Multistage epicyclic reduction gear for winch - has common internally toothed gear for all reduction stages

摘要

The winch has a drum (18) which is mounted on bearings (22, 24) in a housing (2,3,4). The drum (18) is driven through a multi-stage epicyclic reduction gear which has a sun wheel (6) which is coupled to the shaft (5) of the driving motor (1) and meshes with the planetary pinions (8). The coupling (7) between the sunwheel (6) and the shaft (5) is formed by a sleeve with internal splines which engage splines formed in the shaft (5) and sunwheel (6). The planetary pinions of all the stages of the reduction gear mesh with a common internally toothed gear (19) which engages the teeth of a fixed gear (20). USE - Epicyclic reduction gear for winches.