Method for calculating engagement noises of spiral bevel gear pair

Abstract

The invention relates to a method for calculating engagement noises of a spiral bevel gear pair. The calculating method comprises the followings steps: taking a tooth of the spiral bevel gear pair as a spring, and taking a gear body as a mass vibration system; setting a mounting system in a rigid non-vibration state except the environment noises; selecting a reference point according to a given load and noise value, confirming the noise value, the load, the transmission ratio of the spiral bevel gear pair and the pitch circle speed of a driving wheel according to the design requirement of a finished vehicle, and calculating the relative sliding ratio and the superposition degree; calculating the vibration speed coefficient of a spiral bevel gear and the amplitude of vibration of the spiral bevel gear pair, converting a helical angle, calculating the engagement noises of the spiral bevel gear pair, and analyzing the result. The calculating method provided by the invention is simple, the calculation time is short, the error is small, and the accuracy is high; through the calculation and analysis, the structural parameters of the spiral bevel gear pair is optimized, and references are provided for selecting manufacturing process and accuracy reasonably and reducing the engagement noises; and the design efficiency is improved, the design and manufacturing cycle is shortened, and the manufacturing cost is lowered effectively.

Description

technical field [0001] The invention relates to noise calculation of meshing of spiral bevel gear pairs. Background technique [0002] Gears are widely used in mechanical products such as automobiles and machine tools, and gear noise is an important parameter for evaluating gear performance. Spiral bevel gears are widely used in machinery industries such as automobiles and machine tools because of their large speed ratio and stable transmission. At present, there are many studies on the formation mechanism of the meshing noise of the spiral bevel gear pair. The method of calculating the noise of the spiral bevel gear pair is based on the calculation method of the noise of the cylindrical gear. According to the applied working conditions and related experimental research data, the noise of the cylindrical gear Appropriate corrections were made to the calculation method. The meshing noise of the spiral bevel gear pair calculated by this method is highly dependent on the test...

AI Technical Summary

Problems solved by technology

The meshing noise of the spiral bevel gear pair calculated by this method is highly dependent on the test data, and when it is used to guide the design and manufacture, the actual value and the calculated value are poorly consistent

In order to ensure that the meshing noise of the spiral bevel gear pair meets the design requirements, it is realized by improving the manufacturing accuracy. This method not only increases the difficulty of the process, but also increases the manufacturing cost and takes a long time to manufacture.

Images