CN108980137A - A kind of executing agency of high response long-life high reliability - Google Patents
A kind of executing agency of high response long-life high reliability Download PDFInfo
- Publication number
- CN108980137A CN108980137A CN201811145198.7A CN201811145198A CN108980137A CN 108980137 A CN108980137 A CN 108980137A CN 201811145198 A CN201811145198 A CN 201811145198A CN 108980137 A CN108980137 A CN 108980137A
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- China
- Prior art keywords
- valve
- spool
- oil
- electromagnet
- executing agency
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
-
- 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
- F15B21/08—Servomotor systems incorporating electrically operated control means
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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)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a kind of executing agencies of high response long-life high reliability, including shell, oil inlet mouthpiece, oil return opening, electromagnetic valve components and its controller, check valve, spring-damp system, valve seat, piston rod executing agency, wherein electromagnetic valve components are made of electromagnet, armature, spool；Armature and spool are rigidly connected, and filter and throttle orifice are arranged before the check valve of oil inlet, and check valve can prevent the oil liquid adverse current of main valve chamber from entering oil inlet；Spring-damp system is set between control mouth and oil return opening, plays buffer function in the process of control mouth oil liquid release, slows down the rigid collision between piston rod and piston bush, improves reliability, prolongs the service life；In addition, being equipped with cooling circuit on valve body and spool, so that oil liquid is flowed through the air gap between electromagnet and armature, certain cooling effect is played to electromagnet, improve its functional reliability.
Description
Technical field
The present invention relates to a kind of executing agencies of high response long-life high reliability, and in particular to one kind is for middle-size and small-size negative
Carry the high reliability single-out lever executing agency responded up to 60Hz or more.
Background technique
Be required to the hydraulic actuating mechanism of high frequency sound in petroleum chemical enterprise, Aeronautics and Astronautics field, especially petroleum chemical enterprise in order to
Reach energy-efficient effect, has studied various types of amount regulating systems both at home and abroad, and the hydraulic actuating mechanism of high frequency sound is it
An important component.
At present there is the problems such as movement clamping stagnation, poor reliability, short service life in amount regulating system in terms of hydraulic actuating mechanism.
Summary of the invention
The purpose of the present invention is to provide a kind of high reliability lists for middle-size and small-size load response up to 60Hz or more to go out
Rod-type executing agency has the characteristics that response is fast, life time is long.
Realize the object of the invention technical solution are as follows: it is a kind of it is high response long-life high reliability executing agency, by shell,
Valve body, electromagnetic valve components and its controller, oil inlet mouthpiece, oil return opening, check valve, spring-damp system, valve seat and piston rod
Executing agency's composition；
The electromagnetic valve components include spool, screw, armature and electromagnet, and electromagnetic valve components are embedded in the inner hole of valve body,
Spool and armature are rigidly connected by screw, and valve body is set between oil inlet mouthpiece and electromagnetic valve components in the inner hole of shell
Check valve is set, throttle orifice realizes positioning and sealing, piston rod by valve seat between spool and oil return opening in oil inlet mouthpiece
Spring-damp system is equipped between executing agency and oil return opening；
When electromagnet is in off-position, spool and armature are located at right end, and throttling window is opened, and the oil liquid of entrance can flow
Through solenoid valve to plunger shaft；When electromagnet obtains electric, spool and armature are by actuation and positioned at left end, and throttle close, piston
The oil liquid of chamber enters oil return opening fuel tank under the action of load force；
The spring-damp system includes spring and damper, and spring is wound on the outside of damper, when electromagnetic valve components are in
When attracting state, the intracavitary oil liquid of spring-damp system is communicated with oil return opening, the oil liquid of plunger shaft under the action of load force to
The spring of right compressed spring damping system forms a cavity A, and the oil liquid in plunger shaft flow to cavity A, so that piston rod be made to hold
Row mechanism kinematic.
Further, the slide valve pair formed between the spool and valve body uses setting convex shoulder+plane among spool close
The frame mode of envelope, during the motion, the left side is limited spool by the convex shoulder on valve body, and the right is limited by valve seat.
Further, the electromagnet is composed of the direct wound around coil of " E " type structure iron core.
Further, in normal work electromagnet be wet type state, the high pressure oil of entrance by shell and valve body it
Between gap and the cooling circuit on valve body to oil return opening, immerse electromagnet inside coil and iron core.
Further, the controller includes a communication interface, passes through RS485 or CAN bus and higher level's signal communication；
Controller takes the control mode of pulsewidth modulation, provides voltage signal for electromagnet.
Compared with prior art, remarkable advantage of the invention are as follows:
(1) piston rod executing agency is directly integrated in solenoid valve together by the present invention by solenoid-driven executing agency
In one valve body, the rigidity of structure, integrated level and transmission efficiency of system are improved；(2) it in the design aspect of controller, uses
Reasonable control strategy, had not only substantially increased the response speed of opening and closing, but also reduced the fever of controller, improved it
Functional reliability and service life；(3) in mechanism design aspect, many places seal the frame mode for taking flat seal, improve
Sealing reliability of the executing agency under long continuous operation state；(4) the slide valve pair formed between spool and valve body is taken
The frame mode of small convex shoulder+flat seal is set among spool, and can not only form ring-like window reduces liquid to the maximum extent
Stream flows through the pressure drop of electromagnetic valve components, and liquid stream outflow direction is parallel with high pressure oil Way at the window that throttles, and can make
Hydraulic power is almost reduced to zero inside solenoid valve, the influence of hydraulic power is reduced, to provide the speed of response of solenoid valve.Spool is being transported
During dynamic, the left side is limited by the convex shoulder on valve body, and the right is limited by valve seat；(5) piston rod executing agency and oil return opening
Between be equipped with spring-damp system, when electromagnetic valve components be in be attracted (closing) state when, the intracavitary oil liquid of spring-damp system
It is communicated with oil return opening, the oil liquid of plunger shaft spring of compressed spring damping system to the right under the action of load force forms one
Cavity A, the oil liquid in plunger shaft can flow to rapidly cavity A, to make piston rod executing agency realize high-speed motion, later
It buffers and resets under the limitation of damping hole, not only effectively increase response speed, but also improve its job stability.
Detailed description of the invention
Fig. 1 is executing agency's schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of solenoid valve slide valve pair.
Fig. 3 is electromagnet coil part structure diagram.
Fig. 4 is controller circuitry schematic diagram.
Fig. 5 is spring-damp system structural schematic diagram.
Fig. 6 is one-way valve structures figure.
Marked in the figure: 1, shell, 2, valve body, 3, electromagnetic valve components, 4, oil inlet mouthpiece, 5, throttle orifice, 6, check valve, 7,
Spring-damping system, 8, oil return opening, 9, valve seat, 10, spool, 11, piston bush, 12, piston rod, 13, reset spring, 14, spiral shell
Nail, 15, armature, 16, electromagnet, 17, controller, 18, damper, 19, spring.
Specific embodiment
As shown in Figure 1, a kind of executing agency of high response long-life high reliability, by shell 1, valve body 2, electromagnetic valve components
3 and its controller 17, oil inlet mouthpiece 4, oil return opening 8, check valve 6, spring-damp system 7, valve seat 9, piston rod executing agency
12 compositions；
The electromagnetic valve components 3 include spool 10, screw 14, armature 15 and electromagnet 16, and electromagnetic valve components 3 are embedded in valve body
In 2 inner hole, spool 10 is rigidly connected with armature 15 by screw 14, and valve body 2 is in the inner hole of shell 1, oil inlet mouthpiece 4
Check valve 6 is set between electromagnetic valve components 3, and throttle orifice 5 passes through between spool 10 and oil return opening 8 in oil inlet mouthpiece 4
Valve seat 9 realizes positioning and sealing, and spring-damp system 7 is equipped between piston rod executing agency 12 and oil return opening 8；
The electromagnetic valve components 3 are the normally open valve of two-bit triplet formula, when electromagnet 16 is in off-position, spool 10 and rank
Iron 15 is located at right end, and throttling window is opened, and the oil liquid of entrance can flow through solenoid valve to plunger shaft；When electromagnet 16 obtains electric, valve
Core 10 and armature 15 are by actuation and positioned at left end, and throttle close, and the oil liquid of plunger shaft enters under the action of load force
Oil return opening fuel tank.Reset spring 13 is arranged in 10 periphery of spool, and both ends are contacted with electromagnetic valve components 3, valve body 2.Piston rod executes
12 periphery of mechanism is cased with piston bush 11.
In the present invention, it is left end close to 16 side of electromagnet that defining close to 8 side of oil return opening, which is right end,.
As shown in Fig. 2, the slide valve pair formed between the spool 10 and valve body 2 take among spool 10 be arranged convex shoulder+
The frame mode of flat seal, not only can form ring-like window to the maximum extent reduces the pressure that liquid stream flows through electromagnetic valve components 3
Drop, and liquid stream outflow direction is parallel with high pressure oil Way at the window that throttles, and can make solenoid valve inside hydraulic power almost
It is reduced to zero, reduces the influence of hydraulic power, to provide the speed of response of solenoid valve.The structure of flat seal is taken, can also be protected
Demonstrate,prove sealing reliability of the electromagnetic valve components 3 under continuous switch operating state for a long time.During the motion, the left side is logical for spool 10
The convex shoulder limit on valve body 2 is crossed, the right is limited by valve seat 9.
As shown in figure 3, the electromagnet 16 is composed of the direct wound around coil of " E " type structure iron core, iron core is by soft magnetism
Alloy or electrical pure iron are directly processed, and final electromagnet is formed through Multi-step injection molding, convenient for reducing in the mass production stage
Cost.In addition, the design of electromagnet uses the Redundancy Design theory of twin coil parallel operation, the design feature of double redundancy is improved
Its functional reliability.The state of wet type in normal work, the high pressure oil of entrance by gap between shell 1 and valve body 2,
And the cooling circuit on valve body 2 to oil return opening 8, the coil and iron core inside electromagnet 16 are immersed, is played cooling and heat dissipation
Effect, guarantees high reliability of the executing agency under long-term non-stop run state.
As shown in figure 4, the controller 17 include a communication interface, realized by way of RS485 or CAN bus with
The timely communication of higher level's signal, Power Groud and digital communication are digitally in isolation, and have the function of overcurrent protection.Control
Device processed takes the control mode of pulse-width modulation PWM, provides voltage signal for electromagnet 16, and be attracted using high voltage high speed, low
Voltage maintains, and release makes coil current quickly be reduced to zero switch-control strategy using negative direction voltage is applied, and makes electromagnetism valve portion
Part 3 reaches the characteristic of high speed actuation and high speed pay-out.
As shown in figure 5, the spring-damp system 7 is between piston rod executing agency 12 and oil return opening 8, including spring
19 and damper 18, spring 19 is wound on 18 outside of damper, when electromagnetic valve components 3, which are in, is attracted closed state, spring damping
The intracavitary oil liquid of system 7 is communicated with oil return opening, the oil liquid of plunger shaft compressed spring damping system 7 to the right under the action of load force
Spring, form a cavity A, the oil liquid in plunger shaft can flow to rapidly cavity A, to keep piston rod executing agency real
Existing high-speed motion buffers under the limitation of damping hole reset later, not only effectively increases response speed, but also to improve its work steady
It is qualitative.
The piston rod executing agency 12 belongs to the form of single rod, single-acting, and electromagnetism the valve opening state relies on high pressure
Oil starting, electromagnetism valve closing state are resetted by load force.
As shown in fig. 6, the check valve 6 is located at oil inlet, 6 spool of check valve takes the frame mode of flat seal,
To guarantee sealing reliability of the executing agency of the present invention under continuous switch operating state for a long time.
The valve seat 9 between spool 10 and oil return opening 8, by it is real with length realize the adjusting that spool 10 be displaced with
Limit.
The operation principle of the present invention is that: the signal of host computer is received by controller and to the voltage control of electromagnet output response
The movement of piston rod executing agency processed.Electromagnet is in off-position, and spool and armature are located at right end, and throttling window is opened,
The oil liquid of entrance can flow through solenoid valve to plunger shaft, piston rod starting, pushing executing mechanism movement；When electromagnet obtains electric, spool
Left end is located at by actuation with armature, throttle close, and the oil liquid of plunger shaft flows through spring resistance under the action of load force
Damping system enters oil return opening fuel tank, while piston rod resets.
Claims (6)
1. a kind of executing agency of high response long-life high reliability, which is characterized in that by shell (1), valve body (2), solenoid valve
Component (3) and its controller (17), oil inlet mouthpiece (4), oil return opening (8), check valve (6), spring-damp system (7), valve seat
(9) it is formed with piston rod executing agency (12)；
The electromagnetic valve components (3) include spool (10), screw (14), armature (15) and electromagnet (16), electromagnetic valve components (3)
In the inner hole of valve body (2), spool (10) and armature (15) are rigidly connected by screw (14), and valve body (2) is embedded in shell (1)
Inner hole in, between oil inlet mouthpiece (4) and electromagnetic valve components (3) be arranged check valve (6), throttle orifice (5) be embedded in oil inlet oral area
In part (4), realize positioning and sealing by valve seat (9) between spool (10) and oil return opening (8), piston rod executing agency (12) and
Spring-damp system (7) are equipped between oil return opening (8)；
When electromagnet (16) is in off-position, spool (10) and armature (15) are located at right end, and throttling window is opened, entrance
Oil liquid can flow through solenoid valve to plunger shaft；When electromagnet (16) obtains electric, spool (10) and armature (15) are located at most left by actuation
End, throttle close, and the oil liquid of plunger shaft enters oil return opening fuel tank under the action of load force；
The spring-damp system (7) includes spring (19) and damper (18), and spring (19) is wound on the outside of damper (18), when
When electromagnetic valve components (3) are in attracting state, the intracavitary oil liquid of spring-damp system (7) is communicated with oil return opening, the oil of plunger shaft
Liquid spring (19) of compressed spring damping system (7) to the right under the action of load force, forms a cavity A, in plunger shaft
Oil liquid flow to cavity A, so that piston rod executing agency be made to move.
2. the executing agency of high response long-life high reliability according to claim 1, which is characterized in that the spool
(10) the slide valve pair formed between valve body (2) is used is arranged convex shoulder+flat seal frame mode, valve among spool (10)
During the motion, by the convex shoulder limit on valve body (2), the right is limited core (10) by valve seat (9) on the left side.
3. the executing agency of high response long-life high reliability according to claim 1, which is characterized in that the electromagnet
(16) it is composed of the direct wound around coil of " E " type structure iron core.
4. the executing agency of high response long-life high reliability according to claim 3, which is characterized in that working normally
When electromagnet (16) be wet type state, the high pressure oil of entrance passes through gap between shell (1) and valve body (2) and valve body
(2) to the cooling circuit on oil return opening (8), electromagnet (16) internal coil and iron core is immersed.
5. the executing agency of high response long-life high reliability according to claim 1, which is characterized in that the controller
(17) include a communication interface, pass through RS485 or CAN bus and higher level's signal communication.
6. the executing agency of high response long-life high reliability according to claim 5, which is characterized in that controller (17)
The control mode of pulsewidth modulation is taken, provides voltage signal for electromagnet (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811145198.7A CN108980137A (en) | 2018-09-29 | 2018-09-29 | A kind of executing agency of high response long-life high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811145198.7A CN108980137A (en) | 2018-09-29 | 2018-09-29 | A kind of executing agency of high response long-life high reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980137A true CN108980137A (en) | 2018-12-11 |
Family
ID=64543095
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811145198.7A Pending CN108980137A (en) | 2018-09-29 | 2018-09-29 | A kind of executing agency of high response long-life high reliability |
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| Country | Link |
|---|---|
| CN (1) | CN108980137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778490A (en) * | 2019-11-11 | 2020-02-11 | 无锡康茨压缩机配件与***有限公司 | Stepless air quantity regulating air valve operation method and hydraulic damping device thereof |
| CN111497806A (en) * | 2020-04-22 | 2020-08-07 | 西安航空制动科技有限公司 | Airplane brake pilot type hydraulic electromagnetic valve |
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| CN205706529U (en) * | 2016-04-22 | 2016-11-23 | 浙江宝成机械科技有限公司 | Pure electric vehicle controller |
| CN106968997A (en) * | 2016-11-08 | 2017-07-21 | 贵州红林机械有限公司 | A kind of reciprocating compressor novel high speed magnetic valve and its assembly method |
| CN206449036U (en) * | 2016-11-08 | 2017-08-29 | 贵州红林机械有限公司 | A kind of reciprocating compressor novel high speed magnetic valve |
| CN208997064U (en) * | 2018-09-29 | 2019-06-18 | 江苏金陵智造研究院有限公司 | A kind of executing agency of high response long-life high reliability |
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| CN2179484Y (en) * | 1993-12-03 | 1994-10-12 | 河北工学院 | Self-exciting regulating hydraulic pulse valve |
| CN2448976Y (en) * | 2000-07-30 | 2001-09-19 | 刘顺安 | Electricity liquid ratio reversal valve |
| CN201994235U (en) * | 2011-03-10 | 2011-09-28 | 索肯和平(上海)电气有限公司 | Improved permanent magnet vacuum breaker controller |
| CN102434543A (en) * | 2011-12-29 | 2012-05-02 | 济南大学 | Miniature electromagnetic pulse type hydraulic driving system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110778490A (en) * | 2019-11-11 | 2020-02-11 | 无锡康茨压缩机配件与***有限公司 | Stepless air quantity regulating air valve operation method and hydraulic damping device thereof |
| CN111497806A (en) * | 2020-04-22 | 2020-08-07 | 西安航空制动科技有限公司 | Airplane brake pilot type hydraulic electromagnetic valve |
| CN111497806B (en) * | 2020-04-22 | 2022-04-19 | 西安航空制动科技有限公司 | Airplane brake pilot type hydraulic electromagnetic valve |
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