CN105443850A - Control signal bi-switch valve controller - Google Patents
Control signal bi-switch valve controller Download PDFInfo
- Publication number
- CN105443850A CN105443850A CN201410502864.3A CN201410502864A CN105443850A CN 105443850 A CN105443850 A CN 105443850A CN 201410502864 A CN201410502864 A CN 201410502864A CN 105443850 A CN105443850 A CN 105443850A
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- worm
- worm gear
- control signal
- worm wheel
- lock
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Abstract
The invention relates to a control signal bi-switch valve controller. The control signal bi-switch valve controller comprises a box body and a box cover. A semi-circle gear worm wheel is arranged in the box body in the axial direction and matched with a worm arranged on the upper portion inside the box body rotationally. A control signal bi-switch is arranged on the lower portion inside the box body. A worm wheel shaft hole is formed in the center of the worm wheel. Limiting jackscrews are correspondingly arranged on two sides of the box body. A peripheral non-closed limiting groove is formed in the center of the semi-circle gear worm wheel in the radial direction, and the limiting jackscrews are limited in the peripheral non-closed limiting groove. Cam grooves are formed in two sides of the peripheral non-closed limiting groove. Cams are machined on the cam grooves. The worm wheel shaft is round and provided with a stepped platform, and a cylindrical worm wheel shaft matched with a key groove of the worm wheel shaft hole is inserted in the stepped platform. The machining method and structure are simple, the strength is high, the structure is firm, and the worm wheel and the worm are prevented from being damaged by too large torsion force. Operation is stable, a locking disc is fixedly connected to the worm, a locking lug is arranged on the upper portion of the box body, and a locking disc hole and a locking lug hole are locked through a lock, so that an anti-theft function is realized.
Description
Technical field
The present invention relates to a kind of valve positioner, particularly relate to a kind of 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.And adopting existing Worm gear case to control the output of gas, wet goods resource, the worm screw arbitrarily can opening Worm gear case exports, and often there is the hidden danger of the easy stolen mistake of resource, thus can cause great economic loss and security incident; In order to avoid above-mentioned situation occurs, usually need configuration lock or combination lock to protect aborning, production and user cost can be strengthened so again, operational inconvenience can be brought simultaneously.
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.
Summary of the invention
Technical problem to be solved by this invention 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 anti-theft control signal biswitch valve positioner.
The present invention is achieved by the following technical programs:
A kind of 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, described worm screw is connected with lock collar, described lock collar ring week is provided with lock collar hole, the top of described casing is provided with lock ear, described lock ear is provided with the lock earhole corresponding with lock collar hole site.
The invention has the beneficial effects as follows:
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, with lock, lock collar hole and lock both earholes are locked, effectively prevent worm screw relative to the rotary motion of casing, play antitheft effect, function admirable, application is convenient, safe and reliable.
Accompanying drawing explanation
Fig. 1 is plan structure schematic diagram of the present invention.
Fig. 2 is the main TV structure schematic diagram of half cycle gear-worm gear of the present invention.
Fig. 3 is perspective view of the present invention.
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, 14. worm-wheel shafts, 15. lock collars, 16. lock ears, 17. lock collar holes, 18. lock earholes.
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with accompanying drawing and most preferred embodiment, the present invention is described in further detail.
As shown in Figure 1, the present invention includes 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 14 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.
Described worm screw is connected with lock collar 15, described lock collar ring week is provided with lock collar hole 17, and the top of described casing is provided with lock ear 16, and described lock ear is provided with the lock earhole 18 corresponding with lock collar hole site.
Due to described worm screw being connected with lock collar, described lock collar ring week is provided with lock collar hole, the top of described casing is provided with lock ear, described lock ear is provided with the lock earhole corresponding with lock collar hole site, is locked in lock collar hole and lock both earholes, effectively prevent worm screw relative to the rotary motion of casing with lock, play antitheft effect, function admirable, application is convenient, safe and reliable.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. a 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, described worm screw is connected with lock collar, described lock collar ring week is provided with lock collar hole, the top of described casing is provided with lock ear, described lock ear is provided with the lock earhole corresponding with lock collar hole site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502864.3A CN105443850A (en) | 2014-09-26 | 2014-09-26 | Control signal bi-switch valve controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410502864.3A CN105443850A (en) | 2014-09-26 | 2014-09-26 | Control signal bi-switch valve controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443850A true CN105443850A (en) | 2016-03-30 |
Family
ID=55554363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410502864.3A Pending CN105443850A (en) | 2014-09-26 | 2014-09-26 | Control signal bi-switch valve controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443850A (en) |
-
2014
- 2014-09-26 CN CN201410502864.3A patent/CN105443850A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |