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Abstract: A
group of formulae for the geometric parameters, such as the gear
mounting distance, crossed axes angle, center distance, and the helix
angle of tooth trace in reference plane of reference rack, of a
crossed-axes gear drive of different arrangements are derived based on
the analysis of the spatial mesh relationship between conjugate gears
and their reference rack, and a set of mounting parameter guarantee
design method for conical involute gear pairs with crossed axes is
presented. The formulae can be applied not only to all of the possible
independent forms of the crossed-axes gear drive, but also to the case
of gearing with parallel axes and intersecting axes. As a result, any
conical involute gears, which transmit rotational motion between two
shafts in any relative positions, can be readily designed by means of
this group of formulae. The design theory and methods are tested by the
design and processing of several sets of crossed axes gears, and is also
expected to be the theoretical foundation for further researching the
design of conical involute gears.
Key words: Conical
involve gears Crossed-axes Gearing principle
CLC No: TH111
Received 20030226, received in revised form
20030908
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