HYDRAULIC BRUSH CUTTER

摘要

A brush cutter includes a center deck that is pivotally coupled to a first wing deck and a second wing deck. Each deck has a hydraulic cutting assembly. A mounting portion can be attached to a front carrier portion of a drive vehicle. The brush cutter has a hydraulic manifold operably coupled to each cutting assembly and configured to be operably coupled to a hydraulic system of the drive vehicle. The manifold includes valves that control the flow of drive fluid to the hydraulic cutting assemblies. Sensing arrangements signal the valves to shut off the drive fluid to the wing decks if the wing decks pivot upward from a lowered position to a first angular position. The sensing arrangements can optionally signal the drive vehicle's hydraulic system to reduce the flow of drive fluid to the hydraulic manifold for each wing deck that pivots upward to the angular position.

主权项

1. A hydraulically driven rotary brush cutter, comprising:
a first wing deck comprising a first hydraulic cutting assembly; a second wing deck comprising a second hydraulic cutting assembly; a center deck having a first side pivotally coupled to the first wing deck and a second side pivotally coupled to the second wing deck, the center deck comprising a third hydraulic cutting assembly; a mounting portion positioned at a back end of the center deck, the mounting portion configured to be attached to a front carrier portion of a drive vehicle; a hydraulic manifold operably coupled to each of the first, second, and third hydraulic cutting assemblies, the hydraulic manifold configured to be operably coupled to a hydraulic power system of the drive vehicle and comprising a first valve that controls flow of a drive fluid to the first hydraulic cutting assembly, and a second valve that controls flow of the drive fluid the second hydraulic cutting assembly; a first sensing arrangement that signals the first valve to shut off flow of the drive fluid to the first hydraulic cutting assembly when the first wing deck pivots upward from a lowered position to a first angular position; and a second sensing arrangement that signals the second valve to shut off flow of the drive fluid to the second hydraulic cutting assembly when the second wing deck pivots upward from the lowered position to a second angular position.