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在技术革新中,常遇到传动轴的强度计算以决定轴径的尺寸,利用如图所示的诺模图,可以很方便地计算出轴径。该图是根据扭转强度计算公式d=A~((N/n)(1/3))扭转刚度计算公式d=12~((N/n)(1/4))许用扭转角度[φ°]=1/4°绘制而成的。如已知传动轴所传递的功率(一般情况下即为电动机的功率)和转速,可根据所选轴的材料,从表中查得许用扭转应力[τ]值,再根据[τ]值对应的直线以及d=12~((N/n)(1/4))直线分别求得不同的轴径d,二者取较大值。
In technological innovation, often encounter the drive shaft strength calculation to determine the size of the shaft diameter, the use of the nomogram shown in the figure, you can easily calculate the shaft diameter. The graph is based on the torsion strength calculation formula d = A ~ ((N / n) (1/3)) Torsion stiffness d = 12 ~ ((N / n) °] = 1/4 ° drawn from. If the power transmitted by the drive shaft is known (generally, the power of the motor) and the speed, the allowable torsional stress [τ] value can be found from the table according to the selected shaft material, and then the value of [τ] Corresponding to the straight line and d = 12 ~ ((N / n) (1/4)) straight line were obtained for different shaft diameter d, whichever is greater.