Milling drum tool holder
AssigneeCaterpillar Paving Products Inc.
InventorsAnne K. Fundakowski, Benjamin T. Schafer, Joseph D. Koehler, David N. Peterson
Life of this patent
Estimating the term…
Abstract
A tool holder is disclosed for use with a milling drum. The tool holder may have a generally cylindrical body defining a first end configured to be received within a tool mounting block of the milling drum, and a second end configured to receive a cutting bit. The tool holder may also have a flange located between the first end and the second end, and a first blind bore initiating at the second end and stopping at the flange such that the generally cylindrical body is substantially solid at the flange. The tool holder may further have at least one sloped surface located at a side of the flange facing the first end of the generally cylindrical body.
Claims20
A tool holder for a milling drum, comprising:
- a generally cylindrical body defining a first end configured to be received within a tool mounting block of the milling drum, and a second end configured to receive a cutting bit;
- a flange located between the first end and the second end;
- a first blind bore initiating at the second end and stopping at the flange such that the generally cylindrical body is solid at the flange;
- at least one generally planar sloped surface located at a side of the flange facing the first end of the generally cylindrical body and extending radially outward in a cross-slope direction from the generally cylindrical body to a periphery of the flange;
- a radial opening passing through a wall of the generally cylindrical body to communicate with an internal end of the first blind bore.
A tool holder for a milling drum, comprising:
- a generally cylindrical body defining a first tapered end configured to be received within a tool mounting block of the milling drum, and a second end configured to receive a cutting bit;
- a flange located between the first tapered end and the second end;
- a first bore initiating at the second end and extending toward the flange;
- and
- a necked-down area adjacent the flange at the second end;
- wherein a diameter of the necked-down area adjacent the flange is smaller than a diameter of the generally cylindrical body at an opposing side of the flange.
A milling drum, comprising:
- a head having a cylindrical outer surface;
- a plurality of mounting blocks arranged into spiraling rows on the cylindrical outer surface of the head;
- a plurality of cutting bits;
- and
- a plurality of tool holders operatively connecting the plurality of cutting bits to the plurality of mounting blocks each of the plurality of tool holders including:
- a generally cylindrical body defining a first end received within a corresponding one of the plurality of mounting blocks, and a second end configured to receive a corresponding one of the plurality of cutting bits;
- a flange located between the first end and the second end;
- a first blind bore initiating at the second end and stopping at about an axial midpoint of the flange such that the generally cylindrical body is solid at the flange;
- a second blind bore in general alignment with the first blind bore, initiating at the first end, and stopping axially short of the flange;
- sloped generally planar surfaces located within the flange at opposing sides of the generally cylindrical body, facing the first end of the generally cylindrical body, and extending radially outward from the generally cylindrical body to a periphery of the flange;
- and
- a necked-down area adjacent the flange at the second end,
- wherein a diameter of the necked-down area adjacent the flange is smaller than a diameter of the generally cylindrical body at an opposing side of the flange.
Dependencies are inferred from the claim text.