Disclosed is an electric vehicle transmission (6″) comprising a drive input shaft (11), a drive output shaft (13), a first planetary gearset (15), and a second planetary gearset (16). The drive input shaft (11) is provided for connection to an electric machine (7), where each of the first planetary gearset (15) and the second planetary gearset (16) includes a first element (17, 18), a second element (19, 20) and a third element (21, 22), respectively. A first shifting element (A) and a second shifting element (B′) are provided, by the selective actuation of which the drive input shaft (11) can be connected to the drive output shaft (13) by means of the planetary gearsets (15, 16) by engaging a gear. Also disclosed is a drive module (2″) with such an electric vehicle transmission (6″) and a method for operating an electric vehicle transmission (6″).

Disclosed is an electric vehicle transmission (6″) comprising a drive input shaft (11), a drive output shaft (13), a first planetary gearset (15), and a second planetary gearset (16). The drive input shaft (11) is provided for connection to an electric machine (7), where each of the first planetary gearset (15) and the second planetary gearset (16) includes a first element (17, 18), a second element (19, 20) and a third element (21, 22), respectively. A first shifting element (A) and a second shifting element (B′) are provided, by the selective actuation of which the drive input shaft (11) can be connected to the drive output shaft (13) by means of the planetary gearsets (15, 16) by engaging a gear. Also disclosed is a drive module (2″) with such an electric vehicle transmission (6″) and a method for operating an electric vehicle transmission (6″).

A wind turbine transmission including a first planetary stage and a second planetary stage, wherein a sun gear of the first planetary stage and a planet carrier of the second planetary stage are interconnected for conjoint rotation by means of a spline joint, the sun gear integrally forms an internal toothing, and a first web of the planet carrier or a sun shaft integrally connected to the first web integrally forms an external toothing of the spline joint.

A transmission assembly includes a common ring gear assembly, a first sun gear, a first planet carrier, a second sun gear and a second planet carrier. A set of planet gears of each one of the first and second planet carriers meshing with the common ring gear assembly. The set of planet gears of the first planet carrier meshing with the first sun gear and the set of planet gears of the second planet carrier meshing with the second sun gear. The transmission assembly further includes a transmission housing. The second sun gear is adapted to be connected to a transmission input shaft; the common ring gear assembly is adapted to be connected to a transmission output shaft, and the second planet carrier and the first sun gear are operatively connected to each other.

A transmission assembly includes a common ring gear assembly, a first sun gear, a first planet carrier, a second sun gear and a second planet carrier. A set of planet gears of each one of the first and second planet carriers meshing with the common ring gear assembly. The set of planet gears of the first planet carrier meshing with the first sun gear and the set of planet gears of the second planet carrier meshing with the second sun gear. The transmission assembly further includes a transmission housing. The second sun gear is adapted to be connected to a transmission input shaft; the common ring gear assembly is adapted to be connected to a transmission output shaft, and the second planet carrier and the first sun gear are operatively connected to each other.

A speed-change mechanism includes an output shaft on which a transmission module and a speed step-up module are mounted. The transmission module includes a driving roller that drives the output shaft in a single direction. The speed step-up module includes a connecting gear and a speed step-up gear that are rotatably and fixedly mounted to the output shaft, respectively, and a planet speed-change wheel assembly arranged therebetween. The speed step-up module includes an arrestor assembly. At a low speed, the planet speed-change wheel assembly is idling as being set in an orbiting motion and input power is suppled through the driving roller driving the output shaft in the single direction; and at a high speed, the arrestor assembly stops the orbiting motion of the planet speed-change wheel assembly to allow the speed-change gear of the planet speed-change wheel assembly to switch to a spinning motion to step up the speed.

A speed-change mechanism includes an output shaft on which a transmission module and a speed step-up module are mounted. The transmission module includes a driving roller that drives the output shaft in a single direction. The speed step-up module includes a connecting gear and a speed step-up gear that are rotatably and fixedly mounted to the output shaft, respectively, and a planet speed-change wheel assembly arranged therebetween. The speed step-up module includes an arrestor assembly. At a low speed, the planet speed-change wheel assembly is idling as being set in an orbiting motion and input power is suppled through the driving roller driving the output shaft in the single direction; and at a high speed, the arrestor assembly stops the orbiting motion of the planet speed-change wheel assembly to allow the speed-change gear of the planet speed-change wheel assembly to switch to a spinning motion to step up the speed.

A speed-change mechanism includes an output shaft on which a transmission module and a speed step-up module are mounted. The transmission module includes a driving roller that drives the output shaft in a single direction. The speed step-up module includes a connecting gear and a speed step-up gear that are rotatably and fixedly mounted to the output shaft, respectively, and a planet speed-change wheel assembly arranged therebetween. The speed step-up module includes an arrestor assembly. At a low speed, the planet speed-change wheel assembly is idling as being set in an orbiting motion and input power is suppled through the driving roller driving the output shaft in the single direction; and at a high speed, the arrestor assembly stops the orbiting motion of the planet speed-change wheel assembly to allow the speed-change gear of the planet speed-change wheel assembly to switch to a spinning motion to step up the speed.

A transmission for a drive assembly for driving a working machine at a variable speed of rotation having: a first planet gear set to which a first drive unit can be coupled and a second planet gear set which the working machine can be coupled. The first planet gear set and the second planet gear set each having planet gears which are arranged on at least two common planet shafts which are mounted in a planet carrier. The planet carrier is rotatably mounted in a transmission housing and can be driven by a second drive unit. A torque on the planet carrier can be braced against the transmission housing via a brake or locking mechanism or clutch.

A transmission for a drive assembly for driving a working machine at a variable speed of rotation having: a first planet gear set to which a first drive unit can be coupled and a second planet gear set which the working machine can be coupled. The first planet gear set and the second planet gear set each having planet gears which are arranged on at least two common planet shafts which are mounted in a planet carrier. The planet carrier is rotatably mounted in a transmission housing and can be driven by a second drive unit. A torque on the planet carrier can be braced against the transmission housing via a brake or locking mechanism or clutch.