分阶式双渐开线齿轮的光弹试验与弯曲强度试验研究  

RESEARCH FOR PHOTOELASTIC EXPERIMENT AND BENDING STRENGTHEXPERIMENT OF DOUBLE INVOLUTE GEAR WITH LADDER SHAPE TEETH

作　　者：许洪斌[1] 张光辉[1] 加藤正名[2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]日本东北大学工学部

出　　处：《机械工程学报》2000年第8期39-42,共4页Journal of Mechanical Engineering

基　　金：国家自然科学基金!资助项目(59775013)

摘　　要：采用冻结切片三维光弹试验方法，对双渐开线齿轮的弯曲应力进行研究，试验结果与有限元计算相吻合；在高频疲劳强度试验机上完成软、硬齿面轮齿的弯曲疲劳强度试验，结果表明轮齿的断裂位于齿根处30°与40°之间，当齿厚变位系数为0.08时，双渐开线齿轮的弯曲强度大约提高了16%。Bending stress of tooth of DIGLST (Double involute gear with ladder-shaped teeth ) is investigated by three dimensional freezing slice photoelastic experiment， the result is mostly alike in comparison with one by FEM. The experiment of soft -tooth gear and hard-tooth gear is carried on high frequency fatigue strength te ster， the crack type indicated that location of crack initiation is between 30 °and 40°.While the coefficient of tooth thickness is 0.08， the magnitude of decreased stress is about 15% in comparison with traditional involute gear.

关 键 词：渐开线齿轮 弯曲强度 疲劳试验 光弹试验 台阶式 

分 类 号：TH132.413[机械工程—机械制造及自动化]