CN205504145U - Integrated type electro -hydraulic control device - Google Patents
Integrated type electro -hydraulic control device Download PDFInfo
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- CN205504145U CN205504145U CN201521110128.XU CN201521110128U CN205504145U CN 205504145 U CN205504145 U CN 205504145U CN 201521110128 U CN201521110128 U CN 201521110128U CN 205504145 U CN205504145 U CN 205504145U
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Abstract
The utility model provides an integrated type electro -hydraulic control device, the problem that solve is: each device integration of electro -hydraulic control system on an integrated package, without the tube coupling. The utility model discloses a main points are: it includes motor and two travel switch, and from two hydraulic fluid ports of two -way gear pump, open two oil duct to integrated package right hand edges that oil right on the integrated package, the pneumatic cylinder is fixed on integrated block right hand edge, two hydraulic fluid ports of pneumatic cylinder and two oil duct mouths butt joints of oiling of integrated block right hand edge, two check valves in proper order on every oils the oil duct, the load mouth of balanced valve connects on the oil duct that oils, open three way type oil return oil duct on the integrated package, the oil -out of two balanced valves is received respectively to the upper and lower oil duct mouth of vertical oil duct of three way type oil return oil duct, and horizontal oil duct connects the drain tap at two -way gear pump, the fixed oil tank of lower limb of integrated package, all oil ducts are the river course formula. The utility model discloses an actively the effect is: whole device is compact, hydraulic oil is kept apart with the air, is showing the reliability that has improved electro -hydraulic control system.
Description
Technical field
This utility model relates to a kind of electrohydraulic control system, a kind of integrating electro-hydraulic adjusting means.
Background technology
Electro-hydraulic control system is for controlling the aperture of valve and positioning.Traditional electro-hydraulic control system includes, the equipment such as hydraulic pump, hydraulic valve, hydraulic cylinder, controller, fuel tank and hydraulic services are linked together by hydraulic oil pipeline, installation site sensor in the stroke of hydraulic cylinder piston rod, the sliding end of position sensor is installed on the piston rod, and position sensor is the feedback element of system controller.When controller accepts host computer input signal (4 ~ 20mA), make motor rotate forward, drive cylinder piston rod to stretch out, the position (position of corresponding valve) of the cylinder piston rod of position sensor detection simultaneously, and feed back to controller.When the position of the setting of host computer is identical with cylinder piston rod physical location, motor stalls, cylinder piston rod also stops stretching out, and is in a new position.So cylinder piston rod (executor) can export the displacement proportional to input signal, it is achieved closed loop control.Owing to each equipment of system is that discrete state is individually present, fuel tank therein is used to store hydraulic oil and heat radiation etc., when hydraulic work system, the liquid level of fuel tank can change, so general fuel tank is provided with breathing equipment and communicates with air, so impurity is easily accessible oil system, the fault such as bite causing hydraulic valve, poor reliability.Control the occasion such as valve, air door in electrohydraulic control system, there is the problems such as bulky, difficult in maintenance.
Summary of the invention
For solving above-mentioned technical problem, the purpose of this utility model is to provide a kind of integrating electro-hydraulic adjusting means, this device is each integration of equipments of electrohydraulic control system on an integrated package, between these equipment by without pipeline connect, make whole device compact, seal.
The purpose of this utility model is achieved in that it includes motor, double-direction gearpump, hydraulic cylinder and position sensor, it is characterized in that: described double-direction gearpump is fixed on the left of integrated package, from double-direction gearpump two go out/inlet port P1 and P2, on integrated package, open to the right P1 oil oil duct and P2 oils oil duct, the two oil duct that oils all reaches the right hand edge of integrated package, two oil duct junctions that oil are formed at integrated package right hand edge, hydraulic cylinder is fixed on integrated bulk right hand edge, and two hydraulic fluid ports of hydraulic cylinder dock with two oil duct junctions that oil of integrated bulk right hand edge；
Connecing the first and second check valves on each oil duct that oils successively, wherein the first check valve has two oil-outs, two through being connected on of oil-out to oil on oil duct；What the oil-in of the second check valve was connected on double-direction gearpump side oils on oil duct, and the oil-out of the second check valve is connected on the oiling on oil duct of hydraulic cylinder side；The load port of balanced valve is connected on oiling on oil duct between the second check valve and hydraulic cylinder；
The two ends of the first pilot oil duct are the oil duct that P1 oils the pilot port of balanced valve on oil duct and P2 oils on oil duct between two check valves respectively；The two ends of the second pilot oil duct are the oil duct that P2 oils the pilot port of balanced valve on oil duct and P1 oils on oil duct between two check valves respectively；
Integrated package is opened three way type oil return oil duct, oil between oil duct at two, 2. the upper and lower oil duct junction of longitudinal oil duct of three way type oil return oil duct is coupled with the oil-out of two balanced valves, and the horizontal oil duct left end oil duct junction of three way type oil return oil duct is connected on the drain tap of double-direction gearpump；The upper orifice of fuel sucking pipe, the oil-in of two the first check valves are connected on the horizontal oil duct of three way type oil return oil duct successively；
At the lower limb fixed oil tank of integrated package, the lower limb of integrated package becomes the case lid of fuel tank, and the lower port of fuel sucking pipe inserts fuel tank；
Above-mentioned all of oil duct is river channel type；All of valve is fixed on integrated package.
Installation site sensor in the stroke of hydraulic cylinder piston rod, the sliding end of position sensor is installed on the piston rod.
When the position needing hydraulic cylinder piston rod to reach setting, controller accepts host computer input signal (4 ~ 20mA), start motor and double-direction gearpump rotates forward, double-direction gearpump P1 mouth is oil-out, P2 mouth is inlet port, and hydraulic oil enters P1 and oils oil duct, sequentially passes through two oil-outs and second check valve of the first check valve, enter hydraulic cylinder rodless cavity, promote cylinder piston rod to stretch out.This hydraulic oil simultaneously enter P1 oil the overflow valve oil-in of oil duct and P2 oil oil duct balanced valve pilot port 3..
After piston rod stretches out, hydraulic oil in hydraulic cylinder rod chamber enters P2 and oils oil duct, it is applied to the load port of balanced valve of this oil duct 1., this balanced valve main valve plug is opened under pilot port pressure 3. and load port pressure 1. act on jointly, make its load port 1. 2. communicate with oil-out, P2 oil oil duct hydraulic oil through this balanced valve enter three way type oil return oil duct；Being applied to P2 oil the oil-in of the first check valve on oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P2 mouth of double-direction gearpump.Hydraulic cylinder rod chamber volume is less than the volume of rodless cavity in general, and then oil cylinder oil pump capacity is less than oil inlet quantity, and double-direction gearpump drain tap P2 and fuel sucking pipe fill into system from fuel tank oil suction.
In cylinder piston rod stretches out operation, position sensor detects the physical location of cylinder piston rod constantly, and feeds back to controller.When the position that host computer sets is identical with cylinder piston rod physical location, motor stalls, cylinder piston rod also stops stretching out, and is in a new position and positions；
When system such as position sensor or controller break down, piston rod all stretches out and is stuck, P1 oil oil duct hydraulic fluid pressure raise, when be increased to P1 oil oil duct the setting pressure of overflow valve time, the main valve plug of overflow valve is opened, the hydraulic oil of oil duct of being oiled by P1 lets out short circuit oil duct and oil return oil duct successively, returns to double-direction gearpump P2 mouth.
When the position needing hydraulic cylinder piston rod to be retracted into setting, controller accepts host computer input signal, start motor and double-direction gearpump reversion, P2 mouth is oil-out, P1 mouth is inlet port, and hydraulic oil enters P2 and oils oil duct, sequentially passes through two oil-outs and second check valve of the second check valve, enter hydraulic cylinder rod chamber, promote cylinder piston rod to retract.This hydraulic oil simultaneously enter P2 oil oil duct overflow valve oil-in and P1 oil oil duct balanced valve pilot port 3..
After piston rod is retracted, hydraulic oil in hydraulic cylinder rodless cavity enters P1 and oils oil duct, act on the load port of balanced valve of this oil duct 1., this balanced valve main valve plug is opened under pilot port pressure 3. and load port pressure 1. act on jointly, make its load port 1. 2. communicate with oil-out, P1 oil oil duct hydraulic oil through this balanced valve enter three way type oil return oil duct；Being applied to P1 oil the oil-in of the first check valve of oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P1 mouth of double-direction gearpump.Owing to oil cylinder oil pump capacity is more than oil inlet quantity, unnecessary oil mass enters fuel tank from fuel sucking pipe.
In cylinder piston rod is retracted and run, position sensor detects the physical location of cylinder piston rod constantly, and feeds back to controller.When the position that host computer sets is identical with cylinder piston rod physical location, motor stalls, cylinder piston rod also stops retracting, is in a new position and positions；
When system such as position sensor or controller break down, piston rod is fully retracted into being stuck, P2 oil oil duct hydraulic fluid pressure raise, when be increased to P2 oil oil duct the setting pressure of overflow valve time, the main valve plug of overflow valve is opened, the hydraulic oil of oil duct of being oiled by P2 lets out short circuit oil duct and oil return oil duct successively, returns to double-direction gearpump P1 mouth.
Compared with prior art, good effect of the present utility model is: whole device is compact, does not lose power, it is simple to installs and transports；Impurity in air can not enter in hydraulic oil, hydraulic oil is the most oxidizable simultaneously, it is to avoid the problem that hydraulic oil is aging.Control the action such as valve, air door occasion infrequently, significantly improve the reliability of electrohydraulic control system.
Accompanying drawing explanation
Further illustrate this utility model below in conjunction with the accompanying drawings.
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Detailed description of the invention
It includes motor 1, double-direction gearpump 2, hydraulic cylinder 10 and position sensor 15, described double-direction gearpump 2 is fixed on the left of integrated package 3, from double-direction gearpump two go out/inlet port P1 and P2, on integrated package, open to the right the P1 oil duct 4 and P2 that oils oil oil duct 4 ', the two oil duct that oils all reaches the right hand edge 31 of integrated package, two oil duct junctions that oil are formed at integrated package right hand edge, hydraulic cylinder 10 is fixed on integrated bulk right hand edge, and two hydraulic fluid ports 101 of hydraulic cylinder dock with two oil duct junctions that oil of integrated bulk right hand edge；
Connecing the first check valve 5 and the second check valve 7 on P1 oils oil duct successively, wherein 2. the first check valve has two oil-outs, and two through being connected on of oil-out oil on oil duct；What 1. the oil-in of the second check valve was connected on double-direction gearpump side oils on oil duct, and 2. the oil-out of the second check valve is connected on the oiling on oil duct of hydraulic cylinder side；1. the load port of balanced valve 9 is connected on oiling on oil duct between the second check valve and hydraulic cylinder；Connecing the first check valve 5 ' and the second check valve 7 ' on P2 oils oil duct successively, wherein 2. the first check valve has two oil-outs, and two through being connected on of oil-out oil on oil duct；What 1. the oil-in of the second check valve was connected on double-direction gearpump side oils on oil duct, and 2. the oil-out of the second check valve is connected on the oiling on oil duct of hydraulic cylinder side；The load port of balanced valve 9 ' is 1. connected on oiling on oil duct between the second check valve and hydraulic cylinder；
The two ends of the first pilot oil duct 11 be respectively P1 oil the pilot port of balanced valve on oil duct 3. and P2 oil oil duct two check valves between oil duct；The two ends of the second pilot oil duct 11 ' be respectively P2 oil the pilot port of balanced valve on oil duct 3. and P1 oil oil duct two check valves between oil duct；
Integrated package is opened three way type oil return oil duct 8, oil between oil duct at two, 2. the upper and lower oil duct junction of longitudinal oil duct 82 of three way type oil return oil duct is coupled with the oil-out of two balanced valves, and the horizontal oil duct 81 left end oil duct junction of three way type oil return oil duct is connected on the drain tap P3 of double-direction gearpump；The upper orifice of fuel sucking pipe 14, two the first check valves oil-in 1., the oil-out of two overflow valves is connected on the horizontal oil duct of three way type oil return oil duct the most successively；
Oiling at P1 and arrange short circuit oil duct 12 between oil duct and three way type oil return oil duct, arrange pilot operated compound relief valve 6 on short circuit oil duct, 1. the oil-in of overflow valve 6 is connected on oiling on oil duct between the first and second check valves；Oiling at P2 and arrange short circuit oil duct 12 ' between oil duct and three way type oil return oil duct, arrange pilot operated compound relief valve 6 ' on short circuit oil duct, the oil-in of overflow valve 6 ' is 1. connected on oiling on oil duct between the first and second check valves；
At the lower limb fixed oil tank 13 of integrated package, the lower limb of integrated package becomes the case lid of fuel tank, and the lower port of fuel sucking pipe 14 inserts fuel tank；
Above-mentioned all of oil duct is river channel type；All of valve is fixed on integrated package.
Installation site sensor in the stroke of hydraulic cylinder piston rod, the sliding end of position sensor is installed on the piston rod.
When the position needing hydraulic cylinder piston rod to reach setting, controller accepts host computer input signal (4 ~ 20mA), start motor and double-direction gearpump rotates forward, double-direction gearpump P1 mouth is oil-out, P2 mouth is inlet port, and hydraulic oil enters P1 and oils oil duct, sequentially passes through two oil-outs and second check valve of the first check valve, enter hydraulic cylinder rodless cavity, promote cylinder piston rod 102 to stretch out.This hydraulic oil simultaneously enter P1 oil the overflow valve oil-in of oil duct and P2 oil oil duct balanced valve pilot port 3..
After piston rod stretches out, hydraulic oil in hydraulic cylinder rod chamber enters P2 and oils oil duct, it is applied to the load port of balanced valve of this oil duct 1., this balanced valve main valve plug is opened under pilot port pressure 3. and load port pressure 1. act on jointly, make its load port 1. 2. communicate with oil-out, P2 oil oil duct hydraulic oil through this balanced valve enter three way type oil return oil duct；Being applied to P2 oil the oil-in of the first check valve on oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P2 mouth of double-direction gearpump.Hydraulic cylinder rod chamber volume is less than the volume of rodless cavity in general, and then oil cylinder oil pump capacity is less than oil inlet quantity, and double-direction gearpump drain tap P2 and fuel sucking pipe fill into system from fuel tank oil suction.
In cylinder piston rod stretches out operation, position sensor detects the physical location of cylinder piston rod constantly, and feeds back to controller.When the position that host computer sets is identical with cylinder piston rod physical location, motor stalls, cylinder piston rod also stops stretching out, and is in a new position and positions；
When system such as position sensor or controller break down, piston rod all stretches out and is stuck, P1 oil oil duct hydraulic fluid pressure raise, when be increased to P1 oil oil duct the setting pressure of overflow valve time, the main valve plug of overflow valve is opened, the hydraulic oil of oil duct of being oiled by P1 lets out short circuit oil duct and oil return oil duct successively, returns to double-direction gearpump P2 mouth.
When the position needing hydraulic cylinder piston rod to be retracted into setting, controller accepts host computer input signal, start motor and double-direction gearpump reversion, P2 mouth is oil-out, P1 mouth is inlet port, and hydraulic oil enters P2 and oils oil duct, sequentially passes through two oil-outs and second check valve of the second check valve, enter hydraulic cylinder rod chamber, promote cylinder piston rod to retract.This hydraulic oil simultaneously enter P2 oil oil duct overflow valve oil-in and P1 oil oil duct balanced valve pilot port 3..
After piston rod is retracted, hydraulic oil in hydraulic cylinder rodless cavity enters P1 and oils oil duct, act on the load port of balanced valve of this oil duct 1., this balanced valve main valve plug is opened under pilot port pressure 3. and load port pressure 1. act on jointly, make its load port 1. 2. communicate with oil-out, P1 oil oil duct hydraulic oil through this balanced valve enter three way type oil return oil duct；Being applied to P1 oil the oil-in of the first check valve of oil duct, open this valve core, the hydraulic oil of oil return oil duct enters the P1 mouth of double-direction gearpump.Owing to oil cylinder oil pump capacity is more than oil inlet quantity, unnecessary oil mass enters fuel tank from fuel sucking pipe.
Piston rod meets another travel switch SQ2, and system controller accepts SQ2 signal, makes motor and hydraulic pump stall, and oil cylinder piston is in the next static, and corresponding valve open position also positions；
When system such as position sensor or controller break down, piston rod is fully retracted into being stuck, P2 oil oil duct hydraulic fluid pressure raise, when be increased to P2 oil oil duct the setting pressure of overflow valve time, the main valve plug of overflow valve is opened, the hydraulic oil of oil duct of being oiled by P2 lets out short circuit oil duct and oil return oil duct successively, returns to double-direction gearpump P1 mouth.
Claims (2)
1. an integrating electro-hydraulic adjusting means, it includes motor, double-direction gearpump, hydraulic cylinder and position sensor, it is characterized in that: double-direction gearpump is fixed on the left of integrated package, from double-direction gearpump two go out/inlet port P1 and P2, on integrated package, open to the right P1 oil oil duct and P2 oils oil duct, the two oil duct that oils all reaches the right hand edge of integrated package, two oil duct junctions that oil are formed at integrated package right hand edge, hydraulic cylinder is fixed on integrated bulk right hand edge, and two hydraulic fluid ports of hydraulic cylinder dock with two oil duct junctions that oil of integrated bulk right hand edge；
Connecing the first and second check valves on each oil duct that oils successively, wherein the first check valve has two oil-outs, two through being connected on of oil-out to oil on oil duct；What the oil-in of the second check valve was connected on double-direction gearpump side oils on oil duct, and the oil-out of the second check valve is connected on the oiling on oil duct of hydraulic cylinder side；The load port of balanced valve is connected on oiling on oil duct between the second check valve and hydraulic cylinder；
The two ends of the first pilot oil duct are the oil duct that P1 oils the pilot port of balanced valve on oil duct and P2 oils on oil duct between two check valves respectively；The two ends of the second pilot oil duct are the oil duct that P2 oils the pilot port of balanced valve on oil duct and P1 oils on oil duct between two check valves respectively；
Integrated package is opened three way type oil return oil duct, oil between oil duct at two, 2. the upper and lower oil duct junction of longitudinal oil duct of three way type oil return oil duct is coupled with the oil-out of two balanced valves, and the horizontal oil duct left end oil duct junction of three way type oil return oil duct is connected on the drain tap of double-direction gearpump；The upper orifice of fuel sucking pipe, the oil-in of two the first check valves are connected on the horizontal oil duct of three way type oil return oil duct successively；
At the lower limb fixed oil tank of integrated package, the lower limb of integrated package becomes the case lid of fuel tank, and the lower port of fuel sucking pipe inserts fuel tank；
Above-mentioned all of oil duct is river channel type；All of valve is fixed on integrated package；
Installing described position sensor in the stroke of hydraulic cylinder piston rod, the sliding end of position sensor is installed on the piston rod.
2. according to the integrating electro-hydraulic adjusting means described in claim 1, it is characterized in that: each oiling, short circuit oil duct is set between oil duct and three way type oil return oil duct, short circuit oil duct arranges pilot operated compound relief valve, what the oil-in of overflow valve was connected between the first and second check valves oils on oil duct, and the oil-out of two overflow valves is connected on the horizontal oil duct of three way type oil return oil duct.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521110128.XU CN205504145U (en) | 2015-12-29 | 2015-12-29 | Integrated type electro -hydraulic control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521110128.XU CN205504145U (en) | 2015-12-29 | 2015-12-29 | Integrated type electro -hydraulic control device |
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| CN205504145U true CN205504145U (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422971A (en) * | 2015-12-29 | 2016-03-23 | 沈阳东北电力调节技术有限公司 | Integrated electric-hydraulic adjustment device |
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2015
- 2015-12-29 CN CN201521110128.XU patent/CN205504145U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422971A (en) * | 2015-12-29 | 2016-03-23 | 沈阳东北电力调节技术有限公司 | Integrated electric-hydraulic adjustment device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENYANG NAISI CONTROL TECHNOLOGY CO.,LTD. Assignor: SHENYANG NORTHEAST ELECTRIC POWER CONTROL Co.,Ltd. Contract record no.: X2023210000146 Denomination of utility model: Integrated electro-hydraulic regulating device Granted publication date: 20160824 License type: Common License Record date: 20230927 |