CN201575223U - Electric device for nuclear-grade low-torque multi-turn valve - Google Patents
Electric device for nuclear-grade low-torque multi-turn valve Download PDFInfo
- Publication number
- CN201575223U CN201575223U CN2009202829841U CN200920282984U CN201575223U CN 201575223 U CN201575223 U CN 201575223U CN 2009202829841 U CN2009202829841 U CN 2009202829841U CN 200920282984 U CN200920282984 U CN 200920282984U CN 201575223 U CN201575223 U CN 201575223U
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- gear
- housing
- electric actuator
- output shaft
- torque
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Abstract
The utility model relates to an electric device for a nuclear-grade low-torque multi-turn valve. The electric device comprises a housing, wherein a cover is arranged on the housing; an electric motor is fixed on the housing; an output shaft, a worm wheel and a worm are arranged in the housing; the output shaft is movably connected with an eccentric swivel arm and fixedly connected with an internal output gear; the lower end of the eccentric swivel arm is movably connected with a compound planet gear; one end of the compound planet gear is connected with the internal output gear; the other end of the compound planet gear is connected with the internal gear of the worm wheel; a spur gear A is fixed on the output shaft of the electric motor; a spur gear B is fixedly connected with the upper end of the eccentric swivel arm; and the spur gear A is connected with the spur gear B. The electric device has the advantages of great improvement in control precision of stroke and torque, free switch between manual operation and electric operation, good sealing performance of the housing, dry maintenance of the space in the cover and obvious decline in failure frequency and maintenance frequency.
Description
Technical field
The utility model relates to the electric device for valve in the nuclear power station, relates in particular to little many turning valves of the torque Electric actuator of a kind of nuclear level.
Background technique
The nuclear island of certain nuclear power station and conventional island are equipped with the bigger small-bore stop valve of quantity.Since debugging of unit cold conditions and formal generator operation, mainly there is the defective of following several aspects in the Russia that the small-bore stop valve of this class is joined for electric device for valve:
1, the control accuracy of stroke, torque is not enough;
2, manually with automatically switch not handyly, it is malfunctioning switching often to occur;
3, the body seal performance is bad, and inner inlet has corrosion phenomena to take place;
4, failure frequency and frequency of maintenance height.
In order further to improve the quality of Electric actuator, reduce fault and frequency of maintenance, promote moving device production domesticization of Russia's power supply and autonomy-oriented process, specialized designs has been developed many turning valves of the little torque of 1E level K2 nucleoid level Electric actuator, solves the supporting needs of the small-bore stop valve of this nucleoid level.
The model utility content
The technical problems to be solved in the utility model is: many turning valves of the little torque of the nuclear level Electric actuator that provide a kind of stroke and torque control accuracy height, switch flexibly, the body seal performance is good.
In order to overcome the defective that exists in the background technique, the technological scheme that its technical problem that solves the utility model adopts is: little many turning valves of the torque Electric actuator of a kind of nuclear level, comprise housing, housing is provided with cover cap, be fixed with motor on the housing, be provided with output shaft and worm and gear in this housing, this output shaft is connected with eccentric pivoted arm and is fixedly connected with output inner gear, described eccentric pivoted arm lower end is connected with compound planet gear, this compound planet gear one end is connected with output inner gear, its the other end is connected with the worm gear internal gear, described motor output shaft is fixed with spur wheel A, described eccentric pivoted arm upper end is fixedly connected with spur wheel B, and this spur wheel A is connected with spur wheel B gear.
According to another embodiment of the present utility model, little many turning valves of the torque Electric actuator of nuclear level comprises that further described motor is provided with break.
According to another embodiment of the present utility model, little many turning valves of the torque Electric actuator of nuclear level comprises that further described housing is provided with range controlling mechanism, be provided with gear train, cam and sensitive switch in the trip control mechanism, described output shaft upper end is provided with the stroke gear, the trip gear is connected with gear train, the output terminal and the cam of gear train are fixed, and the camming surface of cam and the contact of sensitive switch are interdependent.
According to another embodiment of the present utility model, little many turning valves of the torque Electric actuator of nuclear level comprises that further described cover cap is connected by non-disengaging screw with housing.
According to another embodiment of the present utility model, little many turning valves of the torque Electric actuator of nuclear level further comprises between described cover cap or output axle head and the housing and is provided with the O RunddichtringO.
According to another embodiment of the present utility model, little many turning valves of the torque Electric actuator of nuclear level comprises that further described worm screw one end is provided with operating grip, and this operating grip is folded with.
The utility model has solved the defective that exists in the background technique, the utility model can make the control accuracy of stroke, torque improve greatly, and will be manually with electronic switching freely, the body seal performance is good, the drying that keeps space in the case, in addition, make failure frequency of this product and frequency of maintenance obviously reduce.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment of the utility model (removing cover cap);
Fig. 2 be among Fig. 1 A-A to cross-sectional schematic;
Fig. 3 be among Fig. 1 B-B to cross-sectional schematic;
Fig. 4 is the left view of Fig. 1;
Embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
Shown in Fig. 1-2, little many turning valves of the torque Electric actuator of a kind of nuclear level, comprise housing 5, housing 5 is provided with cover cap 8, be fixed with motor 12 on the housing 5, be provided with output shaft 2 and worm gear 3 worm screws 17 in this housing 5, this output shaft 2 is connected with eccentric pivoted arm 6 and is fixedly connected with output inner gear 1, described eccentric pivoted arm 6 lower ends are connected with compound planet gear 4, these compound planet gear 4 one ends are connected with output inner gear 1, and its other end is connected with worm gear 3 internal gears, and described motor 12 output shafts are fixed with spur wheel A13, described eccentric pivoted arm 6 upper ends are fixedly connected with spur wheel B7, and this spur wheel A13 is connected with spur wheel B7 gear.
When motor 12 lost electric power, for preventing motor 12 reverse turn under the load effect, the preferred motor of the utility model was provided with break 11.In addition, housing 5 is provided with range controlling mechanism, be provided with gear train, cam 15 and sensitive switch 16 in the trip control mechanism, described output shaft 2 upper ends are provided with stroke gear 9, the trip gear 9 is connected with gear train, the output terminal of gear train and cam 15 are fixing, and the contact of the camming surface of cam 15 and sensitive switch 16 is interdependent.Torque controling mechanism has adopted adjustable structure, torque value can on-the-spotly be adjusted in maximum controlling torque and minimum controlling torque scope, the dynamometer element of torque has adopted linear better cylindrical screw stage clip, has improved the repeatability of Electric actuator output torque greatly.
As shown in Figure 4, described cover cap 8 is connected by non-disengaging screw 19 with housing 5.During dismounting, after screw 19 screws out housing 5, can not come off, make things convenient for user's installation, debugging and maintenance from cover cap 8.Worm screw 17 1 ends are provided with operating grip 18, and this operating grip 18 is folded with, and when needing manually-operable, handle 18 are launched, and end of operation can turn back handle 18.
In addition, be provided with the O RunddichtringO between cover cap 8 or output shaft 2 ends and the housing 5, thereby make the sealability between cover cap 8 or output shaft 2 ends and the housing 5 significantly improve.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (6)
1. examine little many turning valves of the torque Electric actuator of level for one kind, comprise housing, housing is provided with cover cap, be fixed with motor on the housing, it is characterized in that: be provided with output shaft and worm and gear in this housing, this output shaft is connected with eccentric pivoted arm and is fixedly connected with output inner gear, described eccentric pivoted arm lower end is connected with compound planet gear, this compound planet gear one end is connected with output inner gear, its the other end is connected with the worm gear internal gear, described motor output shaft is fixed with spur wheel A, and described eccentric pivoted arm upper end is fixedly connected with spur wheel B, and this spur wheel A is connected with spur wheel B gear.
2. little many turning valves of the torque Electric actuator of nuclear level as claimed in claim 1, it is characterized in that: described motor is provided with break.
3. little many turning valves of the torque Electric actuator of nuclear level as claimed in claim 1, it is characterized in that: described housing is provided with range controlling mechanism, be provided with gear train, cam and sensitive switch in the trip control mechanism, described output shaft upper end is provided with the stroke gear, the trip gear is connected with gear train, the output terminal and the cam of gear train are fixed, and the camming surface of cam and the contact of sensitive switch are interdependent.
4. little many turning valves of the torque Electric actuator of nuclear level as claimed in claim 1, it is characterized in that: described cover cap is connected by non-disengaging screw with housing.
5. little many turning valves of the torque Electric actuator of nuclear level as claimed in claim 1 is characterized in that: be provided with the O RunddichtringO between described cover cap or output axle head and the housing.
6. little many turning valves of the torque Electric actuator of nuclear level as claimed in claim 1, it is characterized in that: described worm screw one end is provided with operating grip, and this operating grip is folded with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202829841U CN201575223U (en) | 2009-12-23 | 2009-12-23 | Electric device for nuclear-grade low-torque multi-turn valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202829841U CN201575223U (en) | 2009-12-23 | 2009-12-23 | Electric device for nuclear-grade low-torque multi-turn valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575223U true CN201575223U (en) | 2010-09-08 |
Family
ID=42695100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202829841U Expired - Fee Related CN201575223U (en) | 2009-12-23 | 2009-12-23 | Electric device for nuclear-grade low-torque multi-turn valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913667A (en) * | 2012-09-20 | 2013-02-06 | 常州电站辅机总厂有限公司 | Nuclear-grade direct-current valve electric device for pressurized water reactor nuclear plant |
-
2009
- 2009-12-23 CN CN2009202829841U patent/CN201575223U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913667A (en) * | 2012-09-20 | 2013-02-06 | 常州电站辅机总厂有限公司 | Nuclear-grade direct-current valve electric device for pressurized water reactor nuclear plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANGZHOU ELECTRIC POWER EQUIPMENT MANUFACTURE FACT Free format text: FORMER NAME: YANGZHOU ELECTRIC POWER EQUIPMENT REPAIR + MANUFACTURE FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 225003 Wenchang Middle Road, Jiangsu, China, No. 77, No. Patentee after: Company limited of Yangzhou Electric Power Equipment Repair & Manufacture Factory Address before: 225003 No. 77 middle Wenchang Road, Guangling District, Jiangsu, Yangzhou Patentee before: Yangzhou Electric Power Equipment Repair & Manufacture Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20161223 |