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Flank-load-carrying-capacity of oil-lubricated thermoplastic gears for power transmission

用于动力传输的油润滑热塑性齿轮的齿面承载能力

基本信息

批准号：
393025460
负责人：
Professor Dr.-Ing. Karsten Stahl
金额：
--
依托单位：
Lehrstuhl für Maschinenelemente
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2018
资助国家：
德国
起止时间：
2017-12-31 至 2020-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/393025460?language=en
关键词：
Flank load carrying capacity oil

项目摘要

The use of plastic gears for power transmitting gearboxes is gaining more and more importance. Low density and high damping characteristics are plastic specific advantages. Temperature dependent material parameters and load carrying capacity, however, restrict the scope of application. Running in dry condition may cause melting of the plastic teeth and therefore failure of the whole gearbox. Therefore the knowledge of the tooth temperature is of high importance for plastic gear development. Current calculation methods such as VDI 2736 are derived from steel standards and therefore neglect plastic specific material characteristics. In the scope of a DFG-project, several thermoplastic materials have been investigated regarding tooth load-carrying-capacity. Modified calculation approaches to calculate tooth root stresses have been developed. In the current research project, adequate thermoplastic materials are now investigated regarding tooth flank-load-carrying-capacity under lubricated conditions. Experimental investigations for the determination of the tooth temperatures as well as runs in back-to-back testing will be performed. In addition theoretical studies using numerical and analytical approaches will be conducted and validated using experimental results. The objective is to extend the current state of knowledge regarding flank-load-carrying-capacity for plastic gears and to develop a safe and complete calculation method.

塑料齿轮在动力传动齿轮箱中的应用越来越重要。低密度和高阻尼特性是塑料特有的优点。然而，温度相关的材料参数和承载能力限制了应用范围。在干燥条件下运行可能会导致塑料齿熔化，从而导致整个齿轮箱失效。因此，了解齿温对塑料齿轮的开发具有重要意义。目前的计算方法，如1982736是从钢标准，因此忽略了塑料的具体材料特性。在DFG项目的范围内，已经对几种热塑性材料的牙齿承载能力进行了研究。提出了计算齿根应力的修正计算方法。在目前的研究项目中，充分的热塑性材料，现在调查有关齿面承载能力在润滑条件下。将进行用于确定齿温度的实验研究以及背靠背测试中的运行。此外，还将使用数值和分析方法进行理论研究，并使用实验结果进行验证。其目的是扩大目前的知识状况，关于侧面承载能力的塑料齿轮，并制定一个安全和完整的计算方法。