Design Of Key Parts For A Self-propelled Green Soybean Pods Picking Machine

The green soybean has a long history in our country and is popular among people for itcan be used as a kind of food, medicine, grass, fertilizer. In recent years, with more andmore people putting emphasis on food safety and body health, it is in a new development forthe value of the soybean and is widely loved home and abroad for its low production cost,easy cultivation, rich nutrition and a wide range, good efficiency and other characteristics. Ithas a very good development prospect and some people even employ it to do horticulturalplants and food art.As a newly-developing industries, the matching machinery is very short and its harvestmachinery is still in a fledging period and completely unable to meet the needs of greensoybean industry, which has caused the shortage of labor, increase of costs. There is anurgent need to achieve green soybean harvest mechanization.In accordance with the need and the shortage of the current research in this field, havingabsorbed the experience of existing models of soybean harvester, analyzed and optimizedthe idea in the existing literature and the working principle of the congener mechanical, anddesigned the no-line self-propelled green soybean harvester, which can complete podpicking and cleaning all at once, not only improves the net rate, reduce the damage rate, butalso has very good filtering effect, improve the quality of the pod picking, it also has acertain reference value to the next development of green soybean harvesting mechanization.Having made a analysis on the planting patterns and the geometry size of the plants andpods: strip width is about1m,2per strip line,30-50cm spacing, hole distance is12cm-30cm,1-3pills every hole, plant height is25cm-63cm, diameter thick is about4-6mm, the bottompod height5-20cm, touch the ground growth phenomenon is widespread, pod length is4.7-6cm, width is1.1-1.6cm, providing a preliminary basis for the designing of greensoybean pod-picking machine.Putting forward a few basic problems of the green soybean’s harvesting mechanization:As to the characteristic of high density of plant, pods fresh, need to be refrigerated, it’sneeded that mechanical damage should be as small as possible; as to the phenomenon ofhigh net rate and the short distance to the earth, high picking-rate of the pods and lowwear-rate of the picking-tooth be taken into consideration. Yet having presented somesolutions.According with human body engineering, having put forward ideas on the machine layout,making the structure of the machine more compact, adopt a two-section conveyor belt toreasonably decorate the position of the conveyor belt, in order to expand driver’s field ofvision, increasing the safety of the machine operation.Putting forward a new type of picking mechanism for green soybean harvester-doublecarrier picking machine, to install the picking-tooth respectively on the picking roller andthe timing belt, with the meshing and separating of pulley and roller controlling the pickingtooth, imitating the slow way of artificial picking, achieve a goal of picking pods and unloadpods. As to the huge differences between ordinary material and the green soybeans, puttingforward the corresponding green soybean cleaning clearing device, roller sieve, so that thepod spread out before clearing and clear off the stem and leaf and other impurities, toachieve the requirements of traditional clearing device.Having optimized the bending of the traditional spring tooth, the arc shape can offset thecentrifugal force by the picking roller rotating, which can reduce the loss rate; In the end ofthe tooth, the reverse bending can reduce the damage degree to the pod by picking-tooth.