AGRICULTURAL FERTILISING MACHINE WITH VARIABLE TRACK GAGE Russian patent published in 2013 - IPC A01C23/00 B62D21/14 B60B35/10 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural fertilising machines. The agricultural fertilising machine comprises a pair of wheels, each of which comprises a respective device 18 for fixing the wheel, having a bearing element 19 and a drum 20 mounted on it with the ability to rotate, driven in rotation by the hydrostatic motor 21 mounted on corresponding bearing element 19. Each device 18 for fixing the wheel is mounted on the corresponding support structure 22 of the wheel by the upper lever 23 and lower lever 24 forming the corner module. The support structure 22 of the wheel of each corner module is a cast unit. Each support structure of the wheel is mounted on the chassis by means of transversely extending supporting shaft which is movably fixed for axial movement in the support unit.

EFFECT: in the agricultural machine, the change of track gage is provided by the simple and efficient manner due to the transverse separation of wheels with minimal sliding friction.

14 cl, 15 dwg