Key Technology Study Of Resource-saving And Environmental Friendly High Performance Water Lubricated Bearings

Water lubrication bearings, using tap water to substitute mineral oil as lubricating medium, making its bearing structure to be simple, and solving a lot of inevitable problems, such as friction, wear, vibration, impact, noise, low reliability, short life etc., specially common bearings have problems such as polluting rivers, lakes and seas because of oil leaking, water lubrication bearings are used widely. Being a secret overseas while emerging late in China, the research on the lubrication mechanism of water lubrication bearings is still imperfect. Nowadays, the calculation examples of the elasto-hydrodynamic lubrication (EHL) of water lubrication bearings are sparse so that there are only a few researches on this field. Base on the key technology study of resource-saving and environmental friendly high performance water lubricated bearings is relate to multi-disciplinary crossed integrated research which includes mechanical design, tribology, surface engineering, material science, lubrication mechanics and etc. The technology of high performance water lubricated bearings which is high-speed, over-loading, vibration insulating, noise abatement, high-reliable, long-life, jumbo size is unresolved difficult problem. Study in the fields of water lubricated bearings'lubrication mechanism, material and etc has significant theory and engineering practicality importance to solve mentioned above problems and to improve application of water lubricated bearings.This work is funded by natural science fund project called'the lubricant mechanism of non-mental material friction pairs on the condition of high-speed heavy load'. Research on modifying water lubrication bearings' material performance is done in the paper. The EHL of water lubrication is caculated. Combine with experiment, the lubrication mechanism is disclosured, and the research of application of water lubrication bearings is done. The research as follows:On the basis of establishing EHL model of water lubrication plastic alloy bearings, This paper discusses the application methods of multigrid algorithm in computing process, and composes programs, also carries on calculation to EHL from one-dimension to two-dimension, runs the dimensionless pressure curve and dimensionless film thickness graph, the lubricant mechanism is disclosured in theory. The mixed friction field, the partly EHL field and the EHL field can be distinguished by...