CN202228459U - Electro-hydraulic servo integrated device - Google Patents
Electro-hydraulic servo integrated device Download PDFInfo
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- CN202228459U CN202228459U CN2011203756690U CN201120375669U CN202228459U CN 202228459 U CN202228459 U CN 202228459U CN 2011203756690 U CN2011203756690 U CN 2011203756690U CN 201120375669 U CN201120375669 U CN 201120375669U CN 202228459 U CN202228459 U CN 202228459U
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Abstract
The utility model discloses an electro-hydraulic servo integrated device, which comprises an encloser, a housing, a servo valve, a throttling adjusting valve, an oil supplying hydraulic control check valve, an output control oil unloading valve, an unloading valve control electromagnetic valve, an unloading control oil check valve, a pressure measuring device, pressure measuring joints of the pressure measuring device, and oil circuit interfaces, wherein the housing is provided with six mounting surfaces; the servo valve, the throttling adjusting valve, the output control oil unloading valve and the unloading valve control electromagnetic valve are arranged on a top surface mounting surface; the oil supplying hydraulic control check valve and the unloading control oil check valve are arranged on a back surface mounting surface; the pressure measuring joints of the pressure measuring device are arranged on a left side surface mounting surface; the oil circuit interfaces are arranged on a front surface mounting surface and a bottom surface mounting surface; and a right side mounting surface is a flat surface. The electro-hydraulic servo integrated device has high generality, can control a linear motion hydraulic actuating mechanism rapidly, steadily and accurately, and can rapidly drain oil and quickly control a valve or the linear motion hydraulic actuating mechanism to be restored to a closed state or an initial position under emergency circumstances or the circumstances that an oil source disappears.
Description
Technical field
The utility model belongs to technical field of hydraulic, particularly relates to a kind of electro-hydraulic servo integrated device.
Background technique
At present; Be directed to the control of straight line motion hydraulic actuator, the integrated package product major part of domestic production is the hydraulic control device that each hydraulic pressure factory designs temporarily and assembles according to s own situation, and the function versatility of its integrated package is little; Coverage is little; System accuracy is not high, can not keep actuator's (oil hydraulic cylinder isoline motion) position, can't carry out large-scale production.
The model utility content
The purpose of the utility model is exactly the deficiency to above-mentioned existing technology, and a kind of electro-hydraulic servo integrated device is provided, and has that versatility height, environmental suitability are strong, reliable and stable, precision and safe characteristics.
The purpose of the utility model realizes through following technical proposals:
A kind of electro-hydraulic servo integrated device; Comprise case, housing, servovalve, throttling adjustment valve, fuel feeding Pilot operated check valve, the oily feather valve of control output, feather valve control electromagnetic valve, Unloading Control oil one-way valve, pressure-detecting device and pressure measuring tie-in thereof, oil circuit interface; Said housing has six attachment faces, and servovalve, throttling adjustment valve, the oily feather valve of control output, feather valve control electromagnetic valve are arranged on the end face attachment face; Fuel feeding Pilot operated check valve and Unloading Control oil one-way valve are arranged on the attachment face of the back side; The pressure measuring tie-in of pressure-detecting device is arranged on the left surface attachment face; On front attachment face and the bottom surface attachment face oil circuit interface is set; The right side attachment face is a plane.
Further, said case is installed on the end face attachment face, offers test port on it.
Further, said servovalve is the servovalve with blocking function.
Further, said servovalve is the servovalve with Field bus function.
Further, be fixed with throttle orifice on the said throttling adjustment valve.
Further, the oil circuit interface is oily interface of output control and the oily oil return interface of output control on the attachment face of said front, and the oil circuit interface is the oily interface of control, the oily oil return interface of control and fuel feeding interface on the attachment face of bottom surface.
Further, the oily interface of said control is connected with stop valve with the fuel feeding interface.
This electro-hydraulic servo integrated device can carry out locking position to the straight line motion hydraulic actuator when servovalve excision work.In the not work timing pressing pressure oil supply of straight line motion hydraulic actuator, reduce the load and the power of whole hydraulic system, reduce the oil pressure loss, the stable system oil pressure.Increase pressure-detecting device (pressure measurement and air venting) at oil supply loop in the output loop with controlling, realized the function of Online Monitoring Control oil condition and on-line replacing equipment.In the time of need carrying out Online Monitoring Control oil pressure state; Through adding hose pressure gauge is connected with pressure measuring tie-in; Pressure gauge and flexible pipe are fixed the screw thread of back hose and pressure measuring tie-in; Thimble in the flexible pipe is opened sealing awl in the pressure measuring tie-in, and the pressure oil in the device is delivered to external pressure gauge, realizes the on-line monitoring of control-oil pressure state through pressure gauge.In the time of need carrying out online equipment replacement; The fuel feeding interface and the stop valve of the oily interface of control are closed; Gland thimble through pressure-detecting device will install interior overbottom pressure unloading; Element or the equipment that to change are then changed, thereby have realized the function of Online Monitoring Control oil condition and on-line replacing equipment.
In order to solve the technical problem that conventional integrated package exists; The utility model has structurally been considered measures such as concentrated interface, unified equipment attachment face, the loss of fixed orifice limited flow, and the versatility, environmental suitability, efficient etc. of this device are improved a lot.Characteristics according to the straight line motion hydraulic actuator have designed the hydraulic control principle that adaptability is strong, control accuracy is high, safe and reliable.
Said housing is realized the connection of each valve element oil duct, has hydraulic fluid port and the valve class mounting hole corresponding with each solenoid valve, can accurately regulate hydraulic fluid flow rate and quick draining.In this electro-hydraulic servo integrated device, replaced common solenoid directional control valve with servovalve, having solved is not only the effect that oil circuit is commutated, but also has played Flow-rate adjustment control effect more accurately.Because; Servovalve has the effect of switching-over and flow control valve simultaneously; Travel feedback through actuator self can play the effect of Accurate Position Control and velocity of displacement control, selects suitable servovalve model can change the scope and the control accuracy of flow control, the accurate control of realization various device; The equipment that the electro-hydraulic servo integrated device is selected for use can adapt to the demand for control of the general straight line motion hydraulic actuator of steam turbine equipment, and adaptability is stronger; Increased the oily feather valve of control output; It is high that oily feather valve action sensitivity is exported in the control of selecting for use, and good airproof performance can be realized the break-make of oil circuit fast; It is used for control system, makes the straight line motion hydraulic actuator under emergency, can realize quickly recovering to closed condition or initial position; In addition, when this electro-hydraulic servo integrated device is installed in the oil-way system, the pressure of system is not had influence, system pressure reaches zero loss, and should zero loss value can detect through the adjusting that valve and fuel feeding Pilot operated check valve are adjusted in throttling.
The oil circuit cleaning attachment is the necessaries that the integrated device internal duct is cleared up.The integrated device housing is the carrier of system oil-way; Asphalt channel in the integrated device housing at first need use hydraulic oil to clean; To remove the impurity in the asphalt channel, clean thoroughly in order to make asphalt channel, all be furnished with corresponding oil circuit cleaning attachment to the oil port of each valve and promptly wash plate; Make the hydraulic oil under the high pressure conditions in housing, to circulate; And in internal pipeline, forming the high-speed liquid bundle, the high-speed liquid bundle forms surging turbulent flow at the bend place, asphalt channel is formed effective flushing action.After oil circuit is cleaned completion; Each control valve is installed on the integrated package housing; Make control valve under the hydraulic oil environment of cleaning, carry out work; Guarantee the stability and the reliability of control,, more can improve the operating life and the control accuracy of hydrovalve greatly if in the oil supply loop of integrated device, increase accurate oil filter.
Said electro-hydraulic servo integrated device is when proper functioning, and only servovalve receives the servo instruction of controller, realizes the regulating action to the straight line motion hydraulic actuator.The electro-hydraulic servo integrated device in the closed loop control system of whole straight line motion hydraulic actuator, plays a part artery and maincenter is refreshing smart; Controller is gathered the location parameter of straight line motion hydraulic actuator; Position through the straight line motion hydraulic actuator that relatively needs is regulated output accordingly; Drive the straight line motion hydraulic actuator through the electro-hydraulic servo integrated device and carry out corresponding action, controller was kept current servo instruction when the straight line motion hydraulic actuator position that controller is collected was identical with the straight line motion hydraulic actuator position that needs.Reach the effect of straight line motion hydraulic actuator settling position.In case of emergency electro-hydraulic servo integrated device reception servo instruction and unloading command are controlled the straight line motion hydraulic actuator rapidly and are replied original state or home, reach the effect of protection straight line motion hydraulic actuator institute control apparatus.
The installation dimension of this each control valve of device; Have the interface that meets the ISO4401 relevant criterion fully, can change the control valve and the servovalve of corresponding function as required, realize the intellectuality and the digitizing of the control of straight line motion hydraulic actuator; Can adopt servovalve and control valve to realize Fieldbus Control to the control of each valve with Field bus function; Improve the intelligent network level of controlled device, realize the information sharing of The whole control, realize disperseing the modernization of Fieldbus Control.
The beneficial effect of the utility model is: versatility is high, environment is practical; Whole integrated device compact structure, easy for installation; Be convenient in various straight line motion hydraulic actuators, carry out integrated embedding maintenance and the convenient on-line maintenance of changing that helps system more; Can carry out fast the straight line motion hydraulic actuator, stable and accurate control, and draining fast under urgency or the oil sources situation about disappearing, rapid control valve or straight line motion hydraulic actuator return to closed condition or initial position.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the schematic perspective view that the utility model removes case;
Fig. 3 is another schematic perspective view that the utility model removes case;
Fig. 4 is the structural representation that the utility model uses the flushing plate.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.
Extremely shown in Figure 3 like Fig. 1; A kind of electro-hydraulic servo integrated device; Comprise the oily feather valve of case 13, housing 1, servovalve 2, throttling adjustment valve 3, fuel feeding Pilot operated check valve 4, control output 5, feather valve control electromagnetic valve 6, Unloading Control oil one-way valve 7, pressure-detecting device and pressure measuring tie-in 8 thereof, oil circuit interface; Said housing 1 has six attachment faces, and the oily feather valve of servovalve 2, throttling adjustment valve 3, control output 5, feather valve control electromagnetic valve 6 are arranged on the end face attachment face; Fuel feeding Pilot operated check valve 4 is arranged on the attachment face of the back side with Unloading Control oil one-way valve 7; The pressure measuring tie-in 8 of pressure-detecting device is arranged on the left surface attachment face; On front attachment face and the bottom surface attachment face oil circuit interface is set; Right side attachment face 101 is a plane.
Said case 13 is installed on the end face attachment face, offers test port 14 on it.The servovalve of said servovalve 2 for having the servovalve of blocking function or having the Field bus function.Be fixed with throttle orifice on the said throttling adjustment valve 3.The oil circuit interface is oily interface 10 of output control and the oily oil return interface 9 of output control on the attachment face of front, and the oil circuit interface is the oily interface of control 11, the oily oil return interface 12 of control and fuel feeding interface 13 on the attachment face of bottom surface.The oily interface 11 of said control is connected with stop valve with fuel feeding interface 13.
Above-mentioned all control valve installation dimensions all meet the ISO4401 standard, can change the control valve of corresponding function control mode, realize protecting the function of different usage requirements such as position, safety location.Servovalve 2 is core components that whole electro-hydraulic servo integrated device realizes the straight line motion hydraulic actuator is carried out linearly adjust control, and it is made up of control valve body, spool, valve pocket, linear servo-actuator (permanent magnetic torque motor), spool feedback means and electronic amplifier equipment.After the input coil of linear servo-actuator fed the control electric current, the permanent magnetic torque motor operations when motor drive spool moves right, made the right valve port communicate with fuel feeding, and valve port oil-feed flow in the right increases; Left side valve port is communicated with oil return, and valve port oil return flow in the left side increases.The displacement amount of spool is directly proportional with the input current of torque motor, and the motor force and the spring force that act on the spool balance each other, and therefore the electric current of torque motor is directly proportional with the displacement of spool under state of equilibrium.Measurement through valve element position induction type electronic sensor; Valve element position is fed back in the electronic amplifier equipment; Make the spool instruction of controller input reach consistent with the spool feedback of servovalve; Reach the effect of the oily flow of accurate control straight line motion hydraulic actuator output control, the straight line motion hydraulic actuator is accurately located.
As shown in Figure 1.Said electro-hydraulic servo integrated device outside does not have other easy contact arrangements except that output control oil and fuel feeding pressure-detecting device and each oil circuit interface, the protection of equipment self is had certain effect.The right side attachment face 101 of electro-hydraulic servo integrated device is that a plane does not have any blocking, and the adapter direction of oil circuit interface does not have the trend with this attachment face interference, guarantees that the integrated device installation does not receive the attachment face spatial limitation.As long as guaranteeing this attachment face is a flat surface, other attachment faces leave enough operating spaces, can change the electro-hydraulic servo integrated device.Only need when mounted to consider to work, need leave the test space for test port 14 places for the test port 14 that can guarantee solenoid valve manual test device.Convenient for on-line replacing, must increase stop valve at oily interface 11 of control and fuel feeding interface 13, other guarantee the operation of straight line motion hydraulic actuator or hydraulic equipment in not influence of the replacing system of electro-hydraulic servo integrated device.See that from whole electro-hydraulic servo integrated device profile Design of device has guaranteed versatility, the environment applicability of equipment, and the applied environment of electro-hydraulic servo integrated device is expanded.
As shown in Figure 4.Said electro-hydraulic servo integrated device also is furnished with oil circuit cleaning attachment (flushing plate); The oil port of each valve all correspondence is furnished with the flushing plate, comprises servovalve flushing plate 15a, feather valve flushing plate 15b, control electromagnetic valve flushing plate 15c, throttling adjustment valve flushing plate 15d, one-way valve flushing plate 15e, fuel feeding Pilot operated check valve flushing plate 15f.The effect of flushing plate is the oil circuit that is communicated with all valve ports, forms surging turbulent flow at the bend place when making high pressure oil by the oil-feed port inletting device through the flushing plate, and asphalt channel is formed effective flushing action.Oil circuit flushing plate plays connection oil circuit and each valve body hydraulic fluid port of sealing when the electro-hydraulic servo integrated device is washed, and forms the effect of the circulating oil path of sealing.Creating conditions for the electro-hydraulic servo integrated device provides the internal work environment of cleaning, is the precondition that whole electro-hydraulic servo integrated device control accuracy, stability, Security are protected.
The principle of this electro-hydraulic servo integrated device is: fuel feeding is converted into safety control oil through throttling adjustment valve with the pressure oil of supplying with; The safety control oil that forms upwards promotes the spool of feather valve; Close the path of output control oil and oil return, guarantee that output control oil acts on the straight line motion hydraulic actuator.The oil of safety control simultaneously control fuel feeding fluid-control one-way opening of valves makes fuel feeding be communicated with servovalve, for producing output control oil condition is provided.When servovalve received the instruction that controller sends, corresponding moving valve core position made servovalve provide output control oil maybe will export to control oil and guides oil return into, reaches the effect of accurate control straight line motion hydraulic actuator position.The mode of servovalve control straight line motion hydraulic actuator is flow control; For reducing the influence of steam bubble to the control position precision; System has considered the oil gear of scavenging action; Both can carry out online pressure monitoring to the pressure oil of output control oil and also can when test, carry out scavenging action, the effectively control accuracy of assurance device.The loop that the control oil pressure disappears when the generation urgency, solenoid valve reception instruction is adjusted valve generation safety control oil with throttling is blocked; And with the safety control oil introducing oil return that produces; The output control oil that servovalve is formed is introduced oil return fast, and the straight line motion hydraulic actuator is being returned to initial position with the straight line motion hydraulic actuator rapidly in spring action.Having under the working state of specific (special) requirements; Can select the servovalve of locking effect for use; Excise the hydraulic oil that servo power supply makes the straight line motion hydraulic actuator when needed and stop to flow, mechanism does not produce any motion after the micro-compressive strain of hydraulic oil, reaches the effect of mechanism location.The safety control oil that throttling adjustment valve produces is when pressure is higher than control oil, and to the oily fuel feeding of control, if control oil disappears when work, the straight line motion hydraulic actuator will be returned to initial position under the effect of feather valve through one-way valve.If this moment, controller did not provide any electrical control signal, the fixing throttle orifice in throttling adjustment valve rear portion will be kept certain flow, to the certain influence of fuel feeding generation of whole system; Because this throttle orifice has very little flow; Flow effect to system is little, has certain energy-conserving action, forbids the influence of a certain electro-hydraulic servo integrated device to system's hydraulic fluid flow rate if desired; But manual-lock throttling adjustment valve, total ban electro-hydraulic servo integrated device is to the demand of fuel feeding.When demand is arranged, change the solenoid electric valve and the servovalve of corresponding function, realize the intellectuality and the digitizing of the control of straight line motion hydraulic actuator, can adopt the Fieldbus Control of the control that servovalve with Field bus function and control valve reach each valve.Improve the intelligent network level of controlled device, realize the information sharing of The whole control, realize disperseing the modernization of Fieldbus Control.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. electro-hydraulic servo integrated device; Comprise case, housing, servovalve, throttling adjustment valve, fuel feeding Pilot operated check valve, the oily feather valve of control output, feather valve control electromagnetic valve, Unloading Control oil one-way valve, pressure-detecting device and pressure measuring tie-in thereof, oil circuit interface; It is characterized in that: said housing has six attachment faces, and servovalve, throttling adjustment valve, the oily feather valve of control output, feather valve control electromagnetic valve are arranged on the end face attachment face; Fuel feeding Pilot operated check valve and Unloading Control oil one-way valve are arranged on the attachment face of the back side; The pressure measuring tie-in of pressure-detecting device is arranged on the left surface attachment face; On front attachment face and the bottom surface attachment face oil circuit interface is set; The right side attachment face is a plane.
2. electro-hydraulic servo integrated device according to claim 1 is characterized in that: said case is installed on the end face attachment face, offers test port on it.
3. electro-hydraulic servo integrated device according to claim 1 is characterized in that: said servovalve is the servovalve with blocking function.
4. electro-hydraulic servo integrated device according to claim 1 is characterized in that: said servovalve is the servovalve with Field bus function.
5. electro-hydraulic servo integrated device according to claim 1 is characterized in that: be fixed with throttle orifice on the said throttling adjustment valve.
6. electro-hydraulic servo integrated device according to claim 1; It is characterized in that: the oil circuit interface is oily interface of output control and the oily oil return interface of output control on the attachment face of said front, and the oil circuit interface is the oily interface of control, the oily oil return interface of control and fuel feeding interface on the attachment face of bottom surface.
7. electro-hydraulic servo integrated device according to claim 6 is characterized in that: the oily interface of said control is connected with stop valve with the fuel feeding interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203756690U CN202228459U (en) | 2011-09-28 | 2011-09-28 | Electro-hydraulic servo integrated device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203756690U CN202228459U (en) | 2011-09-28 | 2011-09-28 | Electro-hydraulic servo integrated device |
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| CN202228459U true CN202228459U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203756690U Expired - Fee Related CN202228459U (en) | 2011-09-28 | 2011-09-28 | Electro-hydraulic servo integrated device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729440A (en) * | 2012-06-11 | 2012-10-17 | 无锡天惠塑机有限公司 | Injection molding machine hydraulic-controlled integration apparatus |
| CN104568293A (en) * | 2015-01-29 | 2015-04-29 | 安徽江淮汽车股份有限公司 | Oil-way pressure monitoring tool for hydraulic control module |
| CN104832483A (en) * | 2015-05-08 | 2015-08-12 | 日照海卓液压有限公司 | Modularized flexible integrated oil source management system |
| CN104832484A (en) * | 2015-05-08 | 2015-08-12 | 日照海卓液压有限公司 | Modular hydraulic circuit with intelligently selected anti-zero drift or anti-cavitation erosion functions |
| CN104832482A (en) * | 2015-05-08 | 2015-08-12 | 日照海卓液压有限公司 | Modularized flexible hydraulic circuit with anti-zero-drifting function |
| CN108723021A (en) * | 2018-05-21 | 2018-11-02 | 中色科技股份有限公司 | Flushing plate for flushing hydraulic pipeline |
| CN109396540A (en) * | 2018-11-02 | 2019-03-01 | 杭州电子科技大学 | The exciting broacher and its excitation parameter method of adjustment of cavity dynamic pressurization |
-
2011
- 2011-09-28 CN CN2011203756690U patent/CN202228459U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729440A (en) * | 2012-06-11 | 2012-10-17 | 无锡天惠塑机有限公司 | Injection molding machine hydraulic-controlled integration apparatus |
| CN104568293A (en) * | 2015-01-29 | 2015-04-29 | 安徽江淮汽车股份有限公司 | Oil-way pressure monitoring tool for hydraulic control module |
| CN104832483A (en) * | 2015-05-08 | 2015-08-12 | 日照海卓液压有限公司 | Modularized flexible integrated oil source management system |
| CN104832484A (en) * | 2015-05-08 | 2015-08-12 | 日照海卓液压有限公司 | Modular hydraulic circuit with intelligently selected anti-zero drift or anti-cavitation erosion functions |
| CN104832482A (en) * | 2015-05-08 | 2015-08-12 | 日照海卓液压有限公司 | Modularized flexible hydraulic circuit with anti-zero-drifting function |
| CN108723021A (en) * | 2018-05-21 | 2018-11-02 | 中色科技股份有限公司 | Flushing plate for flushing hydraulic pipeline |
| CN109396540A (en) * | 2018-11-02 | 2019-03-01 | 杭州电子科技大学 | The exciting broacher and its excitation parameter method of adjustment of cavity dynamic pressurization |
| CN109396540B (en) * | 2018-11-02 | 2023-10-27 | 杭州电子科技大学 | Excitation broaching device for dynamic pressurization of cavity and excitation parameter adjusting method thereof |
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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: 20120523 Termination date: 20140928 |
|
| EXPY | Termination of patent right or utility model |