The slewing drive is a full-cycle rotary reduction transmission mechanism integrated with a driving power source. The slewing bearing is used as a transmission follower and a mechanism attachment member, and an active member and a driving source are attached to one of the inner and outer rings of the slewing ring. And the casing, and the other ring is regarded as both the transmission follower and the connecting base of the driven working part, so that the slewing bearing itself is a feature of the full-circle rotary connecting member, and the driving power source and the main transmission are efficiently configured. The part makes it a general-purpose reduction transmission mechanism that integrates the functions of rotation, deceleration and drive, while having a simple structure and convenient manufacture and maintenance.
Types of Worm Gear Slewing Drive
According to the form of the variable speed transmission of the slewing drive, it can be divided into a tooth type slewing drive and a worm gear type slewing drive, inheriting the respective characteristics of the gear drive and the worm gear drive, and the two slewing drives can be adapted to medium and high speed and low speed applications respectively. In terms of carrying capacity, the worm-and-worm type performs better than the gear type, and its load carrying capacity, deformation resistance and transmission rigidity are further improved when using an envelope worm drive, but the efficiency of the worm-gear type slewing drive is Inferior to the toothed rotary drive. According to the openness of the slewing drive transmission mechanism, the slewing drive can be divided into open type and closed type. Generally, the open structure is mostly used in applications where the environment is too harsh, the maintenance and maintenance cycle is short, and the open structure is more convenient for the machine. Inspection, maintenance and maintenance are also easier to replace. Closed structures provide a longer maintenance lifecycle where environmental conditions do not change much and are below the level of environmental pollution below medium.