CN203162309U - Pneumatic piston cam deflection regulating valve - Google Patents
Pneumatic piston cam deflection regulating valve Download PDFInfo
- Publication number
- CN203162309U CN203162309U CN 201320177383 CN201320177383U CN203162309U CN 203162309 U CN203162309 U CN 203162309U CN 201320177383 CN201320177383 CN 201320177383 CN 201320177383 U CN201320177383 U CN 201320177383U CN 203162309 U CN203162309 U CN 203162309U
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- China
- Prior art keywords
- valve
- actuator
- pneumatic
- piston
- valve seat
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- Expired - Fee Related
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Abstract
The utility model provides a pneumatic piston cam deflection regulating valve comprising a valve body, a valve seat and the like. A valve core is disposed in the valve body and connected with both a bottom shaft and a stem, the top end of the valve body is connected with a handwheel actuator through a support, and the stem is connected with the lower end of a connecting rod of the handwheel actuator through a transmission sleeve at the upper end of the stem. The pneumatic piston cam deflection regulating valve is characterized by further comprising a pneumatic actuator and a valve seat retaining ring, the valve core is an eccentric spherical cap, the side edge of the valve seat is attached to the valve core and fixedly connected with the inner wall of the valve body through the valve seat retaining ring, and the pneumatic actuator is positioned on the handwheel actuator and fixedly connected with the same. The pneumatic actuator is added to the regulating valve with the handwheel actuator in stead of substituting for the handwheel actuator, so that the pneumatic piston cam deflection regulating valve is capable of regulating with a handwheel and regulating pneumatically as well. When the pneumatic actuator is faulted, medium flow control can be completed by the aid of the handwheel actuator.
Description
Technical field
The utility model relates to valve technology field, relates in particular to a kind of deflection modulating valve.
Background technique
Modulating valve is the device that removes to change rate-of flow in the rate-of flow control system with power operation.Modulating valve is made up of actuator and valve.There are two kinds of manual actuator and electric actuators in common actuator, and manually actuator's troublesome poeration, control are accurately low, and the electric actuator volume is big, quality is big, and using effect is all not ideal enough.Some valve manufacturer uses pneumatic actuator to substitute original manual actuator and electric actuator, improved the control accuracy of modulating valve, but regulating effect is not ideal.And pneumatic actuator breaks down easily, causes modulating valve forfeiture regulating power, influences finishing of medium adjusting work.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of pneumatic piston cam deflection modulating valve, comprise valve body, valve seat, spool, lower shaft, valve rod, support, drive sleeve, handwheel actuator, connecting rod, spool is positioned at valve body and is connected with valve rod with lower shaft respectively, the valve body top is connected with handwheel actuator by support, valve rod is connected with the connecting rod lower end of handwheel actuator by the drive sleeve that is located thereon end, it is characterized in that also comprising pneumatic actuator, the valve seat ring washer, described spool is eccentric spherical crown, valve seat side and described spool are fitted, and fixedly connected with described valve interior wall by the valve seat ring washer, pneumatic execution architecture is positioned in the described handwheel actuator and fixedlys connected with described handwheel actuator.
Described pneumatic actuator comprises housing, end cap, left piston, right piston, tooth bar, output shaft, gear, adjust screw, left piston, right piston is positioned at the cavity that housing and end cap surround, output shaft is positioned at left piston, between the right piston, it is provided with gear, gear respectively with left piston, tooth bar engagement on the right piston, the quantity of adjusting screw is two, adjusting screw for one is positioned on the housing, its underpart is connected with right piston, another is adjusted screw and is positioned on the end cap, its underpart is connected with left piston, fixedlys connected with described handwheel actuator in the housing lower end, and the output shaft lower end is connected with described connecting rod upper end.
The contact segment of described spool and described valve seat is provided with wearing layer, and wearing layer lays respectively at described spool and described valve base surface.
The material of described wearing layer is the Si Tailite alloy.
Described output shaft and described gear are formed in one.
The beneficial effects of the utility model are: add pneumatic actuator at the modulating valve that has handwheel actuator, rather than replace handwheel actuator with pneumatic actuator, make the utility model not only can regulate but also can pneumaticly regulate by handwheel.When breaking down, can use by pneumatic actuator handwheel actuator to finish rate-of flow control.Spool, valve seat adopt eccentric structure, have reduced the prooving of valve seat, have prolonged working life; Add wearing layer on spool, the contact surface of valve seat respectively, wearing layer adopts the Si Tailite alloy, and is wear-resistant, corrosion resistance is strong, has prolonged working life, reduced to produce the possibility of revealing; Use valve seat ring washer regulating valve seat, can guarantee that valve seat contacts with the tight of spool, can effectively cut off medium during complete shut-down, improve control accuracy of the present utility model.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is pneumatic actuator schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Among the figure 1, valve body; 2, valve seat; 3, spool; 4, lower shaft; 5, valve rod; 6, support; 7, drive sleeve; 8, handwheel actuator; 9, connecting rod; 10, valve seat ring washer; 11, pneumatic actuator; 12, housing; 13, end cap; 14, left piston; 15, right piston; 16, tooth bar; 17, output shaft; 18, gear; 19, adjust screw; 20, wearing layer.
As Fig. 1, shown in Figure 2, spool 3 is positioned at valve body 1 and is connected with valve rod 5 with lower shaft 4 respectively, valve body 1 top is connected with handwheel actuator 8 by support 6, valve rod 5 is connected with connecting rod 9 lower ends of handwheel actuator 8 by the drive sleeve 7 that is located thereon end, described spool 3 is eccentric spherical crown, valve seat 2 sides and spool 3 are fitted, and fixedly connected with valve body 1 inwall by valve seat ring washer 10, spool 3 is provided with wearing layer 20 with the contact segment of valve seat 2, wearing layer 20 lays respectively at spool 3 and valve seat 2 surfaces, the material of wearing layer 20 is the Si Tailite alloy, pneumatic execution architecture 11 is positioned in the handwheel actuator 8 and with handwheel actuator 8 fixedlys connected, pneumatic actuator 11 comprises housing 12, end cap 13, left piston 14, right piston 5, tooth bar 16, output shaft 17, gear 18, adjust screw 19, left piston 14, right piston 15 is positioned at the cavity that housing 12 and end cap 13 surround, output shaft 17 is positioned at left piston 14, between the right piston 15, it is provided with gear 18, gear 18 respectively with left piston 14, tooth bar 16 engagements on the right piston 5, the quantity of adjusting screw 19 is two, adjusting screw 19 for one is positioned on the housing 12, its underpart is connected with right piston 15, another is adjusted screw 19 and is positioned on the end cap 13, its underpart is connected with left piston 14, output shaft 17 and gear 18 are formed in one, fixedly connected with handwheel actuator 8 in housing 12 lower ends, output shaft 17 lower ends are connected with connecting rod 9 upper ends.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (5)
1. pneumatic piston cam deflection modulating valve, comprise valve body (1), valve seat (2), spool (3), lower shaft (4), valve rod (5), support (6), drive sleeve (7), handwheel actuator (8), connecting rod (9), spool (3) is positioned at valve body (1) and is connected with valve rod (5) with lower shaft (4) respectively, valve body (1) top is connected with handwheel actuator (8) by support (6), valve rod (5) is connected with connecting rod (9) lower end of handwheel actuator (8) by the drive sleeve (7) that is located thereon end, it is characterized in that also comprising pneumatic actuator (11), valve seat ring washer (10), described spool (3) is eccentric spherical crown, valve seat (2) side and described spool (3) are fitted, and fixedly connected with described valve body (1) inwall by valve seat ring washer (10), pneumatic execution architecture is positioned in the described handwheel actuator (8) and with described handwheel actuator (8) fixedlys connected.
2. a kind of pneumatic piston cam deflection modulating valve as claimed in claim 1, it is characterized in that described pneumatic actuator (11) comprises housing (12), end cap (13), left piston (14), right piston (15), tooth bar (16), output shaft (17), gear (18), adjust screw (19), left piston (14), right piston (15) is positioned at the cavity that housing (12) and end cap (13) surround, output shaft (17) is positioned at left piston (14), between the right piston (15), it is provided with gear (18), gear (18) respectively with left piston (14), tooth bar (16) engagement on the right piston (15), the quantity of adjusting screw (19) is two, adjusting screw (19) for one is positioned on the housing (12), its underpart is connected with right piston (15), another is adjusted screw (19) and is positioned on the end cap (13), its underpart is connected with left piston (14), fixedly connected with described handwheel actuator (8) in housing (12) lower end, output shaft (17) lower end is connected with described connecting rod (9) upper end.
3. a kind of pneumatic piston cam deflection modulating valve as claimed in claim 1 or 2, it is characterized in that described spool (3) and the contact segment of described valve seat (2) are provided with wearing layer (20), wearing layer (20) lays respectively at described spool (3) and described valve seat (2) surface.
4. a kind of pneumatic piston cam deflection modulating valve as claimed in claim 3, the material that it is characterized in that described wearing layer (20) is the Si Tailite alloy.
5. a kind of pneumatic piston cam deflection modulating valve as claimed in claim 2 is characterized in that described output shaft (17) and described gear (18) are formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177383 CN203162309U (en) | 2013-04-10 | 2013-04-10 | Pneumatic piston cam deflection regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177383 CN203162309U (en) | 2013-04-10 | 2013-04-10 | Pneumatic piston cam deflection regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162309U true CN203162309U (en) | 2013-08-28 |
Family
ID=49023492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320177383 Expired - Fee Related CN203162309U (en) | 2013-04-10 | 2013-04-10 | Pneumatic piston cam deflection regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440048A (en) * | 2019-09-05 | 2019-11-12 | 上海巨良阀门集团有限公司 | Total travel adjusts pneumatic operated valve |
| CN113339542A (en) * | 2021-05-24 | 2021-09-03 | 浙江永盛科技股份有限公司 | Forward and reverse interchangeable cam bending valve and installation and debugging method thereof |
-
2013
- 2013-04-10 CN CN 201320177383 patent/CN203162309U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440048A (en) * | 2019-09-05 | 2019-11-12 | 上海巨良阀门集团有限公司 | Total travel adjusts pneumatic operated valve |
| CN113339542A (en) * | 2021-05-24 | 2021-09-03 | 浙江永盛科技股份有限公司 | Forward and reverse interchangeable cam bending valve and installation and debugging method thereof |
| CN113339542B (en) * | 2021-05-24 | 2023-03-07 | 浙江永盛科技股份有限公司 | Forward and reverse interchangeable cam bending valve and installation and debugging method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20140410 |