Sieve for the grain cleaning apparatus of a combine harvester

摘要

The sieve (90) has a sieve frame (124). Several sieve metal sheets are supported on the frame for rotation around an axis. An air conducting surface (118) protrudes downward beyond the screen frame for the deflection of air flow present below the screen during operation upward to the screen metal sheets. The air conducting surface can move jointly with the screen metal sheets. An air conducting surface is connected to the sieve metal sheets of the sieve metal sheets or is formed integrally with it.