鏡面研削と歯形修整による平歯車の騒音と振動の低減

概要

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Main test gears were mirror-like finished using a CNC gear grinder with a cubic-boron-nitride (CBN) wheel. Running tests were conducted using a new gear load testing machine with traction elements for loading test gears. Effectiveness of mirror-like grinding was shown by a comparison test conducted using conventionally ground and mirror-like ground gears with almost the same accuracy (0 class of JIS). Reduction in running noise achieved in the case of mirror-like ground gears may be ascribed to a reduction in rubbing noise due to formation of nearly full EHL oil film between contacting teeth. Appreciable reductions in gear noise and vibration were a chieved when a proper amount of profile modification was given to the mirror-like ground gears. The load sharing ratios of a pair of teeth and the rotational errors of the pair of the gears were precisely calculated using a computer. It was found that the best modification is a little greater than the elastic deformation of contacting teeth of test gears.
社団法人日本機械学会の論文
1990-12-25