CN1865746A - Integrated electro-hydraulic actuator capable of carrying out quick action and adjustment - Google Patents

Integrated electro-hydraulic actuator capable of carrying out quick action and adjustment Download PDF

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Publication number
CN1865746A
CN1865746A CN 200510046441 CN200510046441A CN1865746A CN 1865746 A CN1865746 A CN 1865746A CN 200510046441 CN200510046441 CN 200510046441 CN 200510046441 A CN200510046441 A CN 200510046441A CN 1865746 A CN1865746 A CN 1865746A
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CN
China
Prior art keywords
oil
hydraulic
accumulator
power source
quick
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CN 200510046441
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Chinese (zh)
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CN100360813C (en
Inventor
刘宝军
徐进善
张弢
刘江
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沈阳东北电力调节技术有限公司
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Priority to CNB2005100464416A priority Critical patent/CN100360813C/en
Publication of CN1865746A publication Critical patent/CN1865746A/en
Application granted granted Critical
Publication of CN100360813C publication Critical patent/CN100360813C/en

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Abstract

The invention discloses an integrated electric hydraulic executer with quick motion and adjustment. Wherein, present hydraulic executer needs external hydraulic station, to increase the volume and relative maintenance. The invention is characterized in that: it comprises a hydraulic cylinder, an integrated power source and a quick power source. Wherein, the quick power source comprises that: the hydraulic pump group via one-way valve feeds hydraulic oil to the accumulator; there is a check valve between the accumulator and the cylinder; the accumulator as the indirect oil source, via two electromagnetic steering valves, provides power oil to the cylinder; the electro voltage switch controls the voltage of accumulator; said integrated power source is formed by a servo motor, a step motor, a bidirectional hydraulic pump and a hydraulic control valve. The invention has the advantages that: it has itself oil source, with compact structure, small volume, lower weight, long service life, and reliable control, while it can be used to control the flux and pressure of tube.

Description

Capable of carrying out quick action and the electro-hydraulic actuator regulated of integrated type

Technical field

The present invention relates to a kind of drive and control valve is opened and closed, and can guarantee the device of valve safe operation.The said valve of this paper is meant the valve of controlling plumbing fixtures inner fluid flow and pressure.

Background technique

Valve is to be used for controlling plumbing fixtures inner fluid flow and pressure.The device that drives also control valve operation is final controlling element.Press the working method of final controlling element, can be divided into electrodynamic type, pneumatic type and hydraulic type.The electrodynamic type final controlling element is by motoring valve operation, have easy and simple to handle, be easy to realize characteristics such as distant control, but degree of regulation is relatively low, speed of response is relatively slow, reliability is relatively poor relatively; The pneumatic type final controlling element is to drive the valve operation by the body of calming the anger, and have characteristics such as simple in structure, that maintenance is comparatively convenient, but volume is big, need source of the gas and air cleaning unit, load capacity to be subjected to the restriction of structure and volume relatively low; The hydraulic type final controlling element is to drive the valve operation by hydraulic oil, has characteristics such as degree of regulation height, speed of response be very fast relatively, but need be equipped with huge oil-servicing facilities, and maintenance workload is also relatively large.

Summary of the invention

The object of the present invention is to provide a kind of do not need the peripheral hardware hydraulic station, can realize that quick acting can realize the integrating electro-hydraulic actuator of regulatory function again.

U. S. Patent 45,431,182; 54,766,728; 74,969,163; 84,625,513; 94,557,180 provide a kind of integrated type power source, and it is made up of actuating motor, stepper motor, bidirectional hydraulic pump, hydraulic control valve etc.It has following characteristics: 1, self be with the sealing oil sources; 2, exportable bigger moment; 3, have guarantor's bit function, under the dead electricity situation, can be set at as required and protect the position; 4, has quick protective function.The present invention utilizes these characteristics of integrated type power source and effect just, makes the peripheral hardware hydraulic station in its replacement said system and can realize that regulatory function becomes possibility.

The object of the present invention is achieved like this: it has hydraulic jack, it is characterized in that: it also has quick power source and integrated type power source, two hydraulic fluid ports of integrated type power source dock with two hydraulic fluid ports of hydraulic jack, power oil is the piston reciprocates in the both direction driving oil cylinder of the left and right sides respectively, and then driving valve closure or openness, to realize the function of regulating valve, constituting of quick power source: the oil hydraulic pump group infeeds hydraulic oil by one-way valve in accumulator, constitute closed loop by stop valve in addition between accumulator and the oil cylinder, accumulator provides power oil by two solenoid directional control valves to oil cylinder as indirect oil sources, the force value of electric power pressure switch control accumulator.

The oil hydraulic pump group infeeds hydraulic oil to accumulator, high pressure nitrogen in the pressure oil compress energy storage device, pressure in the accumulator is raise gradually, the high limit of its pressure is limited by electron pressure switch, when the oil pressure in the accumulator was elevated to electron pressure switch institute predefined high limit force value, the electron pressure switch sender was given the electric control system in the final controlling element, the operation of stop solution press pump group, because the sealing of one-way valve and two solenoid directional control valves is maintained the pressure in the accumulator.

If because of seepage or to the oil cylinder fuel feeding, pressure oil output in the accumulator, cause that pressure descends, when if pressure drops to the predefined lower bound force value of electron pressure switch institute, the electron pressure switch sender, the operation of control primer fluid press pump group charges into high-pressure oil again in accumulator.Above process moves in circles and carries out, and whether the work of oil hydraulic pump group only is decided by the force value of accumulator internal pressure oil.Pressure oil pressure in the accumulator always remains between the upper and lower limit force value of electron pressure switch oil hydraulic pump group discontinuous operation.

Accumulator provides pressure oil to oil cylinder, the exportable linear reciprocating motion of oil cylinder, and the size of its ouput force is decided by to enter the size of in-oil cylinder pressure oil force value and oil cylinder cylinder diameter.

The present invention compares with the prior art scheme, is characterized in:

1, it carries oil sources, is the connection of no pipeline between the equipment, and entire equipment compact structure, volume are little, in light weight, easy care;

2, it is closed system, and is pollution-free, no bite phenomenon, and control is sensitive reliable.

3, it had been not only capable of carrying out quick action, but also can realize regulatory function.

Description of drawings

Further specify the present invention below in conjunction with accompanying drawing.

Accompanying drawing is a structural representation of the present invention.

Embodiment

It has hydraulic jack 7, quick power source and integrated type power source 8, two hydraulic fluid ports of integrated type power source dock A with two hydraulic fluid ports of hydraulic jack, B, power oil is the piston reciprocates in the both direction driving oil cylinder of the left and right sides respectively, and then driving valve closure or openness, to realize the function of regulating valve, constituting of quick power source: oil hydraulic pump group 1 infeeds hydraulic oil by one-way valve 2 in two accumulators 5, constitute closed loop by stop valve 4 in addition between accumulator and the oil hydraulic pump group 1, accumulator provides power oil, the force value of electric power pressure switch 3 control accumulators by two solenoid directional control valves 6 to oil cylinder as indirect oil sources.

The oil hydraulic pump group infeeds high pressure oil to system, the pressure oil of pump discharge is by the restriction of the relief valve in pump group pressure maximum, the pressure oil that oil hydraulic pump is confessed, through one-way valve 2, the stop valve of often opening 4, enter two accumulators respectively, high pressure nitrogen in the pressure oil compress energy storage device, pressure in the accumulator is raise gradually, the high limit of its pressure is by electron pressure switch 3 restrictions, when the oil pressure in the accumulator is elevated to the predefined high limit force value of 3 of electron pressure switchs, the electron pressure switch sender is given the electric control system in the final controlling element, the operation of control stop solution press pump group, because the sealing of one-way valve and two solenoid directional control valves is arranged, two interior pressure of accumulator will be maintained.

If because of seepage or to system's fuel feeding, two interior pressure oils of accumulator can be exported, cause that pressure descends, when if pressure drops to the predefined lower bound force value of electron pressure switch, the electron pressure switch sender, the operation of control primer fluid press pump group charges into high-pressure oil again in accumulator.Above process moves in circles and carries out, and whether the work of oil hydraulic pump group only is decided by the force value of accumulator internal pressure oil.

The upper and lower limit force value of electron pressure switch can be set arbitrarily.

The work characteristics of oil sources part is: the pressure oil pressure in the accumulator always remains between the upper and lower limit force value of electron pressure switch oil hydraulic pump group discontinuous operation.

The realization of final controlling element action: the action of final controlling element is to be gone out rod oil cylinder 7 and realized by two, the exportable linear reciprocating motion of oil cylinder, and the size of its ouput force is decided by to enter the size of in-oil cylinder pressure oil force value and oil cylinder cylinder diameter.

When quick-action was done fast, the action past, multiple and that stop of oil cylinder was by solenoid directional control valve control, when the electromagnet a of two solenoid directional control valves excitation, and the spool action, the piston rod that makes oil cylinder is to left movement; When the electromagnet b of two solenoid directional control valves excitation, the spool action moves right the piston rod of oil cylinder; As electromagnet a, the b of two solenoid directional control valves all not during excitation, make the piston rod stop motion of oil cylinder, about the fluid in two chambeies do not had to leak by solenoid directional control valve and seal, oil cylinder position is locked;

Oil pump in the integrated type power source 8 is in parallel with the oil hydraulic pump 1 of quick power source, when the seepage phenomenon occurring to integrated type power source supplementary pressure oil.

Claims (3)

1, the capable of carrying out quick action and electro-hydraulic actuator regulated of a kind of integrated type, it has hydraulic jack, it is characterized in that: it also has quick power source and integrated type power source, two hydraulic fluid ports of integrated type power source dock with two hydraulic fluid ports of hydraulic jack, constituting of quick power source: the oil hydraulic pump group infeeds hydraulic oil by one-way valve in accumulator, constitute closed loop by stop valve in addition between accumulator and the oil cylinder, accumulator provides power oil by two solenoid directional control valves to oil cylinder as indirect oil sources, the force value of electric power pressure switch control accumulator.
2, and the electro-hydraulic actuator regulated capable of carrying out quick action according to the described integrated type of claim 1, it is characterized in that: the oil pump in the integrated type power source is in parallel with the oil hydraulic pump of quick power source.
3, according to claim 1 or 2 described integrated types are capable of carrying out quick action and the electro-hydraulic actuator regulated, it is characterized in that: said accumulator is two parallel connections.
CNB2005100464416A 2005-05-17 2005-05-17 Integrated electro-hydraulic actuator capable of carrying out quick action and adjustment CN100360813C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100464416A CN100360813C (en) 2005-05-17 2005-05-17 Integrated electro-hydraulic actuator capable of carrying out quick action and adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100464416A CN100360813C (en) 2005-05-17 2005-05-17 Integrated electro-hydraulic actuator capable of carrying out quick action and adjustment

Publications (2)

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CN1865746A true CN1865746A (en) 2006-11-22
CN100360813C CN100360813C (en) 2008-01-09

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513413A (en) * 2011-12-03 2012-06-27 南京埃尔法电液技术有限公司 Hydraulic control system for novel servo pump control bending machine
CN101392809B (en) * 2007-09-21 2013-05-01 利勃海尔航空航天林登贝格股份有限公司 Active hydraulic damper and hydraulic actuator
CN103629194A (en) * 2013-12-10 2014-03-12 沈阳东北电力调节技术有限公司 Mechanical quick-operation type integrated electro-hydraulic actuator
CN104279197A (en) * 2014-10-30 2015-01-14 辽宁电力控制技术有限公司 Integrated electro-hydraulic actuator
CN104373382A (en) * 2014-10-31 2015-02-25 沈阳东北电力调节技术有限公司 Axial flow compressor stationary blade adjusting system
CN104565506A (en) * 2015-01-14 2015-04-29 重庆川仪自动化股份有限公司 Explosion-proof hybrid electro-hydraulic integrated actuator for valve
CN104847710A (en) * 2015-03-17 2015-08-19 北京理工大学 Electro-hydraulic hybrid actuator based on oil-gas balance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH074846B2 (en) * 1991-07-01 1995-01-25 日精樹脂工業株式会社 Hydraulic control system of injection molding machine
CN2195013Y (en) * 1994-08-18 1995-04-19 武汉市亚美蝶阀厂 Hydraulic control butterfly valve
US5522212A (en) * 1994-12-21 1996-06-04 Kubik; Philip A. Rod equal displacement cylinder in a rapid transfer and feed system
DE19647940C2 (en) * 1996-11-20 1999-05-12 Mannesmann Sachs Ag Hydraulic actuator
JP2003013907A (en) * 2001-06-27 2003-01-15 Yuichi Kiryu Electro-hydraulic actuator for compression molding machine, injection molding machine or the like
CN2531185Y (en) * 2002-04-09 2003-01-15 沈阳东北电力调节技术研究所 Integrated electrohydraulic control quick-shutting off valve
CN2799942Y (en) * 2005-05-17 2006-07-26 沈阳东北电力调节技术有限公司 Integrated electro-hydraulic actuator capable of quickly acting and regulating

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101392809B (en) * 2007-09-21 2013-05-01 利勃海尔航空航天林登贝格股份有限公司 Active hydraulic damper and hydraulic actuator
CN102513413A (en) * 2011-12-03 2012-06-27 南京埃尔法电液技术有限公司 Hydraulic control system for novel servo pump control bending machine
CN102513413B (en) * 2011-12-03 2013-11-06 南京埃尔法电液技术有限公司 Hydraulic control system for novel servo pump control bending machine
CN103629194A (en) * 2013-12-10 2014-03-12 沈阳东北电力调节技术有限公司 Mechanical quick-operation type integrated electro-hydraulic actuator
CN103629194B (en) * 2013-12-10 2015-11-25 沈阳东北电力调节技术有限公司 The integrated electric hydraulic actuator of mechanical type snap-action
CN104279197A (en) * 2014-10-30 2015-01-14 辽宁电力控制技术有限公司 Integrated electro-hydraulic actuator
CN104373382A (en) * 2014-10-31 2015-02-25 沈阳东北电力调节技术有限公司 Axial flow compressor stationary blade adjusting system
CN104565506A (en) * 2015-01-14 2015-04-29 重庆川仪自动化股份有限公司 Explosion-proof hybrid electro-hydraulic integrated actuator for valve
CN104565506B (en) * 2015-01-14 2017-06-09 重庆川仪自动化股份有限公司 Valve is with double dynamical integrated explosion-proof electrohydraulic actuator
CN104847710A (en) * 2015-03-17 2015-08-19 北京理工大学 Electro-hydraulic hybrid actuator based on oil-gas balance

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