Cutter head for longwall shearer

US10036248B2 · kind B2 · utility

Assignees

• Joy Global Underground Mining LLC · US
• The United States of America, as represented by the Secretary of the Dep. of Health and Human Services · US

Inventors

• Joseph Defibaugh · Chambersburg, US
• Hugo Camargo · Quakertown, US
• Junyi Yang · Cupertino, US

Key dates

• Filing date: Oct 9, 2015
• Grant date: Jul 31, 2018
• Expiry date: Dec 31, 2035

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21C35/18
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A cutter head for a mining machine includes a first end and a second end with a drum axis extending between the first and the second ends. The cutter head also includes a web coupled to the second end of the drum. The web includes a plurality of arcuate apertures. Each arcuate aperture extends through an angle about the drum axis. The cutter head further includes a plurality of first ribs coupled to the web. Each of the first ribs is positioned between adjacent arcuate apertures. The cutter head also includes a plurality of second ribs coupled to the web. Each of the second ribs extend across one of the plurality of arcuate apertures. A first angle that extends between one of the first ribs and an adjacent one of the second ribs is different than a second angle extending between the one first rib and another adjacent second rib.