PLANETARY GEAR REDUCER LISS

摘要

The invention relates to mechanical engineering, in particular to a planetary gear reducer structural design provided with an external wheel, internal teeth and several satellite gears each of which is engageable with the external wheel at several points. The inventive gear reducer can be used for gear trains in machines, plants and mechanisms for transferring a power load at an increased torque and reduced noise level. Said planetary gear reducer consists of a body comprising a high speed shaft, a low speed shaft, an external toothed wheel provided with internal teeth having a corresponding contact shape, a carrier connected to the low speed shaft, several satellite gears which are eccentrically arranged in the carrier and provided with external teeth and a central gear connected to the high speed shaft, wherein each satellite gear is brought into contact with the external toothed wheel at least at three points forming a curvilinear contact path. The number of the central gear teeth is less than the difference between the number of teeth of the external gear wheel and double the number of teeth of the satellite gear. The aim of said invention is to develop a planetary gear reducer which has an increased teeth contact ratio and high load capacity of a planetary transmission by ensuring multi-tooth contact of each satellite gear with the external wheel at a substantial difference between the teeth of the internal and external toothed wheels and by increasing the reduction ratio of a single reduction gear unit.