Taking the “Austrian” cycloid hypoid gear used in the axle as the research object, the geometric parameters and cutting parameters are calculated, and the full tooth surface model considering the blade arc and tip arc is established. The geometric contact analysis is carried out by using the improved TCA...
The active design technology of gear tooth surface designs the shape of gear tooth surface according to the functional requirements of gear transmission. First, the meshing performance of mating gear tooth surface is preset, that is, the transmission error curve and the best contact mark, and then the gear...
Due to the inevitable machining error and heat treatment deformation, the actually processed gear tooth surface often deviates from the theoretical design tooth surface or the standard gear tooth surface, and due to the general backwardness of domestic heat treatment technology, this deviation will be larger, sometimes up to...
Select a single pair of teeth for tooth surface contact stress analysis, import the three-dimensional solid models of double circular arc profile gear and four circular arc profile gear established in Pro /engineer software into ABAQUS software, and set the material elastic modulus E = 2 06 × 105Mpa,...
The dynamic characteristics of helical gear transmission considering tooth surface friction are studied and further studied and discussed: (1) Due to the large investment scale of heavy helical gear, the construction of helical gear transmission test-bed in the transmission basic research project is still in progress, and the experimental...
In the early research, because the dynamic impact theoretical analysis and experimental analysis of tooth friction are also limited, the tooth friction is often ignored. However, the research shows that the spur gear vibration and noise are still very large even if the transmission error of spur gear is...
In recent years, many scholars have done a lot of research on gear modification, and there are many modification methods of gear tooth direction. Referring to a large number of relevant materials, there are three common methods with good modification effect: tooth end modification, drum modification and spiral angle...
A-F in the figure is the tooth direction error diagram of 24 teeth of the pit type large gear after the test. Compared with before the test, the surface of the tooth direction error line of each tooth seems to have no obvious change, and the error lines on...
When the contact stress of automobile gear is too large, the plastic flow of tooth surface metal due to yield is called tooth surface plastic deformation. It generally occurs on the soft tooth surface. When the hardness of the tooth surface is low, due to short-term overload or large...
In order to facilitate the comparison with the parameters before the test, the smooth big gear after the test also adopts full tooth measurement. A-F in the figure is the tooth direction error diagram of the smooth big gear. Compared with that before the test, the tooth direction error...