Fan assembly for a cleaning device of a combine harvester

A fan assembly for a cleaning device of a combine harvester, the fan assembly comprising:

• a fan rotor, which can be set into rotation about an axis of rotation by a drive;
• a housing, which accommodates the fan rotor and which has an air inlet opening, through which the fan rotor is insertable into the housing, and at least one air outlet opening, which is tangential to the fan rotor;
• an inlet ring, which extends radially inward from the air inlet opening of the housing;
• a retaining ring fastened to the housing, wherein the retaining ring extends radially outward with respect to the air inlet opening and is equipped with elevations distributed around its circumference;
• wherein the inlet ring is attached to the face of the retaining ring spaced apart from the housing and is provided with elevations, which are complementary to the elevations of the retaining ring and abut the elevations of the retaining ring from the outside;
• wherein the retaining ring and the inlet ring are connected to one another at the elevations by insertable retaining elements extending through coaxial openings in the elevations of the retaining ring and the elevations of the inlet ring;
• and
• wherein the retaining ring does not extend inward over the edge of the air inlet opening of the housing.

A combine harvester comprising:

• a chassis rotatably supporting a plurality of wheels;
• a feeder house assembly configured for receiving crop from a harvesting header;
• a thresher configured for receiving the crop from the feeder house;
• a cleaning device configured for receiving the crop from the thresher, the cleaning device including an upper screen, a lower screen, and a fan assembly configured for moving air across the upper screen and the lower screen, wherein the fan assembly includes:
• a fan rotor, which can be set into rotation about an axis of rotation by a drive;
• a housing, which accommodates the fan rotor and which has an air inlet opening, through which the fan rotor is insertable into the housing, and at least one air outlet opening, which is tangential to the fan rotor;
• an inlet ring, which extends radially inward from the air inlet opening of the housing;
• a retaining ring fastened to the housing, wherein the retaining ring extends radially outward with respect to the air inlet opening and is equipped with elevations distributed around its circumference;
• wherein the inlet ring is attached to the face of the retaining ring spaced apart from the housing and is provided with elevations, which are complementary to the elevations of the retaining ring and abut the elevations of the retaining ring from the outside;
• and
• wherein the retaining ring and the inlet ring are connected to one another at the elevations by insertable retaining elements extending through coaxial openings in the elevations of the retaining ring and the elevations of the inlet ring.