Concave assembly and support structure for a rotary combine

A rotary combine comprising:

• a rotor having a longitudinal axis of rotation;
• a longitudinally extending frame comprising first and second sides spaced circumferentially around said rotor and at least a first and second rib member extending transversely between said first and second sides of said frame, said first and second rib members longitudinally spaced and defining an opening therebetween;
• and
• at least a first and second concave insert, each of said first and second concave inserts comprising a first and second end spaced circumferentially around said rotor, said first end of said first concave insert removably mounted to said first side of said frame and said first end of said second concave insert removably mounted to said second side of said frame, each of said first and second concave inserts dimensioned to be removed from said first and second sides of said frame respectively in a transverse direction through said opening and away from said rotor.

A method for adjusting the position of a concave assembly relative to a rotor in a rotary combine, said method comprising:

• providing said rotor having a longitudinal axis of rotation;
• providing a support structure disposed adjacent said rotor;
• providing said concave assembly comprising:
• a longitudinally extending frame having first and second sides spaced circumferentially around said rotor, said first and second sides each moveably mounted to said support structure;
• and
• a concave insert removably mounted to said frame, said concave insert outwardly removable from said frame in a direction transverse to said longitudinal axis of said rotor;
• moving at least one of said first and second sides of said frame in a transverse direction relative to said rotor.