A breakaway hinge assembly includes a first bracket coupled to a boom section, a second bracket coupled to a breakaway boom section, and a damper system. The damper system includes a first damper assembly coupled to a stop bracket of the first bracket and a second damper assembly coupled to an upper bracket arm of the first bracket. Each damper assembly includes a housing, at least one rubber element disposed within the housing, a plunger having a first end in contact with the at least one rubber element, and a stop coupled to a second end of the plunger. The first and second brackets are pivotably coupled to each other so that the breakaway boom section pivots between a first position and a second position. The damper system is configured to prevent over-pivoting and reduce impact load of the breakaway boom section when pivoting to the first and second positions.

An agricultural toolbar has a center section and opposite wings which are horizontally foldable between transport and field positions. The toolbar has a hydraulic system which is very adaptable to many different hydraulically controlled features and options, without sacrificing the primary purpose of the system, which is accurately controlling the operating height of the toolbar, to achieve optimal planting depth of modern precision seed and fertilizer application systems.

The present invention is directed to a spray boom for an agricultural machine in which the boom is arranged as a truss with interior diagonal struts of the truss being configured to absorb tension and compression energy imparted by deflections over the length of the boom with such energy being dissipated as heat. In one aspect, the diagonal strut could comprise a rod moveable with respect to a tube with a polymer, such as an elastomeric material, arranged in the tube to dampen the movement. The tension and compression of the diagonal strut could subject the dampener to a shearing force which could be absorbed by the dampener rather than transferred to the machine.

An agricultural toolbar has a center section and opposite wings which are horizontally foldable between transport and field positions. The toolbar has a hydraulic system which is very adaptable to many different hydraulically controlled features and options, without sacrificing the primary purpose of the system, which is accurately controlling the operating height of the toolbar, to achieve optimal planting depth of modern precision seed and fertilizer application systems.

A system for actuating a sensor of an agricultural sprayer may include a boom assembly and a sensor assembly supported on a portion of the boom assembly. The sensor assembly may include a field sensor movable relative to the portion of the boom assembly between an extended position and a retracted position, where the field sensor generates data indicative of one or more field conditions when in the extended position. The sensor assembly may further include a sensor actuator that moves the field sensor between the extended and retracted positions, and a controller that controls the sensor actuator to move the field sensor between the extended and retracted positions. The field sensor is spaced relative to the portion of the boom assembly by a larger distance when in the extended position than when in the retracted position.

The present invention provides a system and method for real-time monitoring of an above-ground height of a boom based on multi-source information fusion. The system includes a boom, an information acquisition unit, and a control unit. The method includes: step 1: establishing a relationship between an above-ground height s of the boom and an output current y of a pull-wire cylinder displacement sensor; step 2: calibrating ultrasonic ranging sensors; step 3: acquiring above-ground heights of the boom; step 4: performing anti-interference processing on the acquired height data; step 5: calculating an above-ground height H.sub.0 of the boom by multi-source data fusion; step 6: calculating a distance H.sub.canno between the boom and a crop canopy; step 7: acquiring an inclination angle θ.sub.b of the boom; and step 8: calculating heights H.sub.end of two ends of the boom relative to ground.

An apparatus and method of applying liquid product to a crop growing in a field. A plurality of drop assemblies are laterally spaced along the boom structure, each of the plurality of drop assemblies include a boom mounting bracket which supports a vertical support member and a spray assembly disposed at a lower end of the vertical support member, the boom mounting bracket having a first pivot axis oriented substantially perpendicular to the boom structure. The drop assemblies are movable from a working position to a transport position. In the transport position the vertical support member is pivoted about the first axis such that the vertical support member is oriented toward the boom structure. In the working position the vertical support is oriented substantially perpendicular to the boom structure.

An agricultural system can include a boom assembly supporting one or more nozzle assemblies there along. A boom adjustment system can be operably coupled with the boom assembly. A sensing system can be configured to capture data indicative of one or more application variables. A computing system can be communicatively coupled to the boom adjustment system and the sensing system. The computing system can be configured to receive, from the sensing system, the data associated with the one or more application variables, calculate a spray quality index based on the data associated with the one or more application variables, and generate an output to change a position of the boom assembly through the boom adjustment system based at least in part on the calculated spray quality index deviating from a defined range.

A swivel bar is operatively connected by a bracket assembly to a toolbar, such that the swivel bar pivots back and forth in the horizontal plane about a pivot. A resilient device is positioned inside the swivel bar where the pivot is combined to the bracket assembly and extends through the swivel bar. At least one agricultural implement and preferably two agricultural implements are connected to the swivel bar on opposite sides of the pivot.

A self-leveling crop spraying apparatus is carried by a prime mover. The crop spraying apparatus includes first and second masts, and first and second opposed pendulum arm frame members slidingly engaged to the first and second masts. A pendulum arm extends through the first and second opposed pendulum arm frame members. The first and second pendulum assemblies are coupled to opposed ends of the pendulum arm, and a carriage assembly is carried by the first and second pendulum assemblies. The carriage assembly is rotatable relative to the first and second masts and first and second opposed pendulum arm frame members.