Caterpillar Paving Products Inc.

Ryan S Hutar

Nicholas Bernard Johnson

Craig T Hedstrom

Nathan L Mashek

Nick Johnson

Colton J Hirman

Eric Steven Engelmann

Jason William Muir

Roger Allen Hedlund

Dustin William Sondreal

Mario Persano

A milling machine can include a frame, a milling assembly including a cutting rotor and a rotor housing coupled to the frame, the cutting rotor including a rotor shell positioned around a spindle, and a first axial alignment feature on one of the rotor shell or the spindle, the first axial alignment feature including a physical feature on a surface of the rotor shell or the spindle, the physical feature being positioned and configured to contact an opposing flat surface of the opposing rotor shell or spindle so as to guide the rotor shell and the spindle into a co-axial alignment as the rotor shell is loaded axially onto the spindle.

Quick change rotor alignment feature

A retention system for retaining a milling drum to a driveshaft of a milling assembly. The driveshaft is powered to drive the milling drum about an axis. The retention system includes a retention member coupled to the driveshaft between a first position and a second position. In the first position, the retention member restricts a disengagement between an engagement surface of the driveshaft and a mating surface of the milling drum, inhibiting a release of the milling drum from the driveshaft along the axis. In the second position, the retention member provides clearance for the disengagement of the engagement surface and the mating surface, facilitating the release of the milling drum from the driveshaft along the axis.

Retention system for retaining milling drums

A system for transferring torque from a driveshaft to a milling drum mountable on the driveshaft. The system includes a first coupler removably coupled to the driveshaft to co-rotate with the driveshaft. The first coupler defines an engagement surface. Also, the system includes a second coupler removably coupled to the milling drum. The second coupler defines a mating surface engageable with the engagement surface of the first coupler to engage the second coupler to the first coupler and transfer torque from the driveshaft to the milling drum.

System for transferring torque from driveshafts to milling drums

A milling rotor of a milling machine can include a drum, cutting teeth, and a centering ring. The drum can extend along a longitudinal axis and can define an inner surface and an opposing outer surface. The drum can be securable to a drive assembly of the milling machine to allow the drum to rotate therewith. The cutting teeth can be connected to the outer surface of the drum and can be configured to engage pavement. The centering ring can be connected to the inner surface of the drum and can include a centering interface and an alignment interface. The centering interface can extend radially inward and can be engageable with a centering flange of the drive assembly to center the milling rotor with respect to the drive assembly. The alignment interface can be adjacent the centering interface and can extend radially inward of the centering interface.

Milling drum with alignment interface

A mobile milling machine includes a cutting rotor disposed along a rotor drum delineating a drum rotation axis and accommodated in a rotor chamber delineated by chamber enclosure. To rotatably support the rotor drum with respect to the chamber enclosure, the rotor drum can include a bearing end and the chamber enclosure can include a bearing bore that are adapted to form a drum bearing assembly. The drum bearing assembly may include a bearing hub and a bushing configured to make a sliding frictional contact along complementary taper surfaces. The floating bushing may be floatingly retained in a chamber door of the chamber enclosure.

Milling machine with drum bearing assembly

Some examples described herein include a flexible hopper for a conveyor system. The flexible hopper may include a hopper weldment attached to a frame of the conveyor, wherein the hopper weldment surrounds a charge end of the conveyor, a flexible frame configured to enable an opening of the flexible hopper to expand or contract, and/or a skirt attached to the flexible frame and configured to form an enclosure between the flexible frame and the hopper weldment.

Flexible hopper for a conveyor system

An operator station is provided. The operator station may include a platform. The platform may at least partially extend along a plane. The operator station may include a first linkage member attached to a first portion of the platform and a second linkage member attached to a second portion of the platform. The first linkage member may be pivotal with respect to a first pivot axis, and the second linkage member may be pivotal with respect to a second pivot axis. The operator station may include an actuating member attached to the first linkage member. The actuating member may actuate the first linkage member for pivoting the first linkage member in a first direction and pivoting the second linkage member in the first direction. The platform may linearly translate in the plane during pivoting of the first linkage member and the second linkage member.

Movable operator station for improved visibility

A rotor position indicator system may include a side plate and a first rotor width indicator plate. The side plate may be positioned on a side of an earth moving milling machine, and the first rotor width indicator plate may be inset on an external face of the side plate. The first rotor width indicator plate may include a plurality of markings, with each marking corresponding to a rotor position.

Rotor position indicator system

A cold planer is provided. The cold planer includes an engine and an enclosure compartment for a milling rotor. The enclosure compartment includes a frame defining an opening of the enclosure compartment. The enclosure compartment includes a moldboard connected to the frame. The moldboard is configured to move vertically between a first position and a second position with respect to the frame. An interfacing arrangement includes a first pair of components carried by the frame and a second pair of components carried by the moldboard. The components of one of the first pair of components and the second pair of components have slanted edges. The first and second pairs of components are configured to allow a lateral movement of the moldboard when the moldboard is in the first position and to engage one another to prevent the lateral movement of the moldboard when the moldboard is in the second position.

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Plymouth, MN, United States of America

Ryan S Hutar