A crop unloader having a frame, an unloader tube mounted to the frame, a driven gear fixed to the unloader tube and having driven teeth extending radially from a first axis, a drive gear mounted to the frame and having drive teeth extending radially from a second axis and extending to mesh at an engagement location with the driven teeth during rotation of the drive gear about the second axis, and a motor operable to rotate the drive gear to rotate the driven gear to move the unloader tube between a first position about the first axis and a second position about the first axis. The teeth form a tapered gap at the engagement location, the tapered gap extending from an upper end to a lower end and being larger at the lower end than at the upper end. An agricultural combine having the crop unloader is also provided.

A crop unloader having a frame, an unloader tube mounted to the frame, a driven gear fixed to the unloader tube and having driven teeth extending radially from a first axis, a drive gear mounted to the frame and having drive teeth extending radially from a second axis and extending to mesh at an engagement location with the driven teeth during rotation of the drive gear about the second axis, and a motor operable to rotate the drive gear to rotate the driven gear to move the unloader tube between a first position about the first axis and a second position about the first axis. The teeth form a tapered gap at the engagement location, the tapered gap extending from an upper end to a lower end and being larger at the lower end than at the upper end. An agricultural combine having the crop unloader is also provided.

A combine harvester tailings return system includes a tailings conveyor and an ejection channel for depositing tailings upstream of a cleaning system. A proximity sensor is mounted to the ejection channel and is configured to sense the height of a layer of tailings during transit through the returns system.

A tailings return system for use in a combine harvester includes a tailings conveyor having an upper part and a lower part. The upper part is hingedly connected to the lower part, allowing the upper part to be folded back against the lower part to create an open space in the combine harvester, facilitating access to other components within the combine harvester.

A tailings return system for use in a combine harvester includes a tailings conveyor having an upper part and a lower part. The upper part is hingedly connected to the lower part, allowing the upper part to be folded back against the lower part to create an open space in the combine harvester, facilitating access to other components within the combine harvester.

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 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.

A method for analyzing the composition of a grain-MOG mixture comprising a kernel fraction and an MOG-fraction. The method includes steps of receiving a grain-MOG mixture, at a thermal excitation location, subjecting a sample volume of the grain-MOG mixture to a thermal excitation using a thermal excitator, generating a thermal image at an imaging location of at least a surface of the sample volume of the grain-MOG mixture that has been subjected to the thermal excitation, processing the thermal image and therewith obtaining data representing the temperature distribution over the thermal image, and relating the temperature distribution to the share of the kernel fraction in the grain-MOG mixture. A device for analyzing the composition of a grain-MOG mixture comprising a kernel fraction and an MOG-fraction is also provided.

A method for analyzing the composition of a grain-MOG mixture comprising a kernel fraction and an MOG-fraction. The method includes steps of receiving a grain-MOG mixture, at a thermal excitation location, subjecting a sample volume of the grain-MOG mixture to a thermal excitation using a thermal excitator, generating a thermal image at an imaging location of at least a surface of the sample volume of the grain-MOG mixture that has been subjected to the thermal excitation, processing the thermal image and therewith obtaining data representing the temperature distribution over the thermal image, and relating the temperature distribution to the share of the kernel fraction in the grain-MOG mixture. A device for analyzing the composition of a grain-MOG mixture comprising a kernel fraction and an MOG-fraction is also provided.

A threshing system of an agricultural harvester includes a rotor cage surrounding a rotor, a threshing space defined between the rotor cage and the rotor, and a transition cone defining an infeed to the rotor cage and the threshing system. A mating interface between the rotor cage and the transition cone is curved in three different dimensions of a Cartesian coordinate system for maximizing the threshing space. As viewed from above the mating interface of the threshing system, a convex portion of the rotor cage is mounted to a concave portion of the transition cone.