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Dynamic load of high-speed helical gear of electric vehicle

Energy and environmental problems are becoming increasingly serious, and new energy vehicles have attracted much attention. Electric vehicles have become the research focus of various countries with their advantages of zero emissions, low noise, extensive power sources and so on. There are many similarities between electric vehicles and fuel...

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Contact stress spectrum of helical gear

Parameters Driving wheel Driven wheel Number of teeth 29 48 Modulus 1.75 1.75 Helix angle 16 16 Accuracy class 7 7 The electric vehicle reducer gear of the collected load spectrum is helical gear, and the material is 20CrMnTi. Its main parameters and material properties are shown in Table...

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Bending torsion shaft dynamic model of helical gear pair

Taking the high-speed input stage gear pair in the secondary reducer of a pure electric vehicle as the research object, its basic parameters and three-dimensional model are shown in Table 1 and figure 1 respectively. Parameters Driving wheel Driven wheel Number of teeth Z 22 59 Gear rotation direction...

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Overall error curve of helical gear transmission

According to the actual meshing sequence of the helical gear, the overall error curve of the unit helical gear pair is unified in the meshing plane to obtain the overall error curve of the helical gear pair in the complete meshing cycle. It can be seen from Figure 1...

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Contact pressure distribution of helical gears

The contact pressure history curve during helical gear meshing is shown in Figure 1. It can be seen that the contact pressure of helical gear has not changed greatly at the beginning like the contact stress, but has been relatively stable as a whole. The trend of contact pressure...

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Contact analysis of modified helical gear

1. Law of equivalent stress and time change during helical gear meshing The variation law between the dynamic contact equivalent stress of helical gear and practice is given, as shown in Figure 1 and 2. From figures 1 and 2, it can be seen that the overall maximum stress...

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