Range shift system for transfer case

摘要

Disclosed is a range shift mechanism in the form of a floating planetary gear assembly for a transfer case. The range shift mechanical according to the present invention can improve power efficiency and generate low noises by suppressing gear rotation in a high range mode of the range shift system.

主权项

1. A range shift mechanism in the form of a floating planetary gear assembly for a transfer case, the range shift mechanism comprising:
an input shaft providing a driving force to a sun gear, the sun gear having a clutch gear provided at one side portion of the sun gear to allow the sun gear to be connected with a carrier and integrated with the input shaft; an output shaft arranged coaxially with the input shaft and rotating independently of the input shaft; a carrier arranged coaxially with the sun gear, directly connected to the output shaft and having a clutch gear provided at one side portion of the carrier to allow the carrier be connected with the sun gear; a plurality of pinion gears radially installed on the carrier and meshed with the sun gear and a floating ring gear; the floating ring gear arranged coaxially with the output shaft, freely rotating on the output shaft in a coaxial direction and having a clutch gear provided at one side portion of the floating ring gear to allow the floating ring gear to be connected with a housing; a sleeve having a clutch gear to be connected with the sun gear, the floating ring gear and a housing clutch gear, axially sliding on the input shaft by a fork and having a circumferential groove to be connected with the fork; and a fork and a guide rail axially moving the sleeve.