CN203770807U - Valve actuator - Google Patents
Valve actuator Download PDFInfo
- Publication number
- CN203770807U CN203770807U CN201420169676.9U CN201420169676U CN203770807U CN 203770807 U CN203770807 U CN 203770807U CN 201420169676 U CN201420169676 U CN 201420169676U CN 203770807 U CN203770807 U CN 203770807U
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- CN
- China
- Prior art keywords
- gear
- valve
- magneto
- valve rod
- dependent sensor
- 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.)
- Expired - Fee Related
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model relates to a valve actuator which comprises a valve rod, a valve rod positioner, a driving mechanism of the valve rod and a controller receiving signals of the valve rod positioner to control the driving mechanism. The valve rod positioner is arranged to be a magneto-dependent sensor. The magneto-dependent sensor comprises a sealed shell, a magnification gear magneto-dependent sensor body and a rack, wherein the magnification gear magneto-dependent sensor and the rack are arranged inside the shell. The stroke control precision is improved by increasing the gear magnification of a stroke rod shifting gear. A connecting rod is arranged inside the valve rod. A permanent magnet and an audion placed on the gear are used for inducting the generated signals so as to have feedback control over air flow. The other end of the connecting rod penetrates through the shell to be fixedly connected with the rack. A sealing mechanism is arranged between the connecting rod and the shell. According to the technical scheme, the stroke shifting gear magnifies the permanent magnet and the audion to induct the generated signal speed so as to have feedback control over the air flow of an air source, and the valve actuator has the effects of being higher in precision, wide in application range and easy to operate.
Description
Technical field
The utility model relates to a kind of valve actuator.
Background technique
Valve actuator, comprise that the driving mechanism of valve rod, valve rod positioning work piece, valve rod and receiving valve locators for poles signal are to control the controller of driving mechanism, yet traditional valve actuator, its valve rod positioning work piece and controller are generally whole installation, and be placed near valve rod, under the environment of valve for severe (as liquid or gaseous state), its valve rod positioning work piece and the separable operation of controller, using scope is wide, easily operation.
Summary of the invention
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of effective raising using method, the use separated with controller of valve rod positioning work piece, valve rod positioning work piece feeds back to control centre and carrys out control valve flow, improves precision and flexibility.
For achieving the above object, the utility model provides following technological scheme: a kind of valve actuator, comprise that the driving mechanism of valve rod, valve rod positioning work piece, valve rod and receiving valve locators for poles signal are to control the controller of driving mechanism, the gear amplification speed that described gear-box type magneto-dependent sensor comprises the housing of sealing and is arranged on stroke lever gear displacement in housing improves stroke adjustment precision, described valve rod is provided with connecting rod, on gear the permanent magnetism of putting and triode respond to occurred signal and carry out feedback control tolerance.Technical solutions of the utility model, stroke shifted gear amplifies permanent magnetism and triode is responded to occurred signal velocity feedback control source of the gas tolerance, has precision higher, and using scope is wide, maneuverable effect.
By adopting technique scheme, when valve is operated, it is cylinder action that controller is controlled bleed pressure, valve rod is started, the action of valve rod drivening rod, the magnetosensitive inductor action on connecting rod driven gear, thereby the position to valve rod is responded to, when valve rod reaches desired location, magneto-dependent sensor sends a signal to controller, and controller makes driving mechanism stop driving.Owing to amplifying gear-box sensor, there is seal casinghousing, and be provided with sealing mechanism between connecting rod and housing, therefore, magneto-dependent sensor can be used safely under the environment of severe (as liquid state or gaseous state), and magneto-dependent sensor can be separated with controller, by datawire or long distance wireless, carry out data transmission, controller can be placed under safe environment and use, thereby, technical solutions of the utility model, there is effective raising flexibility and precision, improve the effect in working life.
The utility model further arranges: described driving mechanism is set to pneumatic actuator, described pneumatic actuator comprises cylinder body, the suction tude being connected with cylinder body and steam outlet pipe, on described suction tude and steam outlet pipe, be provided with respectively the first solenoid valve that opens or closes suction tude and steam outlet pipe, described controller is electrically connected to described the first solenoid valve.
By adopting technique scheme, by controller, control, open the first solenoid valve in suction tude, close the first solenoid valve on steam outlet pipe, or close the first solenoid valve in suction tude, open the first solenoid valve on steam outlet pipe, valve rod is operated to open or throttle down.
The utility model further arranges: on described suction tude and steam outlet pipe, be also provided with respectively the second solenoid valve of controlling suction tude and steam outlet pipe tolerance size, described controller is electrically connected to described the second solenoid valve.
By adopting technique scheme, by the tolerance size of the second electromagnetic valve suction tude and steam outlet pipe, to improve the performance accuracy of valve rod.
The utility model further arranges: described magneto-dependent sensor passes described housing by datawire and is connected with described controller, between described datawire and housing, is provided with seal ring.
The utility model further arranges: described valve rod is set to linear stem, and described magneto-dependent sensor is set to gear and amplifies magnetosensitive thread sensor.
By adopting technique scheme, for straight stroke valves such as gate valve, stop valves.
The utility model further arranges: described valve rod is set to rotary motion valve bar, described magnetic sensitive angle sensor.
By adopting technique scheme, for angular travel valves such as butterfly valve, ball valves.
The utility model further arranges: described magneto-dependent sensor is set to magneto-dependent sensor.
By adopting technique scheme, have that volume is little, simple in structure, resolution and degree of accuracy is high, measuring speed is fast, power consumption is little, cost is low, to outstanding features such as Environmental Conditions are less demanding.
The utility model further arranges: described magneto-dependent sensor, between described valve rod and magneto-dependent sensor, be provided with transfer gear train, described transfer gear train comprises the first gear and the second gear, the setting that matches with valve rod of described the first gear, the setting that is meshed with the first gear of described the second gear, and described the second gear matches society certainly with magneto-dependent sensor, described first outside diameter of gear is greater than the external diameter of described the second gear, and described valve rod is provided with limit switch.
By adopting technique scheme, train of gearings is accelerated, the raising of magneto-dependent sensor stroke measurment precision.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one structural drawing;
Fig. 2 is the utility model embodiment two structural drawing;
Fig. 3 is the utility model embodiment linear stem structural drawing;
Fig. 4 is the utility model embodiment rotary motion valve bar structural drawing.
Embodiment
Referring to accompanying drawing 1 or 2, the disclosed valve actuator of the utility model, comprise the driving mechanism 3 of valve rod 1, valve rod positioning work piece 2, valve rod 1 and receive valve rod 1 fixture signal to control the controller 4 of driving mechanism 33, described valve rod positioning work piece 2 is set to magneto-dependent sensor.
The utility model further arranges: described magneto-dependent sensor comprises the housing 21 of sealing and is arranged on the amplification gear magneto-dependent sensor 22 and tooth bar 23 in housing 21, described valve rod 1 is provided with connecting rod 5, described connecting rod one end is fixedly connected with valve rod 1, the described connecting rod the other end is fixedly connected with described amplification gear magneto-dependent sensor 22 through described housing 21, between described connecting rod and housing 21, be provided with sealing mechanism 24, sealing mechanism 24 preferably adopts stuffing box packing.By adopting technique scheme, when valve rod 1 is operated, controller makes driving mechanism 3 actions, valve rod 1 is started, valve rod 1 drivening rod 5 actions, connecting rod 5 drives and amplifies 22 actions of gear magneto-dependent sensor, thereby the position to valve rod 1 is responded to, when valve rod 1 reaches desired location, amplify gear magneto-dependent sensor and send a signal to controller, controller makes driving mechanism 3 stop driving.Owing to amplifying gear magneto-dependent sensor, there is seal casinghousing 21, and be provided with sealing mechanism 24 between connecting rod and housing 21, therefore, amplifying gear magneto-dependent sensor can use safely under the environment of severe (as liquid state or gaseous state), and amplifying gear magneto-dependent sensor can be separated with controller, by datawire or long distance wireless, carry out data transmission, controller can be placed under safe environment to be used, thereby, technical solutions of the utility model, there is effective raising flexibility and precision, improve the effect in working life.
The utility model further arranges: described driving mechanism 3 is set to pneumatic actuator, suction tude 32 and steam outlet pipe 33 that described pneumatic actuator comprises cylinder body 31, is connected with cylinder body 31, on described suction tude 32 and steam outlet pipe 33, be provided with respectively the first solenoid valve 34 that opens or closes suction tude 32 and steam outlet pipe 33, described controller 4 is electrically connected to described the first solenoid valve 34.By adopting technique scheme, by controller, control, open the first solenoid valve 34 in suction tude 32, close the first solenoid valve 34 on steam outlet pipe 33, or close the first solenoid valve 34 in suction tude 32, open the first solenoid valve 34 on steam outlet pipe 33, valve rod 1 is operated to open or throttle down.
The utility model further arranges: on described suction tude 32 and steam outlet pipe 33, be also provided with respectively the second solenoid valve 35 of controlling suction tude 32 and steam outlet pipe 33 tolerance sizes, described controller is electrically connected to described the second solenoid valve 35.By adopting technique scheme, by the second solenoid valve 35, control suction tude 32 big or small with the tolerance of steam outlet pipe 33, to improve the performance accuracy of valve rod 1.
The utility model further arranges: described amplification gear magneto-dependent sensor passes described housing 21 by datawire 6 and is connected with described controller 4, between described datawire 6 and housing 21, is provided with seal ring.
Referring to accompanying drawing 1, the utility model further arranges: described valve rod 1 is set to linear stem 1, described amplification gear magneto-dependent sensor thread sensor.By adopting technique scheme, for straight stroke valves such as gate valve, stop valves.
Referring to accompanying drawing 2, the utility model further arranges: described valve rod 1 is set to rotary motion valve bar 1, described amplification gear magneto-dependent sensor angle transducer.By adopting technique scheme, for angular travel valves such as butterfly valve, ball valves.
Gear amplifies speed magneto-dependent sensor, and the utility model further arranges: described grid formula sensor setting is capacitor grid transducer.By adopting technique scheme, have that volume is little, simple in structure, resolution and degree of accuracy is high, antijamming capability is strong, measuring speed is fast, power consumption is little, cost is low, to outstanding features such as Environmental Conditions are less demanding.
Referring to accompanying drawing 3, 4, wherein accompanying drawing 3 is linear stem, wherein accompanying drawing 4 is rotary motion valve bar, described magneto-dependent sensor 2 is set to magneto-dependent sensor, between described valve rod 1 and magneto-dependent sensor, be provided with transfer gear train, described transfer gear train comprises the first gear 7 and the second gear 8, the setting that matches with valve rod 8 of described the first gear 7, the setting that is meshed with the first gear 1 of described the second gear 8, and described the second gear 8 matches society certainly with magneto-dependent sensor, described the first gear 7 external diameters are greater than the external diameter of described the second gear 8, and described valve rod 1 is provided with limit switch 9.By adopting technique scheme, train of gearings is accelerated, and has improved the precision of magneto-dependent sensor.
Claims (9)
1. a valve actuator, comprises that the driving mechanism of valve rod, valve rod positioning work piece, valve rod and receiving valve locators for poles signal, to control the controller of driving mechanism, is characterized in that: described valve rod positioning work piece is set to magneto-dependent sensor.
2. valve actuator according to claim 1, it is characterized in that: described tooth bar and stroke magneto-dependent sensor comprise the housing of sealing and be arranged on the rack and pinion in housing, described valve rod is provided with connecting rod, described connecting rod one end is fixedly connected with valve rod, the described connecting rod the other end, through described housing and the heavily moving motion of described wheel and rack, is provided with sealing mechanism between described connecting rod and housing.
3. valve actuator according to claim 2, it is characterized in that: described driving mechanism is set to pneumatic actuator, described pneumatic actuator comprises cylinder body, the suction tude being connected with cylinder body and steam outlet pipe, on described suction tude and steam outlet pipe, be provided with respectively the first solenoid valve that opens or closes suction tude and steam outlet pipe, described controller is electrically connected to described the first solenoid valve.
4. valve actuator according to claim 3, is characterized in that: on described suction tude and steam outlet pipe, be also provided with respectively the second solenoid valve of controlling suction tude and steam outlet pipe tolerance size, described controller is electrically connected to described the second solenoid valve.
5. valve actuator according to claim 4, is characterized in that: described gear-box magneto-dependent sensor passes described housing by datawire and is connected with described controller, between described datawire and housing, is provided with seal ring.
6. according to the valve actuator described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: described valve rod is set to linear stem, described gear-box magneto-dependent sensor is made thread sensor.
According to claim 1 or 2 or 3 or 4 or 5 described valve actuator, it is characterized in that: described valve rod is set to rotary motion valve bar described gear-box type angle transducer.
8. according to the valve actuator described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: described gear-box type magneto-dependent sensor.
9. valve actuator according to claim 1, it is characterized in that: it is magneto-dependent sensor that described gear-box arranges gear-box type magneto-dependent sensor, between described valve rod and magneto-dependent sensor, be provided with transfer gear train, described transfer gear train comprises the first gear and the second gear, the setting that matches with valve rod of described the first gear, the setting that is meshed with the first gear of described the second gear, and described the second gear matches society certainly with magneto-dependent sensor, described first outside diameter of gear is greater than the external diameter of described the second gear, and described valve rod is provided with limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169676.9U CN203770807U (en) | 2014-04-09 | 2014-04-09 | Valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169676.9U CN203770807U (en) | 2014-04-09 | 2014-04-09 | Valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770807U true CN203770807U (en) | 2014-08-13 |
Family
ID=51287998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420169676.9U Expired - Fee Related CN203770807U (en) | 2014-04-09 | 2014-04-09 | Valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003733A (en) * | 2015-07-15 | 2015-10-28 | 江苏大学 | Hydraulic actuator for butterfly valve |
| CN110325775A (en) * | 2017-02-20 | 2019-10-11 | 株式会社不二工机 | Motor-driven valve |
-
2014
- 2014-04-09 CN CN201420169676.9U patent/CN203770807U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003733A (en) * | 2015-07-15 | 2015-10-28 | 江苏大学 | Hydraulic actuator for butterfly valve |
| CN110325775A (en) * | 2017-02-20 | 2019-10-11 | 株式会社不二工机 | Motor-driven valve |
| CN110325775B (en) * | 2017-02-20 | 2020-12-22 | 株式会社不二工机 | Electric valve |
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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: 20140813 Termination date: 20160409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |