2-SPEED TRANSMISSION

摘要

PURPOSE: A 2-stage transmission improves performance by providing a bearing support structure to prevent the abrasion of a contact part. CONSTITUTION: An input gear (200) integrally rotates with an input shaft which transmits external driving force. A second pinion gear set is engaged with the input gear by being arranged on the circumference of the input gear at equal intervals. A first internal gear (550) has a gear train on the inner periphery and is engaged with a first pinion gear set. An integrated carrier is connected to the first pinion gear set and the second pinion gear set by a carrier pin. First and second multi-plate brakes (600,400) fasten the first internal gear and a second internal gear, respectively. A first bearing set (1300) maintains the rotation track of the end of the second internal gear even when releasing the second internal gear by the second multi-plate brake.