METHOD OF FABRICATING PIN RETAINING RING FOR INTERNAL GEAR INTERNAL MESHING PLANETARY GEAR STRUCTURE AND HYDRAULIC MOTOR PUMP

摘要

Thereby improving the sliding of the pin in the pin (roller) support hole 113a.;A pinion (roller) support ring 110 having a semicircular pin (roller) support hole in its inner periphery and a pin (roller) 11 rotatably fitted in each pin support hole constitute an internal gear 20, (Roller) support ring of an internal gear mechanism in which the external gears (5a, 5b) are in meshing engagement with the internal gears of the pin support ring base (151) The pin support hole 113a is machined as a whole circular hole with respect to the ring base member, the inner surface of the pin support hole 113a is surface-finished by roller vanishing, and then the inner diameter of the pin support ring is finished Diametrically expanded to obtain a pin support ring having a semi-circular pin support hole. By doing so, it is possible to lubricate the pin support hole and the pin in a state close to fluid lubrication.