CN103591367B - The spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type - Google Patents
The spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type Download PDFInfo
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- CN103591367B CN103591367B CN201310590077.4A CN201310590077A CN103591367B CN 103591367 B CN103591367 B CN 103591367B CN 201310590077 A CN201310590077 A CN 201310590077A CN 103591367 B CN103591367 B CN 103591367B
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- screw
- nut
- screw mandrel
- rodb base
- locking nut
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- 230000007246 mechanism Effects 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 231100000817 safety factor Toxicity 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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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
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to the diaphragm actuator integral type spacing guiding mechanism of upper and lower flow, including hexagon thin nut, stop nut, screw mandrel, locking nut, screw rodb base, sealing ring and oil-free lining；Feature is: described stop nut is threaded connection and is arranged on actuator upper push-rod top, described screw mandrel is threaded connection and is arranged in screw rodb base, described locking nut is coordinated with screw mandrel be arranged on screw rodb base top by screw thread, with holding screw and hex nut, function switching can be realized according to regulation needs, described screw rodb base is bolted in actuator on membrane cover by built-in, internal equipped with oil-free lining and sealing ring.The present invention can play guiding and sealing function；This mechanism's decapacitation meets outside the conventional adjustment demand that upper flow is spacing or down-off is spacing, moreover it is possible to realize upper and lower flow spacing while total travel adjustable.
Description
Technical field
The present invention relates to a kind of actuator Flow Limit bit architecture, concretely relate to a kind of diaphragm actuator integral type spacing guiding mechanism of upper and lower flow.
Background technology
In traditional sense, according to energy mode, the actuator of regulation valve is divided into pneumatic, the electronic and form such as surge.Pneumatic diaphragn actuating mechanism has simple in construction, reliable in action, the advantage such as easy to maintenance, cheap, is a kind of the most widely used regulation valve drive, does not the most configure upper and lower flow locating part, and action mode has positive and negative two kinds.
In modern industry Process Control System, no matter it is in order at the consideration of safety factors, or due to the change of technological parameter, or the unstability etc. of working condition, many clients are desirable that the actuator of regulation valve has adjustable flow limit function to meet its process requirements.As a example by positive interaction diaphragm actuator, conventional way is: when requiring to have upper flow spacing adjustment function, by position limiting structure design on diaphragm actuator at membrane cover；When requiring to have down-off limit position adjusting function, by position limiting structure design under diaphragm actuator at membrane cover.The design attitude of reverse acting actuator is identical with positive interaction, but component structural is different.The design of this class formation is simple, and its operation principle is to be acted on locating part by rotary screw to realize upper and lower Flow Limit bit function.But only drawback is that, this class formation is without guiding and sealing structure, because there is gap between screw thread pair, when actuator moves to upper and lower two extreme positions, actuator can produce minor departures, and its result can cause regulating valve flow to change, and have impact on the degree of regulation of valve；And this structure does not possess dust-proof, anti-corrosion function, dust, rainwater etc. can enter actuator film chamber interior, affect the service life of actuator；The more important thing is, owing to having the connection member such as support, Hough and the existence of the adnexa such as localizer, air relief valve bottom diaphragm actuator, space suffers from limiting, and the installation spacing to down-off and adjustment are made troubles.
Summary of the invention
It is an object of the invention to overcome the deficiency in above-mentioned technology, thus a kind of easy to operate, rational in infrastructure, reliable and stable diaphragm actuator integral type spacing guiding mechanism of upper and lower flow is provided.
The technical scheme provided according to the present invention, the spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type includes hexagon thin nut, stop nut, screw mandrel, locking nut, screw rodb base, sealing ring and oil-free lining；Feature is: described stop nut is threaded connection and is arranged on actuator upper push-rod top, use hexagon thin nut pretension locking, described screw mandrel is threaded connection and is arranged in screw rodb base, described locking nut is coordinated with screw mandrel be arranged on screw rodb base top by screw thread, described screw rodb base is bolted in actuator on membrane cover by built-in, internal equipped with oil-free lining and sealing ring.
As a further improvement on the present invention, described stop nut and locking nut are respectively provided with operable handle.Locking nut is with the para-position graduation mark of holding screw and screw mandrel keyway, and time tight, holding screw and screw mandrel disengage, anti-rotation in holding screw is screwed into screw mandrel keyway during adjustment.
As a further improvement on the present invention, the lower end targeting part diameter of described screw mandrel is more than upper end motion thread diameter.Screw mandrel radially leaves appropriate clearance with upper push-rod and stop nut, it is ensured that non-interference during axial action.
As a further improvement on the present invention, described screw mandrel stretches out a length of upper flow spacing adjustment stroke of locking nut, and the distance between described stop nut and locking nut is down-off spacing adjustment stroke.It is adjustable that the spacing adjustment of upper flow and the spacing adjustment of down-off are both designed as total travel.
As a further improvement on the present invention, described screw rodb base is that built-in bolt connects, with lip extrusion mouth.
Compared with the prior art the present invention has the advantage that
1, compact conformation, easy to operate.Membrane cover top in actuator is all designed by spacing for upper and lower flow, unitary design, rational in infrastructure.Headroom is big, restriction without the adnexa such as air relief valve, localizer, and without spanner when adjusting spacing, self-control nut is all with operable handle, locking nut is with para-position graduation mark, adjustment instrument can be converted under the effect of holding screw, it is simple to operation, flow can be adjusted flexibly according to actual needs spacing.
2, the suitability is good.Up and down Flow Limit bit architecture is separate, does not has any impact each other, and decapacitation meets outside the conventional adjustment demand that upper flow is spacing or down-off is spacing, moreover it is possible to realize upper and lower flow spacing while total travel adjustable.
3, easy for installation, degree of regulation is high.Screw rodb base uses lip extrusion technique, it is simple to the installation of oil-free lining.Oil-free lining is made up of composite, and with hard alloy thin plate as matrix, outside adheres to one layer of tin bronze, inner surface one layer of organic substance of rolling and lead mixture, and its coefficient of friction is low, and wearability and self lubricity are good, guides steadily, improves the degree of regulation of valve.
4, good looking appearance, reliable in action.Screw rodb base uses built-in connecting bolt to connect, not only good looking appearance, moreover it is possible to be prevented effectively from corrosion.And with sealing ring, play dustproof anticorrosive effect, substantially prolongs the service life of actuator.Screw mandrel uses slip-off preventing design, prevents maloperation from causing the upper flow limit function of screw mandrel to lose efficacy, it is ensured that the reliability of actuator action.
5, highly versatile.Modularized design, positive and negative effect actuator is general.
Accompanying drawing explanation
Fig. 1 is the positive interaction structural representation of the present invention.
Fig. 2 is the fastening function schematic diagram of the locking nut of the present invention.
Fig. 3 is the functions of wrench schematic diagram of the locking nut of the present invention.
Fig. 4, Fig. 5 are the guiding of screw rodb base, seal structure and built-in bolt connection diagram.
Fig. 6 is the reaction structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described in detail.
As it is shown in figure 1, the spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type includes hexagon thin nut 1, stop nut 2, screw mandrel 3, holding screw 4, hex nut 5, locking nut 6, screw rodb base 7, sealing ring 8 and oil-free lining 9 etc..
Described stop nut 2 is threaded connection and is arranged on actuator upper push-rod top, use hexagon thin nut 1 pretension locking, described screw mandrel 3 is threaded connection and is arranged in screw rodb base 7, described locking nut 6 is coordinated with screw mandrel 3 by screw thread and is arranged on screw rodb base 7 top, described screw rodb base 7 is bolted in actuator on membrane cover by built-in, and described screw rodb base 7 is internal equipped with oil-free lining 9 and sealing ring 8.
It is respectively provided with operation handle on described stop nut 2 and locking nut 6.The lower end diameter of described screw mandrel 3 is more than upper end diameter, and screw mandrel 3 radially leaves appropriate clearance with upper push-rod and stop nut 2, it is ensured that non-interference during axial action.Described screw rodb base 7 is that built-in bolt connects, with lip extrusion mouth.Described locking nut 6 is provided with the keyway para-position graduation mark of holding screw 4 and screw mandrel 3.
Described screw mandrel stretches out a length of upper flow spacing adjustment stroke of locking nut, and the distance between described stop nut and locking nut is down-off spacing adjustment stroke.It is adjustable that the spacing adjustment of upper flow and the spacing adjustment of down-off are both designed as total travel.
Shown in Fig. 1-Fig. 3, three kinds of demands common in process control can be realized by following embodiment.
Described stop nut 2 is threaded connection and is arranged on actuator upper push-rod top, use hexagon thin nut 1 pretension locking, and the distance between locking nut 6 is down-off spacing adjustment stroke, with operable handle, when needing to adjust, by rotatable handle stop nut 2；Described screw mandrel 3 is threaded connection and is arranged in screw rodb base 7, and there is gap between upper push-rod and stop nut 2, non-interference during actuator action, stretches out a length of upper flow spacing adjustment stroke of locking nut 6；Described locking nut 6 is coordinated with screw mandrel 3 by screw thread and is arranged on screw rodb base 7 top, also with operable handle, use as stop nut during normal work, when needing the upper flow of adjustment spacing, holding screw 4 is screwed into anti-rotation in the keyway of screw mandrel 3, uses as spanner；Described screw rodb base 7 is bolted in actuator on membrane cover by built-in, internal equipped with oil-free lining 9 and sealing ring 8, rises and guides and sealing function.
1, the spacing adjustment of upper flow
Described locking nut 6 is unclamped by handle, the keyway of described screw mandrel 3 it is directed at according to para-position graduation mark, unclamp described hex nut 5, the cylindrical end of described holding screw 4 is screwed in keyway, now locking nut 6 and screw mandrel 3 are fixed as an entirety, described screw mandrel 3 is connected by threaded engagement with screw rodb base 7, hold rotatable handle screw mandrel 3, improve or reduce its position in screw rodb base 7 as required, then holding screw 4 is screwed out, fasten hex nut 5, locking nut 6 and screw mandrel 3 is made to recover to relatively rotate, the most again locking nut 6 is fastened on screw rodb base 7, it is finally reached the purpose increasing or reducing upper flow.The power and energy of locking nut 6 is as shown in Figure 2.
2, the spacing adjustment of down-off
Unclamp described hexagon thin nut 1, hold stop nut 2 described in rotatable handle, improve or reduce its position on actuator upper push-rod, then fastening hexagon thin nut 1, can realize increasing or reducing the function of down-off.
3, upper and lower flow is spacing adjusts simultaneously
Repeating the above upper spacing adjustment of flow and the spacing set-up procedure of down-off, upper flow is spacing and down-off is spacing can be carried out simultaneously, and is independent of each other therebetween.
As shown in Figure 4, Figure 5, described screw rodb base 7 be designed with lip extrusion technique, facilitate the installation of described oil-free lining 9, oil-free lining coefficient of friction is little, and steering capability is good, improves the degree of regulation of regulation valve.Loading described sealing ring 8 in described screw rodb base 7, can play the most dust-proof, antisepsis, effectively protection actuator film chamber interior part, extends the service life of actuator.It addition, described screw rodb base 7 is fastened on membrane cover top in actuator, not only good looking appearance by built-in bolt, moreover it is possible to be prevented effectively from corrosion so that it is action safety and reliability.
As shown in Figure 6, the described diaphragm actuator integral type spacing guiding mechanism of upper and lower flow has good versatility, installs and is not limited by actuator Positive-Negative Action.
Claims (3)
1. the spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type, is characterized in that: include hexagon thin nut (1), stop nut (2), screw mandrel (3), locking nut (6), screw rodb base (7), sealing ring (8) and oil-free lining (9)；Described stop nut (2) is threaded connection and is arranged on actuator upper push-rod top, use hexagon thin nut (1) pretension locking, described screw mandrel (3) is threaded connection and is arranged in screw rodb base (7), described locking nut (6) is coordinated with screw mandrel (3) be arranged on screw rodb base (7) top by screw thread, described screw rodb base (7) is bolted in actuator on membrane cover by built-in, and described screw rodb base (7) is internal equipped with oil-free lining (9) and sealing ring (8)；
Also including holding screw (4), hex nut (5), hex nut (5) coordinates with holding screw (4), and described stop nut (2) and locking nut (6) are respectively provided with operation handle；Screw mandrel has keyway on (3)；Described locking nut (6) is provided with holding screw (4), it is additionally provided with the keyway para-position graduation mark of screw mandrel (3), described locking nut (6) is unclamped by handle, para-position graduation mark is directed at the keyway of described screw mandrel (3), unclamp described hex nut (5), the cylindrical end of described holding screw (4) is screwed in keyway, and locking nut (6) and screw mandrel (3) are fixed as an entirety；Described screw mandrel (3) is connected by threaded engagement with screw rodb base (7), hold rotatable handle screw mandrel (3), improve or reduce its position in screw rodb base (7) as required, then holding screw (4) is screwed out, fasten hex nut (5), make locking nut (6) and screw mandrel (3) recover to relatively rotate, the most again locking nut (6) is fastened on screw rodb base (7).
2. the diaphragm actuator integral type spacing guiding mechanism of upper and lower flow as claimed in claim 1, is characterized in that: the lower end diameter of described screw mandrel (3) is more than upper end diameter, and screw mandrel (3) radially leaves appropriate clearance with upper push-rod；And screw mandrel (3) radially leaves appropriate clearance with stop nut (2).
3. the diaphragm actuator integral type spacing guiding mechanism of upper and lower flow as claimed in claim 1, is characterized in that: described screw rodb base (7) is that built-in bolt connects, with lip extrusion mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590077.4A CN103591367B (en) | 2013-11-20 | 2013-11-20 | The spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590077.4A CN103591367B (en) | 2013-11-20 | 2013-11-20 | The spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103591367A CN103591367A (en) | 2014-02-19 |
| CN103591367B true CN103591367B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310590077.4A Active CN103591367B (en) | 2013-11-20 | 2013-11-20 | The spacing guiding mechanism of the upper and lower flow of diaphragm actuator integral type |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937650B (en) * | 2016-06-22 | 2018-02-02 | 无锡斯考尔自动控制设备有限公司 | A kind of diaphragm actuator with gauche form handwheel |
| CN110230725B (en) * | 2019-07-12 | 2024-06-18 | 无锡爱圣拓克流体控制有限公司 | Pneumatic actuator drive shaft angle adjustment tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175473A (en) * | 1962-05-01 | 1965-03-30 | Grinnell Corp | Spring and fluid pressure actuator |
| CN101858460A (en) * | 2010-06-13 | 2010-10-13 | 无锡智能自控工程有限公司 | External adjustable flow limiter |
| CN202691132U (en) * | 2012-06-05 | 2013-01-23 | 昆山新莱洁净应用材料股份有限公司 | Limitable diaphragm valve |
| CN202852162U (en) * | 2012-09-27 | 2013-04-03 | 天津精通控制仪表技术有限公司 | Counteractive ejector-mounting hand-operating mechanism |
| CN203627994U (en) * | 2013-11-20 | 2014-06-04 | 无锡智能自控工程股份有限公司 | Integrated upper and lower flow limiting adjustment mechanism of diaphragm actuator |
-
2013
- 2013-11-20 CN CN201310590077.4A patent/CN103591367B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3175473A (en) * | 1962-05-01 | 1965-03-30 | Grinnell Corp | Spring and fluid pressure actuator |
| CN101858460A (en) * | 2010-06-13 | 2010-10-13 | 无锡智能自控工程有限公司 | External adjustable flow limiter |
| CN202691132U (en) * | 2012-06-05 | 2013-01-23 | 昆山新莱洁净应用材料股份有限公司 | Limitable diaphragm valve |
| CN202852162U (en) * | 2012-09-27 | 2013-04-03 | 天津精通控制仪表技术有限公司 | Counteractive ejector-mounting hand-operating mechanism |
| CN203627994U (en) * | 2013-11-20 | 2014-06-04 | 无锡智能自控工程股份有限公司 | Integrated upper and lower flow limiting adjustment mechanism of diaphragm actuator |
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| Publication number | Publication date |
|---|---|
| CN103591367A (en) | 2014-02-19 |
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