CN2791412Y - Multi-stage speed-changing drive electric valve - Google Patents
Multi-stage speed-changing drive electric valve Download PDFInfo
- Publication number
- CN2791412Y CN2791412Y CN 200520107748 CN200520107748U CN2791412Y CN 2791412 Y CN2791412 Y CN 2791412Y CN 200520107748 CN200520107748 CN 200520107748 CN 200520107748 U CN200520107748 U CN 200520107748U CN 2791412 Y CN2791412 Y CN 2791412Y
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- CN
- China
- Prior art keywords
- valve
- electric
- motor
- transmission
- driven
- 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
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- Electrically Driven Valve-Operating Means (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a multi-stage speed-changing drive electric valve, which is composed of a valve and an electric device, wherein the electric device is arranged in a valve cover and comprises an electrical apparatus element, a motor, and an electric drive device, wherein the electrical apparatus element is connected with the motor; the motor is connected with the electric drive device; the electric drive device is connected with the valve; the electric drive device is a multi-stage speed-changing gear drive device. The utility model has the advantages of small driving moment between gears, long lifetime of drive gears, small size of the electric device, reasonable structure, good dustproof property, beautiful appearance, etc., and the cost can be reduced by 50%.
Description
Technical field
The utility model relates to a kind of all kinds of electric valves that are applicable to dust-laden domain-specific such as cement homogenizing storehouse, specifically, relates to a kind of multi-change speed transmission Electric actuator.
Background technique
The cement homogenizing storehouse be a dust concentration than higher occasion, on pipe-line system, usually use electric valve as shown in Figure 1.It is made up of valve I and Electric actuator II two large divisions.After electric device for valve II is added into the unlatching electrical signal, electrical apparatus element 3 inner miniature relays actions, main motor 4 rotates immediately.Main drive pinion 5-1 on its transmission shaft rotates synchronously at this moment, drives passive gearwheel 5-2 and valve rod 1 rotation.Through 2 seconds, valve position is in fully open position fast, and valve opening direction board 8 is in the standard-sized sheet indicating positions at this moment.Under the effect of limit switch, motor 4 shuts down, and keeps electric lock fixed.Meanwhile, the electrical signal indicator cock is touched action, and output switching signal makes that tutorial light has corresponding indication in the control room.After opening the electrical signal disappearance, motor 4 reverses immediately, closes automatically through two seconds kinds, and under the effect of reverse limit switch, motor 4 shuts down.The full cut-off of valve position full cut-off, and maintenance at this moment electric lock is fixed.
Existing electric valve exists following shortcoming:
1, driving mechanism only is the transmission of one-level speed change.Drive gearwheel by a small gear and rotate, driving torque is excessive, and small gear damages easily, and the monnolithic case size is big, and is not attractive in appearance;
2, power supply terminal is exposed at outside the casing, has not only met national electrical standard but also dangerous;
3, the valve opening direction board is exposed at casing upper surface, dustproof weak effect;
4, straight cylindrical casing relies on screw on carriage, easy deformation, and anti-dust performance is not good.
The model utility content
The utility model technical issues that need to address just are to overcome the defective of existing cement homogenizing storehouse electric valve, a kind of multi-change speed transmission electric valve is provided, it is little that it has between gear driving torque, the driving gear life-span is long, the Electric actuator volume is little, rational in infrastructure, anti-dust performance is good, and beautiful shape and cost reduce advantage such as about 50%.
For addressing the above problem, the utility model adopts following technological scheme:
The utility model multi-change speed transmission electric valve, it is made up of valve and Electric actuator two large divisions, Electric actuator is installed in the valve bonnet, comprise electrical apparatus element, motor, electric transmission machanism, electrical apparatus element are connected with motor, motor is connected with electric transmission machanism, and electric transmission machanism is connected with valve, and described electric transmission machanism is a step-by-step variable speed transmission.
Step-by-step variable speed transmission described in the utility model is the multi-stage gear transmission device, its structure is: motor, the coaxial driving gear that is installed on the electric machine main shaft, electric machine main shaft drive driving gear and rotate synchronously, drive the valve rod rotation of valve by multistage driven gear.
Preferably, step-by-step variable speed transmission described in the utility model is the secondary gear transmission, it comprises motor, the coaxial driver pinion that is installed on the electric machine main shaft, the driven gearwheel of one-level with the driver pinion engagement, driven gearwheel of secondary and the coaxial mounted valve rod of the driven gearwheel of secondary with driven small gear of the coaxial mounted one-level of the driven gearwheel of one-level and the driven pinion of one-level.
The utility model motor is provided with water joint, and the tenminal block of Electric actuator is installed in the valve bonnet.
Electric valve described in the utility model is provided with the valve opening direction board, and described valve opening direction board is installed in the valve bonnet, and the valve bonnet upper surface of valve opening direction board top is inlayed the toughened glass visor.
Valve bonnet described in the utility model and fixed plate joint are the fold type case, and valve bonnet is vertically fixed on the fixed plate by set screw.
With the secondary gear transmission is example, and the utility model working principle is: after electric device for valve is added into the unlatching electrical signal, and the miniature relay action of electrical apparatus element inside, main motor rotates immediately.Main drive pinion on its transmission shaft rotates synchronously at this moment, and drive driven gearwheel of one-level and the driven small gear of one-level that is installed on the driven gearwheel the same axis of one-level rotate, and drives the driven gearwheel rotation of secondary again by the driven small gear of one-level.Because the driven gearwheel main shaft of secondary is directly to insert spool, so valve rod is along with the driven gearwheel of secondary rotates synchronously.The multi-stage gear transmission also is in like manner.Through two seconds, valve position is in fully open position fast, and this moment, the valve opening direction board was in the standard-sized sheet indicating positions.Under the effect of limit switch, motor shuts down, and keeps electric lock fixed.Meanwhile, the electrical signal indicator cock is touched action, and output switching signal makes that tutorial light has corresponding indication in the control room.After opening the electrical signal disappearance, motor shuts down.The full cut-off of valve position full cut-off, and maintenance at this moment electric lock is fixed.
The utility model is changed into secondary or the multi-change speed transmission by the transmission of one-level speed change except the transmission of Electric actuator, also according to standard and consider safety and anti-dust performance, tenminal block is changed into built-in, and water joint is set on motor; For dustproof, the valve opening direction board is placed case inside, and the case upper surface above direction board is inlayed the toughened glass visor; Equally, for dustproof, change the straight cylinder type case into the fold type case, by set screw vertical fixing case.For this reason, it is little to the utlity model has between gear driving torque, and the driving gear life-span is long, and the Electric actuator volume is little, and is rational in infrastructure, and anti-dust performance is good, and beautiful shape and cost reduce advantage such as about 50%.
Description of drawings
Fig. 1 is an electric valve structural representation in the prior art.
Fig. 2 is the utility model structural representation.
Embodiment
As shown in Figure 2, the utility model multi-change speed transmission electric valve is made up of valve I and Electric actuator II two large divisions.Valve comprises valve rod 1, and Electric actuator is installed in the valve bonnet 2, comprises electrical apparatus element 3, motor 4, electric transmission machanism, electrical apparatus element are connected with motor, motor is connected with electric transmission machanism, and electric transmission machanism is connected with valve, and described electric transmission machanism is a step-by-step variable speed transmission.
With the secondary gear transmission is example, step-by-step variable speed transmission described in the utility model is the secondary gear transmission, it comprises motor, the coaxial driver pinion 5-1 that is installed on the electric machine main shaft, the driven gearwheel 5-2 of one-level with the driver pinion engagement, driven gearwheel 5-4 of secondary and the coaxial mounted valve rod of the driven gearwheel of secondary with driven small gear 5-3 of the coaxial mounted one-level of the driven gearwheel of one-level and the driven pinion of one-level.
The utility model motor is provided with water joint 6, and the tenminal block 7 of Electric actuator is installed in the valve bonnet.
Electric valve described in the utility model is provided with valve opening direction board 8, and described valve opening direction board is installed in the valve bonnet, and the valve bonnet upper surface of valve opening direction board top is inlayed toughened glass visor 9.
Valve bonnet described in the utility model and fixed plate joint are the fold type case, and valve bonnet is vertically fixed on the fixed plate by set screw 10.
Claims (6)
1, a kind of multi-change speed transmission electric valve, it is made up of valve and Electric actuator two large divisions, Electric actuator is installed in the valve bonnet, comprise electrical apparatus element, motor, electric transmission machanism, electrical apparatus element are connected with motor, motor is connected with electric transmission machanism, and electric transmission machanism is connected with valve, it is characterized in that: described electric transmission machanism is a step-by-step variable speed transmission.
2, electric valve as claimed in claim 1, it is characterized in that: described step-by-step variable speed transmission is the multi-stage gear transmission device, its structure is: motor, the coaxial driving gear that is installed on the electric machine main shaft, electric machine main shaft drives driving gear and rotates synchronously, drives the valve rod rotation of valve by multistage driven gear.
3, electric valve as claimed in claim 2, it is characterized in that: described step-by-step variable speed transmission is the secondary gear transmission, it comprises motor, the coaxial driver pinion that is installed on the electric machine main shaft, the driven gearwheel of one-level with the driver pinion engagement, driven gearwheel of secondary and the coaxial mounted valve rod of the driven gearwheel of secondary with driven small gear of the coaxial mounted one-level of the driven gearwheel of one-level and the driven pinion of one-level.
4, as claim 2 or 3 described electric valves, it is characterized in that: motor is provided with water joint, and the tenminal block of Electric actuator is installed in the valve bonnet.
5, electric valve as claimed in claim 4 is characterized in that: described electric valve is provided with the valve opening direction board, and described valve opening direction board is installed in the valve bonnet, and the valve bonnet upper surface of valve opening direction board top is inlayed the toughened glass visor.
6, electric valve as claimed in claim 5 is characterized in that: described valve bonnet and fixed plate joint are the fold type case, and valve bonnet is vertically fixed on the fixed plate by set screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520107748 CN2791412Y (en) | 2005-05-31 | 2005-05-31 | Multi-stage speed-changing drive electric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520107748 CN2791412Y (en) | 2005-05-31 | 2005-05-31 | Multi-stage speed-changing drive electric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791412Y true CN2791412Y (en) | 2006-06-28 |
Family
ID=36807482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520107748 Expired - Fee Related CN2791412Y (en) | 2005-05-31 | 2005-05-31 | Multi-stage speed-changing drive electric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791412Y (en) |
-
2005
- 2005-05-31 CN CN 200520107748 patent/CN2791412Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060628 Termination date: 20130531 |