摘要
针对现有的甘蔗田间运输车存在卸料时重心不稳,易发生倾翻的问题,设计一款输送臂卸料式甘蔗田间运输车。首先采用EDEM软件建立输送臂虚拟模型,通过单因素试验分析输送倾角和输送速度对输送量的影响规律。然后进行双因素试验,通过方差分析得到最佳输送组合和影响输送性能的主次顺序。最后通过田间试验对仿真所得的数据进行验证。仿真结果表明:在相同的输送速度下,输送倾角为30°~45°时,输送量随着输送倾角的增大而增大;输送倾角大于45°后,输送量降低。在相同的输送倾角下,输送速度为0.65~0.80 m/s时,输送量随着输送速度的增大而增大;输送速度大于0.80 m/s后,输送量降低。输送速度对输送量的影响程度大于输送倾角,并得出最佳组合为:输送倾角为45°,输送速度为0.80 m/s。田间试验结果表明:田间试验输送量为10.87 kg/s,与仿真值的相对误差为17.6%。
To solve the problem of instability and prone to tipping when unloading,a sugarcane field transporter with conveying arm was designed.The virtual model of conveying arm was established by using EDEM software.The influence mechanism of conveying tilt angle and conveying speed on conveying performance was analyzed by a single factor test.Then the two-factor experiment was carried out to obtain the best operating parameters and the order of primary and secondary influencing the conveying performance.Finally,the simulation data were verified by field experiment.The results from the simulation showed that at the same conveying speed,the conveying capacity increased with the increase of the conveying tilt angle in the range of 30°-45°.When the conveying tilt angle was greater than 45°,the conveying capacity decreased.In addition,under the same conveying tilt angle,the conveying capacity increased with the increase of the conveying speed in the range of 0.65-0.80 m/s.When the conveying speed was greater than 0.80 m/s,the conveying capacity decreased.The influence of conveying speed on conveying capacity was greater than that of conveying tilt angle.The operating parameters were optimal when the conveying tilt angle was 45°,and the conveying speed was 0.80 m/s.The result from the field test showed that the field experiment transportability was 10.87 kg/s,and the relative error between the experiment value and the simulation value was 17.6%.
作者
武涛
吴合槟
刘庆庭
梁小玲
樊秋菊
Wu Tao;Wu Hebin;Liu Qingting;Liang Xiaoling;Fan Qiuju(College of Engineering,South China Agricultural University,Guangzhou,510642,China;Key Laboratory of Key Technology on Agricultural Machine and Equipment,Ministry of Education,Guangzhou,510642,China)
出处
《中国农机化学报》
北大核心
2021年第7期107-114,共8页
Journal of Chinese Agricultural Mechanization
基金
国家重点研发计划(2018YFD0701105)
国家重点研发计划(2016YFD0701202)
广州市科技计划(201807010084)
广东省甘蔗剑麻产业技术体系创新团队(2019KJ104—11)
国家糖料产业技术体系岗位项目(CARS—170402)。
