A disc mower for cutting crop material includes a plurality of cutter assemblies attached to a frame. Each of the cutter assemblies includes a respective motor operatively attached to a respective disc for rotating the disc. A cutter controller is operatively coupled to the respective motor of each of the plurality of cutter assemblies for selectively controlling a respective commanded rotational speed of the respective motor of one of the cutter assemblies independently of the respective commanded rotational speed of the respective motor of another of the cutter assemblies. Each of the individual cutter assemblies may be vertically moveable relative to the frame independently of the other of the cutter assemblies.

A rock guard for use on a rotary disc cutterbar having quick-release knife connectors wherein a knife removal relief channel is oriented 45 degrees from a straight-ahead orientation to allow more than one quarter of the knives on the cutterbar to be simultaneously aligned with the channels for removal. A second knife removal channel is also oriented 45 degrees from the straight ahead orientation and 90 degrees from the first channel to permit half of the knives on the cutterbar to be simultaneously aligned with the channels for removal. The incorporation of two knife removal channels as described benefits rotary cutterbars having two knives per rotary cutter and adjacent cutters rotationally offset by 90 degrees regardless of whether co-rotating or counter-rotating rotary cutters are employed.

A module cutterbar assembly includes a plurality of modules coupled to one another along a joint. Each module has a first surface defining a first plane and an internal cavity. A drive transfer mechanism is disposed within the internal cavity of each of the plurality of modules, and a drive hub assembly is mechanically coupled to the drive transfer mechanism and extends out of the internal cavity away from the first plane. A cutting disk is coupled to the drive hub of each of the plurality of modules. A coupling mount is positioned on each side of each joint and extends from the first plane towards the cutting disk. A cavity is partially defined by the first plane, the cutting disk, and the drive hub in each module. The coupling mount is disposed at least partially within the cavity.

A modular cutterbar assembly capable of moving in a direction of travel may include a first module forming a first surface, a second surface, a front edge, and a rear edge. The assembly may also include a second module coupled to the first module such that the second module forms a first surface, a second surface, a front edge, and a rear edge. A joint is defined between first and second module and defining a joint plane. A first coupler is defined through the joint of the first and second modules at each respective front edge and defining a first coupler axis, and a second coupler is defined through the joint of the first and second modules at each respective rear edge and defining a second coupler axis. The joint plane is angled relative to the direction of travel.

An elongated rotary cutterbar assembly includes a housing having a first surface, a second surface, a front portion, and a rear portion. At least one disk is rotatably coupled to the housing, and the assembly further includes a first tab at least partially disposed between the first surface and the second surface, and a tab plane defined by the first tab and extending between the first surface and the second surface. A stop surface is defined in the housing offset from the tab plane towards the first surface, and a disk guard is coupled to the housing at the first tab. A receiver is defined in the disk guard at a location adjacent to the first stop surface. When a force is applied to the disk guard towards the first surface, the first receiver contacts the first stop surface to restrict deflection of the disk guard relative to the housing.

A modular cutterbar assembly operably coupled to a work machine includes at least one module and an end cap coupled to the at least one module. The end cap includes an upper surface defined between a first end and a second end, and an inner cavity is defined in the first end of the end cap. The inner cavity is configured to substantially enclose a drive transfer mechanism. An aperture is defined in the upper surface, and a coupler arm is integrally formed with the second end of the end cap. The coupler arm is configured to be coupled to the work machine.

A rotary cutterbar disk hub assembly for diverting debris includes a cutterbar housing defining an internal cavity and a bearing housing defining an axis and coupled to the cutterbar housing. A labyrinth is defined in the bearing housing circumferentially about the axis, and a barrier is formed by the bearing housing at a location radially outward of the labyrinth. A disk hub is positioned concentric with the axis and coupled to the bearing housing and cutterbar housing. The disk hub forms at least one protrusion that extends towards the bearing housing and is radially adjacent to the labyrinth. The barrier restricts a portion of the debris from entering the labyrinth, and the at least one protrusion severs debris that is disposed near the labyrinth as the disk hub rotates.

A mower disc includes a body having an elongated slot. A retention block includes a pocket defining a radially outer portion and a radially inner portion. The retention block includes a cover portion covering the radially outer portion of the pocket and the elongated slot. A pin passes through the elongated slot and is moveable within the elongated slot along a radially extending path between the radially outer portion and the radially inner portion of the pocket. When the pin is disposed in the radially outer portion, the cover portion of the retention block covers the pin to prevent withdrawal of the pin from the elongated slot. When the pin is disposed in the radially inner portion, the pin may be removed from the elongated slot through an access opening. A knife is positioned adjacent the lower surface of the body and is coupled to the pin.

A converging drum for a crop mowing implement includes a body that extends along a central longitudinal axis. The body rotates about the central longitudinal axis in a defined rotational direction. At least one ramp feature extends radially outward from the body, relative to the central longitudinal axis. The ramp feature is arranged to form an acute angle relative to a reference plane. The acute angle may open toward the defined rotational direction to move cut crop downward, or the acute angle may open away from the defined rotational direction to move crop upward, to position the cut crop for a conditioning system. The converging drum may include a first group of ramp features near a second end of the body for moving cut crop downward, and/or a second group of ramp features near a first end of the body for moving cut crop upward.

An agricultural machine is with skids equipped with interchangeable liners. The agricultural machine is a disk mower, a swather or similar machine, resting at least partly in braced manner on the soil during its use and provided with a working element and with skids designed to slide on the soil. These skids are formed in a lower wall of the working element or are integral with this lower wall, and each skid is provided with a liner having at least one frontal end and a frontal rim on each side of this frontal end. At least one of the frontal rims of the liner of each skid has a relief, at least one part of which penetrates into an indentation formed in the corresponding skid.