Study On Gear Transmission Based On Error Modeling And Tolerance Accessing

As environment protection and economy energy,wind power is the fastest-growing energy.Study on design and manufacture technology of wind power equipment is concerned by home and abroad researchers.The gear reducer's transmission system bought by DHI Gear Reducer Plant is regarded as the research object.,considered some of the manufacturing error, based on the theories of tolerance model,involute gear precision theory and transmission error theory,establish the involute profile error model,and than with the help of Pro/E set up involute gear entity model,the application of the finite element method,carry out on the gear tooth contact analysis and calculate Gear drive system errors.It can contribute to design gear transmission accurately and determine the reasonable processing for gear multi-production.Firstly,according to computer-aided modeling and the theoretical principles of error processing gear,a new method is proposed to acquire based on small change in the volumn.Secondly,analyze the basic theory of tolerance mathematical model,study the tolerance model of size tolerance for plane.Gear error in the analysis of the distribution,based on the mathematical model,the use of statistical methods in mathematical theory,mathematical software Matlab7.0,three-dimensional modeling software Pro/E,create a profile error of the gear model.Thirdly,introduce the contact finite element theory,based on conjugate engagement theory,establish contact finite element model.Using the procedures of VB finite element model for contact grid refinement,confirm the contact right and the constraints imposed load. Compared with the gear contact stress of different precision model,considering material property,determine the reasonable accuracy of the gear.Finally,according to the principle of gear drive,reflect the main sources of gear transmission error containing inherent error and assemble error into the initiative and driven gears line mesh direction,translate it into the comer error,use statistical methods to calculate the transmission error under certain confidence interval.In this article,proposed a method of gear error modeling.It can contribute to contact analysis and other related issues.