CN104695852B - There is the coal bed gas drilling machine of mixed power plant and multi-motor driving - Google Patents
There is the coal bed gas drilling machine of mixed power plant and multi-motor driving Download PDFInfo
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- CN104695852B CN104695852B CN201510041648.8A CN201510041648A CN104695852B CN 104695852 B CN104695852 B CN 104695852B CN 201510041648 A CN201510041648 A CN 201510041648A CN 104695852 B CN104695852 B CN 104695852B
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Abstract
There is the coal bed gas drilling machine of mixed power plant and multi-motor driving, belong to mechanical field, it includes Diesel engine, controller, 5 converters, 5 motor, 5 relief valve, 4 check valves, 5 bi-bit bi-pass proportioning valves, Diesel engine connects electromotor, Diesel engine and 5 bi-bit bi-pass proportioning valves connect controller respectively, it is characterized in that electromotor connects electric power source distribution device, electrical storage device respectively；Electromotor is generated electricity and is supplied the dragging motor of each hydraulic pump, and unnecessary electric energy is stored in electrical storage device.The electric machine speed regulation that the present invention is realized dragging rig main hydraulic system hydraulic pump by converter controls.The hoisting system of main hydraulic system uses and imports and exports independent control and flow regeneration techniques.Use secondary adjusting hydrostatic drive technology to realize energy regenerating and re-using in winch hydraulic system of working, unit head rotary work hydraulic system uses two-way variable displacement pump double-action variable displacement motor enclosed volume speed-modulating loop, improves hydraulic system efficiency.
Description
Technical field
The invention belongs to mechanical field, be specifically related to a kind of all-hydraulic coal bed gas drilling machine with mixed power plant and set
Standby, specifically there is serial mixed power device and use the all-hydraulic coal seam pneumatic drill of frequency control and Energy Recovery Technology
Machine.
Background technology
Coal bed gas belongs to from the Unconventional forage being conigenous storage formula.Exploitation has independent intellectual property right coal bed gas drilling machine to slow
Solving the imbalance between supply and demand of the energy, the energy strategy of the Implement of sustainable development has particularly significant realistic meaning.
Existing coal bed gas drilling machine is with Diesel engine as power set, and power is transferred to multiple stage hydraulic pressure by transfer case
Pump, is that hydraulic energy carries out rig operation by changes mechanical energy.Operationally, load change is big, this and coal seam for complete machine hydraulic system
During the work of pneumatic drill machine, operating mode is changeable relevant, as duty has: rig lifting, derrick landing, make a trip, creep into, back reaming, on
Shackle and rig tool etc..During various operating mode, load change is big.For meeting complete machine dynamic property requirement, configured Diesel engine is not
Only installed power is big, and is always operating at high speed area, so that when the little load behavior of rig, engine fuel economy
Poor, simultaneously because changing load, the fluctuation of Diesel engine working speed can be caused relatively big, cause diesel engine fuel-firing consumption
Increase.
Realize machine energy-saving consumption reduction in engineering machinery field at present, mainly have hydraulic system and the unit using efficient energy-saving
Part, employing have the advanced diesel engine power device of economic low emission, tracking load change dynamically regulates Diesel engine
Accelerator open degree realizes rotary speed of diesel engine steady operation in power-saving technologies such as economical and efficient districts.But the liquid only with efficient energy-saving
Pressure element and system, the Diesel engine mated for meeting peak load requirements, diesel oil when the most easily occurring in most operating mode
Electromotor works in the high rate of fuel consumption district of the little load of high rotating speed, machine energy-saving poor effect.By dynamically adjusting Diesel engine
It is stable in economical and efficient district that accelerator open degree realizes rotary speed of diesel engine, can realize Diesel engine and load to a certain extent
Power match, improves economy, but for there is the coal bed gas drilling machine of many pumps multiloop hydraulic system due to load change acutely,
And the response lag of diesel engine flywheel, throttle dynamically regulates and the most easily makes Diesel engine oil consumption increase, discharge performance
Being deteriorated, if so using mixed power plant in coal bed gas drilling machine, then being conducive to stablizing Diesel engine load, optimizing bavin
Oil turbine operation interval, reduces complete machine fuel oil and consumes and noxious emission.
Hybrid power type of drive mainly has two kinds: serial mixed power drives and parallel type hybrid dynamic drives.Pin
Have many pumps multiloop hydraulic system to coal bed gas drilling machine, each loop load intrinsic speed property difference is relatively big, whole in order to realize
The power match of machine, in order to realize the power match of complete machine, first requires the economical and efficient of hydraulic system, and inevitable requirement is to mainly
The rotating speed of hydraulic system hydraulic pump, the real-time control of discharge capacity, owing to parallel type hybrid dynamic mode is that electromotor is total to motor
With driving dynamical element, for coal bed gas drilling machine split-pump hydraulic system, owing to transfer gear power coupling can be inevitable to each liquid
The working speed of press pump produces interference, affects system effectiveness, therefore parallel type hybrid dynamic mode is not suitable for coal bed gas drilling machine, institute
Think that the economical and efficient fully realizing Diesel engine runs, stablize Diesel engine load, it is achieved to main hydraulic system liquid
Press pump performance accurately controls, it is achieved hydraulic system and driving motor are energy-efficient so that complete machine economical operation efficient work.
Summary of the invention:
Problem to be solved by this invention is the matching problem of hydraulic system and engine power, makes both fully realize merit
Rate is most preferably mated, thus reaches energy-saving and cost-reducing purpose.
The present invention drives electromotor by Diesel engine, it is achieved Diesel engine load, stabilization of speed, works in economy
Efficiently district.
Electromotor is generated electricity and is supplied the dragging motor of each hydraulic pump, and unnecessary electric energy is stored in electrical storage device；Real by converter
Now the electric machine speed regulation dragging rig main hydraulic system hydraulic pump is controlled.The hoisting system of main hydraulic system uses and imports and exports
Independent control and flow regeneration techniques.
Secondary adjusting hydrostatic drive technology is used to realize energy regenerating and re-using in winch hydraulic system of working,
Unit head rotary work hydraulic system uses two-way variable displacement pump double-action variable displacement motor enclosed volume speed-modulating loop, improves hydraulic pressure
System effectiveness；Use individual motor type of drive at each major loop of hydraulic system, be beneficial to eliminate load coupling and cause hydraulic pressure
The interference of revolution speed, it is easy to accomplish related control strategies.
Technical scheme:
There is the coal bed gas drilling machine of mixed power plant and multi-motor driving, including Diesel engine, Diesel engine with
Rated speed steady operation, drawing generator work output electric energy, electric energy mainly supplies electric motor operation, and unnecessary electric energy is stored in storage
In electric installation.
Controller controls the first converter, the second converter, the 3rd converter, the 4th frequency conversion according to corresponding control strategy
Device, the 5th converter supply frequency output so that the first motor, the second motor, three-motor, the 4th motor,
5th motor is respectively with corresponding rotary speed working.
First motor run constant-pressure variable hydraulic pump works, constant-pressure variable hydraulic pump, the first check valve, accumulator form
Constant pressure source, constant-pressure variable hydraulic pump oil-out is connected with electrohydraulic proportion variable hydraulic pump motor, and constant-pressure variable hydraulic pump exports
Hydraulic energy electrohydraulic proportion variable hydraulic pump motor be converted into mechanical energy export and pass through first decelerator drive winch rotation
Turning, winch rotary speed changes electric-hydraulic proportion hydraulic pump motor swashplate angle by variable device and controls.
When winch inverted running, the variable that controller output control signal configures to electrohydraulic proportion variable hydraulic pump motor
Device, changes the swashplate angle zero crossing of electrohydraulic proportion variable hydraulic pump motor so that electrohydraulic proportion variable hydraulic pump horse
Reach and work in hydraulic pump operating mode, input high pressure liquid force feed to accumulator.
It is arranged in the speed probe at winch rotating shaft in real time to the tach signal of controller feedback winch, if rotating speed mistake
Height, then controller controls the variable device of electrohydraulic proportion variable hydraulic pump motor to increasing the motion of discharge capacity direction；Otherwise then subtract
Small displacement, effectively controls winch and reversely rotates speed.
When electrohydraulic proportion variable hydraulic pump motor is operated in pump condition, controller controls the output electricity of the first converter
Source frequency, reduces the rotating speed of constant-pressure variable hydraulic pump dragging motor one, reduces energy consumption.
Second converter output frequency is the alternating current power supply as the second motor of 50Hz.Second motor output shaft
Being connected with the first variable delivery hydraulic pump shaft, the second motor drives variable delivery hydraulic pump work, the first volume adjustable hydraulic pump with rated speed
Enclosed volume speed-modulating loop is formed with constant displacement hydraulic motor.The oil-out of the first volume adjustable hydraulic pump is connected with constant displacement hydraulic motor,
The output shaft of constant displacement hydraulic motor is connected with pump shaft, drives pump working.
The output shaft of three-motor is connected with electro-hydraulic two-way proportional variable delivery hydraulic pump shaft, electro-hydraulic two-way proportional variable delivery hydraulic
Pump two hydraulic fluid port is connected with two hydraulic fluid ports of bidirectional variable hydraulic motor respectively, forms enclosed volume speed-modulating loop, bidirectional variable hydraulic pressure
Motor and the second reducer input shaft are connected, and the second reducer output shaft is connected with rotary power head, are assemblied in electro-hydraulic two-way ratio
The pressure transducer of example volume adjustable hydraulic pump oil port, the swash plate sensor being assemblied on this pump, be assemblied in three-motor output
Speed probe at axle and be assemblied in the speed probe Real-time Feedback pressure at the second reducer output shaft, swash plate inclines
Angle, the rotating speed of motor, the rotating speed of rotary power head according to controlling requirement, control the 3rd converter to controller, controller
Out-put supply frequency and the motion of electrohydraulic proportion variable hydraulic pump variable device change swashplate angle, it is achieved motor power (output) as far as possible with
Bearing power matches, and improves system effectiveness.
The output shaft of the 5th motor is connected with electrohydraulic proportion variable hydraulic pump shaft, electrohydraulic proportion variable hydraulic pump fuel-displaced
Mouth is connected with a valve port of the first bi-bit bi-pass proportioning valve, the second bi-bit bi-pass proportioning valve, the first bi-bit bi-pass proportioning valve
Another valve port is connected with lifting hydraulic cylinder rod chamber, second another valve port of bi-bit bi-pass proportioning valve and lifting hydraulic cylinder rodless cavity phase
Even, a valve port of the 3rd bi-bit bi-pass proportioning valve another valve port that is connected with fuel tank is connected with the rod chamber of lifting hydraulic cylinder, the
One valve port of four bi-bit bi-pass proportioning valves another valve port that is connected with fuel tank is connected with the rodless cavity of lifting hydraulic cylinder.Controller is defeated
Go out signal control aforementioned four bi-bit bi-pass proportioning valve spool displacement amount and i.e. realize the control to valve port opening, thus realize act
Rise hydraulic cylinder and import and export independent control, it is achieved to the lifting hydraulic cylinder direction of motion and the control of speed.
The swash plate be assemblied in the speed probe at the 5th motor output shaft, being assemblied on electrohydraulic proportion variable hydraulic pump
Pressure transducer Real-time Feedback pressure signal at obliquity sensor and oil-out, swashplate angle signal, tach signal extremely control
Device, comprehensive first bi-bit bi-pass proportioning valve, the second bi-bit bi-pass proportioning valve, the 3rd bi-bit bi-pass proportioning valve, the 4th bi-bit bi-pass
The spool displacement amount of proportioning valve, controls the motion of electrohydraulic proportion variable hydraulic pump variable device, determines pump delivery.Five or two two
Two hydraulic fluid ports of logical proportioning valve are connected respectively at two chambeies of lifting hydraulic cylinder, when hydraulic cylinder piston declines, and controller controls first
Bi-bit bi-pass proportioning valve, the second bi-bit bi-pass proportioning valve, the 3rd bi-bit bi-pass proportioning valve valve port are closed, the 5th bi-bit bi-pass ratio
Valve valve port standard-sized sheet, the 4th bi-bit bi-pass proportioning valve valve port part is opened, it is achieved flow regenerates.Controller controls the 5th frequency conversion simultaneously
Device out-put supply frequency, reduces the working speed of the 5th motor, it is achieved energy-conservation.
4th converter output frequency is the alternating current power supply as the 4th motor of 50Hz, the output of the 4th motor
Axle with auxiliary transfer gear power shaft be connected, auxiliary transfer gear output shaft respectively with quantitative hydraulic pump and the second volume adjustable hydraulic pump phase
Connection, the outlet pressure of quantitative hydraulic pump is determined by overflow valve set pressure, as slippage pump.Second volume adjustable hydraulic pump oil-out with
Attached hydraulic system is connected, it is provided that hydraulic energy.
The present invention has a following beneficial effect:
1, using serial mixed power device, Diesel engine can run continuously in most economical operating point, and rotating speed is steady
Fixed, beneficially Diesel engine is operated in economical and efficient district, is also beneficial to reduce noxious emission.
2, use many motor driving systems, variable-frequency control technique can be used for coal bed gas drilling machine hydraulic system, can basis
In hydraulic system, the change of the load characteristic in each loop regulates each motor speed, thus changes hydraulic pump rotating speed so that each electricity
The output of motivation and corresponding hydraulic circuit bearing power reach Automatic adjusument, reduce power attenuation, improve system effectiveness.
Total drive system removes transfer gear, it is also possible to avoid the rotating speed interference that in existing system, load coupling is caused, relax hydraulic pressure
Impact.
3, in coal bed gas drilling machine main hydraulic system in hoister system, electrohydraulic proportion variable hydraulic pump motor secondary is used
Element, it is achieved when reversely rotating winch, potential energy reclaims, improves system effectiveness.Hydraulic pressure is lifted in coal bed gas drilling machine main hydraulic system
In cylinder system, utilize five bi-bit bi-pass proportioning valves to realize lifting hydraulic cylinder and import and export independence and flow regeneration, in conjunction with electro-hydraulic
Rate variable hydraulic pump, reduces energy loss, it is achieved energy regenerating, improves system effectiveness.At water pump hydraulic system and unit head
Rotary system uses enclosed volumetric speed control hydraulic circuit, reduces energy expenditure, improve system effectiveness.
4, use energy regenerating, high efficient and energy saving hydraulic loop and element, variable-frequency control technique etc., diesel oil can be effectively reduced and send out
The installed power of motivation, and this is to compensate serial mixed power device to arrange due to the highest most effective of energy repeatedly transformation efficiency
Execute.
Accompanying drawing explanation
Fig. 1 is the structure diagram that the present invention has the multi-motor driving dynamical system of mixed power plant.
In figure, 1 Diesel engine；2 electromotors；3 electrical storage devices；4 electric power source distribution devices；5 first converters；
6 first motor；7 first check valves；8 accumulators；9 electrohydraulic proportion variable hydraulic pump motors；10 winches；
11 first decelerators；12 first relief valve；13 constant pressure variable displacement pumps；14 second converters；15 second motor；
16 first volume adjustable hydraulic pumps；17 second relief valve；18 water pumps；19 constant displacement hydraulic motors；20 the 3rd converters；
21 three-motors；22 electro-hydraulic two-way proportional volume adjustable hydraulic pumps；23 the 3rd relief valve；24 second check valves；25—
4th relief valve；26 controllers；27 the 3rd check valves；28 rotary power heads；29 the 4th check valves；30 overflows
Valve；31 auxiliary transfer gears；32 the 4th motor；33 the 4th converters；34 auxiliary hydraulic systems；35 quantitative hydraulics
Pump；36 second volume adjustable hydraulic pumps；37 first bi-bit bi-pass proportioning valves；38 bidirectional variable hydraulic motors；40 the 2nd 2
Position two-way proportioning valve；41 the 4th bi-bit bi-pass proportioning valves；42 the 5th bi-bit bi-pass proportioning valves；43 the 5th relief valve；
44 electrohydraulic proportion variable hydraulic pumps；45 lifting hydraulic cylinders；46 the 5th motor；47 the 5th converters；48 the 3rd
Bi-bit bi-pass proportioning valve；50 second decelerators.
Detailed description of the invention:
The present invention is further described below in conjunction with the accompanying drawings.
The freewheel output of Diesel engine (1) is connected with electromotor (2), and Diesel engine (1) is stable with economic speed
Work (the present embodiment configuration Diesel engine be 1700 revs/min, drawing generator (2) work output electric energy, electric energy mainly for
To electric motor operation, unnecessary electric energy is stored in electrical storage device (3).First converter (5) is connected with the first motor (6), and the 3rd
Converter (20) is connected with three-motor (21), and the 5th converter (47) is connected with the 5th motor (46), controller (26)
According to corresponding control strategy control the first converter (5), the 3rd converter (20), the 5th converter (47) supply frequency defeated
Go out, control the first motor (6), three-motor (21), the 5th motor (46) each with corresponding rotary speed working, the second converter
(14) being connected with the second motor (15), the 4th converter (33) is connected with the 4th motor (32), the second converter (14) with
4th converter (33) output frequency 50Hz power supply, the second motor (15), the 4th motor (32) all work with rated speed.
The output shaft of the first motor (6) is connected with constant-pressure variable hydraulic pump (7) axle, drags constant pressure variable displacement pump (13)
Work, constant-pressure variable hydraulic pump (13) oil-out passes through the first check valve (7) and electrohydraulic proportion variable hydraulic pump motor (9) phase
Even, output shaft and the first decelerator (11) power shaft of electrohydraulic proportion variable hydraulic pump motor (9) are connected, the first decelerator
(11) output shaft is connected with winch (10) axle.Constant-pressure variable hydraulic pump (13), the first check valve (7) and accumulator (8) composition perseverance
Force feed source.It is defeated that the hydraulic energy that constant pressure variable displacement pump (13) exports is converted into mechanical energy at electrohydraulic proportion variable hydraulic pump motor (9)
Go out and drive winch (10) to rotate by the first decelerator (11), be assemblied in the speed probe at winch (10) axle and electric-hydraulic proportion
Volume adjustable hydraulic pump motor (9) swashplate angle sensor Real-time Feedback winch rotary speed and swashplate angle signal are to controller
(26), when winch inverted running, controller (26) output control signal is to the variable of electrohydraulic proportion variable hydraulic pump motor (9)
Device, changes the swashplate angle zero crossing of electrohydraulic proportion variable hydraulic pump motor (9) so that electrohydraulic proportion variable hydraulic pump
Motor (9) works in hydraulic pump operating mode, inputs high pressure liquid force feed to accumulator (8).
If rotating speed too high (such as 220 revs/min), controller (26) controls electrohydraulic proportion variable hydraulic pump motor (9)
Variable device to increase discharge capacity direction motion, otherwise then reduce discharge capacity, effectively control winch (10) reversely rotate speed.At electricity
When liquid proportional volume adjustable hydraulic pump motor (9) is operated in pump condition, controller (26) controls the out-put supply of the first converter (5)
Frequency, reduces constant-pressure variable hydraulic pump (13) and drags the rotating speed of the first motor (6), reduce energy consumption.First relief valve (12) rises
Overload protective function, limits the maximum pressure of constant-pressure variable hydraulic pump (13).
Second converter (14) output frequency is the alternating current power supply as the second motor (15) of 50Hz.Second is electronic
Machine (15) output shaft and the first volume adjustable hydraulic pump (16) axle are connected, and the second motor (15) drives the first variable liquid with rated speed
Press pump (16) works, and the oil inlet and outlet of the first volume adjustable hydraulic pump (16) is connected with two hydraulic fluid ports of constant displacement hydraulic motor (19), group
Becoming volume speed-modulating loop, quantitative hydraulic pump (35) passes through the first check valve (24) to this loop repairing.Constant displacement hydraulic motor (19)
Output shaft be connected with water pump (18) axle, drive water pump (18) work.Second relief valve (17) plays overload protective function, limits the
The maximum pressure of one volume adjustable hydraulic pump (16).
The output shaft of three-motor (21) is connected with electro-hydraulic two-way proportional volume adjustable hydraulic pump (22) axle, electro-hydraulic two-way proportional
Volume adjustable hydraulic pump (22) two hydraulic fluid port two hydraulic fluid ports with bidirectional variable hydraulic motor (38) respectively are connected, and form volume speed-modulating loop,
Quantitative hydraulic pump (35) passes through the 3rd check valve (27), the 4th check valve (29) to this loop repairing.
It is assemblied in the electro-hydraulic two-way ratio of pressure transducer Real-time Feedback of electro-hydraulic two-way proportional volume adjustable hydraulic pump (22) oil port
The pressure of example volume adjustable hydraulic pump (22) oil port is to controller (26)；
It is assemblied in the swash plate sensor Real-time Feedback on electro-hydraulic two-way proportional volume adjustable hydraulic pump (22)
The swash plate angle of inclination of electro-hydraulic two-way proportional volume adjustable hydraulic pump (22) to controller (26)；
It is assemblied in the rotating speed of speed probe Real-time Feedback three-motor (21) at three-motor (38) output shaft
To controller (26)；
Bidirectional variable hydraulic motor (21) is connected with rotary power head (28) by the second decelerator (50), is assemblied in second
Speed probe Real-time Feedback rotary power head (28) rotating speed at decelerator (50) output shaft is to controller (26)；
When rotary power head (28) starts to creep into, variable hydraulic motor discharge capacity is maximum, and controller (26) controls electro-hydraulic ratio
The motion of example volume adjustable hydraulic pump (22) variable device changes swashplate angle and increases its discharge capacity, when dynamic rotation head rotating speed turns more than setting
During speed, controller (26) is according to controlling requirement, and the out-put supply frequency reducing the 3rd converter (20) reduces three-motor
(38) rotating speed and the motion of electrohydraulic proportion variable hydraulic pump (22) variable device change swashplate angle and increase its discharge capacity, thus improve the
Three-motor (38) and electrohydraulic proportion variable hydraulic pump (22) efficiency, reduce energy consumption.
Controller (26), according to controlling requirement, controls out-put supply frequency and the electrohydraulic proportion variable of the 3rd converter (20)
The motion of hydraulic pump (22) variable device changes swashplate angle,
3rd relief valve (23), the 4th relief valve (25) play overload protective function.
The output shaft of the 5th motor (46) is connected with electrohydraulic proportion variable hydraulic pump (44) axle, electrohydraulic proportion variable hydraulic pressure
One valve port of the oil-out of pump (44) and the first bi-bit bi-pass proportioning valve (37), the second bi-bit bi-pass proportioning valve (40) is connected,
Another valve port of first bi-bit bi-pass proportioning valve (37) is connected with lifting hydraulic cylinder (45) rod chamber, the second bi-bit bi-pass proportioning valve
(40) another valve port is connected with lifting hydraulic cylinder rodless cavity (45), a valve port of the 3rd bi-bit bi-pass proportioning valve (48) and fuel tank
Another valve port connected is connected with the rod chamber of lifting hydraulic cylinder (45), a valve port of the 4th bi-bit bi-pass proportioning valve (41) and oil
Case another valve port that is connected is connected with the rodless cavity of lifting hydraulic cylinder (45).
Controller (26) output signal controls aforementioned four bi-bit bi-pass proportioning valve spool displacement amount and realizes valve port opening
Control, thus realize lifting hydraulic cylinder (45) is imported and exported independent control, it is achieved to lifting hydraulic cylinder (45) direction of motion and
The control of speed.
It is assemblied in the rotating speed of speed probe Real-time Feedback the 5th motor (46) at the 5th motor (46) output shaft
Signal, and the 5th motor (46) tach signal is delivered to controller (26),
The swashplate angle sensor Real-time Feedback electrohydraulic proportion variable liquid being assemblied on electrohydraulic proportion variable hydraulic pump (44)
The swashplate angle signal of press pump (44), and electrohydraulic proportion variable hydraulic pump (44) swashplate angle signal is delivered to controller (26),
It is assemblied in the pressure transducer Real-time Feedback electrohydraulic proportion variable at electrohydraulic proportion variable hydraulic pump (44) oil-out
Hydraulic pump (44) pressure signal, and electrohydraulic proportion variable hydraulic pump (44) pressure signal is delivered to controller (26)；
Comprehensive first bi-bit bi-pass proportioning valve (37), the second bi-bit bi-pass proportioning valve (40), the 3rd bi-bit bi-pass proportioning valve
(48), the spool displacement amount of the 4th bi-bit bi-pass proportioning valve (41), control electrohydraulic proportion variable hydraulic pump (44) variable device fortune
Dynamic, determine the discharge capacity of electrohydraulic proportion variable hydraulic pump (44).
Two hydraulic fluid ports of the 5th bi-bit bi-pass proportioning valve (42) two chambeies with lifting hydraulic cylinder (45) respectively are connected, and work as lifting
Hydraulic cylinder piston declines, controller (26) control the first bi-bit bi-pass proportioning valve (37), the second bi-bit bi-pass proportioning valve (40), the
Three bi-bit bi-pass proportioning valve (48) valve ports are closed, the 5th bi-bit bi-pass proportioning valve (42) valve port standard-sized sheet, the 4th bi-bit bi-pass ratio
Valve (41) valve port part is opened, it is achieved flow regenerates.Controller (26) controls the 5th converter (47) out-put supply frequency simultaneously,
Reduce the working speed of the 5th motor (46), it is achieved energy-conservation.5th relief valve (43) plays overload protective function.
4th converter (33) output frequency is the alternating current power supply as the 4th motor (32) of 50Hz, and the 4th is electronic
The output shaft of machine (32) with auxiliary transfer gear (31) power shaft be connected, auxiliary transfer gear (31) output shaft respectively with quantitative hydraulic pump
(35) and the second volume adjustable hydraulic pump (36) is connected, and the outlet pressure of quantitative hydraulic pump (35) is true by overflow valve (30) set pressure
Fixed, as slippage pump.Second volume adjustable hydraulic pump (36) oil-out is connected with attached hydraulic system, it is provided that hydraulic energy.
Illustrate: in the present embodiment, winch rotating speed 160 ~ 220rpm, controller model: Germany dspace ITI 1103.
Claims (6)
1. there is the coal bed gas drilling machine of mixed power plant and multi-motor driving, including Diesel engine (1), controller (26), 5
Individual converter, 5 motor, 5 relief valve, 4 check valves, 5 bi-bit bi-pass proportioning valves, Diesel engine (1) connects to be sent out
Motor (2), Diesel engine (1) and 5 bi-bit bi-pass proportioning valves connect controller (26) respectively, it is characterized in that electromotor (2)
Connect electric power source distribution device (4), electrical storage device (3) respectively；
Electric power source distribution device (4) connects 5 converters respectively；First converter (5) connects the first motor (6), the first motor
(6) connecting constant-pressure variable hydraulic pump (13), constant-pressure variable hydraulic pump (13) connects the first check valve (7), the first relief valve respectively
(12), the first relief valve (12) connects accumulator (8), electrohydraulic proportion variable hydraulic pump motor (9), electrohydraulic proportion variable respectively
Hydraulic pump motor (9) connects the first decelerator (11), the first decelerator (11) connection winch (10)；
Second converter (14) connects the second motor (15), the second motor (15) link variable hydraulic pump (16), variable liquid
Press pump (16) connects the second relief valve (17), fixed displacement motor (19) respectively, and fixed displacement motor (19) connects water pump (18)；
3rd converter (20) connects three-motor (21), and three-motor (21) connects electro-hydraulic two-way proportional volume adjustable hydraulic pump
(22), electro-hydraulic two-way proportional volume adjustable hydraulic pump (22) connects the 3rd relief valve (23), the 3rd check valve (27), the 4th unidirectional respectively
Valve (29), the 4th relief valve (25), bidirectional variable hydraulic motor (38), bidirectional variable hydraulic motor (38) connects the second decelerator
(50), the second decelerator connects rotary power head (28)；
4th converter (33) connects the 4th motor (32), and the 4th motor (32) connects auxiliary transfer gear (31), auxiliary point
Dynamic device (31) connects quantitative hydraulic pump (35), volume adjustable hydraulic pump (36) respectively, and quantitative hydraulic pump (35) connects overflow valve respectively
(30), between the 3rd check valve (27) and the 4th check valve (29)；Volume adjustable hydraulic pump (36) connects auxiliary hydraulic system (34)；
5th converter (47) connects the 5th motor (46), and the 5th motor (46) connects electrohydraulic proportion variable hydraulic pump
(44), electrohydraulic proportion variable hydraulic pump (44) connect respectively the 5th relief valve (43), the first bi-bit bi-pass proportioning valve (37), second
Bi-bit bi-pass proportioning valve (40), the first bi-bit bi-pass proportioning valve (37) connect respectively the 3rd bi-bit bi-pass proportioning valve (48), the 5th
Bi-bit bi-pass proportioning valve (42), lifting hydraulic cylinder (45)；Between second bi-bit bi-pass proportioning valve (40) and lifting hydraulic cylinder (45)
Connecting line on connect the 4th bi-bit bi-pass proportioning valve (41)；
Volume adjustable hydraulic pump (16) and the connecting line of fixed displacement motor (19) and the 3rd check valve (27) and the 4th check valve (29)
Second check valve (24) is installed between connecting line.
The most according to claim 1, there is the coal bed gas drilling machine of mixed power plant and multi-motor driving, it is characterised in that send out
Motor (2) generated electricity can pass through electric power source distribution device (4) flow to each converter with coupling frequency supply each motor, hydraulic pressure system
Each major loop of uniting is required regulation motor speed by independent motor-driven, load characteristic and control according to each loop.
3. according to the coal bed gas drilling machine described in claim 1 with mixed power plant and multi-motor driving, it is characterised in that profit
Potential energy recovery when winch (10) reversion declines is realized with the operating mode switching between electric-hydraulic proportion volume adjustable hydraulic pump motor (19), with
Time controller (26) control the out-put supply frequency of the first converter (5), it is achieved when winch reversion declines, reduce the first motor
(6) rotating speed, reduces energy loss.
4. according to the coal bed gas drilling machine described in claim 1 with mixed power plant and multi-motor driving, it is characterised in that the
Output shaft and the first hydraulic variable displacement pump (16) axle of two motor (15) are connected, the first hydraulic variable displacement pump (16) and quantitative hydraulic horse
Reach (19) composition enclosed volume speed-modulating loop.
5. according to the coal bed gas drilling machine described in claim 1 with mixed power plant and multi-motor driving, it is characterised in that electricity
Liquid two-way proportional volume adjustable hydraulic pump (22) forms enclosed volume speed-modulating loop with bidirectional variable hydraulic motor (38)；Bidirectional variable liquid
Pressure motor (38) output shaft is connected with dynamic rotation head (28), is assemblied in the swashplate angle on electro-hydraulic two-way proportional variable pump (22)
Sensor, be assemblied in the pressure transducer at oil-out, be assemblied in speed probe at three-motor (21) output shaft and
It is assemblied in the speed probe at the second decelerator (50) output shaft Real-time Feedback pressure, swashplate angle signal, oil-out respectively
Pressure signal, motor speed signal, decelerator rotary power head tach signal are to controller (26), according to controlling requirement, control
Device processed (26) controls the power supply output frequency of the 3rd converter (20) and the variable device fortune of electrohydraulic proportion variable hydraulic pump (22)
Dynamic, it is achieved the rotating speed of three-motor (21) to be controlled and the discharge capacity regulation of electrohydraulic proportion variable hydraulic pump (22).
6. according to the coal bed gas drilling machine described in claim 1 with mixed power plant and multi-motor driving, it is characterised in that the
The output shaft of five motor (46) is connected with electrohydraulic proportion variable hydraulic pump (44) axle, going out of electrohydraulic proportion variable hydraulic pump (44)
One valve port of hydraulic fluid port and the first bi-bit bi-pass proportioning valve (37), the second bi-bit bi-pass proportioning valve (40) is connected, the one or two two
Another valve port of logical proportioning valve (37) is connected with lifting hydraulic cylinder (45) rod chamber, second bi-bit bi-pass proportioning valve (40) another valve
Mouthful being connected with lifting hydraulic cylinder (45) rodless cavity, a valve port of the 3rd bi-bit bi-pass proportioning valve (48) is connected with fuel tank another valve
Mouth is connected with the rod chamber of lifting hydraulic cylinder (45), and a valve port of the 4th bi-bit bi-pass proportioning valve (41) is connected another with fuel tank
Valve port is connected with the rodless cavity of lifting hydraulic cylinder (45)；Controller (26) output signal controls aforementioned four bi-bit bi-pass proportioning valve
Spool displacement amount i.e. realizes the control to valve port opening, thus realizes importing and exporting lifting hydraulic cylinder (45) independent control, it is achieved
To lifting hydraulic cylinder (45) direction of motion and the control of speed；It is assemblied in the revolution speed sensing at the 5th motor (46) output shaft
Device, the swashplate angle sensor being assemblied on electrohydraulic proportion variable hydraulic pump (44) and be assemblied in the pressure transducer at oil-out
Real-time Feedback motor speed signal, swashplate angle signal, oil-out pressure signal to controller (26) respectively, the comprehensive 1st
Position two-way proportioning valve (37), the second bi-bit bi-pass proportioning valve (40), the 3rd bi-bit bi-pass proportioning valve (48), the 4th bi-bit bi-pass ratio
The spool displacement amount of example valve (41), controls the motion of electrohydraulic proportion variable hydraulic pump (44) variable device, determines pump delivery；5th
Two hydraulic fluid ports of bi-bit bi-pass proportioning valve (42) are connected respectively at two chambeies of lifting hydraulic cylinder (45), when hydraulic cylinder piston declines,
Controller (26) controls the first bi-bit bi-pass proportioning valve (37), the second bi-bit bi-pass proportioning valve (40), the 3rd bi-bit bi-pass ratio
Valve (48) valve port is closed, the 5th bi-bit bi-pass proportioning valve (42) valve port standard-sized sheet, the 4th bi-bit bi-pass proportioning valve (41) valve port part
Open, it is achieved flow regenerates；Controller (26) controls the 5th converter (47) out-put supply frequency simultaneously, reduces the 5th motor
(46) working speed.
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| CN201510041648.8A CN104695852B (en) | 2015-01-28 | 2015-01-28 | There is the coal bed gas drilling machine of mixed power plant and multi-motor driving |
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| CN201510041648.8A CN104695852B (en) | 2015-01-28 | 2015-01-28 | There is the coal bed gas drilling machine of mixed power plant and multi-motor driving |
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| CN104695852B true CN104695852B (en) | 2016-09-14 |
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Cited By (1)
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| CN107537671A (en) * | 2017-08-15 | 2018-01-05 | 太原理工大学 | The disintegrating machine of combination drive |
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| CN105649639B (en) * | 2016-01-31 | 2017-12-12 | 太原理工大学 | A kind of shielding tunnel excavator hybrid drive system and its control method |
| CN108775299B (en) * | 2018-05-25 | 2019-10-29 | 太原理工大学 | A kind of rotary drilling rig of liquid electricity combination drive |
| CN111075346B (en) * | 2019-12-30 | 2024-04-16 | 无锡市钻通工程机械有限公司 | Electro-hydraulic hybrid driving system of non-excavation drilling machine and non-excavation drilling machine system |
| CN115163618A (en) * | 2022-02-22 | 2022-10-11 | 华侨大学 | Rotary driving device based on electro-hydraulic compound drive |
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| CN201934087U (en) * | 2010-11-23 | 2011-08-17 | 长沙中联重工科技发展股份有限公司 | Driving control device for rotary drilling rig and rotary drilling rig |
| CN102953677A (en) * | 2012-11-16 | 2013-03-06 | 成都宏天电传工程有限公司 | Drilling machine using motors as main power |
| CN103552457A (en) * | 2013-10-16 | 2014-02-05 | 吉林大学 | Oil/electricity hybrid power rotary drilling rig transmission system |
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| JP3895622B2 (en) * | 2002-03-25 | 2007-03-22 | 日立建機株式会社 | Hydraulic motor drive circuit, hydraulic auger |
| US6925807B2 (en) * | 2002-07-30 | 2005-08-09 | Comprehensive Power, Inc. | Actuator control system for hydraulic devices |
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Patent Citations (3)
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|---|---|---|---|---|
| CN201934087U (en) * | 2010-11-23 | 2011-08-17 | 长沙中联重工科技发展股份有限公司 | Driving control device for rotary drilling rig and rotary drilling rig |
| CN102953677A (en) * | 2012-11-16 | 2013-03-06 | 成都宏天电传工程有限公司 | Drilling machine using motors as main power |
| CN103552457A (en) * | 2013-10-16 | 2014-02-05 | 吉林大学 | Oil/electricity hybrid power rotary drilling rig transmission system |
Cited By (1)
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| CN107537671A (en) * | 2017-08-15 | 2018-01-05 | 太原理工大学 | The disintegrating machine of combination drive |
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