Worm gear screw jacks are characterized by mechanical precision, compact design, durability, low maintenance time, and long service life. Different applications require different operating frequencies for screw jacks, which needs to be considered in advance during selection to ensure the appropriate transmission mechanism is chosen.
Trapezoidal worm gear screw jacks should not be used too frequently. While trapezoidal worm gear screw jacks are self-locking, their operating frequency generally follows a 2:8 work cycle: 10 minutes of work followed by an 8-minute rest period after every 2 minutes of work. This is determined by the structural characteristics of the trapezoidal worm gear screw jack. The trapezoidal worm gear screw achieves linear motion through sliding friction between the worm wheel and the screw. Excessive friction will affect its service life. Furthermore, worm gear transmission efficiency is relatively low; therefore, trapezoidal worm gear screw jacks must adhere to a fixed working cycle and should not be used frequently.
For demanding working environments, a screw jack with a ball screw and gear drive structure can be considered. Ball screws have low friction due to the rolling of the balls, resulting in high transmission efficiency. The ball screw and gear drive structure effectively improves work efficiency and is well-suited for applications with high operating frequencies.
