The utility model relates to a kind of planetary gear
reducer, belong to the technical field of speed
reducer. Including shell, output mechanism and multistage star wheel
speed reduction mechanism, output mechanism includes output shaft, each star wheel
speed reduction mechanism includes sun gear, planetary gear, star wheel axle and
planet carrier, and cylindrical roller support is equipped between planetary gear and star wheel axle;The sun gear of primary star wheel
speed reduction mechanism is keyed connection with the power shaft of motor, shell is equipped with shell internal gear ring,
planet carrier is equipped with star carrier internal gear, star carrier internal gear of upper star wheel speed reduction mechanism is engaged with the sun gear of lower star wheel speed reduction mechanism, star wheel axle of N star wheel speed reduction mechanism is connected with output shaft. The utility model compact structure, it can realize wide range of speed
reduction ratio,
power transmission is stable, planetary gear, star wheel axle and cylindrical roller form integrated planetary gear bearing, can satisfy the requirement of
bearing capacity, small space occupies, the speed
reducer also has higher
bearing capacity and smaller volume, application is more widely.