External spline gear and spline gear transmission device

TLDR: In this paper, an external spline gear and a spline-gear transmission device are presented, where the spline gears are connected integrally by a clamping groove and the clamping ring can support the inner side of the connecting sleeve.

Abstract: The utility model discloses an external spline gear and a spline gear transmission device. The teeth of the external spline gear are straight teeth; each tooth comprises an involute gear tooth section and an involute external spline tooth section both of which are connected integrally; the tooth number z2, the modulus m2, the pressure angle alpha2, the modification coefficient X2 and the tooth dedendum coefficient h*f2 of each involute external spline tooth are as same as the tooth number z1, the modulus m1, the pressure angle alpha1, the modification coefficient X1 and the tooth dedendum coefficient h*f1 of each involute gear tooth; the tooth depth coefficient h*a2 of each involute external spline tooth is smaller than the tooth depth coefficient h*a1 of each involute gear tooth. The spline gear transmission device comprises the external spline gear, a transmission gear and a connecting sleeve; the teeth of the external spline gear are straight teeth; each tooth comprises an involute gear tooth section and an involute external spline tooth section both of which are connected integrally; a clamping groove which is far away from the involute gear tooth section is formed in the involute external spline tooth section; the clamping groove is provided with a clamping ring; the clamping ring can support against the inner side of the connecting sleeve. According to the external spline gear and the spline gear transmission device, axial space can be reduced efficiently, and convenience is brought to machining.