A suspension and clearance assembly includes a wheel hub and a hub attachment component. A suspension component is pivotally attached to the hub attachment component at one end, and a first clearance linkage is attached to the hub attachment component with a first pivot and with a second pivot to another end of the suspension component. A second clearance linkage is attachable to an agricultural machine frame and includes a pivot end attached to a third pivot of the first clearance linkage. One end of a cylinder is attached to the first clearance linkage and another end is pivotally attached to the second clearance linkage The cylinder retracts and extends to raise and lower the agricultural machine frame for variable ground clearance. Movements and/or vibrations between the wheel hub and the agricultural machine frame may be damped or suspended hydraulically with the suspension component.

Plant scanning vehicles (10) including, but not limited to, plant scanning vehicles for use in field-based phenotyping. There is a central body (16); three or more legs (15) extending from the central body (16) to support a wheel (13) on each leg (15); wherein the three or more legs (15) are mounted to the central body (16) rotatably about a respective vertical axis (95) to allow adjustment of a track width W of the vehicle by rotating the legs wherein the legs are mechanically coupled to transmit rotation between the legs about their respective vertical axes and the central body (16) or the three or more legs (13) are configured to support a sensor (47) to scan plants.

A wheel-mounting assembly for an agricultural utility vehicle includes a chassis and a telescopic axle arrangement fixed to the chassis. The telescopic axle arrangement includes an inner axle telescopically received in an outer axle, which is fixed to the chassis. A wheel-support assembly is mounted to an outboard end of the inner axle. A steering-control actuator is connected between the inner axle and the wheel-support assembly. The steering-control actuator is connected to the inner axle through an opening provided in the outer axle, which allows the steering-control actuator to translate together with the inner axle when track width is adjusted.

A self-propelled platform for monitoring field crop phenotype is provided. The monitoring platform includes a traveling and steering mechanism, wheel track and ground clearance adjustment devices, damping devices, and a case. The traveling and steering mechanism includes wheel side motors, wheels, and torque motors. The wheels are connected to respective upright posts of the platform through respective rigid independent suspensions. Each upright post is of sleeve structure and includes an upper sleeve and a lower sleeve. A corresponding damping device is connected between the upper sleeve and the lower sleeve. The wheel track and ground clearance adjustment devices are configured for adjusting the height of the case and the tracks between the wheels. The lower ends of the wheel track and ground clearance adjustment devices are rotatably connected to respective upright posts, and the upper ends are rotatably connected to the case.

A direction adjusting device for mounting to a steering system of a driving body includes a driving element and a linkage element. The driving element includes a fitting housing and a driving main body, the fitting housing has an accommodation space, the driving main body has a transmission channel, the driving main body is installed in the accommodation space of the fitting housing, and the transmission channel of the driving main body communicates with the accommodation space of the fitting housing. The linkage element is installed in the transmission channel, the driving main body is capable of for driving the linkage element to rotate, and the linkage element is installed on the steering system of the driving main body.

The invention relates to an agricultural vehicle chassis comprising two lateral half-chassis (21, 22) connected to each other and a device for adjusting the relative distance between the two lateral half-chassis (21, 22) allowing the width of the chassis to be varied and comprising at least one torque link (41, 42) formed by two rigid arms which are hinged to each other by a joint, named central joint (53, 73), comprising a pivot with a vertical axis allowing the two arms to be oriented with respect to each other so that they form an angle, named torque link angle, therebetween, said angle ranging between 0° and 180°, each arm of the torque link being hinged, respectively, to one of the two lateral half-chassis by a joint, named lateral joint (49, 50, 69, 70), comprising a pivot with a vertical axis, and a device for adjusting the torque link angle. The invention also relates to a vehicle equipped with such a chassis.

A tractor includes a frame defines longitudinal (nominally forward and backward), lateral (nominally left and right), and transverse (nominally up and down) directions (mutually orthogonal). First and second side structures connect by a width adjustment structure comprising beams of bearing length and bearing width capable of supporting loads (torque, bending, etc.) at any of a plurality of widths therebetween. Individual drive systems in the first and second sides each include a track, motor, sprocket, main idler, and bogey idlers. A carrier system secures, lifts, and descends an implement. Implements may be of any type, such as tillage, harrowing, furrowing, seeding, cultivation, personnel carrier, or the like. A controller is capable of directing the tractor based on a pre-determined course of travel, or a guided course in response to physical features in a farming field.

A walk-behind tractor has an increased ground clearance to define a plant receiving space that has a greater height than a conventional walk-behind tractor having a straight axle. The walk-behind tractor has trailing drop arms from a frame that carry wheel axles that result in an elevated height of a driveshaft. The elevated driveshaft increases the ground clearance for taller plants to pass therebeneath during operation of the walk-behind tractor which would otherwise be too tall to pass below a conventional straight axle walk-behind tractor.

In a riding work vehicle, power of an engine is transmitted to a traveling wheel via a horizontally oriented transmission shaft and a vertically oriented transmission shaft. The traveling wheel is supported to be changeable in direction about a rotational axis of the vertically oriented transmission shaft. Each of the vertically oriented transmission shaft and a vertically oriented transmission case is provided as an inner/outer double structure expandable/contractible in association with sliding movement thereof. The vertically oriented transmission case is supported to be pivotable together with the traveling wheel. There is provided a vehicle height adjustment mechanism capable of switching, in a plurality of steps, a relative height of the traveling wheel relative to a vehicle body frame.

A machine includes a chassis, a plurality of ground-engaging elements supporting the chassis above a ground surface, a motor for driving at least one of the ground-engaging elements and a plurality of assemblies supporting the chassis on the ground-engaging elements. Each of the assemblies is configured to selectively raise and lower the chassis relative to the ground surface and includes a first attachment component for attaching the assembly to one of the ground-engaging elements, a second attachment component for attaching the assembly to the chassis, an adjustment component for shifting the first attachment component between a plurality of operating positions relative to the second attachment component. A control system allows an operator to remotely control the adjustment components of each of the assemblies.