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首页> 外文会议>Leeds-Lyon Symposium on Tribology; 20040907-10; Leeds(GB) >Power Loss in FZG gears lubricated with industrial gear oils: Biodegradable Ester vs. Mineral oil
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Power Loss in FZG gears lubricated with industrial gear oils: Biodegradable Ester vs. Mineral oil

机译：用工业齿轮油润滑的FZG齿轮的功率损耗：可生物降解的酯与矿物油

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摘要

Two industrial gear oils, a reference paraffinic mineral oil with a special additive package for extra protection against micropitting and a biodegradable non-toxic ester, are compared in terms of their power dissipation in gear applications. The physical properties, wear properties and chemical contents of the two lubricants are characterized. The viscosity-temperature behaviors are compared to describe the feasible operation temperature range. Standard tests with the Four-Ball machine and the FZG test rig characterize the wear protection properties. Biodegradability and toxicity tests are performed in order to assess the biodegradability and toxicity of the two lubricants. Friction and wear tests have been performed with a configuration that combines rolling/sliding in a line contact simulating the working conditions on gears. The results for the ester oil presented a lower friction coefficient and operating temperature throughout tthe test in relation to mineral oil. Power loss gear tests are performed on the FZG machine using type C gears, for wide ranges of the applied torque and input speed, in order to compare the energetic performance of the two industrial gear oils. The results of the power loss gear tests show that the operating temperature of the ester oil is always smaller than that of the mineral oil. Lubricant samples are collected during and at the end of the gear tests. The lubricant samples are analyzed by Direct Reading Ferrography (DR3) in order to evaluate the wear particles concentration (CPUC) and the index of wear particles severity (ISUC). Both parameters indicate that the gear lubricated with the mineral oil suffered more flank tooth wear than the one lubricated with the biodegradable ester. The influence of each lubricant on the friction coefficient between the gear teeth is discussed taking into consideration the operating torque and speed and the stabilized temperature.
机译：比较了两种工业齿轮油，一种具有特殊添加剂包的参考链烷烃矿物油，可提供额外的保护以防止微点蚀，以及一种可生物降解的无毒酯，它们在齿轮应用中的功耗方面得到了比较。表征了两种润滑剂的物理性质，磨损性质和化学含量。比较了粘度-温度行为以描述可行的操作温度范围。使用四球机和FZG试验台进行的标准测试表征了磨损保护性能。为了评估两种润滑剂的生物降解性和毒性，进行了生物降解性和毒性测试。摩擦和磨损测试是通过将滚动接触/滑动接触相结合的配置进行的，以模拟齿轮的工作条件。在整个测试中，与矿物油相比，酯油的结果显示出较低的摩擦系数和较低的工作温度。为了比较两种工业齿轮油的能量性能，在CZ齿轮的FZG机器上进行了功率损耗齿轮测试，测试的扭矩和输入转速范围很广。动力损失齿轮测试的结果表明，酯油的工作温度始终低于矿物油。在齿轮测试期间和结束时收集润滑剂样品。为了评估磨粒浓度（CPUC）和磨粒严重性指数（ISUC），使用直读铁谱（DR3）对润滑剂样品进行了分析。这两个参数都表明，用矿物油润滑的齿轮比用可生物降解的酯润滑的齿轮齿面磨损更大。讨论了每种润滑剂对齿轮齿之间摩擦系数的影响，同时考虑了操作扭矩和速度以及稳定的温度。

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