摆盘压缩机气缸分布圆半径优化设计  

Optimized design of cylinder distribution circle radius for wobble plate compressor

作　　者：王强 李鹏飞[2,3] 杜鑫 王素金[2,3] 高秀峰 李云 WANG Qiang;LI Pengfei;DU Xin;WANG Sujin;GAO Xufeng;LI Yun(School of Chemical Engineering and Technology,Xi'an Jiaotong University,Xi'an 710049,China;Qingan Group Co.,Ltd.,Xi'an 710082,China;AVIC Qingan and XJTU United Research Center for High-Pressure and High-Speed Fluid Machinery,Xi'an 710049,China)

机构地区：[1]西安交通大学化学工程与技术学院,西安710049 [2]航空工业庆安集团有限公司,西安710082 [3]航空工业庆安-西安交通大学高压高速流体机械联合研究中心,西安710049

出　　处：《流体机械》2025年第1期33-40,共8页Fluid Machinery

基　　金：陕西省高校联合项目(2021GXLH-Z-077)。

摘　　要：为了改善无油润滑摆盘压缩机的活塞环偏磨现象,针对两类典型防自转结构下的摆盘压缩机,构建摆盘处球铰及连杆的运动模型,并以周期运动内连杆平均倾角最小为优化目标,提出基于遗传算法的气缸分布圆半径优化设计方法。研究表明,在锥齿轮防自转结构下,各相位气缸对应的最优分布圆半径相同;在滚子直导槽防自转结构下,各相位气缸对应的最优分布圆半径不同,但可采用均值作为统一的分布圆半径,对各相位连杆平均倾角的影响很小,低于5‰;当摆盘倾角在25°以内时,在两类防自转结构下摆盘压缩机的最优气缸分布圆半径设计值几乎相同。将本优化设计方法应用于多种现有摆盘机构,连杆平均倾角降低约为21.4%~28.6%,活塞侧向力峰值降低约为19.5%~49.6%。本优化设计方法可有效改善活塞环偏磨现象。In order to improve the phenomenon of piston ring eccentric wear in oil-free lubricated wobble plate compressors,for wobble plate compressors under two typical types of anti-rotation structures,the motion models of the ball hinge on wobble plate and the connecting rod were constructed,and the optimization design method of cylinder distribution radius based on genetic algorithm with the optimization objective of minimizing the average tilting angle of the connecting rod in the motion period was proposed.The study shows that the best distribution circle radius of cylinder is the same for each phase under the bevel gear antirotation structure;and the best distribution circle radius corresponding to cylinder in each phase is different for each phase under the roller-straight groove anti-rotation structure,but the mean value can be used as a uniform distribution circle radius,and at this time the effect on the average tilting angle of the connecting rod in each phase is extremely small,less than 5‰;When the tilting angle of the wobble plate is 25°or less,the optimal design values of the cylinder distribution circle radius of the wobble plate compressor under the two types of anti-rotation structures are almost the same.By applying this optimization design method to a variety of existing wobble plate mechanisms,the average tilting angle of the connecting rod is reduced by nearly 21.4%~28.6%,and the peak piston lateral force is reduced by nearly 19.5%~49.6%.This optimization design method can effectively improve the eccentric wear phenomenon of piston ring.

关 键 词：摆盘压缩机 无油润滑 活塞环偏磨 气缸分布圆 运动学分析 优化设计 

分 类 号：TH45[机械工程—机械制造及自动化]