An undercarriage assembly of a work machine includes a drive wheel, front and rear idler wheels and a plurality of supporting mid-rollers. A belt disposed about the drive and idler wheels. A roller frame defines a main pivot axis located between front and rear ends. The front idler wheel is connected to the front end of the track roller frame. A major bogie having a forward bogie arm and a trailing bogie arm pivotably connects to the roller frame. The rear idler wheel connects to the trailing bogie arm. The major bogie pivot is offset from the main pivot along the roller frame such that the major bogie pivot is between the main pivot and the rear end of the roller frame. A minor bogie is connected to the major bogie at a minor bogie pivot defining a minor bogie pivot axis with the mid-rollers mounted on the minor bogie.

A crawler vehicle drive system, in particular for a crawler vehicle configured to groom ski slopes, having: a drive wheel rotating about a first rotation axis; an idle wheel rotating about a second rotation axis parallel to the first rotation axis); and a track looped around the drive wheel and the idle wheel, and comprising a plurality of belts made of an elastomeric material and a plurality of metal grousers fixed to the belt; wherein at least one belt has at least one continuous toothed strip extending along the inner face of the belt and configured to mesh with the drive wheel.

A crawler vehicle drive system, in particular for a crawler vehicle configured to groom ski slopes, having: a drive wheel rotating about a first rotation axis; an idle wheel rotating about a second rotation axis parallel to the first rotation axis); and a track looped around the drive wheel and the idle wheel, and comprising a plurality of belts made of an elastomeric material and a plurality of metal grousers fixed to the belt; wherein at least one belt has at least one continuous toothed strip extending along the inner face of the belt and configured to mesh with the drive wheel.

The invention relates to a suspension device for tracked vehicles, which vehicle comprises at least one pair of track assemblies, where each track assembly of the pair of track assemblies comprises a track support beam, at least one drive wheel, a plurality of support wheels and an endless track, wherein the drive wheel and the plurality of support wheels are rotatably secured to the track support beam. The drive wheel is arranged to drive the endless track running over the at least one drive wheel and the plurality of support wheels. The suspension device comprises a first suspension configuration constituting a support wheel suspension configuration configured to resiliently secure the support wheels to the track support beam, and a second suspension configuration configured to connect the track assembly pair with a centrally arranged center beam. The invention also relates to a tracked vehicle.

The invention relates to a suspension device for tracked vehicles, which vehicle comprises at least one pair of track assemblies, where each track assembly of the pair of track assemblies comprises a track support beam, at least one drive wheel, a plurality of support wheels and an endless track, wherein the drive wheel and the plurality of support wheels are rotatably secured to the track support beam. The drive wheel is arranged to drive the endless track running over the at least one drive wheel and the plurality of support wheels. The suspension device comprises a first suspension configuration constituting a support wheel suspension configuration configured to resiliently secure the support wheels to the track support beam, and a second suspension configuration configured to connect the track assembly pair with a centrally arranged center beam. The invention also relates to a tracked vehicle.

In one embodiment, a vehicle platform comprises a central body that can support one or more implement configurations, such as sprayer booms, or planting row units. A plurality of adjustable legs extends downward from the central body. Each adjustable leg has a corresponding leg actuator to adjust a respective vertical height of each adjustable leg. Each adjustable leg supports the central body. Planting row units are supported by or suspended from the central body

Track system for a vehicle having a chassis and a drive shaft extending laterally outwardly from the chassis includes: An attachment assembly having a leading pivot and a trailing pivot. A multi-member frame assembly including: a leading frame member pivotably connected to the attachment assembly via the leading pivot for pivoting about a leading pivot axis; a trailing frame member pivotably connected to the attachment assembly via the trailing pivot for pivoting about a trailing pivot axis; a leading wheel-bearing frame member at least indirectly pivotably connected to the leading frame member; a trailing wheel-bearing frame member at least indirectly pivotably connected to the trailing frame member. A damper interconnecting the leading frame member and the trailing frame member. A leading idler wheel assembly; a trailing idler wheel assembly; support wheel assemblies; a gearbox; a sprocket wheel; and an endless track.

A tracked vehicle has a chassis including a tunnel. An engine is connected to the chassis. An endless drive track is disposed below the tunnel and operatively connected to the engine. A suspension assembly supports and tensions the endless drive track. The suspension assembly has a longitudinal direction and a lateral direction. The suspension assembly includes a rail engaging the endless drive track. The rail extends in the longitudinal direction. A suspension arm has an upper end pivotally connected to the chassis about a first lateral axis, and a lower end pivotally connected to the rail about a second lateral axis. At least one shock absorber is connected between the chassis and the rail for biasing the rail away from the chassis. The chassis is pivotally connected to the rail via the suspension assembly about a longitudinally extending axis. A suspension assembly is also disclosed.

A tracked vehicle has a chassis including a tunnel. An engine is connected to the chassis. An endless drive track is disposed below the tunnel and operatively connected to the engine. A suspension assembly supports and tensions the endless drive track. The suspension assembly has a longitudinal direction and a lateral direction. The suspension assembly includes a rail engaging the endless drive track. The rail extends in the longitudinal direction. A suspension arm has an upper end pivotally connected to the chassis about a first lateral axis, and a lower end pivotally connected to the rail about a second lateral axis. At least one shock absorber is connected between the chassis and the rail for biasing the rail away from the chassis. The chassis is pivotally connected to the rail via the suspension assembly about a longitudinally extending axis. A suspension assembly is also disclosed.

A track assembly for providing traction to an off-road vehicle, such as an agricultural vehicle, a construction vehicle, or another work vehicle, in which the track assembly may comprise a suspension between a frame of the track assembly and a bogie carrying roller wheels of the track assembly.