CN206889797U - A kind of more revolution electrohydraulic actuators - Google Patents
A kind of more revolution electrohydraulic actuators Download PDFInfo
- Publication number
- CN206889797U CN206889797U CN201720609890.5U CN201720609890U CN206889797U CN 206889797 U CN206889797 U CN 206889797U CN 201720609890 U CN201720609890 U CN 201720609890U CN 206889797 U CN206889797 U CN 206889797U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- electromagnet
- oil cylinder
- swing rod
- revolution
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses one kind to 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 more.Miniature power unit provides pressure oil, ratchet and output axis connection to system；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；Miniature power unit leads to pressure oil by two position and four-way reversing valves to left execution oil cylinder, the right rodless cavity for performing oil cylinder；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, realizes that the rotation of revolution exports more at a slow speed for pole.Small volume of the present utility model, in light weight, the rotation speed of ratchet is easily adjusted, and can realize the rotation of pole at a slow speed.
Description
Technical field
It the utility model is related to technical field of automatic control.Specifically, the utility model is related to one kind more turn round it is electro-hydraulic
Executing agency.
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), there have to valve actuator to be special
Requirement, i.e. valve should not open and close too fast, it usually needs by 3 to the 8 minutes time do not waited, pass through revolution more than 10
Enclose to open and close valve.
Used valve actuator in the market, it is Direct Travel either angie type executing agency mostly, and angie type performs
Mechanism, its maximum output angle are mostly 90 °；Also there is actuator (such as patent turned round more：CN 205824320, patent CN
102720880), but its technical scheme used is also pure electronic output or adds the principle of The gear deceleration by hydraulic motor
To realize more revolutions, for need occasion that pole opens at a slow speed, it is necessary to gear reduction ratio just need very big, certainly will allow and entirely hold
The volume and weight of row device becomes big, can not meet the installing space of valve again.
Utility model content
The purpose of this utility model is that provide one kind turns round electrohydraulic actuator more, meets that needs actuator is at a slow speed and more
Enclose the requirement opened and closed.
To achieve these goals, the utility model provides one kind and turns round electrohydraulic actuator, including small power more
Unit, safety valve, pressure sensor, two position and four-way reversing valves, it is left execution oil cylinder, it is 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 by DC micromotor
Hydraulic pump is driven to provide a system to pressure oil；The safety valve and the pressure sensor are arranged in high-pressure oil passage；It is described micro-
Type power unit is connected with described left one end for performing oil cylinder, right one end for performing oil cylinder by two position and four-way reversing valve respectively
Connect；The left other end for performing oil cylinder, the right other end for performing oil cylinder connect the ratchet swing rod, alternately promote ratchet swing rod
Swung back and forth according to certain angle；The ratchet with it is described output axis connection and together with rotate；The output shaft docks safety valve
Interface；The left electromagnet connects the right ratchet；The right electromagnet connects the left pawl；The left electromagnet, the right side
Electromagnet, left pawl and right ratchet are swung together with the ratchet swing rod；The controller is responsible for controlling all parts to carry out
The action of formulation.
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, realizes the pole rotation outputs turned round at a slow speed 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, right ratchet is set to 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.
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, the velocity of rotation of regulation output shaft are adjusted so as to the operating frequency of adjustable column plug cylinder.
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, 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.
Operation principle of the present utility model is as follows：
When controller receives the order for needing valve opening (rotate counterclockwise), left electromagnet, which obtains, electric to be drawn right ratchet
Rise, right ratchet leaves working position, and 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；It is left perform oil cylinder and it is right perform oil cylinder rodless cavity promote ratchet swing rod according to
Certain angle swings back and forth, so as to drive left pawl to be swung 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 completely, system pressure rapidly rises to the setting value up to pressure sensor, and pressure sensor is signaled to controller, controls
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 obtains, electric to be drawn left pawl
Rise, left pawl leaves working position, and 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；Left execution oil cylinder and the right rod chamber for performing oil cylinder promote ratchet swing rod to come according to certain angle
Backswing is moved, so as to drive right ratchet to be swung 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 completely closes, system pressure
Rapidly rise to the setting value up to pressure sensor, pressure sensor is signaled to controller, and controller sends instruction and allows electricity
Machine stalls, and miniature power unit is stopped, system dead electricity, and right electromagnet resets.Wait instructs next time.
The beneficial effect of the utility model compared with the prior art is：
1, the utility model is driven by the way 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 in light weight, is easy to site layout project valve actuator；
2, the utility model can realize the rotation of pole at a slow speed, and the rotation speed of ratchet can be by the angle of oscillation of ratchet swing rod
Degree, miniature power unit flow and perform the diameter of oil cylinder and adjust, very flexibly；
3, the utility model can play a very good protection to valve, in real time the numerical value of reading pressure sensor, and
Rational critical pressure value is set in control, you can directly control the size of actuator Overload torque；
4, output executing mechanism is used as by the way of ratchet mechanism and plunger case combine, simple in construction, reliable and stable, dimension
Shield is convenient.
Brief description of the drawings
Fig. 1 is the structural representation for more revolution electrohydraulic actuators that the utility model embodiment provides.
Embodiment
Below in conjunction with accompanying drawing, and other technical characteristic above-mentioned to the utility model and advantage carry out clear, intactly retouch
State, it is clear that described embodiment is only section Example of the present utility model, rather than whole embodiments.
The utility model is further detailed below in conjunction with the accompanying drawings.
As shown in figure 1, more revolution electrohydraulic actuators that the utility model embodiment provides are by miniature power unit 1, peace
Full 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 form.Whole action has been controlled by controller
Into.
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, generation one
The right pull-up of ratchet 11, right ratchet 11 are disengaged ratchet certain altitude, leave working position, right ratchet position as indicated by the dashed lines by pulling force
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 be swung back and forth according to certain angle to promote 8 step-by-step movement counterclockwise of ratchet 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 relies 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 be swung back and forth according to certain angle to promote 8 rotated stepwise clockwise of ratchet, finally again by ratchet
8 drive output shafts 7 rotate 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 utility model drives by using the mode of combination of electric and hydraulic, gives full play to high excellent of hydraulic system power density
Gesture, in the case of equal torque, overall volume is small in light weight, is easy to site layout project valve actuator, and can realize extremely slow
The rotation of speed, the rotation speed of ratchet can be by the swing angle of ratchet swing rod, the flow of miniature power unit and execution oil cylinder
Diameter is adjusted, very flexibly.Moreover it is possible to be played a very good protection to valve, pressure sensor is read in real time
Numerical value, and rational critical pressure value is set in control, you can directly control the size of actuator Overload torque；Using spine
Mode that mechanism and plunger case combine is taken turns as output executing mechanism, it is simple in construction, it is reliable and stable, it is easy to maintenance.
Particular embodiments described above, the purpose of this utility model, technical scheme and beneficial effect are carried out to enter one
The detailed description of step, it will be appreciated that the foregoing is only specific embodiment of the utility model, be not used to limit this reality
With new protection domain.Particularly point out, to those skilled in the art, it is all the spirit and principles of the utility model it
It is interior, any modification, equivalent substitution and improvements done etc., it should be included within the scope of protection of the utility model.
Claims (8)
1. a kind of more 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, right one end for performing 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 with it is described output axis connection and together with rotate；The interface of the output shaft docking 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 with together with the ratchet swing rod；The controller is responsible for the action for controlling all parts to be formulated.
2. more 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, work 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. more revolution electrohydraulic actuators according to claim 1, it is characterised in that the left electromagnet and the right spine
Pawl connects, 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 pass through electromagnet
Right ratchet is maintained at working position by the initial tension of spring of itself.
4. more 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. more revolution electrohydraulic actuators according to claim 1, it is characterised in that the safety valve, be for protecting
System so that the operating pressure of system is less than preset pressure value.
6. more revolution electrohydraulic actuators according to claim 1 or 2, it is characterised in that the controller passes through control
Motor speed, the discharge capacity of miniature power unit is adjusted, the operating frequency of ratchet is adjusted so as to the operating frequency of adjustable column plug cylinder,
The velocity of rotation of regulation output shaft.
7. more 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
Swung on wheel swing rod and together with ratchet swing rod.
8. more revolution electrohydraulic actuators according to claim 3, it is characterised in that the rotating shaft and the right side that the left pawl turns
The rotating shaft of ratchet is fixed on the ratchet swing rod, and is swung together with ratchet swing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609890.5U CN206889797U (en) | 2017-05-27 | 2017-05-27 | A kind of more revolution electrohydraulic actuators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609890.5U CN206889797U (en) | 2017-05-27 | 2017-05-27 | A kind of more revolution electrohydraulic actuators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889797U true CN206889797U (en) | 2018-01-16 |
Family
ID=61319556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720609890.5U Withdrawn - After Issue CN206889797U (en) | 2017-05-27 | 2017-05-27 | A kind of more revolution electrohydraulic actuators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013730A (en) * | 2017-05-27 | 2017-08-04 | 杭州诺祥科技有限公司 | A kind of many revolution electrohydraulic actuators |
-
2017
- 2017-05-27 CN CN201720609890.5U patent/CN206889797U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013730A (en) * | 2017-05-27 | 2017-08-04 | 杭州诺祥科技有限公司 | A kind of many revolution electrohydraulic actuators |
| CN107013730B (en) * | 2017-05-27 | 2022-12-23 | 杭州诺祥科技有限公司 | Multi-rotation electro-hydraulic actuating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180116 Effective date of abandoning: 20221223 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180116 Effective date of abandoning: 20221223 |