| 摘要 |
<p>A servo motor operated valve and a control method thereof are disclosed. The servo motor operated valve includes a valve body (1) and a valve rod (2) mounted in the valve body (1), the output end of a servo motor (10) is connected with the input end (24) of a reducer (24, 25) through a coupling (3), and the output end (25) of the reducer (24, 25) is connected with the valve rod (2), the valve rod (2) is connected with a valve opening (5) to control the opening of the valve opening (5). A position detection means (7) is provided on the shaft of the servo motor (10) and inputs a control signal to a servo controller (9) to control the servo motor (10) to drive the reducer (24, 25) and control the opening of the valve opening (5) through the valve rod (2). The control method includes the steps of setting the opening of the valve, calculating the angle of the shaft of the motor, detecting the angle of the shaft of the motor, et al. The invention has high control precision and high reliability, and can control torque and rotation speed.</p> |
