CN204176111U - A kind of being convenient to is processed and stable control signal biswitch valve positioner - Google Patents
A kind of being convenient to is processed and stable control signal biswitch valve positioner Download PDFInfo
- Publication number
- CN204176111U CN204176111U CN201420557608.XU CN201420557608U CN204176111U CN 204176111 U CN204176111 U CN 204176111U CN 201420557608 U CN201420557608 U CN 201420557608U CN 204176111 U CN204176111 U CN 204176111U
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- CN
- China
- Prior art keywords
- worm gear
- worm
- casing
- control signal
- axis hole
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of being convenient to and processes and stable control signal biswitch valve positioner, comprises casing, case lid, half cycle gear-worm gear is axially arranged with in casing, the worm screw be provided with casing internal upper part is rotatably assorted, in described casing, bottom is provided with control signal biswitch, described worm gear center is provided with worm gear axis hole, it is characterized in that, described casing both sides correspondence is provided with spacing jackscrew, the radial central authorities of described half cycle gear-worm gear are provided with ring week non-close restraining groove, described spacing jackscrew is spacing in all non-close restraining grooves of ring, the all non-close restraining groove both sides of described ring are provided with cam path, described cam path is processed with the cam coordinated with control signal biswitch, described worm gear axis hole is circular, and be provided with ladder platform in worm gear axis hole central position, described ladder platform is inserted with the cylinder worm-wheel shaft coordinated with worm gear axis hole keyway, processing method and structure simple, intensity is high, stabilized structure, and prevent worm gear and worm screw from destroying because torsion is excessive, stable.
Description
Technical field
The utility model relates to a kind of valve positioner, particularly relates to a kind of being convenient to and processes and stable control signal biswitch valve positioner.
Background technique
At present, valve positioner is applied widely in industrial production and engineering construction, plays very important effect.How to improve the worm gear in valve positioner casing, performance that worm screw is rotatably assorted, adopting control signal switch directly to coordinate with worm gear is one of the key link.Existing valve positioner control signal switch is with worm and gear for indirectly to coordinate, and control signal switch is arranged at valve positioner case lid position usually, so not only make control signal switch and worm gear precision not good enough, affect valve positioner application performance; Also can strengthen the overall volume of casing, the space taken when installing and using is larger, the inconvenience easily cause installation, using; Meanwhile, in production, consumptive material is many, strengthens cost of production.Moreover existing control signal switch is regular tap, control valve controller will be difficult to when breaking down and normally run.
Existing our company have developed a kind of valve positioner, and it comprises casing, case lid; Half cycle gear-worm gear is axially arranged with in described casing; the worm screw be provided with casing internal upper part is rotatably assorted; in described casing, bottom is provided with control signal biswitch; its half cycle gear-worm gear external frame is processed with the cam matched with control signal biswitch; this kind of processing mode is worm gear external frame welding processing; its intensity difference; and processed complex; structure built on the sand; and casing both sides correspondence is provided with for controlling the set screw opened, close; this set screw only acts on the control mechanism of control signal biswitch, lacks protection for half cycle gear-worm gear inside.And worm gear axis hole is square hole, and worm-wheel shaft front end is also set to coordinate with square hole square, and when controlling torsion and being excessive, worm-wheel shaft drives worm gear and the Power output of worm screw, and worm gear and worm screw are damaged, and valve positioner operation is destroyed.
Model utility content
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art; there is provided a kind of half cycle gear-worm gear processing structure simple; the motion of protection half cycle gear-worm gear; Protective valve door controller, what prevent worm gear and worm screw from occurring because torsion is excessive to destroy is convenient to process and stable control signal biswitch valve positioner.
The utility model is achieved by the following technical programs:
Be convenient to process and a stable control signal biswitch valve positioner, this valve positioner comprises casing, case lid, half cycle gear-worm gear is axially arranged with in described casing, the worm screw be provided with casing internal upper part is rotatably assorted, in described casing, bottom is provided with control signal biswitch, described worm gear center is provided with worm gear axis hole, it is characterized in that, described casing both sides correspondence is provided with spacing jackscrew, the radial central authorities of described half cycle gear-worm gear are provided with ring week non-close restraining groove, described spacing jackscrew is spacing in all non-close restraining grooves of ring, the all non-close restraining groove both sides of described ring are provided with cam path, described cam path is processed with the cam coordinated with control signal biswitch, described worm gear axis hole is circular, and be provided with ladder platform in worm gear axis hole central position, described ladder platform is inserted with the cylinder worm-wheel shaft coordinated with worm gear axis hole keyway.
The beneficial effects of the utility model are:
Owing to being provided with ring week non-close restraining groove in the radial central authorities of half cycle gear-worm gear, casing both sides correspondence is provided with spacing jackscrew, described spacing jackscrew is spacing in all non-close restraining grooves of ring, make to obtain position limitation protection when the limit position of half cycle gear-worm gear motion, the all non-close restraining groove both sides of described ring are provided with cam path, described cam path is processed with the cam coordinated with control signal biswitch, simple lathe car is used to go out ring week non-close restraining groove in the central authorities of half cycle gear-worm gear, the cam path with cam is gone out at the direct car in ring week non-close restraining groove both sides, processing method and structure simple, intensity is high, stabilized structure, because described worm gear axis hole is circular, and be provided with ladder platform in worm gear axis hole central position, described ladder platform is inserted with the cylinder worm-wheel shaft coordinated with worm gear axis hole keyway, when torsion exports excessive, the key be located in worm gear axis hole and worm-wheel shaft keyway is first destroyed, thus protect valve positioner, prevent worm gear and worm screw from destroying because torsion is excessive, make it stable.
Accompanying drawing explanation
Fig. 1 is plan structure schematic diagram of the present utility model.
Fig. 2 is the main TV structure schematic diagram of half cycle gear-worm gear of the present utility model.
Fig. 3 is perspective view of the present utility model.
In figure: 1. casing, 2. worm screw, 3. half cycle gear, 4. cam path, 5. half cycle gear-worm gear, the 6. all non-close restraining grooves of ring, 7. control signal biswitch, 8. cam, 9. spacing jackscrew, 10. worm-wheel shaft, 11. keyways, 12. case lids, 13. ladder platforms.
Embodiment
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with accompanying drawing and most preferred embodiment, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises casing 1, case lid 12; Half cycle gear-worm gear 5 is axially arranged with in described casing, the worm screw 2 be provided with casing internal upper part is rotatably assorted, in described casing, bottom is provided with control signal biswitch 7, described worm gear center is provided with worm gear axis hole 10, described casing both sides correspondence is provided with spacing jackscrew 9, the radial central authorities of described half cycle gear-worm gear are provided with all non-close restraining grooves 6 of ring, described spacing jackscrew is spacing in all non-close restraining grooves of ring, the all non-close restraining groove both sides of described ring are provided with cam path 4, described cam path are processed with the cam 8 coordinated with control signal biswitch.In this example, spacing jackscrew penetrates box house from casing both sides by screw and coordinates with ring week non-close restraining groove, described worm gear axis hole is circular, and be provided with ladder platform 13 in worm gear axis hole central position, described ladder platform is inserted with the cylinder worm-wheel shaft 10 coordinated with worm gear axis hole keyway.This spacing worm-wheel shaft position of routine scala media halfpace, makes it move more steady.
Owing to being provided with ring week non-close restraining groove in the radial central authorities of half cycle gear-worm gear, casing both sides correspondence is provided with spacing jackscrew, described spacing jackscrew is spacing in all non-close restraining grooves of ring, make to obtain position limitation protection during the limit position moved at the half cycle gear 3 of half cycle gear-worm gear, the all non-close restraining groove both sides of described ring are provided with cam path, described cam path is processed with the cam coordinated with control signal biswitch, simple lathe car is used to go out ring week non-close restraining groove in the central authorities of half cycle gear-worm gear, the cam path with cam is gone out at the direct car in ring week non-close restraining groove both sides, processing method and structure simple, intensity is high, stabilized structure.
Because described worm gear axis hole is circular; and be provided with ladder platform in worm gear axis hole central position; described ladder platform is inserted with the cylinder worm-wheel shaft coordinated with worm gear axis hole keyway; when torsion exports excessive; the key be located in worm gear axis hole keyway 11 and in worm-wheel shaft keyway is first destroyed; thus protect valve positioner, prevent worm gear and worm screw from destroying because torsion is excessive, make it stable.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. be convenient to process and a stable control signal biswitch valve positioner, this valve positioner comprises casing, case lid, half cycle gear-worm gear is axially arranged with in described casing, the worm screw be provided with casing internal upper part is rotatably assorted, in described casing, bottom is provided with control signal biswitch, described worm gear center is provided with worm gear axis hole, it is characterized in that, described casing both sides correspondence is provided with spacing jackscrew, the radial central authorities of described half cycle gear-worm gear are provided with ring week non-close restraining groove, described spacing jackscrew is spacing in all non-close restraining grooves of ring, the all non-close restraining groove both sides of described ring are provided with cam path, described cam path is processed with the cam coordinated with control signal biswitch, described worm gear axis hole is circular, and be provided with ladder platform in worm gear axis hole central position, described ladder platform is inserted with the cylinder worm-wheel shaft coordinated with worm gear axis hole keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557608.XU CN204176111U (en) | 2014-09-26 | 2014-09-26 | A kind of being convenient to is processed and stable control signal biswitch valve positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557608.XU CN204176111U (en) | 2014-09-26 | 2014-09-26 | A kind of being convenient to is processed and stable control signal biswitch valve positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204176111U true CN204176111U (en) | 2015-02-25 |
Family
ID=52564921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557608.XU Expired - Fee Related CN204176111U (en) | 2014-09-26 | 2014-09-26 | A kind of being convenient to is processed and stable control signal biswitch valve positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204176111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508691A (en) * | 2014-09-26 | 2016-04-20 | 天津联工阀门有限公司 | Control signal dual-switch valve controller convenient to machine and steady in operation |
-
2014
- 2014-09-26 CN CN201420557608.XU patent/CN204176111U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508691A (en) * | 2014-09-26 | 2016-04-20 | 天津联工阀门有限公司 | Control signal dual-switch valve controller convenient to machine and steady in operation |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20160926 |