CN107013730A - A kind of many revolution electrohydraulic actuators - Google Patents
A kind of many revolution electrohydraulic actuators Download PDFInfo
- Publication number
- CN107013730A CN107013730A CN201710391057.2A CN201710391057A CN107013730A CN 107013730 A CN107013730 A CN 107013730A CN 201710391057 A CN201710391057 A CN 201710391057A CN 107013730 A CN107013730 A CN 107013730A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- electromagnet
- oil cylinder
- swing rod
- pawl
- Prior art date
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses turn round electrohydraulic actuator, including miniature power unit, safety valve, pressure sensor, two position and four-way reversing valves, left execution oil cylinder, right execution oil cylinder, output shaft, ratchet swing rod, ratchet, left pawl, right ratchet, left electromagnet, right electromagnet and controller one kind more.Miniature power unit provides pressure oil to system, and ratchet is rotated together with output shaft connection simultaneously；Left electromagnet connects right ratchet；Right electromagnet connects left pawl；Left electromagnet, right electromagnet and left pawl, right ratchet are swung together with ratchet swing rod；Rodless cavity of the miniature power unit by two position and four-way reversing valves to left execution oil cylinder, right execution oil cylinder leads to pressure oil；It is left to perform the rod chamber connection ratchet swing rod of oil cylinder, right execution oil cylinder, and promote ratchet swing rod to be swung back and forth according to certain angle, bidirectional ratchet is promoted, the pole rotation outputs turned round at a slow speed are realized more.The small volume, lightweight of the present invention, the rotation speed of ratchet is easily adjusted, and can realize the rotation of pole at a slow speed.
Description
Technical field
The present invention relates to technical field of automatic control.Specifically, the present invention relates to turn round electrohydraulic actuator one kind more.
Background technology
With the development of automatic technology, valve actuator be widely used in oil, chemical industry, electric power, the energy, ship, metallurgy,
In the field such as boiler plant and building automatic.But in certain fields (such as refrigeration industry), have special to valve actuator
Requirement, i.e., valve should not open and close it is too fast, it usually needs by 3 to 8 minutes not wait time, pass through revolution more than 10
Enclose to open and close valve.
Used valve actuator, is Direct Travel either angie type executing agency mostly in the market, and angie type is performed
Mechanism, its maximum output angle is generally 90 °；Also there is actuator (such as patent turned round more：CN 205824320, patent CN
, but its technical scheme used is also pure electronic output or by hydraulic motor plus the principle of The gear deceleration 102720880)
To realize many revolutions, for need occasion that pole opens at a slow speed, it is necessary to gear reduction ratio be accomplished by very big, certainly will allow and entirely hold
The volume and weight of row device becomes big, and the installing space of valve is can not meet again.
The content of the invention
It is an object of the invention to provide electrohydraulic actuator is turned round one kind more, meet needs actuator at a slow speed and multi-turn is opened
The requirement opened and closed.
To achieve these goals, the invention provides turning round electrohydraulic actuator one kind more, including miniature power unit,
Safety valve, pressure sensor, two position and four-way reversing valves, left execution oil cylinder, right execution oil cylinder, output shaft, ratchet swing rod, ratchet,
Left pawl, right ratchet, left electromagnet, right electromagnet and controller；The miniature power unit is driven by DC micromotor
Hydraulic pump provides a system to pressure oil；The safety valve and the pressure sensor are arranged in high-pressure oil passage；It is described miniature dynamic
The one end of power unit respectively with described left one end for performing oil cylinder, right execution oil cylinder is connected by two position and four-way reversing valve；
The left other end for performing oil cylinder, the other end of right execution oil cylinder connect the ratchet swing rod, alternately promote ratchet swing rod to press
Swung back and forth according to certain angle；The ratchet is rotated together with output shaft connection simultaneously；The output shaft docking safety valve
Interface；The left electromagnet connects the right ratchet；The right electromagnet connects the left pawl；The left electromagnet, right electricity
Magnet, left pawl and right ratchet are swung together with the ratchet swing rod；The controller is responsible for controlling all parts system
Fixed action.
As a kind of embodiment, the left execution oil cylinder and the right rodless cavity for performing oil cylinder and described two four
Logical reversal valve connection, the left execution oil cylinder and the right rod chamber for performing oil cylinder are connected with the ratchet swing rod, and often
When left execution oil cylinder leads to hydraulic oil, then right execution oil cylinder leads to fuel tank；Conversely, when right execution oil cylinder leads to hydraulic oil, then a left side is held
Row oil cylinder leads to fuel tank, so that the ratchet swing rod swings back and forth according to the frequency and angle of setting, drives ratchet rotated stepwise.
I.e. by a pair of execution oil cylinders, bidirectional ratchet is promoted, the pole rotation outputs turned round at a slow speed are realized more.
As a kind of embodiment, the left electromagnet is connected with the right ratchet, and left electromagnet is powered then by right spine
Pawl pull-up, makes right ratchet leave working position；Left electromagnet dead electricity then resets and can incited somebody to action by the initial tension of spring of electromagnet in itself
Right ratchet is maintained at working position；The right electromagnet is connected with the left pawl, and right electromagnet is powered then by left pawl pull-up, makes
Left pawl leaves working position；Right electromagnet dead electricity then resets and can kept right ratchet by the initial tension of spring of electromagnet in itself
In working position.
As a kind of embodiment, high-pressure oil passage is provided with pressure sensor, and the pressure sensor is used to supervise in real time
Examining system operating pressure, and system working pressure is sent to controller；Critical pressure value is set with the controller, is used for
Carry out the digital overload protection of output torque.
It is used as a kind of embodiment, the safety valve, for protecting system so that the operating pressure of system is less than default
Pressure value.
As a kind of embodiment, the controller adjusts the discharge capacity of miniature power unit by controlled motor rotating speed,
The operating frequency of ratchet is adjusted so as to the operating frequency of adjustable column plug cylinder, the velocity of rotation of output shaft is adjusted.
As a kind of embodiment, the left electromagnet, right electromagnet carry back-moving spring, with certain during installation
Initial tension of spring；The base of the left electromagnet and right electromagnet is fixed on ratchet swing rod and swung together with ratchet swing rod.
As a kind of embodiment, the rotating shaft and the rotating shaft of right ratchet that the left pawl turns are fixed on the ratchet swing rod
On, and swung together with ratchet swing rod.
The operation principle of the present invention is as follows：
When controller receives the order for needing valve opening (rotate counterclockwise), left electromagnet, which is obtained, electric to be drawn right ratchet
Rise, right ratchet leaves working position, left pawl is maintained at working position by the initial tension of spring of right electromagnet；Now small power list
It is first electric, motor start working and by two four-way electromagnetic reversing valves come according to the frequency of setting alternately to left execution oil cylinder or
The right rodless cavity for performing oil cylinder of person provides pressure oil；The left rodless cavity for performing oil cylinder and right execution oil cylinder promote ratchet swing rod according to
Certain angle swings back and forth, so as to drive left pawl to swing back and forth according to certain angle to promote ratchet step-by-step movement counterclockwise
Rotate, then drive output shaft to rotate counterclockwise by ratchet, realize the action of Open valve counterclockwise；Such multi-turn, until valve
Open, system pressure rapidly rises to the setting value up to pressure sensor, pressure sensor is signaled to controller, control completely
Device processed, which sends instruction, allows motor to stall, and miniature power unit is stopped, system dead electricity, and left electromagnet resets.
When controller receives the order for needing valve to close (turning clockwise), right electromagnet, which is obtained, electric to be drawn left pawl
Rise, left pawl leaves working position, right ratchet is maintained at working position by the initial tension of spring of left electromagnet；Now small power list
Member starts again at work and alternately performs oil cylinder or right execution oil cylinder to left according to the frequency of setting by solenoid directional control valve
Rodless cavity provide pressure oil；The rod chamber of left execution oil cylinder and right execution oil cylinder promotes ratchet swing rod to come according to certain angle
Backswing is moved, so that drive right ratchet to swing back and forth according to certain angle to promote ratchet rotated stepwise clockwise, then by spine
Wheel drives output shaft to rotate clockwise, and realizes the action for closing valve；Such multi-turn, until valve is completely closed, system pressure
Rapidly rise to the setting value up to pressure sensor, pressure sensor is signaled to controller, controller sends instruction and allows electricity
Machine is stalled, and miniature power unit is stopped, system dead electricity, and right electromagnet resets.Wait is instructed next time.
Present invention beneficial effect compared with the prior art is：
1, the present invention is driven by the way of combination of electric and hydraulic, the high advantage of hydraulic system power density is given full play to, in phase
Etc. under torque condition, overall volume is small lightweight, is easy to site layout project valve actuator；
2, the present invention can realize the rotation of pole at a slow speed, the rotation speed of ratchet can by ratchet swing rod swing angle, micro-
The flow of type power unit is adjusted with the diameter of oil cylinder is performed, very flexibly；
3, the present invention can be played a very good protection to valve, and the numerical value of pressure sensor is read in real time, and in control
The middle rational critical pressure value of setting, you can directly control the size of actuator Overload torque；
4, simple in construction as output executing mechanism by the way of ratchet mechanism and plunger case are combined, reliable and stable, dimension
Shield is convenient.
Brief description of the drawings
Fig. 1 is the structural representation of many revolution electrohydraulic actuators provided in an embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the technical characteristic above-mentioned and other to the present invention and advantage progress are clear, are fully described by, and show
So, described embodiment is only the section Example of the present invention, rather than whole embodiments.
The present invention is further detailed below in conjunction with the accompanying drawings.
As shown in figure 1, many revolution electrohydraulic actuators provided in an embodiment of the present invention are by miniature power unit 1, safety valve
2, pressure sensor 3, two four-way electromagnetic reversing valves 4, left execution oil cylinder 5, right execution oil cylinder 6, output shaft 7, ratchet 8, ratchet
Swing rod 9, left pawl 10, right ratchet 11, left electromagnet 12, right electromagnet 13 is constituted.Whole action is controlled to complete by controller.
With continued reference to Fig. 1, miniature power unit 1 drives plunger pump to produce hydraulic oil by DC micromotor, and is provided with
Check valve；When controller receives the order for needing valve opening (rotate counterclockwise), left electromagnet 12 obtains electric, produces one
The right pull-up of ratchet 11, right ratchet 11 are disengaged ratchet certain altitude, leave working position by pulling force, right ratchet position as indicated by the dashed lines
Put；Left pawl 10 is maintained at working position by the initial tension of spring of right electromagnet 13；The now micromachine of miniature power unit 1
Electric start-up operation is obtained, and alternately oil cylinder 5 or the right side are performed to left according to the frequency of setting by two four-way electromagnetic reversing valves 4
The rodless cavity for performing oil cylinder 6 provides pressure oil；And left execution oil cylinder 5 and the right rod chamber for performing oil cylinder 6 are connected with ratchet swing rod,
Under the promotion of pressure oil, it is left execution oil cylinder 5 and it is right execution oil cylinder 6 alternately promote ratchet swing rod 9 according to certain angle back and forth
Swing, while ratchet swing rod 9 drives left pawl 10 to swing back and forth according to certain angle to promote the step-by-step movement counterclockwise of ratchet 8 to turn
It is dynamic, finally drive output shaft 7 to rotate counterclockwise by ratchet 8 again, realize the action of Open valve；Such multi-turn, until valve is complete
Complete to open, system pressure rapidly rises to the setting value up to pressure sensor 3, and pressure sensor 3 is signaled to controller, controls
Device processed, which sends instruction, allows miniature power unit 1 to be stopped, and system dead electricity, left electromagnet 12 resets.
Similarly, when controller receives the order for needing valve to close (turning clockwise), right electromagnet 13 obtains electric, production
The pull-up of left pawl 10, left pawl 10 are disengaged ratchet certain altitude, leave working position by a raw pulling force；Right ratchet 11 is relied on simultaneously
The initial tension of spring of left electromagnet 12 is maintained at working position；Now the micromachine of miniature power unit 1 obtains electric start-up operation, and
By two four-way electromagnetic reversing valves 4 come according to the frequency of setting alternately to it is left execution oil cylinder 5 or it is right perform oil cylinder 6 without bar
Chamber provides pressure oil；And left execution oil cylinder 5 and the right rod chamber for performing oil cylinder 6 are connected with ratchet swing rod, in the promotion of pressure oil
Under, left execution oil cylinder 5 and right execution oil cylinder 6 alternately promote ratchet swing rod 9 to be swung back and forth according to certain angle, while ratchet is put
Bar 9 drives right ratchet 11 to swing back and forth according to certain angle to promote the rotated stepwise clockwise of ratchet 8, finally again by ratchet
8 drive output shafts 7 are rotated clockwise, and realize the action of Open valve；Such multi-turn, until valve is opened completely, system pressure
The setting value up to pressure sensor 3 is rapidly risen to, pressure sensor 3 is signaled to controller, and controller sends instruction and allowed
Miniature power unit 1 is stopped, system dead electricity, and right electromagnet 13 resets.System is waited and instructed next time, is circulated with this.
The present invention drives by using the mode of combination of electric and hydraulic, gives full play to the high advantage of hydraulic system power density,
In the case of equal torque, overall volume is small lightweight, is easy to site layout project valve actuator, and can realize turn of pole at a slow speed
Dynamic, the rotation speed of ratchet can be big by the diameter of the swing angle of ratchet swing rod, the flow of miniature power unit and execution oil cylinder
It is small to adjust, very flexibly.Moreover it is possible to be played a very good protection to valve, the numerical value of pressure sensor is read in real time,
And rational critical pressure value is set in control, you can directly control the size of actuator Overload torque；Using ratchet mechanism
The mode combined with plunger case is simple in construction as output executing mechanism, reliable and stable, easy to maintenance.
Particular embodiments described above, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, it will be appreciated that the foregoing is only the specific embodiment of the present invention, the protection being not intended to limit the present invention
Scope.Particularly point out, to those skilled in the art, within the spirit and principles of the invention, that is done any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (8)
1. a kind of many revolution electrohydraulic actuators, it is characterised in that including miniature power unit, safety valve, pressure sensor, two
Position and four-way reversing valve, left execution oil cylinder, right execution oil cylinder, output shaft, ratchet swing rod, ratchet, left pawl, right ratchet, left electromagnetism
Iron, right electromagnet and controller；The miniature power unit drives hydraulic pump to provide a system to pressure by DC micromotor
Oil；The safety valve and the pressure sensor are arranged in high-pressure oil passage；The miniature power unit is held with the left side respectively
One end of row oil cylinder, one end of right execution oil cylinder are connected by two position and four-way reversing valve；It is described it is left perform oil cylinder it is another
End, the right other end for performing oil cylinder connect the ratchet swing rod, alternately promote ratchet swing rod to be swung back and forth according to certain angle；Institute
State ratchet and the output shaft connect and together with rotate；The output shaft docks the interface of safety valve；The left electromagnet connection
The right ratchet；The right electromagnet connects the left pawl；The left electromagnet, right electromagnet, left pawl and right ratchet
Swung together with the ratchet swing rod；The controller is responsible for the action for controlling all parts to be formulated.
2. many revolution electrohydraulic actuators according to claim 1, it is characterised in that the left execution oil cylinder and the right side
The rodless cavity for performing oil cylinder be connected with two position and four-way reversing valve, and the left execution oil cylinder and the right execution oil cylinder have bar
Chamber is connected with the ratchet swing rod, and when left execution oil cylinder leads to hydraulic oil, then right execution oil cylinder leads to fuel tank；Conversely, working as
When right execution oil cylinder leads to hydraulic oil, then left execution oil cylinder leads to fuel tank, so that frequency and angle of the ratchet swing rod according to setting
Swing back and forth, drive ratchet rotated stepwise.
3. many revolution electrohydraulic actuators according to claim 1, it is characterised in that the left electromagnet and the right spine
Pawl is connected, and left electromagnet is powered then by right ratchet pull-up, right ratchet is left working position；Left electromagnet dead electricity then resets and can led to
Cross the initial tension of spring of electromagnet in itself and right ratchet is maintained at working position；The right electromagnet is connected with the left pawl, right
Electromagnet is powered then by left pawl pull-up, left pawl is left working position；Right electromagnet dead electricity then resets and can be by electromagnet
Right ratchet is maintained at working position by the initial tension of spring of itself.
4. many revolution electrohydraulic actuators according to claim 1, it is characterised in that high-pressure oil passage is provided with pressure sensing
Device, the pressure sensor is used for real-time monitoring system operating pressure, and system working pressure is sent to controller；The control
Critical pressure value is set with device processed, the digital overload for carrying out output torque is protected.
5. many revolution electrohydraulic actuators according to claim 1, it is characterised in that the safety valve, for protecting system
System so that the operating pressure of system is less than preset pressure value.
6. many revolution electrohydraulic actuators according to claim 1 or 2, it is characterised in that the controller passes through control
Motor speed, adjusts the discharge capacity of miniature power unit, so that the operating frequency of adjustable column plug cylinder adjusts the operating frequency of ratchet,
Adjust the velocity of rotation of output shaft.
7. many revolution electrohydraulic actuators according to claim 3, it is characterised in that the left electromagnet, right electromagnet
With back-moving spring, with certain initial tension of spring during installation；The base of the left electromagnet and right electromagnet is fixed on spine
Swing on wheel swing rod and together with ratchet swing rod.
8. many revolution electrohydraulic actuators according to claim 3, it is characterised in that rotating shaft and the right side that the left pawl turns
The rotating shaft of ratchet is fixed on the ratchet swing rod, and swung together with ratchet swing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391057.2A CN107013730B (en) | 2017-05-27 | 2017-05-27 | Multi-rotation electro-hydraulic actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391057.2A CN107013730B (en) | 2017-05-27 | 2017-05-27 | Multi-rotation electro-hydraulic actuating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013730A true CN107013730A (en) | 2017-08-04 |
| CN107013730B CN107013730B (en) | 2022-12-23 |
Family
ID=59450907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710391057.2A Active CN107013730B (en) | 2017-05-27 | 2017-05-27 | Multi-rotation electro-hydraulic actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013730B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642512A (en) * | 2017-10-19 | 2018-01-30 | 燕山大学 | A kind of electro-hydraulic intermittent swing mechanism of driving |
| CN108225500A (en) * | 2018-04-10 | 2018-06-29 | 武汉市计量测试检定（研究）所 | A kind of fine liquid flow electromagnetic commutator |
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| CN101580992A (en) * | 2008-05-14 | 2009-11-18 | 上海力池机械有限公司 | Ratchet clutch and brake electromagnetic automatic control electronic dobby machine |
| US20130056095A1 (en) * | 2010-05-14 | 2013-03-07 | Xiamen Solex High-Tech Industries Co., Ltd. | Self-reset valve |
| US20150316169A1 (en) * | 2014-05-02 | 2015-11-05 | Master Flo Valve Inc. | Rotary Stepping Actuator for Valve |
| CN204782691U (en) * | 2015-07-10 | 2015-11-18 | 深圳市德宝门控科技有限公司 | Simple and easy tripod turnstile core structure |
| CN106678413A (en) * | 2017-01-07 | 2017-05-17 | 上海卡威机械技术有限公司 | Hyperslow multi-turn electrohydraulic executing mechanism |
| CN206889797U (en) * | 2017-05-27 | 2018-01-16 | 杭州诺祥科技有限公司 | A kind of more revolution electrohydraulic actuators |
-
2017
- 2017-05-27 CN CN201710391057.2A patent/CN107013730B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580992A (en) * | 2008-05-14 | 2009-11-18 | 上海力池机械有限公司 | Ratchet clutch and brake electromagnetic automatic control electronic dobby machine |
| US20130056095A1 (en) * | 2010-05-14 | 2013-03-07 | Xiamen Solex High-Tech Industries Co., Ltd. | Self-reset valve |
| US20150316169A1 (en) * | 2014-05-02 | 2015-11-05 | Master Flo Valve Inc. | Rotary Stepping Actuator for Valve |
| CN204782691U (en) * | 2015-07-10 | 2015-11-18 | 深圳市德宝门控科技有限公司 | Simple and easy tripod turnstile core structure |
| CN106678413A (en) * | 2017-01-07 | 2017-05-17 | 上海卡威机械技术有限公司 | Hyperslow multi-turn electrohydraulic executing mechanism |
| CN206889797U (en) * | 2017-05-27 | 2018-01-16 | 杭州诺祥科技有限公司 | A kind of more revolution electrohydraulic actuators |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642512A (en) * | 2017-10-19 | 2018-01-30 | 燕山大学 | A kind of electro-hydraulic intermittent swing mechanism of driving |
| CN108225500A (en) * | 2018-04-10 | 2018-06-29 | 武汉市计量测试检定（研究）所 | A kind of fine liquid flow electromagnetic commutator |
| CN108225500B (en) * | 2018-04-10 | 2024-01-23 | 武汉市计量测试检定（研究）所 | Micro liquid flow electromagnetic commutator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107013730B (en) | 2022-12-23 |
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