A threshing system including a rotor cage with a plurality of slots therein, a first bank of vanes and a second bank of vanes arranged within the cage. An adjustable vane control system is coupled to the rotor cage and the banks of vanes. A first and second member are respectively pivotally coupled the vanes in the first bank and the vanes of the second bank through corresponding slots. Linkages couple an arm to the members. The first and second members each having a range of travel defined by the slots. The members each having a surface facing the outer surface of the rotor cage, the surfaces of the first member and the second member each remain tangent to the outer surface of the rotor cage as the first member and the second member are moved within their range of travel.

A rotor and cage assembly includes a skeleton of curved spaced-apart side members affixed to laterally extending upper and lower spaced-apart members therebetween and surrounding the rotor. One of the curved spaced-apartside members is terminated with curved fingers. Three concave inserts insert laterally into the skeleton spanning 270 around the rotor. One of the concave inserts carries straight fingers that interlace between the skeleton side member curved fingers. A control assembly of plates having arcuate slots placed at 3 of the pivots of the skeleton assembly, control bars connected to the skeleton pivots, and an actuator connect to the control bars at one end effect arcuate rotation of the control bars resulting in the synchronized rotation of the arcuate slotted plates so that the interlaced straight fingers move closer together or farther apart with the fixed skeleton assembly curved fingers for different types of grain.

A rotor and cage assembly includes a skeleton of curved spaced-apart side members affixed to laterally extending upper and lower spaced-apart members therebetween and surrounding the rotor. One of the curved spaced-apartside members is terminated with curved fingers. Three concave inserts insert laterally into the skeleton spanning 270 around the rotor. One of the concave inserts carries straight fingers that interlace between the skeleton side member curved fingers. A control assembly of plates having arcuate slots placed at 3 of the pivots of the skeleton assembly, control bars connected to the skeleton pivots, and an actuator connect to the control bars at one end effect arcuate rotation of the control bars resulting in the synchronized rotation of the arcuate slotted plates so that the interlaced straight fingers move closer together or farther apart with the fixed skeleton assembly curved fingers for different types of grain.

An agricultural harvesting machine includes a chassis and a threshing system carried by the chassis. The threshing system includes a rotor, a frame assembly and at least one concave carried by the frame assembly. A latch mechanism supports and secures the concave relative to the frame assembly and includes a concave support bar, a clamping bar and a quick-connect, over center latch for tool-less operation.

An agricultural harvesting machine includes a chassis and a threshing system carried by the chassis. The threshing system includes a rotor, a frame assembly and at least one concave carried by the frame assembly. A latch mechanism supports and secures the concave relative to the frame assembly and includes a concave support bar, a clamping bar and a quick-connect, over center latch for tool-less operation.

Disclosed is a rotor and cage assembly that includes a skeleton of curved spaced-apart side members affixed to laterally extending upper and lower spaced-apart members therebetween and surrounding the rotor. One of the curved spaced-apart side members is terminated with curved fingers. Three concave inserts insert laterally into the skeleton spanning 270 around the rotor. One of the concave inserts carries straight fingers that interlace between the skeleton side member curved fingers. A control assembly of plates having arcuate slots placed at 3 of the pivots of the skeleton assembly, control bars connected to the skeleton pivots, and an actuator connect to the control bars at one end effect arcuate rotation of the control bars resulting in the synchronized rotation of the arcuate slotted plates so that the interlaced straight fingers move closer together or farther apart with the fixed skeleton assembly curved fingers for different types of grain.

An apparatus that controls the position of a component of a mechanical system, such as an adjustable concave in a combine harvester, while at the same time exhibiting a safety function that is reversible without requiring a long downtime of the combine. The apparatus includes a control part and an auxiliary part, both pivotable about the same axis, and a force transmission part to maintain these two parts in an assembled state by a spring force, as long as the component is subjected to forces below a given limit. When the forces exceed the limit, the auxiliary part and the control part are configured to become separated in such a manner that they can be reassembled by the intervention of an actuator. The safety function of the apparatus resembles the operation of a shear bolt.

An apparatus that controls the position of a component of a mechanical system, such as an adjustable concave in a combine harvester, while at the same time exhibiting a safety function that is reversible without requiring a long downtime of the combine. The apparatus includes a control part and an auxiliary part, both pivotable about the same axis, and a force transmission part to maintain these two parts in an assembled state by a spring force, as long as the component is subjected to forces below a given limit. When the forces exceed the limit, the auxiliary part and the control part are configured to become separated in such a manner that they can be reassembled by the intervention of an actuator. The safety function of the apparatus resembles the operation of a shear bolt.

An axial flow regulation system for grain harvesting machines for regulation of the distance between the threshing cylinder or rotor and the concave portions, and the axial displacement of the material harvested during threshing.

An axial flow regulation system for grain harvesting machines for regulation of the distance between the threshing cylinder or rotor and the concave portions, and the axial displacement of the material harvested during threshing.