| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the efficiency of transmission of the drive force of the motor by reducing the loss torque in the oil seal part, and to extend the miles on a charge. <P>SOLUTION: In a reduction differential gear with an electric vehicle motor which has an electric motor 11, a reduction differential gear section 14, and a casing 15 housing them, in which a deceleration mechanism 12 of the reduction differential gear section 14 has an input shaft 22 integrated with a motor output shaft 17 of the electric motor 11, a differential mechanism 13 inputs the deceleration output of the deceleration mechanism 12 into itself, has a pair of output shafts 35, 36 coaxially facing each other, and is constituted so as to distribute and output the differential rotation to the pair of the output shafts 35, 36, and oil seals 60a, 60b are interposed in parts where the pair of shafts 35, 36 pass through both the ends of the casing 15, a through hole 30 through which lubricating oil comes in and goes out is arranged in a partition wall 44 of the casing 15 of arranged between the respective housing sections of the electric motor 11 and the reduction differential gear section 14. <P>COPYRIGHT: (C)2012,JPO&INPIT |
