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Journal of Chinese Agricultural Mechanization

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Design and experiment research of double-axis rotary tillage machine for sowing, ditching, and covering soil
Gu Chenjia, Xi Xiaobo, Han Lianjie, Zhang Yifu, Zhang Baofeng, Zhang Ruihong
Abstract228)      PDF (3012KB)(372)      
Aiming at the problems of poor sowing quality, poor stability of sowing depth, and low degree of compound operation of wheat sowing machine, a double axis rotary tillage and pressing groove sowing, ditching, and even covering soil machine was designed. This paper analyzed the working principle of the machine and, according to the actual operation needs, designed a transmission system and calculated the transmission efficiency of the whole machine, which was 0.716. In order to open 5 cm wide and 1-3 cm deep wheat seed trough stably, a special slotted wheel was designed to ensure the sowing depth and improve the stability of sowing depth and width. According to the working width of 3 500 mm and the sowing depth of 1-3 cm, the parameters of the length and diameter of the auger were determined, and a ditching and even covering soil device was designed. The left and right two-stage auger mechanism was used to improve the soil flatness within the range of tillage. A soil cleaning device was also designed with left and right two-stage auger mechanisms. The results showed that the accuracy of the prototype was 88.67%, the dispersion was 45.45%, the uniformity was 73.74%, the accuracy of the ordinary seeder was 78.72%, the dispersion was 39.38%, and the uniformity was 44.83%.
2021, 42 (11): 17-22.    doi: 10.13733/j.jcam.issn.20955553.2021.11.04