DEVICE FOR CRUSHING OVERSIZED ITEMS Russian patent published in 2021 - IPC E21C37/02 B02C1/14 

FIELD: mining engineering.

SUBSTANCE: invention relates to mining and can be used for crushing oversized rocks. The device for crushing oversized objects includes an impact module with a striker connected to a manipulator on a fixed support surface. The lifting mechanism is connected via a cable through the support surface to the drummer. One end of the cable is attached to the drum of the lifting mechanism, which is located on the manipulator. The second end of the cable is connected to the rod and the working tool by a three-line connection. The two extreme lines of this connection are fixed rigidly on the sides of the working tool and fix the grips in the grooves of the housing and the guides of the working tool. The central line is rigidly fixed to the upper end of the rod and forms a single unit with the extreme lines at the point of the attachment node. The working tool and the body are made with central bores, in which a drummer is installed, made with a wedge in its middle part. The side faces of the striker are connected to the inclined sides of the gripper pins, which are installed simultaneously in the guides of the working tool and the grooves of the housing with the possibility of limited movement along them. The grooves of the housing are made so that their profile is a sequence of protrusions and depressions, the geometric parameters of which correspond to the parameters of the pins of the grips. The lower end of the drummer is located in the groove of the working tool.

EFFECT: increased crushing efficiency and reduced dynamic loads on the machine.

1 cl, 2 dwg