PLANETARY CARRIER

摘要

A planetary carrier where the second pinion gears are disposed so as to be at least partially located in the spaces between the adjacent bridge portions, an outer peripheral surface of each of the bridge portions is provided with a spline onto which a friction engagement plate constituting a friction engagement element is fitted, an inner peripheral surface of each of the bridge portions is provided with a pair of wall portions that extend in the axial direction along side edges on both sides of each of the bridge portions and protrude radially inward, and each of the bridge portions is provided with a plurality of oil holes through which an inside and an outside of each of the bridge portions communicate with each other.

主权项

1. A planetary carrier of a planetary gear including a plurality of first pinion gears and a plurality of second pinion gears having longer axial lengths than those of the first pinion gears, the planetary carrier comprising:
a carrier body including:
a plurality of first shaft support portions that each support one end of a first pinion shaft inserted into each of the first pinion gears, anda plurality of second shaft support portions that are arranged alternately with the first shaft support portions along a circumferential direction and each support one end of a second pinion shaft inserted into each of the second pinion gears; a carrier cover that supports the other end of the first pinion shaft and the other end of the second pinion shaft; and a plurality of bridge portions that extend in an axial direction of the first and the second pinion shafts between the first shaft support portions and the carrier cover, and are arranged side by side in the circumferential direction with spaces between the bridge portions, wherein
the second pinion gears are disposed so as to be at least partially located in the spaces between the adjacent bridge portions,an outer peripheral surface of each of the bridge portions is provided with a spline onto which a friction engagement plate constituting a friction engagement element is fitted,an inner peripheral surface of each of the bridge portions is provided with a pair of wall portions that extend in the axial direction along side edges on both sides of each of the bridge portions and protrude radially inward, andeach of the bridge portions is provided with a plurality of oil holes through which an inside and an outside of each of the bridge portions communicate with each other.