两段圆锥式螺旋扶蔗机构的设计与仿真分析
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摘要
为了研究扶蔗机构的工作性能,优化扶蔗器结构参数设计,建立了运动学模型。使用Solid Works,设计两段圆锥式螺旋扶蔗机构虚拟样机,应用ADAMS仿真工具,进行了运动学及力学仿真试验及高速摄影试验验证。结果表明:输送段安装角为30°~60°范围内,甘蔗不跌落;输送段安装角为60°,甘蔗扶起到最高点为4.1s,效率最高;螺旋倾角为45°时,甘蔗均匀受到螺旋叶片的作用力,无跌落现象;螺距有效范围为270~290mm,螺距为285mm时,受力情况以及扶起变化最稳定,扶起效果最好。
In order to study the working performance of sugarcane support mechanism and optimize the structural parameter design of cane support device,a kinematics model was established. By using SOLIDWORKS,a virtual prototype of two-stage conical screw cane support mechanism was designed. The kinematics and mechanics simulation tests were carried out by using ADAMS simulation tool,and the high-speed photography test was also carried out. The results show that sugarcane does not fall in the range of 30 °-60 °,in which the angle of installation is 60 °,the highest point of cane is 4. 1 seconds,and the efficiency is the highest,and when the angle of helical inclination is 45 °,the sugarcane is subjected to the force of spiral blade evenly. The effective range of pitch is 270 mm-290 mm,and when the pitch is285 mm,the stress and lift are the most stable,and the lifting effect is the best.
In order to study the working performance of sugarcane support mechanism and optimize the structural parameter design of cane support device,a kinematics model was established. By using SOLIDWORKS,a virtual prototype of two-stage conical screw cane support mechanism was designed. The kinematics and mechanics simulation tests were carried out by using ADAMS simulation tool,and the high-speed photography test was also carried out. The results show that sugarcane does not fall in the range of 30 °-60 °,in which the angle of installation is 60 °,the highest point of cane is 4. 1 seconds,and the efficiency is the highest,and when the angle of helical inclination is 45 °,the sugarcane is subjected to the force of spiral blade evenly. The effective range of pitch is 270 mm-290 mm,and when the pitch is285 mm,the stress and lift are the most stable,and the lifting effect is the best.
引文
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[2]覃玉培.4GZQ-260型甘蔗联合收割机收获模式研究[J].广西农业机械化,2017(3):18-20.
[3]赵莹.我国甘蔗收获机械化推广应用现状与发展建议[J].中国农机化学报,2016,37(9):236-244.
[4]周敬辉,李尚平,莫翰宁.甘蔗收获机扶蔗器扶蔗性能的仿真与试验研究[J].农机化研究,2017,39(11):148-152.
[5]邓劲莲.甘蔗收获机扶蔗过程运动仿真的研究[J].广西大学学报:自然科学版,2002,27(2):109-112.
[6]牟向伟,区颖刚,张杨.拨指链式扶起机构试验[J].农业机械学报,2009,40(8):49-53.
[7]高建民.甘蔗螺旋扶起机构的理论研究及虚拟样机仿真[J].农业工程学报,2004,20(3):1-5.
[8]唐大芳,翁绍捷,林茂.小型整杆式甘蔗收割机拨蔗机构仿真试验研究[J].农机化研究,2017,39(2):148-152.
[9]胡金冰,王俊,胡莹.虚拟样机仿真的甘蔗扶蔗器参数优化[J].浙江大学学报:农业与生命科学版,2014,40(1):111-118.
[10]董振,蒙艳玫,李永敏.不等螺距螺旋扶蔗器的设计[J].农机化研究,2010,32(12):80-84.
[11]李尚平,邓雄,叶才福,等.甘蔗切割器螺旋提升机构输送性能分析与改进[J].农业工程学报,2016,32(5):21-28.