HARMONIC DRIVE FEATURING HELIX-FACILITATED LUBRICATION

摘要

A harmonic drive featuring helix-facilitated lubrication includes a circular spline, a flexspline, a wave generator, and an agitating member. The flexspline meshes with the circular spline. The wave generator has a bearing installed within the flexspline, an elliptic wheel positioned in the bearing, and a shaft coupling connecting the elliptic wheel. The agitating member is located in a lubricant-holding space between the wave generator and the flexspline, and has a rotatory part and blade parts formed about a rotatory part. The rotatory part of the agitating member is connected to the shaft coupling of the wave generator, so that when the agitating member is driven by the shaft coupling, the helical blade parts agitate lubricant to perform convection, thereby better lubricating the bearing of the wave generator.

主权项

1. A harmonic drive featuring helix-facilitated lubrication, comprising:
a circular spline; a flexspline, being positioned in the circular spline so as to mesh with the circular spline; a wave generator, having a bearing positioned in the flexspline, an elliptic wheel positioned in the bearing, and a shaft coupling connected to the elliptic wheel, so that a lubricant-holding space is defined between the wave generator and the flexspline; and an agitating member, being positioned in the lubricant-holding space and having a rotatory part and at least one blade part, wherein the rotatory part is connected to the shaft coupling of the wave generator, and the blade part is such provided on a peripheral surface of the rotatory part that the blade part extends in a helical pattern along an axial direction of the rotatory part.