高速透平转子的动平衡试验研究  

Experimental study on high-speed turbine rotor dynamic balancing

作　　者：程进杰 孙郁[1] 孙立佳[1] 季伟[1] 张武[1,2] 

机构地区：[1]中国科学院理化技术研究所,北京100190 [2]航天低温推进剂技术国家重点实验室,北京100028

出　　处：《低温与超导》2014年第6期6-9,共4页Cryogenics and Superconductivity

摘　　要：对于工作转速高达10多万的透平膨胀机转子,转子的动平衡精度是透平膨胀机能否安全稳定运行的关键。由于从事氦透平膨胀机研制的需要,作者对采购的动平衡机进行了改造,采用气体轴承支撑和高压气体驱动,避免了传统的支撑和驱动结构的振动对动平衡精度的影响,使平衡转速提高到2万转每分钟,最小可达剩余不平衡度为0.063μm。大大的提高了动平衡效果,为氦透平膨胀机的成功研制提供了强力的支撑。For the operating speed of up to 10 × 10^4rpm turbo - expander rotor, the rotor dynamic balance accuracy is the key of the safe and stable operation of the turbo - expander rotor. For the requirement of the development of helium turbo - expander, we reformed the purchased dynamic balancing machine and adapted gas bearing support and high - pressure gas drive, avoiding the effect of traditional support and drive structure to the accuracy of dynamic balancing. The dynamic balancing speed was improved to 2 × 10^4rpm, the minimum achievable residual unbalance degree is 0. 063μm. It greatly improved the balancing effect and will provide powerful support to the successfully development of the helium turbo - expander.

关 键 词：气体轴承 高速转子 动平衡 氦透平膨胀机 

分 类 号：TH877[机械工程—仪器科学与技术]