How to adjust the screw lift when assembling
Screw lifts (screw lifts) have a wide range of applications.It has simple structure, strong reliability, long service life and extremely low repair rate, and is now recognized by more and more customers.The screw lift can be self-locking, even if there is a load, it can complete self-locking without taking other braking measures.It can be driven manually or by motor, these characteristics determine its applicability in various working conditions.
The inside of the screw elevator is a worm gear structure, which is a very common mechanism to achieve linear motion.When the equipment is in operation, the worm drives the worm wheel to rotate, and the thread inside the worm wheel drives the lead screw to move in a straight line.The materials and accessories of the screw lifts produced by our company use the best materials to ensure the working life of the lifts and the working efficiency under harsh conditions.Moreover, the sealing of the housing enables the worm gear structure to operate for a longer time in a good and clean environment.
Due to the wear between the worm gear and the worm, the gap between the worm gear and the worm is larger, which affects the normal operation.Therefore, it is necessary to shift the screw lift to compensate for the error compensation that is often used for single precision.In order to be assembled with the lowest point of the circular runout of the thrust bearing end face, and the compensation of the axial movement: First, measure the perpendicularity error and the direction position of the bearing positioning end face on the main shaft and the center line of the main shaft, and then measure the end face of the thrust bearing. The circular runout error and its highest point position finally displace the highest point of the bearing locating end face.
The elevator is a multi-tooth meshing transmission, and the transmission of the screw elevator is equivalent to a screw transmission.Therefore, the transmission is stable, the noise is small, and the mechanism is self-locking.When the lead angle of the worm is smaller than the equivalent friction angle between the meshing gear teeth, reverse self-locking can be achieved, that is, only the worm can drive the worm, but the worm cannot be driven by the worm.