CN105605038A - Loading energy recovery electro static hydraulic actuator - Google Patents
Loading energy recovery electro static hydraulic actuator Download PDFInfo
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- CN105605038A CN105605038A CN201610141422.XA CN201610141422A CN105605038A CN 105605038 A CN105605038 A CN 105605038A CN 201610141422 A CN201610141422 A CN 201610141422A CN 105605038 A CN105605038 A CN 105605038A
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- Prior art keywords
- fluid port
- hydraulic fluid
- chamber
- communicated
- actuating system
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
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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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a loading energy recovery electro static hydraulic actuator which comprises a hydraulic pump, a symmetrical hydraulic cylinder and an energy recovery mechanism. The symmetrical hydraulic cylinder comprises a shell and a symmetrical piston, and the symmetrical piston divides the shell into a first cavity and a second cavity which are not mutually communicated; the energy recovery mechanism comprises a first input end, a second input end, a first output end and a second output end, the hydraulic pump comprises an oil outlet and an oil inlet; the oil outlet is communicated with the first input end, the first output end is communicated with the first cavity, the second cavity is communicated with the second input end, and the second output end is communicated with the oil inlet; the energy recovery mechanism is used for receiving and storing oil liquid output by the first cavity or the second cavity when the loading energy recovery electro static hydraulic actuator is in a loading operating state. According to the technical scheme, the energy produced in the situation that the load applies work on the actuator is received and stored in the loading operating state, and the energy is released to drive the load in a non-loading operating state.
Description
Technical field
The application relates to electric quiet liquid actuating system field, particularly a kind of along carrying the electric quiet liquid start of energy recoverySystem.
Background technology
The quiet liquid actuating system of electricity (Electrostatichydraulicactuator, EHA) refers to by controllingThe rotating speed and direction and then change closed hydraulic loop flow and the pressure that drive the motor of hydraulic pump, drive liquidThe servo-drive system of cylinder pressure motion. EHA is the important development direction of current aviation actuator, can be used for replacingIn generation, is concentrated the electro-hydraulic servo actuator of hydraulic power source. At present in the world on multiple advanced persons' aircraft modelObtain application.
In the course of the work, there is generate heat serious, the difficult problem of dispelling the heat in the EHA of prior art, entersAnd cause EHA to cause that temperature rise is fast, temperature is high. Trace it to its cause, the first is made because of closed hydraulic loopThe heat radiation difficulty becoming; In addition, the heating of electric drive device is also an important thermal source.
In the coordinate system of speed and power formation, in the start process of EHA, load can be considered and is distributed inIn four quadrants: one, three quadrant EHA externally do work, two, the outer bound pair EHA acting of four-quadrant. ?Two, under four-quadrant operating mode, the hydraulic pump works of EHA is in hydraulic motor operating mode, and machine operation is being sent outMotor operating mode, and aircraft electrical network does not allow electric energy to feed back to onboard networks at present, this part energy must lead toCross resistance and convert heat to, further aggravated the temperature regime of EHA.
Summary of the invention
Provide hereinafter the brief overview about the application, to some aspect about the application is providedBasic comprehension. Should be appreciated that this general introduction is not the exhaustive general introduction about the application. It is notBe key or the pith that intention is determined the application, neither be intended to limit the application's scope. Its orderBe only that the form of simplifying provides some concept, using this as after a while discuss in greater detail beforeOrder.
The application's a main purpose is to provide a kind of and reclaims electric quiet liquid actuating system, purport along carrying energySolving technical problem as above.
First aspect, the application provides a kind of and has reclaimed electric quiet liquid actuating system along carrying energy, comprising: liquidPress pump, symmetrical hydraulic cylinder and energy recovery mechanism; Wherein: symmetrical hydraulic cylinder comprises housing and symmetrical piston,Housing is divided into disconnected the first chamber and the second chamber mutually by symmetrical piston; Energy recovery mechanism comprises firstInput, the second input, the first output and the second output, hydraulic pump comprises oil-out and oil-in;Oil-out is communicated with first input end, and the first output is communicated with the first chamber, the second chamber and the second inputEnd is communicated with, and the second output is communicated with oil-in; Energy recovery mechanism is for reclaiming electric quiet liquid along carrying energyActuating system, in the time of suitable year duty, receives and stores the fluid of the first chamber or the output of the second chamber.
What adopt the application reclaims electric quiet liquid actuating system along carrying energy, when it is in the suitable duty of carryingTime, energy recovery mechanism can receive and the memory load energy that acting produces to actuator, and non-suitableWhile carrying duty, discharge this part energy to drive load, improved the operating efficiency of actuator, reduceThe oppositely energy of generating of actuator, thereby reduced the caloric value of braking resistor, be conducive to reduce electricity quietThe temperature of liquid actuating system, expands the scope of application of electric quiet liquid actuating system.
Brief description of the drawings
With reference to the explanation to the embodiment of the present application below in conjunction with accompanying drawing, can understand more easily the applicationAbove and other objects, features and advantages. Parts in accompanying drawing are just in order to illustrate the application's principle.In the accompanying drawings, same or similar technical characterictic or parts will adopt same or similar Reference numeralRepresent.
Fig. 1 is the application's a suitable schematic structure of carrying electric quiet liquid actuating system one embodiment of energy recoveryBlock diagram;
Fig. 2 is the application's a suitable schematic knot that carries electric quiet another embodiment of liquid actuating system of energy recoveryComposition;
Fig. 3 is that the suitable electric quiet liquid actuating system of energy recovery that carries shown in Fig. 2 is operated in the first dutyTime, the schematic diagram of fluid flow direction;
Fig. 4 is that the suitable electric quiet liquid actuating system of energy recovery that carries shown in Fig. 2 is operated in the second dutyTime, the schematic diagram of fluid flow direction;
Fig. 5 is that the suitable electric quiet liquid actuating system of energy recovery that carries shown in Fig. 2 is operated in the 3rd dutyTime, the schematic diagram of fluid flow direction;
Fig. 6 is that the suitable electric quiet liquid actuating system of energy recovery that carries shown in Fig. 2 is operated in the 4th dutyTime, the schematic diagram of fluid flow direction.
Detailed description of the invention
The application's embodiment is described with reference to the accompanying drawings. The application's an accompanying drawing or a kind of enforcementThe element of describing in mode and feature can be with shown in one or more other accompanying drawing or embodimentsElement and feature combine. It should be noted that for purposes of clarity, accompanying drawing and explanation in omitted withExpression and the description of parts that the application has nothing to do, known to persons of ordinary skill in the art and processing.
Shown in Figure 1, be the application's showing along year energy electric quiet liquid actuating system one embodiment of recoveryMeaning property structured flowchart.
The suitable electric quiet liquid actuating system of energy recovery that carries of the present embodiment comprises hydraulic pump 110, symmetrical hydraulic cylinder120 and energy recovery mechanism 130.
Symmetrical hydraulic cylinder 120 comprises housing and symmetrical piston 121, and symmetrical piston 121 is divided into housing mutually notThe first chamber 122 and the second chamber 123 that are communicated with.
Energy recovery mechanism 130 can comprise first input end, the second input, the first output and second defeatedGo out end, hydraulic pump 110 comprises oil-out and oil-in.
The oil-out of hydraulic pump 110 is communicated with the first input end of energy recovery mechanism 130, energy-recovering machineThe first output of structure 130 is communicated with the first chamber 122, the second chamber 123 and energy recovery mechanism 130The second input is communicated with, and energy recovery mechanism 130 second outputs are communicated with the oil-in of hydraulic pump 110.
Energy recovery mechanism 130 is for reclaiming electric quiet liquid actuating system in the suitable work shape that carries along carrying energyWhen state, receive and store the fluid that the first chamber 122 or the second chamber 123 are exported.
That is to say, when the load being connected with symmetrical piston 121 is done work (along carrying to symmetrical hydraulic cylinder 120Energy reclaims electric quiet liquid actuating system in along carrying a duty) time, be positioned at the first chamber 122 or theThe fluid of two chambers 123 can enter in energy recovery mechanism 130, and is stored by energy recovery mechanism 130,Improve the operating efficiency of actuator, reduced the oppositely energy of generating of actuator, thereby reduced brakingThe caloric value of resistance, is conducive to reduce the temperature of electric quiet liquid actuator, expands the use of electric quiet liquid actuatorScope.
In addition, it should be noted that, in the each embodiment of the application, the oil-out of hydraulic pump and oil-in are alsoBe not used in and illustrate that the function of the two is only fuel-displaced or oil-feed, and be intended in the time describing the application's scheme,The two is distinguished. In fact, the oil-out of the hydraulic pump in the each embodiment of the application can be for rowGo out pump inner fluid, also can make extraneous fluid enter hydraulic pump inside through oil-out. Similarly, hydraulic pressureThe oil-in of pump can be for making extraneous fluid enter hydraulic pump inside through oil-in, also can be for willPump inner fluid is expelled to outside.
Shown in Figure 2, for the application's the suitable energy that carries reclaims electric quiet another embodiment's of liquid actuating systemSchematic diagram.
Similar with the embodiment shown in Fig. 1, embodiment illustrated in fig. 2 reclaims electric quiet liquid start along carrying energySystem comprises hydraulic pump 210, symmetrical hydraulic cylinder 220 and energy recovery mechanism 230 equally.
Different from the embodiment shown in Fig. 1, the present embodiment has further described this and has reclaimed along carrying energyThe concrete structure of each parts in the quiet liquid actuating system of electricity.
Particularly, the energy recovery mechanism 230 in the present embodiment comprise sensor (not shown),Controller (not shown), energy recovery mechanism and the first accumulator 231. Wherein, sensor is usedIn the velocity attitude that gathers symmetrical piston stressed be subject to force direction and symmetrical piston. Controller for based onDetermined along the duty of carrying the electric quiet liquid actuating system of energy recovery by force direction and velocity attitude, carry suitableEnergy reclaims electric quiet liquid actuating system in the time of suitable year duty, controls energy recovery mechanism 230 and receivesThe fluid that the first chamber 222 or the second chamber 223 are exported, and fluid is stored into the first accumulator 231In.
In addition, controller is also for reclaiming electric quiet liquid actuating system in the non-suitable work shape that carries along carrying energyWhen state, control energy recovery mechanism 230 and receive the fluid of storage in the first accumulator 231 and hold firstIn energy device 231, the fluid of storage exports the first chamber 222 or the second chamber 223 to. Alternatively, firstAccumulator 231 can be high pressure accumulator, for example, in the first accumulator 231, can have high-pressure gasbagOr similar techniques, has higher oil pressure so that enter the fluid of the first accumulator 231, thereby realizeThe potential energy storage of fluid.
In some optional implementations, energy recovery mechanism can comprise the first magnetic valve 232 and secondMagnetic valve 233.
The first magnetic valve 232 and the second magnetic valve 233 can be two-position four-way solenoid valve.
The first magnetic valve 232 can comprise the first control end CT1, the first hydraulic fluid port A1, the second hydraulic fluid port B1,The 3rd hydraulic fluid port C1 and the 4th hydraulic fluid port D1.
The control signal that the first control end CT1 exports for receiving controller, and based on control signal controlThe connection of making between the first hydraulic fluid port A1, the second hydraulic fluid port B1, the 3rd hydraulic fluid port C1 and the 4th hydraulic fluid port D1 is closedSystem. Wherein, the first hydraulic fluid port A1 is communicated with the first input end of energy recovery mechanism 230, the second hydraulic fluid portB1 is communicated with the first output of energy recovery mechanism 230.
Because the first input end of energy recovery mechanism 230 is communicated with the oil-out of hydraulic pump 210, therebyThe first hydraulic fluid port A1 of the first magnetic valve 232 is also communicated with the oil-out of hydraulic pump 210.
Similarly, the second magnetic valve 233 comprises the second control end CT2, the 5th hydraulic fluid port A2, the 6th oilMouth B2, the 7th hydraulic fluid port C2 and the 8th hydraulic fluid port D2. The second control end CT2 is used for receiving controller outputControl signal, and based on control signal control the 5th hydraulic fluid port A2, the 6th hydraulic fluid port B2, the 7th hydraulic fluid portConnected relation between C2 and the 8th hydraulic fluid port D2. Of the 5th hydraulic fluid port A2 and energy recovery mechanism 230Two outputs are communicated with, and the 6th hydraulic fluid port B2 is communicated with the second input of energy recovery mechanism 230.
In addition, symmetrical piston 221 comprises cock body 2211, the first post portion 2212 and the second post portion 2213.
Wherein, housing is divided into disconnected the first chamber 222 and the second chamber 223 mutually by cock body 2211.
The first post portion 2212 and the second post portion 2213 are about cock body 2211 symmetries, and the first post portion 2212 HesOne end and the cock body of the second post portion 2213 are connected.
The other end of the second post portion 2213 is connected with load, for based on the first chamber 222 and the second chamberHydraulic pressure difference between 223 promotes load movement.
Alternatively, the suitable electric quiet liquid actuating system of energy recovery that carries of the present embodiment can also comprise servomotor240, the first check valve 250, the second check valve 260 and the second accumulator 270.
Wherein, servomotor 240 is connected with hydraulic pump 210, for driving hydraulic pump 210 dextrorotationsTurn or be rotated counterclockwise. The first check valve 250 is connected to going out of the second accumulator 270 and hydraulic pump 210Between hydraulic fluid port, for the fluid that makes the second accumulator 270 the oil-out pressure of hydraulic pump 210 lower thanWhen the second accumulator 270 pressure, pump the mobile fluid that supplements of hydraulic fluid port to hydraulic pressure 210, avoid cavitation erosion.
The second check valve 260 is connected between the second accumulator 270 and the oil-in of hydraulic pump 210, usesFluid in making the second accumulator 270 at the inlet pressure to hydraulic pump 210 lower than the second accumulatorWhen 270 pressure, flow to hydraulic pump oil-in, avoid cavitation erosion.
Hydraulic pump 210 also comprises drain tap, and the second accumulator 270 is connected with drain tap, lets out for receivingThe fluid that hydraulic fluid port is discharged.
The second accumulator 270 also with the 3rd hydraulic fluid port C1 and second magnetic valve 233 of the first magnetic valve 232The 7th hydraulic fluid port C2 connect, for making the fluid of the second accumulator 270 through the first magnetic valve or secondMagnetic valve flows into the first chamber or the second chamber, or, discharge for receiving the first chamber or the second chamberFluid.
Below, by reclaiming electric quiet liquid actuating system as example taking the suitable energy that carries shown in Fig. 2, further illustrateHow the application utilizes energy recovery mechanism 230 to carry out energy along carrying the electric quiet liquid actuating system of energy recoveryThe recovery and reuse of amount.
As shown in Figure 3, being operated in along the work of carrying along carrying the electric quiet liquid actuating system of energy recovery for the applicationWhen the first duty of state, the schematic diagram of fluid flow direction.
Under the first duty, stressed is subject to force direction to symmetrical piston is along symmetrical piston and points toThe direction (as the direction of arrow of F in Fig. 3) of two chambers 223, the velocity attitude of symmetrical piston is along rightClaim piston and point to the direction (as the direction of arrow of v in Fig. 3) of the first chamber 222.
Under the first duty, controller is to the second control end CT2 output control of the second magnetic valve 233Signal processed so that the 5th hydraulic fluid port A2 be communicated with the 8th hydraulic fluid port D2, the 6th hydraulic fluid port B2 and the 7th hydraulic fluid port C2Be communicated with. Meanwhile, controller also to the first control end CT1 output control signal of the first magnetic valve 232 withThe first hydraulic fluid port A1 is communicated with the second hydraulic fluid port B1, and the 3rd hydraulic fluid port C1 and the 4th hydraulic fluid port D1 disconnect.
That is to say, under the first duty, the load being connected with the second post portion 2213 promotes hydraulic pressureThe symmetrical piston of cylinder 220, makes fluid discharge from the first chamber 222 of hydraulic cylinder 220, through firstThe second hydraulic fluid port B1 of magnetic valve 232 and the first hydraulic fluid port A1, enter the mouth of going on a tour of hydraulic pump 210, andDischarge from the oil-in of hydraulic pump 210, then through the 5th hydraulic fluid port A2 and the 8th oil of the second magnetic valve 233Mouth D2, enters the first accumulator 231, realizes the recovery of energy. In addition, in another loop, oilLiquid is discharged from the second accumulator 270, through the 7th hydraulic fluid port C2 and the 6th hydraulic fluid port of the second magnetic valve 233B2 enters the second chamber 223 of symmetrical hydraulic cylinder 220.
As shown in Figure 4, being operated in along the work of carrying along carrying the electric quiet liquid actuating system of energy recovery for the applicationWhen the second duty of state, the schematic diagram of fluid flow direction.
Under the second duty, stressed is subject to force direction to symmetrical piston is along symmetrical piston and points toThe direction (as the direction of arrow of F in Fig. 4) of one chamber 222, the velocity attitude of symmetrical piston is along rightClaim piston and point to the direction (as the direction of arrow of v in Fig. 4) of the second chamber 223.
Under the second duty, controller is to the second control end CT2 output of the second magnetic valve 233Control signal so that the 5th hydraulic fluid port A2 be communicated with the 6th hydraulic fluid port B2, the 7th hydraulic fluid port C2 and the 8th hydraulic fluid portD2 disconnects. Meanwhile, controller is also controlled letter to the first control end CT1 output of the first magnetic valve 232Number so that the first hydraulic fluid port A1 is communicated with the 4th hydraulic fluid port D1, the second hydraulic fluid port B1 is communicated with the 3rd hydraulic fluid port C1.
That is to say, under the second duty, the load being connected with the second post portion 2213 promotes hydraulic pressureThe symmetrical piston of cylinder 220, makes fluid discharge from the second chamber 223 of hydraulic cylinder 220, through secondThe 6th hydraulic fluid port B2 of magnetic valve 233 and the 5th hydraulic fluid port A2, enter the oil-in of hydraulic pump 210. EnterThe fluid and the common hydraulic pump 210 that drives of servomotor 240 that enter hydraulic pump 210 oil-ins rotate, and makeThe oil-out of hydraulic pump 210 is discharged high-voltage oil liquid, through the first hydraulic fluid port A1 of the first magnetic valve 232 and theFour hydraulic fluid port D1, enter in the first accumulator 231, realize stored energy. In addition an other loop,In, fluid is discharged from the second accumulator 270, through the 3rd hydraulic fluid port C1 and of the first magnetic valve 232Two hydraulic fluid port B1 enter the first chamber 222 of symmetrical hydraulic cylinder 220.
As shown in Figure 5, for the application's the suitable electric quiet liquid actuating system of energy recovery that carries is operated in work in non-yearWhen the 3rd duty of state, the schematic diagram of fluid flow direction.
Under the 3rd duty, stressed is subject to force direction to symmetrical piston is along symmetrical piston and points toThe direction (as the direction of arrow of F in Fig. 5) of two chambers 223, the velocity attitude of symmetrical piston is along rightClaim piston and point to the direction (as the direction of arrow of v in Fig. 4) of the second chamber 223.
Under the 3rd duty, controller is to the second control end CT2 output control of the second magnetic valve 233Signal processed so that the 5th hydraulic fluid port A2 be communicated with the 8th hydraulic fluid port D2, the 6th hydraulic fluid port B2 and the 7th hydraulic fluid port C2Be communicated with. Meanwhile, controller also to the first control end CT1 output control signal of the first magnetic valve 232 withThe first hydraulic fluid port A1 is communicated with the second hydraulic fluid port B1, and the 3rd hydraulic fluid port C1 and the 4th hydraulic fluid port D1 disconnect.
That is to say, under the 3rd duty, symmetrical hydraulic cylinder 220 overcomes extraneous load and externally does work,Controller control the second magnetic valve 223 is worked, and makes the 5th hydraulic fluid port A2 and the 8th hydraulic fluid port of the second magnetic valveD2 connects, and the 6th hydraulic fluid port B2 is connected with the 7th hydraulic fluid port C2. Fluid now will be according to shown in Fig. 5Direction flow, load force promotes symmetrical hydraulic cylinder 220, makes fluid from the of symmetrical hydraulic cylinder 220Two chambers 223, through the 6th hydraulic fluid port B2 and the 7th hydraulic fluid port C2 of the second magnetic valve 233, enter secondAccumulator 270. Meanwhile, fluid in the first accumulator 231 is discharged, through the second magnetic valve 233The 8th hydraulic fluid port D2 and the 5th hydraulic fluid port A2 enter the oil-in of hydraulic pump 210, are total to servomotor 240With driving hydraulic pump 210 to rotate, make fluid discharge fluid from the oil-out of hydraulic pump 210, through theThe first hydraulic fluid port A1 of one magnetic valve 232 and the second hydraulic fluid port B1 enter the first chamber of symmetrical hydraulic cylinder 220Chamber 222, thus drive symmetrical hydraulic cylinder 220 to move, realize the utilization of energy in the first accumulator 231.
As shown in Figure 6, for the application's the suitable electric quiet liquid actuating system of energy recovery that carries is operated in work in non-yearWhen the 4th duty of state, the schematic diagram of fluid flow direction.
Under the 4th duty, stressed is subject to force direction to symmetrical piston 220 is also to refer to along symmetrical pistonTo the direction (as the direction of arrow of F in Fig. 6) of the first chamber 222, the speed side of symmetrical piston 220To for along symmetrical piston and point to the direction (as the direction of arrow of v in Fig. 4) of the first chamber 222.
Under the 4th duty, controller is to the second control end CT2 output control of the second magnetic valve 233Signal processed so that the 5th hydraulic fluid port A2 be communicated with the 6th hydraulic fluid port B2, the 7th hydraulic fluid port C2 and the 8th hydraulic fluid port D2Disconnect. Meanwhile, controller to the first control end CT1 output control signal of the first magnetic valve 232 withThe first hydraulic fluid port A1 is communicated with the 4th hydraulic fluid port D1, and the second hydraulic fluid port B1 is communicated with the 3rd hydraulic fluid port C1.
That is to say, under the 4th duty, symmetrical hydraulic cylinder grams 220 take extraneous load force promote rightClaim that hydraulic cylinder 220 externally does work, now, controller control the first magnetic valve 232 is worked, and makes the first electricityThe first hydraulic fluid port A1 of magnet valve 232 is connected with the 4th hydraulic fluid port D1, the second hydraulic fluid port B1 and the 3rd hydraulic fluid port C1Connect, fluid now will flow according to the direction shown in Fig. 6, and load force promotes symmetrical hydraulic cylinder220, discharge from the first chamber 222 of hydraulic cylinder 220, through the second hydraulic fluid port B1 of the first magnetic valve 232Mouth and the 3rd hydraulic fluid port C1, enter the second accumulator 270. Meanwhile, the fluid in the first accumulator 231Discharge, enter hydraulic pump 210 through the 4th hydraulic fluid port D1 and the first hydraulic fluid port A1 of the first magnetic valve 232Oil-out, rotate the oil-in of hydraulic pump 210 with the common hydraulic pump 210 that drives of servomotor 240Discharge high-voltage oil liquid, enter symmetry through the 5th hydraulic fluid port A2 and the 6th hydraulic fluid port B2 of the second magnetic valve 233The second chamber 223 of hydraulic cylinder 220, drives symmetrical hydraulic cylinder 220 to move, and has realized the second accumulatorThe utilization of energy in 231.
Can find out from above description, what adopt the application reclaims electric quiet liquid actuating system along carrying energy,When it is in along carrying when duty, energy recovery mechanism can receive and memory load is done work to actuatorThe energy producing, and discharge this part energy to drive load in the time of non-suitable year duty, improve workThe operating efficiency of moving device, has reduced the oppositely energy of generating of actuator, thereby has reduced sending out of braking resistorHeat, is conducive to reduce the temperature of electric quiet liquid actuator, expands the scope of application of electric quiet liquid actuator.
More than describing is only the application's preferred embodiment and the explanation to institute's application technology principle. AbilityField technique personnel should be appreciated that invention scope related in the application, are not limited to above-mentioned technical charactericticThe technical scheme that forms of particular combinations, also should be encompassed in the situation that does not depart from described inventive concept simultaneouslyUnder, be combined and other technical scheme of forming by above-mentioned technical characterictic or its equivalent feature. ExampleThe technical characterictic as disclosed in above-mentioned feature and the application (but being not limited to) with similar functions carries out mutuallyThe technical scheme of replacing mutually and form.
Claims (10)
1. reclaim an electric quiet liquid actuating system along carrying energy, it is characterized in that, comprise hydraulic pump, rightClaim hydraulic cylinder and energy recovery mechanism;
Wherein:
Described symmetrical hydraulic cylinder comprises housing and symmetrical piston, and described symmetrical piston is divided into described housing mutually notThe first chamber and the second chamber that are communicated with;
Described energy recovery mechanism comprises first input end, the second input, the first output and the second outputEnd, described hydraulic pump comprises oil-out and oil-in;
Described oil-out is communicated with described first input end, and described the first output is communicated with described the first chamber,Described the second chamber is communicated with described the second input, and described the second output is communicated with described oil-in;
Described energy recovery mechanism is for reclaiming electric quiet liquid actuating system in the suitable work of carrying described along carrying energyWhile making state, receive and store the fluid of described the first chamber or described the second chamber output.
2. the suitable energy that carries according to claim 1 reclaims an electric quiet liquid actuating system, it is characterized in that,Described energy recovery mechanism comprises sensor, controller, energy recovery mechanism and the first accumulator;
Wherein:
For gathering described symmetrical piston, stressed be subject to force direction and described symmetrical piston to described sensorVelocity attitude;
Described controller is for determining the described suitable energy that carries based on described force direction and the described velocity attitude of being subject toReclaim the duty of electric quiet liquid actuating system, described along carry energy reclaim electric quiet liquid actuating system inWhen suitable year duty, control described energy recovery mechanism and receive described the first chamber or described the second chamberThe fluid of output, and described fluid is stored in described the first accumulator.
3. according to claim 2 along carrying the electric quiet liquid actuating system of energy recovery, it is characterized in that:
Described controller is also for reclaiming electric quiet liquid actuating system in the non-suitable work of carrying described along carrying energyWhile making state, control that described energy recovery mechanism receives the fluid stored in described the first accumulator and by instituteState the fluid of storing in the first accumulator and export described the first chamber or described the second chamber to.
4. according to claim 3 along carrying the electric quiet liquid actuating system of energy recovery, it is characterized in that:
Described energy recovery mechanism comprises the first magnetic valve and the second magnetic valve;
Described the first magnetic valve and described the second magnetic valve are two-position four-way solenoid valve;
Described the first magnetic valve comprises the first control end, the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port andFour hydraulic fluid ports, the control signal that described the first control end is exported for receiving described controller, and based on describedConnection described in control signal control between the first hydraulic fluid port, the second hydraulic fluid port, the 3rd hydraulic fluid port and the 4th hydraulic fluid port is closedSystem, wherein, described the first hydraulic fluid port is communicated with described first input end, described the second hydraulic fluid port and described firstOutput is communicated with;
Described the second magnetic valve comprises the second control end, the 5th hydraulic fluid port, the 6th hydraulic fluid port, the 7th hydraulic fluid port andEight hydraulic fluid ports, the control signal that described the second control end is exported for receiving described controller, and based on describedConnection described in control signal control between the 5th hydraulic fluid port, the 6th hydraulic fluid port, the 7th hydraulic fluid port and the 8th hydraulic fluid port is closedSystem, wherein, described the 5th hydraulic fluid port is communicated with described the second output, described the 6th hydraulic fluid port and described secondInput is communicated with.
5. according to claim 4 along carrying the electric quiet liquid actuating system of energy recovery, it is characterized in that:
Described symmetrical piston comprises cock body, the first post portion and the second post portion;
Wherein, described housing is divided into disconnected the first chamber and the second chamber mutually by described cock body;
Described the first post portion and described the second post portion be about described cock body symmetry, and described the first post portion and described inOne end of the second post portion and described cock body are connected;
The other end of described the second post portion is connected with load, for based on described the first chamber and described the second chamberHydraulic pressure difference between chamber promotes described load movement.
6. according to claim 5 along carrying the electric quiet liquid actuating system of energy recovery, it is characterized in that:
The described suitable duty of carrying comprises the first duty;
Under described the first duty, stressed is subject to force direction to described symmetrical piston is along described symmetryPiston also points to the direction of described the second chamber, and the velocity attitude of described symmetrical piston is along described symmetrical livingFill in and point to the direction of described the first chamber;
Described controller is further used for reclaiming electric quiet liquid actuating system in described the described along carrying energyWhen one duty, export control signal so that the described the 5th to the second control end of described the second magnetic valveHydraulic fluid port is communicated with described the 8th hydraulic fluid port, and described the 6th hydraulic fluid port is communicated with described the 7th hydraulic fluid port;
Described controller is also for reclaiming electric quiet liquid actuating system in described the first work described along carrying energyWhile making state, export control signal so that described the first hydraulic fluid port to the first control end of described the first magnetic valveBe communicated with described the second hydraulic fluid port, described the 3rd hydraulic fluid port and described the 4th hydraulic fluid port disconnect.
7. according to claim 5 along carrying the electric quiet liquid actuating system of energy recovery, it is characterized in that:
The described suitable duty of carrying comprises the second duty;
Under described the second duty, stressed is subject to force direction to described symmetrical piston is along described symmetryPiston also points to the direction of described the first chamber, and the velocity attitude of described symmetrical piston is along described symmetrical livingFill in and point to the direction of described the second chamber;
Described controller is further used for reclaiming electric quiet liquid actuating system in described the described along carrying energyWhen two duties, export control signal so that the described the 5th to the second control end of described the second magnetic valveHydraulic fluid port is communicated with described the 6th hydraulic fluid port, and described the 7th hydraulic fluid port and described the 8th hydraulic fluid port disconnect;
Described controller is also for reclaiming electric quiet liquid actuating system in described the second work described along carrying energyWhile making state, export control signal so that described the first hydraulic fluid port to the first control end of described the first magnetic valveBe communicated with described the 4th hydraulic fluid port, described the second hydraulic fluid port is communicated with described the 3rd hydraulic fluid port.
8. according to claim 5 along carrying the electric quiet liquid actuating system of energy recovery, it is characterized in that:
The described non-suitable duty of carrying comprises the 3rd duty;
Under described the 3rd duty, stressed is subject to force direction to described symmetrical piston is along described symmetryPiston also points to the direction of described the second chamber, and the velocity attitude of described symmetrical piston is along described symmetrical livingFill in and point to the direction of described the second chamber;
Described controller is further used for reclaiming electric quiet liquid actuating system in described the described along carrying energyWhen three duties, export control signal so that the described the 5th to the second control end of described the second magnetic valveHydraulic fluid port is communicated with described the 8th hydraulic fluid port, and described the 6th hydraulic fluid port is communicated with described the 7th hydraulic fluid port;
Described controller is also for reclaiming electric quiet liquid actuating system in described the 3rd work described along carrying energyWhile making state, export control signal so that described the first hydraulic fluid port to the first control end of described the first magnetic valveBe communicated with described the second hydraulic fluid port, described the 3rd hydraulic fluid port and described the 4th hydraulic fluid port disconnect.
9. according to claim 5 along carrying the electric quiet liquid actuating system of energy recovery, it is characterized in that:
The described non-suitable duty of carrying comprises the 4th duty;
Under described the 4th duty, stressed is subject to force direction to described symmetrical piston is along described symmetryPiston also points to the direction of described the first chamber, and the velocity attitude of described symmetrical piston is along described symmetrical livingFill in and point to the direction of described the first chamber;
Described controller is further used for reclaiming electric quiet liquid actuating system in described the described along carrying energyWhen four duties, export control signal so that the described the 5th to the second control end of described the second magnetic valveHydraulic fluid port is communicated with described the 6th hydraulic fluid port, and described the 7th hydraulic fluid port and described the 8th hydraulic fluid port disconnect;
Described controller is also for reclaiming electric quiet liquid actuating system in described the 4th work described along carrying energyWhile making state, export control signal so that described the first hydraulic fluid port to the first control end of described the first magnetic valveBe communicated with described the 4th hydraulic fluid port, described the second hydraulic fluid port is communicated with described the 3rd hydraulic fluid port.
10. reclaim an electric quiet liquid actuating system according to the suitable energy that carries described in claim 5-9 any one,It is characterized in that, also comprise servomotor, the first check valve, the second check valve and the second accumulator;
Wherein:
Described servomotor is connected with described hydraulic pump, for driving described hydraulic pump to turn clockwise or contraryHour hands rotation;
Described the first check valve is connected between described the second accumulator and the oil-out of described hydraulic pump, usesFluid in making described the second accumulator flows to the oil-out of described hydraulic pump;
Described the second check valve is connected between described the second accumulator and the oil-in of described hydraulic pump, usesFluid in making described the second accumulator flows to the oil-in of described hydraulic pump;
Described hydraulic pump also comprises drain tap, and described the second accumulator is connected with described drain tap, for connecingReceive the fluid that described drain tap is discharged;
Described the second accumulator also with described the 3rd hydraulic fluid port and described second electricity of described the first magnetic valveDescribed the 7th hydraulic fluid port of magnet valve connects, for making the fluid of described the second accumulator through described the first electromagnetismValve or described the second magnetic valve flow into described the first chamber or described the second chamber, or, for receivingState the fluid that the first chamber or described the second chamber are discharged.
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| CN201610141422.XA CN105605038B (en) | 2016-03-12 | 2016-03-12 | A kind of suitable load energy regenerating electricity hydrostatic actuating system |
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| CN201610141422.XA CN105605038B (en) | 2016-03-12 | 2016-03-12 | A kind of suitable load energy regenerating electricity hydrostatic actuating system |
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| CN105605038B (en) | 2018-01-16 |
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