CN204692703U - A kind of integrated electrical liquid actuator - Google Patents
A kind of integrated electrical liquid actuator Download PDFInfo
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- CN204692703U CN204692703U CN201520343329.8U CN201520343329U CN204692703U CN 204692703 U CN204692703 U CN 204692703U CN 201520343329 U CN201520343329 U CN 201520343329U CN 204692703 U CN204692703 U CN 204692703U
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Abstract
The utility model relates to a kind of integrated electrical liquid actuator, and comprise hydraulic system, automatical control system, motor-pump unit, Shou Cao mechanism, fuel tank and oil cylinder, hydraulic system is made up of hydraulic integrated valve block and oil circuit; Motor in described motor-pump unit and gear pump lay respectively at the upper and lower both sides of hydraulic integrated valve block, and wherein gear pump inserts in fuel tank; Shou Cao mechanism and oil cylinder are separately positioned on the horizontal both sides of hydraulic integrated valve block, and are connected with hydraulic integrated valve block by oil circuit; Automatical control system is connected with hydraulic system and motor-pump unit respectively.Compared with prior art, the beneficial effects of the utility model are: hydraulic system pressure component integration degree is high, it is little, lightweight that mechanical actuating mechanism has volume, pendulum angle is accurate, the advantage that reliability is high, can significantly reduce failsafe valve rate, reduces cost of production, reduce maintenance expenses, ensure that production safety is carried out smoothly.
Description
Technical field
The utility model relates to a kind of power plant, particularly relates to a kind of integrated electrical liquid actuator.
Background technique
At present, butterfly valve and complete sets of equipment thereof are widely used on the various process control fluids pipelines in the fields such as oil and gas exploitation, Ferrous Metallurgy, petrochemical industry, energy generating, it is the important device of the process parameters such as Controlling Technology flow system flow, pressure, can meet specific function and particular job environmental requirement, its function, performance directly affect quality and the Economy of system cloud gray model.The power plant of butterfly valve can be divided into pneumatic actuator, electric actuator and electro-hydraulic actuator by drive form, wherein electro-hydraulic actuator be integrated with electrically operated simplification, hydraulic pressure power fast, the reliability of solid-state electronic and user configured flexibility, there is fast response time, control accuracy be high, output power is large, the advantage such as compact structure, and the problems such as the control accuracy overcoming pneumatic actuator is low, the poor controllability of electric actuator, there is unrivaled advantage at pipeline valve controlling party mask.
In existing electrolyte type actuator, mechanical actuating mechanism is bulky, heavy, hydraulic system pressure element is more, in control system, most employing DC servo motor, makes the fault point of actuator itself increase on the one hand, too increases the cost of production of actuator simultaneously.
Summary of the invention
The utility model provides a kind of integrated electrical liquid actuator, hydraulic system pressure component integration degree is high, it is little, lightweight that mechanical actuating mechanism has volume, pendulum angle is accurate, the advantage that reliability is high, can significantly reduce failsafe valve rate, reduces cost of production, reduce maintenance expenses, ensure that production safety is carried out smoothly.
In order to achieve the above object, the utility model realizes by the following technical solutions:
A kind of integrated electrical liquid actuator, comprise hydraulic system, automatical control system, motor-pump unit, Shou Cao mechanism, fuel tank and oil cylinder, hydraulic system is made up of hydraulic integrated valve block and oil circuit; Motor in described motor-pump unit and gear pump lay respectively at the upper and lower both sides of hydraulic integrated valve block, and wherein gear pump inserts in fuel tank; Shou Cao mechanism and oil cylinder are separately positioned on the horizontal both sides of hydraulic integrated valve block, and are connected with hydraulic integrated valve block by oil circuit; Automatical control system is connected with hydraulic system and motor-pump unit respectively.
Described hydraulic integrated valve block is made up of valve block body and the solenoid directional control valve be integrated on valve block body, one-way valve, relief valve, oil circuit is provided with multiple oilhole on hydraulic integrated valve block, and solenoid directional control valve, one-way valve, relief valve are arranged on corresponding oilhole respectively.
Described automatical control system is made up of microprocessor, main control module and driver module, and the valve position feedback device be arranged on oil cylinder connects microprocessor by main control module, and microprocessor connects motor and solenoid directional control valve additionally by driver module.
Described motor is threephase asynchronous machine, is connected with the driver module in automatical control system by frequency-variable controller.
Described valve position feedback device is absolute position encoder.
Described oil cylinder is spiral oscillating oil cylinder.
Compared with prior art, the beneficial effects of the utility model are:
1) hydraulic system pressure element is by efficient, reliable principle type selecting, fundamentally reduces failsafe valve rate, reduce maintenance expenses, and integration degree is high;
2) mechanical actuating mechanism simple for structure compact, volume is little, lightweight, easy to adjust, pendulum angle accurate, reliability is high, strong adaptability;
3) adopt spiral oscillating oil cylinder, higher moment of torsion can be realized by most compact structure and export, have that bearing capacity is high, shock resistance, zero leakage, advantage flexible for installation;
4) motor reaches energy-conservation, the object of speed governing to adopt frequency-variable controller to control, and also has overcurrent, overvoltage, overload protection function in addition.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1. motor 2. hydraulic integrated valve block 3. solenoid directional control valve 4. relief valve 5. one-way valve 6. fuel tank 7. oil cylinder 8. valve position feedback device
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Seeing Fig. 1, is structural representation of the present utility model, a kind of integrated electrical liquid actuator of the utility model, and comprise hydraulic system, automatical control system, motor-pump unit, Shou Cao mechanism, fuel tank 6 and oil cylinder 7, hydraulic system is made up of hydraulic integrated valve block 2 and oil circuit; Motor 1 in described motor-pump unit and gear pump lay respectively at the upper and lower both sides of hydraulic integrated valve block 2, and wherein gear pump inserts in fuel tank 6; Shou Cao mechanism and oil cylinder 7 are separately positioned on the horizontal both sides of hydraulic integrated valve block 2, and are connected with hydraulic integrated valve block 2 by oil circuit; Automatical control system is connected with hydraulic system and motor-pump unit respectively.
Described hydraulic integrated valve block 2 is made up of valve block body and the solenoid directional control valve 3 be integrated on valve block body, one-way valve 5, relief valve 4, oil circuit is provided with multiple oilhole on hydraulic integrated valve block 2, and solenoid directional control valve 3, one-way valve 5, relief valve 4 are arranged on corresponding oilhole respectively.
Described automatical control system is made up of microprocessor, main control module and driver module, and the valve position feedback device be arranged on oil cylinder 7 connects microprocessor by main control module, and microprocessor connects motor and solenoid directional control valve additionally by driver module.
Described motor is threephase asynchronous machine, is connected with the driver module in automatical control system by frequency-variable controller.
Described valve position feedback device 8 is absolute position encoder.
Described oil cylinder 7 is spiral oscillating oil cylinder.
In a kind of integrated electrical liquid actuator of the utility model, motor 1 and the gear pump coaxial line of motor-pump unit are arranged in the upper and lower both sides of hydraulic integrated valve block 2 and are connected by coupling.
Spiral oscillating oil cylinder 7 has king bolt lift angle, can realize higher moment of torsion export by most compact structure, have that bearing capacity is high, shock resistance, zero leakage, advantage flexible for installation.
Frequency-variable controller application converter technique and microelectronic technology; Wechselstrommotor is controlled by changing motor 1 working power Frequency Patterns; its close to the inner portion IGBT cut-off the voltage and the frequency that adjust out-put supply; the supply voltage required for it is provided according to the actual demand of motor 1; and then reach energy-conservation, the object of speed governing; in addition, frequency-variable controller also has overcurrent, overvoltage, overload protection function.
When a kind of integrated electrical liquid actuator of the utility model works, by motor 1 rotation driven gear pump, the oil in fuel tank 6 is pumped in the oil circuit of hydraulic system, hydraulic oil enters oil cylinder 7 lead-screw by hydraulic integrated valve block 2 and rotates within the scope of 0 ° ~ 90 °, and then drives butterfly valve to rotate the open and close action of butterfly valve.The master control system of butterfly valve place fluid line arrangement exports valve position control signal in the automatical control system in the utility model according to Real-time Monitoring Data, main control module in automatical control system receives the valve position analogue signal that valve position feedback means 8 feeds back to simultaneously, digital information is converted to through A/D, carry out computing by microprocessor and compare process, work through driver module drive motor 1 and solenoid directional control valve 3 again, regulating butterfly valve aperture.
Claims (6)
1. an integrated electrical liquid actuator, comprise hydraulic system, automatical control system, motor-pump unit, Shou Cao mechanism, fuel tank and oil cylinder, hydraulic system is made up of hydraulic integrated valve block and oil circuit; It is characterized in that, the motor in described motor-pump unit and gear pump lay respectively at the upper and lower both sides of hydraulic integrated valve block, and wherein gear pump inserts in fuel tank; Shou Cao mechanism and oil cylinder are separately positioned on the horizontal both sides of hydraulic integrated valve block, and are connected with hydraulic integrated valve block by oil circuit; Automatical control system is connected with hydraulic system and motor-pump unit respectively.
2. a kind of integrated electrical liquid actuator according to claim 1, it is characterized in that, described hydraulic integrated valve block is made up of valve block body and the solenoid directional control valve be integrated on valve block body, one-way valve, relief valve, oil circuit is provided with multiple oilhole on hydraulic integrated valve block, and solenoid directional control valve, one-way valve, relief valve are arranged on corresponding oilhole respectively.
3. a kind of integrated electrical liquid actuator according to claim 1, it is characterized in that, described automatical control system is made up of microprocessor, main control module and driver module, the valve position feedback device be arranged on oil cylinder connects microprocessor by main control module, and microprocessor connects motor and solenoid directional control valve additionally by driver module.
4. a kind of integrated electrical liquid actuator according to claim 1 or 3, is characterized in that, described motor is threephase asynchronous machine, is connected with the driver module in automatical control system by frequency-variable controller.
5. a kind of integrated electrical liquid actuator according to claim 3, is characterized in that, described valve position feedback device is absolute position encoder.
6. a kind of integrated electrical liquid actuator according to claim 1, is characterized in that, described oil cylinder is spiral oscillating oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343329.8U CN204692703U (en) | 2015-05-25 | 2015-05-25 | A kind of integrated electrical liquid actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343329.8U CN204692703U (en) | 2015-05-25 | 2015-05-25 | A kind of integrated electrical liquid actuator |
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| CN204692703U true CN204692703U (en) | 2015-10-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422955A (en) * | 2015-12-12 | 2016-03-23 | 成都科斯赛德科技有限公司 | Needle valve electrohydraulic actuator |
| CN108425897A (en) * | 2018-04-08 | 2018-08-21 | 江苏万华液压机电有限公司 | A kind of intelligent hydraulic revolution actuator |
| CN109131547A (en) * | 2018-10-29 | 2019-01-04 | 北京航天发射技术研究所 | Moving cell and control method are made in a kind of steering of integrated electrical liquid |
| CN110710373A (en) * | 2019-09-30 | 2020-01-21 | 黑龙江八一农垦大学 | Hydraulic rotary driving device for agricultural machine |
| CN110822156A (en) * | 2019-10-18 | 2020-02-21 | 江苏金陵智造研究院有限公司 | Hydraulic control unit for driving valve device and control method thereof |
-
2015
- 2015-05-25 CN CN201520343329.8U patent/CN204692703U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422955A (en) * | 2015-12-12 | 2016-03-23 | 成都科斯赛德科技有限公司 | Needle valve electrohydraulic actuator |
| CN108425897A (en) * | 2018-04-08 | 2018-08-21 | 江苏万华液压机电有限公司 | A kind of intelligent hydraulic revolution actuator |
| CN109131547A (en) * | 2018-10-29 | 2019-01-04 | 北京航天发射技术研究所 | Moving cell and control method are made in a kind of steering of integrated electrical liquid |
| CN109131547B (en) * | 2018-10-29 | 2020-09-18 | 北京航天发射技术研究所 | Integrated electro-hydraulic steering actuating unit and control method |
| CN110710373A (en) * | 2019-09-30 | 2020-01-21 | 黑龙江八一农垦大学 | Hydraulic rotary driving device for agricultural machine |
| CN110822156A (en) * | 2019-10-18 | 2020-02-21 | 江苏金陵智造研究院有限公司 | Hydraulic control unit for driving valve device and control method thereof |
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