A plant vine chopper rotor drum assembly has a plurality of rotor rings spaced along, encircling, and attached to the longitudinal outer surface of a rotatable main drum tube. Each rotor ring has one or more pairs of angled mounting tabs that alternate to the left and to the right to the general plane of respective rotor ring; and the rotor rings are distributed in a cutting zone along and surrounding the longitudinal rotational axis of the drum tube with each mounting tab having a generally planar cutting blade attached. The angled blades distributed around the outer circumference of the ring cooperate one with another during operational rotation of the drum to guard each blade and the drum against the wrapping of clogging fibrous strands and other clogging material around the drum.

The disclosure relates to an assembly for a mower of a mowing or chopping machine, which comprises a tool carrier, which is formed with a carrier disk and which is configured to be mounted rotatably about an axis of rotation to a mower of a mowing or chopping machine; and cutting tools, which are each formed with a cutting blade located radially outwardly to the axis of rotation and a holding section located radially inwardly to the axis of rotation and which are detachably mounted to the carrier disk in an assigned carrier section, wherein the cutting tools are each mounted to the tool carrier by a mounting bolt, wherein the mounting bolt is in each case mounted to the cutting tools in a non-detachable manner. The disclosure furthermore relates to a replacement cutting tool and a mower for a mowing or chopping machine.

Chopping unit (5) of an agricultural harvesting machine (1), having a chopping drum (10) bearing chopping knives, a first roller pair (11) consisting of an upper and a lower press roller (15) and (16) positioned upstream of the chopping drum (10), at least one second roller pair (12) consisting of a pre-compression roller (13) and a transport roller (14) positioned upstream of the first roller pair (11), a counter-cutting device (18) cooperating with the chopping drum (10) and a stripper device (19) cooperating with the lower press roller (16), arranged between the lower press roller (16) and the chopping drum (10), wherein a rotary shaft (20) of the lower press roller (16) and/or a rotary shaft (21) of the transport roller (14) can be displaced in its relative position to a rotary shaft (17) of the chopping drum (10) at least in the vertical direction.

An adjustment apparatus for a forage harvester having a shear bar adjustably mounted on a housing. A chopper drum is supported from the housing and mounted for rotation about an axis and further provided with a plurality of circumferentially spaced knife supports to which at least one chopper knife can be adjustably secured. In use the chopper knives cooperate with the shear bar to chop incoming crop. The adjustment apparatus includes a lateral element, at least one location element and at least one radially inwardly directed guide surface. The adjustment apparatus also includes at least one shear bar alignment surface on one or more of the location elements.

A knife and blade for agricultural machines, in particular mower knife blades, straw chopper knives, corn header knives, feed mixer knives, loader wagon knives and baler knives, has at least one toothed cutting edge extending from a cutting edge beginning to a cutting edge end on a blade surface. The cutting edge has a straight or curved configuration and the blade surface has a mounting section. The toothing of the cutting edge is varied along its length with regard to the tooth pitch and/or the tooth geometry.

An adjustment apparatus for a forage harvester having a shear bar adjustably mounted on a housing. A chopper drum is supported from the housing and mounted for rotation about an axis and further provided with a plurality of circumferentially spaced knife supports to which at least one chopper knife can be adjustably secured. In use the chopper knives cooperate with the shear bar to chop incoming crop. The adjustment apparatus includes a lateral element, at least one location element and at least one radially inwardly directed guide surface, each radially inwardly directed guide surface describing a desired outer path of an unworn chopper knife. Each guide surface is adjustably located with respect to the lateral element.

A chopper assembly for a crop residue distribution system of an agricultural combine may include a rotor shaft extending lengthwise along a rotational axis between a first end and a second end. The chopper assembly may also include a plurality of flail blades pivotally coupled to the rotor shaft. Each flail blade may be configured to pivot relative to the rotor shaft about a pivot axis, with the flail blades being spaced apart axially from one another between the first and second ends of the rotor shaft. In addition, the chopper assembly may include one or more features configured to improve the performance of the chopper assembly during low speed operation. For example, the feature(s) may correspond to one or more fixed blades coupled to the rotor shaft and/or one or more torsional springs provided in operative association with one or more of the flail blades.

A harvesting machine includes a main frame having a main actuator; a cutting frame having a crop guiding surface including a plurality of slots extending in a direction of travel of crop over the crop guiding surface and a plurality of knives pivotally mounted below the crop guiding surface; an outer frame being pivotable around a common pivot axis and being connected to the actuator; an inner frame having a plurality of operating units, and a selector mechanism configured to selectively engage one or more of the plurality of operating units. The outer frame includes an axis for pivotally holding a plurality of levers, each lever being pivotally connected to an operating unit of each knife. Guides are provided for lateral movement of the crop guiding surface with the plurality of knives from an operating position into a servicing position and vice versa.

An adjustment apparatus for a forage harvester including a shear bar which is adjustably mounted on a housing which supports a chopper drum mounted for rotation about an axis and having a plurality of circumferentially spaced knife supports holding adjustably secured chopper knifes. The chopper knives act with the shear bar to chop incoming crop. The adjustment apparatus includes a lateral element, at least one location element and at least one radially inwardly directed guide surface, which follows a desired outer path of an unworn chopper knife.

A chopper drum assembly for a forage harvester including a chopper drum housing, a shear bar, a shear bar holder and a wear plate assembly. The chopper drum housing includes a first part and a wear plate assembly support surface. The shear bar holder is pivotally connected at a first end to the first part of the chopper drum housing and fixedly connected to the shear bar at a second end. A first end of the wear plate assembly is pivotally connected to the second end of the shear bar holder adjacent the shear bar, and a second end of the wear plate assembly is supported by the wear plate assembly support surface wherein, the wear plate support surface is arranged to be inclined to the horizontal.