# Dynamic speed and transmission error of spiral bevel gear

After the calculation, extract the speed change law of spiral bevel gear meshing transmission under various working conditions, as shown in Figure 1 ~ 5 respectively.

According to the speed change diagram lines under various working conditions in the above figures, in the initial stage of dynamic meshing of spiral bevel gear, the speed fluctuates to a certain extent, but soon tends to be stable. The speed change curve can only roughly express the meshing transmission characteristics of the driving and driven gears. In order to more intuitively obtain the speed change relationship between the driving and driven gears of spiral bevel gears, the parameter of transmission error is introduced again to analyze its dynamic meshing transmission characteristics in detail. According to the concept of transmission error introduced and the change law of rotation angle with time obtained by finite element dynamic analysis, the dynamic transmission error under various working conditions is obtained, as shown in Fig. 6 ~ 10 respectively.

According to the dynamic transmission error curve under various working conditions, the transmission error under various working conditions is small in the process of dynamic meshing of spiral bevel gears. The order of magnitude of transmission error is only 10-3, indicating that the driving wheel can drive the driven wheel to move smoothly. The correctness of the model and the high accuracy of the transmission are verified again. In the initial stage of transmission, the transmission error curve has a slightly larger vibration amplitude, indicating that in the initial stage of meshing transmission, meshing impact occurs, which makes the transmission error larger. With the progress of meshing, the amplitude shows a decreasing trend. It can be seen from Fig. 6, FIG. 9 and FIG. 10 that the transmission error fluctuation amplitude is slightly larger under the same speed and light load conditions. With the increase of load, the transmission error fluctuation amplitude decreases, which is mainly caused by the compensation effect of gear tooth deformation; It can be seen from figures 6, 7 and 8 that the fluctuation amplitude of transmission error is slightly smaller under the same load and high-speed working condition, and the vibration amplitude of transmission error is slightly larger under low-speed working condition. The amplitude of transmission error can show the meshing performance to a certain extent. The large fluctuation of transmission error under light load indicates that the gear vibration and noise are large in the meshing process; Low vibration and noise under heavy load conditions.

Scroll to Top