An electric actuator is a device that converts electrical energy into mechanical energy and is widely used in industrial automation control systems. Its structure primarily consists of the following components:
Motor: Serves as the power source, typically an AC or DC motor, providing rotational force.
Reduction Gear: Using devices such as gears or worm gears, it converts the motor's high-speed rotation into a low-speed, high-torque output to meet the actuator's load requirements.
Position Feedback: Such as a potentiometer or encoder, monitors the actuator's position in real time and provides feedback to the control system to ensure precise control.
Control Module: This includes a circuit board and microprocessor, receiving control signals and driving the motor, while also processing feedback signals for closed-loop control.
Casing: Typically made of metal or engineering plastic, it protects internal components from environmental influences (such as dust and moisture).
Manual Operator: In the event of a power outage or emergency, a manual operating mechanism (such as a handwheel) allows for direct control of the actuator.
Connectors: Such as an output shaft or flange, connect to valves or other equipment.
