CN102494168B - Method for regulating spring ranges of pneumatic diaphragm actuating mechanism and application thereof - Google Patents
Method for regulating spring ranges of pneumatic diaphragm actuating mechanism and application thereof Download PDFInfo
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- CN102494168B CN102494168B CN 201110411670 CN201110411670A CN102494168B CN 102494168 B CN102494168 B CN 102494168B CN 201110411670 CN201110411670 CN 201110411670 CN 201110411670 A CN201110411670 A CN 201110411670A CN 102494168 B CN102494168 B CN 102494168B
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Abstract
The invention provides a method for regulating spring ranges of a pneumatic diaphragm actuating mechanism, which is applied to the pneumatic diaphragm actuating mechanism. The method comprises the steps of (1) arranging a plurality of springs on a spring seat of a second diaphragm cover member; (2) arranging a limit part between a first diaphragm cover member and the second diaphragm cover member, sleeving a plurality of gaskets, a pallet and a diaphragm piece at one end of the limit part, enabling the limit part, the gaskets, the pallet and the diaphragm piece to sequentially connected for fixing through connecting parts, and enabling the springs to abut against the pullets; (3) enabling the first diaphragm cover member and the second diaphragm cover member to be connected for fixing through connecting parts; and (4) regulating the number of the springs and/or the number of the gaskets when the spring ranges are required to be regulated. Compared with the prior art, the method can regulate different spring ranges in the same stroke by only regulating the number of the springs and/or the number of the gaskets, thereby reducing types of stocked springs, saving cost, greatly reducing storage and facilitating storage management and pre-assembling of diaphragm heads.
Description
Technical field
The present invention relates to actuator's technical field that modulating valve automatically adjusts, particularly a kind of regulating method of range of spring of pneumatic diaphragn actuating mechanism and application thereof.
Background technique
Pneumatic diaphragm control valve is a kind of regulating controller in the pneumatic unit combination instrument, be to produce to carry out one of important devices in the process automatic regulating system, it is accepted the output signal of regulation meter and closes and Open valve, reach the isoparametric automatic adjusting of pressure, temperature, flow and liquid level, can be widely used in automatic adjusting and the telecontrol of chemical industry, oil, metallurgy, electric power, light textile industry.At present, pneumatic diaphragm control valve commonly used mainly is made up of valve mechanism and actuator, and the push rod that links to each other by the centre connects between the two.Existing actuator by last membrane cover, down membrane cover, diaphragm, spring and down the support that links to each other of membrane cover bottom forms, be mounted with a slippage up and down, also can connect the push rod of diaphragm and valve mechanism valve rod at support; Film chamber in the described actuator is communicated with the control source of the gas of outside, after signal pressure input film chamber, produce thrust at diaphragm, the compression spring, push rod is moved, and push rod drives the valve rod that links to each other, and changes the Flow area between spool and the valve seat, reach the reaction force of spring and thrust that signal pressure acts on the diaphragm and balance each other, thereby reach the purpose of automatic adjusting process parameter.
Pneumatic diaphragn actuating mechanism is the important component part of pneumatic control valve, how to guarantee the degree of regulation of pneumatic control valve, and except the precision of valve positioner, the stability of pneumatic diaphragn actuating mechanism also is vital.Spring is the major part of pneumatic diaphragn actuating mechanism, and the stability of pneumatic diaphragn actuating mechanism and the performance of spring have very big relation.The spring of pneumatic diaphragn actuating mechanism has an elastically-deformable scope, and the range of spring of pneumatic diaphragn actuating mechanism refers to the film chamber pressure scope of the film chamber pressure of a deck valve when static state starts when covering total travel.For example range of spring is 0.02～0.10MPa, represents that the film chamber pressure when this pneumatic diaphragn actuating mechanism static state starts is 0.02MPa, and the film chamber pressure when closing is 0.1MPa.The spring pressure scope of pneumatic diaphragn actuating mechanism refers to that modulating valve needs positioning work piece or other source of the gas to offer its air pressure scope, if positioning work piece or other source of the gas can not satisfy this scope, can not use this modulating valve effectively.
See also Fig. 1, be the sectional view of existing pneumatic diaphragn actuating mechanism, among the figure, the mounting point of the spring 4 that the film of pneumatic diaphragn actuating mechanism is indoor is fixed, and after the installation, the decrement of spring 4 is not regulate the space, in the time that different range of spring will be regulated, can only change spring 4.
Summary of the invention
The present invention's first purpose is to provide a kind of regulating method of range of spring of pneumatic diaphragn actuating mechanism, mounting point with the indoor spring of the film that solves existing pneumatic diaphragn actuating mechanism in the prior art is fixed, after the installation, the decrement of spring is not regulate the space, in the time that different range of spring will be regulated, can only change the technical matters of spring.
The present invention's second purpose is to provide a kind of application of regulating method in pneumatic diaphragn actuating mechanism of range of spring of pneumatic diaphragn actuating mechanism, mounting point with the indoor spring of the film that solves existing pneumatic diaphragn actuating mechanism in the prior art is fixed, after the installation, the decrement of spring is not regulate the space, in the time that different range of spring will be regulated, can only change the technical matters of spring.
The object of the invention is achieved through the following technical solutions:
A kind of regulating method of range of spring of pneumatic diaphragn actuating mechanism is applied to pneumatic diaphragn actuating mechanism, may further comprise the steps:
1) several springs is arranged on the spring seat of the second membrane cover parts;
2) between the first membrane cover parts and the second membrane cover parts, bounding means is set, some packing rings, pallet and diaphragm are set in an end of bounding means, successively bounding means, packing ring, pallet and diaphragm are connected and fixed described spring and described pallet butt by link;
3) the first membrane cover parts and the second membrane cover parts are connected and fixed by link;
4) when wanting the Regulation spring scope, adjust the number of described spring and/or the number of described packing ring.
Preferably, further comprise in the described step 1):
Described spring seat comprises several equally distributed spring spacing holes, and described spring is evenly distributed in the described spring spacing hole.
Preferably, further comprise described step 2):
The other end of described bounding means is fixedlyed connected with push rod.
Preferably, further comprise described step 2):
Described spring fully contacts with described pallet.
Preferably, the packing ring described step 2) comprises the self-control packing ring.
The application of a kind of regulating method of range of spring of pneumatic diaphragn actuating mechanism in pneumatic diaphragn actuating mechanism.
Compared with prior art, the present invention only needs the quantity of Regulation spring and/or the quantity of packing ring can regulate with range of springs different in the one stroke, has reduced the kind of stock spring, saved cost, significantly reduced quantity in stock, the pre-assembling of film head also is convenient in more convenient stock control.
Description of drawings
Fig. 1 is the sectional view of existing pneumatic diaphragn actuating mechanism;
Fig. 2 is among the present invention, the sectional view of the pneumatic diaphragn actuating mechanism before the Regulation spring scope;
Fig. 3 is among the present invention, the sectional view of the pneumatic diaphragn actuating mechanism after the Regulation spring scope;
Fig. 4 is among the present invention, the sectional view of the pneumatic diaphragn actuating mechanism after the Regulation spring scope;
Fig. 5 is among the present invention, the sectional view of the pneumatic diaphragn actuating mechanism after the Regulation spring scope.
Embodiment
The present invention only needs the quantity of Regulation spring and/or the quantity of packing ring can regulate with range of springs different in the one stroke, has reduced the kind of stock spring, has saved cost, has significantly reduced quantity in stock, and the pre-assembling of film head also is convenient in more convenient stock control.
Below in conjunction with embodiment, specify the present invention.
See also Fig. 2, the regulating method of the range of spring of pneumatic diaphragn actuating mechanism of the present invention is applied to pneumatic diaphragn actuating mechanism, may further comprise the steps:
1) several springs 4 is arranged on the spring seat of the second membrane cover parts 5; Spring seat comprises several equally distributed spring spacing holes, and spring 4 is evenly distributed in the spring spacing hole.
2) between the first membrane cover parts 1 and the second membrane cover parts 5, bounding means 8 is set, some packing rings 9, pallet 3 and diaphragm 2 are set in an end of bounding means 8, successively bounding means 8, packing ring 9, pallet 3 and diaphragm 2 are connected and fixed by link, spring 4 and pallet 3 butts, and fully contact.The other end of bounding means 8 is fixedlyed connected with push rod 6.Wherein, packing ring 9 can be the self-control packing ring.
3) the first membrane cover parts 1 and the second membrane cover parts 5 are connected and fixed by link;
4) when wanting the Regulation spring scope, adjust the number of spring 4 and/or the number of packing ring 9.
Range of spring is adjusted to 0.04～0.12MPa from 0.02～0.10MPa.
See also Fig. 2, erection drawing when being 0.02～0.10MPa for range of spring, at this moment, be provided with several self-control packing rings 9 below the pallet 3, the total thickness of packing ring 9 is 10mm, and the quantity of spring 4 is 3, and 3 springs 4 evenly are arranged on the spring seat, and fully contact with pallet 3, the height of compression rear spring 4 is about 112mm.In the time will being adjusted to 0.04～0.12Mpa to range of spring, keep the quantity of spring 4 constant, take off several packing rings 9, the total thickness that makes packing ring 9 is 6mm, and the height of compression rear spring 4 is about 108mm, at this moment, the range of spring of pneumatic diaphragn actuating mechanism is 0.04～0.12Mpa, as Fig. 3.
Range of spring is adjusted to 0.04～0.20MPa from 0.02～0.10MPa.
See also Fig. 2, erection drawing when being 0.02～0.10MPa for range of spring, at this moment, be provided with several self-control packing rings 9 below the pallet 3, the total thickness of packing ring 9 is 10mm, and the quantity of spring 4 is 3, and 3 springs 4 evenly are arranged on the spring seat, and fully contact with pallet 3, the height of compression rear spring 4 is about 112mm.In the time will being adjusted to 0.04～0.20MPa to range of spring, keep the total thickness of packing ring 9 constant, increase by 3 springs, spring 4 evenly is arranged on the spring seat, and fully contacts with pallet 3, at this moment, the range of spring of pneumatic diaphragn actuating mechanism is 0.04～0.20MPa, as Fig. 4.
Range of spring is adjusted to 0.08～0.24MPa from 0.02～0.10MPa.
See also Fig. 2, erection drawing when being 0.02～0.10MPa for range of spring, at this moment, be provided with several self-control packing rings 9 below the pallet 3, the total thickness of packing ring 9 is 10mm, and the quantity of spring 4 is 3, and 3 springs 4 evenly are arranged on the spring seat, and fully contact with pallet 3, the height of compression rear spring 4 is about 112mm.In the time will being adjusted to 0.08～0.24MPa to range of spring, take off several packing rings 9, the total thickness that makes packing ring 9 is 6mm, simultaneously, increases by 3 springs 4, make spring 4 evenly be arranged on the spring seat, and fully contact with pallet 3, the height of compression rear spring is about 108mm, at this moment, the range of spring of pneumatic diaphragn actuating mechanism is 0.08～0.24MPa, as Fig. 5.
Above embodiment only is used for illustrating, and is not used in restriction the present invention.
The regulating method of the range of spring of pneumatic diaphragn actuating mechanism of the present invention can be used in pneumatic diaphragn actuating mechanism.
More than disclosed only be several specific embodiments of the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.
Claims (6)
1. the regulating method of the range of spring of a pneumatic diaphragn actuating mechanism is applied to pneumatic diaphragn actuating mechanism, it is characterized in that, may further comprise the steps:
1) several springs is arranged on the spring seat of the second membrane cover parts;
2) between the first membrane cover parts and the second membrane cover parts, bounding means is set, some packing rings, pallet and diaphragm are set in an end of bounding means, successively bounding means, packing ring, pallet and diaphragm are connected and fixed described spring and described pallet butt by link;
3) the first membrane cover parts and the second membrane cover parts are connected and fixed by link;
4) when wanting the Regulation spring scope, adjust the number of described spring and/or the number of described packing ring.
2. the regulating method of the range of spring of a kind of pneumatic diaphragn actuating mechanism as claimed in claim 1 is characterized in that, further comprises in the described step 1):
Described spring seat comprises several equally distributed spring spacing holes, and described spring is evenly distributed in the described spring spacing hole.
3. the regulating method of the range of spring of a kind of pneumatic diaphragn actuating mechanism as claimed in claim 1 is characterized in that, described step 2) in further comprise:
The other end of described bounding means is fixedlyed connected with push rod.
4. the regulating method of the range of spring of a kind of pneumatic diaphragn actuating mechanism as claimed in claim 1 is characterized in that, described step 2) in further comprise:
Described spring fully contacts with described pallet.
5. the regulating method of the range of spring of a kind of pneumatic diaphragn actuating mechanism as claimed in claim 1 is characterized in that, described step 2) in packing ring comprise the self-control packing ring.
6. the application of the regulating method of the range of spring of a kind of pneumatic diaphragn actuating mechanism as claimed in claim 1 in pneumatic diaphragn actuating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110411670 CN102494168B (en) | 2011-12-12 | 2011-12-12 | Method for regulating spring ranges of pneumatic diaphragm actuating mechanism and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110411670 CN102494168B (en) | 2011-12-12 | 2011-12-12 | Method for regulating spring ranges of pneumatic diaphragm actuating mechanism and application thereof |
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| CN102494168A CN102494168A (en) | 2012-06-13 |
| CN102494168B true CN102494168B (en) | 2013-08-07 |
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| CN 201110411670 Active CN102494168B (en) | 2011-12-12 | 2011-12-12 | Method for regulating spring ranges of pneumatic diaphragm actuating mechanism and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108167507B (en) * | 2017-12-08 | 2020-02-21 | 北京航天计量测试技术研究所 | High-pressure micro-adjusting valve based on air spring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348070Y (en) * | 2009-01-05 | 2009-11-18 | 浙江永盛仪表有限公司 | Actuator for pneumatic diaphragm control valve |
| CN101858460A (en) * | 2010-06-13 | 2010-10-13 | 无锡智能自控工程有限公司 | External adjustable flow limiter |
| CN201925576U (en) * | 2011-01-24 | 2011-08-10 | 宁夏英奥特流体控制技术有限公司 | Novel pneumatic diaphragm actuating mechanism |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3155173B2 (en) * | 1995-08-10 | 2001-04-09 | 株式会社山武 | Valve actuator |
| US6776388B2 (en) * | 2002-09-30 | 2004-08-17 | Hans D. Baumann | Valve actuator with internal amplifying means |
| DE102006061017B4 (en) * | 2006-12-22 | 2014-05-22 | Samson Ag | Actuator and method for adjusting a maximum displacement of a drive rod of an actuator of the actuator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201348070Y (en) * | 2009-01-05 | 2009-11-18 | 浙江永盛仪表有限公司 | Actuator for pneumatic diaphragm control valve |
| CN101858460A (en) * | 2010-06-13 | 2010-10-13 | 无锡智能自控工程有限公司 | External adjustable flow limiter |
| CN201925576U (en) * | 2011-01-24 | 2011-08-10 | 宁夏英奥特流体控制技术有限公司 | Novel pneumatic diaphragm actuating mechanism |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-53745A 1997.02.25 |
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| CN102494168A (en) | 2012-06-13 |
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