【摘要】 根据齿轮啮合原理,利用齿形法线法,推导出了修正余弦函数汽车变传动比转向器齿条齿扇啮合方程、齿廓方程,给出了锥形齿扇小端不根切、大端不变尖的条件和齿扇几何尺寸的计算公式,最后给出了变传动比齿扇的齿廓曲面具体算例和具体实现方法。分析表明该方法简洁实用,易于实现。更多还原

【Abstract】 Based on the theory of gear engagement, the equation of contact line between rack and gear sector and tooth profile of gear sector of variable ratio automobile steering gear were derived by profile normal line method. The calculation formulas of modification coefficient for the sector gear teeth tooth to avoid undercutting on the small end and pointing on the big end and the geometric dimensions of sector gear were given. Finally, a computation example was worked out. The analysis showed that the method of simple and practical, easy to implement.更多还原