Inner tooth planet gear drive device

Abstract

The invention discloses a kind of internal tooth planetary transmission installment, including input axis, output shaft, external gear, planet bearing. By the eccentric wrap, the annular gear, the drive shaft constitution double crank 0 constructions, at least three annular gears superpositions in the same place, and have three annular gears superpositions in the same place, and has three drive shafts supporting, the drive shaft sets to not in three pair of planets bearings which in the identical straight line arranges, between the planet bearing and the drive shaft is loaded with the eccentric wrap, meshes the external gear center with the annular gear to be located in the triangle which forms by three drive shafts centers segment, between the planet bearing and the drive shaft is loaded with the eccentric wrap, meshes the external gear center with the annular gear to be located in the triangle which forms by three drive shafts centers segment. Besides retention original three links reduction gear merit, but also has vibrates slightly, the noise is low, the eccentric wrap wears the light characteristic.

Description

technical field [0001] The invention relates to a planetary gear transmission, in particular to a transmission using an inner-toothed planetary gear. Background technique [0002] At present, the existing internal tooth planetary gear transmission is a three-ring reduction transmission device, and the three-ring reducer uses three internal gears (internal tooth plates) as planetary gears. Chinese Patent No. 85106692 discloses a "three-ring deceleration (or speed-up) transmission device", which adopts three double-crank mechanisms at 120 degrees to each other. The moment of inertia generated by the inertial force on the shaft cannot be zero, that is, the dynamic balance cannot be achieved; when the inner gear ring plate meshes with the outer gear, the meshing force changes periodically. Therefore, the vibration is large and the noise is high; and at least three internal gears are required as planetary gears to continuously transmit power; when multipl...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems in the existing three-ring plate transmission device that the crankshaft itself cannot be automatically balanced and the wear of the eccentric sleeve is large, and provides an internal tooth planetary gear transmission device in which the internal gear performs plane planetary motion. , the inertial force of the internal gear only acts on the planetary bearings, and can automatically balance each other, the gear meshing force is constant, which can greatly reduce the vibration and noise caused by the inertial force

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