Harmonic drive gear reduction mechanism

摘要

A harmonic drive gear reduction mechanism includes a rigid inner spline with 2(n+1) teeth and a tooth module of m, a flexible outer spline inserted in the rigid inner spline has 2n teeth and a tooth module of m, a flexible bearing inserted in the flexible outer spline, and a wave generator inserted in the flexible bearing. A thickness between an inner diameter of the flexible bearing and a pitch diameter of the flexible outer spline is t, a cross sectional profile of the wave generator consists four curves, the first and third curves have a radius of curvature R, R=m (n+1)−t, a central angle of the first and third curves is k, and 10

主权项

1. A harmonic drive gear reduction mechanism, comprising:
a rigid inner spline being hollow circular structure provided with 2(n+1) teeth and having a tooth module of m; a flexible outer spline being a hollow circular structure inserted in the rigid inner spline and provided with 2n teeth and the same tooth module of m as the rigid inner spline; a flexible bearing being a hollow structure inserted in the flexible outer spline; and a wave generator inserted in the flexible bearing; wherein a thickness between an inner diameter of the flexible bearing and a pitch diameter of the flexible outer spline is defined as t, a cross sectional profile of the wave generator consists of a first curve, a second curve, a third curve and a fourth curve, the first and third curves have a same radius of curvature R, it satisfies the equation: R=m (n+1)−t, a central angle of the first and third curves is k degrees, and 10