Crushing roll for a crusher

US10399081B2 · kind B2 · utility

Assignee

• TAKRAF GMBH · DE

Inventors

• Burkhard Petack · Senftenberg - Zły Komorow, DE
• Marko SCHMIDT · Riesa, DE
• Karsten Ebenhan · Dresden, DE
• Patrick Neufeldt · Finsterwalde, DE

Key dates

• Filing date: Apr 17, 2016
• Grant date: Sep 3, 2019
• Expiry date: Apr 17, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B02C2210/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a crushing roll for a roll-type crusher has a shaft with at least one groove extending in the axial direction on its lateral surface, to receive formed elements. The formed elements serve to retain the crushing shells, for which purpose the formed elements form a form-interlockingly engaging combination with the groove in the shaft, in the radial direction. A “form-interlockingly engaging combination in the radial direction” is understood here to signify means of blocking of movement of the formed elements in the radial direction of the shaft. In this way, it is possible to anchor the crushing shells in the grooves by means of the formed elements. Advantageously, also axial forces from the crushing shells can be transmitted to the shaft via the formed elements in the grooves, which forces can thereby be borne by the shaft, given that a high pressing force can be transmitted via the combination of a crushing shell and formed element, resulting in high holding friction between the molded element and the shaft.