全无油润滑压缩机活塞环的磨损及其对策_韦玉堂.pdf

2010 5 M ay 2010 35 5 LUBRICATION ENGINEERING Vol35 No5 DOI: 103969/jissn0254 0150201005023 * 1 1 2 1 ( 1. 050054; 2. 050081) : , , , SW 25/7 8 000 h : ; ; ; : TH457 : A : 0254 0150 ( 2010) 5 099 4 W earing of the Piston Ring and Its Countermeasures in the Oilless Lubrication Compressor 1 1 2 1 W e i Y uta ng Zhu Y ufeng Zhang J un Y u X inq i ( 1. College ofM echan ical and ElectronicEngineering, HebeiUniversity of Science and Technology, ShijiazhuangHebei 050054, Ch ina; 2. Chem icalEngineering Departm ent, Shijiazhuang VocationalTechnology Institute, ShijiazhuangHebei 050081, China) Abstract: The influences of p iston ping materia,l work temperature, the guiding ring and rad ius length ratio tow ear of the piston ping were discussed respectively based on analysis about thew ear characteristic of piston ping. Thew ear of the piston ping can be reduced and life can be mi proved by using suitab le self lubrication material, lower speed and radius length ratio, setting gu iding rings and reducing work temperature of the piston p ing. The life of the piston ping used in the SW 25/7 oilless lubrication compressor developed as thesemethods ismore than 8 000 h. Keywords: oilless lubrication; piston ring; w earing; compressor , , , , , , 1 , , , * : ; : 2009 11 17 : ( 1964 ), , , , 1