Study On Friction And Lubrication Of Scroll Compressor

Scroll compressor as a new type displacement compressor, possessing characteristics of high efficiency, small bulk, light weight, low noise, simple structure and working smoothly etc, is widely used in refrigeration and air-conditioning units. Therefore, it is quite important to investigate inherent structure, working process and the whole performance of scroll compressor as well as its matching in the whole refrigeration system. In this paper, The scroll compressor system is recommended, such as its development, its future trend, principles, structures, characters. And study instance of friction and lubrication.Because of above trait, scroll compressor is popular in industry, but potential of scroll compressor is not all discovered, one important reason is more friction assistant in scroll compressor .friction work makes the axis work increased ,and makes the energy ratio reduced. but the study datum of friction is not much about scroll compressor , The thesis made a deep study of the friction characteristics of the scroll compressors.Dynamical character of scroll compressor determines the efficiency. In this thesis, analyzed the air force acting on the orbiting scroll plate; analyzed the force acting on the orbiting scroll plate, oldham ring, crank axis; founded two kinds of structure model of seal strip ,and analyzed the force acting on it.Tribology is a science that study the process and variety of the moving surface each other, so it is the foundation of analyzing the friction and lubrication to learn and study the form of friction surface and contact status .described the contact module of solid surface .Reynolds function is a basic function of lubrication theory . author particular analyzed the friction pair, and made the friction work of the bearing , scroll tooth flank ect.The thesis made the average flux module of tribology. first, considered the Reynolds function which was affected by roughness degree of surface, andanalyzed some lubrication effect brought by roughness degree. second, recommended average Reyond function based on average flux concept.At present, articles fewer about scroll plate edge and tooth top. particularly study the scroll plate edge and tooth top, Author made the scroll plate edge and tooth top circulate function of friction coefficient, friction force , friction work . beside do some circulation, this study result may be used in future design work.