The book explores the geometric and kinematic design of the various
types of gears most commonly used in practical applications, also
considering the problems concerning their cutting processes. The
cylindrical spur and helical gears are first considered, determining
their main geometric quantities in the light of interference and
undercut problems, as well as the related kinematic parameters.
Particular attention is paid to the profile shift of these types of
gears either generated by rack-type cutter or by pinion-rack cutter.
Among other things, profile-shifted toothing allows to obtain teeth
shapes capable of greater strength and more balanced specific sliding,
as well as to reduce the number of teeth below the minimum one to avoid
the operating interference or undercut. These very important aspects of
geometric-kinematic design of cylindrical spur and helical gears are
then generalized and extended to the other examined types of gears most
commonly used in practical applications, such as: straight bevel gears;
crossed helical gears; worm gears; spiral bevel and hypoid gears.
Finally, ordinary gear trains, planetary gear trains and face gear
drives are discussed.
Includes fully-developed exercises to draw the reader's attention to the
problems that are of interest to the designer, as well as to clarify the
calculation procedure
Topics are addressed from a theoretical standpoint, but in such a way as
not to lose sight of the physical phenomena that characterize the
various types of gears which are examined
The analytical and numerical solutions are formulated so as to be of
interest not only to academics, but also to designers who deal with
actual engineering problems concerning the gears
