无油润滑压缩机中开口型导向环的设计与研究  

Study on Design of the Open-guiding Ring in Oilless Lubrication Compressors

作　　者：朱玉峰[1] 董金华[1] 

机构地区：[1]河北科技大学机械电子工程学院,河北石家庄050054

出　　处：《润滑与密封》2009年第6期49-51,共3页Lubrication Engineering

基　　金：河北省科技支撑计划项目(07212180);河北省科技领军人才创新资金项目(06547003D);河北科技大学杰出青年资助项目

摘　　要：为保证开口型导向环的导向定位和承受侧压力等载荷的作用,对其进行了设计研究。无润滑导向环采用填充PTFE等自润滑材料制造,采用带卸荷槽结构使导向环不承受径向气体力、磨损均匀,运行寿命延长。通过确定径向厚度、轴向宽度、开口热膨胀间隙、径向间隙、轴向间隙等主要参数使其结构合理,给出了设计公式。据此设计出的导向环已应用在SW-2.5/7型全无油润滑压缩机上,运行寿命达8000h以上。The open-guiding ring was designed to ensure its functions of direction position and bearing side pressure and weight. The oilless lubrication-guiding ring was made by self-lubrication materials such as filler PTFE. Unloading slots was designed to make the guiding ring not bear radial force, wear even and run long time. The main structure parameters such as radial thickness, axial width, open heat expansion gap, radial gap, axial gap and ete were determined to make the structure reasonable. The design formulas were given. The open-guiding rings designed as above have been used in a SW-2. 5/ 7 type oilless lubrication compressor,which have run over 8 000 hours.

关 键 词：无油润滑 压缩机 开口型导向环 参数 

分 类 号：TH457[机械工程—机械制造及自动化]