Hyundai HX145LCR Manual page 147

6) 6) REDUCTION GEAR REDUCTION GEAR
Reduction unit slows down the rotating speed of motor and converts motor torque to strong rotating
force.
This reduction unit utilizes two stages, planetary reduction system.
Planetary reduction system consists of sun gear, planetary gears, (planetary) carriers, and ring
gear.
When the sun gear (s) is driven through input shaft, planetary pinions (b), rotating on their center,
also move, meshing with fixed ring gear (a), around sun gear (s).
This movement is transferred to carrier (k) and deliver the torque.
This mechanism is called planetary gear mechanism.
Fixed ring gear(a)
Planetary pinions(b)
Input
Sun gear(s)
When the sun gear S1
and revolution of gear b b transfers the rotation of carrier K1
planetary action between gear S2
This time, because carrier K2
rotates to drive sprocket.
Carrier(k)
Output
29072TM10
S1 is driven by input shaft, planetary action occurs among gears S1
S2, a a and d d .
K2 is fixed to frame, gear d d drives ring gear a a and then ring gear a a
b
S1
K1 to second sun gear S2
a
d
S2
K1
K2
2-95
Ring gear(a)
Carrier(k)
Sun gear(s)
Planetary pinions(b)
29072TM11
S1, a a and b b
S2, and also evokes
29072TM12