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首页> 外文期刊>Journal of the American Helicopter Society >Face Gear Surface Durability Investigations
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Face Gear Surface Durability Investigations

机译：平面齿轮表面耐久性研究

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Experimental fatigue tests were performed to determine the surface durability life of a face gear in mesh with a tapered spur involute pinion. Twenty-four sets of gears were tested at three load levels: 7200, 8185, and 9075 lb-inch face gear torque, and 2190-3280 rpm face gear speed. The gears were carburized and ground, shot-peened and vibro-honed, and made from vacuum induction melting-vacuum arc remelting Pyrowear 53 steel per AMS 6308. The tests produced 17 gear tooth-spalling failures and 7 suspensions. For all the failed sets, spalling occurred on at least one tooth of all the pinions. In some cases, the spalling initiated a crack in the pinion teeth that progressed to tooth fracture. Also, spalling occurred on some face gear teeth. The American Gear Manufacturing Association endurance allowable stress for a tapered spur involute pinion in mesh with a face gear was determined to be 275 ksi for the material tested.
机译：进行了实验疲劳测试，以确定带有锥形正齿轮渐开线小齿轮的啮合面齿轮的表面耐久性寿命。测试了二十四个齿轮组的三个负载水平：7200、8185和9075 lb英寸的端面齿轮转矩以及2190-3280 rpm的端面齿轮转速。齿轮经过渗碳，磨削，喷丸处理和振动打磨处理，并按照AMS 6308由真空感应熔炼-真空电弧重熔Pyrowear 53钢制成。测试产生了17个齿轮飞齿故障和7个悬架。对于所有失败的齿轮组，在所有小齿轮的至少一颗牙齿上发生剥落。在某些情况下，剥落会在小齿轮上引发裂纹，进而导致牙齿断裂。另外，在一些平面齿轮齿上发生剥落。美国齿轮制造协会对与平面齿轮啮合的锥形正齿轮渐开线小齿轮的持久容许应力确定为275 ksi。

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