| 摘要 |
The invention relates to a planetary gearing for splitting the drive power present at a power input to a first power output and to a second power output at a level of rotational speed that is lowered in magnitude in relation to the drive rotational speed, comprising: a superposition gearing stage, which comprises a first planet carrier, a first planet set carried by the first planet carrier, a first output ring gear, a second output ring gear, and an input sun gear, which is the power input; and a reversing gearing stage, which comprises a first input ring gear, a second input ring gear, a second planet set, and an output sun gear; wherein the superposition gearing stage is designed in such a way that power splitting of the drive power, which is supplied via the input sun gear, to the first planet carrier and to the first output ring gear or the second output ring gear can be effected by means of the superposition gearing stage, the first output ring gear can be coupled to an associated input ring gear of the reversing gearing stage in a switchable manner by means of a first coupling device and the second output ring gear can be coupled to an associated input ring gear of the reversing gearing stage in a switchable manner by means of a second coupling device, and, when the first coupling device is brought into a coupling state, the gearing assumes a first switching state, in which a first rotational-direction relationship results between the power input and the two power outputs, and, when the second coupling device is brought into a coupling state and the first coupling device opens, the gearing assumes a second switching state, in which a second rotational-direction relationship opposite the first rotational-direction relationship results between the power input and the two power outputs. |
