Planetary reducer anti-backlash structure

Abstract

The utility model provides a kind of planet reducer gap-eliminating structure, it is related to planetary reduction structure technical field, including reducer shell, input sun gear, planet carrier assembly, planetary gear set and inner ring gear;The planet carrier assembly is equipped with the notch of radial extension;The upper and lower ends of the planet shaft are equipped with the flat position structure compatible with the shape of the notch;The upper and lower ends of the planet shaft are respectively installed first radial spring and second radial spring;The first radial spring applies the spring force of radially inward to planet shaft, so that large planet wheel is pressed to input sun gear;The second radial spring applies the spring force of radially outward to planet shaft, so that small planet wheel is pressed to inner ring gear.The utility model has the beneficial effect that, by first radial spring, second radial spring applies reverse radial force to planet shaft, forms overturning moment, drives planetary gear set to press input sun gear and inner ring gear simultaneously, can eliminate two meshing side gap synchronously, help to improve transmission accuracy.

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