ADAPTIVE JAW CRUSHER Russian patent published in 1998 - IPC

FIELD: processing of materials in mining, coal and building material industries. SUBSTANCE: adaptive jaw crusher includes drive actuating the movable jaw and simultaneously performing the function of drive of bin gate; to this end, it is made in form of toothed planetary type differential gear. Back coupling in crushing force is made in form of differential mechanical system motion screw - nut; nut is kinematically linked with input of toothed differential gear and is provided with adjustable brake; bush in which motion screw rotates is linked with output shaft of differential gear through gear wheel; carrier is linked with drive of crusher. Back coupling is closed to fixed jaw deviation hydraulic cylinder due to creation of mechanical interaction of motion screw with control members of flow regulator and safety valve communicated with working chamber of this hydraulic cylinder. EFFECT: reduction of specific power requirements; enhanced operational reliability of crusher and improved ecological safety. 1 dwg