CN2200742Y - Valve electrical device for part rotary valve - Google Patents

Abstract

The utility model discloses a valve electrical device for a part rotary valve, which belongs to a valve control device. The utility model is characterized in that multiple stage reduction cylindrical gears are provided; a shaft, a casing and a final stage small gear, which support the multiple stage reduction cylindrical gears, are provided; a final stage big gear is provided to engage with the small gear; an output shaft is provided to support the final stage big gear; a pressure spring is arranged at the lower part of the final stage big gear; the casing is supported on a shaft gear; one end of the shaft gear is extended out of the casing; the other end of the shaft gear can be engaged with the final stage big gear. The utility model is mainly suitable for a small caliber part rotary valve, in particular to a valve electric device of a ball valve. The utility model has the advantages of small size, light weight, simple structure and good casing protection. The installation of the utility model is very convenient.

Description

Valve electrical device for part rotary valve

The utility model belongs to a kind of valve control device.

Before the utility model is realized, be used for small-bore part turning valve, compare much biggerly as the volume of electric device for valve such as ball valve, butterfly valve with the volume of valve, it is disproportionate to be assembled together, and weight is relatively large, gives to install and use and brings inconvenience.

The purpose of this utility model provides a kind of electric device for valve that is used for the part turning valve, thereby has overcome the problem that exists in the above-mentioned prior art.

Basic structure of the present utility model comprises: the axle of multi-stage speed-reducing cylindrical gears and support said gear, casing, final stage small gear and the final stage gearwheel that is meshed with this gear, the stage clip that can support the output shaft of described final stage gearwheel and be positioned at final stage gearwheel bottom.One is supported on the casing, and an end stretches out outside the casing, the other end can with the shaftgear of described final stage gearwheel engagement.

Accompanying drawing 1 is a facade sectional stretch-out view of the present utility model.

Accompanying drawing 2 is the vertical view cutaway drawing of accompanying drawing 1.

Below in conjunction with accompanying drawing the utility model is elaborated.

The power that 1. motor produces directly cross multi-stage speed-reducing cylindrical gears (11), final stage small gear 8., 2. 3. the final stage gearwheel be transferred to output shaft, stretch out outside the casing lower end of output shaft, is used for driving valve opening and closing.The axis that 5. axle of support multi-stage speed-reducing cylindrical gears reaches output shaft is parallel to each other.The final stage gearwheel is installed on the output shaft, is supported by output shaft, and with pin 6. described final stage gearwheel also can be connected on the described output shaft with key, thereby the final stage gear can be rotated with output shaft, can move up and down on output shaft again.Below described final stage gearwheel, a stage clip is arranged 7. around output shaft, this stage clip can guarantee that when motoring condition the final stage gearwheel can be meshed with the final stage small gear.9. the outside, middle part at described final stage gearwheel has rack circle, and this tooth bar can make output shaft be meshed with the increment of shaftgear, and described tooth bar can also be equipped with shift fork with circular groove and replace, to reach same effect.

10. described shaftgear can be supported in described casing and 4. go up, the one end leans out outside the casing, the gear teeth can mesh with the tooth bar on the described final stage gearwheel, so that when manually-operable the engagement by the gear teeth and tooth bar, the final stage gearwheel is moved down, up to the engagement of disengaging, to reach the purpose of hand-guided output shaft action with described final stage small gear.The axis of described shaftgear can be vertical mutually with the axis of output shaft.

The utility model mainly is applicable to the Electric actuator of the valve of small-bore part turning valve, especially ball valve, and volume is little, in light weight, simple in structure, and shell protection is good, and installs very convenient.

Claims (5)

1, a kind of electric device for valve that is used for the part turning valve, mainly comprise in the structure: the axle of multi-stage speed-reducing cylindrical gears (11) and support said gear 5., casing 4., the final stage small gear 8. reach with the final stage gearwheel of final stage pinion 3., 2. the output shaft that can support the final stage gearwheel is characterized in that.

＜1〉2. go up at described output shaft, 7. the bottom that is positioned at described final stage gearwheel has a stage clip;

＜2〉10. shaftgear is supported in casing and 4. goes up, and the one end stretches out outside the casing, and the gear teeth are meshed with tooth on the described final stage gearwheel;

2, device according to claim 1 is characterized in that 6. described final stage gearwheel can be sold or key is connected with output shaft, thereby the final stage gearwheel both can together be rotated with output shaft, again can be upper and lower mobile on output shaft.

3, device according to claim 1, the middle part outside that it is characterized in that described final stage gearwheel have rack circle 9. this tooth bar can be meshed with the described shaftgear gear teeth 10..

4, device according to claim 3 is characterized in that described tooth bar can be equipped with the shift fork replacement by circular groove.

5, device according to claim 1 is characterized in that described shaftgear axis 10. can be perpendicular with described output shaft axis 2..

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