CN109695465A - Hydraulic device for sublevel caving hydrau lic support - Google Patents
Hydraulic device for sublevel caving hydrau lic support Download PDFInfo
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- CN109695465A CN109695465A CN201811483174.2A CN201811483174A CN109695465A CN 109695465 A CN109695465 A CN 109695465A CN 201811483174 A CN201811483174 A CN 201811483174A CN 109695465 A CN109695465 A CN 109695465A
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- valve
- jack
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- hydraulic
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- 238000005507 spraying Methods 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 239000007921 spray Substances 0.000 claims abstract description 32
- 239000000839 emulsion Substances 0.000 claims abstract description 11
- 239000003245 coal Substances 0.000 claims description 25
- 230000002441 reversible effect Effects 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000001256 tonic effect Effects 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005065 mining Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- 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
- E21D23/26—Hydraulic or pneumatic control
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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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)
- Nozzles (AREA)
Abstract
The invention discloses a kind of hydraulic devices for sublevel caving hydrau lic support, include bracket spray dust-reducing system, bracket function of tonic chord liquid-supplying system；It also include emulsion power pack, the bracket function of tonic chord liquid-supplying system includes time liquid interface of big flow liquid feeding pipeline, main feed liquor/main liquid back pipe road, the main feed liquor of secondary electric-hydraulic control reversing valve/main liquid back pipe road, main manipulation valve and secondary manipulation valve.The bracket spray dust-reducing system includes: preceding spraying device, rear spraying device.Compared with prior art, at low cost the beneficial effects of the present invention are: first is that the configuration of the present invention is simple, easy to make；Second is that underground is safeguarded and replaced conveniently, labour productive forces have been liberated.
Description
Technical field
The present invention relates to coal mine heading equipment hydraulic technique application fields, are used for Sub-Level Caving branch more specifically to one kind
The hydraulic device of frame.
Background technique
Safe, fast, efficient ground digging laneway is the prerequisite of coal production, and guarantees that coal mine excavation is normally connected
Necessary condition.In coal mine excavation work field of mechanical technique, hydraulic support is to guarantee the normal pushing and sliding of bracket and try to stop people from fighting each other, and is realized
The important device of working face normal circulation.The citation form of coal mine heading equipment hydraulic support has hydraulic chock-shield support, shielding
Formula hydraulic support, standing shield hydraulic support.The specifications and models of hydraulic support have shield, sublevel caving hydrau lic support, crawler belt
Walking prop, transition bracket.The hydraulic system of sublevel caving hydrau lic support, generally by emulsion power pack, main inlet tube, main liquid back pipe,
Atomizer passgae, various hydraulic standard components, column and various uses jack composition.Maneuverability pattern use electrichydraulic control, pipeline it
Between connection type, connected using quick coupling with U-shaped card and O-ring seals, it is convenient for disassembly and assembly.Hydraulic dress for sublevel caving hydrau lic support
The effect for setting side guard plate is: eliminating gap between the frame of adjacent stent, prevents caved gangue from entering support space；It is moved as bracket
Guide plate during frame；Prevent bracket backwardness from toppling over；Adjust the spacing of bracket.Top beam action be: for supporting, control,
The pressure of top plate above management work face, top plate is transmitted in two root posts by top beam.Flexible beam action is: advanced branch
Shield does not move the stretching of frame front stretching beam, protects top plate, immediate support may be implemented after coalcutter is adopted, it is usually by steel
The overall structure that plate is welded into.Shielding beam action is: bearing the torque and moment of flexure that top beam passes over.The effect of column is:
Bear the main pressure of top plate, generally double reduction structures.The effect of wall supporting device is: preventing coal wall caving, or in wall caving
Play the role of masking hair baffle, avoids injuring staff or damage equipment by a crashing object.
The coal dust of top-coal caving face is more much bigger than common working face, in addition to the coal dust generated during coalcutter coal cutting
In addition, a large amount of coal dust can all be generated during moving frame and Sub-Level Caving.The dustiness of fully mechanized coal face is more than security personnel at present
The index of regulation, it has also become restrict the significant obstacle of coal caving mining method development, dust-proof working is especially important.Top-coal caving face
Dust-proof emphasis is to reduce coal dust amount, and generally use following measures: first is that coal seam fills the water in advance, i.e., first advance is right in crossheading
Coal body is filled the water in advance.The dirt second is that water spray goes out, i.e., have spray sprinkler device on bracket, when coalcutter cuts coal, shifting frame or puts
Watering dust extinguishing is carried out when top coal.
It is all according to sublevel caving hydrau lic support structure and mating to want when designing sublevel caving hydrau lic support in practical coal production field
Reasonable selection hydraulic system is sought, and fully ensures that the hydraulic device for sublevel caving hydrau lic support to working face condition and matched adaptation
Property.Hydraulic support is in fully-mechanized mining working use process, and such as matched coalcutter, scrapper conveyor change, can direct shadow
Set cap, extensible canopy and caving shield are rung, is had a great impact to supporting and top plate.Defect of the existing technology is: first is that
Original hydraulic device structure for sublevel caving hydrau lic support is complicated, and cost of manufacture is high；Second is that underground is not easy to be safeguarded and be replaced.
Using technical solution of the present invention, can solve described above for the hydraulic device of sublevel caving hydrau lic support, maintenance and more
Change practical problem difficult, that cost of manufacture is high.
Therefore, it designs a kind of hydraulic device for sublevel caving hydrau lic support and carrys out overcome the deficiencies in the prior art, just seeming has very much
It is necessary.
Based on existing technical problem, technical characteristic and technical effect, application technical solution of the invention is proposed.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a kind of for the hydraulic of sublevel caving hydrau lic support
Device, it is therefore an objective to solve the hydraulic device maintenance described above for sublevel caving hydrau lic support and replace reality difficult, that cost of manufacture is high
Border problem.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of hydraulic device for sublevel caving hydrau lic support includes bracket spray dust-reducing system, bracket function of tonic chord liquid-supplying system；Also
It include emulsion power pack.
The present invention devises, and the bracket function of tonic chord liquid-supplying system includes big flow liquid feeding pipeline, main feed liquor/lead back liquid
Pipeline, the main feed liquor of secondary electric-hydraulic control reversing valve/main liquid back pipe road, main manipulation valve and the secondary time liquid interface for manipulating valve.
The present invention devises, and the main feed liquor/main liquid back pipe road includes try to stop people from fighting each other delivery outlet, pushing and sliding outlet, liter front column
Delivery outlet rises rear column delivery outlet, drop front column delivery outlet, drop rear column delivery outlet, stretches side shield delivery outlet, receives side shield output
Mouthful, stretch lift bottom delivery outlet, preceding spraying delivery outlet, stretch front-axle beam delivery outlet, receive front-axle beam delivery outlet, stretching that wall supporting delivery outlet, to receive wall supporting defeated
Outlet, extensible canopy delivery outlet, receive flexible delivery outlet, stretch before adjust adjust frame delivery outlet before frame delivery outlet, receipts, stretch before adjust frame delivery outlet,
Frame delivery outlet is adjusted before receiving.
The present invention devises, and the main feed liquor/main liquid back pipe road electrichydraulic control effect is as follows:
E1 is divided into two-way to try to stop people from fighting each other delivery outlet through threeway (KJ19): leading to by pushing one-way lock (FDYT400/50) push away all the way
The cavity of resorption of jack is moved, another way leads to the epicoele of telescopic jack.
E2 is pushing and sliding outlet, by pushing one-way lock (FDYT400/50), leads to the epicoele of advancing jack, passage is unidirectional
It locks and safety valve (FA400/50) is installed.
E3 is to rise front column delivery outlet pipeline is divided into three tunnels through 2 threeways (KJ19), is stood before wherein two-way is 2 straight-through
The setting prop mouth of column pilot operated valve device, realizes the promotion of support height；Another way leads to the epicoele of carried bottom jack.
E4 is to rise a rear column delivery outlet, and pipeline is divided into two-way through threeway (KJ19), respectively to 2 rear column pilot operated valve devices
Setting prop mouth.The purpose of this design is: realizing the promotion of support height.Safety valve (FA250/ is housed in column pilot operated valve device
50).
E5 is drop front column delivery outlet, pipeline is divided into two-way through threeway (KJ19), respectively to 2 rear column pilot operated valve devices
Drop column mouth.
E6 is drop rear column delivery outlet, pipeline is divided into two-way through threeway (KJ19), respectively to 2 rear column pilot operated valve devices
Drop column mouth.
E7 is to stretch side to protect delivery outlet, passes to the cavity of resorption that side pushes away jack through ball valve (QJB10), one-way lock, three.
E8 is to receive side to protect delivery outlet, passes to the epicoele that side pushes away jack through three.
E9 is to stretch lift bottom delivery outlet, leads directly to the cavity of resorption of carried bottom jack.
E10 is preceding spraying delivery outlet, leads directly to the control interface of single action water spray valve.
E11 is to stretch front-axle beam delivery outlet, by hydraulic control one-way valve (FDY100/50), reaches the cavity of resorption of front-axle beam jack, single
Safety valve (FA125/50) is housed on valve.
E12 is to receive front-axle beam delivery outlet, by hydraulic control one-way valve (FDY100/50), reaches the epicoele of front-axle beam jack.
E13 is to stretch wall supporting delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the cavity of resorption of wall supporting jack, single
Safety valve (FA125/50) is housed on valve.
E14 is to receive wall supporting delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the epicoele of wall supporting jack.
E15 reaches the cavity of resorption of telescopic jack by hydraulic control reversible lock (FDS125/50) for extensible canopy delivery outlet, single
Safety valve (FA125/50) is housed on valve.
E16 is to receive flexible delivery outlet to reach the epicoele of telescopic jack by hydraulic control reversible lock (FDS125/50).
E17 is to adjust frame delivery outlet before stretching, and by hydraulic control reversible lock (FDS125/50), is adjusted under frame jack before reaching
Chamber.
E18 is to adjust frame delivery outlet before receiving, and by hydraulic control reversible lock (FDS125/50), adjusts the upper of frame jack before reaching
Chamber.
E19 is to adjust frame delivery outlet before stretching, and by hydraulic control reversible lock (FDS125/50), is adjusted under frame jack after arrival
Chamber.
E20 is to adjust frame delivery outlet before receiving, and by hydraulic control reversible lock (FDS125/50), the epicoele of frame jack is adjusted after arrival.
The present invention devises, and the main feed liquor of the pair electric-hydraulic control reversing valve/main liquid back pipe road includes: for a liter tail boom output
Mouthful, by tail boom delivery outlet, stretch plate delivery outlet, receive plate delivery outlet, be sprayed delivery outlet afterwards, slip delivery outlet after drawing.
The present invention devises, and the main feed liquor of the pair electric-hydraulic control reversing valve/main liquid back pipe road electrichydraulic control function is as follows:
F1 is to rise tail boom delivery outlet, through threeway, divides to 2 fluid-control one-ways and locks (FDY100/50), then arrive separately at two tail booms
The cavity of resorption of jack is equipped with safety valve (FA125/50) on check valve.
F2 is through 2 threeways, to divide to 2 fluid-control one-ways and lock (FDY100/50), reach two tail booms tail boom delivery outlet
In addition the epicoele of jack divides to alternately check valve all the way, reaches the epicoele of plate jack.
F3 is to stretch plate delivery outlet, is reached under two plate jack through hydraulic control one-way valve (FDY100/50), threeway
Chamber.
F4 mouthfuls reach two plate jack to receive plate delivery outlet, through hydraulic control one-way valve (FDY100/50), threeway
Epicoele.
F5 spraying delivery outlet after being, spraying single action water spray valve after leading directly to.
F6 is to slip delivery outlet after drawing, and the epicoele of jack is slipped after straight-through drawing.
The present invention devises, and the bracket spray dust-reducing system includes: preceding spraying device, rear spraying device,
Spray water pipeline under being drawn first by ground reaches spraying filter (GLQ100/10/80), through three through ball valve (QJ10)
Logical (KJ10) is divided to two-way to reach two single action water spray valves.
One of them is preceding spraying device, and the E10 function mouth of main manipulation valve leads directly to the control mouth of the water injection valve, and delivery outlet connects
Access valve reaches the injection spray pipe on set cap.
Another is rear spraying device, and the E5 function mouth of pair manipulation valve leads directly to the control mouth of the water injection valve, and delivery outlet is straight
Up to the injection spray pipe of bracket rear portion tail boom.
The present invention devises, and the hydraulic device M maneuverability pattern for sublevel caving hydrau lic support uses electrichydraulic control.
The present invention devises, connection type between the hydraulic device M pipeline for sublevel caving hydrau lic support, using fast quick access
Head is connected with U-shaped card and O-ring seals, convenient for disassembly and assembly.
Due to devising, the bracket spray dust-reducing system, bracket function of tonic chord liquid-supplying system；It also include emulsion pump
It stands, when realizing bracket liter column, carried bottom jack recycles automatically, it avoids making mistakes because of worker operation, caused carried bottom jack
Damage.Safety valve (FA250/50) is housed in column pilot operated valve device, protects column, avoids because roof pressure is excessive, caused column
Damage；It realizes bracket and tries to stop people from fighting each other and receive the linkage of extensible canopy；Realize the decline of support height；Realize bracket front-axle beam upper pendulum and
The bottom；Gap adjusts between realizing the frame of bracket front and rear；When realizing bracket liter column, the automatic of carried bottom jack is returned
It receives；Realize the upper pendulum and the bottom of bracket face guard；Realize the electrichydraulic control to preceding spraying system；It meets for Sub-Level Caving
The functional requirement of the hydraulic device of bracket.
In the technical scheme, respectively arranged bracket spray dust-reducing system, bracket function of tonic chord liquid-supplying system；Also include
Emulsion power pack, it is the present invention that composition one, which is used for the hydraulic device of sublevel caving hydrau lic support, and the electrichydraulic control to preceding spraying system,
Important technology feature, based in coal mine heading equipment hydraulic technique application field, having novelty, creativeness and practical
Property, term in the technical scheme is all that can be explained and be understood with patent document in the art.
Compared with prior art, the beneficial effects of the present invention are:
First is that the configuration of the present invention is simple, easy to make, it is at low cost；
Second is that underground is safeguarded and replaced conveniently, labour productive forces have been liberated.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is system block diagram of the present invention for the hydraulic device embodiment of sublevel caving hydrau lic support.
Fig. 2 is structure principle chart of the present invention for the hydraulic device embodiment of sublevel caving hydrau lic support.
In figure:
M- is used for the hydraulic device A- bracket spray dust-reducing system B- bracket function of tonic chord liquid-supplying system of sublevel caving hydrau lic support
The main feed liquor of spraying device B1- big flow liquid feeding pipeline B2-/main liquid back pipe road after spraying device A2- before A1-
Time liquid interface of the main manipulation valve of the main feed liquor of B3- pair electric-hydraulic control reversing valve/main liquid back pipe road B4- and secondary manipulation valve
It is a liter front column delivery outlet that E1-, which is pushing and sliding outlet E3- for the delivery outlet E2- that tries to stop people from fighting each other,
E4- be a liter rear column delivery outlet E5- be drop front column delivery outlet E6- be drop rear column delivery outlet
E7- is to receive side shield delivery outlet E9- to lift bottom delivery outlet to stretch to stretch side to protect delivery outlet E8-
E10- is sprayed delivery outlet E11- to stretch front-axle beam delivery outlet E12- before being be to receive front-axle beam delivery outlet
E13- be stretch wall supporting delivery outlet E14- be receive wall supporting delivery outlet E15- be stretch extensible canopy delivery outlet
E16- be receive flexible delivery outlet E17- be stretch before adjust frame delivery outlet E18- be receive before adjust frame delivery outlet
E19- is that tune frame delivery outlet E20- is that tune frame delivery outlet F1- is a liter tail boom delivery outlet before receiving before stretching
F2- be by tail boom delivery outlet F3- be stretch plate delivery outlet F4- be receive plate delivery outlet
F5- is sprayed delivery outlet F6- after being be to slip delivery outlet after drawing
11- advancing jack 12- telescopic jack 13- front column
The side 14- carried bottom jack 15- rear column 16- pushes away jack
Frame jack is adjusted before 17- front-axle beam jack 18- wall supporting jack 19-
Frame jack 21- tail boom jack 22- plate jack is adjusted after 20-
23- slips jack 24- caving shield side guard plate jack 25- emulsion power pack after drawing
Specific embodiment:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clearly and completely
Description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 1 is system block diagram of the present invention for the hydraulic device embodiment of sublevel caving hydrau lic support, and Fig. 2 is used for for the present invention
The structure principle chart of the hydraulic device embodiment of sublevel caving hydrau lic support.
The embodiment of the present invention is illustrated now in conjunction with attached drawing.
A kind of hydraulic device for sublevel caving hydrau lic support includes bracket spray dust-reducing system A, bracket function of tonic chord feed flow system
Unite B；It also include emulsion power pack 25.The purpose of this design is: first is that the configuration of the present invention is simple, easy to make, cost
It is low；Second is that underground is safeguarded and replaced conveniently, labour productive forces have been liberated.
The present invention devises, and the bracket function of tonic chord liquid-supplying system B includes big flow liquid feeding pipeline B1, main feed liquor/master
Liquid back pipe road B2, the main feed liquor of secondary electric-hydraulic control reversing valve/main liquid back pipe road B3, main manipulation valve and the secondary time liquid interface B4 for manipulating valve.
The present invention devises, and the main feed liquor/main liquid back pipe road B2 includes try to stop people from fighting each other delivery outlet E1, pushing and sliding outlet E2, liter
Front column delivery outlet E3, it rises rear column delivery outlet, drop front column delivery outlet E5, drop rear column delivery outlet E6, stretch side shield delivery outlet
E7, side shield delivery outlet E8 is received, lift bottom delivery outlet E9 is stretched, preceding spraying delivery outlet E10, stretches front-axle beam delivery outlet E11, receives front-axle beam delivery outlet
E12, wall supporting delivery outlet E13 is stretched, wall supporting delivery outlet E14, extensible canopy delivery outlet E15 is received, receives flexible delivery outlet E16, stretches preceding tune frame
Frame delivery outlet E20 is adjusted before tune frame delivery outlet E19, receipts before adjusting frame delivery outlet E18 before delivery outlet E17, receipts, stretching.
The present invention devises, and the main feed liquor/main liquid back pipe road B2 electrichydraulic control function is as follows:
E1 is divided into two-way to try to stop people from fighting each other delivery outlet through threeway (KJ19): leading to by pushing one-way lock (FDYT400/50) push away all the way
The cavity of resorption of jack 11 is moved, another way leads to the epicoele of telescopic jack 12.The purpose of this design is: realizing that bracket is tried to stop people from fighting each other
The linkage for receiving extensible canopy is avoided because of worker's maloperation, and caused telescopic jack 12 is damaged.
E2 is pushing and sliding outlet, by pushing one-way lock (FDYT400/50), leads to the epicoele of advancing jack 11, passage is single
Safety valve (FA400/50) is installed to locking.The purpose of this design is: realizing that bracket to being pushed forward forward scraper machine, and is prevented
Only it is retreated.
E3 is to rise front column delivery outlet pipeline is divided into three tunnels through 2 threeways (KJ19), is stood before wherein two-way is 2 straight-through
The setting prop mouth of 13 pilot operated valve device of column, realizes the promotion of support height.Another way leads to the epicoele of carried bottom jack 14.The mesh designed in this way
Be: realize bracket rise column when, carried bottom jack 14 automatically recycle, avoid because worker operation make mistakes, caused lift bottom thousand
14 damage of jin top.Safety valve (FA250/50) is housed in column pilot operated valve device, protects column, avoids causing because roof pressure is excessive
Column damage.
E4 is to rise rear column delivery outlet, pipeline is divided into two-way through threeway (KJ19), respectively to 2 15 pilot operated valve devices of rear column
Setting prop mouth.The purpose of this design is: realizing the promotion of support height.Safety valve (FA250/ is housed in column pilot operated valve device
50) column, is protected, is avoided because roof pressure is excessive, caused column damage.
E5 is drop front column delivery outlet, pipeline is divided into two-way through threeway (KJ19), respectively to 2 15 hydraulic controls of rear column
The drop column mouth of valve.The purpose of this design is: realizing the decline of support height.
E6 is drop rear column delivery outlet, pipeline is divided into two-way through threeway (KJ19), respectively to 2 15 hydraulic controls of rear column
The drop column mouth of valve.The purpose of this design is: realizing the decline of support height.
E7 is to stretch side to protect delivery outlet, passes to the cavity of resorption that side pushes away jack 16 through ball valve (QJB10), one-way lock, three.Bracket
The stretching of side guard plate avoids coal breakage from hurting sb.'s feelings the purpose of this design is: realizing the covering in gap between bracket.
E8 is to receive side to protect delivery outlet, passes to the epicoele that side pushes away jack 16 through three.The purpose of this design is: realizing
The recycling of the top beam and caving shield side guard plate of hydraulic support.
E9 is to stretch lift bottom delivery outlet, leads directly to the cavity of resorption of carried bottom jack 14, is propping up the purpose of this design is: realizing
Before frame is tried to stop people from fighting each other, pan frontward end is lifted, reduces resistance of trying to stop people from fighting each other.
E10 is preceding spraying delivery outlet, leads directly to the control interface of single action water spray valve, the purpose of this design is: realizing
Electrichydraulic control to preceding spraying system.
E11 is to stretch front-axle beam delivery outlet, by hydraulic control one-way valve (FDY100/50), reaches the cavity of resorption of front-axle beam jack 17,
Safety valve (FA125/50) is housed on check valve.The purpose of this design is: realizing the upper pendulum of bracket front-axle beam, while there is safety
Valve protection avoids the damage for leading to jack because roof pressure is excessive.
To receive front-axle beam delivery outlet E12, by hydraulic control one-way valve (FDY100/50), the epicoele of front-axle beam jack 17 is reached,
The purpose of this design is: realizing the bottom of bracket front-axle beam.
E13 is to stretch wall supporting delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the cavity of resorption of wall supporting jack 18,
Safety valve (FA125/50) is housed on check valve.The purpose of this design is: realizing the upper pendulum of bracket face guard, gib
Top plate, while having safe valve protection, avoid the damage for leading to wall supporting jack 18 because roof pressure is excessive.
E14 is to receive wall supporting delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the epicoele of wall supporting jack 18,
The purpose of this design is: realizing the bottom of face guard, when mining, coal mining space is provided for coalcutter.
E15 is extensible canopy delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the cavity of resorption of telescopic jack 12,
Safety valve (FA125/50) is housed on check valve.The purpose of this design is: realizing the extension of bracket extensible canopy, drawn in bracket
Before frame, the exposed top plate of gib, while having safe valve protection, resistance is excessive when avoiding because trying to stop people from fighting each other leads to telescopic jack 12
Damage.
E16 is to receive flexible delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the epicoele of telescopic jack 12,
The purpose of this design is: realizing the recycling of extensible canopy, when mining, coal mining space is provided for coalcutter.
E17 is to adjust frame delivery outlet before stretching, and by hydraulic control reversible lock (FDS125/50), is adjusted under frame jack 19 before reaching
Chamber.
E18 is to adjust frame delivery outlet before receiving, and by hydraulic control reversible lock (FDS125/50), adjusts the upper of frame jack 19 before reaching
Chamber, the purpose of this design is: gap adjusts between the frame of realization bracket front.
E19 is to adjust frame delivery outlet before stretching, and by hydraulic control reversible lock (FDS125/50), is adjusted under frame jack 20 after arrival
Chamber.
E20 is to adjust frame delivery outlet before receiving, and by hydraulic control reversible lock (FDS125/50), the upper of frame jack 20 is adjusted after arrival
Chamber, the purpose of this design is: gap adjusts between the frame at realization bracket rear portion.
The present invention devises, and the main feed liquor of the pair electric-hydraulic control reversing valve/main liquid back pipe road B3 includes: for a liter tail boom output
Mouthful F1, by tail boom delivery outlet F2, stretch plate delivery outlet F3, receive plate delivery outlet F4, slip delivery outlet after delivery outlet F5, drawing by spraying afterwards
F6。
The present invention devises, and the main feed liquor of the pair electric-hydraulic control reversing valve/main liquid back pipe road B3 electrichydraulic control function is as follows:
F1 is to rise tail boom delivery outlet, through threeway, divides to 2 fluid-control one-ways and locks (FDY100/50), then arrive separately at two tail booms
The cavity of resorption of jack 21 is equipped with safety valve (FA125/50) on check valve.The purpose of this design is: after realizing Sub-Level Caving
Supporting to rear portion scrapper conveyor, safety valve can protect tail boom jack 21.
F2 is through 2 threeways, to divide to 2 fluid-control one-ways and lock (FDY100/50), reach two tail booms tail boom delivery outlet
In addition the epicoele of jack 21 divides to alternately check valve all the way, reaches the epicoele of plate jack 22.The purpose designed in this way exists
In: realize the recycling of ending beam linkage plate, when Sub-Level Caving, top coal can be snapped down in the scrapper conveyor of rear portion along tail boom.
F3 is to stretch plate delivery outlet, reaches two plate jack 22 through hydraulic control one-way valve (FDY100/50), threeway
Cavity of resorption.The purpose of this design is: the supporting after realizing Sub-Level Caving to rear portion scrapper conveyor.
F4 mouthfuls reach two plate jack 22 to receive plate delivery outlet, through hydraulic control one-way valve (FDY100/50), threeway
Epicoele, the purpose of this design is: realize plate manual recycling.
F5 spraying delivery outlet after being, spraying single action water spray valve after leading directly to, the purpose of this design is: realization pair
Spraying electrichydraulic control afterwards.
F6 is to slip delivery outlet after drawing, and the epicoele of jack 23 is slipped after straight-through drawing, the purpose of this design is: realizing branch
Rear portion transporter drawing after frame Sub-Level Caving.
The present invention devises, and the bracket spray dust-reducing system A includes: preceding spraying device A1, rear spraying device A2.
Spray water pipeline under being drawn first by ground reaches spraying filter (GLQ100/10/80) through ball valve (QJ10),
It is divided to two-way to reach two single action water spray valves through threeway (KJ10).
One of them is preceding spraying device, and the E10 function mouth of main manipulation valve leads directly to the control mouth of the water injection valve, and delivery outlet connects
Access valve reaches the injection spray pipe on set cap, the purpose of this design is: realize the spraying electrichydraulic control in bracket front,
To reduce coalcutter coal cutting and move the dust of frame generation.
Another is rear spraying device, and the E5 function mouth of pair manipulation valve leads directly to the control mouth of the water injection valve, and delivery outlet is straight
Up to the injection spray pipe of bracket rear portion tail boom.The purpose of this design is: realizing the spraying electrichydraulic control in bracket rear portion.Rear spraying
Output pipe on, in parallel a double acting water injection valve, its control mouth are connected with the epicoele of plate jack 22, cavity of resorption.
Realize plate jack 22 stretch, the rear spraying linkage in time receiving, for controlling dust caused by Sub-Level Caving.
The present invention devises, and the hydraulic device M maneuverability pattern for sublevel caving hydrau lic support uses electrichydraulic control.
The present invention devises, connection type between the hydraulic device M pipeline for sublevel caving hydrau lic support, using fast quick access
Head is connected with U-shaped card and O-ring seals, convenient for disassembly and assembly.
Due to devising, the bracket spray dust-reducing system A, bracket function of tonic chord liquid-supplying system B；It also include emulsion
Pumping plant 25, when realizing bracket liter column, carried bottom jack 14 recycles automatically, avoids making mistakes because of worker operation, caused lift bottom
Jack 14 damages.Safety valve (FA250/50) is housed in column pilot operated valve device, protects column, avoids leading because roof pressure is excessive
The column of cause damages；It realizes bracket and tries to stop people from fighting each other and receive the linkage of extensible canopy；Realize the decline of support height；Realize bracket front-axle beam
Upper pendulum and the bottom；Gap adjusts between realizing the frame of bracket front and rear；When realizing bracket liter column, carried bottom jack
Automatic recycling；Realize the upper pendulum and the bottom of bracket face guard；Realize the electrichydraulic control to preceding spraying system；Meet use
In the functional requirement of the hydraulic device of sublevel caving hydrau lic support.
The present invention has the following characteristics:
1, it is provided with bracket function of tonic chord liquid-supplying system B, bracket is realized and tries to stop people from fighting each other and receive the linkage of extensible canopy, realize bracket front-axle beam
Upper pendulum and the bottom；Gap adjusts between realizing the frame of bracket front and rear.
2, it is provided with bracket function of tonic chord liquid-supplying system B, when realizing bracket liter column, the automatic recycling of carried bottom jack；
Realize the upper pendulum and the bottom of bracket face guard；Realize the decline of support height.
3, it is provided with bracket function of tonic chord liquid-supplying system B, the extension and recycling of Telescopic beam of hydraulic bracket is realized, realizes liquid
Press the recycling of set cap and caving shield side guard plate；The stretching of bracket side guard plate realizes the covering in gap between bracket, avoids falling
Coal is hurted sb.'s feelings.
4, it is provided with bracket spray dust-reducing system A, realizes the electrichydraulic control to preceding spraying system.
It is emphasized that: the foregoing examples are only illustrative of the present invention, does not constitute to protection of the invention
The limitation of range, all present invention identical as the present invention devise, and also include that similar design belongs to protection of the invention
Within the scope of.
Claims (10)
1. a kind of hydraulic device for sublevel caving hydrau lic support, it is characterised in that: include bracket spray dust-reducing system A, bracket master
Function liquid-supplying system B,
Or, it is characterized by: also including emulsion power pack (25).
2. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 1, it is characterised in that: the main function of bracket
Energy liquid-supplying system B includes big flow liquid feeding pipeline B1, main feed liquor/main liquid back pipe road B2, the main feed liquor/master of secondary electric-hydraulic control reversing valve
Time liquid interface B4 of liquid back pipe road B3, main manipulation valve and secondary manipulation valve.
3. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 2, it is characterised in that: the main feed liquor/
Main liquid back pipe road B2 include try to stop people from fighting each other delivery outlet E1, pushing and sliding outlet E2, rise front column delivery outlet E3, rise rear column delivery outlet E4,
Drop front column delivery outlet E5, drop rear column delivery outlet E6, side shield delivery outlet E7 is stretched, side shield delivery outlet E8 is received, stretches lift bottom delivery outlet
E9, preceding spraying delivery outlet E10, front-axle beam delivery outlet E11 is stretched, front-axle beam delivery outlet E12 is received, stretches wall supporting delivery outlet E13, receives wall supporting output
Mouthful E14, extensible canopy delivery outlet E15, receive flexible delivery outlet E16, stretch before adjust and adjust frame delivery outlet E18 before frame delivery outlet E17, receipts, stretch
Frame delivery outlet E20 is adjusted before preceding tune frame delivery outlet E19, receipts.
4. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 2, it is characterised in that: the main feed liquor/
Main liquid back pipe road B2 electrichydraulic control effect is as follows:
E1 is divided into two-way to try to stop people from fighting each other delivery outlet through threeway (KJ19): leading to by pushing one-way lock (FDYT400/50) push away all the way
The cavity of resorption of jack (11) is moved, another way leads to the epicoele of telescopic jack (12),
E2 is pushing and sliding outlet, by pushing one-way lock (FDYT400/50), leads to the epicoele of advancing jack (11), passage is unidirectional
It locks and safety valve (FA400/50) is installed,
E3 is to rise front column delivery outlet pipeline is divided into three tunnels through 2 threeways (KJ19), and wherein two-way leads directly to 2 front columns
(13) the setting prop mouth of pilot operated valve device, realizes the promotion of support height；Another way leads to the epicoele of carried bottom jack (14),
E4 is to rise a rear column delivery outlet, and pipeline is divided into two-way through threeway (KJ19), respectively to 2 rear column (15) pilot operated valve devices
Setting prop mouth,
The effect designed in this way is: realize the promotion of support height,
Safety valve (FA250/50) is housed in column pilot operated valve device,
E5 is drop front column delivery outlet, pipeline is divided into two-way through threeway (KJ19), respectively to 2 rear column (15) pilot operated valve devices
Drop column mouth,
E6 is drop rear column delivery outlet, pipeline is divided into two-way through threeway (KJ19), respectively to 2 rear column (15) pilot operated valve devices
Drop column mouth,
E7 is to stretch side to protect delivery outlet, passes to the cavity of resorption that side pushes away jack (16) through ball valve (QJB10), one-way lock, three,
E8 is to receive side to protect delivery outlet, passes to the epicoele that side pushes away jack (16) through three,
E9 is to stretch lift bottom delivery outlet, leads directly to the cavity of resorption of carried bottom jack (14),
E10 is preceding spraying delivery outlet, leads directly to the control interface of single action water spray valve,
E11 is to stretch front-axle beam delivery outlet, by hydraulic control one-way valve (FDY100/50), reaches the cavity of resorption of front-axle beam jack (17), single
Safety valve (FA125/50) is housed on valve,
E12 is to receive front-axle beam delivery outlet, by hydraulic control one-way valve (FDY100/50), reaches the epicoele of front-axle beam jack (17),
E13 is to stretch wall supporting delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the cavity of resorption of wall supporting jack (18), single
Safety valve (FA125/50) is housed on valve,
E14 is to receive wall supporting delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the epicoele of wall supporting jack (18),
E15 is extensible canopy delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the cavity of resorption of telescopic jack (12), single
Safety valve (FA125/50) is housed on valve,
E16 is to receive flexible delivery outlet, by hydraulic control reversible lock (FDS125/50), reaches the epicoele of telescopic jack (12),
E17 is to adjust frame delivery outlet before stretching, and by hydraulic control reversible lock (FDS125/50), is adjusted under frame jack (19) before reaching
Chamber,
E18 is to adjust frame delivery outlet before receiving, and by hydraulic control reversible lock (FDS125/50), adjusts the upper of frame jack (19) before reaching
Chamber,
E19 is to adjust frame delivery outlet before stretching, and by hydraulic control reversible lock (FDS125/50), is adjusted under frame jack (20) after arrival
Chamber,
E20 is to adjust frame delivery outlet before receiving, and by hydraulic control reversible lock (FDS125/50), the epicoele of frame jack (20) is adjusted after arrival.
5. according to power, benefit require 2 described in a kind of hydraulic device for sublevel caving hydrau lic support, it is characterised in that: the pair is electro-hydraulic
Control the main feed liquor of reversal valve/main liquid back pipe road B3 include: for a liter tail boom delivery outlet F1, by tail boom delivery outlet F2, stretch plate output
Mouth F3, delivery outlet F6 is slipped after receiving plate delivery outlet F4, rear delivery outlet F5, drawing by spraying.
6. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 2, it is characterised in that: the electro-hydraulic control of pair
The main feed liquor of reversal valve/main liquid back pipe road B3 electrichydraulic control function is as follows:
F1 is to rise tail boom delivery outlet, through threeway, divides to 2 fluid-control one-ways and locks (FDY100/50), then arrive separately at two tail booms
The cavity of resorption of jack (21) is equipped with safety valve (FA125/50) on check valve,
F2 is through 2 threeways, to divide to 2 fluid-control one-ways and lock (FDY100/50), it is very heavy to reach two tail booms tail boom delivery outlet
The epicoele for pushing up (21) in addition divides to alternately check valve all the way, reaches the epicoele of plate jack (22),
F3 is to stretch plate delivery outlet, is reached under two plate jack (22) through hydraulic control one-way valve (FDY100/50), threeway
Chamber,
F4 mouthfuls reach two plate jack (22) to receive plate delivery outlet, through hydraulic control one-way valve (FDY100/50), threeway
Epicoele,
F5 spraying delivery outlet after being, spraying single action water spray valve after leading directly to,
F6 is to slip delivery outlet after drawing, and the epicoele of jack (23) is slipped after straight-through drawing.
7. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 1, it is characterised in that: the bracket is spraying
Dust falling system A includes: preceding spraying device A1, rear spraying device A2,
Spray water pipeline under being drawn first by ground reaches spraying filter (GLQ100/10/80), through three through ball valve (QJ10)
Logical (KJ10) is divided to two-way to reach two single action water spray valves,
One of them is preceding spraying device, and the E10 function mouth of main manipulation valve leads directly to the control mouth of the water injection valve, delivery outlet connected ball
Valve reaches the injection spray pipe on set cap,
Another is rear spraying device, and the E5 function mouth of pair manipulation valve leads directly to the control mouth of the water injection valve, the through branch of delivery outlet
The injection spray pipe of frame rear portion tail boom.
8. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 1, it is characterised in that: described to be used for caving
The hydraulic device M maneuverability pattern of coal support uses electrichydraulic control.
9. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 1, it is characterised in that: described to be used for caving
Connection type between the hydraulic device M pipeline of coal support is connected using quick coupling with U-shaped card and O-ring seals, dismounting side
Just.
10. a kind of hydraulic device for sublevel caving hydrau lic support according to claim 1, it is characterised in that: the emulsion
Circulating liquid used in pumping plant (25) is emulsion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811483174.2A CN109695465B (en) | 2018-12-05 | 2018-12-05 | Hydraulic device for caving coal support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811483174.2A CN109695465B (en) | 2018-12-05 | 2018-12-05 | Hydraulic device for caving coal support |
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| CN109695465B CN109695465B (en) | 2021-01-22 |
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| CN109695465B (en) | 2021-01-22 |
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