斯特林制冷机气动腔弹簧疲劳强度跑合设备研究  

Study on the fatigue strength of maneuvering cavity spring of Stirling cryocooler

作　　者：刘应应 张继宇 王涛 姜昆 张浩 LiuYingying;Zhang Jiyu;Wang Tao;Jiang Kun;Zhang Hao(Anhui Province Key Laboratory of Cryogenics Technology,Heifei 230088,China;The 16th Institute of China Electronics Technology Group Corporation,Heifei 230088,China)

机构地区：[1]低温技术安徽省重点实验室,合肥230088 [2]中国电子科技集团有限公司第十六研究所,合肥230088

出　　处：《低温与超导》2019年第1期26-30,96,共6页Cryogenics and Superconductivity

基　　金：所控项目(51160020180087QZS)资助

摘　　要：斯特林制冷机膨胀机圆柱弹簧是决定斯特林制冷机冷量的关键件,其设计制造过程中产生的微小材料缺陷会使得弹簧在使用寿命内发生断裂造成制冷机故障。为了在圆柱弹簧应用前筛除残次件,提高产品可靠性,开展了一种精密圆柱弹簧跑合设备的设计与研究,并制备了设备样机。结果表明,提出的弹簧疲劳跑合设备具有较好的精度与跑合效果。Stirling cryocooler expanders are the key to determine the cool capacity of Stirling cryocooler.The small material defects generated during the design and manufacture process will cause the spring to break during the service life and cause the refrigerator to malfunction.In order to screen the residual parts before the application of the cylindrical spring and improve the re- liability of the product,a precision cylindrical spring and aprototype of the equipment were designed and studied.The results show that the spring fatigue running equipment proposed in this paper has good equipment precision and running-in effect.

关 键 词：圆柱弹簧 疲劳强度 斯特林制冷机 

分 类 号：O348.3[理学—固体力学]