The out-of-line meshing deformation and stiffness curves associated with the impact impact can also be derived from errors and deformations. To save space, a set of stiffness curves are considered for consideration and not considering the out-of-line meshing. Since the in-line meshing is the main excitation source of the gear transmission, the meshing engagement is taken as a comparison object.
Under the ideal condition, the stiffness curve of the single pair of teeth along the meshing line, the stiffness curve of the single pair of teeth along the meshing line when the gear teeth are deformed by the load to cause the meshing starting point to deviate from the meshing line. Pb1=pb2 means that the transmission has no base joint error. Without the base section error and without considering the deformation condition of the gear teeth, the gear transmission has no biting and no impact; in the absence of the base joint error, but when considering the gear teeth When the load is deformed, the gear 1 is driven to have a biting impact, but there is no impact.
When considering the out-of-line meshing, the stiffness value of the meshing starting point is larger than the theoretical starting meshing starting value, and the stiffness curve changes from large to small. The calculation shows that when the deformation and error are considered at the same time, the actual meshing starting point stiffness value of the cold-rolled strip is larger than the value in Fig. 5, and the change of the stiffness curve is more significant. The larger the load, the larger the error, and the more significant the change. Changes in stiffness cause changes in the dynamic response of the system, further causing vibration and noise in the system. Therefore, the actual gear transmission stiffness of the external meshing should be considered in the dynamic analysis of the gear. The calculation method of the external meshing stiffness proposed in this paper can combine the external meshing with the actual stiffness calculation, which is a very effective and practical method. .
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