Crushing device with protection function for CBN grinding material recovery

The utility model discloses a crushing device with a protection function for CBN (cubic boron nitride) abrasive recovery, which belongs to the field of recovery equipment and is characterized by comprising a device body, the left side and the right side of the device body are communicated with upper extending cavities, and a lower extending cavity communicated with the device body is arranged below the upper extending cavity on the left side. A crushing plate block is arranged at the top end in the device body, a supporting pressing block is arranged below the crushing plate block, a side hydraulic cylinder and a crushing plate are started, so that CBN grinding materials are conveniently crushed, the CBN grinding materials are crushed in the device body, the CBN grinding materials are not prone to splashing, the crushing device has the protection effect, a flow guide hopper plays a flow guide role, and the crushing effect is improved. According to the CBN grinding material crushing device, the screen belt net