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首页> 外文期刊>Tribologia >CHARACTERISTICS OF A NEW TEST RIG AND METHODOLOGY FOR CYCLIC TESTING OF GEAR TOOTH BENDING FATIGUE STRENGTH
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CHARACTERISTICS OF A NEW TEST RIG AND METHODOLOGY FOR CYCLIC TESTING OF GEAR TOOTH BENDING FATIGUE STRENGTH

机译：齿轮齿弯曲疲劳强度循环试验的新试钻和方法的特点

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Tooth fracture is the most dangerous form of gear wear that excludes the gear from further use. In order to counteract the occurrence of this type of damage, it is very important to properly design the toothed gear. To calculate the gear tooth bending strength, a strength parameter called the nominal stress number σ_(Flim) is necessary. ISO 6336-5:2003(E) and available material databases provide σ_(Flim) values for the most popular engineering materials used for gears, including those for case-hardened steels. There is, however, no data for a new generation of nanostructured engineering materials, which are the subject of research conducted at the Tribology Department of ITeE - PIB. The σ_(Flim) parameter is most often determined in cyclic fatigue tests on toothed gears with specially selected tooth geometry. In order to determine the above strength parameter, a pulsator (symbol T-32) was developed and manufactured at ITeE-PIB in Radom. The article presents a new device, research methodology, and the results of verification tests for case-hardened steel 18CrNiMo7-6, confirming the correctness of the adopted design assumptions and the developed research methodology. The results of tooth bending fatigue tests are the basis for the selection of a new engineering material dedicated to gears, which later undergoes tribological testing.
机译：牙齿骨折是从进一步使用的齿轮排除齿轮的最危险形式。为了抵消这种类型的损坏的发生，正确设计齿轮是非常重要的。为了计算齿轮齿弯曲强度，需要称为标称应力次数σ_（FLIM）的强度参数。 ISO 6336-5：2003（e）和可用的材料数据库为用于齿轮的最流行的工程材料提供Σ_（flim）值，包括用于硬化钢材的齿轮。然而，没有关于新一代纳米结构工程材料的数据，这些工程材料是在艾丽 - PIB的摩擦学部门进行的研究主题。 Σ_（flim）参数通常在具有特殊选择的齿几何形状的齿轮上的循环疲劳试验中确定。为了确定上述强度参数，在Radom中在ITEE-PIB中开发并制造脉冲器（符号T-32）。本文提出了一种新的设备，研究方法，以及核心硬化钢18crnimo7-6的验证试验结果，确认采用设计假设和发达的研究方法的正确性。牙齿弯曲疲劳试验的结果是选择专用于齿轮的新工程材料的基础，后来经历了摩擦学检测。

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