CN202521027U - Manual switching control device for electric actuation mechanism - Google Patents
Manual switching control device for electric actuation mechanism Download PDFInfo
- Publication number
- CN202521027U CN202521027U CN2012201198139U CN201220119813U CN202521027U CN 202521027 U CN202521027 U CN 202521027U CN 2012201198139 U CN2012201198139 U CN 2012201198139U CN 201220119813 U CN201220119813 U CN 201220119813U CN 202521027 U CN202521027 U CN 202521027U
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- worm gear
- cam
- clutch cover
- support plate
- cam support
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- Expired - Fee Related
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Abstract
The utility model discloses a manual switching control device for an electric actuation mechanism. The manual switching control device consists of a switching handle, a positioning bolt, an O-shaped seal ring, a cam, a cam support chip, a torsion spring, an output shaft, a worm gear, a clutch lining, a spring and a hand wheel. The cam support chip is mounted on the cam, the switching handle is equipped with the O-shaped seal ring and is mounted in a machine body, and then a cam assembly and the torsion spring are respectively mounted on the switching handle, and the switching handle is fixed on the machine body by positioning screws. The worm gear, the clutch lining, the spring and the hand wheel are sequentially mounted on the output shaft, a key slot and a connecting pin are respectively arranged between the hand wheel and the clutch lining, and between the clutch lining and the worm gear, the cam support chip is close to the clutch lining, and cam support chip can rotate along with the up-and-down switching of the switching handle. According to the manual switching control device, the connection of the clutch lining, the hand wheel and the worm gear is controlled through the support chip, so that the electric actuation mechanism is enabled to be in the manual or electric working state. The manual switching control device is simple and more reasonable in structure, and is more convenient in use.
Description
Technical field
The utility model relates to a kind of electric actuator, particularly a kind of electric actuator manual switchover control gear.
Background technique
Electric actuator is claimed YE again, is a kind of drive unit that straight line can be provided or rotatablely move, and it utilizes certain driving source and work under certain control signal effect.
Electric actuator generally adopts electric drive.Be equipped with manual switching mechanism in the electric valve actuator; Be used for switching in the time of to use by manually valve being controlled owing to reasons such as outage cause when electronic do-part; And existing manual switching mechanism is when needing manual control valve; Need when pressing manual Joystick, carry out the switch control of valve, so just make a people under manual state, be difficult to valve is controlled.Simultaneously, existing manual switching device can automatically restore to the function that electronic do-part is controlled after not possessing electronic do-part functional rehabilitation.
The model utility content
Deficiency to above-mentioned existing technology; The technical problem that the utility model will solve is: how to provide a kind of can when electronic do-part goes wrong, can realize electronic and manually between switch; Can automatically switch to the electric actuator manual switchover control gear of electronic do-part when electronic do-part resumes operation simultaneously; Possesses easy switching, the characteristics that automaticity is high.
In order to solve the problems of the technologies described above, adopted following technological scheme in the utility model:
A kind of electric actuator manual switchover control gear comprises the output shaft that vertically is arranged in the body, is set in handwheel, spring, clutch cover and worm gear on the output shaft from top to bottom successively; Handwheel and worm gear form through bearing and output shaft respectively and are rotatably assorted; Clutch cover forms and can cooperate in axial sliding with output shaft through slide key; Also be respectively equipped with connecting pin between handwheel and the clutch cover and between clutch cover and the worm gear, when clutch cover upwards slides, can be connected with handwheel, be connected with worm gear when clutch cover can pass through connecting pin during to lower slider through connecting pin; Said spring is connected to when making normality between handwheel and the clutch cover clutch cover and worm gear and forms and be connected; Also comprise switching mechanism; It is characterized in that; Said switching mechanism comprises switching handle, cam and cam support plate; Said switching handle comprises that is positioned at the connecting end that body is outer and be used for manipulatable end and bending extension a to body of rotating operation and be used for joining with clutch cover; Be positioned at the body surface position on the said connecting end and be provided with the O RunddichtringO, said cam is positioned at the connecting end end position and has towards the axial convexity of output, also is provided with torsion spring between cam and the body; Said cam support plate is between cam and clutch cover and worm gear three; Said cam support plate upper end is rotatably connected on the cam, is provided with the Returnning spring that is compressive state between cam support plate lower end and the cam, and the upper end of said worm gear has the eccentric step that matches with the cam support plate; Said cam support plate can move upward with the downward switching of the manipulatable end that switches handle; Said cam support plate can drive clutch cover and move upward to break away from worm gear and to be connected to handwheel when moving upward, its lower end can be paid and withstand on the upper-end surface of worm gear to the output shaft direction under action of reset spring when the cam support plate moved upward simultaneously, and the cocked bead of the eccentric step of worm gear can make the cam support plate eject landing from the worm gear upper-end surface when said worm gear rotated.
When the utility model used, worm gear connected the electronic input end of electric actuator, and output shaft connects output terminal; Under conventional state; Clutch cover is positioned at the lower end and is connected with worm gear formation under the spring force effect, power is delivered to output shaft through worm gear, clutch cover, realizes electric power control.When sudden power; Worm gear stops operating; Can handle the manipulatable end that switches handle this moment down switches; And then drive the cam support plate and overcome spring force and move upward clutch cover is made progress jack-up to break away from worm gear and to be connected to handwheel, simultaneously the lower end of cam support plate withstand on worm gear the upper-end surface to form fixed support.After the operator both can loose one's grip like this handwheel was handled to realize manual control, power is delivered to output shaft through handwheel, clutch cover.Simultaneously; When power recovery, said worm gear recovers to rotate, and the cocked bead of the eccentric step of worm gear upper end can make the cam support plate eject landing from the worm gear upper-end surface; Clutch cover resets downwards under the elastic force effect of spring, and clutch cover breaks away from handwheel and is connected with worm gear again.Realized automatically restoring to the function that electronic do-part carries out electronic control.
In sum; The manual switchover control gear is through the annexation of cam support plate control clutch cover and handwheel and worm gear in the described electric actuator of the utility model; Make electric actuator be in manual or electronic working state; And the worm gear that the cam support plate of the utility model connects when electronic part is can proper functioning the time, and actuator automatically switches to electronic working state, realizes electronicly preferentially valve being controlled.So possess easy switching, the advantage that automaticity is high.
Description of drawings
Fig. 1 is the structural representation of output shaft part in the utility model.
Fig. 2 is the structural representation of the switching handling portion of switching mechanism in the utility model.
Fig. 3 is the plan view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and embodiment the structure of the utility model is done further to specify.
During practical implementation, like Fig. 1-shown in Figure 3, a kind of electric actuator manual switchover control gear comprises the output shaft 8 that vertically is arranged in the body, is set in handwheel 11, spring 10, clutch cover 9 and worm gear 7 on the output shaft 8 from top to bottom successively; Handwheel 11 forms through bearing and output shaft 8 respectively with worm gear 7 and is rotatably assorted; Clutch cover 9 forms and can cooperate in axial sliding with output shaft 8 through slide key; Also be respectively equipped with connecting pin 12 between handwheel 11 and the clutch cover 9 and between clutch cover 9 and the worm gear 7, when clutch cover 9 upwards slides, can be connected with handwheel 11, be connected with worm gear 7 when clutch cover 9 can pass through connecting pin 12 during to lower slider through connecting pin 12; Said spring 10 is connected to when making normality between handwheel 11 and the clutch cover 9 clutch cover 9 and worm gear 7 and forms and be connected; Also comprise switching mechanism; Said switching mechanism comprises switching handle 1, cam 3 and cam support plate 4; Said switching handle 1 comprises that is positioned at the connecting end that body is outer and be used for manipulatable end and bending extension a to body of rotating operation and be used for joining with clutch cover 9; Be positioned at the body surface position on the said connecting end and be provided with O RunddichtringO 2; Said cam 3 is positioned at the connecting end end position and has towards the axial convexity of output; Also be provided with torsion spring 5 between cam 3 and the body, said cam support plate 4 is between cam 3 and clutch cover 9 and worm gear 7 threes, and said cam support plate 4 upper ends are rotatably connected on the cam 3; Be provided with the Returnning spring 13 that is compressive state between cam support plate 4 lower ends and the cam 3; The upper end of said worm gear 7 has the eccentric step that matches with cam support plate 4, and said cam support plate 4 can move upward with the downward switching of the manipulatable end that switches handle 1, and said cam support plate 4 can drive clutch cover 9 and move upward to break away from worm gear 7 and to be connected to handwheel 11 when moving upward; Its lower end can be paid and withstand on the upper-end surface of worm gear 7 to output shaft 8 directions under Returnning spring 13 effects when cam support plate 4 moved upward simultaneously, and the cocked bead of the eccentric step of worm gear can make cam support plate 4 eject landing from worm gear 7 upper-end surfaces when said worm gear 7 rotated.Label 6 is a positioning screwn among Fig. 2, the usefulness of location when being used to switch the handle installation.
Wherein, the cam support plate is connected on the cam through Returnning spring, when handle drive cam support plate makes progress the cam support plate can be stuck on the worm gear when pressing to switch reliably, and the cam support plate can automatically reset when the cam support plate breaks away from worm gear simultaneously.The eccentric step that matches with the cam support plate is arranged in the upper end of worm gear; The cocked bead of eccentric step can be with the landing from the worm gear of cam support plate when worm gear rotates; This moment, the cam support plate automatically reset, and clutch cover slides through connecting pin downwards and is connected with worm gear under the effect of spring, at this moment the worm gear drives clutch cover; Clutch cover drives output shaft and carries out work, makes electric actuator get into electronic working state.
When the needs handwheel rotates; Press switching handle drive cam support plate and move upward, clutch cover is upwards slided, be connected when clutch cover slides into the handwheel connecting pin; This moment, the cam support plate was stuck in the upper-end surface of worm gear; Handwheel drives the clutch cover rotation, and clutch cover drives output shaft and carries out work, makes electric actuator get into the manual work state.
Claims (1)
1. an electric actuator manual switchover control gear comprises the output shaft that vertically is arranged in the body, is set in handwheel, spring, clutch cover and worm gear on the output shaft from top to bottom successively; Handwheel and worm gear form through bearing and output shaft respectively and are rotatably assorted; Clutch cover forms and can cooperate in axial sliding with output shaft through slide key; Also be respectively equipped with connecting pin between handwheel and the clutch cover and between clutch cover and the worm gear, when clutch cover upwards slides, can be connected with handwheel, be connected with worm gear when clutch cover can pass through connecting pin during to lower slider through connecting pin; Said spring is connected to when making normality between handwheel and the clutch cover clutch cover and worm gear and forms and be connected; Also comprise switching mechanism; It is characterized in that; Said switching mechanism comprises switching handle, cam and cam support plate; Said switching handle comprises that is positioned at the connecting end that body is outer and be used for manipulatable end and bending extension a to body of rotating operation and be used for joining with clutch cover; Be positioned at the body surface position on the said connecting end and be provided with the O RunddichtringO, said cam is positioned at the connecting end end position and has towards the axial convexity of output, also is provided with torsion spring between cam and the body; Said cam support plate is between cam and clutch cover and worm gear three; Said cam support plate upper end is rotatably connected on the cam, is provided with the Returnning spring that is compressive state between cam support plate lower end and the cam, and the upper end of said worm gear has the eccentric step that matches with the cam support plate; Said cam support plate can move upward with the downward switching of the manipulatable end that switches handle; Said cam support plate can drive clutch cover and move upward to break away from worm gear and to be connected to handwheel when moving upward, its lower end can be paid and withstand on the upper-end surface of worm gear to the output shaft direction under action of reset spring when the cam support plate moved upward simultaneously, and the cocked bead of the eccentric step of worm gear can make the cam support plate eject landing from the worm gear upper-end surface when said worm gear rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201198139U CN202521027U (en) | 2012-03-27 | 2012-03-27 | Manual switching control device for electric actuation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201198139U CN202521027U (en) | 2012-03-27 | 2012-03-27 | Manual switching control device for electric actuation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202521027U true CN202521027U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201198139U Expired - Fee Related CN202521027U (en) | 2012-03-27 | 2012-03-27 | Manual switching control device for electric actuation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202521027U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235470A (en) * | 2014-08-18 | 2014-12-24 | 浙江精杰实业有限公司 | Explosive-proof straight travel electric actuator |
| CN105952807A (en) * | 2016-07-08 | 2016-09-21 | 天津市津达执行器有限公司 | Manual operation and electric operation matching switching mechanism of electric actuator |
| CN107314058A (en) * | 2017-05-23 | 2017-11-03 | 湖南罗托克执行器有限公司 | A kind of YE hand-electric arrangement of clutch |
| CN108374925A (en) * | 2018-04-13 | 2018-08-07 | 天津百利二通机械有限公司 | The electromagnetic clutch structure and its working method of electric device for valve |
| CN109578680A (en) * | 2019-01-25 | 2019-04-05 | 常州机电职业技术学院 | Valve actuator hand-operated structures and valve actuator |
-
2012
- 2012-03-27 CN CN2012201198139U patent/CN202521027U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235470A (en) * | 2014-08-18 | 2014-12-24 | 浙江精杰实业有限公司 | Explosive-proof straight travel electric actuator |
| CN105952807A (en) * | 2016-07-08 | 2016-09-21 | 天津市津达执行器有限公司 | Manual operation and electric operation matching switching mechanism of electric actuator |
| CN107314058A (en) * | 2017-05-23 | 2017-11-03 | 湖南罗托克执行器有限公司 | A kind of YE hand-electric arrangement of clutch |
| CN108374925A (en) * | 2018-04-13 | 2018-08-07 | 天津百利二通机械有限公司 | The electromagnetic clutch structure and its working method of electric device for valve |
| CN109578680A (en) * | 2019-01-25 | 2019-04-05 | 常州机电职业技术学院 | Valve actuator hand-operated structures and valve actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121107 Termination date: 20150327 |
|
| EXPY | Termination of patent right or utility model |