What are the common problems of screw elevators?

Screw jacks, also known as screw jacks, are widely used in machinery.Construction, chemical, medical and other health industries.It can accurately control and adjust the height of lifting or propulsion according to a certain program, which can be directly driven by a motor or other power, or manually.The internal structure is worm gear + screw nut, and the lifting function is realized by electric drive.The following introduces the problems and solutions of the clearance screw elevator in use, to help users and friends quickly troubleshoot.

The worm gear wears quickly, and the worm gear is generally made of tin bronze.Screw jacks wear out slowly during normal operation, and some screw jacks can last more than 10 years.If the wear rate is too fast, it is necessary to consider whether the original selection is correct, whether it is overloaded, the material of the worm gear, the quality of the assembly and the use environment.When the worm bearing is damaged, even if the gearbox is well sealed, it is often found that the gear oil in the screw jack is emulsified, and the bearing is rusted, corroded and damaged.This is because the condensed water generated after the gear oil temperature rises and cools down and mixes with the oil after the screw elevator has been running for a period of time.Of course, it is also closely related to the bearing quality and assembly process.

You can buy or make some special tools. When disassembling and installing the parts of the screw jack, try to avoid knocking with other tools such as hammers. When replacing gears, worm gears and worms, try to choose original accessories and replace them in pairs. When assembling the output shaft, pay attention to Tolerance fit, use anti-sticking agent or red dan oil to protect the hollow shaft to prevent wear and rust or scale on the mating area, which is difficult to disassemble during maintenance.