微型滚动转子压缩机摩擦损失的分析  

Friction Loss in Miniature Rolling Piston Compressors

作　　者：孙效航 杨启超 史本林 陈沐清 李连生 Sun Xiaohang;Yang Qichao;Shi Benlin;Chen Muqing;Li Liansheng(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao,266061,China)

机构地区：[1]青岛科技大学机电工程学院,青岛266061

出　　处：《制冷学报》2024年第5期63-70,83,共9页Journal of Refrigeration

基　　金：国家自然科学基金(51976095)资助项目。

摘　　要：针对微型滚动转子压缩机,建立滑片、滚动转子等重要部件的运动与受力分析数学模型。根据主要摩擦副摩擦损失的计算式,分析微型滚动转子压缩机主要摩擦副摩擦损失的占比,并与常规空调用滚动转子压缩机的摩擦损失分布情况进行对比,探讨了排气压力和结构参数对压缩机主要摩擦副摩擦损失的影响规律。结果表明:相比于常规空调用滚动转子压缩机,微型滚动转子压缩机的转子自转速度更快,滑片与滑片槽的摩擦损失占比升高了9.5%,主副轴承的摩擦损失占比减小了16.1%。微型滚动转子压缩机排气压力从1070 kPa提高至1470 kPa,总摩擦功耗升高了13.5%。微型滚动转子压缩机滑片厚度从1 mm提高至3 mm,总摩擦功耗仅升高3.1%。微型滚动转子压缩机偏心率从0.08提高至0.18,总摩擦功耗升高了69.7%。微型滚动转子压缩机长径比从0.25提高至0.5,总摩擦功耗降低了10%。微型滚动转子压缩机的偏心率合适的取值范围在0.08~0.18。研究结果可为微型滚动转子压缩机的设计及结构参数优化提供参考。In this study,mathematical models for the motion and force analysis of the important components of miniature rolling piston compressors,such as sliders and rolling rotors,are established.Using the calculation formula for the friction losses of main friction pairs,this study analyzes the proportion of friction losses of the main friction pairs in a miniature rolling piston compressor and compares the distribution of friction losses with that of conventional rolling piston compressors in air conditioners.The effects of discharge pressure and structural parameters on the friction loss of the main friction pairs of the compressor are subsequently investigated.The results show that compared with the conventional rolling piston compressor used in air conditioners,the miniature rolling piston compressor has higher piston rotation speed.Moreover,the proportion of friction loss between the sliding plate and the sliding plate groove increases by 9.5%while the proportion of friction loss between the main and auxiliary bearings decreases by 16.1%.The total friction power consumption of the compressor increases by 13.5%as the discharge pressure increases from 1070 kPa to 1470 kPa.The total friction power consumption increases by 3.1%as the thickness of the sliding plate increases from 1 mm to 3 mm.The eccentricity of the miniature rolling piston compressor increases from 0.08 to 0.18,resulting in a 69.7%rise in total friction power consumption.Meanwhile,the aspect ratio of the miniature rolling piston compressor increases from 0.25 to 0.5,resulting in a 10%reduction in total friction power consumption.The appropriate eccentricity range for miniature rolling rotor compressors is 0.08-0.18.The research results can provide a reference for the design and structural parameter optimization of miniature rolling piston compressors.

关 键 词：微型滚动转子压缩机 运动分析 受力分析 数学模型 摩擦损失 

分 类 号：TB652[一般工业技术—制冷工程] TH455[机械工程—机械制造及自动化]