Valve worm gear head is a common valve driving device, which uses worm gear to drive the valve to open and close. This paper will briefly analyze the working principle and application range of the worm gear head of the valve.

The worm gear mechanism in the worm gear head of the valve can realize the conversion of the input power of high speed and low torque to the output power of low speed and high torque, and has the function of self-locking. The input power usually comes from an electric motor or air motor, which drives the output shaft to rotate after the worm gear decelerates, and then drives the valve to open and close through the connecting rod mechanism. This transmission mode enables the valve to achieve precise position control.

Valve worm gear head is widely used in a variety of valves requiring rotation or multi-turn opening and closing, such as ball valves, butterfly valves, gate valves, etc. Compared with other transmission mechanisms, the valve worm gear head has the characteristics of compact structure, smooth transmission and self-locking stability, which can be manually operated or combined with the actuator to achieve remote control or automatic control. In addition, the combination of worm gear with different deceleration ratio can also realize the flexible adjustment of the valve switching speed.

To sum up: valve worm gear head as a commonly used valve drive device, through the worm gear mechanism to provide quasi-consultative, reliable low-speed high torque output, suitable for all kinds of need to rotate the valve, so that the valve switch and flow control to achieve automation, fine consultation, intelligent.

Working principle and application analysis of worm gear head of valve