Electric actuating mechanism for dynamic force equilibrium positioning

An electric actuator and dynamic force technology, applied in the direction of AC motor control, electrical components, control systems, etc., can solve problems such as disturbance and overshoot, inability to achieve flexible and precise positioning, and low positioning accuracy, so as to improve reliability and use The effect of longevity

Active Publication Date: 2012-02-22
CHONGQING CHUANYI AUTOMATION
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] The existing electric actuators do not use dynamic force balance technology, and their output force cannot achieve dynamic force balance. In precise operation, such as valve control, it cannot guarantee that the valve can reach the designated position reliably and smoothly.
Although there are some positioning technologies for actuators in the prior art, their positioning accuracy is not high, there will be disturbances and overshoots, flexible and accurate positioning cannot be achieved, and even the service life of the actuators will be affected

Method used

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  • Electric actuating mechanism for dynamic force equilibrium positioning
  • Electric actuating mechanism for dynamic force equilibrium positioning

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Embodiment Construction

[0015] Preferred embodiments of the present invention will be described in detail below. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0016] see figure 1 , an electric actuator for dynamic force balance positioning, including a power supply, a motor, an output shaft and a reducer, the motor is a three-phase AC motor, the motor is connected to the output shaft through a reducer, and a handwheel is provided on the reducer For sensors and position sensors, a torque sensor is arranged on the output shaft. In order to ensure the sensing accuracy, the torque sensor uses a piezoelectric ceramic sensor. It also includes a DSP processing system and a variable frequency drive module. The signal input end of the DSP processing system is electrically connected to the signal output ends of the handwheel sensor, position sensor, and torque sensor to obtain the ou...

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PUM

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Abstract

The invention relates to the technical field of actuating mechanisms, and provides an electric actuating mechanism for dynamic force equilibrium positioning. The electric actuating mechanism can realize dynamic force equilibrium output. The electric actuating mechanism for dynamic force equilibrium positioning comprises a power supply, a motor, an output shaft and a speed reducer, wherein a handwheel sensor and a position sensor are arranged on the speed reducer; and a torque sensor is arranged on the output shaft. The electric actuating mechanism also comprises a digital signal processor (DSP) processing system and a variable frequency drive module, wherein a signal input end of the DSP processing system is electrically connected with signal output ends of the handwheel sensor, the position sensor and the torque sensor to acquire the output torque and the speed of the electric actuating mechanism and feed the output torque and the speed back to the variable frequency drive module so as to adjust the running of the motor in real time.

Description

technical field [0001] The invention relates to the technical field of actuators, in particular to an electric actuator with dynamic force balance positioning. Background technique [0002] The existing electric actuators do not use dynamic force balance technology, and their output force cannot achieve dynamic force balance. In precise operation, such as valve control, it cannot guarantee that the valve can reach the designated position reliably and smoothly. Although there are some positioning technologies for actuators in the prior art, their positioning accuracy is not high, there will be disturbances and overshoots, flexible and accurate positioning cannot be achieved, and even the service life of the actuators will be affected. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide an electric actuator with dynamic force balance positioning, which can realize the dynamic force balance of the output of the actuator. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P23/00H02P25/02
Inventor 游军
Owner CHONGQING CHUANYI AUTOMATION
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