CN104180049B - The Drive And Its Driving Method of a kind of slow opening fast shutting safety valve - Google Patents
The Drive And Its Driving Method of a kind of slow opening fast shutting safety valve Download PDFInfo
- Publication number
- CN104180049B CN104180049B CN201410450613.5A CN201410450613A CN104180049B CN 104180049 B CN104180049 B CN 104180049B CN 201410450613 A CN201410450613 A CN 201410450613A CN 104180049 B CN104180049 B CN 104180049B
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- China
- Prior art keywords
- gear
- tooth bar
- valve
- clutch coupling
- clutch
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Classifications
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- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- 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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to the drive unit of slow opening fast shutting safety valve, the technical problems such as existing quick-break safety valve driving mechanism time of response length, life-span be short will be solved, belong to industrial stokehold technical field. It comprises clutch coupling, valve rod, gear unit and motor, is characterised in that: the two ends of clutch coupling are connected with clutch coupling driven axle and clutch driving shaft respectively, and clutch driving shaft is coaxially fixedly connected with gear A, and gear A engages with driving toothed gear; Clutch coupling driven axle is coaxially fixedly connected with gear C, and gear B engages with gear C; Gear B and gear D are connected by coupling shaft, three coaxial and can synchronous axial system; Gear D engages with tooth bar; By connecting, block is fixedly connected with tooth bar with valve rod; Being connected in series a spring on valve rod, driver framework is fixed in spring one end, and block is fixedly connected with the other end with being connected, and the lower end of valve rod is connected with valve. By Spring driving when the drive unit of the present invention cuts out, close response fast, it may also be useful to the life-span is long, can apply on large bore valves.
Description
Technical field
The present invention relates to the safety valve of gas fuel course of conveying control, particularly relate to the Drive And Its Driving Method of a kind of slow opening fast shutting safety valve, belong to industrial stokehold safety valve technical field.
Background technology
Safety valve is generally made up of valve body, spool, drive unit etc., it is widely used in every profession and trade, particularly in the industrial field of some relation production safeties, once run into emergency situation, the safety valve being responsible for fluid control must close spool within the time short as far as possible, cut off fluid, thus reduces loss or avoid accident to occur. Therefore, safe quick-break valve technology and reliability are extremely important.
The safety valve in the current whole world mainly contains two classes, one class is pneumatic quick-closing valve, it is driven by cylinder compressed air, spool is made to overcome the pressure of the spring being connected in spool and open spool, thus fluid can be dredged, when, after pressurized air of draining, spool closes rapidly spool under the driving of spring. This type of pneumatic quick-closing valve turn-off time depends on the exhaust time of spring power and cylinder, engineering must be prepared with the pressurized air of 5-8bar pressure as driving source, equipment relative complex; Another class is magnetic valve, and it applies electromagnetic induction effect, and after energising, coil produces suction, directly overcomes valve core spring power and opens spool so that fluid is dredged, and after power-off, coil magnetic force disappears, and spool is closed under Spring driving. But coil now easily damages after being energized for a long time, particularly easily overheated and burn out coil, thus affect and engineering is applied, generally continue electrical working time in the world not higher than 6000 hours, domestic then not higher than 1000 hours, in addition, valve body bore is more big, and solenoid more easily damages.
Chinese patent (application number: 201210075207.6) disclose " Drive And Its Driving Method of a kind of slow opening fast shutting safety valve ", with regulations and parameters principle and evolvent type curve wheel effect, realize the slow opening fast shutting of valve, a kind of new motorized valve drive unit is developed, it may also be useful to the life-span is long outside magnetic valve; But owing to being limited to lever and curve wheel size, stroke and the moment of this drive unit are limited, valve aperture is maximum only can accomplish DN150.
In general, the topworks of safe spool or there is this high problem of volume great achievement, or have that safe response speed is not high and the weather resistance problems such as (internal mechanical abrasion is big), bore be little not. Market also require spool product to high technology content, high-parameters, high reliability, high work-ing life direction develop.
Summary of the invention
It is an object of the invention to overcome the existing quick-break safe spool driving mechanism time of response long; life-span is short; the defects such as valve aperture is little; the Drive And Its Driving Method of a kind of slow opening fast shutting safety valve is provided; realize slowly opening spool, reducing moment flow attack; and close rapidly spool, it is achieved the object of safeguard protection.
For achieving the above object, the technical scheme taked is: the drive unit of a kind of slow opening fast shutting safety valve, comprise clutch coupling, valve rod, gear unit and motor, it is characterized in that: the two ends of described clutch coupling are coaxially connected with clutch coupling driven axle and clutch driving shaft respectively, when clutch coupling adhesive, clutch coupling driven axle and clutch driving shaft coaxially connect synchronous axial system; Clutch driving shaft is coaxially fixedly connected with gear A, and gear A engages with driving toothed gear and connects; Clutch coupling driven axle is coaxially fixedly connected with gear C, and gear B engages with gear C and connects; Gear B and gear D are coaxially connected with coupling shaft; Gear D engages with tooth bar and connects, and described tooth bar side is equipped with a through hole parallel with the sawtooth direction of described tooth bar, the tooth bar axle that the built-in upper and lower two ends of described through hole are fixedly connected with driver framework, and described tooth bar can slide up and down along described tooth bar axle; By connecting, block and described valve rod are fixedly connected described tooth bar, and described valve rod is placed in the inner ring of spring, and spring one end is fixedly connected with described driver framework, and the other end is fixedly connected with the described block that is connected; The upper and lower two ends of described valve rod are outwards extended by the upper lower through-hole of described driver framework respectively, and can move up and down in described through hole, and described valve rod bottom is fixedly connected with the valve of spool.
The driving method of the drive unit of described slow opening fast shutting safety valve, it is characterised in that:
(1) open slowly: the energising adhesive of described clutch coupling, described clutch coupling driven axle and described clutch driving shaft is made to become one coaxial overall, described driving toothed gear is by described motor motivating force effect, drive described gear A and described gear C synchronous axial system, gear C drives described gear B to rotate, gear B drives coaxial described gear D to rotate by described coupling shaft, gear D drives described tooth bar to do Direct Travel motion, tooth bar and then drive described valve rod to rise by described connection block, described spring is compressed, and valve core valve is opened;
(2) quick closing valve: described clutch coupling dead electricity, the clutch coupling driven axle at clutch coupling two ends is separated with clutch driving shaft, clutch coupling driven axle loses power, can not continue to follow-up gear B, gear C, gear D and tooth bar and described connection block to support power, under the effect of spring elastic force, described connection block drives described valve rod to move downward rapidly, thus shutoff valve core valve.
The drive unit of the present invention uses clutch coupling and gear principle, only need a fractional horse-power motor drive gear casing, utilize ratio of gear by little moment amplification, just easily can open valve steadily, the huge parts such as the cylinder not needing pneumatic valve core, manufacturing cost is low; By Spring driving when dead electricity is closed, close the time of response short, it may also be useful to the life-span is long, can apply to more than DN200 large bore valves, continuous normal operation more than 20000 hours. Thus entirety improves the reliability of safe spool and improves quick-break spool safety assurance ability widely.
Accompanying drawing explanation
Fig. 1 is drive unit and the one-piece construction schematic diagram thereof of slow opening fast shutting safety valve of the present invention;
Fig. 2 is the A direction view of drive unit in Fig. 1;
Fig. 3 is the B direction view of drive unit in Fig. 1;
Fig. 4 is that tooth bar, connection block and valve rod local connect structural representation.
In figure, 1-clutch coupling; 2-clutch coupling driven axle; 3-clutch driving shaft; 4-driving toothed gear; 5-gear A; 6-gear B; 7-gear C; 8-gear D; 9-coupling shaft; 10-tooth bar; 11-tooth bar axle; 12-valve rod; 13-spring; 14 connection blocks; 15-driver framework; 16-valve.
Embodiment
Illustrate that the invention will be further described with embodiment based on the following accompanying drawing.
Fig. 1 is drive unit and the one-piece construction schematic diagram thereof of slow opening fast shutting safety valve of the present invention, Fig. 2,3 be respectively in Fig. 1 drive unit A to, B to structural representation; From Fig. 1��Fig. 3, the drive unit of a kind of slow opening fast shutting safety valve, comprise clutch coupling 1, valve rod 12, gear unit and motor, it is characterized in that: the two ends of described clutch coupling 1 are coaxially connected with clutch coupling driven axle 2 and clutch driving shaft 3 respectively, when clutch coupling 1 adhesive, clutch coupling driven axle 2 and clutch driving shaft 3 coaxially connect synchronous axial system; Clutch driving shaft 3 is coaxially fixedly connected with gear A 5, and gear A 5 engages with driving toothed gear 4 and connects; Clutch coupling driven axle 2 is coaxially fixedly connected with gear C 7, and gear B 6 engages with gear C 7 and connects; Gear B 6 and gear D 8 are coaxially connected with coupling shaft 9; Gear D 8 engages with tooth bar 10 and connects; Fig. 4 for be tooth bar, connect block and valve rod local connect structural representation, illustrate described tooth bar 10 side and it is equipped with a through hole parallel with the sawtooth direction of described tooth bar 10, the tooth bar axle 11 that the built-in upper and lower two ends of described through hole are fixedly connected with driver framework 15, described tooth bar 10 can slide up and down along described tooth bar axle 11, and by connecting, block 14 is fixedly connected described tooth bar 10 with described valve rod 12; Described valve rod 12 is placed in the inner ring of spring 13, and described spring 13 one end is fixedly connected with described driver framework 15, and the other end is fixedly connected with the described block 14 that is connected; Described valve rod about 12 two ends are outwards extended by the upper lower through-hole of described driver framework 15 respectively, and can move up and down in described through hole, and the bottom of described valve rod 12 is fixedly connected with the valve 16 of spool.
Transmitting ratio between described gear B 6 and described gear D 8 is less than 1.
During the operation of the drive unit of described slow opening fast shutting safety valve, driving method is:
(1) open slowly: described clutch coupling 1 is energized adhesive, described clutch coupling driven axle 2 and clutch driving shaft 3 is made to become one coaxial overall, described driving toothed gear 4 is by described motor motivating force effect, drive described gear A 5 and described gear C 7 synchronous axial system, described gear C 7 drives described gear B 6 to rotate, described gear B 6 drives coaxial described gear D 8 to rotate by described coupling shaft 9, gear D 8 drives described tooth bar 10 to do Direct Travel motion, described tooth bar 10 and then drive described valve rod 12 to rise by described connection block 14, described spring is compressed, the valve 16 of described spool is opened,
(2) quick closing valve: when described clutch coupling 1 dead electricity, the clutch coupling driven axle 2 at described clutch coupling 1 two ends is separated with clutch driving shaft 3, clutch coupling driven axle 2 loses power, can not continue to follow-up gear B 6, gear C 7, gear D 8, and tooth bar 10 and described connection block 14 are to support power, under the effect of spring 13 elastic force, described connection block 14 drives described valve rod 12 to move downward rapidly, thus the valve 16 of spool described in quick closedown.
In sum, to improve the reliability of this type of safe spool, cost low for the present invention's entirety, it may also be useful to life-span length also improves quick-break spool safety assurance ability widely. Under the amplification of gear, motor motivating force being amplified several times, thus form high thrust, expand use medium pressure range, valve aperture can also accomplish more than DN200, can normal operation more than 20000 hours continuously.
Claims (2)
1. the drive unit of a slow opening fast shutting safety valve, comprise clutch coupling, valve rod, gear unit and motor, it is characterized in that: the two ends of described clutch coupling are coaxially connected with clutch coupling driven axle and clutch driving shaft respectively, when clutch coupling adhesive, clutch coupling driven axle and clutch driving shaft coaxially connect synchronous axial system; Clutch driving shaft is coaxially fixedly connected with gear A, and gear A engages with driving toothed gear and connects; Clutch coupling driven axle is coaxially fixedly connected with gear C, and gear B engages with gear C and connects; Gear B and gear D are coaxially connected with coupling shaft; Gear D engages with tooth bar and connects, and described tooth bar side is equipped with a through hole parallel with the sawtooth direction of described tooth bar, the tooth bar axle that the built-in upper and lower two ends of described through hole are fixedly connected with driver framework, and described tooth bar can slide up and down along described tooth bar axle; By connecting, block and described valve rod are fixedly connected described tooth bar, and described valve rod is placed in the inner ring of spring, and spring one end is fixedly connected with described driver framework, and the other end is fixedly connected with the described block that is connected; The upper and lower two ends of described valve rod are outwards extended by the upper lower through-hole of described driver framework respectively, and can move up and down in described through hole, and described valve rod bottom is fixedly connected with valve core valve.
2. the driving method of the drive unit of slow opening fast shutting safety valve described in claim 1, it is characterised in that:
(1) open slowly: the energising adhesive of described clutch coupling, described clutch coupling driven axle and described clutch driving shaft is made to become one coaxial overall, described driving toothed gear is by described motor motivating force effect, drive described gear A and described gear C synchronous axial system, gear C drives described gear B to rotate, gear B drives coaxial described gear D to rotate by described coupling shaft, gear D drives described tooth bar to do Direct Travel motion, tooth bar and then drive described valve rod to rise by described connection block, described spring is compressed, and valve core valve is opened;
(2) quick closing valve: described clutch coupling dead electricity, the clutch coupling driven axle at clutch coupling two ends is separated with clutch driving shaft, clutch coupling driven axle loses power, can not continue to follow-up gear B, gear C, gear D and tooth bar and described connection block to support power, under the effect of spring elastic force, described connection block drives described valve rod to move downward rapidly, thus shutoff valve core valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450613.5A CN104180049B (en) | 2014-09-05 | 2014-09-05 | The Drive And Its Driving Method of a kind of slow opening fast shutting safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450613.5A CN104180049B (en) | 2014-09-05 | 2014-09-05 | The Drive And Its Driving Method of a kind of slow opening fast shutting safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104180049A CN104180049A (en) | 2014-12-03 |
| CN104180049B true CN104180049B (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450613.5A Active CN104180049B (en) | 2014-09-05 | 2014-09-05 | The Drive And Its Driving Method of a kind of slow opening fast shutting safety valve |
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| CN (1) | CN104180049B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183576B (en) * | 2022-02-14 | 2022-04-26 | 杭州先锋电子技术股份有限公司 | Electric valve with double transmission mechanisms |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2044138A1 (en) * | 1970-09-05 | 1972-03-16 | Programmelectronic GmbH, 7321 Albershausen | Electrically operated valve for gaseous or liquid media, especially for burner systems |
| JP2715258B2 (en) * | 1994-05-11 | 1998-02-18 | 日本ベーレー株式会社 | Actuator for valve drive |
| AU1667997A (en) * | 1996-04-04 | 1997-10-09 | Baker Hughes Incorporated | Valve actuator |
| CN101050822A (en) * | 2007-05-15 | 2007-10-10 | 陕西航天泵阀科技有限公司 | Mechanical pressure control on-off controller |
| CN101430022A (en) * | 2007-11-08 | 2009-05-13 | 江苏神通阀门股份有限公司 | Driving unit of partially slewing valve |
| CN201705944U (en) * | 2009-06-24 | 2011-01-12 | 长春高中压阀门有限责任公司 | Check valve closed by stored energies of spring |
| CN102606787B (en) * | 2011-12-06 | 2016-08-03 | 上海诺特飞博燃烧设备有限公司 | A kind of Drive And Its Driving Method of slow opening fast shutting relief valve |
| CN204062098U (en) * | 2014-09-05 | 2014-12-31 | 上海诺特飞博燃烧设备有限公司 | A kind of drive unit of slow opening fast shutting safety valve |
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2014
- 2014-09-05 CN CN201410450613.5A patent/CN104180049B/en active Active
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| CN104180049A (en) | 2014-12-03 |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xiao Jiangdong Inventor after: Sha Baowei Inventor before: Xiao Jiangdong Inventor before: Sha Baowei Inventor before: Xu Zhibin |
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Free format text: CORRECT: INVENTOR; FROM: XIAO JIANGDONG SHA BAOWEI XU ZHIBIN TO: XIAO JIANGDONG SHA BAOWEI |
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