In China's soybean research, single plant threshing is mainly accomplished by artificial and ordinary threshers. The use of artificial threshing results in a long harvest period and delays in agriculture, resulting in indirect loss and large overall investment. The use of common rice single-tree thresher has high fragmentation rate and entrainment loss rate, diffuse dust during work, and endangers the health of operators. After the operation, the internal cleaning of the machine was difficult, and the residual amount of the granules was large, resulting in severe crushing loss. With the formation and development of China's agricultural industry system, special threshing equipment for soybean research has also emerged one after another. The rice single-shell thresher with automatic metering device is mainly used for soybean breeding, test seeding, and test production, due to automatic metering devices. The machine can only work intermittently. Although the structure of threshing elements has been improved and the damage rate of grains has been greatly reduced in rice single-shell thresher, the internal damage of grains is unavoidable and the germination rate of seeds is reduced. Therefore, in this study, based on the panicle seed threshing machine, according to the artificial threshing process, through the profiling simulation, a high denitrification rate, small internal damage in the grains, high work efficiency, no dust, and satisfactory performance were designed. Long-period indoor scientific research test requirements and seed production of indoor soybean single seed thresher.

Rice single-tree thresher threshing device uses a compound type barrel. According to the design of the artificial site threshing process, it applies the rubbing principle firstly, and then hammers and thrashes the plants by round-grained rods. After that, the combing brush shakes the bow teeth structure to make the grains fall off and alternate with the drum rotation. Achieve full threshing. The compound type threshing drum has low rotating speed, round threshing parts, small impact force on the grains, softer threshing process, small seed damage, and a dust collection and dust collecting device to ensure a good work environment and maintain the health of the staff.

The key components of the indoor soybean single seed thresher are the feeding device, the threshing device, the cleaning device and the dust collecting device. Among them, the feeding device firmly clamps the soybean stems to ensure stable and uniform feeding of soybeans; the threshing device performs threshing on the soybean plants; the cleaning device separates and removes the detached beans and impurities; the impurity collection device collects impurities And dust removal features. This study is an exploratory research design for the whole structure of the indoor soybean single seed thresher, and only preliminary set relevant parameters.

Compared with the previous thresher, the single-tree thresher of rice uses the drum and the ultra-low rotation speed, which effectively reduces the mechanical damage during soybean threshing and ensures the seed germination rate. The circular pattern rods and bow teeth are arranged in an orderly manner, the decoction rate is high, the crusts and straw are broken less, and the threshing plants are complete, which is conducive to scientific research records.

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