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Abstract: In view of characteristics of large gears, the general
principle of a rack-head on-machine measuring large gear profile errors
is stated. In the existence of error factors, the engaging process of
the measuring rack and measured involute profile is analyzed by means of
error-variation relation. And the precision design theory of the
on-machine measuring instrument with which large gear profile errors are
measured.
Key words: On-machine measurement Large gear Profile error
Rack-head Error-variation Engagement characteristics
CLC No: TH701
Received
20010928, received in revised form 20020912
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