往复式压缩机动平衡分析  

Research on dynamic balance analysis of reciprocating compression

作　　者：杨业豪 陈新杰 葛成伟 张巍 高军 胡鹏翔 YANG Yehao;CHEN Xinjie;GE Chengwei;ZHANG Wei;GAO Jun;HU Pengxiang(Anhui Meizhi Compressor Co.,Ltd.,Hefei 230031)

机构地区：[1]安徽美芝制冷设备有限公司,安徽合肥230031

出　　处：《家电科技》2024年第1期60-65,共6页Journal of Appliance Science & Technology

摘　　要：低频噪声问题是冰箱市场噪声客诉案例中非常常见的一类问题,这类问题的大部分原因是压缩机与冰箱底板的共振,而产生共振的激励源大部分为压缩机运转时的不平衡惯性力,对往复式压缩机进行动平衡优化设计,可以显著降低其运转时的不平衡惯性力,进而改善冰箱系统的低频噪声。基于某种定频往复式压缩机,将其曲轴-连杆-活塞系统简化成曲柄连杆机构,对机构进行动力学分析,推导了不平衡惯性力的理论公式并对往复方向与铭板方向的惯性力特征进行说明。依据不平衡惯性力的理论公式,开发了专用的往复式压缩机动平衡设计软件,该软件可以实现计算不同配平方案的往复惯性力曲线以及计算最优配平质量的功能;针对这一软件,提出了无量纲因数法对软件计算值与试验值进行对比,结果表明两者的误差水平满足工程应用的要求。The low-frequency noise problem is a very common type of complaint in the refrigerator market.The main cause of this problem is the resonance between the compressor and the refrigerator base.The excitation source of this resonance is mostly the unbalanced inertia force generated during the operation of the compressor.By optimizing the dynamic balance of reciprocating compressors,the unbalanced inertia force during operation can be significantly reduced,thereby improving the low-frequency noise of the refrigerator system.Based on a certain fixed-frequency reciprocating compressor,simplifies its crank-connecting rod-piston system into a crank-connecting rod mechanism,conducts dynamic analysis of the mechanism,derives the theoretical formula of unbalanced inertia force,and explains the inertia force characteristics in the reciprocating direction and the nameplate direction.Based on the theoretical formula of unbalanced inertia force,a dedicated reciprocating compressor dynamic balance design software is developed.The software can calculate the reciprocating inertia force curve of different balancing schemes and calculate the optimal balancing mass.For this software,propose a dimensionless factor method to benchmark the calculated values with experimental values,and the results show that the error level between the two meets the requirements of engineering applications.

关 键 词：冰箱系统低频噪声 往复式压缩机 动平衡 无量纲因数 试验对标 

分 类 号：TB652[一般工业技术—制冷工程]