The helical gear tooth direction modification length Lc = 10mm, and the helical gear tooth direction modification amount CC is 0, 5, 10, 15, 20 and 25 respectively μ M, X and X of special node main gear node θ The amplitude frequency curve of vibration acceleration varying with speed in Z direction is shown in Figure 1. The variation law of vibration acceleration amplitude curve of driving wheel under different helical gear tooth profile modification parameters is roughly the same as that under different helical gear tooth profile modification parameters. The tooth direction modification amount of helical gear is 15 μ M, the amplitude of vibration acceleration decreases the most.
Helical gear tooth direction modification CC = 30 μ m. When the helical gear tooth direction modification length LC is 0, 5, 10, 15, 20 and 25mm respectively, X and X of the special node main gear node θ The amplitude frequency curve of vibration acceleration varying with speed in Z direction is shown in Figure 2. Comparing figures 1 and 2, it can be seen that under the same position, different helical gear tooth direction modification amount and helical gear tooth direction modification length, the variation trend of driving wheel vibration acceleration amplitude frequency curve is the same, but the amplitude is different. When the tooth modification length of helical gear is 10mm, the amplitude of vibration acceleration decreases the most.
