CN104533856A - Hydraulic control system of full-hydraulic drill type coal miner - Google Patents
Hydraulic control system of full-hydraulic drill type coal miner Download PDFInfo
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- CN104533856A CN104533856A CN201410643298.8A CN201410643298A CN104533856A CN 104533856 A CN104533856 A CN 104533856A CN 201410643298 A CN201410643298 A CN 201410643298A CN 104533856 A CN104533856 A CN 104533856A
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- 239000003245 coal Substances 0.000 title claims abstract description 23
- 238000005553 drilling Methods 0.000 claims abstract description 52
- 230000009977 dual effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 135
- 239000002828 fuel tank Substances 0.000 claims description 30
- 230000002457 bidirectional effect Effects 0.000 claims description 23
- 238000005065 mining Methods 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a hydraulic control system of a full-hydraulic drill type coal miner. The hydraulic control system comprises a drill system, a walking system, a propelling system and an auxiliary system. The drill system is controlled in a closed-loop manner by a load sensitive variable pump and an electro-hydraulic proportional valve, the pressure and the flow of the drill system can be automatically adjusted according to load changes; and the drilling speed and the position of a drill rod can be controlled in real time. The walking system and the drill system share one dual variable axial piston pump, and the complexity and space of the walking system can be effectively reduced; a speed regulating valve is adopted in the propelling system to adjust the speed, the propelling speed is adjusted according to the working condition, and cutting of a drill machine under the maximum power is achieved; and the auxiliary system can complete supporting and slope adjustment of a working platform of the drill machine, conveying and clamping of the drill rod and adjustment of the working angle of the drill machine, and positioning of the drill rod in the process of drill rod changing is completed. The problems that a hydraulic system of an existing hydraulic drill type coal miner is complex in oil way, the drill rod is difficultly controlled precisely, the system efficiency is low, and auxiliary work time and drill rod changing time are long are solved.
Description
Technical field
The present invention relates to a kind of mining equiment hydraulic control system, be especially a kind ofly applicable to full-hydraulic drill type coal mining machine hydraulic control system that is thin and ultra-thin coal seam Mining Equipment.
Background technique
China thin with ultra-thin coal seam rich reserves, widely distributed, along with a large amount of exploitations of medium-thickness seam, thinly day by day become problem demanding prompt solution with thin seam mining.At present, thin lower with ultra-thin coal seam mining machines degree, and bore formula coal winning machine due to its short fuselage, the advantage such as high-power and be used widely, but the lifting of present stage hydraulic drill formula coal winning machine drilling rod employing monorail crane, artificial docking, and need be undertaken by the micro-adjusting mechanism be made up of ratchet and oil hydraulic cylinder adjusting and just can complete docking of drilling rod, control accuracy is low, the handling drilling rod time is long, greatly reduces coal mining efficiency.In addition, hydraulic system adopts metering pump fuel feeding, affects and causes each oil hydraulic circuit asynchronous, can not work under optimized parameter in rig working procedure by outer load variations.Be provided with multiple series flow control valve and relief valve in hydraulic system, system power loss is large, and heating is serious, and reliability is low.
Summary of the invention
Technical problem: the object of the invention is to overcome the deficiency existed in prior art, provides that a kind of level of integration is high, volume is little, heating value is little, the full-hydraulic drill type coal mining machine hydraulic control system of convenient operation and maintenance.
Technological scheme: full-hydraulic drill type coal mining machine hydraulic control system of the present invention, comprises drilling system, running gear, propulsion system and auxiliary system; Described drilling system comprises fuel tank, filter, duplex Variable plunger pump, electro-hydraulic proportional valve, creeps into motor and the hydraulic oil pipe for parts connection; Fuel tank is filtered and is connected with duplex Variable plunger pump, and duplex Variable plunger pump oil outlet connects one-way valve; Electro-hydraulic proportional valve filler opening is connected with one-way valve oil outlet, oil outlet with creep into motors, the LS mouth of electro-hydraulic proportional valve is connected with the LS mouth of duplex Variable plunger pump; Creep into the oil circuit that motor is connected with electro-hydraulic proportional valve and be provided with pressure gauge; By duplex Variable plunger pump and electro-hydraulic proportional valve, closed loop control is carried out to system;
Described running gear adopts open type load sensitive system, share a duplex Variable plunger pump with drilling system, it comprises fuel tank, filter, duplex Variable plunger pump, one-way valve, shuttle valve, load sensing multi-way valve group, direct-acting type hand-operated direction valve and running motor; Fuel tank is filtered and is connected with duplex Variable plunger pump, and duplex Variable plunger pump oil outlet is connected with one-way valve; One-way valve oil outlet is divided into two-way, and oil pipe of leading up to is connected with electro-hydraulic proportional valve, and oil pipe of separately leading up to is connected with load sensing multi-way valve group filler opening; Load sensing multi-way valve group two-way oil outlet is connected with running motor filler opening respectively, and guide's hydraulic fluid port is connected with direct-acting type hand-operated direction valve; Shuttle valve filler opening one end is connected with the LS mouth of load sensing multi-way valve group, and one end is connected with the LS mouth of electro-hydraulic proportional valve, and oil outlet is connected with the LS mouth of duplex Variable plunger pump.
Described propulsion system comprises propelling cylinder, guide type sequence valve, series flow control valve, multi-way valve group, bidirectional hydraulic lock, axial piston pump, self sealing oil absorption filter, pilot operated compound relief valve, water cooler, return filter, pressure gauge and fuel tank; Fuel tank is connected with axial piston pump through self sealing oil absorption filter; Axial plunger pump discharge divides two-way, and oil pipe of leading up to is connected with multi-way valve group entrance, and oil pipe of separately leading up to is connected with the entrance of pilot operated compound relief valve; Pilot operated compound relief valve is sequentially connected in series by oil pipe and water cooler, return filter and fuel tank; The outlet of multi-way valve group is connected with bidirectional hydraulic lock entrance; The outlet of bidirectional hydraulic lock two ends is connected with rodless cavity with propelling cylinder rod chamber respectively; Be connected in parallel between three propelling cylinders, in oil cylinder G18 and bidirectional hydraulic lock corresponding oil passage, be in series with series flow control valve, in oil cylinder G18 and oil cylinder G19 rodless cavity corresponding oil passage, be in series with guide type sequence valve; Axial plunger pump discharge and multi-way valve group to export on oil circuit and are otherly respectively connected to pressure gauge;
Described auxiliary system completes the support of rig working platform, platform oblique adjusting, Drill-pipe conveyed and drill-rod clamping, and it comprises platform oblique adjusting oil cylinder, equilibrium valve, steadily valve, eight valves, platform oil cylinder, bidirectional hydraulic lock, drilling rod dismounting oil cylinder, drill steel support oil cylinder, side arm oil cylinder, Drill-pipe conveyed motor, multi-way valve, axial piston pump, self sealing oil absorption filter and fuel tank; Auxiliary system and propulsion system share one group of oil-feed loop and oil return circuit; Hydraulic oil dismantles oil cylinder (25), drill steel support oil cylinder, side arm oil cylinder, Drill-pipe conveyed motors with drilling rod respectively through multi-way valve (24), and is in series with bidirectional hydraulic lock between each oil cylinder; Adopting between multi-way valve with eight valves passes a bridge is connected; The each oil outlet of eight valves is connected in parallel with platform oblique adjusting oil cylinder and platform support cylinder respectively, is in series with steady valve and equilibrium valve successively, is in series with bidirectional hydraulic lock between eight valves and platform oil cylinder between eight valves and platform oblique adjusting oil cylinder;
The described motor in-line that creeps into is provided with pressure transducer, creeps into motor and drilling rod joint is provided with rotating coder and angular displacement sensor.
Described load sensing multi-way valve group is dual valve.
Eight described valves and multi-way valve group are three six electric change valves, and its control mode is y-function.
Described hydraulic jack amounts to 20, is represented respectively by G1-G20.
Beneficial effect: the present invention adopts electric liquid Automated condtrol convenient operation and maintenance, and compared with prior art tool has the following advantages:
1, full-hydraulic drill type coal mining machine hydraulic control system adopts drilling system, running gear, propulsion system and auxiliary system; Each subsystem mutual noninterference in working procedure, convenient operation, easy to maintenance.
2, drilling system carries out closed loop control by load-reacting pump and electro-hydraulic proportional valve to system, according to load variations automatic adjustment system pressure and flow, and can control drilling rod drilling speed and position in real time, increase work efficiency, reduces subsidiary operation time;
3, running gear adopts open type load sensitive system, shares a duplex Variable plunger pump, can effectively reduce system complexity and system space with drilling system, reduces rig volume.
4, propulsion system is made up of metering pump and series flow control valve, completes air duct and drilling rod propelling operation, according to rig cut Operating condition adjustment fltting speed, can realize rig cut under maximal efficiency.
5, efficiently solve existing hydraulic drill formula coal-mining machine hydraulic system oil circuit complicated, be difficult to realize drilling rod and accurately control, the low shortcoming grown with less important work and changing-over drilling rod time of system effectiveness.
Accompanying drawing explanation
Fig. 1 is full-hydraulic drill type coal mining machine hydraulic control system structured flowchart of the present invention;
Fig. 2 is full-hydraulic drill type coal mining machine drilling rod positioning system structure block diagram of the present invention;
Fig. 3 is full-hydraulic drill type coal mining machine hydraulic control system schematic diagram of the present invention.
In figure: 1-fuel tank; 2-filter; 3-water-cooled machine; The star-like elastic coupling flexible coupling of 4-; 5-duplex Variable plunger pump; 6-one-way valve; 7-electro-hydraulic proportional valve; 8-pressure gauge; 9-creeps into motor; 10-pressure transducer; 11-shuttle valve; 12-load sensing multi-way valve group; 13-direct-acting type hand-operated direction valve; 14-running motor; 15-platform oblique adjusting oil cylinder; 16-equilibrium valve; The steady valve of 17-; 18-eight valve; 19-platform oil cylinder; 20-bidirectional hydraulic lock; 21-propelling cylinder; 22-guide type sequence valve; 23-series flow control valve; 24-multi-way valve group; 25-drilling rod dismounting oil cylinder; 26-drill steel support oil cylinder; 27-side arm oil cylinder; 28-Drill-pipe conveyed motor; 29-water cooler; 30-return filter; 31-pilot operated compound relief valve; 32-axial piston pump; 33-self sealing oil absorption filter; 34-level meter; 35-air filter; 36-angular displacement sensor; 37-rotating coder.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are further described:
As shown in Figure 1, full-hydraulic drill type coal mining machine hydraulic control system of the present invention, comprises drilling system, running gear, propulsion system and auxiliary system;
As shown in Figure 3, drilling system comprises fuel tank, filter, duplex Variable plunger pump, electro-hydraulic proportional valve, creeps into motor and the hydraulic oil pipe for parts connection; Fuel tank is filtered and is connected with duplex Variable plunger pump, and duplex Variable plunger pump oil outlet connects one-way valve; Electro-hydraulic proportional valve filler opening is connected with one-way valve oil outlet, oil outlet with creep into motors, the LS mouth of electro-hydraulic proportional valve is connected with the LS mouth of duplex Variable plunger pump; Creep into motor to be connected on oil circuit with Proportional valve and to be provided with pressure gauge;
Wherein, running gear and drilling system share a duplex Variable plunger pump, comprise fuel tank, filter, duplex Variable plunger pump, one-way valve, shuttle valve, load sensing multi-way valve group, direct-acting type hand-operated direction valve and running motor; Fuel tank is filtered and is connected with duplex Variable plunger pump, and duplex Variable plunger pump oil outlet is connected with one-way valve; One-way valve oil outlet is divided into two-way, and oil pipe of leading up to is connected with electro-hydraulic proportional valve, and oil pipe of separately leading up to is connected with load sensing multi-way valve group filler opening; Load sensing multi-way valve group two-way oil outlet is connected with running motor filler opening respectively, and guide's hydraulic fluid port is connected with direct-acting type hand-operated direction valve; Shuttle valve filler opening one end is connected with the LS mouth of load sensing multi-way valve group, and one end is connected with the LS mouth of electro-hydraulic proportional valve, and oil outlet is connected with the LS mouth of duplex Variable plunger pump.
Wherein, propulsion system comprises propelling cylinder, guide type sequence valve, series flow control valve, multi-way valve group, bidirectional hydraulic lock, axial piston pump, self sealing oil absorption filter, pilot operated compound relief valve, water cooler, return filter, pressure gauge and fuel tank; Fuel tank is connected with axial piston pump through self sealing oil absorption filter; Axial plunger pump discharge divides two-way, and oil pipe of leading up to is connected with multi-way valve group entrance, and oil pipe of separately leading up to is connected with the entrance of pilot operated compound relief valve; Pilot operated compound relief valve is sequentially connected in series by oil pipe and water cooler, return filter and fuel tank; The outlet of multi-way valve group is connected with bidirectional hydraulic lock entrance; The outlet of bidirectional hydraulic lock two ends is connected with rodless cavity with propelling cylinder rod chamber respectively; Be connected in parallel between three propelling cylinders, in oil cylinder G18 and bidirectional hydraulic lock corresponding oil passage, be in series with series flow control valve, in oil cylinder G18 and oil cylinder G19 rodless cavity corresponding oil passage, be in series with guide type sequence valve; Axial plunger pump discharge and multi-way valve group to export on oil circuit and are otherly respectively connected to pressure gauge;
Wherein, auxiliary system comprises platform oblique adjusting oil cylinder, equilibrium valve, steadily valve, eight valves, platform oil cylinder, bidirectional hydraulic lock, Drill-pipe conveyed motor, side arm oil cylinder, drill steel support oil cylinder, drilling rod dismounting oil cylinder, multi-way valve, axial piston pump, self sealing oil absorption filter and fuel tank; Auxiliary system and propulsion system share one group of oil-feed loop and oil return circuit; Hydraulic oil is dismantled oil cylinder with Drill-pipe conveyed motor, side arm oil cylinder, drill steel support oil cylinder, drilling rod respectively through multi-way valve and is connected, and is in series with bidirectional hydraulic lock between each oil cylinder; Adopting between multi-way valve with eight valves passes a bridge is connected; The each oil outlet of eight valves is connected in parallel with platform oblique adjusting oil cylinder and platform support cylinder respectively, is in series with steady valve and equilibrium valve successively, is in series with bidirectional hydraulic lock between eight valves and platform oil cylinder between eight valves and platform oblique adjusting oil cylinder;
Creep on motor in-line and be provided with pressure transducer, creep into motor and drilling rod joint is provided with rotating coder and angular displacement sensor;
Load sensing multi-way valve group is dual valve; Eight described valves and multi-way valve group are three six electric change valves, and its control mode is y-function; Described hydraulic jack amounts to 20, is represented respectively by G1-G20;
Duplex Variable plunger pump adopts star-like elastic coupling flexible coupling to be connected with water-cooled machine; Each hydraulic system adopts same oil return circuit to be connected with fuel tank; Described top of oil-tank is provided with air filter, and side is provided with level meter.
Composition graphs 3 sketches working procedure of the present invention:
Drilling system: water-cooled machine 3 drives duplex Variable plunger pump 5 to rotate by star-like elastic coupling flexible coupling 4, duplex Variable plunger pump 5 is through filter 2 oil suction from fuel tank 1, fluid exports from duplex Variable plunger pump 5 and flows to electro-hydraulic proportional valve 7 through one-way valve 6, motor 9 entrance is crept in further inflow, promotes to creep into motor rotary work.The LS mouth of electro-hydraulic proportional valve 7 is connected with the LS mouth of duplex Variable plunger pump 5, can according to load variations automatic adjustment system pressure and flow, make drilling rod drilling speed not by the impact of load variations, creep on motor 9 in-line and be provided with pressure transducer 10, creep into motor and drilling rod joint is provided with rotating coder 36 and angular displacement sensor 37, form closed loop control system with electro-hydraulic proportional valve 7, adjust the size of electro-hydraulic proportional valve 7 opening amount according to system change in real time.
Running gear: running gear and drilling system share a duplex Variable plunger pump and oil suction line, after water-cooled machine 3 starts, fluid is divided into two-way through one-way valve 6, oil pipe of leading up to flows to electro-hydraulic proportional valve 7, oil pipe of separately leading up to flows to load sensing multi-way valve group 12, be connected with running motor 14 filler opening respectively through load sensing multi-way valve group 12 two-way oil outlet, pilot control hydraulic fluid port is connected with direct-acting type hand-operated direction valve 13, controls the rotating forward of running motor, reversion and stopping; The LS mouth of load sensing multi-way valve group 12 is connected with shuttle valve 11, and shuttle valve 11 the other end is connected with the LS mouth of electro-hydraulic proportional valve 7, and shuttle valve 11 exports and is connected with the LS mouth of duplex Variable plunger pump 5.By the selection index system of shuttle valve, running gear and drilling system can realize Ioad-sensing control respectively.
Propulsion system: in fuel tank 1, fluid is after self sealing oil absorption filter 33 filters, and flow to multi-way valve group 24 by axial piston pump 32, when multi-way valve group 7 is in meta, hydraulic oil directly flows back to fuel tank 1; When multi-way valve group 7 is in left position, fluid flows to series flow control valve 23 by bidirectional hydraulic lock 20, two-way is divided into through series flow control valve 23, one tunnel directly flows to oil hydraulic cylinder G18 rodless cavity, one tunnel flows to oil hydraulic cylinder G19, G20 rodless cavity through guide type sequence valve 22, oil hydraulic cylinder can be realized by the selection index system of guide type sequence valve 22 successively to stretch out, complete drilling rod and advance, regulate drilling rod fltting speed by the opening amount changing series flow control valve 23; When multi-way valve group be in 7 be in right position time, fluid directly flows to propelling cylinder 21 rod chamber through bidirectional hydraulic lock 20, propelling cylinder piston retract, complete drilling rod retreat.
Auxiliary system: in fuel tank 1, fluid is after self sealing oil absorption filter 33 filters, multi-way valve group 24 and eight valves 18 are flowed to by axial piston pump 32, be connected for passing a bridge between multi-way valve group 24 with eight valves 18, each valve block of multi-way valve group 24 dismantles oil cylinder 25 with drilling rod respectively, drill steel support oil cylinder 26, side arm oil cylinder 27, Drill-pipe conveyed motor 28 is connected, each valve block of eight valves 18 is connected with platform supporting oil 19 with platform oblique adjusting oil cylinder 15 respectively, separate between each oil hydraulic circuit, by changing the opening of corresponding valve block, realize the support of drill stem platform, the clamping of oblique adjusting and drilling rod and conveying.
As shown in Figure 2, drilling rod transition: creep into motor and drilling rod joint is provided with rotating coder 36 and angular displacement sensor 37, closed loop control system is formed with electro-hydraulic proportional valve 7, rotating coder 36 and angular displacement sensor 37 detect drilling rod circumferential position and feed back to industry control upper-position unit, the size of imitated output quantity is changed by industry control upper-position unit, thus the opening amount of adjustment electro-hydraulic proportional valve 7, realize the adjustment of drilling rod drilling speed, drilling rod is parked in circumferential specified location the most at last.Afterwards, start drill steel support oil cylinder 26 and clamp stacks to be changed, start Drill-pipe conveyed motor 28 and drilling rod is transported to position of host machine, start propelling cylinder promotion duplex Variable plunger pump 5 output shaft to be connected with stacks rear end to be changed, continuation promotion duplex Variable plunger pump 5 realizes stacks front end to be changed and is connected with work drilling rod rear end; Drill steel support oil cylinder 26 is reverse, unclamps stacks to be changed, completes drilling rod changing-over.
Claims (5)
1. a full-hydraulic drill type coal mining machine hydraulic control system, comprises drilling system, running gear, propulsion system and auxiliary system; It is characterized in that: described drilling system comprises fuel tank (1), filter (2), duplex Variable plunger pump (5), electro-hydraulic proportional valve (7), creeps into motor (9) and the hydraulic oil pipe for parts connection; Fuel tank (1) filters through filter (2) and is connected with duplex Variable plunger pump (5), and duplex Variable plunger pump (5) oil outlet connects one-way valve (6); Electro-hydraulic proportional valve (7) filler opening is connected with one-way valve (6) oil outlet, oil outlet with creep into motor (9) and be connected, electro-hydraulic proportional valve (7) LS mouth is connected with duplex Variable plunger pump (5) LS mouth; Creep into the oil circuit that motor (9) is connected with electro-hydraulic proportional valve (7) and be provided with pressure gauge (8); By duplex Variable plunger pump and electro-hydraulic proportional valve (7), closed loop control is carried out to system;
Described running gear adopts open type load sensitive system, share a duplex Variable plunger pump with drilling system, it comprises fuel tank (1), filter (2), duplex Variable plunger pump (5), one-way valve (6), shuttle valve (11), load sensing multi-way valve group (12), direct-acting type hand-operated direction valve (13) and running motor (14); Fuel tank (1) filters through filter (2) and is connected with duplex Variable plunger pump (5), and duplex Variable plunger pump (5) oil outlet is connected with one-way valve (6); One-way valve (6) oil outlet is divided into two-way, and oil pipe of leading up to is connected with electro-hydraulic proportional valve (7), and oil pipe of separately leading up to is connected with load sensing multi-way valve group (12) filler opening; Load sensing multi-way valve group (12) two-way oil outlet is connected with running motor (14) filler opening respectively, and guide's hydraulic fluid port is connected with direct-acting type hand-operated direction valve (13); Shuttle valve filler opening one end is connected with the LS mouth of load sensing multi-way valve group (12), and one end is connected with the LS mouth of electro-hydraulic proportional valve (7), and oil outlet is connected with the LS mouth of duplex Variable plunger pump (5).
Described propulsion system comprises propelling cylinder (21), guide type sequence valve (22), series flow control valve (23), multi-way valve group (24), bidirectional hydraulic lock (20), axial piston pump (32), self sealing oil absorption filter (33), pilot operated compound relief valve (31), water cooler (29), return filter (30), pressure gauge (8) and fuel tank (1); Fuel tank (1) is connected with axial piston pump (32) through self sealing oil absorption filter (33); Axial piston pump (32) outlet point two-way, oil pipe of leading up to is connected with multi-way valve group (24) entrance, and oil pipe of separately leading up to is connected with the entrance of pilot operated compound relief valve (31); Pilot operated compound relief valve (31) is sequentially connected in series by oil pipe and water cooler (29), return filter (30) and fuel tank (1); Multi-way valve group (24) outlet is connected with bidirectional hydraulic lock (20) entrance; The outlet of bidirectional hydraulic lock (20) two ends is connected with rodless cavity with propelling cylinder (21) rod chamber respectively; Be connected in parallel between three propelling cylinders, in oil cylinder G18 and bidirectional hydraulic lock (20) corresponding oil passage, be in series with series flow control valve (23), in oil cylinder G18 and oil cylinder G19 rodless cavity corresponding oil passage, be in series with guide type sequence valve (22); Axial piston pump (32) outlet export on oil circuit respectively with multi-way valve group (24) and is connected to pressure gauge (8);
Described auxiliary system completes the support of rig working platform, platform oblique adjusting, Drill-pipe conveyed and drill-rod clamping, and it comprises platform oblique adjusting oil cylinder (15), equilibrium valve (16), steadily valve (17), eight valves (18), platform oil cylinder (19), bidirectional hydraulic lock (20), drilling rod dismounting oil cylinder (25), drill steel support oil cylinder (26), side arm oil cylinder (27), Drill-pipe conveyed motor (28), multi-way valve (24), axial piston pump (32), self sealing oil absorption filter (33) and fuel tank (1); Auxiliary system and propulsion system share one group of oil-feed loop and oil return circuit; Hydraulic oil dismantles oil cylinder (25) respectively through multi-way valve (24) with drilling rod, drill steel support oil cylinder (26), side arm oil cylinder (27), Drill-pipe conveyed motor (28) are connected, and between each oil cylinder, are in series with bidirectional hydraulic lock (20); Adopt to pass a bridge between multi-way valve (24) with eight valves (18) and be connected; Eight valves (18) each oil outlet is connected in parallel with platform oblique adjusting oil cylinder (15) and platform support cylinder (19) respectively, be in series with steady valve (17) and equilibrium valve (16) between eight valves (18) and platform oblique adjusting oil cylinder (15) successively, between eight valves (18) and platform oil cylinder (19), be in series with bidirectional hydraulic lock (20).
2. full-hydraulic drill type coal mining machine hydraulic control system according to claim 1, it is characterized in that: described motor (9) in-line that creeps into is provided with pressure transducer (10), creep into motor and drilling rod joint is provided with rotating coder (37) and angular displacement sensor (36).
3. full-hydraulic drill type coal mining machine hydraulic control system according to claim 1, is characterized in that: described load sensing multi-way valve group (12) is dual valve.
4. full-hydraulic drill type coal mining machine hydraulic control system according to claim 1, is characterized in that: described eight valves (18) and multi-way valve group (24) are three six electric change valves, and its control mode is y-function.
5. full-hydraulic drill type coal mining machine hydraulic control system according to claim 1, is characterized in that: described hydraulic jack amounts to 20, is represented respectively by G1-G20.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643298.8A CN104533856B (en) | 2014-11-13 | 2014-11-13 | Full-hydraulic drill type coal mining machine hydraulic control system |
| PCT/CN2015/086598 WO2016074509A1 (en) | 2014-11-13 | 2015-08-11 | Hydraulic control system of fully-hydraulic drill type coal mining machine |
| ZA2016/04911A ZA201604911B (en) | 2014-11-13 | 2016-07-15 | Hydraulic control system of fully-hydraulic drill type coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410643298.8A CN104533856B (en) | 2014-11-13 | 2014-11-13 | Full-hydraulic drill type coal mining machine hydraulic control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533856A true CN104533856A (en) | 2015-04-22 |
| CN104533856B CN104533856B (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410643298.8A Expired - Fee Related CN104533856B (en) | 2014-11-13 | 2014-11-13 | Full-hydraulic drill type coal mining machine hydraulic control system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104533856B (en) |
| WO (1) | WO2016074509A1 (en) |
| ZA (1) | ZA201604911B (en) |
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| WO2016074509A1 (en) * | 2014-11-13 | 2016-05-19 | 中国矿业大学 | Hydraulic control system of fully-hydraulic drill type coal mining machine |
| CN107088284A (en) * | 2017-07-07 | 2017-08-25 | 合肥巨澜安全技术有限责任公司 | Far Range firefighting fire extinguishing robot device |
| CN108488121A (en) * | 2018-02-12 | 2018-09-04 | 宝鸡石油机械有限责任公司 | A kind of board migration device hydraulic pressure is from ambulation control method and control system |
| CN108612516A (en) * | 2018-06-07 | 2018-10-02 | 中国铁建重工集团有限公司 | A kind of rock drilling machine and its hydraulic control valve group |
| CN108679021A (en) * | 2018-08-15 | 2018-10-19 | 尤洛卡（山东）矿业科技有限公司 | A kind of monorail crane locomotive and its vibration hydraulic system |
| CN109779876A (en) * | 2019-02-13 | 2019-05-21 | 西山煤电(集团)有限责任公司 | A kind of automatic feedback formula self-walking aerial pressure clear water pump truck |
| CN110159249A (en) * | 2019-04-10 | 2019-08-23 | 中国矿业大学 | A kind of rock drill hydraulic control system and method |
| CN110552925A (en) * | 2019-08-27 | 2019-12-10 | 中国煤炭科工集团太原研究院有限公司 | Intelligent two-arm anchor rod drill carriage electro-hydraulic walking synchronous control system with automatic speed measuring device |
| CN111207123A (en) * | 2020-03-16 | 2020-05-29 | 中国煤炭科工集团太原研究院有限公司 | Synchronous control method for pushing oil cylinder of side mining transportation unit |
| CN112796689A (en) * | 2021-02-03 | 2021-05-14 | 江苏中煤矿山设备有限公司 | Pressure-adjustable pump truck for punching and drilling |
| CN113682961A (en) * | 2021-09-06 | 2021-11-23 | 江苏浩吉矿用装备有限公司 | Small-size single track hangs open hydraulic system |
| CN113775611A (en) * | 2021-08-16 | 2021-12-10 | 山西平阳重工机械有限责任公司 | Electro-hydraulic proportional hydraulic system of double-row whole-stalk sugarcane harvester |
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| CN113323834A (en) | 2021-06-29 | 2021-08-31 | 烟台杰瑞石油装备技术有限公司 | Turbine fracturing device |
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| JPS6392801A (en) * | 1986-10-07 | 1988-04-23 | Komatsu Ltd | Control method of hydraulic system |
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| WO2016074509A1 (en) * | 2014-11-13 | 2016-05-19 | 中国矿业大学 | Hydraulic control system of fully-hydraulic drill type coal mining machine |
| CN107088284A (en) * | 2017-07-07 | 2017-08-25 | 合肥巨澜安全技术有限责任公司 | Far Range firefighting fire extinguishing robot device |
| CN108488121A (en) * | 2018-02-12 | 2018-09-04 | 宝鸡石油机械有限责任公司 | A kind of board migration device hydraulic pressure is from ambulation control method and control system |
| CN108612516B (en) * | 2018-06-07 | 2024-02-20 | 中国铁建重工集团股份有限公司 | Rock drilling machine and hydraulic control valve group thereof |
| CN108612516A (en) * | 2018-06-07 | 2018-10-02 | 中国铁建重工集团有限公司 | A kind of rock drilling machine and its hydraulic control valve group |
| CN108679021A (en) * | 2018-08-15 | 2018-10-19 | 尤洛卡（山东）矿业科技有限公司 | A kind of monorail crane locomotive and its vibration hydraulic system |
| CN109779876A (en) * | 2019-02-13 | 2019-05-21 | 西山煤电(集团)有限责任公司 | A kind of automatic feedback formula self-walking aerial pressure clear water pump truck |
| CN110159249A (en) * | 2019-04-10 | 2019-08-23 | 中国矿业大学 | A kind of rock drill hydraulic control system and method |
| CN110552925A (en) * | 2019-08-27 | 2019-12-10 | 中国煤炭科工集团太原研究院有限公司 | Intelligent two-arm anchor rod drill carriage electro-hydraulic walking synchronous control system with automatic speed measuring device |
| CN111207123A (en) * | 2020-03-16 | 2020-05-29 | 中国煤炭科工集团太原研究院有限公司 | Synchronous control method for pushing oil cylinder of side mining transportation unit |
| CN111207123B (en) * | 2020-03-16 | 2022-03-08 | 中国煤炭科工集团太原研究院有限公司 | Synchronous control method for pushing oil cylinder of side mining transportation unit |
| CN112796689A (en) * | 2021-02-03 | 2021-05-14 | 江苏中煤矿山设备有限公司 | Pressure-adjustable pump truck for punching and drilling |
| CN113775611A (en) * | 2021-08-16 | 2021-12-10 | 山西平阳重工机械有限责任公司 | Electro-hydraulic proportional hydraulic system of double-row whole-stalk sugarcane harvester |
| CN113775611B (en) * | 2021-08-16 | 2023-09-08 | 山西平阳重工机械有限责任公司 | Hydraulic system for electric-hydraulic proportion of double-row whole-rod sugarcane harvester |
| CN113682961A (en) * | 2021-09-06 | 2021-11-23 | 江苏浩吉矿用装备有限公司 | Small-size single track hangs open hydraulic system |
| CN113682961B (en) * | 2021-09-06 | 2024-01-26 | 江苏浩吉矿用装备有限公司 | Small monorail crane open type hydraulic system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016074509A1 (en) | 2016-05-19 |
| ZA201604911B (en) | 2018-06-27 |
| CN104533856B (en) | 2016-05-11 |
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