Wave Speed Reducer Having Self-locking Function And Compound Type Reducer Device

摘要

The invention provides a wave speed reducer having a self-locking function comprising a structure for outputting driving rotation of a bearing member or a spline wheel at a specific reduction ratio which drives rollers to rotate by a cam. A designed convex arc of the cam has self-locking function of restricting the rollers to reversely rotate so as to form a compound type reducer device having a multi-reducer function by mutually combining the wave speed reducer and a planetary gear set. To solve conventional problems, poor driving accuracy at tiny rotation angle and scarcity of self-locking function for conventional reducers are improved.

主权项

1. A wave speed reducer having a self-locking function comprising in co-axial arrangement:
a cam at a cam axis circumference of which being a cam periphery comprising one or more formed convex arcs; a spline wheel disposed at a cam circumference, a plurality of spline apertures being arranged at an inner wall of the spline wheel; and a bearing member disposed between the cam and the spline wheel, a plurality of bearing apertures being arranged at equal distance at a bearing member circumference, a roller being disposed at an active space of every bearing aperture, the cam driving the convex arc to rotate by an input torque, the convex arc being pressed and pushed to drive the roller to move into a corresponding spline aperture so as to actuate a rotational output at a specific reduction ratio generated by one of the spline wheel and the bearing member; wherein, formation of the convex arc is restricted by the following equation:
F×R sin θ