CN201145084Y - Fluid-control valve switching speed control device - Google Patents
Fluid-control valve switching speed control device Download PDFInfo
- Publication number
- CN201145084Y CN201145084Y CNU2007201852860U CN200720185286U CN201145084Y CN 201145084 Y CN201145084 Y CN 201145084Y CN U2007201852860 U CNU2007201852860 U CN U2007201852860U CN 200720185286 U CN200720185286 U CN 200720185286U CN 201145084 Y CN201145084 Y CN 201145084Y
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- China
- Prior art keywords
- valve
- cam
- valve rod
- axial motion
- control device
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Abstract
A hydraulically controlled valve switching speed control device has a cam, and a throttle valve which is connected with the cam and has a valve rod making axial motion. An axis line of the valve rod making axial motion is in the radius vector direction of the cam, and the external end of the valve rod making axial motion abuts against the cam. According to the utility model, as the axial line of the valve rod is in the radius vector direction of the cam and the external end of the valve rod abuts against the cam, the motion characteristic of the valve rod is under the control of the contour curve of the cam. According to the requirements of operating conditions, the cam can be designed and manufactured to have the contour curve meeting the requirements of the operating conditions. When the cam is used, the cam is assembled on a valve shaft of a rotary valve of a hydraulic part to make the axial line of the cam shaft and that of the valve shaft be on the same straight line, and then the throttle valve provided by the utility model is connected in series onto the hydraulic control pipe of a hydraulic actuator driving the valve to open or close. The utility model is used to control the switching speed of the valve. The hydraulically controlled valve switching speed control device which is applied to the rotary valve of the hydraulic part can control the switching speed of the valve and meet the requirements on the operating conditions of the switching speed of a usage occasion.
Description
Technical field
The utility model relates to the match equipment that the open and close of a kind of hydraulic control part turning valve are used, particularly a kind of control gear of hydraulic control part turning valve switching speed.
Background technique
The part turning valve is that spool revolves the valve that the angle that turn 90 degrees realizes that valve opens or closes, the part turning valve has valves such as butterfly valve, ball valve, stopcock, the part turning valve can be used the Kai Heguan of hydraulic driving valve, fluid-control valve has the drive unit of valve switch, the drive unit of valve switch has hydraulic actuators such as oil cylinder, oil hydraulic motor, the speed of fluid-control valve switch is subjected to the flow control of hydraulic medium, the flow that usually is hydraulic medium is big, switching speed is fast, and the flow P cock speed of hydraulic medium is slow.In the prior art, the flow of hydraulic medium that drives the switch of fluid-control valve is constant, is with constant speed switch during valve switch.Use occasion at some valve, needs according to operating mode, require valve with varying speed switch, as when the throttle down, water hammer appears when preventing throttle down, the leading portion of valve closing faster closing velocity close, back segment at valve closing will be closed with the closing velocity that slows down gradually, the speed that makes current in the valve is little by little by fast vanishing, anti-sealing by higher flow velocity hastily during vanishing the kinetic energy of water change into static energy fast and the water hammer that produces destroys valve and pipeline, when Open valve, needs according to operating mode, sometimes also need in order to make fluid-control valve adaptation condition needs well, need the switching speed of control fluid-control valve with the speed Open valve that changes.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose a kind of hydraulic control valve switch speed control device that can control hydraulic control part turning valve switching speed.
The utility model is realized with the following method.
Hydraulic control valve switch speed control device has the throttle valve of cam and the valve rod axial motion that links to each other with cam, and the valve rod axis of the throttle valve of valve rod axial motion is in the radius vector direction of cam, and the valve rod outer end of the throttle valve of valve rod axial motion is against on the cam.
Cam is the disc-shaped component that rotates and have the variation radius vector around camshaft, valve rod axis of the present utility model is in the radius vector direction of cam, the valve rod outer end is against on the cam, the kinetic characteristic of valve rod is controlled by cam profile curve, need by operating mode, can design and produce out cam with the profilogram that meets the operating mode needs.
During use, cam is installed on the valve shaft of hydraulic control part turning valve, allows the axis of the axis of camshaft and valve shaft on same straight line, throttle valve of the present utility model is connected on the hydraulic control pipeline of hydraulic actuator of actuating valve gate switch.The switching speed that is used for control valve.The utility model is applied on hydraulic control part turning valve, and the switching speed of may command valve satisfies the operating mode needs of use occasion to switching speed.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 cuts open schematic representation according to the master office of looking that a kind of external cam fluid-control valve that invention scheme of the present utility model proposes opens or closes speed control unit;
Fig. 2 is that schematic representation cuts open in the master office of looking of external cam hydraulic control valve switch speed control device;
Fig. 3 is that schematic representation cuts open in the master office of looking that the cam ring fluid-control valve opens or closes speed control unit;
Fig. 4 is that schematic representation cuts open in the master office of looking of cam ring hydraulic control valve switch speed control device.
Embodiment
Among Fig. 1, hydraulic control valve switch speed control device has the throttle valve that has Returnning spring 2 of external cam 1 and the valve rod axial motion that links to each other with external cam, throttle valve has hydraulic fluid port 3, external cam has the axis hole 4 that matches with the valve shaft of fluid-control valve, valve rod 5 axis of the throttle valve of valve rod axial motion are in the radius vector direction of external cam, and the valve rod outer end roller 6 of the throttle valve of valve rod axial motion is against on the side of external cam.
Above-mentioned hydraulic control valve switch speed control device only is connected with the throttle valve that has Returnning spring of valve rod axial motion in a side of external cam, this hydraulic control valve switch speed control device can only be done unidirectional control to opening or closing of valve, or the opening speed of control valve, or the closing velocity of control valve.For opening speed that can control valve again can control valve closing velocity, the throttle valve that has Returnning spring that the valve rod axial motion can all be arranged in the external cam both sides of hydraulic control valve switch speed control device, the throttle valve that has Returnning spring of the valve rod axial motion of one side matches with external cam and is used for the opening speed of control valve, and the throttle valve that has Returnning spring of the valve rod axial motion of opposite side matches with external cam and is used for the closing velocity of control valve.
Among Fig. 2, external cam 7 both sides of hydraulic control valve switch speed control device have the throttle valve that has Returnning spring 8,9 of valve rod axial motion respectively.
The cam of above-mentioned hydraulic control valve switch speed control device is an external cam.The cam of control valve switch speed control device also can be a cam ring, and the throttle valve of the valve rod axial motion that matches with cam ring can be the throttle valve that does not have Returnning spring of valve rod axial motion.
Among Fig. 3, the cam of hydraulic control valve switch speed control device is a cam ring 10, is connected with the throttle valve that does not have Returnning spring 11 of valve rod axial motion in a side of cam ring.
Among Fig. 4, the cam of hydraulic control valve switch speed control device is a cam ring 12, is connected with the throttle valve that does not have Returnning spring 13,14 of valve rod axial motion respectively in the both sides of cam ring.
Above-mentioned throttle valve can be an one-way throttle valve, also can be bidirectional throttling valve.
Claims (9)
1. hydraulic control valve switch speed control device, it is characterized in that: the throttle valve that cam and the valve rod axial motion that links to each other with cam are arranged, the valve rod axis of the throttle valve of valve rod axial motion is in the radius vector direction of cam, and the valve rod outer end of the throttle valve of valve rod axial motion is against on the cam.
2. by the described hydraulic control valve switch speed control device of claim 1, it is characterized in that: described cam is an external cam, and the throttle valve of valve rod axial motion is the throttle valve that has Returnning spring of valve rod axial motion.
3. by the described hydraulic control valve switch speed control device of claim 1, it is characterized in that: described cam is a cam ring, and the throttle valve of valve rod axial motion is the throttle valve that does not have Returnning spring of valve rod axial motion.
4. by the described hydraulic control valve switch speed control device of claim 2, it is characterized in that: a side of described external cam has the throttle valve that has Returnning spring of valve rod axial motion.
5. by the described hydraulic control valve switch speed control device of claim 2, it is characterized in that: the both sides of described external cam have the throttle valve that has Returnning spring of valve rod axial motion respectively.
6. by the described hydraulic control valve switch speed control device of claim 3, it is characterized in that: a side of described cam ring has the throttle valve that does not have Returnning spring of valve rod axial motion.
7. by the described hydraulic control valve switch speed control device of claim 3, it is characterized in that: the both sides of described cam ring have the throttle valve that does not have Returnning spring of valve rod axial motion respectively.
8. by claim 1,2,3,4,5,6 or 7 described hydraulic control valve switch speed control devices, it is characterized in that: described throttle valve is an one-way throttle valve.
9. by claim 1,2,3,4,5,6 or 7 described hydraulic control valve switch speed control devices, it is characterized in that: described throttle valve is a bidirectional throttling valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201852860U CN201145084Y (en) | 2007-12-28 | 2007-12-28 | Fluid-control valve switching speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201852860U CN201145084Y (en) | 2007-12-28 | 2007-12-28 | Fluid-control valve switching speed control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145084Y true CN201145084Y (en) | 2008-11-05 |
Family
ID=40081961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201852860U Expired - Fee Related CN201145084Y (en) | 2007-12-28 | 2007-12-28 | Fluid-control valve switching speed control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145084Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518829A (en) * | 2011-12-12 | 2012-06-27 | 航天长征化学工程股份有限公司 | Ball valve with low-wear seal surface |
| CN107558118A (en) * | 2016-06-30 | 2018-01-09 | 三星电子株式会社 | Washing machine |
| CN108194432A (en) * | 2017-12-29 | 2018-06-22 | 北京航天发射技术研究所 | A kind of solid-rocket Erecting System and perpendicular method |
| CN108759562A (en) * | 2018-04-24 | 2018-11-06 | 北京航天发射技术研究所 | A kind of large-tonnage solid-rocket quickly plays perpendicular method and device |
-
2007
- 2007-12-28 CN CNU2007201852860U patent/CN201145084Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518829A (en) * | 2011-12-12 | 2012-06-27 | 航天长征化学工程股份有限公司 | Ball valve with low-wear seal surface |
| CN107558118A (en) * | 2016-06-30 | 2018-01-09 | 三星电子株式会社 | Washing machine |
| CN107558118B (en) * | 2016-06-30 | 2021-11-05 | 三星电子株式会社 | Washing machine |
| CN108194432A (en) * | 2017-12-29 | 2018-06-22 | 北京航天发射技术研究所 | A kind of solid-rocket Erecting System and perpendicular method |
| CN108759562A (en) * | 2018-04-24 | 2018-11-06 | 北京航天发射技术研究所 | A kind of large-tonnage solid-rocket quickly plays perpendicular method and device |
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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: 20081105 Termination date: 20100128 |