流体机械2024，Vol.52Issue(11)：17-22,6.DOI:10.3969/j.issn.1005-0329.2024.11.003
转子式压缩机泵体压插管力与螺钉拧紧力矩关系的分析与验证
Analysis and verification of the relationship between the insertion force and screw tightening torque of pump body of rotary compressor
摘要
Abstract
In order to improve the product capability and energy efficiency of rotary compressors,a coupled design method for the pressure insertion tube force and screw tightening torque of the rotary compressor pump body was proposed through theoretical analysis,which ensures that the radial clearance design parameters of the pump body do not change during the machining process.First of all,the insertion force is controlled by adjusting the interference fit of 12.7～39.1 μm and the length of 9 mm,so that there is no working medium leakage at the joint and no lateral displacement of the pump body will occur.Secondly,considering that the tightening torque of the cylinder screw is 5 N·m,under the premise of ensuring that the friction force produced by the cylinder screw is sufficient to resist the transverse force produced by the pressure tube insertion and the maximum differential pressure of the gas when the pump body is working,the tightening torque of the screw is the smallest,so that the stress and deformation between the related parts are minimized.The feasibility of the theoretical method was verified through experiments,and the error between the two was within 5%,achieving an improvement in product performance.The research results can provide reference for the optimization design of rotary compressors.关键词
转子式压缩机/压插管力/螺钉拧紧力矩/耦合设计方法Key words
rotary compressor/insertion force/the screw tightening torque/the coupling design method分类
机械制造引用本文复制引用
伦成钢,武小娟,孙民,王澈..转子式压缩机泵体压插管力与螺钉拧紧力矩关系的分析与验证[J].流体机械,2024,52(11):17-22,6.基金项目
国家自然科学基金项目(52406026) （52406026）
