CN109296572A - A kind of novel single-acting electrohydraulic actuator self-insurance control device - Google Patents
A kind of novel single-acting electrohydraulic actuator self-insurance control device Download PDFInfo
- Publication number
- CN109296572A CN109296572A CN201811322104.9A CN201811322104A CN109296572A CN 109296572 A CN109296572 A CN 109296572A CN 201811322104 A CN201811322104 A CN 201811322104A CN 109296572 A CN109296572 A CN 109296572A
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- CN
- China
- Prior art keywords
- oil
- valve
- connect
- way valve
- control
- 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.)
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
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- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
-
- 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
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
Abstract
The invention discloses a kind of novel single-acting electrohydraulic actuator self-insurance control devices, including execution unit and self-insurance control unit, execution unit includes oil cylinder, the executing agency being connect with oil cylinder output end, and reset assembly, self-insurance control unit includes valve body and hydraulic control one-way valve, the T oil return opening of hydraulic control one-way valve is connect with fuel tank, the P oil inlet of hydraulic control one-way valve is connected by the rodless cavity of working connection and oil cylinder, the control oil circuit mouth of hydraulic control one-way valve is connect by the first check valve with working connection, the P oil inlet of valve body is connect by second one-way valve with oil sources, the A hydraulic fluid port of valve body is connect with the control oil circuit mouth of hydraulic control one-way valve and the first check valve respectively, the T oil return opening of valve body is connect with the fuel tank；By the cooperation of hydraulic control one-way valve, valve body and the first check valve, second one-way valve, so that avoiding the phenomenon that causing system to miscarry self-insurance because of oil supply pressure decline, while also ensuring that valve body switching self protective function in use is normally realized in normal use.
Description
Technical field
The present invention relates to hydraulic control oil circuit correlative technology field more particularly to a kind of novel single-acting electrohydraulic actuators
Self-insurance control device.
Background technique
Single-acting electrohydraulic actuator is widely used in valve control at present, and spring stores energy structure is simple, general to use
In needing self-resetting valve control, but spring box has a biggish power to act in executing agency always, traditional electro-hydraulic to hold
The self-protective structure of row mechanism (as shown in Figure 2) is easy when hydraulic system can not establish pressure, oil supply pressure decline, when oil sources pressure
The power that the power that power acts on hydraulic control one-way valve is less than spring box is transmitted to the power on hydraulic control one-way valve, hydraulic control list by hydraulic oil
It is opened to valve, miscarries self-insurance for generating, cause whole device to be stopped work, strong influence processing performance and enterprise profit.
Summary of the invention
The use of the new type technical problems to be solved are to overcome existing technological deficiency, and it is electro-hydraulic to provide a kind of novel single-acting
Executing agency's self-insurance control device, can effectively solve the problems in background technique.
In order to solve the above technical problems, one technical scheme adopted by the invention is that；
A kind of novel single-acting electrohydraulic actuator self-insurance control device, including execution unit and self-insurance control unit are provided,
The execution unit includes oil cylinder, the executing agency connecting with oil cylinder output end and is arranged in executing agency far from oil cylinder one
The reset assembly at end, the self-insurance control unit include valve body and hydraulic control one-way valve, the T oil return opening and oil of the hydraulic control one-way valve
The P oil inlet of case connection, the hydraulic control one-way valve is connected by the rodless cavity of working connection and oil cylinder, the control of the hydraulic control one-way valve
Liquefaction crossing is connect by the first check valve with the working connection, and the P oil inlet of the valve body passes through second one-way valve and oil sources
Connection, the A hydraulic fluid port of the valve body are connect with the control oil circuit mouth of the hydraulic control one-way valve and the first check valve respectively, the valve body
T oil return opening connect with the fuel tank.
Further, the reset assembly is spring box.
Further, the valve body is two-position three way magnetic valve.
Further, the rodless cavity of the oil cylinder is circumscribed with control valve by the working connection.
Further, the P oil inlet of first check valve is connect with the working connection, and the T of first check valve is returned
Hydraulic fluid port is connect with the A hydraulic fluid port of the control oil circuit mouth of the hydraulic control one-way valve and valve body respectively.
Further, the P oil inlet of the second one-way valve is connect with oil sources, the T oil return opening of the second one-way valve with
The P oil inlet of the valve body connects.
Beneficial effects of the present invention: a kind of novel single-acting electrohydraulic actuator self-insurance control device of the present invention passes through hydraulic control
The cooperation of check valve, valve body and the first check valve, second one-way valve, so that avoiding in normal use because under oil supply pressure
The phenomenon that dropping and system caused to miscarry self-insurance, while also ensuring that valve body switching self protective function in use is normally realized.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structure of novel one preferred embodiment of single-acting electrohydraulic actuator self-insurance control device of the invention
Schematic diagram；
Fig. 2 is the structure principle chart of traditional self-insurance control device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1, a kind of novel single-acting electrohydraulic actuator self-insurance control device according to the present invention, including
Execution unit 1 and self-insurance control unit 2, the executing agency that the execution unit 1 includes oil cylinder 11, connect with 11 output end of oil cylinder
12 and reset assembly 13 of the executing agency 12 far from 11 one end of oil cylinder is set, the self-insurance control unit 2 includes valve body 21
It is connect with the T oil return opening 221 of hydraulic control one-way valve 22, the hydraulic control one-way valve with fuel tank, the P oil inlet of the hydraulic control one-way valve
222 are connect by working connection 3 with the rodless cavity of oil cylinder 11, and the control oil circuit mouth 223 of the hydraulic control one-way valve is unidirectional by first
Valve 23 is connect with the working connection 3, and the P oil inlet 211 of the valve body is connect by second one-way valve 24 with oil sources, the valve body
A hydraulic fluid port 212 connect respectively with the control oil circuit mouth 223 of the hydraulic control one-way valve and the first check valve 23, the T of the valve body is returned
Hydraulic fluid port 213 is connect with the fuel tank.
In the present embodiment, the reset assembly 13 is spring box.
In the present embodiment, the valve body 21 is two-position three way magnetic valve.
In the present embodiment, the rodless cavity of the oil cylinder 11 is circumscribed with control valve by the working connection 3.
In the present embodiment, the P oil inlet 231 of first check valve is connect with the working connection 3, first check valve
T oil return opening 232 connect respectively with the A hydraulic fluid port 212 of the control oil circuit mouth 223 of the hydraulic control one-way valve 22 and valve body 21.
In the present embodiment, the P oil inlet 241 of the second one-way valve is connect with oil sources, the T oil return of the second one-way valve
Mouth 242 is connect with the P oil inlet 211 of the valve body 21.
When specific works, as shown in Figure 1, existing for a kind of novel single-acting electrohydraulic actuator self-insurance control device of the present invention
Normal operating conditions of the valve body 21 when obtaining electric, hydraulic control one-way valve 22 keeps cut-off, when there is oil supply pressure decline, bullet at this time
The restoring force of spring case passes through the control that the first check valve 23 is transmitted to hydraulic control one-way valve 22 in the pressure that the rodless cavity of oil cylinder 11 generates
Liquefaction road, and pressure is kept by second one-way valve 24, guarantee the off state of hydraulic control one-way valve 22, avoids missing because of hydraulic system
Throw self-insurance；
When 21 power loss of valve body, the restoring force of spring box is transmitted in the pressure that the rodless cavity of oil cylinder 11 generates by working connection 3
The P oil inlet 222 of hydraulic control one-way valve 22, so that hydraulic control one-way valve 22 is opened, the first check valve 23 can not be single by second at this time
Keep pressure conduction to the control oil circuit mouth 223 of hydraulic control one-way valve 22 to valve 24, so that hydraulic control one-way valve 22 is kept open,
Realize self protective function.
In conclusion by means of above-mentioned technical proposal of the invention, a kind of novel single-acting electrohydraulic actuator of the present invention
Self-insurance control device passes through the cooperation of hydraulic control one-way valve, valve body and the first check valve, second one-way valve, so that in normal use
When, the phenomenon that causing system to miscarry self-insurance because of oil supply pressure decline is avoided, while also ensuring valve body switching in use certainly
Protect normally functioning realization.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of novel single-acting electrohydraulic actuator self-insurance control device, which is characterized in that including execution unit (1) and self-insurance
Control unit (2), the execution unit (1) include oil cylinder (11), the executing agency (12) being connect with oil cylinder (11) output end, with
And setting, in the reset assembly (13) of executing agency (12) far from oil cylinder (11) one end, the self-insurance control unit (2) includes valve
The T oil return opening (221) of body (21) and hydraulic control one-way valve (22), the hydraulic control one-way valve is connect with fuel tank, the hydraulic control one-way valve
P oil inlet (222) connect with the rodless cavity of oil cylinder (11) by working connection (3), the control oil circuit mouth of the hydraulic control one-way valve
(223) it is connect by the first check valve (23) with the working connection (3), the P oil inlet (211) of the valve body is unidirectional by second
Valve (24) is connect with oil sources, the A hydraulic fluid port (212) of the valve body respectively with the control oil circuit mouth (223) of the hydraulic control one-way valve and
First check valve (23) connection, the T oil return opening (213) of the valve body are connect with the fuel tank.
2. a kind of novel single-acting electrohydraulic actuator self-insurance control device according to claim 1, which is characterized in that institute
Stating reset assembly (13) is spring box.
3. a kind of novel single-acting electrohydraulic actuator self-insurance control device according to claim 2, which is characterized in that institute
Stating valve body (21) is two-position three way magnetic valve.
4. a kind of novel single-acting electrohydraulic actuator self-insurance control device according to claim 3, which is characterized in that institute
The rodless cavity for stating oil cylinder (11) is circumscribed with control valve by the working connection (3).
5. a kind of novel single-acting electrohydraulic actuator self-insurance control device according to claim 4, which is characterized in that institute
The P oil inlet (231) for stating the first check valve is connect with the working connection (3), the T oil return opening (232) point of first check valve
It is not connect with the A hydraulic fluid port (212) of the control oil circuit mouth (223) of the hydraulic control one-way valve and valve body.
6. a kind of novel single-acting electrohydraulic actuator self-insurance control device according to claim 5, which is characterized in that institute
The P oil inlet (241) for stating second one-way valve is connect with oil sources, the T oil return opening (242) and the valve body of the second one-way valve
(21) P oil inlet (211) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322104.9A CN109296572A (en) | 2018-11-08 | 2018-11-08 | A kind of novel single-acting electrohydraulic actuator self-insurance control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322104.9A CN109296572A (en) | 2018-11-08 | 2018-11-08 | A kind of novel single-acting electrohydraulic actuator self-insurance control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109296572A true CN109296572A (en) | 2019-02-01 |
Family
ID=65146312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811322104.9A Pending CN109296572A (en) | 2018-11-08 | 2018-11-08 | A kind of novel single-acting electrohydraulic actuator self-insurance control device |
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| CN (1) | CN109296572A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201100474Y (en) * | 2007-11-16 | 2008-08-13 | 池双 | Energy-storage electrolysis joint valve gate executor |
| CN101813104A (en) * | 2009-12-31 | 2010-08-25 | 上海汇益控制系统股份有限公司 | Quickly-propelled low-power and energy-saving hydraulic servo-actuator |
| CN201650941U (en) * | 2010-02-08 | 2010-11-24 | 上海汇益控制系统股份有限公司 | Unidirectional and quick-retracting battery solution servo system |
| CN201650942U (en) * | 2010-02-08 | 2010-11-24 | 上海汇益控制系统股份有限公司 | Electro-hydraulic servo system of fast bidirectional switch |
| CN203532360U (en) * | 2013-11-14 | 2014-04-09 | 中联重科股份有限公司 | Hydraulic pressurization system |
| CN108488128A (en) * | 2018-05-03 | 2018-09-04 | 九江东升科技开发有限公司 | A kind of novel single-acting electrohydraulic actuator self-insurance control device |
-
2018
- 2018-11-08 CN CN201811322104.9A patent/CN109296572A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201100474Y (en) * | 2007-11-16 | 2008-08-13 | 池双 | Energy-storage electrolysis joint valve gate executor |
| CN101813104A (en) * | 2009-12-31 | 2010-08-25 | 上海汇益控制系统股份有限公司 | Quickly-propelled low-power and energy-saving hydraulic servo-actuator |
| CN201650941U (en) * | 2010-02-08 | 2010-11-24 | 上海汇益控制系统股份有限公司 | Unidirectional and quick-retracting battery solution servo system |
| CN201650942U (en) * | 2010-02-08 | 2010-11-24 | 上海汇益控制系统股份有限公司 | Electro-hydraulic servo system of fast bidirectional switch |
| CN203532360U (en) * | 2013-11-14 | 2014-04-09 | 中联重科股份有限公司 | Hydraulic pressurization system |
| CN108488128A (en) * | 2018-05-03 | 2018-09-04 | 九江东升科技开发有限公司 | A kind of novel single-acting electrohydraulic actuator self-insurance control device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190201 |
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| RJ01 | Rejection of invention patent application after publication |