CN103244737B - Manual and electric switching mechanism for valve actuator - Google Patents
Manual and electric switching mechanism for valve actuator Download PDFInfo
- Publication number
- CN103244737B CN103244737B CN201310190610.8A CN201310190610A CN103244737B CN 103244737 B CN103244737 B CN 103244737B CN 201310190610 A CN201310190610 A CN 201310190610A CN 103244737 B CN103244737 B CN 103244737B
- Authority
- CN
- China
- Prior art keywords
- clutch
- valve actuator
- worm gear
- output shaft
- manual
- 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.)
- Expired - Fee Related
Links
Abstract
The invention provides a manual and electric switching mechanism for a valve actuator. The manual and electric switching mechanism for the valve actuator comprises a hand wheel, a bearing, an output shaft, a clutch, a worm gear and a switching deice, wherein the hand wheel is in turning fit with the output shaft through the bearing, the worm gear is in turning fit with the output shaft, the clutch and the output shaft are both provided with splines which are used for enabling the clutch to slide along the output shaft axially and rotate with the output shaft synchronously, and grasping claws for being connected with the hand wheel or the worm gear are arranged at two axial ends of the clutch respectively. According to the manual and electric switching mechanism for the valve actuator, a switching handle is pulled upward so as to drive a sliding shaft, a flexible shaft and a pin shaft to move upward sequentially, a switching block rotates to push the clutch to move upward to be separated from the worm gear, an upright rod is kept upright on the end face of the worm gear under the effect of tension force of a tension spring, at the moment, the grasping claws of the clutch are meshed with the hand wheel, and the valve actuator is in a manual state. Compared with an existing switching mechanism, the manual and electric switching mechanism for the valve actuator has the advantages of being compact in structure, light in weight and low in manufacturing cost.
Description
Technical field
The present invention relates to manually a kind of and electric switch-over mechanism, particularly relate to a kind of for the manual of valve actuator and electric switch-over mechanism.
Background technique
Valve actuator is a very important field apparatus in industrial process control system, and its energy is taken conveniently, Installation and Debugging are simple, obtains applying comparatively widely at industrial departments such as electric power, metallurgy, oil, chemical industry.Valve actuator is generally made up of motor, main drive gear, range controlling mechanism, torque-limiting mechanism, handwheel, manual/electric switching mechanism etc.Manual/electric switching mechanism divides by function, can be divided into full manual switchover, full-automatic switching and semi-automatic switching three kinds of modes.Full manual switching mechanism, the mutual switching between namely manual and electronic relies on manually complete completely, and this switching mechanism is very unfavorable for the normal work of Electric actuator, is progressively eliminated.All-automatic switch structure, between namely manual and electronic, switching completes all automatically mutually, this switching mechanism due to the application of its structural limitations less.Semi-automatic switcher structure, namely electronicly to be completed to manual switching by manpower, and manually to electronic switching by having automatically reset, compare with all-automatic switch structure with full manual switching mechanism, remain their respective advantages, eliminate the shortcoming of the two, be widely used on the valve actuator of production at present.Existing switching mechanism adopts mostly to be pulled handle cam is rotated, thus the mode that band dynamic frame tye shift fork promotes clutch carries out manually arriving electronic switching, this switching mechanism because of structure greatly, the shortcoming such as Heavy Weight is restricted in commercial Application.The problems referred to above should be paid attention to and the problem solved in the design and production process of the manual/electric switching mechanism of valve actuator.
Summary of the invention
The object of this invention is to provide a kind of problem solving the shortcomings such as existing switching mechanism structure is large, Heavy Weight for the manual of valve actuator and electric switch-over mechanism and be restricted in commercial Application.
Technical solution of the present invention is:
A kind of for the manual of valve actuator and electric switch-over mechanism, comprise handwheel, bearing, output shaft, clutch, worm gear and COMM communication, described handwheel is formed by bearing and output shaft and is rotatably assorted, described worm gear and output shaft are formed and are rotatably assorted, described clutch and output shaft are equipped with and slide axially and the spline rotated with output shaft synchronous along output shaft for clutch, the axial two ends of described clutch are respectively equipped with grabs conjunction pawl for what connect handwheel or worm gear, described output shaft is through the stage clip being in pressured state, the end of described stage clip connects clutch.
Described COMM communication comprises switching handle, connecting pin, sliding axle, flexible axle, bearing pin, up-and-down rod, handoff block, circular shaft and extension spring, described switching handle and connecting pin form interference fit, the upper end of described sliding axle and connecting pin are formed and are rotatably assorted, the lower end of described sliding axle connects one end of flexible axle, the other end of described flexible axle has block through described pinned connection, described flexible axle and bearing pin form Spielpassung, one end of described bearing pin is through described handoff block, the other end of described bearing pin connects up-and-down rod, the extension spring being in extended state is provided with between described bearing pin and handoff block, the two ends of described extension spring connect bearing pin and handoff block respectively, described bearing pin and handoff block, circular shaft and handoff block, circular shaft and casing are all formed and are rotatably assorted.
Upwards pull switching handle, thus drive sliding axle, flexible axle, bearing pin to move upward successively, handoff block is rotated to promote clutch moves and is thrown off with worm gear, up-and-down rod is kept upright on worm gear end face under tension spring tension effect, clutch closes pawl engagement handwheel by grabbing, and valve actuator is in manual mode.
Further improvement is: the sidewall of described handoff block is provided with the projection moved axially for promoting clutch, and described projection is located between handoff block and clutch, projection contacts clutch.
Further improvement is: described handwheel is connected on casing by flexible shaft core, is provided with seal ring between described handwheel and casing.
Further improvement is: described switching handle is the switching handle adopting working of plastics to make.
Further improvement is: described sliding axle and casing are formed and be slidably matched, and are provided with O RunddichtringO between described sliding axle and casing.
Further improvement is: described worm gear is symmetrically arranged with for clutch grab the pin closing pawl and engage.
Further improvement is, worm gear wheel during motoring condition, and up-and-down rod is toppled over because of the frictional force between upright worm and wheel, and clutch closes pawl engaging worm wheel by grabbing under the effect of stage clip, and valve actuator is in motoring condition.
The present invention relates to a kind of for valve actuator manually and electric switch-over mechanism, compare existing switching mechanism, there is the advantage of compact structure, lightweight, low cost of manufacture.When the state of carrying out valve actuator switches, upwards pull switching handle, thus drive sliding axle, flexible axle, bearing pin to move upward successively, handoff block is rotated and is promoted clutch moves and throws off with worm gear, and up-and-down rod is kept upright on worm gear end face under tension spring tension effect, now clutch is grabbed and is closed pawl engagement handwheel, and valve actuator is in manual mode.Worm gear wheel during motoring condition, up-and-down rod is toppled over because of the frictional force between upright worm and wheel, and clutch closes pawl engaging worm wheel by grabbing under the effect of stage clip, and valve actuator is in motoring condition, and the state realizing valve actuator switches.
The invention has the beneficial effects as follows: the present invention is a kind of for the manual of valve actuator and electric switch-over mechanism, when the state of carrying out valve actuator switches, upwards pull switching handle, thus drive sliding axle, flexible axle, bearing pin to move upward successively, meanwhile handoff block is rotated and is promoted clutch moves and throws off with worm gear, and up-and-down rod is kept upright on worm gear end face under tension spring tension effect, now clutch is grabbed and is closed pawl engagement handwheel, and valve actuator is in manual mode.Worm gear wheel during motoring condition, up-and-down rod is toppled over because of the frictional force between upright worm and wheel, and clutch closes pawl engaging worm wheel by grabbing under the effect of stage clip, and valve actuator is in motoring condition, and the state realizing valve actuator switches.This kind for valve actuator manually and electric switch-over mechanism, compare existing switching mechanism, there is the advantage of compact structure, lightweight, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 be in Fig. 1 A to the anatomical connectivity figure of handoff block and circular shaft, bearing pin, flexible axle, extension spring;
Fig. 3 be in Fig. 1 B to the anatomical connectivity figure of handoff block and sliding axle, connecting pin;
Fig. 4 is the structural representation switching handle in the present invention;
Wherein: 1-handwheel, 2-sliding axle, 3-switches handle, 4-connecting pin, 5-O RunddichtringO, 6-flexible axle, 7-bearing pin, 8-block, 9-handoff block, 10-up-and-down rod, 11-worm gear, 12-pin, 13-clutch, 14-stage clip, 15-casing, 16-flexible shaft core, 17-output shaft, 18-bearing, 19-extension spring, 20-circular shaft.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the present embodiment provides a kind of for the manual of valve actuator and electric switch-over mechanism, comprise handwheel 1, bearing 18, output shaft 17, clutch 13, worm gear 11 and COMM communication, described handwheel 1 is formed by bearing 18 and output shaft 17 and is rotatably assorted, described worm gear 11 is formed with output shaft 17 and is rotatably assorted, described clutch 13 and output shaft 17 be equipped with for clutch 13 along output shaft 17 slide axially or with the spline of output shaft 17 synchronous axial system, the axial two ends of described clutch 13 are respectively equipped with grabs conjunction pawl for what connect handwheel 1 or worm gear 11, described output shaft 17 is through the stage clip 14 being in pressured state, the end of described stage clip 14 connects clutch 13.
As Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, described COMM communication comprises sliding axle 2, switch handle 3, connecting pin 4, flexible axle 6, bearing pin 7, handoff block 9, up-and-down rod 10, extension spring 19 and circular shaft 20, described switching handle 3 forms interference fit with connecting pin 4, the upper end of described sliding axle 2 and connecting pin 4 are formed and are rotatably assorted, the lower end of described sliding axle 2 connects one end of flexible axle 6, the other end of described flexible axle 6 is connected with block 8 through described bearing pin 7, described flexible axle 6 forms Spielpassung with bearing pin 7, one end of described bearing pin 7 is through described handoff block 9, the other end of described bearing pin 7 connects up-and-down rod 10, the extension spring 19 being in extended state is provided with between described bearing pin 7 and handoff block 9, two ends connecting pin 4 axle and the handoff block 9 respectively of described extension spring 19, described bearing pin 7 and handoff block 9, circular shaft 20 and handoff block 9, circular shaft 20 and casing 15 are all formed and are rotatably assorted.The sidewall of described handoff block 9 is provided with the projection moved axially for promoting clutch 13, and described projection is located between handoff block 9 and clutch 13, projection contacts clutch 13.Described handwheel 1 is connected on casing 15 by flexible shaft core 16, is provided with seal ring between described handwheel 1 and casing 15.Described switching handle 3 is the switching handle 3 adopting working of plastics to make.Described sliding axle 2 is formed with casing 15 and is slidably matched, and is provided with O RunddichtringO 5 between described sliding axle 2 and casing 15.Described worm gear 11 is symmetrically arranged with for clutch grab the pin 12 closing pawl and engage.
The present embodiment a kind of for valve actuator manually and electric switch-over mechanism, compares existing switching mechanism, there is the advantage of compact structure, lightweight, low cost of manufacture.When the state of carrying out valve actuator switches, upwards pull and switch handle 3, thus drive sliding axle 2, flexible axle 6, bearing pin 7 to move upward successively, meanwhile handoff block 9 is rotated and is promoted clutch 13 moves and throws off with worm gear 11, and up-and-down rod 10 is kept upright on worm gear 11 end face under the effect of extension spring 19 pulling force, now clutch 13 is grabbed and is closed pawl engagement handwheel 1, and valve actuator is in manual mode; During motoring condition, worm gear 11 rotates, up-and-down rod 10 is toppled over because of the frictional force between up-and-down rod 10 and worm gear 11, clutch 13 closes pawl engaging worm wheel 11 by grabbing under the effect of stage clip 14, and valve actuator is in motoring condition, and the state realizing valve actuator switches.
The beneficial effect of the present embodiment is: the present embodiment is a kind of for the manual of valve actuator and electric switch-over mechanism, when the state of carrying out valve actuator switches, upwards pull switching handle, handoff block is rotated and is promoted clutch moves and throws off with worm gear, and up-and-down rod is kept upright on worm gear end face under tension spring tension effect, now clutch is grabbed and is closed pawl engagement handwheel, and valve actuator is in manual mode; Worm gear wheel during motoring condition, up-and-down rod is toppled over because of the frictional force between upright worm and wheel, and clutch closes pawl engaging worm wheel by grabbing under the effect of stage clip, and valve actuator is in motoring condition, and the state realizing valve actuator switches.This kind for valve actuator manually and electric switch-over mechanism, compare existing switching mechanism, there is the advantage of compact structure, lightweight, low cost of manufacture.
Claims (7)
1. one kind for valve actuator manually and electric switch-over mechanism, it is characterized in that: comprise handwheel (1), bearing (18), output shaft (17), clutch (13), worm gear (11) and COMM communication, described handwheel (1) is formed by bearing (18) and output shaft (17) and is rotatably assorted, described worm gear (11) and output shaft (17) are formed and are rotatably assorted, described clutch (13) and output shaft (17) be equipped with for clutch (13) along output shaft (17) slide axially and with the spline of output shaft (17) synchronous axial system, the axial two ends of described clutch (13) are respectively equipped with grabs conjunction pawl for what connect handwheel (1) or worm gear (11), described output shaft (17) is through the stage clip (14) being in pressured state, the end of described stage clip (14) connects clutch (13),
Described COMM communication comprises switching handle (3), connecting pin (4), sliding axle (2), flexible axle (6), bearing pin (7), up-and-down rod (10), handoff block (9), circular shaft (20) and extension spring (19), described switching handle (3) and connecting pin (4) form interference fit, the upper end of described sliding axle (2) and connecting pin (4) are formed and are rotatably assorted, the lower end of described sliding axle (2) connects one end of flexible axle (6), the other end of described flexible axle (6) is connected with block (8) through described bearing pin (7), described flexible axle (6) and bearing pin (7) form Spielpassung, one end of described bearing pin (7) is through described handoff block (9), the other end of described bearing pin (7) connects up-and-down rod (10), the extension spring (19) being in extended state is provided with between described bearing pin (7) and handoff block (9), two ends connecting pin (4) axle and the handoff block (9) respectively of described extension spring (19), described bearing pin (7) and handoff block (9), circular shaft (20) and handoff block (9), circular shaft (20) and casing (15) are all formed and are rotatably assorted,
Upwards pulling switching handle (3) drives sliding axle (2), flexible axle (6), bearing pin (7) to move upward successively, handoff block (9) is rotated to promote clutch (13) moves and is thrown off with worm gear (11), up-and-down rod (10) is kept upright on worm gear (11) end face under extension spring (19) pulling force effect, clutch (13) closes pawl engagement handwheel (1) by grabbing, and valve actuator is in manual mode.
2. as claimed in claim 1 for the manual of valve actuator and electric switch-over mechanism, it is characterized in that: the sidewall of described handoff block (9) is provided with the projection moved axially for promoting clutch (13), and described projection is located between handoff block (9) and clutch (13).
3., as claimed in claim 1 for the manual of valve actuator and electric switch-over mechanism, it is characterized in that: described handwheel (1) is connected on casing (15) by flexible shaft core (16), is provided with seal ring between described handwheel (1) and casing (15).
4. as claimed in claim 1 for the manual of valve actuator and electric switch-over mechanism, it is characterized in that: described switching handle (3) is the switching handle (3) adopting working of plastics to make.
5., as claimed in claim 1 for the manual of valve actuator and electric switch-over mechanism, it is characterized in that: described sliding axle (2) and casing (15) are formed and be slidably matched, and are provided with O RunddichtringO (5) between described sliding axle (2) and casing (15).
6. as described in any one of claim 1-5 for valve actuator manually and electric switch-over mechanism, it is characterized in that: described worm gear (11) is symmetrically arranged with for clutch (13) grab the pin (12) closing pawl and engage.
7. as described in any one of claim 1-5 for valve actuator manually and electric switch-over mechanism, it is characterized in that, during motoring condition, worm gear (11) rotates, up-and-down rod (10) is toppled over because of the frictional force between up-and-down rod (10) and worm gear (11), clutch (13) closes pawl engaging worm wheel (11) by grabbing under the effect of stage clip (14), and valve actuator is in motoring condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190610.8A CN103244737B (en) | 2013-05-22 | 2013-05-22 | Manual and electric switching mechanism for valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310190610.8A CN103244737B (en) | 2013-05-22 | 2013-05-22 | Manual and electric switching mechanism for valve actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244737A CN103244737A (en) | 2013-08-14 |
| CN103244737B true CN103244737B (en) | 2015-01-14 |
Family
ID=48924472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310190610.8A Expired - Fee Related CN103244737B (en) | 2013-05-22 | 2013-05-22 | Manual and electric switching mechanism for valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103244737B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB998596A (en) * | 1963-06-27 | 1965-07-14 | Rotork Eng Co Ltd | Improvements in or relating to actuating mechanisms, more particularly for valves |
| US3239616A (en) * | 1964-05-05 | 1966-03-08 | Crane Co | Valve indicator and limit switch combination |
| DE3063618D1 (en) * | 1979-09-28 | 1983-07-07 | Rotork Controls | Actuator with alternative motor or manual drive |
| CN2091393U (en) * | 1991-02-12 | 1991-12-25 | 刘平 | Hand, electric driven switching device of valve electric unit |
| CN2508075Y (en) * | 2001-10-16 | 2002-08-28 | 毛为 | Electric-operated and hand switching mechanism in electric valve executor |
| GB2404717B (en) * | 2003-07-17 | 2005-12-21 | Rotork Controls | Drive mechanisms for valve actuators |
| CN201412585Y (en) * | 2009-05-27 | 2010-02-24 | 天津伯思克仪表技术有限公司 | Automatic/manual switching device of electric actuating mechanism |
| CN203248810U (en) * | 2013-05-22 | 2013-10-23 | 中国能建集团装备有限公司南京技术中心 | Manual-electric switching mechanism for valve driving device |
-
2013
- 2013-05-22 CN CN201310190610.8A patent/CN103244737B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103244737A (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203248810U (en) | Manual-electric switching mechanism for valve driving device | |
| CN202381801U (en) | Manually/electrically-switching device of valve actuator | |
| CN109279531B (en) | Double-drive hoisting device switching mechanism | |
| CN103693148B (en) | The battery-driven car folding device of motor drive and auto-manual | |
| CN203880191U (en) | Manual operation and electric operation switching device of electric actuator | |
| CN102297283B (en) | Manual/electrical operation unperturbed switchover structure of electric operator | |
| CN204327915U (en) | Linking type double-clutch speed changer | |
| CN103244737B (en) | Manual and electric switching mechanism for valve actuator | |
| CN103407882B (en) | Electric detacher and hoisting equipment | |
| CN104482172A (en) | Double-clutch transmission | |
| CN203055708U (en) | Electric operating mechanism for isolation switch | |
| CN203373046U (en) | Main lifting speed reducer for lifting machine | |
| CN202280826U (en) | Hydraulically-controlled speed change mechanism | |
| CN204061853U (en) | A kind of Liang Dang gear shift mechanism | |
| CN204327809U (en) | Linking type double clutch | |
| CN103573090A (en) | Gate opening and closing device | |
| CN104534086A (en) | Electronically-control type differential lock control mechanism and method | |
| CN104143453A (en) | Manual operating device for switching-off and switching-on of electric switch | |
| CN202171053U (en) | Manual/electric operation undisturbed switching structure of electric actuating mechanism | |
| CN201919351U (en) | Clutch device of hand-type miniature combine harvester | |
| CN201345303Y (en) | Energy storing structure of breaker spring operating mechanism | |
| CN202818881U (en) | Rotary cultivator provided with automatic clutch device | |
| CN202487441U (en) | Electric operating mechanism for grounding switch | |
| CN203756009U (en) | Fully-automatic locking device | |
| CN203199924U (en) | Rope changing device arranged in differential gear box and used for ship unloader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20190522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |