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Abstract: The loaded tooth contact analysis (LTCA) plays an important
part in designing the spiral bevel gear drives with high performance.
The tooth edge contact of spiral bevel gears in operating is
unavoidable, specially under bearing loads. But the tooth edge contact
is ignored frequently which makes the analyzed results to deviate from
real operating conditions. An accurate and very convenient edge tooth
contact analysis technique of spiral bevel gears is developed, by which
the contact points on tooth edges could be determined. Further, the main
directions between two tooth surfaces on every edge contact point, that
is, the possible contact point pairs, are found by a numerical search
method. Finally, the tooth edge contact problem is resolved
successfully. The compared and analyzed results show that the tooth edge
contact has considerable influences on the strength and dynamics
behaviors of spiral bevel gears and a complete engagement course under
load can be obtained.
Key words: Spiral bevel gear Edge contact Loaded contact
CLC No: TH132
国家自然科学基金(50175090)和航空科学基金(00C53017)资助项目. Received 20010908, received in
revised form 20011220
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