CN2814067Y - Electric device comprehensive controller for valve - Google Patents

Abstract

The utility model discloses a comprehensive controller for an electric device of a valve, which comprises a stroke counter, a valve opening indicator and a potentiometer, wherein a stroke switch of the stroke counter is fixed on a casing plate of one extending end of an opening indicating shaft of the valve opening indicator and the installing direction of the stroke switch causes a shaft line of a button of the stroke switch to be vertically crossed with the shaft line of the opening indicating shaft. The method is adopted so that the aims of controlling strokes and indicating opening are realized, and two structures are combined into a whole. The utility model has the advantages of small size for the whole control mechanism, simple structure, low cost and convenient use.

Description

A kind of electric device for valve integrated controller

Technical field

The utility model relates to a kind of electric device for valve integrated controller.

Background technique

Electric device for valve is to utilize manual or electronic many revolutions or the rotating mode of operation of part of carrying out, and drives the opening and closing of valve.Operator promptly may carry out centralized control to valve at a distance, also need to carry out at the scene manually-operable.At industrial departments such as petrochemical industry, water power, metallurgy, nuclear energy, often use core components such as dish valve, ball valve, stopcock to make rotating valve of part and relevant device, at the very big part turning valve similar devices of heavy caliber, controlling torque, must set up the one-level mechanical reducer again, realize strengthening the purpose of torque.The range controlling mechanism of electric device for valve adopts counter, and the indication mechanism of the unlatching of valve or the position of closing (comprising the electrical signal of exporting its position) is an indicator of opening.These two mechanisms have played and have shown valve element position and carry out the effect of Stroke Control.On present engineering in the employed electric device for valve, they are two covers mechanisms independently separately, but its driving source has only one, all from the output shaft of electric device for valve.Part turning valve Electric actuator and similar devices, can there be different numerical value the angle of revolution of its spool on demand, for example 90 °, 45 ° or the like.Because counter and indicator of opening are provided with respectively, make that The whole control mechanism volume is big, complex structure, manufacture cost be higher.

The model utility content

Problem to be solved in the utility model provides a kind of electric device for valve integrated controller, its objective is the designs simplification and the compactness that realize valve control mechanism.

To achieve these goals, electric device for valve integrated controller provided by the utility model, comprise trip count device, valve opening indicator, the position limit switch of trip count device is fixed on the coverboard of the end that the aperture indication shaft extension of valve opening indicator goes out, and its installation direction is the intersect vertical axis that makes position limit switch button axis and aperture indication spool.

The trip count device is established two cams, is fitted on the aperture indication axle of valve opening indicator, and it press-fits the position and contacts with the position limit switch button for making the cam profile outer rim.

The aperture indication shaftgear and the potentiometer shaft gear engagement of valve opening indicator.

Adopt said method, can realize the purpose that Stroke Control and aperture show, and make two structures synthesize an integral body, little, simple in structure, the low cost of manufacture of The whole control mechanism volume, easy to use.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is 90 ° and 45 ° of electric device for valve integrated controller cross-sectional view.

Fig. 2 is 90 ° and 45 ° of electric device for valve integrated controller Facad structure schematic representation.

Fig. 3 connects schematic representation for potentiometer

Number in the figure is: 1, trip count device, 2, the valve opening indicator, 3, potentiometer, 4, position limit switch, 5, aperture indication axle, 6, cam, 7, coverboard, 8, position limit switch button, 9, aperture indication shaftgear, 10, the potentiometer shaft gear, 11, electric device for valve main shaft, 12, gear reduction system, 13, driving wheel, 14, duplicate gear.

Embodiment

Potentiometer as 90 ° of Fig. 1 and 45 ° of electric device for valve integrated controller cross-sectional view, Fig. 2 90 ° and 45 ° of electric device for valve integrated controller Facad structure schematic representation and Fig. 3 connects shown in the schematic representation, and the utility model comprises trip count device 1, valve opening indicator 2.With 90 ° and 45 ° of two integrated controller examples its embodiment is described below:

Specific embodiment one:

90 ° of electric device for valve integrated controllers are applicable to that the angle of revolution is 90 ° a valve.Valve opening indicator 2 is a gear reduction system between two coverboard 7, electric device for valve main shaft 11 actuation gear deceleration systems 12, its transmission system is: the Z=24 of driving wheel 13, the Z=24 of duplicate gear 14 and Z=48, the Z=48 of aperture indication shaftgear 9, velocity ratio is $i=\frac{24}{48}\×\frac{24}{48}=0.25,$ Aperture indication axle 5 output corners are 360 ° * 0.25=90 °, and are synchronous with the planet carrier of planetary reducer.

The aperture indication axle 5 that the position limit switch 4 of trip count device 1 is fixed on valve opening indicator 2 stretches out on the coverboard 7 of an end, and its installation direction is two position limit switch button 8 axis making position limit switch 4 and the intersect vertical axis of aperture indication spools 5.Trip count device 1 is established two cams 6, is fitted on the aperture indication axle 5 of valve opening indicator 2, and it press-fits the position and contacts with position limit switch button 8 for making the cam profile outer rim.The rotation of aperture indication axle 5 drives two cams 6 and rotates, and control position limit switch 4 sends signal, cuts off motor power and stall when valve opening and closing is put in place.

The aperture indication shaftgear 9 of valve opening indicator 2 and 10 engagements of potentiometer shaft gear.The Z=16 of potentiometer shaft gear 10, velocity ratio is $i=\frac{48}{16}=3,$ So aperture indication shaftgear 9 turns over 90 °, potentiometer shaft gear 10 turns over 90 ° * 3=270 °, potentiometer 3 is in 0 °～270 ° rotary course, different resistance values will be obtained, this resistance value can show the angular orientation of valve through the aperture table, and can after intergrated circuit is handled, convert the electrical signal of 4～20mA to, realize control automatically by computer controlled system.

Specific embodiment two:

45 ° of electric device for valve integrated controllers are applicable to that the angle of revolution is 45 ° a valve, and its structure and working principle are with embodiment one.But its transmission system is: the Z=40 of driving wheel 13, and the Z=24 of duplicate gear 14 and Z=80, the Z=96 of aperture indication shaftgear 9, gear ratio is $i=\frac{40}{80}\×\frac{24}{96}=0.125,$ Aperture indication axle 5 output corners are 360 ° * 0.125=45 °.The Z=16 of potentiometer shaft gear 10, velocity ratio is $i=\frac{96}{16}=6,$ So aperture indication shaftgear 9 turns over 45 °, potentiometer shaft gear 10 turns over 45 ° * 6=270 °.

Claims (3)

1, a kind of electric device for valve integrated controller, comprise trip count device (1), valve opening indicator (2), potentiometer (3), it is characterized in that: the aperture indication axle (5) that the position limit switch (4) of trip count device (1) is fixed on valve opening indicator (2) stretches out on the coverboard (7) of an end, and its installation direction is two position limit switch button (8) axis making position limit switch (4) intersect vertical axis with aperture indication spool (5).

2, according to the described electric device for valve integrated controller of claim 1, it is characterized in that: trip count device (1) is established two cams (6), be fitted on the aperture indication axle (5) of valve opening indicator (2), it press-fits the position and contacts with position limit switch button (8) for making the cam profile outer rim.

3, according to the described electric device for valve integrated controller of claim 2, it is characterized in that: the aperture indication shaftgear (9) of valve opening indicator (2) and potentiometer shaft gear (10) engagement.

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