Structure design of a new carrot grading device

Abstract In this paper, aiming at the design of the sorting device for rod-shaped vegetables and fruits, the research status of grading device at home and abroad is analysed, and a variety of grading device mechanisms are compared, and the design scheme of a variety of carrot grading device is determined. Through analogy analysis, a carrot grading device is designed. The grading device is composed of cleaning and feeding device and automatic grading device. The cleaning uniformity device is mainly to put carrots in the pool for cleaning, and then the motor operates, and the conveyor belt with inclined partition starts to work, and the carrots are transported to the grading device through the partition board. The principle of automatic grading device is to grade carrots by adjusting the gap between two adjacent conveyor belts. The gap size is arranged from small to large in order to realize automatic grading according to the diameter of carrots. In this paper, the following aspects are analyzed: by comparing the mechanism of other grading device, the carrot grading device is analyzed and designed. The mechanical part is designed to be three-dimensional using Pro/E modeling, as well as part modeling and assembly. At present, there are some defects in the design of rod-shaped vegetable and fruit grading device in our country. The research has filled the defect and has high practicability.