CN106855147A - A kind of pneumatic linear actuator for controlling valve rod - Google Patents
A kind of pneumatic linear actuator for controlling valve rod Download PDFInfo
- Publication number
- CN106855147A CN106855147A CN201510901406.1A CN201510901406A CN106855147A CN 106855147 A CN106855147 A CN 106855147A CN 201510901406 A CN201510901406 A CN 201510901406A CN 106855147 A CN106855147 A CN 106855147A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- cylinder
- valve rod
- cap
- Prior art date
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1225—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston with a plurality of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
- F15B15/125—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type of the curved-cylinder type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of pneumatic linear actuator for controlling valve rod, the piston is arranged in cylinder body, the two ends of the cylinder body are provided with cylinder cap, the piston is provided with two piston boits, one end face circle centre position of described two piston boits is connected by connecting rod, the other end circle centre position of described two piston boits is separately installed with piston rod, described two piston rods are each passed through the cylinder cap for being installed on cylinder body two ends, the end face of the cylinder cap is provided with suction nozzle, exhaust nozzle, the outside of the cylinder cap is provided with dust cap, the dust cap on cylinder body, the cylinder body, piston, the center line of piston rod is circular arc line.Technical purpose of the invention is to provide a kind of simple structure, single cylinder double piston-rod, more reliable, small volume, a kind of pneumatic linear actuator for controlling valve rod easy for installation, this pneumatic linear actuator more save energy and manufacturing expense.
Description
Technical field
The present invention relates to valve field, particularly a kind of pneumatic linear actuator for controlling valve rod.
Background technology
Valve is the control unit in fluid delivery system, with cut-off, regulation, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.
For the valve of fluid control systems, the various valves used from simplest stop valve to extremely complex robot control system(RCS), its kind and specification are quite various.Valve can be used to control the flowing of all kinds fluids such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium.
The control of valve can use various kinds of drive, such as manually, electrically, surge, pneumatic, turbine, electromagnetic driven, electromagnetism surge, electro-hydraulic dynamic, air-or liquid-operated, spur gear, bevel gear driving；Can be in the presence of pressure, temperature or other forms transducing signal, acted by predetermined requirement, or be independent of transducing signal and be simply turned on and off, valve by drive or automechanism lift opening and closing element, slide, swing or gyration, so as to change the size of its flow area to realize its control function.
In the control of valve, pneumatic control valve is a kind of convenience, reliable, environmentally friendly pneumatic control mechanism, and existing valve pneumatic control uses two pneumatic cylinders mostly, so that the controlling organization of valve is complex, and the piston rod in pneumatic cylinder can only make linear running, so that the opening and closing of valve is not linear enough, the change in torque of control valve is more complicated.
The content of the invention
For the deficiency that above-mentioned Valve controlling is present, technical purpose of the invention is to provide a kind of simple structure, single cylinder double piston-rod, more reliable, small volume, a kind of pneumatic linear actuator for controlling valve rod easy for installation, this pneumatic linear actuator more save energy and manufacturing expense.
The present invention is achieved through the following technical solutions：
A kind of pneumatic linear actuator for controlling valve rod, the pneumatic linear actuator for controlling valve rod includes cylinder body, piston, cylinder cap, the piston is arranged in cylinder body, the two ends of the cylinder body are provided with cylinder cap, the piston is provided with two piston boits, one end face circle centre position of described two piston boits is connected by connecting rod, the other end circle centre position of described two piston boits is separately installed with piston rod, described two piston rods are each passed through the cylinder cap for being installed on cylinder body two ends, the end face of the cylinder cap is provided with suction nozzle, exhaust nozzle, the outside of the cylinder cap is provided with dust cap, the dust cap on cylinder body, the cylinder body, piston, the center line of piston rod is circular arc line.
Further, the outside of the cylinder body is provided with support frame, and support frame as described above is arranged on valve rod frame, and the cylinder body is that the material of the cylinder body is silico-aluminum.
Further, the end face of two piston boits of the piston is in a certain angle, and the center of circle of described two piston boit end faces is respectively equipped with piston seal on same circular arc on the face of cylinder of described two piston boits.
Further, the section of the piston rod is circle, and the piston rod is connected on piston by flange or semi-ring.
Further, the dust cap is provided with valve rod hole and suction nozzle, exhaust nozzle, and dust-proof cushion is provided between the dust cap and cylinder body.
The beneficial effects of the invention are as follows:
1st, it is set to concentric circular arc by by the center line of piston, piston rod, cylinder body so that the motion state of piston rod is to be rotated around the center of circle so that power of the piston rod on valve rod is acted on can be completely converted into the moment of torsion for causing that valve rod is rotated, more save energy；
2nd, two piston boits are set to by by piston, piston rod are installed on each piston boit so that by a cylinder body and piston just can control valve rod come back rotation so that pneumatic cylinder need installing space it is smaller, the structure of pneumatic cylinder is simpler, relatively reliable；
3rd, it is directly installed on the support frame of valve rod frame by by cylinder body, so that the installation of pneumatic cylinder is more easy, by the dust cap being provided with cylinder body two ends, so that dust less enters cylinder interior, so that the reliability of pneumatic cylinder is higher, and dust-proof cushion on dust cap can play a part of to clean the dust on piston rod.
Brief description of the drawings
Fig. 1 is the structural representation of invention.
Marked in figure：1 is cylinder body, 2 is piston, 3 is piston rod, 4 is cylinder cap, 5 is dust cap, 6 is piston seal.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
A kind of pneumatic linear actuator for controlling valve rod as shown in Figure 1, the pneumatic linear actuator for controlling valve rod includes：Cylinder body 1, piston 2, piston rod 3, cylinder cap 4, dust cap 5, piston seal 6, the piston 2 is arranged in cylinder body 1, the two ends of the cylinder body 1 are provided with cylinder cap 4, the piston 2 is provided with two piston boits, one end face circle centre position of described two piston boits is connected by connecting rod, the other end circle centre position of described two piston boits is separately installed with piston rod 3, described two piston rods 3 are each passed through the cylinder cap 4 for being installed on the two ends of cylinder body 1, the end face of the cylinder cap 4 is provided with suction nozzle, exhaust nozzle, the outside of the cylinder cap 4 is provided with dust cap 5, the dust cap 5 on cylinder body 1, the cylinder body 1, piston 2, the center line of piston rod 3 is circular arc line；
Wherein, concentric circular arc is set to by by the center line of piston 2, piston rod 3, cylinder body 4, so that the motion state of piston rod is to be rotated around the center of circle, enable that power of the piston rod on valve rod is acted on is completely converted into the moment of torsion for causing that valve rod is rotated, more save energy, piston 2, piston rod 3, the determination of the central angle of the center line of cylinder body 4 are the rotational angle according to valve, two designs of piston boit it is also possible that the sealing of piston more preferably, forms two seals.
The outside of the cylinder body 1 is provided with support frame, and support frame as described above is arranged on valve rod frame, and the cylinder body 1 is silico-aluminum for the material of the cylinder body 1；
Wherein, it is arranged on the support frame of valve rod frame by by cylinder body 1 so that the installation of pneumatic cylinder is more easy, and the installation footprint of pneumatic cylinder is smaller, by the way that the material of cylinder body 1 is set into silico-aluminum so that the overall weight of pneumatic cylinder mitigates, intensity is strengthened.
The end face of two piston boits of the piston 2 is in a certain angle, and the center of circle of described two piston boit end faces is respectively equipped with piston seal on same circular arc on the face of cylinder of described two piston boits；
Wherein, by by the end face of piston my two piston boits be set to it is in a certain angle make it easier to that piston rod is installed, be provided with piston seal by two piston boits so that the gas leakage of pneumatic cylinder is less, in hgher efficiency.
The section of the piston rod 3 is circle, and the piston rod 3 is connected on the piston 2 by flange or semi-ring.
Wherein, it is set to circle by by piston rod 3 so that the sealing of piston rod 3 is easier, the form that piston rod 3 is connected with piston 2 is a lot, is connected preferably by flange, the intensity of flange connection is more preferable with rigidity.
The dust cap 5 is provided with valve rod hole and suction nozzle, exhaust nozzle, and dust-proof cushion is provided between the dust cap 5 and cylinder body 1.
Wherein, can conveniently be installed with suction nozzle, exhaust nozzle by being provided with valve rod hole on dust cap 5, be provided with dust-proof cushion by between dust cap 5 and cylinder body 1 so that the dust-proof effect of dust cap 5 is more preferable.
Claims (5)
1. a kind of pneumatic linear actuator for controlling valve rod, the pneumatic linear actuator for controlling valve rod includes cylinder body（1）, piston（2）, cylinder cap（4）, the piston（2）Installed in cylinder body（1）It is interior, the cylinder body（1）Two ends cylinder cap is installed（4）, it is characterised in that the piston（2）Two piston boits are provided with, an end face circle centre position of described two piston boits is connected by connecting rod, and the other end circle centre position of described two piston boits is separately installed with piston rod（3）, described two piston rods（3）It is each passed through and is installed on cylinder body（1）The cylinder cap at two ends（4）, the cylinder cap（4）End face be provided with suction nozzle, exhaust nozzle, the cylinder cap（4）Outside dust cap is installed（5）, the dust cap（5）Installed in cylinder body（1）On, the cylinder body（1）, piston（2）, piston rod（3）Center line be circular arc line.
2. the pneumatic linear actuator for controlling valve rod according to claim 1, it is characterised in that the cylinder body（1）Outside support frame is installed, support frame as described above is arranged on valve rod frame, the cylinder body（1）It is the cylinder body（1）Material be silico-aluminum.
3. the pneumatic linear actuator for controlling valve rod according to claim 1, it is characterised in that the piston（2）Two piston boits end face it is in a certain angle, the center of circle of described two piston boit end faces is respectively equipped with piston seal on same circular arc on the face of cylinder of described two piston boits.
4. the pneumatic linear actuator for controlling valve rod according to claim 1, it is characterised in that the piston rod（3）Section for circle, the piston rod（3）Piston is connected to by flange or semi-ring（2）On.
5. the pneumatic linear actuator for controlling valve rod according to claim 1, it is characterised in that the dust cap（5）It is provided with valve rod hole and suction nozzle, exhaust nozzle, the dust cap（5）With cylinder body（1）Between be provided with dust-proof cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901406.1A CN106855147A (en) | 2015-12-09 | 2015-12-09 | A kind of pneumatic linear actuator for controlling valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510901406.1A CN106855147A (en) | 2015-12-09 | 2015-12-09 | A kind of pneumatic linear actuator for controlling valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106855147A true CN106855147A (en) | 2017-06-16 |
Family
ID=59131498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510901406.1A Pending CN106855147A (en) | 2015-12-09 | 2015-12-09 | A kind of pneumatic linear actuator for controlling valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106855147A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340441A (en) * | 2018-11-06 | 2019-02-15 | 中国船舶重工集团公司第七〇九研究所 | Steam drives steam isolating certainly |
| CN110645222A (en) * | 2019-08-29 | 2020-01-03 | 南京理工大学 | Novel flexible air-magnetic driving actuator |
| WO2021143221A1 (en) * | 2020-01-14 | 2021-07-22 | 浙江石化阀门有限公司 | Metal-sealed unfurled valve and driving device therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58604A (en) * | 1981-06-23 | 1983-01-05 | Tlv Co Ltd | Actuator |
| DE3613752A1 (en) * | 1986-04-23 | 1987-10-29 | Bernhard Mitschinski | Ring cylinder for swivel movements |
| CN1106501A (en) * | 1994-08-15 | 1995-08-09 | 陈振勤 | Universal oscillating piston internal combustion engine |
| CN1361348A (en) * | 2000-12-26 | 2002-07-31 | 邹东时 | Annular-cylinder multiple-piston engine |
| CN202735101U (en) * | 2012-09-07 | 2013-02-13 | 天津市华荣气动液压成套设备有限公司 | Center assembly used in wheel set |
| CN205207860U (en) * | 2015-12-09 | 2016-05-04 | 王翔 | A pneumatic cylinder for control valve rod |
-
2015
- 2015-12-09 CN CN201510901406.1A patent/CN106855147A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58604A (en) * | 1981-06-23 | 1983-01-05 | Tlv Co Ltd | Actuator |
| DE3613752A1 (en) * | 1986-04-23 | 1987-10-29 | Bernhard Mitschinski | Ring cylinder for swivel movements |
| CN1106501A (en) * | 1994-08-15 | 1995-08-09 | 陈振勤 | Universal oscillating piston internal combustion engine |
| CN1361348A (en) * | 2000-12-26 | 2002-07-31 | 邹东时 | Annular-cylinder multiple-piston engine |
| CN202735101U (en) * | 2012-09-07 | 2013-02-13 | 天津市华荣气动液压成套设备有限公司 | Center assembly used in wheel set |
| CN205207860U (en) * | 2015-12-09 | 2016-05-04 | 王翔 | A pneumatic cylinder for control valve rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340441A (en) * | 2018-11-06 | 2019-02-15 | 中国船舶重工集团公司第七〇九研究所 | Steam drives steam isolating certainly |
| CN110645222A (en) * | 2019-08-29 | 2020-01-03 | 南京理工大学 | Novel flexible air-magnetic driving actuator |
| WO2021143221A1 (en) * | 2020-01-14 | 2021-07-22 | 浙江石化阀门有限公司 | Metal-sealed unfurled valve and driving device therefor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170616 |