CN200949577Y - Novel hydraulic actuator - Google Patents
Novel hydraulic actuator Download PDFInfo
- Publication number
- CN200949577Y CN200949577Y CN 200620092992 CN200620092992U CN200949577Y CN 200949577 Y CN200949577 Y CN 200949577Y CN 200620092992 CN200620092992 CN 200620092992 CN 200620092992 U CN200620092992 U CN 200620092992U CN 200949577 Y CN200949577 Y CN 200949577Y
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- China
- Prior art keywords
- pressurized strut
- hydraulic
- valve
- chamber
- control
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- Expired - Fee Related
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Abstract
The utility model provides a new type hydraulic actuator, comprised by an actuating cylinder 1, hydraulic amplification devices (oil dividing valves) 10-14 and a electro-hydraulic servo valve 16, which controls the action of the actuating cylinder 1 and a piston 3 according to the electrical signal, the utility model is characterized in that a emergency piston 2 is arranged in the actuating cylinder 1 to form A, B,C cavities, the emergency valve 6-9 is connected between the hydraulic amplification devices (oil dividing valves) 10-14 and the actuating cylinder 1. The new type hydraulic actuator provided by the utility model has a advantage that when the electric is cut off or at emergency, the actuating cylinder can move back to the neutral position and the speed of moving back to the neutral position can be controlled and the action of the actuating cylinder is reliable.
Description
Technical field
The utility model relates to hydraulic actuator.
Background technique
Traditional hydraulic system actuator adopts the structure (as shown in Figure 2) in 1 liang of chamber of typical control pressurized strut, and hydraulic pressure amplifying device (distributing valve) 10～14 is directly controlled 1 liang of chamber of pressurized strut.During normal working, electrohydraulic control 16 is a hydraulic pressure signal with electrical signal conversion, controls moving of hydraulic pressure amplifying device (distributing valve) guiding valve 12, thereby control flows makes it move by the control requirement to the oil mass in 1 liang of chamber of pressurized strut.Outage or when emergent, the distributing valve control chamber lead to low pressure, hydraulic pressure amplifying device (distributing valve) guiding valve 12 are moved to high order end in the spring force effect, the high pressure oil oil circuit are communicated B chamber feeding low pressure oil with the A chamber.Ultra-Left position is got back in pressurized strut 1.But can't get back to the neutral position.
Summary of the invention
The purpose of this utility model is to provide a kind of novel hydraulic actuator, and the neutral position is got back in its pressurized strut in outage or when emergent.
The utility model provides a kind of novel hydraulic actuator, constitute by pressurized strut 1, hydraulic pressure amplifying device (distributing valve) 10～14 and electrohydraulic control 16, electrohydraulic control 16 is pressed the moving of piston of electrical signal control pressurized strut 1, it is characterized in that: 1 li of described pressurized strut is except piston 3, also has emergency piston 2, form A, B, C three chambeies, between hydraulic pressure amplifying device (distributing valve) 10～14 and pressurized strut 1, be connected to emergent valve 6～9.
During the control system proper functioning: when connecting electrohydraulic control 16 electrical signal, level pressure oil enters hydraulic pressure amplifying device (distributing valve) 10～14 control chambers and emergent valve 6～9 control chambers after controlling by electrohydraulic control 16.The difference signal that electrohydraulic control 16 is accepted from electronic controller, the relative equilibrium position of control hydraulic pressure amplifying device (distributing valve) guiding valve 12 changes the rod chamber A of pressurized strut 1 and the oil pressure of rodless cavity B, and then the displacement of control pressurized strut 1.
Outage or when emergent, electrohydraulic control 16 outages in the actuator, control chamber and low-pressure cavity are linked up, control chamber pressure reduces, hydraulic pressure amplifying device (distributing valve) guiding valve 12 and emergent valve guiding valve 8 are moved to high order end in the effect of spring 13 and 9 respectively, the high pressure oil oil circuit is communicated with the A chamber and the C chamber of pressurized strut, and the B chamber leads to low pressure oil.Under the acting in conjunction of high pressure oil, piston area, pressurized strut 1 left and right sides two-piston moves to the centre simultaneously, when reaching equilibrium of forces, stops at the neutral position.
The novel hydraulic actuator that the utility model provides is connected to hydraulic lock 15 between its hydraulic pressure amplifying device (distributing valve) 10～14 and the electrohydraulic control 16.Outage or when emergent, hydraulic lock 15, electrohydraulic control 16 outages (or hydraulic lock 15 is cut off the power supply separately) in the actuator, the guiding valve of hydraulic lock 15 moves down under the spring force effect, cut off the control chamber oil circuit of electrohydraulic control 16 load windows and hydraulic pressure amplifying device (distributing valve) 10～14, emergent valve 6～9, make hydraulic pressure amplifying device (distributing valve) 10～14 not be subjected to the inclined to one side influence of electrohydraulic control 16 0, make the startup of this hydraulic actuator and stop more reliable.
The novel hydraulic actuator that the utility model provides, be connected to flow nipple 5 between the A chamber of the oil suction chamber of its emergent valve 6～9 and pressurized strut, so that, change the oil-filled speed of high pressure oil, thereby 1 time medium velocity of control pressurized strut toward pressurized strut 1 by changing the flow nipple 5 of different sizes.
The novel hydraulic actuator that the utility model provides is characterized in that: be provided with oil filter 4 before the A of described pressurized strut 1, B, the C three chamber imports, the hydraulic oil that enters pressurized strut 1 kept clean, to guarantee pressurized strut 1 reliably working.
The novel hydraulic actuator that the utility model provides, its advantage is: its pressurized strut is in outage or get back to the neutral position when emergent, and it is controlled that medium velocity is returned in pressurized strut, the pressurized strut reliable operation.
Description of drawings
Fig. 1 is the structural representation of novel hydraulic actuator;
Fig. 2 is the structural representation of traditional hydraulic actuator.
Embodiment
The structure of novel hydraulic actuator as shown in Figure 1, constitute by electrohydraulic control 16, hydraulic lock 15, hydraulic pressure amplifying device (distributing valve) 10～14, emergent valve 6～9 and pressurized strut 1, hydraulic lock 15 is connected between electrohydraulic control 16 and the hydraulic pressure amplifying device (distributing valve) 10～14, and emergent valve 6～9 is connected between hydraulic pressure amplifying device (distributing valve) 10～14 and the pressurized strut 1.
Pressurized strut also has piston and emergency piston 2 for 1 li, forms A, B, C three chambeies.Be provided with oil filter 4 before pressurized strut 1A, B, the C three chamber imports.
Emergent valve 6～9 is made of lining 7, guiding valve 8, spring 9 and spring seat 6 etc.Be connected to flow nipple 5 between the oil suction chamber of emergent valve 6～9 and the A chamber of pressurized strut.
Hydraulic pressure amplifying device (distributing valve) 10～14 is made of linear movement pick-up 10, lining 11, guiding valve 12, spring 13 and spring seat 14 etc.
During the control system proper functioning: when connecting the electrical signal of electrohydraulic control 16 and hydraulic lock 15, level pressure oil is through electrohydraulic control 16 controls, after hydraulic lock 15, enter hydraulic pressure amplifying device (distributing valve) 10～14 control chambers and emergent valve 6～9 control chambers.The difference signal that electrohydraulic control 16 is accepted from electronic controller, the relative equilibrium position of control hydraulic pressure amplifying device (distributing valve) 10～14 changes the rod chamber A of pressurized strut 1 and the oil pressure of rodless cavity B, and then the displacement of control pressurized strut 1.
Outage or when emergent, hydraulic lock 15, electrohydraulic control 16 outages (or hydraulic lock 15 is cut off the power supply separately) in the actuator, the guiding valve of hydraulic lock 15 moves down under the spring force effect, cut off the control chamber oil circuit of electrohydraulic control 16 load windows and hydraulic pressure amplifying device (distributing valve) 10～14, the valve 6～9 of meeting an urgent need, make hydraulic pressure amplifying device (distributing valve) 10～14 not be subjected to the inclined to one side influence of electrohydraulic control 16 0.Control chamber and low-pressure cavity are linked up, control chamber pressure reduces, hydraulic pressure amplifying device (distributing valve) guiding valve 12 and emergent valve guiding valve 8 are moved to high order end in the effect of spring 13 and 9 respectively, the high pressure oil oil circuit is communicated with the A chamber and the C chamber of pressurized strut 1, and the B chamber of pressurized strut 1 feeds low pressure oil.Under the acting in conjunction of high pressure oil, piston area, the piston 3 of pressurized strut 1 and emergency piston 2 move to the centre simultaneously, when reaching equilibrium of forces, stop at the neutral position.
The flow nipple 5 that is connected between the oil suction chamber of emergent valve 6～9 and the A chamber of pressurized strut changes the oil-filled speed of high pressure oil, thereby controls 1 time medium velocity of pressurized strut by changing the flow nipple 5 of different sizes.
The oil filter 4 that is provided with before the A of pressurized strut 1, B, the C three chamber imports keeps clean the hydraulic oil that enters pressurized strut 1, to guarantee pressurized strut 1 reliably working.
Claims (4)
1, a kind of novel hydraulic actuator, by pressurized strut (1), hydraulic pressure amplifying device is that distributing valve (10～14), electrohydraulic control (16) constitute, electrohydraulic control (16) is pressed the moving of piston of electrical signal control pressurized strut (1), it is characterized in that: described pressurized strut (1) lining is except piston (3), also has emergency piston (2), forming A, B, C three chambeies, is to be connected to emergent valve (6～9) between distributing valve (10～14) and the pressurized strut (1) at the hydraulic pressure amplifying device.
2, according to the described novel hydraulic of claim 1 actuator, it is characterized in that: described hydraulic pressure amplifying device is to be connected to hydraulic lock (15) between distributing valve (10～14) and the electrohydraulic control (16).
3, according to the described novel hydraulic of claim 1 actuator, it is characterized in that: be connected to flow nipple (5) between the oil suction chamber of described emergent valve (6～9) and the A chamber of pressurized strut.
4, according to the described novel hydraulic of claim 1 actuator, it is characterized in that: be provided with oil filter (4) before A, the B of described pressurized strut (1), the C three chamber imports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092992 CN200949577Y (en) | 2006-08-30 | 2006-08-30 | Novel hydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092992 CN200949577Y (en) | 2006-08-30 | 2006-08-30 | Novel hydraulic actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200949577Y true CN200949577Y (en) | 2007-09-19 |
Family
ID=38892119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620092992 Expired - Fee Related CN200949577Y (en) | 2006-08-30 | 2006-08-30 | Novel hydraulic actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200949577Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937528A (en) * | 2012-10-31 | 2013-02-20 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for adjusting supercharging conversion rotation speed of aero engine |
| CN103195585A (en) * | 2013-04-12 | 2013-07-10 | 长春航空液压控制有限公司 | Anti-surge valve |
-
2006
- 2006-08-30 CN CN 200620092992 patent/CN200949577Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937528A (en) * | 2012-10-31 | 2013-02-20 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for adjusting supercharging conversion rotation speed of aero engine |
| CN102937528B (en) * | 2012-10-31 | 2014-12-24 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for adjusting supercharging conversion rotation speed of aero engine |
| CN103195585A (en) * | 2013-04-12 | 2013-07-10 | 长春航空液压控制有限公司 | Anti-surge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070919 Termination date: 20140830 |
|
| EXPY | Termination of patent right or utility model |