352 results about "Agricultural tractor" patented technology

A control system for the drive of a power take-off mechanism on an agricultural tractor that records machine-specific values of the implement attached to the tractor. The drive train between the tractor engine and the power take-off includes a CVT transmission. The control device is connected with a processor via a signal lead for receiving its output signals. The control device is connected for the formation of output signals via input leads with switches, controls, sensors, and actuators for the tractor to read the machine specific parameters of the attached implement.

An arrangement of radiators (2–6) for a utility vehicle, e.g., an agricultural tractor, comprising three or more cooling radiators which together define a chamber (7), optionally with some of the walls formed by perforated plates instead of radiator elements. One of the radiator elements may be pivotally mounted with respect to the others to provide access to the chamber. The arrangement of radiators may be mounted on a common support (1).

This invention concerns a new grain unloading system using an integrated ramp, horizontal transfer conveyor and elevating system. The unit is towed, positioned and powered by an agricultural tractor.

A draft load control system for an agricultural tractor towing a trailed, ground-engaging implement that monitors implement height using sensors located on the tractor or sensors coupled to an on-board control communications system and adjusts the implement position in relation to the ground based on draft load, implement height, and tractor wheel-slip to maintain a more accurate, consistent draft load on the tractor while maintaining the implement engaged with the ground and preventing the tractor-implement ground speed from being reduced to zero.

A draft load control system for an agricultural tractor coupled to a semi-trailed, ground-engaging implement that monitors implement height using sensors located on the tractor or sensors coupled to an on-board control communications system and adjusts the implement position in relation to the ground through coordinated action of the three-point hitch and the on-implement position actuator based on draft load, implement height, and tractor wheel-slip to maintain a more accurate, consistent draft load on the tractor while maintaining the implement engaged with the ground and preventing the tractor-implement ground speed from being reduced to zero.

This invention concerns a new grain unloading system using an integrated ramp, horizontal transfer conveyor and elevating conveyor. The unit is towed, positioned and activated by an agricultural tractor.

A hybrid power train for farm tractors, wherein the elements defining at least one of the electric machines are housed in a structural casing formed in one piece. The structural casing forms an integral part of the supporting structure of the tractor in the form of a half-shell open on one side, so as to permit assembly of an insulating element, a stator, and a shaft fitted with a respective rotor to form the electric machine part of the hybrid power train. The diesel engine of the agricultural tractor is mechanically connected to the Power take-off mechanism by routing the PTO shaft through a number of hollow shafts for transmitting power from the diesel engine to and from the two electric machines by means of a conventional epicyclic gear train.

A tractor has a frame defined by two side rails extending longitudinally carried on ground wheels with a cab on the frame at one end and an engine compartment at the other end. The cab has doors on each side and there are provided two operator platforms each attached to the frame at a respective side with suitable ladder, guard rails and surface by which the operator can climb to the cab. Each operator platform is mounted for movement longitudinally of the frame on levers allowing movement along the side of the frame from the cab entry position to an engine service position. The platform can cover operator serviceable parts which in the cab position which are exposed when the platform is moved to the engine service position.

Embodiments of the present invention comprise a system for positioning a drawn implement being pulled by a vehicle traveling generally along a desired path of movement, the vehicle having a mounting hitch on the rear end thereof where a system hitch is configured to adjust its angular orientation relative to the vehicle mounting hitch and a global positioning system receiver operable to detect the position of the implement relative to the desired path as the vehicle moves generally along the desired path and generate a signal that is indicative of the lateral position of the implement relative to the desired path and means for controlling the hitch means to adjust the angular orientation of the hitch means so that the implement follows the desired path of movement in response to the global positioning system signals.

An automated soil sampler is removably mounted on an agricultural tractor and collects soil samples in a farm field while the tractor is driven through the field. At a periodic interval, the soil sampler momentarily lowers a soil collection knife into the soil to collect a soil sample, raises the collection knife out of the soil, and transfers the collected soil sample into a bar-coded storage container. The GPS location of the soil sample is associated with the storage container's bar-code in a data file. The interval between successive periodic soil samples corresponds to a determined forward displacement of the tractor. Storage containers that have received soil samples are moved to a storage area until all of the soil samples for a given field have been collected.

A suspended articulated front axle for vehicles, in particular farm tractors, wherein each axle shaft has at least one portion whose longitudinal axis of symmetry slopes by a sweep-back angle with respect to a line perpendicular to the longitudinal axis of symmetry of the vehicle. The sweep-back angle is such that the outer end of the sloping portion is located further back than the inner end of the portion in the common forward traveling direction of the vehicle.

A cooling system is provided for a non-rail off-road vehicle, such as an agricultural tractor having an engine with a horizontally oriented rotation axis and a hood covering the engine. The cooling system includes an engine cooling radiator positioned above the engine and between the engine and the hood and a fan unit with electric motor-driven fans blowing air upwardly through the radiator. The fan unit is positioned above the engine and between the engine and the radiator. An engine charge air cooler is also positioned above the engine and between the engine and the hood, and a charge air cooler fan unit has electric motor-driven fans which blow air upwardly through the cooler. The hood has openings in its upper surface through which passes air blown by the radiator fan unit and the charge air cooler fan unit. This cooling system blows heated cooling air vertically upwardly, thus preventing the heated cooling air from being drawn back into the intakes of the cooling system and preventing heated air from being blown onto the exterior of the tractor cab.

A three-point hitch faceplate having a set of skid steer receiver attachment points to permit an all-purpose agricultural tractor to operably connect to skid steer attachments so that the agricultural tractor can utilize off-the-shelf skid steer attachments.

An agricultural tractor (10) comprises a cooling package (22) disposed in front of an engine (20) and under a hood (14) forward of a cab (12). The cooling package (22) comprises a cooler having a major surface into which air enters. The cooling package (22) and hood (14) is inclined so that the major surface slopes upwardly in the rearward direction. The hood (14) comprises an air inlet grille (36) in the upper surface to provide an upstream air inlet for the cooling package (22), thereby significantly improving the airflow dynamics.

A method for rebuilding and maintaining vegetation ecosystem and pasture production system in semiarid wind sand area relates to the technical fields, such as agricultural water and soil conversation, prevention and control of desertification, pasture cultivation and ecological environment etc, wherein perennial pasture with properties of drought resistance, nitrogen fixing, cold resistance and saline alkali resistance is adopted to combine with a multifunctional ecological film compound fertilizer functioned to bond and fix sand, absorb dampness and infiltrate water, conserve water and soil, fertilize sand and nourish sprout, preserve heat and promote growth. The technical scheme is that: selecting in April or May in spring, on the basis of flat sandy land, after seed soaking, planting the perennial pasture plants, such as varied lobular clover, Astragalus adsurgens pall, sainfoin, vetch, Agropyron desertorum etc; then adopting a method of a spraying can or an agricultural tractor mating with a high pressure water pump; or burying a plastic pipe in the ground, one end of the plastic pipe being connected with a water pump of a large-scaled fertilizer film mixing tank and the other end thereof being connected with a spraying nozzle; spraying the multifunctional ecological film compound fertilizer by adding water in 50 to 60 times such that an ecological ground film with thickness about 2 mm is naturally formed on the surface of the earth; three processes of spraying water, applying fertilizer and laying film can be completed at the same time so as to synchronously build up an ecological vegetation and pasture production system.

A hydrostatic agricultural tractor has front ground wheels mounted on the frame at fixed angles parallel to each other and parallel to a center line of the frame and rear ground wheels mounted on a respective castor, with each of the front ground wheels being driven by a respective drive motor which allows variable speed in both the first and second directions such that steering of the tractor is effected by a differential in speed between the front wheels with the rear wheels following the steering in a castoring action. A pair of damper cylinders is provided each connected between a bracket on a rear axle of the frame and a lever in the castor plane of the castor so as to provide a damping force tending to restrict rotation of the respective second wheel about the respective vertical pivot axis with the damping force at a maximum value when the rear wheels are parallel to the center line in either the forward or reverse directions.

A theorem and method for determining the weight and center of gravity of a ground-engaging implemented connected to a three-point hitch on an agricultural tractor or other prime mover using hitch cylinder pressure and hitch position as calibration inputs to a hitch control system.

A PTO control system and method for engaging a PTO clutch of a vehicle or work machine such as, but not limited to, an agricultural tractor, that can effectively utilize both engine speed and PTO output speed values for determining a predicted and/or actual PTO load and other variable conditions which can effect engagement, and which can responsively calibrate the system for engagement under the load and other conditions and adaptively control applied acceleration and torque during the engagement.