Patent · US Active

Gyratory crusher main shaft and assembly

US11014090B2 · kind B2 · utility

0Cited by

15References

14Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Axel Bergman · Nordstraße, SE
Mikael Larsson · Eslöv, SE
Patric Malmqvist · Svedala, SE
Anders Hallberg · Lund, SE
Matts-Ake Nilsson · Gärds Köpinge, SE
Fredrik Eriksson · Malmö, SE
Bengt-Arne Eriksson · Svedala, SE
Anne Holmberg · Löddeköpinge, SE

Key dates

Filing date	May 23, 2014
Grant date	May 25, 2021
Priority date	—
Expiry date	May 6, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C2/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A gyratory crusher main shaft assembly has a main shaft, an axially upper region of the main shaft including a tapered conical section with a protective sleeve friction fitted over the cone. To facilitate mounting and dismounting of the sleeve, at least one groove is indented within a radially external facing surface of the main shaft at the region of the cone to allow fluid to be introduced under pressure to the region between the sleeve and the cone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.