BEARING ARRANGEMENT OF THE TRANSMISSION SHAFTS OF A TWIN-CLUTCH TRANSMISSION

摘要

The invention relates to a bearing arrangement of the transmission shafts of a twin-clutch transmission (1) which has a central first input shaft (W1) which is connected at the engine side to a first clutch (K1) of a twin-clutch arrangement, a shorter second input shaft (W2) which is embodied as a hollow shaft, is arranged coaxially on the first input shaft (W1) and is connected to a second clutch (K2) of the twin-clutch arrangement, and a main shaft (W3) which is arranged parallel to the two input shafts (W1, W2) and can be selectively connected by means of a plurality of gearwheel stages, which comprise in each case one fixed wheel and one loose wheel, and by means of a shift clutch assigned to the respective loose wheel, to the first input shaft (W1) and to the second input shaft (W2), and which main shaft (W3) is connected by means of a drive output constant (K), which is formed by two fixed wheels, to a drive output shaft (W4) which is arranged parallel to the main shaft (W3), wherein each of the two input shafts (W1, W2) is assigned in each case a plurality of toothed gearwheels, wherein the loose wheels of adjacent gearwheel stages are arranged in each case in pairs on a common transmission shaft and can be alternately shifted by means of two shift clutches which are combined in one shift pack, and wherein the drive output constant (K) is arranged in the region of the transmission-internal end of the second input shaft (W2) between the two pairs of toothed gearwheels. For the purpose of an optimum bearing arrangement of the transmission shafts (W1, W2, W3), a bearing plane (27) is provided which is formed by an inner housing wall (23) of the transmission housing, which lies axially adjacent to the drive output constant (K) and in which a bearing (L3.3) of the main shaft (W3) is arranged in the housing wall (23), a bearing (L1.3) of the first drive input shaft (W1) is arranged in the second drive input shaft (W2), and a bearing (L2.3) of the second drive input shaft (W2) is arranged in the housing wall (23).