摘要
建立了斜齿圆柱齿轮承载接触分析模型,综合考虑齿距偏差、齿廓偏差和螺旋线偏差,提出了考虑轮齿误差时齿轮啮合刚度计算方法。分析了在不同精度等级和载荷作用时,斜齿轮啮合刚度和接触线总长度的变化规律。计算结果表明:啮合刚度曲线在一个啮合周期内的变化趋势和实际接触线总长度变化趋势基本一致。在同一精度等级下,随着载荷的增大,含误差的齿轮啮合刚度逐渐增大,并最终趋近于理想齿轮啮合刚度。而在相同载荷下,由于误差的存在,齿轮精度等级越高,其啮合刚度越大。
Considering pitch deviation, profile deviation and helix deviation, the loaded tooth contact model of a helical gear pair is built. A method to calculate the mesh stiffness with gear errors is proposed. The variation law of mesh stiffness and the total length of contact line are calculated when different loads are applied on gears with different precision grades. The calculation results show that the fluctuating state of mesh stiffness is approximately identical with the actual total length of contact line. In a certain precision grade, the mean value of mesh stiffness increases gradually with the in- crease of mesh force and finally approaches the value of ideal gears. The tooth errors of gear with high- er precision will decrease, the mesh stiffness will increase under the same mesh force is applied.
出处
《机械传动》
CSCD
北大核心
2014年第5期32-35,共4页
Journal of Mechanical Transmission
关键词
斜齿轮
啮合刚度
齿轮误差
接触线长度
Helical gear Mesh stiffness Gear error Length of contact line
