Patent ID: 8734289

Claim:
A power split gearbox comprising: a driveshaft ( 10 ) having a drive toothing ( 13 ) and being rotatably mounted for driving said gear box in a torque-transmitting manner; a plurality of identically shaped first planet shafts ( 20 ) rotatably mounted around said driveshaft ( 10 ), said first planet shafts comprising a torque transmitting first planet toothing ( 23 ) and a torque transmitting second planet toothing ( 25 ) axially offset relative to said first planet toothing, said first planet toothing ( 23 ) being in mesh with the teeth of said drive toothing ( 13 ); a plurality of identically shaped second planet shafts ( 30 ) rotatably mounted radially outside around said first planet shafts ( 20 ), said second planet shafts ( 30 ) comprising a torque transmitting third planet toothing ( 33 ) and a torque transmitting fourth planet toothing ( 35 ) axially offset relative to said third planet toothing ( 33 ), two of said third planet toothings ( 33 ) being in mesh with the teeth of said second planet toothings ( 25 ); and a central wheel ( 40 ) rotatably mounted on the radially inner side of said second planet shafts ( 30 ) coaxial to said driveshaft ( 10 ) and in mesh with said fourth planet toothings, said central wheel constructed so as to provide an output of said power split gearbox, wherein said central wheel ( 40 ) is supported to be displaceable axially, wherein said fourth planet toothings ( 35 ) and said central wheel ( 40 ) each comprise a spur toothing ( 35 , 43 ).