Transmission module for a vehicle
A transmission module 1 has an input 3 which can be connected to a drive source, and an output 5 which can be connected to a differential. The transmission module 1 further has a clutch 7 and an epicyclic gearing 21 with three rotational members, of which a first rotational member 23 is connected to the clutch housing 9 , a second rotational member 25 is connected to a brake 27 and a third rotational member 29 is coupled to the output 5 . A transmission 31 also forms part of the transmission module 1. Between the clutch 7 and the epicyclic gearing 21 is located a partition 45 which is connected to the transmission housing 33 while a wet space 47 is formed between the partition and the transmission housing. The actuation cylinder 15 of the clutch, the operating cylinders 48 of the brake 27 , as well as the oil pipes leading to it are fixed to the partition 45 as a result of which the actuation is arranged as a single module.
1. A transmission module for a vehicle, having an input which can be connected to a drive source, and an output which can be connected to a differential, and comprising:
a clutch comprising a first clutch portion connected to the input, which first clutch portion is formed by a clutch housing, and a second clutch portion which is formed by a clutch plate, as well as means for pressing the two clutch portions together;
an epicyclic gearing comprising at least three rotational members, of which a first rotational member is connected to the first clutch portion and a second rotational member is connected to a brake and a third rotational member is coupled to the output of the transmission module; and
a transmission comprising at least two gear reductions which each form a gear, and comprising a transmission housing and an input shaft and an output shaft, the input shaft being connected to the second clutch portion and a gear wheel positioned on the output shaft forming the output,
wherein the first gear wheel of one of the gears is fixedly attached to the input shaft and the first gear wheel of another gear can then freely rotate around the input shaft and wherein the third rotational member can optionally be coupled to the input shaft or the first gear wheel of the other gear and wherein the transmission module comprises a partition which is connected to the transmission housing while a space is present between the partition and the transmission housing, which space is a substantially or completely wet space and the epicyclic gearing is present in this space.
2. The transmission module of claim 1 , wherein the first rotational member is connected to the clutch housing between the actuation cylinder and the input shaft of the transmission.
3. The transmission module of claim 1 , wherein between the first rotational member and the actuation cylinder there is located a first sealing and between the first rotational member and the input shaft of the transmission there is located a second sealing.
4. The transmission module of claim 1 , wherein the actuation cylinder of the clutch is connected to the partition.
5. The transmission module of claim 1 , wherein the partition is located between the clutch housing and the epicyclic gearing.
6. The transmission module of claim 1 , wherein the transmission module further comprises an oil pipe or air pipe of which an end is connected to the actuation cylinder and which is also present in or on the partition.
7. The transmission module of claim 1 , wherein also the clutch is located in the wet space.
8. The transmission module of claim 1 , wherein the third rotational member is attached to a first gear wheel which is in engagement with a second gear wheel attached to the output shaft of the transmission, the first gear wheel being bearing-mounted on the first rotational member which in turn is bearing-mounted on the input shaft of the transmission.
9. The transmission module of claim 1 , wherein the second gear wheel may be brought into direct engagement with a further gear wheel of the end transmission.
10. The transmission module of claim 1 , wherein the first gear wheel of one of the gears is fixedly attached to the input shaft and the first gear wheel of another gear can freely rotate around the input shaft and may optionally be coupled to the input shaft or to the third rotational member.
11. The transmission module of claim 1 , wherein the third rotational member may optionally be coupled to the first gear wheel of the lowest or of the highest gear of the transmission.
12. The transmission module of claim 11 , wherein the first gear wheel of the lowest gear is fixedly attached to the input shaft and the first gear wheel of the highest gear can freely rotate around the input shaft and may optionally be coupled to the input shaft or to the third rotational member.
13. The transmission module of claim 12 , wherein the third rotational member is connected to the input shaft via a freewheel bearing.
14. The transmission module of claim 1 , wherein the first gear wheel of the lowest gear is fixedly attached to the input shaft and the first gear wheel of the highest gear can freely rotate around the input shaft and in that the third rotational member can optionally be coupled to the input shaft or to the first gear wheel of the highest gear.
15. The transmission module of claim 1 , wherein the second gear wheel of the highest gear is fixedly attached to the output shaft and forms the output.
16. The transmission module of claim 1 , wherein the stationary brake plates of the brake are connected to the partition.
17. The transmission module of claim 1 , wherein the stationary brake plates of the brake may optionally be connected to the partition or to the transmission housing or to the first or third rotational member of the epicyclic gearing.