A threshing and separating system for an agricultural harvester includes a rotor configured to rotate about a rotor axis, a rotor cage at least partially enclosing the rotor and including a tailings return inlet formed therein and configured to couple to a tailings return elevator and an insert opening formed therein that is at least partially circumferentially aligned with the tailings return inlet relative to the rotor axis, at least one concave coupled to the rotor cage and defining a plurality of concave perforations, and a threshing insert removably coupled to the rotor cage and including at least one mounting opening. The threshing insert at least partially covers the insert opening and is positioned such that material from the tailings return inlet travels past the threshing insert before reaching the concave.

A combine harvester comprises a threshing system and a cleaning system. The cleaning system comprises a crop flow sensing system configured to monitor a lateral distribution of crop on the cleaning system. The threshing system comprises a return pan configured to guide the threshed and separated grain in a forward direction towards the cleaning system. The combine harvester further comprises a hillside compensation system, configured to control the cleaning system in order to adjust the lateral distribution of crop on the cleaning system. The hillside compensation system is further configured to control the return pan separately from the cleaning system and depending on the lateral distribution of crop on the cleaning system.

The present invention comprises a removable cover plate assembly, which may be quickly attached, detached and adjusted to the exterior of a concave grate of a combine harvester in order to adjust the flow characteristics of the concave or separator grate assemblies. The cover plate assembly improves the threshing capability of the rasp bar threshing cylinder while simultaneously capturing additional threshed grain. Moreover, the cover plate assembly of the present invention enables a single set of concave grate assemblies to better harvest a wider variety of crop types.

A cutting longitudinal swaths grain harvesting and baling combine, includes a grain cutting and conveying system, a threshing and separation system, a grain cleaning apparatus, a grain collection and holding system, a straw compression and baling apparatus, a chassis travelling system, and a driving system; when the combine is harvesting grain in fields, the stalks are cut and conveyed to the threshing and separation system by the grain cutting and conveying system; the threshed and separated straw is compressed and baled by the straw compression and baling apparatus; the threshed and separated grain is cleaned by the grain cleaning apparatus; and the cleaned grain is conveyed by the grain collection and holding system to a grain storage bin. The combine can achieve harvesting of grain such as rice and wheat as well as compression and baling of threshed straw, having advantages of high working efficiency, stable performance, a simple process, and being time and labor saving.

A combine harvester includes a threshing device 4 configured to perform a threshing process of threshing reaped grain culm in a threshing chamber 23, in which the threshing chamber 23 includes a threshing cylinder 31 configured to rotate around a front-rear axis X, and an arc-shaped receiving net 32 provided extending along an outer circumferential portion of the threshing cylinder 31, and a top plate 30 covering an upper portion of the threshing chamber 23 is supported detachably along the rotation axis direction of the threshing cylinder 31.

A combine harvester includes a cleaning shoe, which has a chaffer, a sieve below the chaffer, a blower configured to direct air rearward and upward through the sieve and the chaffer, and an air channel assembly defining a plurality of longitudinal air channels positioned to receive air from the blower under a forward end of the sieve and deliver the air to a position rearward along a length of the sieve. The air channels are spaced such that the air channel assembly defines free paths between adjacent air channels such that grain falling downward through the sieve does not obstruct rearward air flow through the air channels.

A combine for harvesting a harvested material that includes a grain, the combine comprising: a threshing chamber comprising a series of threshing and separating apparatuses, sequentially arranged, comprising at least: (i) a straight bar concave (ii) a first round bar concave, and (iii) a second round bar concave. The size of each of the straight bar throats is smaller than a size of the first openings, and the size of each of the first openings is smaller than the size of each of the second openings.

A grain processing apparatus for a combine harvester has a threshing system and a separating system downstream of the threshing system. The separating system includes a rotor and a separator grate. A cover is provided against the separator grate, at a side of the separator grate opposite to the rotor. The cover is a slide fit at one end and has a locking arrangement at the other end, such that the cover can be slid into place then locked in a closed position against the separator grate, or unlocked and removed. When closed, the cover blocks the flow of material to a cleaning system of the combine harvester in order to reduce the loss suffered at the cleaning system.

A cutting longitudinal swaths grain harvesting and baling combine, includes a grain cutting and conveying system, a threshing and separation system, a grain cleaning apparatus, a grain collection and holding system, a straw compression and baling apparatus, a chassis travelling system, and a driving system; when the combine is harvesting grain in fields, the stalks are cut and conveyed to the threshing and separation system by the grain cutting and conveying system; the threshed and separated straw is compressed and baled by the straw compression and baling apparatus; the threshed and separated grain is cleaned by the grain cleaning apparatus; and the cleaned grain is conveyed by the grain collection and holding system to a grain storage bin. The combine can achieve harvesting of grain such as rice and wheat as well as compression and baling of threshed straw, having advantages of high working efficiency, stable performance, a simple process, and being time and labor saving.

A combine having a feeder housing for receiving harvested crop, a separating system for threshing the harvested crop to separate grain from residue, a residue spreader wheel spinning for expelling the residue from the combine, and a controller that controls the combine. The controller is configured to control the residue spreader wheel to continuously oscillate between a first speed less than a nominal speed and a second speed greater than the nominal speed while spreading the residue.