Skibinskyi A. Advancing of process forming working surfaces by the cogwheels working structure of extracentroid epicycloidal transfer of internal gearing

Subject of inquiry - process forming the working profile of the pin-wheel extracentroid epicycloidal transfers of internal gearing (EETIG). Purpose - development of process forming the working profile of pin-wheel EETIG, increase of accuracy of machining, decrease of the cost price of the instrument. Theoretical researches were carried out with use of positions of the theory extracentroid epicycloidal gearings, the theory bending around. Experimental - with use of the theory of a design of experiments with the help of state-of-the-art equipment. The complex assaying of ways edge machining of working profiles of pin-wheels in conditions of a rolling action is executed, it is a lot of and one-tooth instruments, factors which influence accuracy of machining and a way of its increase are defined; conditions of existence of a convex part of a cutting edge of the instrument which ensures machining the working profile of the pin-wheel are theoretically defined. The designed instrument and way for forming working profiles of pin-wheels, can be applied as final machining for sprockets which have surface hardness HRC 28...32. Advantages of the offered way is: increase of accuracy of machining; simplification of manufacturing methods and resharpenings of the instrument. Results of dissertational operation are checked on factory "Hydrosila" (Kirovograd) and are introduced into educational process in KNTU. The sphere of use is a machine industry.