US 6,981,665 B2
Cone crusher bowl adjustment mechanism
Thomas G. Braun, Muskego, Wis. (US); Dean M. Kaja, Germantown, Wis. (US); and Mark K. Torbett, Big Bend, Wis. (US)
Assigned to Metso Minerals Industries, Inc., Milwaukee, Wis. (US)
Filed on Dec. 18, 2002, as Appl. No. 10/323,028.
Application 10/323028 is a continuation in part of application No. 09/506530, filed on Feb. 17, 2000, granted, now 6,513,738.
Prior Publication US 2003/0094520 A1, May 22, 2003
Int. Cl. B02C 25/00 (2006.01)
U.S. Cl. 241—30 20 Claims
OG exemplary drawing
 
1. A method of adjusting a bowl with respect to a frame in a cone crusher, comprising the steps of:
providing a plurality of hydraulic motors adapted to rotate the bowl with respect to the frame;
providing at least one hydraulic pump adapted to provide fluid to the hydraulic motors;
setting a first adjustment speed having a first torque by operating more than one motor and the at least one hydraulic pump; and setting a second adjustment speed having a second torque by removing one of the operating motors from operation while maintaining operation of the at least one hydraulic pump;
wherein the second adjustment speed is greater than the first adjustment speed and the second torque is less than the first torque.