A milling machine includes a frame, a housing, a milling drum mounted on the frame within the housing and a drive assembly. A positioning assembly is provided for moving the drive assembly between a first position which is laterally outside the periphery of the machine housing and a second position which is laterally inside the periphery of the machine housing, and for locking the drive assembly in at least the first and second positions without requiring the operator to manually manipulate a locking pin.

A wheel adjustment system for an agricultural implement includes a controller having a processor and a memory. The processor is configured to receive a first signal indicative of a ground speed of the agricultural implement, receive a second signal indicative of a desired position of a wheel of the agricultural implement, receive a third signal indicative of a current position of the wheel of the agricultural implement, and output a control signal to adjust a position of the wheel of the agricultural implement based on the first signal, the second signal, and the third signal, wherein a rate of adjustment of the position of the wheel varies based on the first signal.

Some embodiments are directed to an adjustment assembly for changing width of a vehicle including at least one pair of wheels, where the adjustment assembly is embedded in the vehicle and is connectable to a pair of front, middle or rear wheels thereof. The adjustment assembly includes, inter alia: a foldable unit connectable to the pair of wheels of the vehicle, configured for changing its overall length over a predefined axis “Y” connecting the centers of the pair of wheels, for adjusting a distance between the pair of wheels it connects to; and a tilting unit operatively associated with the pair of wheels of the vehicle to which the foldable unit connects. The tilting unit is configured for changing angular positioning of the pair of wheels in respect to the “Y” axis, during driving of the vehicle when folded or unfolded.

A wheel-mounting assembly for a utility vehicle includes a chassis and a wheel support assembly mounted to respective outboard ends of first and second telescopic axle assemblies. The first and second telescopic axle assemblies are laterally spaced from one another and are each secured to the chassis. The first and second telescopic axle assemblies each include a respective actuator arranged to control extension and retraction thereof for steering and track-width control.

A vehicle having a front axle with a pair of front wheels having a track width adjustable between a wide track and a narrow track; a rear axle with at least one rear wheel; a steering wheel configured to control the turn of the rear wheel when the front wheels are set to the narrow track; track width control configured to change the track width of the front wheels and to change the wheel base between the front axle and the rear axle such that for the wide track of the front wheels the wheel base is longer than for the narrow track of the front wheels; a locking mechanism configured to lock the track width; wherein each of the front wheels is connected to a dedicated front wheel motor for driving that front wheel and to a dedicated front wheel brake for braking that front wheel.

A combine harvester with a variable length wheelbase. For example, a combine harvester may have a chassis defining a forward end and a rear end, a feeder house at the forward end of the chassis, a first set of ground-engaging elements supporting the forward end of the chassis, and a second set of ground-engaging elements supporting the rear end of the chassis. The second set of ground-engaging elements are configured to move forward and rearward relative to the chassis.

Vehicles are disclosed which have a lower center of gravity than existing all-terrain, amphibious, and unmanned ground vehicles due to the location of propulsion units and other vehicle components inside the wheels of the vehicle. The vehicles can climb over large obstacles vet are also able to corner at high speeds. The vehicles can be configured for direct manual operation or operation by remote control, and can also be configured for a wide variety of missions.

Vehicles are disclosed which have a lower center of gravity than existing all-terrain, amphibious, and unmanned ground vehicles due to the location of propulsion units and other vehicle components inside the wheels of the vehicle. The vehicles can climb over large obstacles yet are also able to corner at high speeds. The vehicles can be configured for direct manual operation or operation by remote control, and can also be configured for a wide variety of missions.

The invention relates to a chassis comprising a base (12) and four wheels (14) each being mounted on the base by way of a respective supporting device (16) and each being capable of being brought out of a transport position into an operating position of the chassis (10), and vice versa, wherein each supporting device comprises a support or carrier arm (18), which is arranged on the base via a proximal end (20) to be pivotable out of the transport position into the operating position of the chassis, and vice versa, and at a distal end (22) receives an axle journal (24) for rotation, a first control (30) for pivoting the support or carrier arm out of the transport position into the operating position of the chassis, and vice versa, the axle journal rotatably arranged at the distal end of the support or carrier arm, a stub axle (40), which is pivotably arranged on the axle journal and receives the wheel for rotation at a distal end (42) of the axle journal; and a second control (44) for pivoting the stub axle against the axle journal.

A combine harvester with a variable length wheelbase. For example, a combine harvester may have a chassis defining a forward end and a rear end, a feeder house at the forward end of the chassis, a first set of ground-engaging elements supporting the forward end of the chassis, and a second set of ground-engaging elements supporting the rear end of the chassis. The second set of ground-engaging elements are configured to move forward and rearward relative to the chassis.