Earth working machine having a rotatable working apparatus axially positionally retainable with high tightening torque by means of a central bolt arrangement, and method for establishing and releasing such retention

US10724188B2 · kind B2 · utility

Assignee

• Wirtgen GmbH

Inventors

• Christian Berning · Euskirchen, DE
• Karsten Buhr · Willroth, DE
• Markus Frankemölle · Hennef (Sieg), DE
• Thomas Lehnert · Oberraden, DE
• Andreas Salz · Linz, DE
• Hardy Wilhelmi · Dattenberg, DE

Key dates

• Filing date: May 16, 2018
• Grant date: Jul 28, 2020
• Expiry date: Sep 29, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B39/02
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

An earth working machine includes a drive configuration and a working apparatus releasably connected together by a bolt component. A bolting moment bracing arrangement is connected or connectable in bolting moment-transferring fashion to the bolt component, and includes a bracing region that is embodied for bolting moment-bracing abutment in a bracing bolting direction against a counterpart bracing region, the drive configuration being embodied to be driven to rotate, in a rotation direction codirectional with the bracing bolting direction, while the bracing region is in abutment against the counterpart bracing region.