CN201121758Y - Partially slewing valve driving unit - Google Patents
Partially slewing valve driving unit Download PDFInfo
- Publication number
- CN201121758Y CN201121758Y CNU2007200421186U CN200720042118U CN201121758Y CN 201121758 Y CN201121758 Y CN 201121758Y CN U2007200421186 U CNU2007200421186 U CN U2007200421186U CN 200720042118 U CN200720042118 U CN 200720042118U CN 201121758 Y CN201121758 Y CN 201121758Y
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- CN
- China
- Prior art keywords
- main shaft
- worm gear
- worm
- worm screw
- partially
- 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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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a partial revolving-valve driving device, which comprises a fork slider mechanism, a spring return mechanism and a transmission mechanism, wherein, the transmission mechanism consists of an electromagnetic clutch, a connection disc, a worm gear, a worm screw and a main shaft; the main shaft is supported inside a box body of the transmission mechanism; one end of the main shaft is provided with the worm gear, the connection disc and the electromagnetic clutch in turn; a bearing is arranged between the worm gear and the main shaft; the electromagnetic clutch is firmly coupled with the worm gear with a screw through the connection disc; the worm screw that is matched with the worm gear is installed inside the box body of the transmission mechanism and extends outside the box body; the other end of the main shaft is milled with tooth shapes; the lower part of a piston rod of the spring return mechanism is milled with racks that are engaged with the tooth shapes on the main shaft. The partial revolving-valve driving device has the advantages of simple structure, less investment, less land occupation area, reliable operation and rapid closing during the power failure.
Description
The utility model relates to a kind of drive unit, particularly relates to a kind of part revolution valve actuator.
Background technique
Use drive unit at present at partially slewing valves such as butterfly valve, ball valves, Electric actuator, Pneumatic actuator, Hydraulic actuator etc. are arranged, when system's dead electricity, can realize automatically reset Pneumatic actuator and the Hydraulic actuator that the device of band spring reset is arranged, but Pneumatic actuator must attach cover source of the gas, pneumatic triple piece and a pipeline, Hydraulic actuator must attach equipment such as hydraulic station, the device structure complexity is invested expensively, and it is big to take up room.
Summary of the invention
Can realize automatically reset drive unit device structure complexity in order to overcome existing butterfly valve or ball valve when system's dead electricity, invest expensive, deficiency such as it is big to take up room, the utility model provides a kind of part to turn round and uses valve actuator.
The technological scheme that its technical problem that solves the utility model adopts is that valve actuator is used in a kind of part revolution, comprises shift fork slide-block mechanism, spring reset mechanism and driving mechanism.Driving mechanism is made up of magnetic clutch, land, worm gear, worm screw, main shaft, main shaft supporting is in the driving mechanism casing, one end of main shaft is equipped with worm gear, land, magnetic clutch successively, between worm gear and main shaft bearing is housed, magnetic clutch is screwed by land and is connected on the worm gear, the worm screw that cooperates with worm gear is installed in the driving mechanism casing and stretches out casing, the other end periphery of main shaft is milled with profile of tooth, and the underpart of the piston rod of spring reset mechanism is milled with the tooth bar that is meshed with profile of tooth on the main shaft.
Worm screw can drive with handwheel, also drives with pneumatic motor.
The beneficial effects of the utility model are that product structure is simple, and less investment is taken up an area of for a short time, and reliable in action can realize quick closedown during dead electricity.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the tectonic maps of present embodiment;
Fig. 2 is the left view of Fig. 1
Among the figure: 1. driving mechanism casing; 2. worm screw; 3. worm gear; 4. bearing; 5. magnetic clutch; 6. land; 7. main shaft; 8. piston rod; 9. shift fork slide-block mechanism casing; 10. shift fork; 11. valve shaft; 12. slide block; 13. spring reset mechanism casing; 14. spring; 15. piston.
Embodiment
As Fig. 1, shown in 2, a kind of part revolution valve actuator, comprise the shift fork slide-block mechanism, spring reset mechanism and driving mechanism, driving mechanism is by magnetic clutch 5, land 6, worm gear 3, worm screw 2, main shaft 7 is formed, main shaft 7 is supported in the driving mechanism casing 1, one end of main shaft 7 is equipped with worm gear 3 successively, land 6, magnetic clutch 5,7 on worm gear 3 and main shaft are equipped with bearing 4, magnetic clutch 5 is screwed by land 6 and is connected on the worm gear 3, the worm screw 2 that cooperates with worm gear 3 is installed in the driving mechanism casing 1 and stretches out casing, and the other end periphery of main shaft 7 is milled with profile of tooth; Shift fork 10 is bearing on the shift fork slide-block mechanism casing 9, and valve shaft 11 and shift fork 10 are connected by key, and piston rod 8 is equipped with slide block 12 at the middle part, and slide block 12 can slide in the opening slot of shift fork; Spring reset mechanism casing 13 is fixedly connected with shift fork slide-block mechanism casing 9, in spring 14, piston 15 and piston rod 8 are housed, piston rod 8 right-hand members are milled with the tooth bar that is meshed with profile of tooth on the main shaft 7.Worm screw can drive with handwheel, also drives with pneumatic motor.
Operating principle: when valve when open the complete shut-down position, magnetic clutch 5, magnetic clutch 5 is in engagement with main shaft 7, rotate handwheel this moment or start pneumatic motor and drive worm screw 2, worm screw 2 drives worm gear 3 and rotates, because worm gear 3 is by screw and land 6, magnetic clutch 5 links together, so worm gear 3 drives magnetic clutch 5 and rotates, magnetic clutch 5 drives main shaft 7 and rotates, engagement by the tooth bar on tooth on the main shaft 7 and the piston rod 8 drives piston rod 8 moving linearly left, and piston rod 8 drives shift fork 10 and is rotated counterclockwise, simultaneously pressure spring 14, shift fork 10 links to each other with valve shaft 11 by key, thereby drives valve opening.
When under accident conditions, the magnetic clutch dead electricity, worm gear 3, magnetic clutch 5 are in disengaged condition with main shaft 7 at this moment, compressed spring 14 resets fast in opening process, thereby drive piston rod 8 moving linearly to the right, piston rod 8 drives shift fork 10 and turns clockwise, thereby makes the valve quick closedown.
Claims (3)
1, a kind of driving unit of partially slewing valve, comprise shift fork slide-block mechanism and spring reset mechanism, it is characterized in that: also have a driving mechanism, driving mechanism is by magnetic clutch, land, worm gear, worm screw, main shaft is formed, main shaft supporting is in casing, one end of main shaft is equipped with worm gear successively, transition disc, magnetic clutch, between worm gear and main shaft bearing is housed, magnetic clutch is screwed by transition disc and is connected on the worm gear, the worm screw that cooperates with worm gear is installed in the casing and stretches out casing, the other end periphery of main shaft is milled with profile of tooth, and the underpart of the piston rod of described spring reset mechanism is milled with the tooth bar that is meshed with profile of tooth on the main shaft.
2, driving unit of partially slewing valve according to claim 1 is characterized in that: described worm screw drives with handwheel.
3, driving unit of partially slewing valve according to claim 1 is characterized in that: described worm screw drives with pneumatic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200421186U CN201121758Y (en) | 2007-11-08 | 2007-11-08 | Partially slewing valve driving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200421186U CN201121758Y (en) | 2007-11-08 | 2007-11-08 | Partially slewing valve driving unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121758Y true CN201121758Y (en) | 2008-09-24 |
Family
ID=40008986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200421186U Expired - Fee Related CN201121758Y (en) | 2007-11-08 | 2007-11-08 | Partially slewing valve driving unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121758Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759061A (en) * | 2014-01-20 | 2014-04-30 | 石特阀门股份有限公司 | Novel electric quick valve closing device |
-
2007
- 2007-11-08 CN CNU2007200421186U patent/CN201121758Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759061A (en) * | 2014-01-20 | 2014-04-30 | 石特阀门股份有限公司 | Novel electric quick valve closing device |
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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: 20080924 Termination date: 20161108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |