Sandvik Intellectual Property Ab

Sandvik Srp Ab

Anders Hallberg

Mikael M Larsson

Jan H Johansson

Bengt-Arne Eriksson

Patric Malmqvist

Axel Bergman

Fredrik Eriksson

Sonny Ek

Matts-Ake Nilsson

Anne Holmberg

Zeljko Nikolic

Thomas Ohlsson

Matts-ÅKe Nilsson

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.

Gyratory crusher main shaft and assembly

A gyratory crusher spider arm shield for releasable mounting to a spider arm is mounted in a position above and around the spider arm via locating feet and is maintained in the position by a fixating ring extending circumferentially around the spider arms and positioned at and above a perimeter of the spider.

Spider arm shield

Gyratory crusher topshell

A gyratory crusher spider wall shield for releasable mounting to a radially inward facing face of a spider positioned on top of a shell of a gyratory crusher includes a primary protection wall positionable over the inward face of the spider and a rear wall attachable to an outer annular fixating ring positionable axially intermediate a material input hopper and the spider.

Spider wall shield

A gyratory crusher shell has an annular wall extending around a longitudinal axis. A plurality of ears project radially outward from an annular rim of the topshell with each ear including a respective lug to sit within a corresponding recess at an annular rim of the topshell to rotatably lock the crushing shell at the topshell.

Crushing shell with rotational lock

Crusher

Growing community of inventors

Sodra Sandby, Sweden

Anders Hallberg