Milling systems and methods for a milling machine
AssigneeCaterpillar Paving Products Inc.
InventorDustin W. Sondreal
Life of this patent
Estimating the term…
Abstract
A milling system for a milling machine includes at least one cutting assembly configured to be coupled to a drum. Each of the cutting assemblies includes a base portion and an impact portion. The base portion includes a standoff coupled to the drum, a first base block coupled to the standoff, and a second base block coupled to the standoff at a position upstream of the first base block in a direction of rotation of the drum and at angle from the first base block. The impact portion includes a cutting bit and a tool holder coupled to the first base block, and a protective element coupled to the second base block.
Claims20
A milling system for a milling machine, comprising:
- at least one cutting assembly configured to be coupled to a drum, wherein each of the at least one cutting assembly includes:
- a base portion, including a standoff configured to be welded to a radial exterior of the drum and extending radially away from the radial exterior of the drum, a first base block coupled to the standoff, and a second base block coupled to the standoff at a position upstream of the first base block in a direction of rotation of the drum and oriented at an angle from the first base block;
- and
- an impact portion, including a cutting bit and a tool holder coupled to the first base block, and a protective element coupled to the second base block,
- wherein the first base block and the second base block are similar in structure such that the first base block includes a first receptacle and a first extension adjacent to the first receptacle, and the second base block includes a second receptacle and a second extension adjacent to the second receptacle,
- wherein the standoff includes a base portion coupled to the drum and a support portion with a first coupling surface supporting the first base block and a second coupling surface supporting the second base block, wherein the second coupling surface is angled by approximately 30 degrees relative to the first coupling surface, and
- wherein the standoff further includes a central portion extending between the base portion and the support portion, wherein the central portion includes a tapered and/or reduced thickness over one or more portions between the base portion and the support portion.
A method of adjusting milling properties of a rotor for a milling machine, comprising:
- accessing the rotor, wherein the rotor includes a drum and a plurality of cutting assemblies, wherein each cutting assembly includes a standoff coupled to a radial exterior of the drum, a first base block coupled to the standoff, a second base block coupled to the standoff at a position upstream of the standoff in a direction of rotation of the rotor, a cutting bit, a tool holder coupled to the first base block and holding the cutting bit, and a first protective element coupled to the second base block, wherein the second base block is identical to the first base block and is oriented at an angle of approximately 30 degrees from the first base block;
- removing the first protective element and coupling a second protective element to the second base block, wherein the rotor with the second protective element has a different milling property than the rotor with the first protective element, wherein the second protective element has a different shape than the first protective element;
- and
- enclosing the rotor,
- wherein the second base block includes an extension, wherein the first and second protective elements include a forked portion that partially surrounds the extension when the protective element is coupled to the second base block.
A cutting assembly for a milling machine, comprising:
- a base portion, including a standoff coupled to a radial exterior of a drum, a first base block coupled to the standoff, and a second base block identical to the first base block coupled to the standoff at a position upstream of the first base block in a direction of rotation of the drum and at an angle relative to the first base block;
- and
- an impact portion, including a cutting bit and a tool holder coupled to the first base block, and a protective element coupled to the second base block,
- wherein the standoff includes a base portion and a support portion, wherein the base portion is configured to be coupled to the drum, and wherein the support portion includes a first coupling surface supporting the first base block and a second coupling surface supporting the second base block, wherein the second coupling surface is angled by approximately 30 degrees relative to the first coupling surface, and
- wherein the standoff further includes a central portion extending between the base portion and the support portion, wherein the central portion includes a tapered and/or reduced thickness over one or more portions between the base portion and the support portion.
Dependencies are inferred from the claim text.