| 摘要 |
A joint (10) adaptable to wide range of speed and torque conditions and articulable to a maximum predetermined angle O of up to 30 DEG or greater includes a cylindrical socket (21) with a major inner diameter complementary to a predetermined diameter 'd' and a preselected number 'n' of longitudinal internal splines (22) integrally and uniformly extending inwardly from the major diameter and centered on planes (25) cyclically angularly disposed through a longitudinal axis (26) of the socket and a ball (32) with an exterior surface defined by rotation of the first circular arc (35) about a longitudinal axis (36) of the ball. The first arc point of origin is along a line defined by the intersection of the plane containing the first arc and the ball axis with a plane passing transversely through a midpoint on the ball axis. The first arc radius is determined as 'rball' = d (1.25-3 Tan O/2 + 2.25 Tan<2> O/2)1/2 and first arc point of origin is spaced from the ball axis by a distance 'xball' = d/2. A preselected number 'n' of external splines (33) with an exterior surface defined by rotation of a second circular arc about the ball axis intergrally outwardly extend from the ball centered on the planes cyclically angularly disposed through the ball axis. The second arc point of origin is also along the above identified line and its radius is determined as 'rspline' = d (1-Tan O/2). The second arc point of origin is spaced from the axis by a distance 'xspline' = d (.50-Tan O/2). The exterior edges of adjacent external splines are spaced at a constant distance and are meshably insertable between the internal splines when the ball and socket longitudinal axes are aligned. |
