CN106321541A - Electric-hydraulic double-control hydraulic system and method for vehicle-mounted drilling machine - Google Patents

Electric-hydraulic double-control hydraulic system and method for vehicle-mounted drilling machine Download PDF

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Publication number
CN106321541A
CN106321541A CN201610768943.8A CN201610768943A CN106321541A CN 106321541 A CN106321541 A CN 106321541A CN 201610768943 A CN201610768943 A CN 201610768943A CN 106321541 A CN106321541 A CN 106321541A
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China
Prior art keywords
valve
hydraulic
control
mouth
decompression overflow
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CN201610768943.8A
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CN106321541B (en
Inventor
凡东
鲁飞飞
田宏亮
常江华
翁寅生
王瑞泽
赵良
邹祖杰
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Xian Research Institute Co Ltd of CCTEG
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Xian Research Institute Co Ltd of CCTEG
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/022Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems

Abstract

The invention discloses an electric-hydraulic double-control hydraulic system and method, belongs to the field of coalbed methane mining, and particularly relates an electric-hydraulic double-control hydraulic system and method for a vehicle-mounted drilling machine. Proportional control over the running speed of an executing mechanism can be achieved through a hydraulic-control multi-way valve, the double-control type hydraulic control system is composed of a hydraulic pilot control valve, a shuttle valve and an electric proportional pressure reducing overflow valve, and the flow of hydraulic oil of the multi-way valve can be manually or automatically controlled. The electric-hydraulic double-control hydraulic system can be manually or electrically controlled, an electric control system can be used for controlling the executing mechanism of the vehicle-mounted drilling machine so that the requirement for automatic and remote control of the vehicle-mounted drilling machine can be conveniently met; and in addition, when the electric control system breaks down, manual operation can be conveniently and rapidly achieved, and therefore drilling accidents or safety accidents caused by the situation that the executing mechanism stops working are avoided.

Description

A kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic system and method
Technical field
The present invention relates to a kind of electro-hydraulic dual control hydraulic system and method, belong to coal-bed gas exploitation field, be specifically related to one Truck-mounted drilling rig electro-hydraulic dual control hydraulic system and method.
Background technology
Truck-mounted drilling rig is mainly used in coal-bed gas exploitation and mine boring rescue, and this requires truck-mounted drilling rig to have efficiently, can Lean on, safe high.Hydraulic guide control due to can use relatively low discharge and pressure distant control large-capacity valve work, Control system flexible arrangement is convenient, is therefore used widely in drilling rig hydraulic system designs.Along with electrical-liquid control skill The development of art, electro-hydraulic proportional control technology is in engineering machinery field more application, and this provides ginseng for truck-mounted drilling rig Automated condtrol Examine.
Require that it has higher reliability, even if occurring that equipment fault also can be very fast during using due to truck-mounted drilling rig Fix a breakdown and prevent drilling accident from bringing about great losses, although electro-hydraulic proportional control technology can realize the automatization of truck-mounted drilling rig Controlling, but the overall qualities for overhaul of the equipments personnel and rig personnel require higher, when equipment breaks down, maintenance is relatively Difficulty, it is impossible to the normal operation of fast recovery equipment, therefore for safety, maintenance convenient etc. from the standpoint of, rig major loop control Make less employing electric-control system.Primary circuit many selections reliabilities such as truck-mounted drilling rig feeds, revolution are high, the liquid of system maintenance easy Pressure pilot control system, this is that the Automated condtrol of truck-mounted drilling rig brings obstacle.Although section hydraulic system support manufacturer releases Manually with electricity ratio dual control hydraulic multitandem valve, but owing to truck-mounted drilling rig big flow banked direction control valves is generally disposed on chassis of vehicle body, Distant with bench board, when electric-control system breaks down, manual operation banked direction control valves is extremely inconvenient, and is difficult to observe each execution Mechanism's duty.
Summary of the invention
The present invention mainly solves contradictory problems between high reliability and the Operation and Maintenance convenience existing for prior art, Provide a kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic system and method.It is high, efficiently etc. that this system and method has safe and reliable property Advantage, and it is automatically obtained automatically controlled and function of hydraulic control conversion by shuttle valve, faster system response, power and energy is the most convenient.
The above-mentioned technical problem of the present invention is mainly addressed by following technical proposals:
A kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic system, including:
Shuttle valve, its first input port A is connected with the delivery outlet of Hydraulic guide control valve, its second input port B and electricity ratio The delivery outlet of decompression overflow valve is connected, and its delivery outlet C is connected with the control input port of liquor controlled multipath;
Actuator, is connected with the delivery outlet of liquor controlled multipath.
Optimize, above-mentioned a kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic system, described shuttle valve and electricity ratio decompression overflow valve It is two, wherein:
First input port A of the first shuttle valve is connected with the first delivery outlet A of Hydraulic guide control valve, its second input port B It is connected with the delivery outlet of the first electricity ratio decompression overflow valve;
First input port A of the second shuttle valve is connected with the second delivery outlet B of Hydraulic guide control valve, its second input port B It is connected with the delivery outlet of the second electricity ratio decompression overflow valve;
The delivery outlet of described first shuttle valve and the second shuttle valve connects the different of liquor controlled multipath respectively and controls input port.
Optimize, above-mentioned a kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic system, also include: with electricity ratio decompression overflow valve, The air relief valve that Hydraulic guide control valve is connected.
A kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic control method, including:
Electrical-liquid control step, is connected electricity ratio decompression overflow valve and liquor controlled multipath by shuttle valve, by electricity ratio decompression Overflow valve controls the action of actuator by liquor controlled multipath;
Hydraulic guide control step, connects Hydraulic guide control valve respectively by the first input port and second input port of shuttle valve With electric ratio decompression overflow valve, pressure the higher person in Hydraulic guide control valve and electricity ratio decompression overflow valve pass through hydraulic control multichannel Valve controls the action of actuator.
Optimize, above-mentioned a kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic control method,
In described electrical-liquid control step: after the first electricity ratio decompression overflow valve obtains automatically controlled signal, its A mouth exports Controlling pressure accordingly, the A mouth pressure of the C mouth pressure of the first shuttle valve and the first electricity ratio decompression overflow valve is identical, the C of the first shuttle valve Mouthful being connected with the b1 mouth of hydraulic control load sensing multi-way valve, control hydraulic control load sensing multi-way valve works in bottom, its valve opening and The operating pressure of the first electricity ratio decompression overflow valve is corresponding;
When the second electricity ratio decompression overflow valve obtains automatically controlled signal, and the output of its A mouth controls pressure, now the second shuttle valve accordingly C mouth pressure and the A mouth pressure of the second electricity ratio decompression overflow valve identical, the C mouth of the second shuttle valve and hydraulic control load-sensitive multichannel The a1 mouth of valve connects, and controls hydraulic control load sensing multi-way valve and works in upper, its valve opening and electricity ratio decompression overflow valve work Pressure is corresponding.
Optimize, above-mentioned a kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic control method, in Hydraulic guide control step:
When electricity ratio decompression overflow valve is with the action simultaneously of hydraulic control pilot valve, the C mouth operating pressure of shuttle valve subtracts with electricity ratio Pressurized overflow valve is identical with the higher person operating pressure in hydraulic control pilot valve;
Wherein, the C mouth of the first shuttle valve is connected with the b1 mouth of hydraulic control load sensing multi-way valve, the C mouth of the second shuttle valve and hydraulic control The a1 mouth of load sensing multi-way valve connects;Hydraulic control load sensing multi-way valve is controlled respectively upper by the first shuttle valve and the second shuttle valve Switch between bottom.
Therefore, present invention have the advantage that the electro-hydraulic dual control scheme of employing, select hydraulic pilot handle and electricity by shuttle valve Liquid proportional decompression overflow valve pressure signal, it is achieved Hydraulic guide control and electric-hydraulic proportion pilot control can be realized, it is simple to realize car Load rig automatically controls.When electro-hydraulic proportional control system breaks down, can be realized big stream by operation hydraulic pilot handle Amount banked direction control valves control, do not affect truck-mounted drilling rig when maintainer safeguards electric-control system and normally creep into operation, system have safety, The advantages such as reliability is high, efficient.Being automatically obtained automatically controlled and function of hydraulic control conversion by shuttle valve, faster system response, power and energy is fast Speed is convenient.
Accompanying drawing explanation
Fig. 1 is existing Hydraulic guide control systematic schematic diagram;
Fig. 2 is electro-hydraulic proportional control system schematic diagram;
Fig. 3 is electro-hydraulic dual control hydraulic system principle figure in embodiments of the invention;
Fig. 4 is electro-hydraulic dual control hydraulic system principle figure partial enlargement in embodiments of the invention.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
In figure, load sensitive pump 1, hydraulic control load sensing multi-way valve 2, actuator the 3, first shuttle valve the 4, first electricity ratio subtract Pressurized overflow valve the 5, second electricity ratio decompression overflow valve the 6, second shuttle valve 7, Hydraulic guide control valve 8, air relief valve 9, fuel tank 10.
Embodiment:
Why existing Electric-hydraulic Proportional Load Sensor system is difficult to promote in truck-mounted drilling rig field, and its reason is to use electricity Liquid proportional technology realizes rig groundwork mechanism controls, it is desirable to rig operations and attendant have higher overall qualities, Will appreciate that electrical equipment and hydraulic system maintenance and safeguard, and system reliability high maintenance is convenient, this is difficult to real in production practices Existing.
In being embodied as of the present invention, it is considered to combine Hydraulic guide control high reliability and safeguard convenience and electric-hydraulic proportion Control increasingly automated feature, use electro-hydraulic double-control system, it is possible to realize automatically controlled switching quickly and easily with Hydraulic guide control.
Below in conjunction with the accompanying drawings with specific embodiment, describe technical scheme in detail.
See the hydraulic schematic diagram that Fig. 3, Fig. 3 are present example and include load sensitive pump 1, hydraulic control load sensing multi-way valve 2, actuator the 3, first shuttle valve 4, first electricity ratio decompression overflow valve the 5, second electricity ratio decompression overflow valve the 6, second shuttle valve 7, Hydraulic guide control valve 8, air relief valve 9, fuel tank 10.
Load sensitive pump 1 is hydraulic system high pressure fuel source, and hydraulic control load sensing multi-way valve 2 controls actuator 3 action, liquid Control load sensing multi-way valve 2 sequence of movement is controlled by hydraulic control load sensing multi-way valve 2a1, b1 mouth pilot pressure.A1 mouth obtains Pressure controling signal, hydraulic control load sensing multi-way valve 2 works in upper, actuator positive movement, and b1 mouth obtains Stress control Signal, hydraulic control load sensing multi-way valve 2 action in bottom, actuator adverse movement, during a1, b1 mouth no pressure signal, hydraulic control Load-sensitive valve 2 works in middle position, actuator stop motion.
In present example, shuttle valve (4,7) C mouth is connected with hydraulic control load sensing multi-way valve 2a1, b1 mouth, the first shuttle valve 4, 7C mouth operating pressure controls hydraulic control load sensing multi-way valve 2 job order and valve opening amount.
Seeing the electro-hydraulic dual control schematic diagram that Fig. 4, Fig. 4 are present example, air relief valve 9 and load sensitive pump are connected as electro-hydraulic Double-control system provides high pressure fuel source, when decompression overflow valve 5 obtains automatically controlled signal, and the output of its A mouth controls pressure accordingly, and now first Shuttle valve 4C mouth pressure is identical with decompression overflow valve 5A mouth pressure.First shuttle valve 4C mouth is with hydraulic control load sensing multi-way valve 2b1 mouth even Connecing, control hydraulic control load sensing multi-way valve 2 and work in bottom, its valve opening is corresponding with decompression overflow valve 5 operating pressure.When second Electricity ratio decompression overflow valve 6 obtains automatically controlled signal, and the output of its A mouth controls pressure, now the second shuttle valve 7C mouth pressure and electricity accordingly Ratio decompression overflow valve 6A mouth pressure is identical.Second shuttle valve 7C mouth is connected with hydraulic control load sensing multi-way valve 2b1 mouth, controls hydraulic control Load sensing multi-way valve 2 works in upper, and its valve opening is corresponding with the second electricity ratio decompression overflow valve 6 operating pressure.
When the first electricity ratio decompression overflow valve 5,6 cannot normally work, manual operation Hydraulic guide control valve 8 controls hands Handle, stirs handle and makes A mouth pressure output control, the first shuttle valve 4C mouth operating pressure and Hydraulic guide control valve 8A mouth output pressure Identical, control hydraulic control load sensing multi-way valve 2 and work in bottom, its valve opening and Hydraulic guide control valve 8A mouth output pressure pair Should;Manual operation Hydraulic guide control valve 8 joystick, stirs handle and makes B mouth pressure output control, the second shuttle valve 7C mouth work Pressure is identical with Hydraulic guide control valve 8B mouth output pressure, controls hydraulic control load sensing multi-way valve 2 and works in upper, and its valve is opened Spend corresponding with Hydraulic guide control valve 8B mouth output pressure;
In actual applications, electro-hydraulic dual control hydraulic system forms shuttle valve network by shuttle valve 4,7, can automatically select control oil Source, can conveniently realize power and energy between automatically controlled and hydraulic control.When electric-control system breaks down, can in the case of non-stop-machine, Handle Hydraulic guide control valve, control actuator and normally work.
Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.
Although the most more employing load sensitive pump 1, hydraulic control load sensing multi-way valve 2, actuator the 3, first shuttle Valve 4, first electricity ratio decompression overflow valve the 5, second electricity ratio decompression overflow valve the 6, second shuttle valve 7, Hydraulic guide control valve 8, subtract The terms such as pressure valve 9, fuel tank 10, but it is not precluded from using the probability of other term.These terms are used to be only used to more square Just the essence of the present invention is described and explained;Being construed as any additional restriction is all to disagree with spirit of the present invention The back of the body.

Claims (6)

1. a truck-mounted drilling rig electro-hydraulic dual control hydraulic system, it is characterised in that including:
Shuttle valve (4,7), its first input port A is connected with the delivery outlet of Hydraulic guide control valve (8), its second input port B and electricity The delivery outlet of ratio decompression overflow valve (5,6) is connected, and its delivery outlet C is connected with the input port of liquor controlled multipath (2);
Actuator (3), is connected with the delivery outlet of liquor controlled multipath (2).
A kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic system the most according to claim 1, it is characterised in that described shuttle valve and electricity Ratio decompression overflow valve is two, wherein:
First input port A of the first shuttle valve (4) is connected with the first delivery outlet A of Hydraulic guide control valve (8), its second input port The delivery outlet of B and first electricity ratio decompression overflow valve (5) is connected;
First input port A of the second shuttle valve (7) is connected with the second delivery outlet B of Hydraulic guide control valve, its second input port B with The delivery outlet of the second electricity ratio decompression overflow valve (6) is connected;
The delivery outlet of described first shuttle valve (4) and the second shuttle valve (7) connects the different of liquor controlled multipath (2) respectively and controls input Mouthful.
A kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic system the most according to claim 1, it is characterised in that also include: with electricity The air relief valve (9) that ratio decompression overflow valve (5,6), Hydraulic guide control valve (8) are connected.
4. a truck-mounted drilling rig electro-hydraulic dual control hydraulic control method, it is characterised in that including:
Electrical-liquid control step, is connected electricity ratio decompression overflow valve (5,6) and liquor controlled multipath (2) by shuttle valve (4,7), by electricity Ratio decompression overflow valve (5,6) controls liquor controlled multipath (2) and realizes the action control of actuator (3);
Hydraulic guide control step, connects Hydraulic guide control respectively by the first input port and second input port of shuttle valve (4,7) Valve (8) and electricity ratio decompression overflow valve (5,6), by pressure in Hydraulic guide control valve (8) and electricity ratio decompression overflow valve (5,6) The higher person controls the action of actuator by liquor controlled multipath (2).
A kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic control method the most according to claim 4, it is characterised in that
In described electrical-liquid control step: after the first electricity ratio decompression overflow valve (5) obtains automatically controlled signal, its A mouth exports Controlling pressure accordingly, the A mouth pressure of the C mouth pressure of the first shuttle valve (4) and the first electricity ratio decompression overflow valve (5) is identical, and first The C mouth of shuttle valve (4) is connected with the b1 mouth of hydraulic control load sensing multi-way valve (2), controls hydraulic control load sensing multi-way valve (2) and works in Bottom, its valve opening is corresponding with the operating pressure of the first electricity ratio decompression overflow valve (5);
When the second electricity ratio decompression overflow valve (6) obtains automatically controlled signal, and the output of its A mouth controls pressure, now the second shuttle valve accordingly (7) C mouth pressure and the A mouth pressure of the second electricity ratio decompression overflow valve (6) are identical, and the C mouth of the second shuttle valve (7) loads with hydraulic control The a1 mouth of sensing multi-way valve (2) connects, and controls hydraulic control load sensing multi-way valve (2) and works in upper, its valve opening and electricity ratio Decompression overflow valve operating pressure is corresponding.
A kind of truck-mounted drilling rig electro-hydraulic dual control hydraulic control method the most according to claim 4, it is characterised in that hydraulic pilot In rate-determining steps:
When electricity ratio works as decompression overflow valve (5,6) with hydraulic control pilot valve (8) action simultaneously, the C mouth operating pressure of shuttle valve (4,7) Identical when decompression overflow valve (5,6) and both middle the higher person operating pressures of hydraulic control pilot-actuated valve (8) with electricity ratio;
Wherein, the C mouth of the first shuttle valve (4) is connected with the b1 mouth of hydraulic control load sensing multi-way valve (2), the C mouth of the second shuttle valve (7) with The a1 mouth of hydraulic control load sensing multi-way valve (2) connects;Control hydraulic control respectively by the first shuttle valve (4) and the second shuttle valve (7) to load Sensing multi-way valve (2) switches between upper bottom.
CN201610768943.8A 2016-08-30 2016-08-30 A kind of electro-hydraulic dual control hydraulic system of truck-mounted drilling rig and method Active CN106321541B (en)

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CN106762916A (en) * 2017-02-28 2017-05-31 徐工集团工程机械有限公司 Work connection, load sensing multi-way valve and engineering machinery
CN109642591A (en) * 2017-02-20 2019-04-16 日立建机株式会社 Engineering machinery
CN109723694A (en) * 2019-01-30 2019-05-07 柳州柳工液压件有限公司 Electric control multi-way valve
CN110352151A (en) * 2017-07-28 2019-10-18 日立建机株式会社 Braking system
CN111350459A (en) * 2020-03-12 2020-06-30 中煤科工集团西安研究院有限公司 Double-diesel-engine power vehicle-mounted drilling machine and control method thereof
CN111627284A (en) * 2020-06-08 2020-09-04 湖南翰坤实业有限公司 VR-based children earthquake safety education simulation system and method
CN113757203A (en) * 2021-09-13 2021-12-07 徐工集团工程机械股份有限公司科技分公司 Loader electric control hydraulic system and loader

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CN111627284A (en) * 2020-06-08 2020-09-04 湖南翰坤实业有限公司 VR-based children earthquake safety education simulation system and method
CN113757203A (en) * 2021-09-13 2021-12-07 徐工集团工程机械股份有限公司科技分公司 Loader electric control hydraulic system and loader
CN113757203B (en) * 2021-09-13 2022-04-15 徐工集团工程机械股份有限公司科技分公司 Loader electric control hydraulic system and loader

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