Patent ID: 7942355
Filing Date: 2011-05-17
Classification: B02C

Abstract:
1. A self-traveling crushing machine comprising: a traveling device; a crushing device that is provided on the traveling device and crushes a to-be-crushed object supplied thereto; an overload escaping section that escapes an overload of the crushing device; and a controller that controls the crushing device, wherein the crushing device comprises a jaw crusher in which the to-be-crushed object is supplied to a V-shaped space formed by a fixed jaw and a movable jaw, and wherein the movable jaw swings relative to the fixed jaw to crush the to-be-crushed object, and wherein the controller comprises: wherein the overload escaping section comprises a toggle plate, the toggle plate having a first end connected to a crushing device body on which the fixed jaw is fixed and a second end connected to the movable jaw, the toggle plate buckling when the movable jaw is overloaded, and wherein the escape-operation determining section conducts determination of the escape operation based on a detection signal from a stress sensor that detects a change of a stress generated in the toggle plate.