Analyze how the screw elevator performs error compensation

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.High-quality elevator materials and accessories can ensure the working life of the elevator 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.The elevator is a multi-tooth meshing transmission, and the transmission 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.

Due to the wear between the worm gear and the worm of the screw elevator, the gap between the worm gear and the worm is even larger, which affects the normal operation.Therefore, shift compensation is required, which is often used for error compensation for single-term precision.In order to be assembled with the lower limit point of the circular runout of the end face of the thrust bearing, and to compensate for the axial movement, 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 should be measured first, and then the end face of the thrust bearing should be measured. The circular runout error and its high point position then displace the high point of the bearing locating face.