齿轮齿根部份的过渡曲线的曲率半径大小直接影响到齿的折断强度。随着曲率半径的增大有效地改变了危险截面的位置和尺寸,降低了应力集中系数并增加了传动的承 Gear tooth root part of the transition curve of the radius of curvature of a direct impact on the tooth breaking strength. As the radius of curvature increases, the position and size of the dangerous cross section are effectively changed, the stress concentration factor is reduced and the bearing of the transmission is increased