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Valve electric actuator

A valve electric and actuator technology, applied in valve details, valve devices, engine components, etc., can solve problems such as poor stability and accuracy, multiple fault sources, and changes in resistance value, so as to ensure service life and accuracy stability , good stability and reliability, no friction loss effect

Active Publication Date: 2013-02-13
ZHEJIANG MENRED COMFORT SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This traditional valve electric actuator has the following disadvantages: (1) Due to the need for a mechanical transmission mechanism, the mechanical transmission part is prone to wear and tear, resulting in poor stability and accuracy; (3) Due to the use of mechanical transmission mechanism, the structure is more complicated, there are many fault sources, and the calibration is more difficult

Method used

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  • Valve electric actuator
  • Valve electric actuator
  • Valve electric actuator

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Embodiment 1

[0029] Figure 1 to Figure 5 A specific embodiment of the invention is shown in which, figure 1 It is a schematic diagram of a three-dimensional structure of the present invention; figure 2 for figure 1 A schematic diagram of a three-dimensional structure of the valve electric actuator shown after removing some components; image 3 for figure 2 An exploded schematic diagram of the valve electric actuator shown; Figure 4 for figure 1 A schematic diagram of a three-dimensional structure of the position signal generating device in the valve electric actuator shown; Figure 5 for figure 1 A schematic diagram of the three-dimensional structure of the sensing element in the valve electric actuator shown.

[0030] This embodiment is a valve electric actuator, see figure 1 To Fig. 6, it includes a mounting frame 1, a motor 2, a speed change mechanism 3, an execution transmission mechanism 4, a position signal generating mechanism 5 and an indicating mechanism 6; the speed c...

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Abstract

The invention discloses a valve electric actuator comprising a mounting frame, an electric motor, a variable speed mechanism, an execution transmission mechanism and a position signal-generating mechanism. The variable speed mechanism comprises a plurality of gears and corresponding gear rotating shafts; the execution transmission mechanism comprises an execution shaft; the electric motor drives the execution shaft to make reciprocating motion by the variable speed mechanism; the position signal-generating mechanism comprises a turntable and a sensor element; the turntable is arranged on a gear rotating shaft and rotates along with the gear rotating shaft; and the sensor element is used for collecting the rotating information of the turntable. The invention has simpler structure and favorable stability and reliability without friction loss.

Description

technical field [0001] The invention belongs to the technical field of valves, and in particular relates to an electric valve actuator for intelligent control. Background technique [0002] Valve electric actuator is a valve driving device commonly used in industrial intelligent control systems. [0003] During its operation, the valve electric actuator needs to output the valve position signal to the upper intelligent control system, so the electric actuator includes a valve position signal generating device. In traditional valve electric actuators, potentiometers are generally used as valve position signal generating devices. When the valve position changes, the resistance of the potentiometer will change through the mechanical transmission mechanism. Through adjustment and calibration, the resistance value of the potentiometer can be adjusted. Determine where the valve is located. [0004] This traditional valve electric actuator has the following disadvantages: (1) Due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/04
Inventor 赵乐生陈立楠陈童静
Owner ZHEJIANG MENRED COMFORT SYST