Straight blade straw returning machine

The component of the straight blade straw returning machine for chopping straw is the straight blade. When working, the tractor's power is transmitted to the gearbox through the universal joint, and then through the two-stage speed increase of the belt, driving the blade shaft and the blades on the blade shaft to rotate at a certain speed. With the assistance of negative pressure at the feeding inlet, the straw is fed into the casing and meets the first scheduled blade at the feeding inlet, undergoing the first shearing. When the straw flows along the inner wall of the casing to the gap between the crushing blade and the rear fixed blade, it is sheared again, further crushed, and finally evenly scattered in the field by the airflow. The blade is made of high-quality alloy steel, and the cutting edge is welded with wear-resistant alloy, which has high hardness and wear resistance. The blade shaft has undergone dynamic balance testing and adopts a spiral distributed blade, which works smoothly and has low vibration. Its advantages are: due to the large number of straight knives and the use of cutting methods to crush straw, it has low power consumption, high work efficiency, good quality of straw chopping, and is convenient for land tillage and sowing operations. The disadvantage is that the cost of replacing worn blades is high, and when the blades are lost or damaged, the weight difference between the blades on the same shaft is small, generally not more than 10 grams. This model is mainly used in the western and northern regions of Shandong Province, with a large quantity