The winner of the Innovation Award in gold is: 

Show larger version

 

New Holland - a brand of CNH
(Hall 3, Stand A48)

Overall concept of CR twin axial rotor combine harvester

The further development of the technically possible threshing performance of combine harvesters is increasingly being limited by their size, weight and dimensions.

This particularly applies to the widening of the threshing channel, the most effective design measure that would, however, directly impact the width of the machine, which is in turn already encountering the statutory transport width limits. The fundamental, regressive nature of separating functions is one argument against simply extending the threshing and separating sections. In addition, increased drive outputs and accordingly dimensioned drive technologies as well as threshing and separating tools are causing the legally defined axle loads to be exceeded.

The overall concept of the new CR twin axial rotor combine harvester from New Holland has therefore been designed for a maximum power density while complying with all restrictions. The core element of the new CR combine harvester is the drive technology with an engine that is mounted longitudinally according to the rotors’ angle of inclination. The centrally located split-power gearbox is used to drive rotors and harvesting headers with an intake chain in a straight line or via a propeller shaft. The left rotor serves as a counter shaft for the feed drum. The propeller shaft is located on the right-hand side of the chassis above the level of the rotor housing. Consequently, there are no drives on either side of the chassis between the chassis and the running gear, as a result of which the width of the chassis has increased considerably. The resulting space has been used to widen the threshing channel and therefore to increase the installed technical output of the combine harvester.

To eliminate any blockages, a software-controlled automatic system not only performs the otherwise usual back and forth movements to loosen the blockage, but also slews the belt tensioner to the respective tensioning side of the feed drum belt, which leads to particularly precise transfer of the rotary movement. The patented cleaning system has also been made 13 percent wider and grain elevator loading has been optimised, while pressure sensor-supported control technology measures the ram pressure and therefore harvested crop distribution separately on the front and rear upper sieve. Bare areas resulting from uneven distribution of the mix of grain and non-grain constituents are compensated through lateral shaking, as a result of which the system not only ensures consistent distribution of the material on the upper sieves on the flat and also on lateral slopes, but is also able for the first time to solve the basic lateral distribution problem typical of axial rotor combine harvesters. The straw chopping and distribution system is equipped with camera-based control technology, which increases the combine harvester’s energy efficiency while the machine’s weight has remained virtually unchanged at the same time thanks to weight-optimised designs.

With the new CR twin axial rotor combine harvester, New Holland is advancing into a new performance dimension in twin axial rotor combine harvesters using the longitudinal flow principle.