A kit and method of abrading grain provides multiple components to improve the threshing operation within an agricultural combine. The kit includes a unique concave design, open valley rasp bars, and restrictor plates. The method of abrading grain allows threshing operations for large grains such as corn and, also, for small grains such as soybeans. For example, the kit can be used to facilitate construction of a harvesting system that comprises: a drum of a rotary combine; a straight bar concave in a first position, wherein the straight bar concave utilizing intersecting bars, wherein at least some of said intersecting bars including a sharp leading edge, wherein the sharp leading edge abrades harvested materials and separate grain therefrom when the rotary drum rotates; and a plurality of round bar concaves in at least a second and a third position.

The invention provides an adaptive control system and a regulating method for the threshing separation load of the combined harvester and the longitudinal axis. The control system mainly comprises entrainment loss monitoring device, grain breaking rate monitoring device, device for regulating clearance of cutting concave outlet, jitter board load monitoring device, return plate load monitoring device and on-line monitoring and control system. According to the differential signal of the impact force sensor and the inertial force sensor, the cutting flow threshing and separating device is calculated by real-time monitoring of the grain breaking rate, the entrainment loss rate, the tangential groove outlet gap, the cutting drum speed and the longitudinal axis drum speed. And the ratio of the threshing separation load of the cut-off threshing separator and the longitudinal-axial-flow threshing and separating device is adjusted at a reasonable ratio range, to meet the difficult to take off, easy to off and other crops of different harvest requirements, to maintain the best threshing capacity and better adaptability.

The invention provides a longitudinal shunt combine machine for drafting and crushing and self-adaptive spraying device and a control method, including a longitudinal axis flow drafting and drainage device, a stalk miscible shredding device, a wind direction wind speed detecting device, a partition identification device, walker, crushing speed sensor, adjustable width throwing device, adaptive throw real-time control system. The width of the throwing can be adjusted according to the speed of the machine, the speed of the wind, the wind speed, the wind direction, the cut area, the position of the area to be adjusted, so that the full width and width of the stalk residue can be scattered evenly in the field avoid broken pieces of straw flinging to the area to be cut. The longitudinal axis flow drainage guide is installed in the guide plate and the shunt bar, so that the crushing load is relatively uniform, at the same time to solve the longitudinal axis flow threshing roller caused by an excessive row of grass is not smooth, blocking and other issues.

A grain harvesting vehicle is configured to harvest a grain. A chaffer is configured to separate grain from material other than grain (MOG). A grate is positioned rearward of the chaffer. The grate includes a grate panel having an upper surface and a lower surface and an aperture in the grate panel extending between the upper surface and the lower surface. The aperture has a first end nearer the chaffer and a second end opposite the first end. The grate further includes a ramp portion extending above the grate panel from adjacent the first end of the aperture toward the second end of the aperture. A grain sensor has a sensing location positioned at a height below the grate.

An agricultural harvester includes a chassis, a threshing and separating system for separating grain from MOG, and a grain cleaning system for further separating grain from residual MOG. The grain cleaning system has a main grain pan beneath the threshing and separating system with the grain pan having openings in its forward and to selectively receive grain from the forward portion of the threshing and separating system. A component beneath the main grain pan directs flow in parallel to the cleaning system either to a pre-sieve within the cleaning system or to an upper sieve.

An adjustable vane system for use with a rotor cage of a threshing system of an agricultural harvester includes a vane. The vane includes: a generally helically curved inner profile; a surface being an outer profile that is opposite the inner profile and is generally helically curved over a portion of the vane, the outer profile being configured to be positioned closer to the rotor cage than the inner profile; and a flat portion located midway along the outer profile.

Included is a combine having a feeder housing for receiving harvested crop, a separating system for threshing the harvested crop to separate grain from residue, a crop cleaning system including a cleaning fan powered by a fan drive to propel the residue into a residue system of the combine, at least one sensor for detecting an operational parameter of the fan drive, and a controller coupled to the at least one sensor. The controller is configured to determine a load on the fan drive from the detected operational parameter, compare the determined load to a load threshold, and control a speed of the cleaning fan based on the comparison.

A cleaning system for a combine harvester having an adjustable throwing angle is provided. The cleaning system includes a shoe for holding a sieve of the cleaning system, a mounting surface disposed on the shoe, and a rocker arm either movably or removably connected to the mounting surface. The rocker arm is configured to be mounted to the mounting surface at at least two different locations on the mounting surface. Each location resulting in a different throwing angle of the shoe of the cleaning system.

The embodiments herein provide a centrifugal scattering device having a central axle, a sieve positioned below the central axle, a plurality of rotors, each one having a proximal end and distal end where the proximal end of each rotor is attached to the central axle. The device also preferably includes a guide, angled relative to the central axle and attached to the distal end of each rotor so that the guide travels around the central axle and along the sieve when the central axle rotates.

A kit provides multiple components to improve the threshing operation within an agricultural combine. The kit includes a unique concave design, open valley rasp bars, and restrictor plates. Application of the kit components allows more efficient threshing operations for large grains such as corn and, also, for small grains such as soybeans resulting in an increased capture and retention of seed from the threshing operation.