歯面荷重 (K値) 1, 000psi遊星歯車式減速装置
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概要
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This paper is intended to provide full scale test results of the newly designed and manufactured marine epicyclic propulsion gear of gear ratio about 5.3 for the 15000 ps unit, in order to make the reduction gear much smaller in size and lighter in weight than those of the conventional type.<BR>Before designing the gear, basic investigations of gears concerning equal distribution mechanism of loading, tooth profile correction and hardness had already been carried out for the preparation of design data.<BR>The performance test of designed gear was done by back-to-back locked torque testing apparatus.<BR>Obtained test results are as follows:<BR>(1) Endurance running tests for 100 hours were successfully done with tooth loading 1000 psi for K-value as maximum.<BR>(2) Profile corrections were properly chosen on teeth of gear for heavy loading.<BR>(3) Equal distribution ratios of loading were within 3.4%, and 2.43% as mean.<BR>(4) Technical data necessary for small and light epicyclic gears were obtained. Using those data, the marine epicyclic gear of 800 psi for K-value is designed half in weight and 1/1.26 in volume compared with the same conventional type of 400 spi.