Construction machine

Abstract

A construction machine with a power transfer system, the power transfer system comprising a rotor arranged partly in an upper carriage and partly in a lower carriage of the construction. The rotor shaft is partly arranged within a main bearing of the construction machine and/or in a center of rotation of the construction machine. The power transfer system further comprising at least one stator arranged in the upper carriage and/or in the lower carriage of the construction machine.

What is claimed is: 
     
         1 . A construction machine with a power transfer system, the power transfer system comprising:
 a rotor shaft arranged partly in an upper carriage and partly in a lower carriage of the construction machine, wherein the rotor shaft is partly arranged within a main bearing of the construction machine and/or in a center of rotation of the construction machine; and   at least one stator arranged in the upper carriage and/or in the lower carriage of the construction machine.   
     
     
         2 . The construction machine according to  claim 1 , the power transfer system further comprising at least one output shaft connected to the rotor shaft. 
     
     
         3 . The construction machine according to  claim 2 , wherein a first output shaft is arranged in the upper carriage and a second output shaft is arranged in the lower carriage. 
     
     
         4 . The construction machine according to  claim 2 , wherein at least one consumer, preferably a differential, a hydraulic pump, a coupling and/or a generator, is connected to the at least one output shaft or directly to the rotor shaft. 
     
     
         5 . The construction machine according to  claim 1 , wherein one elongated stator extends in the upper and in the lower carriage. 
     
     
         6 . The construction machine according to  claim 1 , wherein the rotor shaft is a hollow shaft. 
     
     
         7 . The construction machine according to  claim 6 , wherein at least one cable, preferably at least one electrical cable or at least one optical fiber arrangement is arranged in the hollow shaft. 
     
     
         8 . The construction machine according to  claim 6 , wherein the hollow shaft is able and arranged to be used as light guide. 
     
     
         9 . The construction machine according to  claim 1 , comprising exactly one electric motor, preferably coupled to the power transfer system or comprising the rotor shaft. 
     
     
         10 . The construction machine according to  claim 9 , wherein the exactly one electric motor is arranged in the upper carriage or in the lower carriage. 
     
     
         11 . The construction machine according to  claim 9 , wherein the exactly one electric motor is a propulsion unit of the construction machine, preferably the sole propulsion unit. 
     
     
         12 . The construction machine according to  claim 1 , wherein the construction machine is an excavator or a telehandler, or a forestry machine.