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微型滚动转子式压缩机摩擦损失的分析
孙效航, 杨启超, 史本林, 陈沐清, 李连生
0
(青岛科技大学机电工程学院 青岛 266061)
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公式,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:较常规空调用滚动转子压缩机来言,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1070kPa提高到1470kPa,其总摩擦功耗升高了13.5%。微型滚动转子压缩机滑片厚度从1mm提高到3mm,其总摩擦功耗仅升高3.1%。微型滚动转子压缩机偏心率从0.08提高到0.18,其总摩擦功耗升高了69.7%。微型滚动转子压缩机长径比从0.25提高到0.5,其总摩擦功耗降低了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。
关键词:  微型滚动转子压缩机  运动分析  受力分析  数学模型  滑片  摩擦损失
DOI:
投稿时间:2023-05-27  修订日期:2023-08-24   录用日期:2023-10-07
基金项目:国家自然科学基金(51976095)资助项目。
Analysis of Friction Loss in miniature rolling piston compressor
Abstract:
For miniature rolling piston compressor, mathematical models for the motion and force analysis of important components such as sliders and rolling rotors are established. Based on the calculation formula for the friction losses of the main friction pairs, analyze the proportion of the friction losses of the main friction pairs in the miniature rolling piston compressor, and compare the distribution of friction losses with conventional rolling piston compressor for air conditioning. The influence of discharge pressure and structural parameters on the friction loss of the main friction pairs of the compressor was investigated. The results show that compared to the miniature rolling piston compressor used in air conditioning, the piston rotation speed of the miniature rolling piston compressor is faster, and 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 increased by 13.5% as the discharge pressure increased from 1070kPa to 1470kPa. The total friction power consumption increased by 3.1% as the thickness of the sliding plate increased from 1mm to 3mm. The eccentricity of the miniature rolling piston compressor increased from 0.08 to 0.18, resulting in a 69.7% increase in total friction power consumption. The aspect ratio of the miniature rolling piston compressor has been increased from 0.25 to 0.5, resulting in a 10% reduction in total friction power consumption. The appropriate range of eccentricity for miniature rolling rotor compressors is 0.08~0.18. The research results can provide reference for the design and structural parameters optimization of miniature rolling piston compressor.
Key words:  Miniature rolling piston compressor  Kinematic analysis  Dynamic analysis  Mathematical model  Vane  Friction loss

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