A system for detecting a condition indicative of onset of plugging or actual plugging of a discharge of an agricultural combine, utilizing a pressure sensor disposed at a location within the combine spaced from the discharge and operable for sensing an air pressure condition relating to a flow indicative of a reduced crop residue flow condition toward or in the discharge.

A chopper for an agricultural harvester comprises a housing, a rotor, a bank of counter-knives, and an adjuster. The housing comprises a variable geometry outlet floor. The is positioned in an interior region of the housing for rotation therein relative to the housing. The bank of counter-knives is movable relative to the rotor between a first aggressiveness position and a second aggressiveness position to adjust chopping aggressiveness of the chopper. The outlet floor comprises a ramp movable relative to the rotor between a first ramp position and a second ramp position. The adjuster positions the ramp in the first ramp position when the bank of counter-knives is positioned in the first aggressiveness position and positions the ramp in the second ramp position when the bank of counter-knives is positioned in the second aggressiveness position.

Weed seeds are destroyed in the chaff from a combine harvester by repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. Thus the discarded seeds rebound back and forth between the rotor and the stator to provide a plurality of impacts. The seeds are carried axially of the rotor by a controlled airstream so that they move to an axial discharge location where a discharge fan is mounted. The angle of the discharge around the rotor axis can be changed to direct the seeds to the side of the combine away from a straw chopper, towards the guide fins of the tailboard of the chopper, or into the housing of the straw chopper.

A harvesting and sowing integrated compound operation machine, including a combine harvester, a stubble cleaning device, a topsoil loosening device, a fertilization device, a rotary tillage and ditching device, a sowing device, a detection device, a first driving device, a second driving device and a control device, wherein the stubble cleaning device is mounted below a header of the combine harvester; and the topsoil loosening device, the fertilization device, the rotary tillage and ditching device and the sowing device are mounted at a rear of a chassis of the combine harvester.

Weed seeds are destroyed in the chaff from a combine harvester by repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. Thus the discarded seeds rebound back and forth between the rotor and the stator to provide a plurality of impacts. The destructor is mounted on a suitable drive shaft within the straw path and the chaff and weed seed material is carried from the rear end of the sieve to the destructor on the straw chopper by one or more fans driving the material through a transfer duct.

An agricultural combine having an adjustable spreader assembly is provided that includes a spreader, a regulator and a rotary spreader. The spreader is operatively connected to a rear end of the agricultural combine and includes a housing and rotary blades. The housing has an inlet for receiving a flow of residue, and an outlet configured about a lateral side of the housing for discharging the flow of residue. The rotary blades are operatively connected to the housing for rotating therein. The regulator has a proximal end pivotably connected to a lateral side of the spreader about a substantially vertical axis to pivot the regulator in a fore and an aft direction, and a distal end opposite the proximal end. The regulator is in fluid communication with the housing. The rotary spreader is positioned proximate the distal end of the regulator and receives and distributes the flow of residue.

A spreader arrangement for an agricultural harvester includes a pair of spreader discs, at least one cover plate and a windrow chute. The spreader discs are generally horizontally arranged and rotatable in a counter rotating manner. Each cover plate is positioned at a location above a respective spreader disc, and is operable to inhibit a flow of crop material to the respective spreader disc when positioned above the respective spreader disc. The windrow chute has an entrance end positioned below the pair of cover plates and above the pair of spreader discs, whereby crop material is discharged from the top of the cover plates into the windrow chute.

A spreader for harvested crop residue is configured to be attached downstream of a straw chopper of a combine harvester and comprises two adjacently arranged throw blowers with paddles which are able to be set in rotation about one respective axis and in opposing directions to one another, as well as a guide arrangement for predetermining the spreading characteristic of the throw blowers, said guide arrangement having a front tip penetrating the interstice between the throw blowers and two lateral guide elements which follow downstream and which in each case are adjacent to a throw blower and are adapted to the contour thereof. Extension means are connectable or connected to the guide arrangement, for selectively extending the guide device in the axial direction of the throw blowers.

A thresher for a combine harvester has a concave cage and a rotor disposed within the concave cage. The rotor carries material manipulators that extend outward from the rotor toward the cage to manipulate material in the concave cage as the rotor rotates. One or more air nozzles are provided that direct air outward from the rotor and toward the concave cage. A source of forced air circulates air through the one or more air nozzles.

Weed seeds are destroyed in the chaff from a combine harvester by repeated high speed impacts caused by a rotor mounted in one of a pair of side by side housings which accelerate the discarded seeds in a direction centrifugally away from the rotor onto a stator including angularly adjustable stator surfaces around the axis. The weed seed destructor is driven with a straw management system from an output shaft of the combine harvester so that the full power required for both passes through a belt which includes more than four longitudinally extending v-belt ribs and reinforcing cords located in a base band above the ribs at uniformly spaced positions across the width of the belt so that a replacement drive pulley on the output shaft has a width not significantly greater than a conventional output pulley which it replaces.