Device for scarifying bulky material

The invention discloses a device for scarifying a bulky material and relates to the field of machinery. The device is characterized by comprising a scarifying shovel, a crankshaft link, a crankshaft, a cam, a roller-sliding bar mechanism, a spring, a link and the like. The crankshaft drives the crankshaft link to move up and down, and then, the crankshaft link drives the scarifying shovel to move up and down through a scarifying shovel sliding bar hinged with the crankshaft link; and the roller-sliding bar mechanism moves leftwards or rightwards under the action of a pushing force of the cam or a restoring force of the spring, and then, the scarifying shovel is driven to move leftwards or rightwards through a rocking bar hinged with the link. The functions of inserting, supporting and overturning the bulky material are achieved in a process that the scarifying shovel moves upwards, downwards, leftwards and rightwards. According to the device, the bulky material can be subjected to uninterrupted scarifying dur