【摘要】 用几何的方法对正变位齿轮齿顶厚度必然变小加以了证明，为设计正变位齿轮传动时为什么要校核齿顶厚度，提供了理论依据。更多还原

【Abstract】 The proof of thinned addendum thickness of a gear tooth developed with positive correction using geometric approach is presented in this paper,therefore the theoretical principle,on which the transmission design of gears with positive correetion is based,is given更多还原