Harnischfeger Technologies, Inc.

Joy Global Surface Mining Inc

Andrew Wurster

Samuel F Haworth

Edwin C Hahlbeck

Peter Sandoval, Jr

Russ Cascio

Tim Bachinski

Samuel Haworth

A mast and rack assembly for a mining machine includes a mast and a rack assembly coupled to the mast. The rack assembly includes outer rails and rack segments disposed between the outer rails and the mast. At least one of the outer rails overlaps two of the rack segments.

Mast with rack assembly

A hoist system includes a drum, a motor, and a transmission. The drum includes a hollow shell, a first end, a second end, and an internal web, and defines a longitudinal axis extending between the first end and the second end. The internal web extends across an interior portion of the shell in a direction perpendicular to the longitudinal axis, thereby defining a first portion and a second portion of the shell. The motor is coupled to the first end and includes an output shaft. The transmission is driven by the motor and includes a planetary gear train positioned within the interior portion of the shell. The planetary gear train includes an input gear coupled to the motor output shaft and an output gear coupled to the internal web to rotate the drum about the longitudinal axis. The planetary gear train is positioned in a first portion of the shell.

Hoist drive for mining machine

A saddle block assembly including a main body having a shipper shaft opening through the main body bottom end, and an eccentric pin opening in the main body top end, an eccentric pin received in an eccentric pin opening in the top end of the main body, and a wear plate support. The wear plate support has a pin receiving opening, the eccentric pin being received in the pin receiving opening. Wear plates are mounted on the bottom end of the wear plate support and are adapted to bear against the top of a dipper handle.

Electric mining shovel saddle block assembly with adjustable wear plates

Growing community of inventors

New Berlin, WI, United States of America

Andrew Wurster