Trenching system with hydraulically adjustable hub
First Claim
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1. A work machine comprising:
- a frame movable across a surface of the ground;
a trenching assembly supported on the frame, the trenching assembly comprising;
a hood assembly, moveable relative to the frame relative to three axes;
a hub connected to and slidably movable relative to the hood assembly;
a linear actuator for sliding the hub relative to the hood assembly; and
a rotatable blade disposed within the hood assembly and mounted on the hub; and
a cylinder assembly disposed between the trenching assembly and the frame, wherein the cylinder assembly manipulates a position of the trenching assembly relative to the frame.
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Accused Products
Abstract
A system for uncovering a trench. The system comprises several subsystems, including a work machine and a frame for providing a seal with the surface to be trenched with a saw blade contained therein. The blade is supported on a hub which is slidably movable relative to the frame by operation of a linear actuator, which may be a hydraulic cylinder or the like. The vertical location of the blade within the frame is continuously adjustable to create a deeper or shallower trench. A monitoring system is provided to monitor the vertical location from an operator station.
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Citations
21 Claims
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1. A work machine comprising:
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a frame movable across a surface of the ground; a trenching assembly supported on the frame, the trenching assembly comprising; a hood assembly, moveable relative to the frame relative to three axes; a hub connected to and slidably movable relative to the hood assembly; a linear actuator for sliding the hub relative to the hood assembly; and a rotatable blade disposed within the hood assembly and mounted on the hub; and a cylinder assembly disposed between the trenching assembly and the frame, wherein the cylinder assembly manipulates a position of the trenching assembly relative to the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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8. A method for cutting a narrow trench in a surface using a rotatable blade moveably attached to a frame and disposed within a cavity defined by a hood assembly, the hood assembly comprising a surface engaging member, the method comprising:
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adjusting the blade relative to the surface engaging member to achieve a desired trench depth; rotating the blade to cut a trench; positioning the surface engaging member on the surface adjacent the blade; translating the frame in a direction of desired trench length; applying a downpressure greater than the weight of the hood assembly to the surface at the surface engaging member to stabilize a portion of the surface adjacent the trench; and adjusting the position of the blade relative to the surface engaging member during rotation of the blade to change the trench depth. - View Dependent Claims (18, 19, 20, 21)
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Specification