直齿锥齿轮齿廓修形

根据啮合刚度和噪声之间的关系,以修形减振降噪为目的,用旋转渐开线曲线对直齿锥齿轮进行齿廓修形.以减小齿轮传动误差和啮合刚度的波动大小为衡量标准,同时确保载荷变化呈平稳过渡.静态计算结果表明,直齿锥齿轮齿廓长修形具有较好的减振效果.直齿锥齿轮采用冷精锻进行齿廓修形,显著地降低了成本,这为齿轮传动系统的修形、减振、降噪和设计提供了一种新的研究方法.

Tooth profile modification of spur bevel gear

On the basis of relationship between meshing rigidity and noise and taking the modification, vibration deduction and noise dropping as the aims, the tooth profile modification was carried out on spur bevel gar by the use of revolving involute curve. Take the reduction of transmission error of gear and the fluctuation magnitude of meshing rigidity as the judging criterion and at the same time ensuring the variation of loading to be a smooth transi- tion. The result of static calculation showed that the tooth profile long modification of spur bevel gear possesses better effects of vibration reduction. Adopting the precision cold forging to carrying out the tooth profile modification of spur bevel gear evidently lowered the cost, thus provided a kind of new researching method for the modification, vibration reduction, noise dropping and design of the gear transmission system.