CN207421001U - A kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device - Google Patents
A kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device Download PDFInfo
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- CN207421001U CN207421001U CN201721574272.8U CN201721574272U CN207421001U CN 207421001 U CN207421001 U CN 207421001U CN 201721574272 U CN201721574272 U CN 201721574272U CN 207421001 U CN207421001 U CN 207421001U
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Abstract
The utility model is related to balancing earth-pressure shielding machine soil storehouse automatic stirring control technology fields, more particularly to a kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device, including dynamical system and control execution system, the dynamical system includes pump, solenoid-operated proportional reversal valve, pilot operated directional control valve, the first overflow valve, proportional pressure control valve, check valve, ball valve and filter；The control execution system includes pressure-compensated valve, proportional multi-way valve, the first pressure reducing valve and the second pressure reducing valve, and the outlet oil circuit of the dynamical system connects the oil inlet of pressure-compensated valve, the first pressure reducing valve and the second pressure reducing valve respectively.The self- poking arrangement is according to the difference of geological condition, realize the control of different rotating speeds, and it is adjusted according to situation of slagging tap in real time into Mobile state, the automatic control system can realize rotating stepless time adjustment, the discharge capacity of pump is adjusted according to actual speed, meanwhile according to the pressure of driving speed, support pressure automatic adjustment pump, reduce energy consumption.
Description
Technical field
The utility model is related to balancing earth-pressure shielding machine soil storehouse automatic stirring control technology fields, and in particular to a kind of super large
The automatic control system of diameter soil pressure balance shield machine stirring device.
Background technology
At present, conventional balancing earth-pressure shielding machine is during Urban Metro Construction, using fixed passive stirring rod
Tu Cang stirrings are carried out, passive stirring rod can only be rotated by cutterhead and dregs whereabouts is passively stirred, and mixing effect is undesirable,
It is easy to cause dregs accumulation in native storehouse, be unearthed not freely, and be often present with the slag caused by the stirring of native storehouse tradition stirring rod is uneven
Native illiquidity forms mud cake, increases the torque of cutterhead, when mud cake is serious, equipment is caused not tunnel normally.In major diameter
In shield, because Tu Cang increases, the mobility of dregs is worse, and stirring dregs can not be often met using only passive stirring rod and increases it
The requirement of mobility, is such as changed without agitating device, and shield machine can not be tunneled normally at all.
The content of the invention
In order to overcome defect in the prior art, the utility model provides a kind of overlarge-diameter soil pressure balance shield machine
The automatic control system of agitating device, the system, and can by the way that the rotation of stirring rod is controlled to realize that more sufficient Tu Cang is stirred
Realize the independent control of different stirring rod, can make the irregular flowing of dregs, the self- poking arrangement according to geological condition not
Together, realize the control of different rotating speeds, and adjusted according to situation of slagging tap in real time into Mobile state, which can realize
Rotating stepless time adjustment adjusts the discharge capacity of pump according to actual speed, meanwhile, according to driving speed, support pressure automatic adjustment pump
Pressure, reduce energy consumption.
In order to achieve the above object, the technical solution adopted in the utility model is：
The utility model provides a kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device, including dynamic
Force system and control execution system, the dynamical system include pump, solenoid-operated proportional reversal valve, pilot operated directional control valve, the first overflow valve,
Proportional pressure control valve, check valve, ball valve and filter, the outlet of the pump draw all the way control oil connection solenoid-operated proportional reversal valve,
Proportional pressure control valve and pilot operated directional control valve, the oil inlet of the oil outlet connection pilot operated directional control valve of the solenoid-operated proportional reversal valve are described
The oil inlet of proportional pressure control valve connects the opposite side of pilot operated directional control valve simultaneously, and the outlet of the pump is sequentially connected in series ball valve, check valve
With connection control execution system after filter；The control execution system includes pressure-compensated valve, proportional multi-way valve, the first decompression
Valve and the second pressure reducing valve, the outlet oil circuit of the dynamical system connect pressure-compensated valve, the first pressure reducing valve and the second decompression respectively
The oil inlet of valve, the oil outlet connection proportional multi-way valve of the pressure-compensated valve, the oil outlet connection ratio of first pressure reducing valve
The control oil circuit of example multi-way valve, the oil outlet connection motor of second pressure reducing valve.
Further, first pressure sensor and pressure gauge are provided on the outlet oil circuit of the pump.
Further, second pressure sensor is connected with by shuttle valve on the imported oil road of the motor.
Further, it is provided with balanced valve on the imported oil road of the motor.
Further, it is parallel with the second overflow valve on the imported oil road of first pressure reducing valve.
Further, it is described to control the quantity of execution system as three, and be connected in parallel with each other.
Compared with prior art, the positive beneficial effect of the utility model is：
The utility model provides a kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device, this is automatic
Control system is variable pump throttling speed control circuit, enough adapts to large torque, high-revolving duty requirements, while can realize electrodeless tune
The functions such as speed, overload protection, bidirectional rotation, runnability are stablized, and using effect is good.Corresponding stirring rod is driven by multiple motors
The rotation of different directions rotating speed realizes that Tu Cang is sufficiently stirred, can effectively reduce native storehouse mud lining situation, increases native storehouse dregs
Mobility improves the improved effect of the sediment improvements agent such as foam, so as to improve shield machine drivage efficiency, reduces construction cost.
Description of the drawings
Fig. 1 is a kind of structure of the automatic control system of overlarge-diameter soil pressure balance shield machine stirring device of the utility model
Schematic diagram.
Meaning in figure representated by sequence number is：1. pump, 2. solenoid-operated proportional reversal valves, 3. first overflow valves, 4. proportional overflows
Valve, 5. pressure gauges, 6. first pressure sensors, 7. ball valves, 8. check valves, 9. filters, 10. proportional multi-way valves, 11. pressure are mended
Repay valve, 12. second overflow valves, 13. first pressure reducing valves, 14. shuttle valves, 15. motors, 16. second pressure reducing valves, 17. balanced valves, 18.
Second pressure sensor, 19. pilot operated directional control valves.
Specific embodiment
Further description is made to the utility model in the following with reference to the drawings and specific embodiments：
Embodiment one, as shown in Figure 1, a kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device,
Including dynamical system and control execution system, the dynamical system include pump 1, solenoid-operated proportional reversal valve 2, pilot operated directional control valve 19,
First overflow valve 3, proportional pressure control valve 4, check valve 8, ball valve 7 and filter 9, the outlet of the pump 1 are drawn control oil all the way and are connected
Connect solenoid-operated proportional reversal valve 2, proportional pressure control valve 4 and pilot operated directional control valve 19, the oil outlet connection liquid of the solenoid-operated proportional reversal valve 2
The oil inlet of reversal valve 19 is controlled, the oil inlet of the proportional pressure control valve 4 connects the opposite side of pilot operated directional control valve 19, the pump simultaneously
1 outlet is sequentially connected in series connection control execution system after ball valve 7, check valve 8 and filter 9；The control execution system includes
Pressure-compensated valve 11, proportional multi-way valve 10, the first pressure reducing valve 13 and the second pressure reducing valve 16, the outlet oil circuit point of the dynamical system
Not Lian Jie pressure-compensated valve 11, the first pressure reducing valve 13 and the second pressure reducing valve 16 oil inlet, the pressure-compensated valve 11 it is fuel-displaced
Mouthful connection proportional multi-way valve 10, the control oil circuit of the oil outlet connection proportional multi-way valve 10 of first pressure reducing valve 13, described the
The oil outlet connection motor 15 of two pressure reducing valves 16.
First overflow valve 3 is connected to by threeway on the oil outlet of pump 1, peace when failing for proportional pressure control valve 4
Full guard.
First pressure sensor 6 and pressure gauge 5 are provided on the outlet oil circuit of the pump 1, for monitoring 1 output of pump
Real-time pressure is adjusted convenient for the output pressure to pump 1.
Second pressure sensor 18, second pressure sensing are connected with by shuttle valve 14 on the imported oil road of the motor 15
Device 18 is used for detecting the operating pressure of motor 15.
Balanced valve 17 is provided on the imported oil road of the motor 15, motor 15 can be made to stop in time and prevent motor
15 passive rotations.
The second overflow valve 12 is parallel on the imported oil road of first pressure reducing valve 13.
It is described to control the quantity of execution system as three, and be connected in parallel with each other, make Tu Cang stirrings more abundant, and can
It is accelerated according to the demand number of different stirring rod correspondence.
For the utility model to the adaptable of dregs, the reliability of system is high, energy-saving.The utility model uses
PID automatic control technologys while increase manual control, are passed first by first pressure, it can be achieved that Tu Cang stirs Automatic Control
The acquisition load maximum pressure of sensor 6, proportional pressure control valve 4 is adjusted according to the load pressure collected, realizes load pressure with pump most
Big output pressure matches, while the load value of the acquisition of second pressure sensor 18 by each control execution system, adjusts
The aperture of proportional multi-way valve 10, so as to adjust stirring rod speed, when load pressure reaches certain value, proportional multi-way valve 10 may be used also
With commutation, stirring rod reversion is realized, meanwhile, the required stream of whole system is calculated according to the input current of proportional multi-way valve 10
Amount, synchronous adjustment solenoid-operated proportional reversal valve 2 so as to adjust the output displacement of pump 1, realize that loading speed matches with 1 discharge capacity of pump.
Meanwhile pressure sensor acquisition pump discharge pressure and each load pressure can feed back to man-machine interface, user can understand in real time
The operating mode of each stirring rod, 6 side of first pressure sensor pressure gauge 5 in parallel, can compare in real time with pressure sensor numerical value, prevent from pressing
Force snesor fails or numerical value does not influence the stability of system on time.
1 outlet of the system pump installs ball valve 7 additional, can occur oil leak when fortuitous events or when needing replacing component pipeline and
When close ball valve 7, cut off oil sources.1 outlet of pump installs accurate filter 9 additional, can prevent the impurity damage such as iron filings in oil circuit from controlling
The precision elements such as proportional multi-way valve 10, motor 15 in execution system.
The reversing motor 15 that the system is controlled using proportional multi-way valve 10 drives stirring rod rotation, can be turned to and turned according to cutterhead
Speed and support pressure are matched, select it is suitable turn to and rotating speed is stirred, it is and there is a certain load pressure excessive
When, accommodation can be made in time, reduces rotating speed or reversion, make whole system more efficiently, conveniently.Coincidence circuit increases double
To balanced valve 17, stirring rod rotation can be more precisely controlled, the system installs the first overflow valve 3 additional in pump discharge, in proportional pressure control valve 4
Occur chance failure or pump variable cylinder exception when can timely overflow, increase security of system.
Control valve uses integrated proportional multi-way valve 10, saves space, increases pressure-compensated valve 11 before proportional multi-way valve 10,
Ensure in the case of different loads, realize that the adjustment of speed is unrelated with load, stablize system accurate.Meanwhile it is needing more
Directly in parallel it can increase by 10 quantity of proportional multi-way valve to realize control execution system conveniently when more execution motors
Increase and decrease.
The pressure oil exported from dynamical system is divided into three parts, and a part enters proportional multi-way valve by pressure-compensated valve 11
10；Another part is by the first pressure reducing valve 13 into the control oil circuit of proportional multi-way valve 10, and in pressure oil inlet, parallel connection second is overflow
Valve 12 is flowed, controls entire circuit maximum pressure；Some carries out repairing by the second pressure reducing valve 16 into working oil path.It is pressing
After power oil enters proportional multi-way valve main valve, proportional multi-way valve 10 realizes rotating and speed by the forward and reverse opening degree of control valve
Control, into working oil path A, B after proportional multi-way valve 10, pass through the connection of shuttle valve 14 second before working oil path A, B
Pressure sensor 18 detects operating pressure in real time, meanwhile, increase a pressure tap respectively in working oil path A, B two-way, if necessary
Available pressure table detects working oil path A, B two-way pressure.Working oil path increase balanced valve 17, can make motor 15 in time stop and
It prevents 15 passive rotation of motor, for executive component stirring rod is driven to be stirred with motor 15, the present embodiment is similary using three
Control perform system, and be connected in parallel with each other, make Tu Cang stirrings more abundant.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand；It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
Among scope.
Claims (6)
1. a kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device, which is characterized in that including dynamical system
System and control execution system, the dynamical system include pump, solenoid-operated proportional reversal valve, pilot operated directional control valve, the first overflow valve, ratio
Control oil connection solenoid-operated proportional reversal valve, ratio all the way are drawn in overflow valve, check valve, ball valve and filter, the outlet of the pump
Overflow valve and pilot operated directional control valve, the oil inlet of the oil outlet connection pilot operated directional control valve of the solenoid-operated proportional reversal valve, the ratio
The oil inlet of overflow valve connects the opposite side of pilot operated directional control valve simultaneously, and the outlet of the pump is sequentially connected in series ball valve, check valve and mistake
Connection control execution system after filter；The control execution system include pressure-compensated valve, proportional multi-way valve, the first pressure reducing valve and
Second pressure reducing valve, the outlet oil circuit of the dynamical system connect pressure-compensated valve, the first pressure reducing valve and the second pressure reducing valve respectively
Oil inlet, the oil outlet connection proportional multi-way valve of the pressure-compensated valve, the oil outlet connection ratio of first pressure reducing valve are more
The control oil circuit of road valve, the oil outlet connection motor of second pressure reducing valve.
2. the automatic control system of overlarge-diameter soil pressure balance shield machine stirring device according to claim 1, feature
It is, first pressure sensor and pressure gauge is provided on the outlet oil circuit of the pump.
3. the automatic control system of overlarge-diameter soil pressure balance shield machine stirring device according to claim 1, feature
It is, second pressure sensor is connected with by shuttle valve on the imported oil road of the motor.
4. the automatic control system of overlarge-diameter soil pressure balance shield machine stirring device according to claim 1, feature
It is, balanced valve is provided on the imported oil road of the motor.
5. the automatic control system of overlarge-diameter soil pressure balance shield machine stirring device according to claim 1, feature
It is, the second overflow valve is parallel on the imported oil road of first pressure reducing valve.
6. automatically controlling for overlarge-diameter soil pressure balance shield machine stirring device according to any one of claims 1 to 5 is
System, which is characterized in that it is described to control the quantity of execution system as three, and be connected in parallel with each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574272.8U CN207421001U (en) | 2017-11-22 | 2017-11-22 | A kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721574272.8U CN207421001U (en) | 2017-11-22 | 2017-11-22 | A kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device |
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| CN207421001U true CN207421001U (en) | 2018-05-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781241A (en) * | 2017-11-22 | 2018-03-09 | 中铁工程装备集团技术服务有限公司 | A kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device |
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2017
- 2017-11-22 CN CN201721574272.8U patent/CN207421001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781241A (en) * | 2017-11-22 | 2018-03-09 | 中铁工程装备集团技术服务有限公司 | A kind of automatic control system of overlarge-diameter soil pressure balance shield machine stirring device |
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