| 摘要 |
This invention relates to a kind of gear pair for power transmission in speed increaser or reducer and its tooth profile forming method, the tooth profiles of driving gear ( 1 ) and driven gear ( 2 ) are separately designed from the reference points, the upper tooth profiles ( 15, 25 ) are composed of conjugate curves, while the lower tooth profiles ( 14, 24 ) are composed of smooth convex analytic curves. The reference point ( 22 ) of the driven gear ( 2 ) situates near the middle of the working depth, while the reference point ( 12 ) on the tooth profile ( 11 ) of the driving gear ( 1 ) and the reference point ( 22 ) on the driven gear tooth flank ( 21 ) are a pair of conjugate point This invention can greatly enhance the load capacity of the gear pair.
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