Design and experiment on 3ZCF-7700 multi-functional weeding-cultivating machine

In order to solve problems which existed in the former designed weeding-cultivating machines, such as injuring seedlings seriously, weeding difficultly and the low weeding rate on the course of mechanical weeding between crop seedlings, 3ZCF-7700 multi-functional weeding-cultivating machine matching with high-power tractors was developed. The machine which was suitable for cultivating in the field of corn, soybean and beat could finish the processes of deep side fertilizing, scarification and weeding between seedlings, earth up, ridging and deep loosening. Its main structure, working principle and the design of critical components were briefly described. The experimental results of the machine in the corn field showed that the average weeding rate between seedlings was 76%, the injury seedling rate was less than 4.4%, the average weeding rate between rows was 95.7%, and the other various performances met the design requirements. The machine can satisfy with the agronomic requirements of intertillage management in dry farmland.