The New Process Method Of Chevron Gear Of ZY3NB-1300 Drilling Pump

This item is put forward in order to suit the home and abroad to the present situation that supply falls short of demand of well drilling pump . The text is mainly research the chevron gear of ZY3NB-1300 drilling pump, and on the foundation of reference the advanced manufacture technique of home and abroad , research the new process method of narrow relief groove chevron gear. It is a new process method based on the real circumstances of our company.First, I Carry on the overall analysis on gear process machine , design analysiss , tool kind and the application scope , the way of raising surface quality , process unit design and so on. Though the comparative of serveal process methods,I decided the overall technological process and process unit of the narrow relief groove chevron gear and make it keeping higher advanced nature , science and reasonable .Fully optimize the technology scheme as far as possible , and shortens the production cycle when ensuring the product quality , and reduces the cost of production.Through the analysis, I definited the process difficult point of chevron gear : Tooth face hardness is HB285-320; The relief groove is very narrow only for 8mm. By this, I defined using finger gear milling cutter on Y31200B gear-nobbing machine to processing.I also definited the research directions, it is: the shape and structure of finger gear milling cutter tool material selection, cutting usage selection, cutting liquid selection and etc.Then, from the computation of the active profile of the finger gear milling cutter, the shape and structure of finger gear milling cutter, performance of tool material should be had, various tool materialperformance analysiss , the matching of tool material and workpiece material , the selection of cutting usage such as a_p, f, V, kind of the cutting liquid and selection of cutting liquid and etc. The text have a detailed analysis . Finally, I accomplished all factors that process needing.Finally , by the way of factory reaches application, it indicated that this new process method of the narrow relief groove chevron gear is real and effective. The method of control is simply and the control accuracy has also achieved the drawing requirement, and the error is in the allowable limit , It has gained better process effecto At the same time , this process method is suitable equally for the narrow relief groove chevron gear of other model drilling pump.