Improved method for optimally designing noise of main parameter of bevel gear of transmission

Abstract

The invention relates to an improved method for optimally designing noise of a bevel gear, belonging to the field of optimal design of transmission gears. The invention provides an improved method for optimally designing a main parameter of a bevel gear of a transmission through an Ishikawa method based on a material mechanics theory; by means of the method, the gear engagement transmission error can be reduced; therefore, vibration and noise in an engaging process can be reduced; the service life is increased; and the driving and riding comfort is improved. The method disclosed by the invention comprises the following steps: (1), establishing a calculation model of the dynamic engagement stiffness and the dynamic transmission error in the engagement process of the bevel gear, wherein the calculation model is used for calculating a fluctuation value of the dynamic engagement transmission error of the bevel gear; (2), based on the calculation model obtained in the step (1) and gear design regulatory requirements, establishing an optimal design model of the main parameter of the bevel gear of the transmission aiming to reduce the noise and the volume and simultaneously ensure the intensity and the reliability in the use process, and optimally designing the bevel gear of the transmission; and (3), checking an optimal parameter obtained by optimal design so as to ensure the accuracy of an optimal result.

Description

Technical field [0001] The present invention is the field of noise optimization design in the gear gear. More precisely, the present invention is an oblique noise optimization design method based on improving Ishikawa Law. Background technique [0002] During the transmission gear meshing process due to deformation, gap, etc., it has a great impact on the noise of the vehicle. The noise reduction design of the transmission gear can reduce the gear meshing impact, improve the reliability and life of the gear, and improve the car to improve the carComfort and driving quality.At present, both the research community and the engineering community improve the gear meshing quality and reduce the meshing noise through the repair processing of the gear.In fact, in the early days of the gear gear design, the number of gears, molds, and spiral angles also had an important impact on the noise of the gear meshing process. However, the current treatment of the main parameters of the gear desig...

AI Technical Summary

Problems solved by technology

These softwares have the characteristics of accurate calculation, but special design software such as MASTA cannot optimize the design of the transmission error. In the design, it is necessary to manually modify the parameters and try again and again to obtain an acceptable fluctuation range of the transmission error. In the process of modifying the parameters, other indicators of the transmission It also has an impact, so the modification is cumbersome and the results are unsatisfactory. However, finite element software such as ANSYS is based on the calculation principle of finite element, the modeling is complicated, the calculation process is long, and a single calculation is acceptable. , the length of time is too long during extremely heavy parameter iterations

The Ishikawa method, which is based on the theory of material mechanics and has a fast calculation speed, is suitable for the calculation of the dynamic transmission error of spur gears. Today, most transmission gears use helical gears, but there is no research on the fast calculation method for helical gear transmission errors.

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