CN1419067A - Actuator for valve - Google Patents
Actuator for valve Download PDFInfo
- Publication number
- CN1419067A CN1419067A CN 01138432 CN01138432A CN1419067A CN 1419067 A CN1419067 A CN 1419067A CN 01138432 CN01138432 CN 01138432 CN 01138432 A CN01138432 A CN 01138432A CN 1419067 A CN1419067 A CN 1419067A
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- CN
- China
- Prior art keywords
- valve
- gear
- shaft
- motor
- disc spring
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- 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.)
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- Mechanically-Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention provides a valve actuator, and is characterized by that it utilizes the drive of reversible motor to make output shaft connected with shaft bar of valve projected from shell body receiving drive component rotate in poisitve and negative 90 deg. so as to open or close valve. On the rotating shaft an inner gear is pivot-supported, and can be driven by motor and rotated by means of worm and worn wheel pivot-supported on the output shaft, and on the second control gear pivot-supported by rolating shaft several epicyclic gears are respectively pivot-supported and respectively meshes with internal teeth of the inner gear and external peripheral teeth of first control gear fixed on the rotating shaft, and on the output shaft a large-diameter gear meshes with said gear is fixed.
Description
Technical field
The present invention relates to have the actuator for valve of urgent switching function.
Background technique
Actuator for valve is arranged in the prior art, and this actuator for valve has the disc spring of reeling in advance when the driven opening valve by motor, closes or open the urgent switching function of valve by the restoring force of disc spring in emergency period such as power failures.
In the actuator for valve of this prior art, coiling disc spring when opening or closing valve owing to driving by motor, load when effect has open and close valve often on motor and the load of coiling disc spring, therefore, not only need to produce the motor of the moment of torsion of dealing with this two aspects load, and, during each open and close valve, all will reel repeatedly disc spring or make the disc spring uncoiling has brought short defective of disc spring life-span.
The objective of the invention is provides a kind of actuator for valve in order to address the above problem, and in this actuator for valve, is built-in with the mechanism that can carry out valve on-off action and disc spring coiling action with a motor respectively independently.
Summary of the invention
Actuator for valve of the present invention is a kind of by reversing the driving of motor, make the output shaft that is connected with axostylus axostyle just from the outstanding valve of the housing that holds drive portion, anti-90 degree rotate and the actuator for valve of open and close valve, it is characterized by, on running shaft, pivotally be supported with driving by means of said motor, reach the internal gear of the worm gear rotation that pivotally is supported on the above-mentioned output shaft by worm screw, on second control gear that props up by the running shaft pivot, pivotally be supported with interior all teeth of this internal gear by pin respectively and be fixed on several planetary pinions of the common engagement of outer peripheral teeth of first control gear on this running shaft, on above-mentioned output shaft, be fixed with gear wheel in large diameter with this gear engagement, simultaneously, above-mentioned running shaft is provided with the disc spring of reeling by the rotation of this running shaft, also be provided with electromagnetic brake, this electromagnetic brake stops the uncoiling of this disc spring when energising, when cutting off energising, remove the interception of this disc spring uncoiling.
Finish opening or closing after the action of valve in the driving by motor, the coiling disc spring keeps the pressure accumulation state of disc spring under the effect of electromagnetic brake, under the situation beyond having a power failure etc. when urgent, and not uncoiling of disc spring.
According to actuator for valve of the present invention, by reversing the driving of motor, make the output shaft that is connected with axostylus axostyle just from the outstanding valve of the housing that holds drive portion, in the actuator for valve of anti-90 degree rotations and open and close valve, on running shaft, pivotally be supported with driving by means of said motor, reach the internal gear of the worm gear rotation that pivotally is supported on the above-mentioned output shaft by worm screw, on second control gear that props up by the running shaft pivot, pivotally be supported with interior all teeth of this internal gear by pin respectively and be fixed on several planetary pinions of the common engagement of outer peripheral teeth of first control gear on this running shaft, on above-mentioned output shaft, be fixed with gear wheel in large diameter with this gear engagement, simultaneously, above-mentioned running shaft is provided with the disc spring of reeling by the rotation of this running shaft, also be provided with electromagnetic brake, this electromagnetic brake stops the uncoiling of this disc spring when energising, when cutting off energising, remove the interception of this disc spring uncoiling, therefore, finish opening or closing after the action of valve in the driving by motor, the disc spring of reeling independently, the pressure accumulation state that under the effect of electromagnetic brake, keeps disc spring, under the situation beyond having a power failure etc. when urgent, disc spring can uncoiling.Thereby motor only need be used to the to reel moment of torsion of disc spring just has been enough to, and can use small-sized, cheap motor.Do not need this actuator as prior art, in the on-off action of valve each time, all to carry out the coiling of disc spring, the action of uncoiling repeatedly, therefore, greatly prolonged the life-span of disc spring, be expected to obtain action reliably and with long-term, as the emergency cut-off actuator, also can obtain the very high structure of Security.
Brief description of drawings
Fig. 1 is the side view that expression actuator for valve of the present invention is installed to the state on the valve.
Fig. 2 is the stereogram of the major component of this actuator internal structure of expression.
Fig. 3 is the sectional view of A-A line among Fig. 2 of relation of expression cam of this actuator and stop member.
The working of an invention form
Hereinafter specify form of implementation of the present invention with reference to accompanying drawing.
Fig. 1 is the side view that expression actuator for valve of the present invention is installed to the state on the valve.Fig. 2 is the stereogram of the major component of this actuator internal structure of expression.Fig. 3 is the sectional view of A-A line among Fig. 2 of relation of expression cam of this actuator and stop member.
The 1st, actuator for valve of the present invention suitably is illustrated on the protection housing 11 that holds, protects drive portion, and the output shaft 12 outstanding from housing 11 lower ends is connected in line by the axostylus axostyle of coupling with valve V.
The 2nd, open and close the reversed motor that direction is rotated above-mentioned output shaft 12 towards valve V, be fixed on along on the dividing plate of cutting apart up and down in the housing 11.
The 31st, the worm screw of transmitting said motor 2 power, with worm gear 32 engagements that pivotally are supported on the above-mentioned output shaft 12, by the driving of motor 2, worm gear 32 rotates with output shaft 12 irrelevantly.32,32a is integral, simultaneously rotation.
The 4th, have the internal gear of some outer peripheral teeth 41 and interior all teeth 42, pivotally be supported on the running shaft 5 of the disc spring described later that is used to reel.Outer peripheral teeth 41 and the gear 32a engagement that is integral with above-mentioned worm gear 32 works.
The 6th, be fixed on first control gear on this running shaft 5, control the rotation of output shaft 12 and the rotation of running shaft 5 with second control gear described later.
The 7th, with a plurality of planetary pinions of some outer peripheral teeth 61 common engagements of all teeth 42 and above-mentioned first control gear 6 in above-mentioned internal gear some, pivotally be supported on axle supports on the below of running shaft 5 8a, second control gear 8 by pin 71 respectively.8a, 8 is integral and rotation simultaneously.
The 9th, disc spring, its inner is fixed on the above-mentioned running shaft 5, and the outer end is fixed on the part of housing 11, reels by the rotation of running shaft 5.
The 10th, be used to control the electromagnetic brake that above-mentioned running shaft 5 rotates, be connected rotatably on the running shaft 5 by the reduction gear that comprises fixed gear.
In Fig. 3,12a is the cam that is fixed on the above-mentioned output shaft 12, by the rotation of the restriction of the stop member 12b on the part that is fixed on housing 11 output shaft 12.
Among the figure, LS1, LS2 promote trigger, make contact become the sensitive switch of ON, OFF by the cam (not shown) that is fixed on the output shaft 12, and the open and-shut mode of detection valve V carries out the energising control of motor 2.
In addition, LSR promotes trigger, makes contact become the sensitive switch of ON, OFF by the cam (not shown) that is fixed on the running shaft 5, plays detection disc spring 9 and whether reels.
The 51st, the counter-force by valve during the valve over power is moved worm screw 31 vertically, promotes trigger, makes contact become the sensitive switch of OFF with the disk that is arranged on the worm shaft, detects the load of valve, carries out the energising control of motor 2.
The 52nd, pressure spring when valve V is rated load when following, does not allow worm screw 31 move vertically, plays the rated load of setting valve.
Below, specifically describe the effect and the effect of the actuator of the present invention of the illustrated example of above-mentioned formation according to the present invention.
When do not reel at disc spring 9, under the valve V closing state, when motor 2 energisings were further closed valve V, by means of the rotation of motor 2 rotors, worm screw 31 was rotated, and irrespectively rotated with worm gear 32,32a and the output shaft 12 of this worm meshing.
By means of the rotation of gear 32a, the internal gear 4 that meshes with several outer peripheral teeth 41 irrespectively rotates with running shaft 5.
At this moment, contact with stop member 12b with the cam 12a of output shaft 12 one, stop it to continue rotation, therefore, several planetary pinions 7 are in the state that can not revolve round the sun, and the rotating force of planetary pinion 7 passes to first control gear 6.
By means of the rotation of planetary pinion 7, first control gear 6 rotates, running shaft 5 rotations, coiling disc spring 9.
When disc spring 9 was fully reeled, sensitive switch LSR detected this state, cut off the energising of motor 2, and meanwhile, to electromagnetic brake 10 energisings, because the rotation of its rotor is applied braking, so running shaft 5 is in stationary state, disc spring 9 keeps the pressure accumulation state.
Under the pressure accumulation state of this disc spring 9, switch on to open valve to motor 2, worm screw 31 and worm gear 32 rotate, at this moment, by means of the rotation of internal gear 4, with a plurality of planetary pinions 7 desires rotation of all tooth 42 engagements in this internal gear some, but because running shaft 5 is in stationary state, therefore, planetary pinion 7 carries out the one side of so-called planet gyration and the revolution motion of some external tooths 61 engagement rotations on one side of first control gear 6.
Along with the revolution of planetary pinion 7, second control gear 8 is done the rotation that has nothing to do with running shaft 5 by pivotally several pin 71 pushings of support planetary gears 7.
By means of the rotation of second control gear 8, with output shaft 12 be that the gear wheel in large diameter 81 of one rotates, valve V is opened in the direction rotation that output shaft 12 is opened towards valve.
At the pressure accumulation state of disc spring 9, be under the stationary state of running shaft 5, the rotating force of motor 2 all passes to second control gear 8 by planetary pinion 7, therefore, and when motor 2 is reversed, all gears rotate towards the direction opposite with above-mentioned sense of rotation, cut-off valve V.
Then, by means of the positive and negative rotation of motor 2, valve V carries out on-off action under the pressure accumulation state of disc spring 9.
When valve rotates towards closed condition; because of making the valve load, the foreign matter of nipping becomes rated load when above; the counter-force of valve shaft lever is by gear wheel in large diameter 81, internal gear 4, worm gear 32 effects; make worm screw 31 along the worm screw axial motion; and the moment of torsion that is installed on 31 of the worm screws is adjusted spring 52 compressions; above-mentioned worm screw is moved axially along this; be arranged on the trigger of the disk promotion torque switch 51 on the worm shaft; make contact become OFF; cut off the power supply of said motor 2; stop the rotation of motor, thus Protective valve V and actuator 1.
Under the open mode of valve V, when primary power supply being had a power failure, remove the excitation of electromagnetic brake 10 when disaster such as earthquake takes place, because rotor is in free state, therefore, and under the restoring force effect of the disc spring under the pressure accumulation state 9, running shaft 5 rotations.
At this moment, worm gear 32 and worm screw 31 engagements stop rotation, because internal gear 4 is in stationary state, so by means of the rotation of first control gear 6, several planetary pinions 7 mesh with some interior all teeth 42 of internal gear 4, rotatablely move 8 rotations of second control gear, cut-off valve V as planet.
Remove power failure, behind the power up, the action of the above-mentioned disc spring of reeling remains on the pressure accumulation state with disc spring.
The foregoing description is although understand the situation of cut-off valve when urgent, still, opens the situation of valve when urgent, also can change the structure of actuator, so as when valve to be opened the coiling disc spring.
Claims (2)
1. actuator for valve, by reversing the driving of motor (2), make the output shaft (12) that is connected with axostylus axostyle just from the outstanding valve (V) of the housing (11) that holds drive portion, anti-90 degree rotate and open and close valve, it is characterized in that, on running shaft (5), pivotally be supported with driving by means of described motor (2), reach the internal gear (4) of worm gear (32) rotation that pivotally is supported on the described output shaft (12) by worm screw (31), on second control gear (8) that props up by running shaft (5) pivot, pivotally be supported with interior all teeth (42) of this internal gear by pin (71) respectively and be fixed on several planetary pinions (7) of the common engagement of outer peripheral teeth (61) of first control gear (6) on this running shaft (5), on described output shaft (12), be fixed with gear wheel in large diameter (81) with this gear (8) engagement, simultaneously, described running shaft (5) is provided with the disc spring (9) of reeling by the rotation of running shaft (5), also be provided with electromagnetic brake (10), this electromagnetic brake (10) stops the uncoiling of this disc spring (9) when energising, when cutting off energising, remove the interception of this disc spring (9) uncoiling.
2. actuator for valve according to claim 1; it is characterized in that; when valve rotates towards closing direction; because of making the valve load, the foreign matter of nipping becomes rated load when above; the counter-force of valve shaft lever is by gear wheel in large diameter (81); internal gear (4); worm gear (32) effect; make worm screw (31) along the worm screw axial motion; and the moment of torsion that is installed on worm screw (31) axle is adjusted spring (52) compression; described worm screw moves axially along this; be arranged on the trigger of the disk promotion torque switch (51) on the worm shaft, make contact become OFF, cut off the power supply of described motor (2); stop the rotation of motor, thus Protective valve V and actuator (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138432 CN1419067A (en) | 2001-11-12 | 2001-11-12 | Actuator for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01138432 CN1419067A (en) | 2001-11-12 | 2001-11-12 | Actuator for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1419067A true CN1419067A (en) | 2003-05-21 |
Family
ID=4674585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01138432 Pending CN1419067A (en) | 2001-11-12 | 2001-11-12 | Actuator for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1419067A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952459B (en) * | 2005-09-09 | 2010-08-11 | 株式会社山武 | Electric actuating mechanism |
| CN102687390A (en) * | 2010-03-31 | 2012-09-19 | 西部电机株式会社 | Actuator |
| CN103511717A (en) * | 2012-06-25 | 2014-01-15 | （株）银河 | Spring-return valve actuator using planetary gear train |
| CN106931225A (en) * | 2017-03-08 | 2017-07-07 | 上海卓思智能科技股份有限公司 | A kind of valve actuator and valve actuator |
| CN108386593A (en) * | 2017-02-03 | 2018-08-10 | 阿自倍尔株式会社 | Operator |
| CN109707770A (en) * | 2019-02-13 | 2019-05-03 | 中原内配（上海）电子科技有限公司 | Brake |
-
2001
- 2001-11-12 CN CN 01138432 patent/CN1419067A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952459B (en) * | 2005-09-09 | 2010-08-11 | 株式会社山武 | Electric actuating mechanism |
| CN102687390A (en) * | 2010-03-31 | 2012-09-19 | 西部电机株式会社 | Actuator |
| CN102687390B (en) * | 2010-03-31 | 2015-02-11 | 西部电机株式会社 | Actuator |
| CN103511717A (en) * | 2012-06-25 | 2014-01-15 | （株）银河 | Spring-return valve actuator using planetary gear train |
| CN103511717B (en) * | 2012-06-25 | 2015-12-16 | （株）银河 | Make use of the spring return type valve actuator of a planetary gears |
| CN108386593A (en) * | 2017-02-03 | 2018-08-10 | 阿自倍尔株式会社 | Operator |
| CN106931225A (en) * | 2017-03-08 | 2017-07-07 | 上海卓思智能科技股份有限公司 | A kind of valve actuator and valve actuator |
| CN109707770A (en) * | 2019-02-13 | 2019-05-03 | 中原内配（上海）电子科技有限公司 | Brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |