Hydraulic hammer
AssigneeDeere & Company
InventorHatim Bookwala
Life of this patent
Estimating the term…
Abstract
A hydraulic hammer for a working machine configured for digging a surface includes a housing, a chisel, sensors, and a controller. The housing is coupled to the working machine. The chisel is partially enclosed by the housing and extendable from the housing for digging the surface at a contact location. Each of the sensors is configured for generating a signal indicative of a projecting distance between one of the sensors and the surface. The controller is configured for receiving the signals, determining an angle between the chisel and a plane substantially tangent to the contact location, and reorienting the chisel so that the chisel is substantially orthogonal to the contact location with the angle at substantially ninety degrees.
Claims15
A method to adjust an orientation of a hydraulic hammer of a working machine digging at a contact location of a surface, comprising:
- providing a housing of the hydraulic hammer having a bottom surface including an aperture;
- providing a chisel partially enclosed by the housing and extendable from the aperture for digging the surface;
- providing a first sensor and a second sensor positioned on the bottom surface of the housing;
- generating a first signal indicative of a first projecting distance between the first sensor and the surface by the first sensor;
- generating a second signal indicative of a second projecting distance between the second sensor and the surface by the second sensor;
- receiving the first signal and the second signal;
- determining an angle between the chisel and a plane tangent to the contact location of the surface based on the first signal and the second signal;
- and
- reorienting the chisel, if the angle between the chisel and the plane tangent to the contact location of the surface is not at ninety degrees, until the chisel is orthogonal to the contact location with the angle at ninety degrees.
Dependencies are inferred from the claim text.