CN201373161Y - Manual-drive and electric automatic switching device for electric actuator - Google Patents
Manual-drive and electric automatic switching device for electric actuator Download PDFInfo
- Publication number
- CN201373161Y CN201373161Y CN200920002192U CN200920002192U CN201373161Y CN 201373161 Y CN201373161 Y CN 201373161Y CN 200920002192 U CN200920002192 U CN 200920002192U CN 200920002192 U CN200920002192 U CN 200920002192U CN 201373161 Y CN201373161 Y CN 201373161Y
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- gear
- manual
- electric
- output shaft
- drive
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a manual-drive and electric automatic switching device for an electric actuator, which comprises an output shaft, an electric mechanism, a manual-drive mechanism and an automatic switching mechanism, wherein the output shaft is provided with an external tooth, and the electric and the manual-drive mechanisms are used for driving the output shaft, and the automatic switching mechanism is used for realizing the switchover between the electric mechanism and the manual-drive mechanism. Since the automatic switching device is provided with the automatic switching mechanism, the switching mechanism can realize the switchover of the manual-drive driving way and the electric driving way. Under normal conditions, the electric driving way is utilized, thereby saving the labor force; under the conditions of power failure or no power supply, the electric driving way can be changed to the manual-drive driving way, so that the valve can continue to work. Therefore, the manual-drive and electric automatic switching device for the electric actuator is very convenient to use. At the same time, by utilizing the automatic switching mechanism, the manual-drive and the electric driving mechanisms can be integrated into a whole body, thereby, part of components can be saved, and the structure can be simplified, and the size can be relatively reduced.
Description
Technical field
The utility model relates to a kind of manual, electronic automatic switching control equipment that is used for electric actuator.
Background technique
Electric actuator is usually used in supporting various valve and constitutes electric valve or electric control valve, as: ball valve, butterfly valve, gate valve, modulating valve, single-seat valve etc.It comprises torque controlling device, is used to open or close the structures such as driving mechanism of unexpected winner.Traditional driving mechanism is common or be manual drives, or is motorized motions.The manual drives mode is relatively required great effort, less use.The motorized motions mode is more laborsaving, in case but the power failure then can't use, cause valve to open or to close.So, the situation that manual drives mode and motorized motions mode are used has simultaneously appearred in year recently.But manually driving with electronic two covers is separately independently, and the two can not automatically switch, thereby makes complex structure, and is bulky, uses also inconvenient.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides that a kind of manual drives mode and motorized motions mode can automatically switch, manual, the electronic automatic switching control equipment that is used for electric actuator simple in structure, easy to use.
For achieving the above object, the utility model provides a kind of manual, electronic automatic switching control equipment that is used for electric actuator, comprises the output shaft with external tooth, motor drive mechanism and the man-operated mechanism that is used to drive described output shaft.Wherein also comprise the mechanism for automatically switching that is used to realize motor drive mechanism and man-operated mechanism conversion.
Preferably, described motor drive mechanism comprise the worm screw that drives by drive transmission device, with the worm gear of this worm meshing.Described man-operated mechanism comprises handwheel and the empty elementary planetary gear reducing mechanism that is enclosed within on the described output shaft.Described elementary planetary gear reducing mechanism comprises elementary planetary carrier, be installed on the elementary planetary carrier 4 primary center gears and with the manual transmission gear of primary center gear engagement.Described mechanism for automatically switching comprises the central gear support, be installed in 4 central gears, skies on this central gear support is enclosed within electric gear and manual gear on the described output shaft.Described electric gear and described worm gear are in axial chimeric the connection, and with described central gear support on the engagement of wherein two central gears, described manual gear is enclosed within described manual transmission gear on the described output shaft in axial chimeric the connection with empty, and with described central gear support on the engagement of two other central gear, the external tooth of described output shaft is meshed with the internal tooth of described central gear support, and the upper end of described output shaft can axially relatively rotate with described handwheel by bearing and engage.
As shown from the above technical solution, advantage and the good effect manual, electronic automatic switching control equipment that is used for electric actuator of the present utility model is:
Because be provided with mechanism for automatically switching in the utility model, this switching mechanism can realize the conversion of manual drives mode and motorized motions mode.Generally use the motorized motions mode to work, very laborsaving; And in case have a power failure or do not have under the power supply situation, be convertible into the manual drives mode, valve still can be worked on.So manual, the electronic automatic switching control equipment that is used for electric actuator of the present utility model is very easy to use.Manual drives and electric driving mechanism can be incorporated into together because of being provided with mechanism for automatically switching simultaneously, the clipped component, so structure is simplified, volume is also corresponding to be reduced.
With reference to the accompanying drawing description of a preferred embodiment, above-mentioned and other purpose of the present utility model, feature and advantage will be more obvious by following.
Description of drawings
Fig. 1 is the structural representation of Torque Control of the present utility model mechanism.
Reference character wherein: 2. output shaft; 3. worm screw; 4. worm gear; 5. electric gear; 6. central gear; 7. central gear support; 8. manual gear; 9. moment of torsion output gear; 10. moment of torsion is exported worm screw; 11. manual transmission gear; 14. elementary planetary carrier; 15. primary center gear; 21. handwheel.
Embodiment
To describe specific embodiment of the utility model in detail below.Should be noted that the embodiments described herein only is used to illustrate, be not limited to the utility model.
In the utility model, the output terminal of output shaft 2 is the lower end, and the other end in contrast is the upper end.
As shown in Figure 1, manual, the electronic automatic switching control equipment that is used for electric actuator of the present utility model comprises output shaft 2, is used to drive the motor drive mechanism and the man-operated mechanism of output shaft 2, and the mechanism for automatically switching that is used to realize motor drive mechanism and man-operated mechanism conversion.
The sky that man-operated mechanism in the utility model comprises handwheel 21, driven by this handwheel 21 is enclosed within elementary planetary gear reducing mechanism, the manual transmission gear 11 on the described output shaft 2.Elementary planetary gear reducing mechanism can improve hand wheel torque.Elementary planetary gear speed reducing mechanism wherein comprises the elementary planetary carrier 14 that driven by handwheel 21, be installed in 4 primary center gears 15 on this elementary planetary carrier 14, with the manual transmission wheel 11 of these 4 primary center gears, 15 engagements.
In the utility model, also be provided with moment of torsion output gear 9 in man-operated mechanism, it has an arm, and wrom tooth is arranged on the arm, and this wrom tooth is equivalent to the part of worm gear, cooperates with moment of torsion output worm screw 10 moment of torsion is exported.
Motor drive mechanism in the utility model comprise the worm screw 3 that drives by drive transmission device, with the worm gear 4 of these worm screw 3 engagements.
Mechanism for automatically switching in the utility model comprises that central gear support 7, sky are enclosed within electric gear 5 and the manual gear 8 on the output shaft 2.Wherein central gear support 7 inner rings are provided with internal tooth, and outer rings, output shaft 2 centre are combined together by intermeshing inside and outside tooth between central gear support 7 and the output shaft 2 in being provided with outward like this.4 central gears 6 are installed on the central gear support 7.Axially cooperating between manual gear 8 and the empty manual transmission wheel 11 that is enclosed within on the output shaft 2 in tooth embedding mode, simultaneously with central gear support 7 on wherein two central gear 6 engagement fit.The upper end of output shaft 2 can axially relatively rotate with handwheel 21 by bearing and engage.Electric gear 5 is axially cooperating in tooth embedding mode with worm gear 4 in the motor drive mechanism, simultaneously with central gear support 7 on two other central gear 6 engagement fit.
In the utility model, electric gear 5 and manual gear 8 can slide on output shaft 2.When electric gear 5 rotates on output shaft 2, drive central gear support 7 and rotate, central gear support 7 drives manual gear 8 again and rotates, so electric gear 5 and manual gear 8 can be made two-way transmission of power.Worm gear 4 is installed in the below of electric gear 5, with tooth embedding mode and electric gear 5 combinations.The power source of final controlling element drives from the drive transmission device that is connected with worm screw 3, and worm screw 3 drives worm gear 4 and rotates when rotating, and worm gear 4 rotations drive electric gear 5 again and rotate.The planetary pinion transmission is a double dimension system, and when electric gear 5 rotated, central gear support 7 and manual gear 8 can rotate, and constraint one side can give the opposing party with transmission of power.During proper functioning, manual gear 8 is subjected to the restriction of the manual transmission wheel 11 of top, so the power of motor can pass to central gear support 7, central gear support 7 drives output shaft 2 and drives valve.When the motor stall, worm and gear can self-locking, therefore electric gear 5 has been subjected to constraint, manual gear 8 and upper structure engagement, be subjected to motivational drive from handwheel 21, therefore can give central gear support 7 with transmission of power, drive output shaft 2 and drive valve, finish the automatic switchover between the driving of motor driving and handwheel.
Though described the utility model with reference to several exemplary embodiments, should be appreciated that used term is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from model utility because the utility model can specifically be implemented in a variety of forms, so be to be understood that, the foregoing description is not limited to any aforesaid details, and should be in the spirit and scope that claim limited of enclosing explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (2)
1. manual, electronic automatic switching control equipment that is used for electric actuator, comprise the output shaft (2) with external tooth, motor drive mechanism and the man-operated mechanism that is used to drive described output shaft (2), it is characterized in that, also comprise the mechanism for automatically switching that is used to realize motor drive mechanism and man-operated mechanism conversion.
2. manual, the electronic automatic switching control equipment that is used for electric actuator as claimed in claim 1 is characterized in that, described motor drive mechanism comprise the worm screw (3) that drives by drive transmission device, with the worm gear (4) of this worm screw (3) engagement; Described man-operated mechanism comprises that handwheel (21) and sky are enclosed within the elementary planetary gear reducing mechanism on the described output shaft (2); Described elementary planetary gear reducing mechanism comprises elementary planetary carrier (14), the manual transmission gear (11) that is installed in 4 the primary center gears (15) on the elementary planetary carrier (14) and meshes with primary center gear (15), described mechanism for automatically switching comprises central gear support (7), be installed in 4 central gears (6) on this central gear support (7), sky is enclosed within electric gear (5) and the manual gear (8) on the described output shaft (2), described electric gear (5) and described worm gear (4) are in axial chimeric the connection, and with described central gear support (7) on wherein two central gears (6) engagements, described manual gear (8) and sky are enclosed within described manual transmission gear (11) on the described output shaft (2) in axial chimeric the connection, and with described central gear support (7) on two other central gear (6) engagement, the external tooth of described output shaft (2) is meshed with the internal tooth of described central gear support (7), and the upper end of described output shaft (2) can axially relatively rotate with described handwheel (21) by bearing and engage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920002192U CN201373161Y (en) | 2009-02-02 | 2009-02-02 | Manual-drive and electric automatic switching device for electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920002192U CN201373161Y (en) | 2009-02-02 | 2009-02-02 | Manual-drive and electric automatic switching device for electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373161Y true CN201373161Y (en) | 2009-12-30 |
Family
ID=41499242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920002192U Expired - Lifetime CN201373161Y (en) | 2009-02-02 | 2009-02-02 | Manual-drive and electric automatic switching device for electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373161Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115125A (en) * | 2013-02-25 | 2013-05-22 | 深圳万讯自控股份有限公司 | Friction-type driving-force switching mechanism |
| CN111425650A (en) * | 2020-03-03 | 2020-07-17 | 中国石化销售股份有限公司华南分公司 | Disc type motor-driven worm gear and worm transmission angle stroke type quick cut-off executing mechanism |
| CN111425645A (en) * | 2020-03-03 | 2020-07-17 | 中国石化销售股份有限公司华南分公司 | Direct-drive disc spring energy storage reset type straight-stroke quick turn-off actuating mechanism |
-
2009
- 2009-02-02 CN CN200920002192U patent/CN201373161Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115125A (en) * | 2013-02-25 | 2013-05-22 | 深圳万讯自控股份有限公司 | Friction-type driving-force switching mechanism |
| CN103115125B (en) * | 2013-02-25 | 2016-05-11 | 深圳万讯自控股份有限公司 | Friction-type powershift mechanism |
| CN111425650A (en) * | 2020-03-03 | 2020-07-17 | 中国石化销售股份有限公司华南分公司 | Disc type motor-driven worm gear and worm transmission angle stroke type quick cut-off executing mechanism |
| CN111425645A (en) * | 2020-03-03 | 2020-07-17 | 中国石化销售股份有限公司华南分公司 | Direct-drive disc spring energy storage reset type straight-stroke quick turn-off actuating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |