CN110107549A - A kind of electro-hydraulic execution system and method for thrust valve - Google Patents
A kind of electro-hydraulic execution system and method for thrust valve Download PDFInfo
- Publication number
- CN110107549A CN110107549A CN201910480883.3A CN201910480883A CN110107549A CN 110107549 A CN110107549 A CN 110107549A CN 201910480883 A CN201910480883 A CN 201910480883A CN 110107549 A CN110107549 A CN 110107549A
- Authority
- CN
- China
- Prior art keywords
- valve
- thrust
- electro
- thrust valve
- rod chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 101000836873 Homo sapiens Nucleotide exchange factor SIL1 Proteins 0.000 description 1
- 102100027096 Nucleotide exchange factor SIL1 Human genes 0.000 description 1
- 101000880156 Streptomyces cacaoi Subtilisin inhibitor-like protein 1 Proteins 0.000 description 1
- 101000879673 Streptomyces coelicolor Subtilisin inhibitor-like protein 3 Proteins 0.000 description 1
- 101000879675 Streptomyces lavendulae Subtilisin inhibitor-like protein 4 Proteins 0.000 description 1
- 101000880160 Streptomyces rochei Subtilisin inhibitor-like protein 2 Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of electro-hydraulic execution system and method for thrust valve, and the system includes: the hopper for storing flow；For executing the thrust valve unit of switch, the thrust valve includes rod cavity and rodless cavity, and the hydraulic stem of the rod chamber is equipped with thrust valve；For the input unit of input flow rate, one end of the input unit is connected to the hopper, and the other end of the input unit is connected to the rod chamber；Circuit units for return flow, one end of the circuit units is connected to the rod chamber, the other end of the circuit units is connected to the hopper, outputting and inputting for flow is carried out by the rod chamber to thrust valve unit, realize that the hydraulic stem of rod chamber drives the movement of thrust valve, convenient for control, there is faster influence speed.
Description
Technical field
The present invention relates to industrial control fields, more particularly to a kind of electro-hydraulic execution system and method for thrust valve.
Background technique
Valve is usually applied to quick acting, high safety, the driving of heavy load valve with electrohydraulic actuator, however is at present
Realization quick acting, is required to usually to have 3 kinds of modes: 1. mechanical spring energy storage by energy storage mode；2. Weight type energy storage；
3. independent accumulator hydraulic accumulation energy.Mode has that reaction speed is low, reliability is not strong, integrated level is low and external leakage in above-mentioned 3
The problems such as.
Summary of the invention
In view of the foregoing deficiencies of prior art, system is executed the purpose of the present invention is to provide a kind of thrust valve is electro-hydraulic
System and method, for solving the problems, such as that thrust valve is not easy to control in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of electro-hydraulic execution system of thrust valve, comprising:
For storing the hopper of flow；For executing the thrust valve unit of switch, the thrust valve includes rod cavity and rodless cavity,
The hydraulic stem of the rod chamber is equipped with thrust valve；For the input unit of input flow rate, one end of the input unit with
The hopper connection, the other end of the input unit are connected to the rod chamber；It is described for the circuit units of return flow
One end of circuit units is connected to the rod chamber, and the other end of the circuit units is connected to the hopper.
Optionally, the circuit units are equipped with the overflow valve for overvoltage protection.
Optionally, at least one circuit subelement is additionally provided in the circuit units, at least one described circuit subelement
It is in parallel with the overflow valve respectively.
Optionally, the circuit subelement is equipped with solenoid valve and throttle valve, the solenoid valve and throttle valve series connection.
It optionally, include compression fluid in the rodless cavity.
Optionally, the thrust valve is set to the one end of the hydraulic stem far from the rodless cavity, and the thrust valve
The electro-hydraulic execution system of door further includes the first position sensor and second position sensor for detecting thrust valve location.
Optionally, the input unit includes oil pump and check valve, and the oil pump and the check valve are connected.
Optionally, the electro-hydraulic execution system of the thrust valve further includes for the pressure gauge of pressure detecting and for pressure
The shut-off valve of protection, the input terminal of the input unit is in parallel with the pressure gauge, the input terminal of the input unit with it is described
Shut-off valve series connection.
A kind of electro-hydraulic execution method of thrust valve, comprising: provide the thrust valve electro-hydraulic execution system；It is single to open input
Member, flow is inputted rod chamber from hopper by input unit, and drives the thrust valve towards the direction close to the rodless cavity
Movement；The access of circuit units is opened, the flow in the rod chamber is delivered to the hopper by the circuit units, and drives
The thrust valve is directed away from the direction movement of the rodless cavity.
Further include:
The circuit units are equipped with the overflow valve for overvoltage protection, are additionally provided at least one time in the circuit units
Way unit, at least one described circuit subelement are in parallel with the overflow valve respectively；
When the pressure superpressure in the rod chamber, the overflow valve is opened, and the flow in the rod chamber is back to institute
Hopper is stated, the thrust valve keeps current state；
When the circuit subelement is opened, the flow in the rod chamber returns to the hopper, the thrust valve by
Current state is directed away from the direction movement of the rodless cavity.
As described above, the electro-hydraulic execution system and method for thrust valve of the invention, has the advantages that
Outputting and inputting for flow is carried out by the rod chamber to thrust valve unit, realizes that the hydraulic stem of rod chamber drives
The movement of thrust valve has faster influence speed convenient for control.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of the electro-hydraulic execution system of one embodiment of the invention thrust valve.
Fig. 2 is shown as the structural schematic diagram of the electro-hydraulic execution system of another embodiment of the present invention thrust valve.
Piece mark explanation
01 hopper
02 input unit
03 thrust valve unit
031 rod chamber
032 rodless cavity
04 circuit units
041 overflow valve
042 circuit subelement
1 fuel tank
2 first filters
3 first high-pressure oil pumps
4 first motors
5 first check valves
6 second filters
7 second high-pressure oil pumps
8 second motors
9 second one-way valves
10 pressure gauges
11 first valve opening shut-off valves
12 first close valve shut-off valve
13 first overflow valves
14 first fast electromagnetic valves
15 first fast throttle valves
16 first solenoid valves at a slow speed
17 first slow throttles
18 second valve opening shut-off valves
19 second close valve shut-off valve
20 second overflow valves
21 second fast electromagnetic valves
22 second fast throttle valves
23 second solenoid valves at a slow speed
24 second slow throttles
25 gas-liquid composite oil cylinders
26 lower position switch
27 upper limit switches
28 inflation shut-off valves
29 air gauges
30 charge valves
31 baroceptors
32 compressed nitrogens
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Fig. 1 is please referred to Fig. 2.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its
Assembly layout kenel may also be increasingly complex.This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
Art content obtains in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Fig. 1 is shown as the structural schematic diagram of an electro-hydraulic execution system of embodiment thrust valve, and referring to Figure 1, the present invention mentions
For a kind of electro-hydraulic execution system of thrust valve, comprising: for storing the hopper 01 of flow；For executing the thrust valve list of switch
Member 03, the thrust valve include rod cavity 031 and rodless cavity 032, and the hydraulic stem of the rod chamber 031 is equipped with thrust valve
Door；For the input unit 02 of input flow rate, one end of the input unit 02 is connected to the hopper 01, the input unit
02 other end is connected to the rod chamber 031；For the circuit units 04 of return flow, one end of the circuit units 04 with
The rod chamber 031 is connected to, and the other end of the circuit units 04 is connected to the hopper 01, and this programme passes through electrichydraulic control reality
The switch of existing thrust valve, in thrust valve opening process: input unit 02 works, and the input flow rate into rod chamber 031,
Flow in rod chamber 031 increases, and 031 volume expansion of rod chamber, 032 volume-diminished of rodless cavity, and then thrust valve is upward
The unlatching of thrust valve is realized in movement；During thrust valve is closed, circuit units 04 are open-minded, the stream in rod chamber 031
Amount flows to hopper 01, the expansion of rodless cavity 032 and 031 volume-diminished of rod chamber by circuit units 04, and then thrust valve is downward
Thrust valve closure is realized in movement.
In order to protect thrust valve unit 03, prevent the pressure in rod chamber 031 excessive, the circuit units 04 are equipped with
Extra pressure for the overflow valve 041 of overvoltage protection, when the pressure in rod chamber 031 is more than rated pressure, in rod chamber 031
Power can force the opening of overflow valve 041 and flow can be back to hopper 01 from overflow valve 041, when the pressure in rod chamber 031 is less than
When equal to rated pressure, overflow valve 041 is closed automatically, is conducive to keep the pressure balance in rod chamber 031, and keep thrust
The operating status of valve.
It is back to hopper 01 in order to improve the flow in rod chamber 031, is additionally provided at least one in the circuit units 04
Circuit subelement 042, at least one described circuit subelement 042 is in parallel with the overflow valve 041 respectively, in specific implementation process
In, settable multiple circuit subelements reserve the redundancy of electrichydraulic control, circuit subelement can also be set as to different reflux stream
Speed is conducive to the control that flows back, and specifically, the circuit subelement is equipped with solenoid valve and throttle valve, the solenoid valve and described
Throttle valve series connection, for solenoid valve convenient for control aperture and corresponding speed, throttle valve is conducive to the flow velocity and flow of setting reflux flow velocity
Size.
Traditional, pneumatic executing agency needs very big cylinder diameter since driving air pressure is not high to ensure high thrust output, we
The case compression fluid high using compression ratio, and as energy-accumulating medium, in the specific implementation process, in the rodless cavity 032
Including compression fluid, the compression fluid includes compressed inert or compressed nitrogen, the thrust valve suitable for high thrust.
For the ease of the control of thrust valve, the thrust valve is set to the hydraulic stem far from the rodless cavity 032
One end, and the electro-hydraulic execution system of the thrust valve further include for detect the first position sensor of thrust valve location and
Second position sensor, the first position sensor and second position sensor can use the sensor of mechanical contact,
For detecting the movement position of thrust valve, and then generate corresponding trigger signal；The first position sensor and second
Setting sensor can be using optoelectronic switch or electromagnetic sensor, when thrust valve is close to the first position sensor and second
The position signal of first position sensor and second position sensor is converted photosignal or magnetic induction by position sensor
Signal, and then trigger response.
The input unit 02 includes oil pump and check valve, and the oil pump and the check valve are connected, the thrust valve
Electro-hydraulic execution system further includes the pressure gauge for pressure detecting and the shut-off valve for pressure protection, the input unit 02
Input terminal it is in parallel with the pressure gauge, the input terminal of the input unit 02 is connected with the shut-off valve.
In another embodiment, a kind of electro-hydraulic execution method of thrust valve, comprising:
There is provided the thrust valve electro-hydraulic execution system；
Input unit is opened, flow is inputted rod chamber from hopper by input unit, and the thrust valve direction is driven to lean on
The direction movement of the nearly rodless cavity；
The access of circuit units is opened, the flow in the rod chamber is delivered to the hopper by the circuit units, and
The thrust valve is driven to be directed away from the direction movement of the rodless cavity.
The electro-hydraulic execution method of thrust valve further include:
The circuit units are equipped with the overflow valve for overvoltage protection, are additionally provided at least one time in the circuit units
Way unit, at least one described circuit subelement are in parallel with the overflow valve respectively；
When the pressure superpressure in the rod chamber, the overflow valve is opened, and the flow in the rod chamber is back to institute
Hopper is stated, the thrust valve keeps current state；
When the circuit subelement is opened, the flow in the rod chamber returns to the hopper, the thrust valve by
Current state is directed away from the direction movement of the rodless cavity.
In order to improve the use reliability of thrust valve, functional safety is needed by certification, SIL (Safety
Integrity Level)-safety integrity level is divided into 4 total grades: SIL1, SIL2, SIL3, SIL4, the function of product
The redundancy of realizing route is higher, and functional safety level authentication rank is higher.The redundancy of conventional products is generally insufficient at present,
Therefore further promoting product function path redundancy degree is also the volume problem for needing further to solve, and also provides a kind of thrust valve
Electro-hydraulic execution system, referring to Fig. 2, Fig. 2 is the structural schematic diagram of the electro-hydraulic execution system of another embodiment thrust valve, fuel tank 1
It is provided for system and runs substantially required hydraulic oil, first filter 2 and the first check valve 5 are respectively arranged in the first high-pressure oil pump
3 inlet port positions and oil outlet position, first motor 4 drive oil pump to rotate pump oil, and high pressure oil passes through the second valve opening shut-off valve 18,
Into cylinder rod chamber, then piston upwards, realize valve opening movement, and the pressure value of high pressure oil can be shown by pressure gauge 10
Out, and circuit 1 and circuit 2 can arbitrarily be entered.First valve opening shut-off valve 11, first closes valve shut-off valve 12, the cut-off of the second valve opening
Valve 18, the second pass valve shut-off valve 19 distinguish whether manually controllable switching circuitry enables.First overflow valve 13, the second overflow valve 20
Can dual control system not superpressure, realize pressure protection.
After the second fast electromagnetic valve 21 or the second energization of solenoid valve 23 opening at a slow speed, promotion of the hydraulic oil in compressed nitrogen
Under, fuel tank 1 is returned to by the second fast throttle valve 22 or the second slow throttle 24, piston moves downward, realizes quickly and slow
Quick-closing valve movement.
Lower position switch 26, upper limit switch 27 are the detecting elements of 25 two extreme positions of gas-liquid composite oil cylinder, are used for
Feed back to control system.Air gauge 29, baroceptor 31, charge valve 30 etc. for detect compressed nitrogen real-time pressure and in time
Pressurising mouth, inflation shut-off valve 28 are the switch valves of three above element.
In conclusion this programme has the special feature that: integrated level is high, quick action, and control redundancy is high, driving moment
Greatly；Integrated level is high: providing a kind of gas-liquid composite oil cylinder, oil cylinder rodless cavity stores compressed nitrogen, and shape is designed as spherical junctions
Structure is especially advantageous for shell stress and is uniformly distributed, and complete machine is different from independent accumulator hydraulic accumulation energy mode, and body product, weight are all non-
Normal advantage；Quick action: it closes valve: using integrated form spherical shape nitrogen energy storing structure, and key is that do not have intermediate connection tube road, is not had
There is energy throttle effect, when energy release, piston is moved down, and pushes piston rod to stretch out, it can be achieved that quickly closing valve events, in fact
Now urgent protection, valve opening: hydraulic oil is pumped into cylinder rod chamber by the rotation of motor driven oil pump, and piston moves up, piston rod contracting
It returns, it can be achieved that electronic controllable valve opening movement；It is high to control redundancy: in order to promote product reliability, functional safety authentication grade
Reach SL3 grades and its ratings above, each link of product is dual redundant design, valve opening: one of bi-motor is any can drive
Executing agency's movement, and motor positive and inverse can act, close valve: closing motion can be realized by sharing 2 circuits: circuit 1, circuit 2,
In each circuit, it is provided with fast loop and at a slow speed circuit, is able to achieve the selectable closing motion of speed.In controlling party
There are two hardware-in-the-loops being independent of each other at face, any one control point, and reliability greatly improves；Driving moment is big: providing
A kind of integrated form gas-liquid composite cylinder, cylinder thrust are determined together by nitrogen pressure and cylinder diameter, before guaranteeing that nitrogen pressure is constant
It puts, cylinder diameter can be increased, can be achieved with high thrust driving.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of electro-hydraulic execution system of thrust valve characterized by comprising
For storing the hopper of flow；
For executing the thrust valve unit of switch, the thrust valve includes rod cavity and rodless cavity, the liquid of the rod chamber
Compression bar is equipped with thrust valve；
For the input unit of input flow rate, one end of the input unit is connected to the hopper, the input unit it is another
One end is connected to the rod chamber；
For the circuit units of return flow, one end of the circuit units is connected to the rod chamber, the circuit units
The other end is connected to the hopper.
2. the electro-hydraulic execution system of thrust valve according to claim 1, it is characterised in that: the circuit units, which are equipped with, to be used
In the overflow valve of overvoltage protection.
3. the electro-hydraulic execution system of thrust valve according to claim 2, it is characterised in that: be additionally provided in the circuit units
At least one circuit subelement, at least one described circuit subelement are in parallel with the overflow valve respectively.
4. the electro-hydraulic execution system of thrust valve according to claim 3, it is characterised in that: the circuit subelement is equipped with
Solenoid valve and throttle valve, the solenoid valve and throttle valve series connection.
5. the electro-hydraulic execution system of thrust valve according to claim 1, it is characterised in that: include compression in the rodless cavity
Fluid.
6. the electro-hydraulic execution system of thrust valve according to claim 1, it is characterised in that: the thrust valve is set to institute
The one end of hydraulic stem far from the rodless cavity is stated, and the electro-hydraulic execution system of the thrust valve further includes for detecting thrust valve
The first position sensor and second position sensor of position.
7. the electro-hydraulic execution system of thrust valve according to claim 1, it is characterised in that: the input unit includes oil pump
And check valve, the oil pump and check valve series connection.
8. according to claim 1 or the electro-hydraulic execution system of thrust valve described in 7, it is characterised in that: the thrust valve electricity
It further includes the pressure gauge for pressure detecting and the shut-off valve for pressure protection that liquid, which executes system, the input unit it is defeated
Enter end it is in parallel with the pressure gauge, the input terminal of the input unit is connected with the shut-off valve.
9. a kind of electro-hydraulic execution method of thrust valve characterized by comprising
The electro-hydraulic execution system of the thrust valve as described in any one of claim 1 to 8 is provided；
Input unit is opened, flow is inputted rod chamber from hopper by input unit, and drives the thrust valve towards close to institute
State the direction movement of rodless cavity；
The access of circuit units is opened, the flow in the rod chamber is delivered to the hopper by the circuit units, and drives
The thrust valve is directed away from the direction movement of the rodless cavity.
10. the electro-hydraulic execution method of thrust valve according to claim 9, which is characterized in that further include:
The circuit units are equipped with the overflow valve for overvoltage protection, at least one circuit is additionally provided in the circuit units
Unit, at least one described circuit subelement are in parallel with the overflow valve respectively；
When the pressure superpressure in the rod chamber, the overflow valve is opened, and the flow in the rod chamber is back to the material
Case, the thrust valve keep current state；
When the circuit subelement is opened, the flow in the rod chamber returns to the hopper, and the thrust valve is by current
State is directed away from the direction movement of the rodless cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480883.3A CN110107549A (en) | 2019-06-04 | 2019-06-04 | A kind of electro-hydraulic execution system and method for thrust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910480883.3A CN110107549A (en) | 2019-06-04 | 2019-06-04 | A kind of electro-hydraulic execution system and method for thrust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110107549A true CN110107549A (en) | 2019-08-09 |
Family
ID=67493700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910480883.3A Pending CN110107549A (en) | 2019-06-04 | 2019-06-04 | A kind of electro-hydraulic execution system and method for thrust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110107549A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2041405C1 (en) * | 1992-03-19 | 1995-08-09 | Угорова Светлана Вениаминовна | Air-operated positioning drive |
| CN201100473Y (en) * | 2007-11-16 | 2008-08-13 | 池双 | Spring energy storage electrolysis joint valve gate executor |
| CN106246624A (en) * | 2016-08-31 | 2016-12-21 | 莱州市蔚仪试验器械制造有限公司 | The pressure holding circuit device of sample pointing machine |
| CN106917782A (en) * | 2017-04-19 | 2017-07-04 | 中冶赛迪工程技术股份有限公司 | A kind of device for preventing discharging valve for top of blast furnace hydraulic cylinder and pipeline evacuation |
| CN207634411U (en) * | 2017-10-25 | 2018-07-20 | 河北润浩康达智能科技有限公司 | A kind of piping lane Electrohydraulic push rod and its hydraulic circuit system |
| RU2689662C1 (en) * | 2018-11-29 | 2019-05-28 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет", (ДГТУ) | Position pneumatic drive |
| CN210106275U (en) * | 2019-06-04 | 2020-02-21 | 重庆川仪自动化股份有限公司 | Electro-hydraulic actuating system of thrust valve |
-
2019
- 2019-06-04 CN CN201910480883.3A patent/CN110107549A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2041405C1 (en) * | 1992-03-19 | 1995-08-09 | Угорова Светлана Вениаминовна | Air-operated positioning drive |
| CN201100473Y (en) * | 2007-11-16 | 2008-08-13 | 池双 | Spring energy storage electrolysis joint valve gate executor |
| CN106246624A (en) * | 2016-08-31 | 2016-12-21 | 莱州市蔚仪试验器械制造有限公司 | The pressure holding circuit device of sample pointing machine |
| CN106917782A (en) * | 2017-04-19 | 2017-07-04 | 中冶赛迪工程技术股份有限公司 | A kind of device for preventing discharging valve for top of blast furnace hydraulic cylinder and pipeline evacuation |
| CN207634411U (en) * | 2017-10-25 | 2018-07-20 | 河北润浩康达智能科技有限公司 | A kind of piping lane Electrohydraulic push rod and its hydraulic circuit system |
| RU2689662C1 (en) * | 2018-11-29 | 2019-05-28 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет", (ДГТУ) | Position pneumatic drive |
| CN210106275U (en) * | 2019-06-04 | 2020-02-21 | 重庆川仪自动化股份有限公司 | Electro-hydraulic actuating system of thrust valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101960153A (en) | Control system for recovering swing motor kinetic energy | |
| CN105003715B (en) | It is a kind of that there is the emergent electro-hydraulic drive system of gate valve and gate valve for closing valve function | |
| CN202322251U (en) | Work arm buffering control system of aerial work platform trucks | |
| CN104747544B (en) | Engineering machinery movable arm potential energy variable amplitude energy recovery device | |
| CN103122894A (en) | Hydraulic system for controlling rotation of boom, control method thereof and concrete pumping equipment | |
| CN106122188B (en) | Conventional overflow valve overflow loss recycle and reuse system based on hydraulic accumulator | |
| CN105090154A (en) | Unloading valve block, opening and closing core hydraulic system and engineering machine | |
| CN100360813C (en) | Integrated electro-hydraulic actuator capable of carrying out quick action and adjustment | |
| CN102862316A (en) | Press machine and hydraulic control system thereof | |
| CN206917957U (en) | Load-sensitive rotary buffering valve and hydraulic system of crane | |
| CN206000793U (en) | A kind of oil cylinder pressure charging system | |
| CN109139583A (en) | A kind of forklift hydraulic control system | |
| CN109488651A (en) | A kind of multi-way valve and electric-control system | |
| CN106567869A (en) | Hydraulic drive device for molding machine | |
| CN110107549A (en) | A kind of electro-hydraulic execution system and method for thrust valve | |
| EP1534956B1 (en) | A control method for controlling the gas flow in a compressor | |
| CN210106275U (en) | Electro-hydraulic actuating system of thrust valve | |
| CN107021435A (en) | With the forklift hydraulic system for absorbing hydraulic pressure impulse circuit | |
| CN208397033U (en) | A kind of hydraulic system and baling press | |
| CN202805720U (en) | Press machine hydraulic control system and press machine | |
| CN105443466A (en) | Hydraulic control system for quick opening cylinder and upper roll balance cylinder of steel tube straightening machine | |
| CN103541342B (en) | For the shock mitigation system of dynamic compaction machine main unit and the dynamic compaction machinery with it | |
| CN209523929U (en) | A kind of spiral rotating oil cylinder quick closedown high-pressure gas-liquid linkage | |
| CN202072444U (en) | Multi-way valve with functions of high pressure load-off, lifting self-lock and manual decline for forklift | |
| CN206985637U (en) | With the forklift hydraulic system for absorbing hydraulic pressure impulse circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |