The Reseach Of Elasticity Creep Between Rail And Ring In Double-Disc Involte Instrument

Along with the development of technology, the manufacture technology of ultraprecise gear widely applied in industry and military is growing fast, and its measurement of all deviations and test of accuracy are the important part to improve and assure the accuracy of manufacture and transmission. The accuracy of manufacture and transmission of gear is very important to the accuracy of the gear's transmission structure. Therefore, it is important further improve the capacity of measurement of gear's all deviations to the manufacture of ultraprecise gear. Profile deviation, profile form deviation and profile slope deviation are the most examine items of the accuracy measurement of gear.The Double-Disc Involute Instrument is accord with the principle of mechanical unfold. Because of the error factors of affect standard involute in checking the profile of gear. The problem of elasticity creep just belong to the error factor of affect standard involute. It is the practical problem exist in the Double-Disc Involute Instrument. This paper presents theory calculate formula and numerical calculation in same materials and different materials institution.To research and study the elasticity creep in same materials of wheels. Firstly, analysis the contact zone and contact distortion of friction transmission, attain the calculate formula of elasticity creep rate in same materials, and research the influence of the elasticity creep error to the profile deviation of involute.Studying the error of elasticity creep of wheels created in different materials, and present the calculate formula, at the same time draw the graph of wheel creep of different materials, and research the influence of the elasticity creep error to the profile deviation of involute.Through the theory calculate, the follow conclusion can be obtained. It can be ignore that the error effect created by the elasticity creep. And it should be attach importance to the effect of the error of elasticity creep to the inspection of involute profile deviation.