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.

A system and method for conveying agricultural material in a harvester. One harvester includes a rotor which rotates to separate a plant into a first agricultural material and a second agricultural material. A grate is disposed vertically below the rotor and further separates the first and second agricultural materials from one another. A first conveyor receives the first and second agricultural material directly from a trailing end of the rotor and a trailing end of the grate.

A system and method for conveying agricultural material in a harvester. One harvester includes a rotor which rotates to separate a plant into a first agricultural material and a second agricultural material. A grate is disposed vertically below the rotor and further separates the first and second agricultural materials from one another. A first conveyor receives the first and second agricultural material directly from a trailing end of the rotor and a trailing end of the grate.

The disclosure pertains to separably driven rotor portions for a combine harvester and a method for threshing grain using separably-driven rotor portions. The combine harvester is moved through harvest material comprising grain material and material-other-than-grain (MOG). The grain material is separated from the MOG using multiple processing areas. The auger portion may be stopped or rotated at a slower speed with respect to rotation of the threshing portion to simulate the gathering of a large amount of crop material even when small plots are involved, thereby providing the benefits of large-plot harvesting to small-plot applications.

A combine having a mobile frame and a harvesting header for removing crop material from the field and feeding it to a central location. A threshing and separating system separates grain from crop material and a feeder housing receives crop material from the harvesting head and conveys it to the threshing and separating system. A grain tank has a conveyor for transferring separated grain to the grain tank. Either of the harvesting header or the feeder housing has a perforated floor section sufficiently coarse to permit passage of grain to a conveyor beneath the perforated floor section that receives the grain and delivers it to either downstream of the threshing and separating system or the separated grain conveyor.

Separably-driven rotor portions for a combine harvester and a method for threshing grain using separably-driven rotor portions are provided. The combine harvester is moved through harvest material comprising grain material and material-other-than-grain (MOG). The grain material is separated from the MOG using multiple processing areas. The auger portion may be stopped or rotated at a slower speed with respect to rotation of the threshing portion to simulate the gathering of a large amount of crop material even when small plots are involved, thereby providing the benefits of large-plot harvesting to small-plot applications.

An agricultural harvesting machine including a chassis, and a threshing section carried by the chassis. The threshing section includes a rotor, a plurality of frame assemblies adjustably positioned proximate to the rotor, a plurality of concaves and an adjustment mechanism. Each concave is carried by a corresponding frame assembly. The adjustment mechanism is coupled to the frame assemblies. The plurality of frame assemblies are X frame assemblies, with X being 2 or larger. The adjustment mechanism has at least one actuator, with there being Y actuators, with Y being 1 or larger. The adjustment mechanism is configured to adjust each of the X frame assemblies to different positions with Y actuators, where Y is less than X.