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Non-standard sprocket gear system movement precision of reliability analysis
Time:2016/3/7 Hits:2815

Non-standard sprocket random factors in order to determine the probability of gear system meet the requirement of precision, based on the theory of the gear movement precision and saddle point force of non-standard sprocket nearly technology, an involute cylindrical gear system movement reliability analysis of precision non-standard sprocket gear system under random factors influence the probability of meet the precision requirement. Often encounter in the gear processing non-standard sprocket to non-standard module gear machining, gear in the processing of this mark is not much difficult non-standard sprocket, according to the requirements of the non-standard gear manufacturing of non-standard cutting tools can be non-standard chain wheel processing, when you get into trouble, only to find that, production workshop, double meshing gear hob after part of the test, the necessity of the comprehensive non-standard sprocket gear radial error tolerance of non-standard sprocket gear radial composite error detection. Non-standard sprocket radial composite error mainly reflects the eccentric gear ring china-africa standard sprocket heart around the axis of reference of the entire history of the ring gear tooth profile of the radial position of the biggest mistakes, it's a major error affect the accuracy of movement in non-standard sprocket, radial composite error "Fi" mainly depends on the radial position of the adjacent two non-standard sprocket tooth profile error and tooth profile error analysis of the shape error of gear machining non-standard gear grinding, shaft radial runout and assembly of eccentric error motion of the gear system, the influence of the gear system is deduced from the motion error of the mean of non-standard sprocket, variance and function expression of third-order and fourth-order moment, the method of using saddle point approximation fitting gear system movement by non-standard sprocket differential probability density function and probability distribution function. Combined with the national standard gear system movement reliability analysis model of precision. The numerical examples show that this method has higher precision and efficiency.

 

 
 

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