In one aspect, a system for adjusting harvesting implement orientation of an agricultural harvester may include a harvesting implement configured to be coupled to the agricultural harvester in a manner that permits a fore/aft tilt angle defined between a longitudinal axis of the harvesting implement and a field surface to be adjusted. The system may also include a sensor configured to detect a parameter indicative of a distance between the harvesting implement and the field surface. Furthermore, the system may include a controller configured to receive an input associated with a predetermined characteristic of the harvesting implement. The controller may also be configured to monitor the distance between the harvesting implement and the field surface based on data received from the sensor and initiate adjustments of the fore/aft tilt angle based on the received input and the monitored distance.

The invention relates to a cutting system (1) for a combine harvester (2), having a support frame (3) for a cutting table (4), which has, on the cutting side, a cutting bar (6) which is fastened in an articulated manner to the support frame (3), is flexible transversely to the cutting direction (5) and can be adjusted in height with respect to the support frame (3) by means of a plurality of axle levers (7) which are arranged distributed over the width of the cutting system and engage at one end on the cutting bar (6) and at the other end on the support frame (3), wherein actuators (8) and thus the axle levers (7) with the cutting bar (6) can be actuated by a controller (12). In order to create advantageous cutting conditions, it is proposed that the cutting bar (6) is assigned a plurality of sensors (11) which are arranged in a distributed manner over the width of the cutting system, record the ground clearance of the cutting bar (6) and are provided in the cutting direction (5) in front of each axle lever (7) on the cutting bar (6), wherein the sensors (11) are skids (13) arranged on the bottom side of the cutting bar (6) for measuring the ground contact pressure of the respective skid (13) or for measuring the distance between the skid (13) and the cutting bar (6).

A harvesting machine includes: a machine main body 1; a harvesting unit 15 that is provided forward of the machine main body 1 and is capable of swinging upward and downward relative to the machine main body 1; a height detection unit that is capable of detecting a height position H at which the harvesting unit 15 is located; and an obstacle detection unit that is capable of detecting an obstacle that is located forward thereof in a travel direction. The obstacle detection unit includes: a first sensor 21 and a second sensor 22 that are provided at different positions in a vertical direction, and output detection information regarding a detection area that is located forward thereof in the travel direction; a selection unit that selects at least either the detection information from the first sensor 21 or the detection information from the second sensor 22 based on the height position H of the harvesting unit 15; and a determination unit that determines the obstacle based on the detection information selected by the selection unit.

An agricultural vehicle header having a frame, at least one support arm extending, a cutter assembly attached to the distal ends of the support arms, a draper belt with an upper belt portion located above the support arms, and a parallel linkage connected to each support arm to operatively connect the cutter assembly to the frame. The linkage includes upper and lower links. The upper belt portion extends along a cross-belt direction that is perpendicular to a travel direction of the upper belt portion, and the proximal pivots of the upper and lower links are positioned on a line that is oriented at an angle of 60 to 120 degrees relative to the cross-belt direction when the header is in a freestanding static state.

An agricultural vehicle header having a frame, at least one support arm extending, a cutter assembly attached to the distal ends of the support arms, a draper belt with an upper belt portion located above the support arms, and a parallel linkage connected to each support arm to operatively connect the cutter assembly to the frame. The linkage includes upper and lower links. The upper belt portion extends along a cross-belt direction that is perpendicular to a travel direction of the upper belt portion, and the proximal pivots of the upper and lower links are positioned on a line that is oriented at an angle of 60 to 120 degrees relative to the cross-belt direction when the header is in a freestanding static state.

A harvesting head for a collection machine that harvests material. The head includes conveyor belts to transport material towards the collection machine, and blower heads to help prevent material from falling off the conveyor belts. The conveyor belts can include a feed belt that feeds material towards the collection machine, and a side belt that carries material towards the feed belt. Blower heads can blow across the side belt and towards the center of the feed belt. Blower heads can be located below the side belt. Blower heads can be located near the front of the feed belt and blow towards the collection machine. A feed drum can move material towards the collection machine, and blower heads can blow across the feed drum and towards the feed belt or collection machine. Blower heads can be movable, or have adjustable flow rate, velocity, direction or spread.

An agricultural attachment is provided with a cutter bar and a hydraulic motor for oscillatingly driving the cutter bar via an eccentric gear. The hydraulic motor is connected via a feed line and a return line to a hydraulic loaded with a hydrostatic liquid by a hydraulic pump. A switchover valve is integrated in the hydraulic circuit and switches pressure-dependently, wherein the switchover valve has a first switch position and a second switch position and is adjustable back and forth between the first switch position and the second switch position. The hydraulic motor is driven in the first switch position in a first rotational direction and is driven in the second switch position in a second rotational direction, wherein the second rotational direction is opposite to the first rotational direction.

An agricultural attachment is provided with a cutter bar and a hydraulic motor for oscillatingly driving the cutter bar via an eccentric gear. The hydraulic motor is connected via a feed line and a return line to a hydraulic loaded with a hydrostatic liquid by a hydraulic pump. A switchover valve is integrated in the hydraulic circuit and switches pressure-dependently, wherein the switchover valve has a first switch position and a second switch position and is adjustable back and forth between the first switch position and the second switch position. The hydraulic motor is driven in the first switch position in a first rotational direction and is driven in the second switch position in a second rotational direction, wherein the second rotational direction is opposite to the first rotational direction.

A harvesting header for use with a crop-harvesting machine includes a header frame (202), at least one harvesting tool (204) carried by the header frame, a rotatable arm (306) coupled to the header frame at a pivot point (308) and extending forward of the harvesting tool, a wheel (304) coupled to the rotatable arm and configured to roll along a soil surface leading the harvesting tool, and a sensor (402) coupled to the header frame at the pivot point and configured to measure an angle of the rotatable arm with respect to the header frame. An agricultural harvester includes a chassis, a feederhouse, a processing system, a grain bin, a harvesting header, and a control system. A method of operating an agricultural harvester includes propelling the agricultural harvester through an agricultural field, sensing a contour of a soil surface leading harvesting tool; and adjusting a height of the harvesting header based on the sensed contour.

The invention relates to a cutting mechanism (4) for installing on a harvesting machine (2). The aim of the invention is to provide a cutting mechanism which comprises a mounting for the cutting elements and which adapts easily to the soil contour without thereby tilting into an uncontrolled swing. This is achieved in that multiple or all of the rocker arms (16) are designed as a respective leaf spring assembly (20) composed of multiple leaf springs (22), multiple or all of the leaf springs (22) lying flatly one on top of the other as a leaf spring assembly (20) are held together on the frame (6) between clamping elements (24) at the frame-side leaf spring ends, and only one or multiple leaf springs (22) arranged in the upper region of the leaf spring assembly (20) are connected to the cutting elements (18). One or more of the leaf springs (22) which are held on the frame (6) between the clamping elements (24) and are arranged in the lower region of the leave spring assembly (20) terminate, when viewed in the working direction, in front of the connection zone (26) of the leave springs (22) which are arranged in the upper region of the leaf spring assembly (20) and comprise the cutting elements (18).