put coal when bellying again；Aided in simultaneously on back timberExternal poured hydraulic pressure single-column orExternal poured bidirectional hydraulic pillar, available for adjustment support state；Support institute
The guide beam of connection, in skid shape, adapts to the change of top plate.
Lightness, applicability are with the obvious advantage：One is that back timber is designed into the integral top beam that double-pin type is mechanically connected, as many
Limb package assembly mode, with simple in construction, small volume, it is lightweight, move that frame is flexible, easy care is easy to operate, is easy to dismount and transports
It is defeated, maintenance cost reduction.Two be that rack body skeleton all uses seamless steel pipe, and intensity is high, light weight, alleviates workman behaviour
Labor intensity in work, handling process, improves safety coefficient, reduces security risk.Three be using scope is wide, applicability
By force, differential profiles can be selected according to different use environments and mining height, is designed as multistage, the assembling of many limbs, realizes Application of composite, protect
The popularity used is demonstrate,proved.
Above-mentioned embodiment is used for illustrating the present invention, rather than limits the invention, in the spirit of the present invention
In scope of the claims, any modifications and changes made to the present invention both fall within protection scope of the present invention.
Claims (10)
1. a kind of light-duty scalable flexible hydraulic shield support, by the back timber of epimere, the caving shield in stage casing, bottom tail boom order
Connect and compose, it is characterised in that the guide beam for being slided on coal face top plate is additionally provided with the front end of back timber, it is described
Guide beam is a slide plate, and guide beam upper surface is planing surface, and planing surface back is mounting bracket, and guide beam passes through mounting bracket activity
It is connected to the axis composition angle of the front end of back timber, planing surface and back timber；Described caving shield is hinged with tail boom, and in caving shield
Very heavy top support is used between arm and tail boom arm；The tail end of tail boom is provided with the piston shoes slided on coal face bottom plate.
2. light-duty scalable flexible hydraulic shield support as claimed in claim 1 a kind of, it is characterised in that described back timber by
Back timber leading portion and back timber back segment are formed by connecting, and the connecting pin for penetrating back timber leading portion and back timber back segment is coaxially arranged with back timber,
Screw is provided with through back timber leading portion side wall and is screwed in connecting pin；On the side wall of back timber leading portion and on the side wall of back timber back segment
Projection is provided with, and is socketed projection by screw, back timber leading portion and back timber back segment is closely connected；Described shielding
Beam is formed by connecting by caving shield leading portion and caving shield back segment by attachment means.
3. a kind of light-duty scalable flexible hydraulic shield support as claimed in claim 1, it is characterised in that described guide beam
Planing surface be plane, and flat front end bending generate inclined-plane, make planing surface formation ship shape, the edge of planing surface is respectively provided with circle
Arc chamfering；Described mounting bracket is floor, and is vertically set on planing surface back, floor and sets pin-and-hole, the front end water of back timber
Flat to be provided with bearing pin, bearing pin is vertical with back timber axis, and bearing pin is inserted in the pin-and-hole on floor, planing surface is turned over respect to back timber
Turn.
4. a kind of light-duty scalable flexible hydraulic shield support as claimed in claim 3, it is characterised in that described planing surface
Back is arranged with two pieces of floors in parallel, and the front end of described back timber constitutes axis pin base, bearing pin along the axially extended two pieces of risers of back timber
Two pieces of floors and two pieces of risers are each passed through, beam are directed to installed in back timber front end；Floor side is provided with stiffener plate, jointly
Planing surface is supported；The riser lower edge flushes back timber lower edge, and riser top edge is hypotenuse, riser is constituted triangle
Shape, sets bearing pin at vertex of a triangle.
5. a kind of light-duty scalable flexible hydraulic shield support as claimed in claim 1, it is characterised in that in back timber, shielding
Be connected device on Liang Cebi between setting frame, for attachment means between frame to be fixed；The device that is connected between frame is U-shaped
Pin.
6. light-duty scalable flexible hydraulic shield support as claimed in claim 1 a kind of, it is characterised in that described back timber,
Caving shield, tail boom are tubular structure, are fastened and formed by least two pieces arcs；And stiffener plate is set in pipe；Back timber leads to
Cross and be welded to connect caving shield.
7. a kind of light-duty scalable flexible hydraulic shield support as claimed in claim 1, it is characterised in that described caving shield
Limited block is provided with hinged place with tail boom, for limiting the flip angle between caving shield and tail boom；Described caving shield
Middle part in the middle part of tail boom with being provided with hinge seat, for connecting jack two ends.
8. light-duty scalable flexible hydraulic shield support as claimed in claim 1 a kind of, it is characterised in that described piston shoes are
It is arranged on the arcwall face of tail boom bottom.
9. a kind of light-duty scalable flexible hydraulic shield support as claimed in claim 1, it is characterised in that described tail boom is long
Spend for 1100-1400mm, preferably 1250mm；Described shielding beam length is 1000-1400mm, preferably 1200mm, wherein screening
Segment length is 900mm after beam, and segment length is 200mm before caving shield；Described back timber length is 1200-1800mm, preferably
Segment length 600-650mm after segment length 750-850cm, back timber before 1450mm, wherein back timber；Hinge seat in the middle part of described caving shield is set
Put at away from shielding tail beam 350mm, the hinge seat in the middle part of described tail boom is arranged on away from tail boom tail end 350mm；Described
Back timber constitutes 135 degree of angles with caving shield；Described guiding beam length 300mm, wide 125mm, it is total that planing surface and mounting bracket are formed
Thickness is 60mm, and described planing surface and the axis of back timber constitute 90-140 degree angles, preferably 135 degree angles；Described slides
140 degree of angles are constituted between the plane and inclined-plane in face.
10. a kind of light-duty scalable flexible hydraulic shield support as described in claim 1-10, it is characterised in that on three
State the light-duty scalable flexible hydraulic shield support described in 1-10 and be spliced into shield support hydraulic control unit group side by side, in shield support
The gap between each light-duty scalable flexible hydraulic shield support in hydraulic control unit group is more than 40mm；Described back timber is with covering
It is cylinder, plate body or its composition that guard beam, which is provided with attachment means between attachment means between frame, frame, and passes through the dress that is connected between frame
Fixation is put, makes shield support hydraulic control unit group overall for a rigidity, a shield support hydraulic control unit group setting one is very heavy
Top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499217.5A CN107313795A (en) | 2017-06-27 | 2017-06-27 | A kind of light-duty scalable flexible hydraulic shield support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499217.5A CN107313795A (en) | 2017-06-27 | 2017-06-27 | A kind of light-duty scalable flexible hydraulic shield support |
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| Publication Number | Publication Date |
|---|---|
| CN107313795A true CN107313795A (en) | 2017-11-03 |
Family
ID=60179490
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710499217.5A Pending CN107313795A (en) | 2017-06-27 | 2017-06-27 | A kind of light-duty scalable flexible hydraulic shield support |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107939424A (en) * | 2017-11-17 | 2018-04-20 | 山东东山矿业有限责任公司株柏煤矿 | High-dipping medium-thickness seam flexible type shield |
| CN108625853A (en) * | 2018-04-24 | 2018-10-09 | 山东东山矿业有限责任公司株柏煤矿 | A kind of flexible type shield coal-mining method of half-edge coal seam |
| CN115680739A (en) * | 2022-11-16 | 2023-02-03 | 甘肃省地质矿产集团有限公司 | Multi-point supporting hydraulic equipment for earthen site erosion area for cultural relic protection engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107939424A (en) * | 2017-11-17 | 2018-04-20 | 山东东山矿业有限责任公司株柏煤矿 | High-dipping medium-thickness seam flexible type shield |
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| CN108625853B (en) * | 2018-04-24 | 2020-01-07 | 山东东山矿业有限责任公司株柏煤矿 | Flexible shield support coal mining method for steep coal seam |
| CN115680739A (en) * | 2022-11-16 | 2023-02-03 | 甘肃省地质矿产集团有限公司 | Multi-point supporting hydraulic equipment for earthen site erosion area for cultural relic protection engineering |
| CN115680739B (en) * | 2022-11-16 | 2024-03-29 | 甘肃省地质矿产集团有限公司 | Multi-point supporting hydraulic equipment for earthen site undercut area for cultural relic protection engineering |
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