# US 10,370,804 B2 · Quick change milling assembly for a cold planer

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- Number: US 10,370,804 B2
- Document ID: US10370804B2
- Status: Granted
- Kind: B2
- Application number: 15/632,996
- Filed: 2017-06-26
- Published: 2018-01-04
- Granted: 2019-08-06
- Earliest claimed: 2016-06-30
- Assignees: Caterpillar Paving Products Inc.
- Applicants: Caterpillar Paving Products Inc.
- Inventors: Colton Hirman; Lucian Husar; Nathan L. Mashek; Jason Robert Bjorge
- Web page: https://patentgrep.com/patent/US10370804B2

## CPC

- E01C 23/088: Rotary tools, e.g. milling drums {(for forming recesses to receive marking materials E01C23/0946)}
- E01C 23/127: {rotary, e.g. rotary hammers}
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)

## Abstract

A milling assembly for a cold planer including a frame and an actuator assembly having a plurality of movable locking rods for mounting the milling assembly to the frame is disclosed. The milling assembly comprises a drum housing, and a plurality of mounting units fixed to the drum housing for mounting the milling assembly to the frame. The mounting units include a plurality of mounting holes configured to receive a respective end portion of one of the plurality of movable locking rods. In another embodiment, a milling assembly including an actuator assembly with movable locking rods is disclosed.

## Claims

### Claim 1

A cold planer comprising:
a frame;
a milling assembly including a drum housing;
an actuator assembly mounted to the frame and having a plurality of movable rods for mounting, the milling assembly to the frame;
a plurality of mounting units fixed to the drum housing for mounting the milling assembly to the frame, the mounting units including a plurality of mounting holes configured to receive a respective end portion of one of the plurality of the movable locking rods;
at least one pin reception fixed to the drum housing; and
a lifting actuator connected to the frame, the lifting actuator including a lifting rod which is attachable to the at least one pin reception to lift the drum housing toward the frame.

### Claim 2 (depends on 1)

The cold planer of claim 1, wherein the mounting holes extend along respective hole axes extending in a horizontal direction.

### Claim 3 (depends on 1)

The cold planer of claim 1, wherein:
the drum housing longitudinally extends along a housing axis; and
the mounting units are formed as wedge-shaped protrusions extending from the drum housing in a radial direction of the housing axis.

### Claim 4 (depends on 1)

The cold planer of claim 1, wherein each mounting unit includes a first face extending in a virtual plane substantially perpendicular to a housing axis of the drum housing, and an opposing second face extending non-parallel to the first face, the mounting holes extending from the first face.

### Claim 5 (depends on 1)

The cold planer of claim 1, wherein the plurality of mounting units include a first mounting unit arranged in a first half section of a face of the drum housing, and a second mounting unit arranged in a second half section of the face adjacent to the first half section in a direction along a housing axis of the drum housing.

### Claim 6

A a cold planer comprising:
a milling assembly including a drum housing;
a frame having a plurality of mounting units having mounting holes for mounting the milling assembly to the frame;
an actuator assembly fixed to the drum housing, and having a plurality of movable locking rods configured to engage with the mounting holes for mounting the milling assembly to the frame;
at least one pin reception fixed to the drum housing; and
a lifting actuator connected to the frame, the lifting actuator including a lifting rod which attachable to the at least one pin reception to lift the drum housing toward the frame.

### Claim 7 (depends on 6)

The cold planer of claim 6, further comprising a plurality of mounting units formed as wedge-shaped protrusions extending from the drum housing in a radial direction of a longitudinal housing axis.

### Claim 8 (depends on 6)

The cold planer of claim 6, wherein the locking rods are movable in a horizontal direction.

### Claim 9 (depends on 6)

The cold planer of claim 6, wherein the locking rods include conical locking rod ends, and the mounting holes include conical sections.

### Claim 10 (depends on 6)

The cold planer of claim 6, wherein the actor assembly includes at least one hydraulic, electric, or pneumatic actuator.

### Claim 11 (depends on 6)

The cold planer of claim 6, wherein the actuator assembly includes an actuator with two locking rods movable in opposing directions.