CN203604777U - Valve hydraulic actuator provided with fault feedback structure - Google Patents
Valve hydraulic actuator provided with fault feedback structure Download PDFInfo
- Publication number
- CN203604777U CN203604777U CN201320749519.0U CN201320749519U CN203604777U CN 203604777 U CN203604777 U CN 203604777U CN 201320749519 U CN201320749519 U CN 201320749519U CN 203604777 U CN203604777 U CN 203604777U
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- way valve
- piston
- valve
- fault feedback
- hydraulic actuator
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- Withdrawn - After Issue
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Abstract
The utility model discloses a valve hydraulic actuator provided with a fault feedback structure. The valve hydraulic actuator provided with the fault feedback structure comprises a power cylinder, an actuating mechanism and the fault feedback structure. The power cylinder comprises a lower flange, a cylinder body, a piston and an upper flange. The actuating mechanism comprises a gear shaft and a gear rack arranged on the side face of the piston, and the gear shaft penetrates through the cylinder body and is meshed with the gear rack. The fault feedback structure comprises a first check valve, a second check valve, a first pressure sensor and a second pressure sensor. The second check valve and the first check valve are arranged at the upper end and the lower end of the piston respectively, and the second check valve and the first check valve are communicated with each other. The first check valve can prevent media from flowing to a lower oil chamber from a hole in the piston, and the second check valve can prevent media from flowing to an upper oil chamber from the hole in the piston. The second pressure sensor is arranged on the upper flange and is communicated with the upper oil chamber. The first pressure sensor is arranged on the lower flange and is communicated with the lower oil chamber. According to the valve hydraulic actuator provided with the fault feedback structure, abnormal signals in the hydraulic executing process of a valve can be fed back to a control console in time, and executing capacity of the hydraulic actuator is improved obviously.
Description
Technical field
The utility model relates to a kind of valve actuator, especially a kind of valve hydraulic actuator.
Background technique
In Morden Pipe Network engineering, a large amount of valves that adopt are as control unit, and a lot of occasions requirements are accomplished by the unlatching of operating console telecontrol valve or closed, conventionally adopt hydraulic actuator to drive.The hydraulic actuator of prior art generally comprises ram, actuator, actuator comprises gear shaft and is arranged on the tooth bar of piston side, moved by ram driven plunger, rotated by rack drives and its meshed gears axle of piston side, drive valve opening or close by gear shaft.This structure meets the remote control operation of valve substantially, but cannot realize valve switch in the time that valve chance is stifled stuck time, there is no signal feed back to operating console.
Summary of the invention
The utility model is for the deficiencies in the prior art, propose a kind of when valve meet stifled stuck cannot realize valve switch time, timely by signal feed back the valve hydraulic actuator that is provided with fault feedback arrangement to operating console.
The utility model is achieved through the following technical solutions technical goal.
The valve hydraulic actuator that is provided with fault feedback arrangement, comprises ram, actuator; Described ram comprises lower flange, cylinder body, piston, upper flange; Described actuator comprises gear shaft and is arranged on the tooth bar of piston side; Described gear shaft runs through cylinder body and engages with tooth bar; Described upper flange is provided with the upper filler opening being communicated with upper oil cavitie; Described lower flange is provided with the lower filler opening being communicated with lower oil cavitie; Its improvements are: also comprise fault feedback arrangement; Described fault feedback arrangement comprises the first one-way valve, the second one-way valve, the first pressure transducer and the second pressure transducer; Described the second one-way valve and the first one-way valve are separately positioned on the two ends up and down of piston, and are connected by the hole of axially running through piston; Under normal working, described the first one-way valve can stop in the hole of medium from piston and flows to lower oil cavitie; Described the second one-way valve can stop in the hole of medium from piston and flows to upper oil cavitie; Described the second pressure transducer is arranged on upper flange, is communicated with upper oil cavitie; Described the first pressure transducer is arranged on lower flange, is communicated with lower oil cavitie.
In said structure, on described lower flange end face, be provided with cylindric lower convex platform with the first one-way valve port opposite position; Described lower convex platform diameter is less than the first one-way valve port diameter, can insert in the first unidirectional valve opening, opens the first one-way valve.
In said structure, on described upper flange end face, be provided with cylindric convex platform with the second one-way valve port opposite position; Described convex platform diameter is less than the second one-way valve port diameter, can insert in the second unidirectional valve opening, opens the second one-way valve.
In said structure, described ram also comprises Limit screw; Described Limit screw is threaded connection on upper flange, and its end is stretched in upper oil cavitie, carries out spacing to piston.
In said structure, on described Limit screw end face, be provided with cylindric convex platform with the second one-way valve port opposite position; Described convex platform diameter is less than the second one-way valve port diameter, can insert in the second unidirectional valve opening, opens the second one-way valve.
The utility model compared with prior art, has following good effect:
1. meet stifled stuckly cannot realize valve switch time when valve, the pressure of lower oil cavitie or upper oil cavitie increases, pressure transducer in time by signal feed back to operating console, operating console judges processing in time according to signal, has significantly improved the executive capability of hydraulic actuator.
2, the lower flange of ram is or/and upper flange is provided with the boss that can insert in unidirectional valve opening, like this, when valve normally moves, when piston moves to upper and lower two ends, the boss on lower flange or upper flange, open one-way valve, avoid in the time that piston moves to upper and lower two ends, one-way valve is not opened, and causes that the pressure of lower oil cavitie or upper oil cavitie increases, pressure transducer in time by signal feed back to operating console, cause operating console to take for to be the stuck pressure that causes lower oil cavitie or upper oil cavitie of valve to increase.
3, the upper flange of ram is provided with Limit screw, and the effect of regulating valve pivotal position is played in the position of adjusting piston.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
The valve hydraulic actuator that is provided with fault feedback arrangement shown in the drawings, comprises ram 1, actuator 2, fault feedback arrangement 3; Ram 1 comprises lower flange 1.2, cylinder body 1.3, piston 1.5, upper flange 1.8; Actuator 2 comprises gear shaft 2.1 and is arranged on the tooth bar 2.2 of piston 1.5 sides; Gear shaft 2.1 runs through cylinder body 1.3 and engages with tooth bar 2.2; Upper flange 1.8 is provided with the upper filler opening 1.9 being communicated with upper oil cavitie 1.13; Lower flange 1.2 is provided with the lower filler opening 1.1 being communicated with lower oil cavitie 1.15.
On lower flange 1.2 end faces, be provided with cylindric lower convex platform 7 with the first one-way valve 3.1 aperture opposite positions; Lower convex platform 7 diameters are less than the first one-way valve 3.1 orifice diameter, can insert in the first one-way valve 3.1 holes, open the first one-way valve 3.1.
In the present embodiment, on the upper flange 1.8 of ram 1, be also provided with Limit screw 1.10, Limit screw 1.10 is threaded connection on upper flange 1.8, and its end is stretched in upper oil cavitie 1.13, carries out spacing to piston 1.5; On Limit screw 1.10 end faces, be provided with cylindric convex platform 6 with the second one-way valve 3.2 aperture opposite positions; Convex platform 6 diameters are less than the second one-way valve 3.2 orifice diameter, can insert in the second one-way valve 3.2 holes, open the second one-way valve 3.2.
In the time that medium is inputted from upper filler opening 1.9, piston 1.5 moves down, and promotes gear shaft 2.1 and clockwise rotates, and in the time that valve chance is blocked up or be stuck, upper oil cavitie 1.13 pressure increase, the second pressure transducer 3.3 is by signal feed back to operating console, and operating console judges processing in time according to signal.
In the time that medium is inputted from lower filler opening 1.1, piston 1.5 moves up, and promotes gear shaft 2.1 and rotates counterclockwise, and in the time that valve chance is blocked up or be stuck, lower oil cavitie 1.15 pressure increase, the first pressure transducer 3.4 is by signal feed back to operating console, and operating console judges processing in time according to signal.
When valve normally moves, when piston 1.5 moves to lower end, lower convex platform 7 diameters on lower flange 1.2 insert in the first one-way valve 3.1 holes, open the first one-way valve 3.1; When piston 1.5 moves to upper end, the convex platform 6 on Limit screw 1.10 end faces inserts in the second one-way valve 3.2 holes, opens the second one-way valve 3.2.
Certainly,, if there is no Limit screw 1.10 on the upper flange 1.8 of ram 1, on upper flange 1.8 end faces, be provided with cylindric convex platform 6 with the second one-way valve 3.2 aperture opposite positions; Convex platform 6 diameters are less than the second one-way valve 3.2 orifice diameter, can insert in the second one-way valve 3.2 holes, open the second one-way valve 3.2.
Claims (5)
1. be provided with a valve hydraulic actuator for fault feedback arrangement, comprise ram (1), actuator (2); Described ram (1) comprises lower flange (1.2), cylinder body (1.3), piston (1.5), upper flange (1.8); Described actuator (2) comprises gear shaft (2.1) and is arranged on the tooth bar (2.2) of piston (1.5) side; Described gear shaft (2.1) runs through cylinder body (1.3) and engages with tooth bar (2.2); Described upper flange (1.8) is provided with the upper filler opening (1.9) being communicated with upper oil cavitie (1.13); Described lower flange (1.2) is provided with the lower filler opening (1.1) being communicated with lower oil cavitie (1.15); It is characterized in that: also comprise fault feedback arrangement (3); Described fault feedback arrangement (3) comprises the first one-way valve (3.1), the second one-way valve (3.2), the first pressure transducer (3.4) and the second pressure transducer (3.3); Described the second one-way valve (3.2) and the first one-way valve (3.1) are separately positioned on the two ends up and down of piston (1.5), and are connected by the hole (3.5) of axially running through piston (1.5); Under normal working, described the first one-way valve (3.1) can stop in the hole (3.5) of medium from piston (1.5) and flows to lower oil cavitie (1.15); Described the second one-way valve (3.2) can stop in the hole (3.5) of medium from piston (1.5) and flows to upper oil cavitie (1.13); It is upper that described the second pressure transducer (3.3) is arranged on upper flange (1.8), is communicated with upper oil cavitie (1.13); It is upper that described the first pressure transducer (3.4) is arranged on lower flange (1.2), is communicated with lower oil cavitie (1.15).
2. the valve hydraulic actuator that is provided with fault feedback arrangement according to claim 1, is characterized in that: on described lower flange (1.2) end face, be provided with cylindric lower convex platform (7) with the first one-way valve (3.1) aperture opposite position; Described lower convex platform (7) diameter is less than the first one-way valve (3.1) orifice diameter, can insert in the first one-way valve (3.1) hole, opens the first one-way valve (3.1).
3. the valve hydraulic actuator that is provided with fault feedback arrangement according to claim 1 and 2, is characterized in that: on described upper flange (1.8) end face, be provided with cylindric convex platform (6) with the second one-way valve (3.2) aperture opposite position; Described convex platform (6) diameter is less than the second one-way valve (3.2) orifice diameter, can insert in the second one-way valve (3.2) hole, opens the second one-way valve (3.2).
4. the valve hydraulic actuator that is provided with fault feedback arrangement according to claim 1 and 2, is characterized in that: described ram (1) also comprises Limit screw (1.10); Described Limit screw (1.10) is threaded connection at upper flange (1.8) upper, and its end is stretched in upper oil cavitie (1.13), carries out spacing to piston (1.5).
5. the valve hydraulic actuator that is provided with fault feedback arrangement according to claim 4, is characterized in that: on described Limit screw (1.10) end face, be provided with cylindric convex platform (6) with the second one-way valve (3.2) aperture opposite position; Described convex platform (6) diameter is less than the second one-way valve (3.2) orifice diameter, can insert in the second one-way valve (3.2) hole, opens the second one-way valve (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749519.0U CN203604777U (en) | 2013-11-25 | 2013-11-25 | Valve hydraulic actuator provided with fault feedback structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749519.0U CN203604777U (en) | 2013-11-25 | 2013-11-25 | Valve hydraulic actuator provided with fault feedback structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203604777U true CN203604777U (en) | 2014-05-21 |
Family
ID=50717451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749519.0U Withdrawn - After Issue CN203604777U (en) | 2013-11-25 | 2013-11-25 | Valve hydraulic actuator provided with fault feedback structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203604777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791143A (en) * | 2013-11-25 | 2014-05-14 | 江苏远望仪器有限公司 | Valve hydraulic actuator with fault feedback structure |
| KR20190122774A (en) * | 2017-06-30 | 2019-10-30 | 가부시키가이샤 후지킨 | Fluid driven valve |
-
2013
- 2013-11-25 CN CN201320749519.0U patent/CN203604777U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791143A (en) * | 2013-11-25 | 2014-05-14 | 江苏远望仪器有限公司 | Valve hydraulic actuator with fault feedback structure |
| CN103791143B (en) * | 2013-11-25 | 2016-05-25 | 江苏远望仪器有限公司 | Be provided with the valve hydraulic actuator of fault feedback arrangement |
| KR20190122774A (en) * | 2017-06-30 | 2019-10-30 | 가부시키가이샤 후지킨 | Fluid driven valve |
| CN110475999A (en) * | 2017-06-30 | 2019-11-19 | 株式会社富士金 | Fluid drives valve |
| JPWO2019004071A1 (en) * | 2017-06-30 | 2020-05-07 | 株式会社フジキン | Fluid driven valve |
| CN110475999B (en) * | 2017-06-30 | 2021-04-06 | 株式会社富士金 | Fluid actuated valve |
| KR102241057B1 (en) * | 2017-06-30 | 2021-04-16 | 가부시키가이샤 후지킨 | Fluid driven valve |
| JP7136469B2 (en) | 2017-06-30 | 2022-09-13 | 株式会社フジキン | fluid driven valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140521 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |