Chain wheel driving mechanism for paper shredder

The utility model provides a drive gear of kneaders consists of a motor,a chain pulley, and a cutting knife. The motor is connected with a reducer casing and a drive sprocket is fixed on the output axis of the reducer casing, a passive sprocket is fixed on the entire main cutting knife. The gear and passive gear are fixed on one end of the main knife and entire assistant knife respectively. The drive sprocket and passive sprocket are linked by the chain of the sleeve roller. The mechanical driving mode of this utilization is chain pulley rotating, the dynamic force is delivered by the sleeve roller which can realize a large moment of force, steady working performance, low noise, and quantity of shredding paper can be improved dramatically.