ECCENTRICALLY CYCLOIDAL ENGAGEMENT OF TOOTHED PROFILES (VARIANT EMBODIMENTS)

摘要

The eccentrically cycloidal engagement of toothed profiles relates to mechanical transmissions for converting rotary motion into rotary or reciprocal motion and can be used in cylindrical, conical or planetary reduction gears and also rack and pinion drives, which have a high gear ratio, small dimensions and a high load carrying capacity. One of the profiles is in the form of a wheel with a single spiral tooth. The working part of the tooth is described in the principal cross-sections by arcs (6, 7) of a circle (8) which is eccentrically offset from the axis of rotation of the wheel. The mating working surface of the teeth of the second profile is described in the principal cross-sections by portions of the fronts (14, 15) of a cycloidal curve (16). The tips (17) and troughs of the cycloidal teeth are described by arcs of coaxial circles (19, 21). The design of the profiles makes it possible to reduce the surface requiring precision machining.