CN103335167A - Valve limit switch with potentiometers - Google Patents
Valve limit switch with potentiometers Download PDFInfo
- Publication number
- CN103335167A CN103335167A CN2013102336205A CN201310233620A CN103335167A CN 103335167 A CN103335167 A CN 103335167A CN 2013102336205 A CN2013102336205 A CN 2013102336205A CN 201310233620 A CN201310233620 A CN 201310233620A CN 103335167 A CN103335167 A CN 103335167A
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- China
- Prior art keywords
- gear
- driving gear
- potentiometer
- valve
- transmission gear
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- 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.)
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a valve limit switch with potentiometers, which comprises a valve shaft lever and a housing, wherein a first potentiometer, a second potentiometer, a first transmission gear, a second transmission gear and a third transmission gear are arranged in the housing; the first potentiometer is provided with a first localization gear; the second potentiometer is provided with a second localization gear; the valve shaft lever penetrates the housing; a driving gear is arranged at the end part, in the housing, of the valve shaft lever; the first transmission gear is meshed with the driving gear, the second transmission gear and the third transmission gear respectively; the second transmission gear is meshed with the first localization gear; the third transmission gear is meshed with the second localization gear; the semi-diameters of the first transmission gear, the second transmission gear and the first localization gear are the same; the semi-diameters of the third transmission gear and the second localization gear are the same; the semi-diameter of the first transmission gear is 10 times of that of the third transmission gear. The valve limit switch can detect the opening degree of a valve accurately.
Description
Technical field
The present invention relates to the valve limit switch with potentiometer.
Background technique
The valve limit switch is to detect a kind of field instrument of valve state in the automatic control system.But the valve limit switch is not very accurate to the aperture detection of valve at present.
Summary of the invention
The object of the present invention is to provide a kind of valve limit switch with potentiometer, it can accurately detect the aperture of valve.
For achieving the above object, technological scheme of the present invention is a kind of valve limit switch with potentiometer of design, comprise valve shaft lever and housing, be provided with first potentiometer with the first location gear, second potentiometer, first driving gear, second driving gear and the 3rd driving gear with the second location gear in the housing; Valve shaft lever runs through housing, and valve shaft lever is provided with actuation gear in the end that it is positioned at housing; First driving gear is meshing with actuation gear, second driving gear, the 3rd driving gear respectively; Second driving gear and the first location gear mesh, the 3rd driving gear and the second location gear mesh; The radius of actuation gear, first driving gear, second driving gear, the first location gear is identical; The radius of the 3rd driving gear, the second location gear is identical; The first driving gear radius is 10 times of the 3rd driving gear radius.
Advantage of the present invention and beneficial effect are: a kind of valve limit switch with potentiometer is provided, and it can accurately detect the aperture of valve.
The valve position of valve is rotated and can be driven the valve shaft lever rotation, and then drives the actuation gear rotation, and actuation gear drives first driving gear again and rotates, and first driving gear drives second driving gear respectively, second driving gear rotates; Second driving gear drives the first location gear and rotates, and detects the valve seat opening state by first potentiometer; The 3rd driving gear drives the second location gear and rotates, and detects the valve seat opening state by first potentiometer; Because the first driving gear radius is 10 times of the 3rd driving gear radius, then first driving gear rotates a circle, the 3rd driving gear will rotate 10 circles, so first potentiometer detects the valve seat opening state by the rotation angle of its first location gear, and second potentiometer is more accurate to the valve seat opening status detection like this by the rotation number of turns detection valve seat opening state of its second location gear.
Description of drawings
Fig. 1 is schematic representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only are used for technological scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
The concrete technological scheme of implementing of the present invention is:
As shown in Figure 1, a kind of valve limit switch with potentiometer, comprise valve shaft lever 1 and housing 8, be provided with first potentiometer, second potentiometer with the second location gear 3, first driving gear 4, second driving gear 5 and the 3rd driving gear 6 with the first location gear 2 in the housing 8; Valve shaft lever 1 runs through housing 8, and valve shaft lever 1 is provided with actuation gear 7 in its end that is positioned at housing 8; First driving gear 4 is meshing with actuation gear 7, second driving gear 5, the 3rd driving gear 6 respectively; Second driving gear 5 and the first location gear 2 are meshing, and the 3rd driving gear 6 and the second location gear 3 are meshing; The radius of actuation gear 7, first driving gear 4, second driving gear 5, the first location gear 2 is identical; The radius of the 3rd driving gear 6, the second location gear 3 is identical; First driving gear, 4 radiuses are 10 times of the 3rd driving gear 6 radiuses.
The valve position of valve is rotated and can be driven valve shaft lever 1 rotation, and then drives actuation gear 7 rotations, and actuation gear 7 drives first driving gear 4 again and rotates, and first driving gear 4 drives second driving gear 5 respectively, second driving gear 5 rotates; Second driving gear 5 drives the first location gear 2 and rotates, and detects the valve seat opening state by first potentiometer; The 3rd driving gear 6 drives the second location gear 3 and rotates, and detects the valve seat opening state by first potentiometer; Because first driving gear, 4 radiuses are 10 times of the 3rd driving gear 6 radiuses, then first driving gear 4 rotates a circle, the 3rd driving gear 6 will rotate 10 circles, so first potentiometer detects the valve seat opening state by the rotation angle of its first location gear 2, and second potentiometer is more accurate to the valve seat opening status detection like this by the rotation number of turns detection valve seat opening state of its second location gear 3.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; 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. be with the valve limit switch of potentiometer, it is characterized in that, comprise valve shaft lever and housing, be provided with first potentiometer with the first location gear, second potentiometer, first driving gear, second driving gear and the 3rd driving gear with the second location gear in the housing; Valve shaft lever runs through housing, and valve shaft lever is provided with actuation gear in the end that it is positioned at housing; First driving gear is meshing with actuation gear, second driving gear, the 3rd driving gear respectively; Second driving gear and the first location gear mesh, the 3rd driving gear and the second location gear mesh; The radius of actuation gear, first driving gear, second driving gear, the first location gear is identical; The radius of the 3rd driving gear, the second location gear is identical; The first driving gear radius is 10 times of the 3rd driving gear radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102336205A CN103335167A (en) | 2013-06-13 | 2013-06-13 | Valve limit switch with potentiometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102336205A CN103335167A (en) | 2013-06-13 | 2013-06-13 | Valve limit switch with potentiometers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103335167A true CN103335167A (en) | 2013-10-02 |
Family
ID=49243375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102336205A Pending CN103335167A (en) | 2013-06-13 | 2013-06-13 | Valve limit switch with potentiometers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103335167A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469706A (en) * | 2019-09-24 | 2019-11-19 | 浙江澳翔自控科技有限公司 | A kind of small-size electric actuator |
| CN112303331A (en) * | 2020-11-16 | 2021-02-02 | 航天科工哈尔滨风华有限公司电站设备分公司 | Gas switch fixing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0597159A1 (en) * | 1992-11-10 | 1994-05-18 | Societe Civile Cofinagri | Control device for an electrically actuated valve and its application |
| CN1563767A (en) * | 2004-03-30 | 2005-01-12 | 孟锋 | Electric valve controller |
| CN201902672U (en) * | 2010-11-29 | 2011-07-20 | 天津百利二通机械有限公司 | Stroke control opening degree indicating mechanism |
| CN102252130A (en) * | 2011-06-27 | 2011-11-23 | 天津市津达执行器有限公司 | Electric actuator valve position detection device based on dual potentiometers |
| CN203348686U (en) * | 2013-05-23 | 2013-12-18 | 北京岳能科技有限公司 | Valve driver |
| CN203516958U (en) * | 2013-09-10 | 2014-04-02 | 鞍山拜尔自控有限公司 | Position feedback structure of locator |
-
2013
- 2013-06-13 CN CN2013102336205A patent/CN103335167A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0597159A1 (en) * | 1992-11-10 | 1994-05-18 | Societe Civile Cofinagri | Control device for an electrically actuated valve and its application |
| CN1563767A (en) * | 2004-03-30 | 2005-01-12 | 孟锋 | Electric valve controller |
| CN201902672U (en) * | 2010-11-29 | 2011-07-20 | 天津百利二通机械有限公司 | Stroke control opening degree indicating mechanism |
| CN102252130A (en) * | 2011-06-27 | 2011-11-23 | 天津市津达执行器有限公司 | Electric actuator valve position detection device based on dual potentiometers |
| CN203348686U (en) * | 2013-05-23 | 2013-12-18 | 北京岳能科技有限公司 | Valve driver |
| CN203516958U (en) * | 2013-09-10 | 2014-04-02 | 鞍山拜尔自控有限公司 | Position feedback structure of locator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469706A (en) * | 2019-09-24 | 2019-11-19 | 浙江澳翔自控科技有限公司 | A kind of small-size electric actuator |
| CN112303331A (en) * | 2020-11-16 | 2021-02-02 | 航天科工哈尔滨风华有限公司电站设备分公司 | Gas switch fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131002 |