CUTTING DEVICE FOR FEEDER-CRUSHER (VERSIONS), FEEDER-CRUSHER, DEVICE FOR KEEPING THE CUTTER AND METHOD OF CONNECTING THE CUTYET TO MINING MACHINE Russian patent published in 2017 - IPC B02C17/10 E21C35/18 E21C35/19 

FIELD: mining engineering.

SUBSTANCE: feeder-crusher comprises a frame forming a receiving end and a discharge end, a conveyor attached to the frame for moving the raw material from receiving end to discharge end, and a crusher attached to the frame between receiving and discharge ends for processing raw materials. Crusher includes a holder having an opening for cutter, running along the longitudinal axis of holder, and an opening for a pin, located across the opening for cutter and crossing the cutter holding device. The cutter has a cutting part, a bar, and a recess made in the bar. Wherein, when the bar is held in the opening for cutter, the said recess is aligned with the pin opening. The holding device is designed to hold the cutter in holder and comprises a pin, freely disposed in said pin opening and recess with engagement with cutter, and an integral plug inserted into the pin opening and having a dimension that provides its resilient engagement with holder. In this case, the plug substantially insulates and holds the pin in said pin opening. The said pin is located in the pin opening in unsecured condition.

EFFECT: protection of connecting element against corrosion and easy replacement of cutter.

38 cl, 9 dwg