| 摘要 |
FIELD: electricity. ^ SUBSTANCE: unidirectional transmission includes hub cover, built-in motor and speed variation device. Hub cover is connected to possibility of rotation with retaining shafts passing on both of its lateral sides. Built-in motor is located in hub cover and equipped with drive shaft. Speed variation device is installed between drive shaft and hub cover for transmission of drive rotation from built-in motor to hub cover. Speed variation device includes the first and the second sun gears connected to external peripheral surface of drive shaft and located at some distance from each other. At that, the first and the second sun gears interact with free-wheel clutches with possibility of being rotated in opposite directions. The first planetary gear is engaged with the first sun gear; the second planetary gear is engaged with the second sun gear, the first planetary gear and hub cover. ^ EFFECT: simpler design, smaller overall dimensions and enhanced reliability of the device. ^ 4 dwg |
