CN107587875A - The development machine of combination drive - Google Patents
The development machine of combination drive Download PDFInfo
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- CN107587875A CN107587875A CN201710697704.2A CN201710697704A CN107587875A CN 107587875 A CN107587875 A CN 107587875A CN 201710697704 A CN201710697704 A CN 201710697704A CN 107587875 A CN107587875 A CN 107587875A
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- motor
- hydraulic pump
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- development machine
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Abstract
The invention discloses a kind of development machine of combination drive, including cutterhead, cutting arm, decelerator, shaft coupling, action potential accumulating loop and motor compound drive system, ultracapacitor group and controller, driver motor is aided in drive development machine to work by electric ratio four-quadrant hydraulic pump/motor.The systematic capacity usage ratio height of digging implement of combination drive disclosed by the invention, reduce the advantages that installed power of driver motor.
Description
Technical field
The invention belongs to tunnelling machinery field, more particularly to a kind of development machine of combination drive.
Background technology
Development machine is mainly used in the tunnelling in mine and underground engineering, and because development machine has, driving speed is fast, lane
Road shaping it is good with stability, beneficial to supporting, quantities is small, labor intensity is low, production safety the advantages that, development machine is increasing
For in the building causes such as urban highway traffic, railway, highway, water conservancy, municipal works.
For the operating feature of development machine, the power demand of its driver motor is general very high, and this causes motor body
Product is larger, brings inconvenience to reasonable Arrangement of the motor in development machine, and development machine usually needs main motor to be in
Low-speed big operating mode, being restricted by the output torque of current motor, it is necessary to further gear reduction could realize this function, this
The overall volume of motor is allowed for further to increase.In addition, cutterhead frequent start-stop in the course of the work, when tunneling
Workload moment increases when the barriers such as rock are run into journey, and cutterhead drive motor can be made to be worked under peak power,
If overcoming peak load by increasing the installed power of motor, motor will be chronically at inefficient area, cause excessive
Energy expenditure, frequent switching working condition had a strong impact on the normal working life of motor；In addition, cutterhead retarding braking
When kinetic energy typically consumed with form of thermal energy, cause substantial amounts of energy dissipation.
The A of Publication No. CN 102420552 patent of invention discloses a kind of improvement motor start-stop performance control loop
And control method, reclaimed using accumulator and recycle the braking energy during electric motor operation, changed while reducing energy consumption
The start-stop performance of motor has been apt to it, and has improved the life-span of motor, but it is by the control to hydraulic valve that this invention, which uses,
Make realize hydraulic pump motor operating mode change, not only response speed is slow, and can produce larger restriction loss.
The content of the invention
For deficiencies of the prior art, the present invention is intended to provide a kind of development machine of combination drive, by returning
The kinetic energy of equipment braking procedure is received, improves capacity usage ratio.
The development machine of combination drive, including cutterhead (1), cutting arm (2), decelerator (3), shaft coupling (4), its feature exist
In：Also include action potential accumulating loop and motor compound drive system (21), ultracapacitor group (8) and controller (19),
Wherein, action potential accumulating loop includes with motor compound drive system：Action potential accumulating loop (20), driver motor
(5), speed probe (9), the Ith frequency converter (6.1), bidirectional DC-DC converter (7).
Described action potential accumulating loop (20) includes：Electric ratio four-quadrant hydraulic pump/motor (10), constant-pressure variable hydraulic pressure
Pump (12), hydraulic pump drive motor (18), the IIth frequency converter (6.2), safety valve (11), two-position two-way solenoid valve (13), storage
Can device (15), pressure sensor (14), displacement transducer (17) and fuel tank (16), the of electric ratio four-quadrant hydraulic pump/motor
One hydraulic fluid port P1, the oil-out of constant-pressure variable hydraulic pump, the oil inlet of safety valve, the A hydraulic fluid ports of two-position two-way solenoid valve pass through hydraulic pressure
Pipeline connection, B hydraulic fluid ports, pressure sensor and the accumulator of two-position two-way solenoid valve connect, and the output signal p of pressure sensor is defeated
Enter controller；Second hydraulic fluid port P of electric ratio four-quadrant hydraulic pump/motor2, the oil inlet of constant-pressure variable hydraulic pump, safety valve
Oil-out connects with fuel tank；The variable piston of displacement transducer and electric ratio four-quadrant hydraulic pump/motor is connected to detect it
Pivot angle changes, the output signal x input controllers of displacement transducer, the input and output end of the IIth frequency converter respectively with control
Device connects with hydraulic pump drive motor, and the output shaft of hydraulic pump drive motor connects with the drive shaft of constant-pressure variable hydraulic pump
Connect；The swash angle controller of electric ratio four-quadrant hydraulic pump/motor, the control terminal of two-position two-way solenoid valve are connected with controller.
First, second output shaft of driver motor respectively with one end of shaft coupling and the electric ratio in action potential accumulating loop
The driving axis connection of example four-quadrant hydraulic pump/motor, the other end of shaft coupling and the input axis connection of decelerator, decelerator it is defeated
One end of shaft and cutting arm is connected, and the other end of cutting arm is connected with cutterhead；The input and output end of Ith frequency converter point
It is not connected with controller and driver motor, the dc bus of the Ith frequency converter and one end of bidirectional DC-DC converter connect,
The other end of bidirectional DC-DC converter is connected to ultracapacitor group, and control terminal and the controller of bidirectional DC-DC converter connect
Connect, the first output axis connection of speed probe and main motor, its output signal n input controllers；Controller is to electric ratio
Four-quadrant hydraulic pump/motor, two-position two-way solenoid valve, bidirectional DC-DC converter, the Ith and the IIth frequency converter send control instruction.
Described constant-pressure variable hydraulic pump is the constant pressure pump of mechanical signal control or the ratio constant pressure pump of electric signal control.
Described accumulator is single hydraulic accumulator or more than two hydraulic accumulator groups.
Described action potential accumulating loop be electric ratio four-quadrant hydraulic pump/motor with constant-pressure variable hydraulic pressure pump group into two
Secondary regulating loop, or the closed circuit of electric ratio four-quadrant hydraulic pump/motor and quantitative hydraulic pump/motor composition.
Described action potential accumulating loop and motor compound drive system by control driver motor rotating speed or
The output torque and corner of driver motor, realize the control to development machine.
Compared with prior art, the development machine of combination drive provided by the invention, has the advantages that：
1st, the present invention aids in the cut of driver motor driving development machine by electric ratio four-quadrant hydraulic pump/motor
Head, on the premise of development machine momentary high power demand is met, make driver motor need not the realization of further gear reduction can
Low-speed big operating mode, the volume of main motor is reduced, provided convenience for reasonable Arrangement of the motor in development machine.
2nd, the present invention is close with reference to electrically driven high-power and hydraulic-driven high power by using hydraulic hybrid type of drive
The advantages of spending, the weight and volume of the system can be significantly reduced.
3rd, the present invention is stored the kinetic energy of development machine equipment braking procedure by electric ratio four-quadrant hydraulic pump/motor
Into hydraulic accumulator, original braking resistor can be cancelled, thus efficiency can be improved and reduce the heating of system.
4th, the present invention aids in driver motor to start by electric ratio four-quadrant hydraulic pump/motor, can reduce electronic
The installed power of machine, the operating efficiency of motor is improved, reduce the energy loss during electric motor operation.
5th, the present invention is using hydraulic accumulator group and the portion of ultracapacitor group storage development machine equipment braking procedure
Transfer energy, and peak point current is supplemented in start-up course, reduce startup electricity excessive when driver motor directly initiates
Flowing the impact on power network influences.
Brief description of the drawings
Fig. 1 is the combination drive control principle drawing of the development machine of combination drive of the present invention.
In figure：1- cutterheads；2- cutting arms；3- decelerators；4- shaft couplings；5- driver motors；The frequency conversions of 6.1- the Ith
Device；The frequency converters of 6.2- the IIth；7- bidirectional DC-DC converters；8- ultracapacitor groups；9- speed probes；10- electricity ratio four-quadrants
Limit hydraulic pump/motor；11- safety valves；12- constant-pressure variable hydraulic pumps；13- two-position two-way solenoid valves；14- pressure sensors；15-
Accumulator；16- fuel tanks；17- displacement transducers；18- hydraulic pump drive motor；19- controllers；20- action potential accumulatings loop；
21- action potential accumulating loops and motor compound drive system.
Embodiment
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the development machine of combination drive, including cutterhead 1, cutting arm 2, decelerator 3, shaft coupling 4, kinetic potential
Energy accumulating loop and motor compound drive system 21, ultracapacitor group 8 and controller 19, wherein：Action potential accumulating loop
Include with motor compound drive system：Action potential accumulating loop 20, driver motor 5, speed probe 9, the Ith frequency converter
6.1st, bidirectional DC-DC converter 7.
Described action potential accumulating loop 20 include electric ratio four-quadrant hydraulic pump/motor 10, constant-pressure variable hydraulic pump 12,
Hydraulic pump drive motor 18, the IIth frequency converter 6.2, safety valve 11, two-position two-way solenoid valve 13, accumulator 15, pressure sensing
Device 14, displacement transducer 17 and fuel tank 16, the first hydraulic fluid port P of electric ratio four-quadrant hydraulic pump/motor1, constant-pressure variable hydraulic pump
Oil-out, the oil inlet of safety valve, the A hydraulic fluid ports of two-position two-way solenoid valve connected by fluid pressure line, two-position two-way solenoid valve
B hydraulic fluid ports, pressure sensor and accumulator connect, the output signal p input controllers of pressure sensor；Electric ratio four-quadrant liquid
Press the second hydraulic fluid port P of pump/motor2, the oil inlet of constant-pressure variable hydraulic pump, the oil-out of safety valve connect with fuel tank；Displacement
The variable piston of sensor and electric ratio four-quadrant hydraulic pump/motor connection with detect its pivot angle change, displacement transducer it is defeated
Go out signal x input controllers, the input and output end of the IIth frequency converter connect with controller and hydraulic pump drive motor respectively
Connect, the output shaft of hydraulic pump drive motor and the driving axis connection of constant-pressure variable hydraulic pump；Electric ratio four-quadrant hydraulic pump/horse
The swash angle controller that reaches, the control terminal of two-position two-way solenoid valve are connected with controller.
First, second output shaft of driver motor respectively with one end of shaft coupling and the electric ratio in action potential accumulating loop
The driving axis connection of example four-quadrant hydraulic pump/motor, the other end of shaft coupling and the input axis connection of decelerator, decelerator it is defeated
One end of shaft and cutting arm is connected, and the other end of cutting arm is connected with cutterhead；The input and output end of Ith frequency converter point
It is not connected with controller and driver motor, the dc bus of the Ith frequency converter and one end of bidirectional DC-DC converter connect,
The other end of bidirectional DC-DC converter is connected to ultracapacitor group, and control terminal and the controller of bidirectional DC-DC converter connect
Connect, the first output axis connection of speed probe and main motor, its output signal n input controllers；Controller is to electric ratio
Four-quadrant hydraulic pump/motor, two-position two-way solenoid valve, bidirectional DC-DC converter, the Ith and the IIth frequency converter send control instruction H
And E.
Before the development machine of combination drive starts, controller sends control instruction E and driven to the IIth inverter, control hydraulic pump
Dynamic motor start-up, constant-pressure variable hydraulic pump are started working, and open two-position two-way solenoid valve, constant-pressure variable hydraulic pump is accumulator
Fluid is supplemented, when pressure sensor detects that the pressure of accumulator reaches preset value, controller control two-position two-way solenoid valve
Close.
When development machine starts to start, controller issues instructions to the Ith frequency converter, and control driver motor starts, and
By controlling the pivot angle of electric ratio four-quadrant hydraulic pump/motor to be at hydraulic motor operating mode, meanwhile, controller controls two
Two-way electromagnetic valve is opened, and hydraulic accumulator group release hydraulic energy, electric ratio four-quadrant liquid is driven simultaneously with constant-pressure variable hydraulic pump
Press pump/motor；Meanwhile controller sends instruction E to bidirectional DC-DC converter, control ultracapacitor group release electric energy, supplement
Peak point current needed for driver motor start-up course, driver motor and electric ratio four-quadrant hydraulic pump/motor are common
Development machine is driven to start.When speed probe detects that driver motor reaches desired speed, controller sends control and referred to
E is made, control two-position two-way solenoid valve is closed, while the pivot angle of electric ratio four-quadrant hydraulic pump/motor is zeroed, and is controlled two-way
DC-DC converter makes ultracapacitor group stop release electric energy.
When occurring peak load in the course of work, controller issues instructions to bidirectional DC-DC converter, controls super capacitor
Device group discharges electric energy, supplements the peak point current needed for the driver motor course of work, while controller sends instruction, control two
Position two-way electromagnetic valve is opened, and by controlling the pivot angle of electric ratio four-quadrant hydraulic pump/motor to be at hydraulic motor operating mode,
Constant-pressure variable hydraulic pump and accumulator drive electric ratio four-quadrant hydraulic pump/motor jointly, and auxiliary driver motor overcomes peak
It is worth load, after spending peak load, controller sends control instruction, and control two-position two-way solenoid valve is closed, and changes electric ratio four
The pivot angle of quadrant hydraulic pump/motor is zero.The bidirectional DC-DC converter of controller control simultaneously makes ultracapacitor group stop release
Electric energy.
When development machine is braked, controller control power network stops to the Ith inverter supply, the kinetic energy band of the cutterhead of development machine
Dynamic driver motor is in generating state, and controller issues instructions to bidirectional DC-DC converter, the electric energy that main motor is sent
Store in ultracapacitor group, while controller sends control instruction by controlling electric ratio four-quadrant hydraulic pump/motor
Pivot angle direction is at hydraulic pressure pump condition, and two-position two-way solenoid valve is opened, and driver motor drives electric ratio four-quadrant liquid
Hydraulic oil in fuel tank is pumped into hydraulic accumulator group by pressure pump/motor, and hydraulic accumulator composition is load, aids in main driving electricity
Motivation is braked.When the oil liquid pressure that pressure sensor is detected in hydraulic accumulator group reaches setting limit value, controller sends finger
Order closes two-position two-way solenoid valve, and fluid flows back to fuel tank by safety valve.After braking procedure terminates, controller sends control and referred to
Order, control two-position two-way solenoid valve are closed, and the pivot angle for changing electric ratio four-quadrant hydraulic pump/motor is zero, while controller control
Bidirectional DC-DC converter processed makes ultracapacitor group stop storage electric energy.
Described constant-pressure variable hydraulic pump is the constant pressure pump of mechanical signal control or the ratio constant pressure pump of electric signal control.
Described accumulator is single hydraulic accumulator or more than two hydraulic accumulator groups.
Described action potential accumulating loop be electric ratio four-quadrant hydraulic pump/motor with constant-pressure variable hydraulic pressure pump group into two
Secondary regulating loop, or the closed circuit of electric ratio four-quadrant hydraulic pump/motor and quantitative hydraulic pump/motor composition.
Described action potential accumulating loop and motor compound drive system by control driver motor rotating speed or
The output torque and corner of driver motor, realize the control to development machine.
Claims (5)
1. the development machine of combination drive, including cutterhead (1), cutting arm (2), decelerator (3), shaft coupling (4), its feature exist
In：Also include action potential accumulating loop and motor compound drive system (21), ultracapacitor group (8) and controller (19),
Wherein, action potential accumulating loop includes with motor compound drive system：Action potential accumulating loop (20), driver motor
(5), speed probe (9), the Ith frequency converter (6.1), bidirectional DC-DC converter (7)；
Described action potential accumulating loop (20) includes：Electric ratio four-quadrant hydraulic pump/motor (10), constant-pressure variable hydraulic pump
(12), hydraulic pump drive motor (18), the IIth frequency converter (6.2), safety valve (11), two-position two-way solenoid valve (13), accumulation of energy
Device (15), pressure sensor (14), displacement transducer (17) and fuel tank (16), the first of electric ratio four-quadrant hydraulic pump/motor
Hydraulic fluid port P1, the oil-out of constant-pressure variable hydraulic pump, the oil inlet of safety valve, the A hydraulic fluid ports of two-position two-way solenoid valve pass through hydraulic tube
Road connects, and B hydraulic fluid ports, pressure sensor and the accumulator of two-position two-way solenoid valve connect, the output signal p inputs of pressure sensor
Controller；Second hydraulic fluid port P of electric ratio four-quadrant hydraulic pump/motor2, the oil inlet of constant-pressure variable hydraulic pump, safety valve go out
Hydraulic fluid port connects with fuel tank；The variable piston of displacement transducer and electric ratio four-quadrant hydraulic pump/motor is connected to detect its pendulum
Angle changes, the output signal x input controllers of displacement transducer, the input and output end of the IIth frequency converter respectively with controller
Connected with hydraulic pump drive motor, the output shaft of hydraulic pump drive motor and the driving axis connection of constant-pressure variable hydraulic pump；
The swash angle controller of electric ratio four-quadrant hydraulic pump/motor, the control terminal of two-position two-way solenoid valve are connected with controller；
First, second output shaft of driver motor respectively with one end of shaft coupling and the electric ratio four in action potential accumulating loop
The driving axis connection of quadrant hydraulic pump/motor, the other end of shaft coupling and the input axis connection of decelerator, the output shaft of decelerator
It is connected with one end of cutting arm, the other end of cutting arm is connected with cutterhead；The input and output end of Ith frequency converter respectively with
Controller connects with driver motor, and the dc bus of the Ith frequency converter and one end of bidirectional DC-DC converter connect, two-way
The other end of DC-DC converter is connected to ultracapacitor group, and the control terminal of bidirectional DC-DC converter is connected with controller, turns
First output axis connection of fast sensor and main motor, its output signal n input controllers；Controller is to electric ratio four-quadrant
Hydraulic pump/motor, two-position two-way solenoid valve, bidirectional DC-DC converter, the Ith and the IIth frequency converter send control instruction.
2. the development machine of combination drive according to claim 1, it is characterised in that：Described constant-pressure variable hydraulic pump is machine
The constant pressure pump of tool signal control or the ratio constant pressure pump of electric signal control.
3. the development machine of combination drive according to claim 1, it is characterised in that：Described accumulator is single hydraulic pressure
Accumulator or more than two hydraulic accumulator groups.
4. the development machine of combination drive according to claim 1, it is characterised in that：Described action potential accumulating loop is electricity
Ratio four-quadrant hydraulic pump/motor and constant-pressure variable hydraulic pressure pump group into Secondary Control loop, or electric ratio four-quadrant hydraulic pump/
The closed circuit of motor and quantitative hydraulic pump/motor composition.
5. the development machine of combination drive according to claim 1, it is characterised in that：Described action potential accumulating loop and electricity
Motivation compound drive system is realized by controlling the rotating speed of driver motor or the output torque of driver motor and corner
Control to development machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697704.2A CN107587875A (en) | 2017-08-15 | 2017-08-15 | The development machine of combination drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697704.2A CN107587875A (en) | 2017-08-15 | 2017-08-15 | The development machine of combination drive |
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| Publication Number | Publication Date |
|---|---|
| CN107587875A true CN107587875A (en) | 2018-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710697704.2A Pending CN107587875A (en) | 2017-08-15 | 2017-08-15 | The development machine of combination drive |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241606A (en) * | 2013-05-22 | 2013-08-14 | 太原理工大学 | Electro-hydraulic hybrid driving mine lifting device and control method thereof |
| CN105485066A (en) * | 2016-01-31 | 2016-04-13 | 太原理工大学 | Electro-hydraulic hybrid power drive system of tunneling machine and control method |
| CN105508314A (en) * | 2016-01-31 | 2016-04-20 | 太原理工大学 | Crusher main motor hydraulic control circuit and control method thereof |
| CN106761760A (en) * | 2016-11-11 | 2017-05-31 | 太原理工大学 | The power shovel lifting system of electro-hydraulic combination drive |
-
2017
- 2017-08-15 CN CN201710697704.2A patent/CN107587875A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241606A (en) * | 2013-05-22 | 2013-08-14 | 太原理工大学 | Electro-hydraulic hybrid driving mine lifting device and control method thereof |
| CN105485066A (en) * | 2016-01-31 | 2016-04-13 | 太原理工大学 | Electro-hydraulic hybrid power drive system of tunneling machine and control method |
| CN105508314A (en) * | 2016-01-31 | 2016-04-20 | 太原理工大学 | Crusher main motor hydraulic control circuit and control method thereof |
| CN106761760A (en) * | 2016-11-11 | 2017-05-31 | 太原理工大学 | The power shovel lifting system of electro-hydraulic combination drive |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180116 |
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| RJ01 | Rejection of invention patent application after publication |