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刘辉,李善军,张衍林,马攀宇,陈猛.自走式单轨道山地果园运输机力学仿真与试验[J].华中农业大学学报,2019,38(2):114-122
自走式单轨道山地果园运输机力学仿真与试验
Mechanical simulation and experiment of self propelled monorail mountain orchard transporter under different racks
投稿时间:2018-04-14  
DOI:
中文关键词:  自走式  单轨道  山地果园运输机  齿形  力学仿真
英文关键词:self propelled  monorail  mountain orchard transporter  tooth form  dynamic simulation
基金项目:国家重点研发计划(2017YFD0202001、 2017YFD0701400);现代农业(柑橘)产业技术体系建设专项(CARS 26);公益性行业(农业)科研专项(201403036);中央高校基本科研业务费专项(2662015PY144)
作者单位E-mail
刘辉 华中农业大学工学院武汉 430070 liuhuiihzau@163.com 
李善军 1.华中农业大学工学院武汉 430070
2.农业农村部长江中下游农业装备重点实验室武汉 430070 
shanjunlee@mail.hzau.edu.cn 
张衍林 1.华中农业大学工学院武汉 430070
2.农业农村部长江中下游农业装备重点实验室武汉 430070 
 
马攀宇 华中农业大学工学院武汉 430070  
陈猛 华中农业大学工学院武汉 430070  
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中文摘要:
      为研究自走式单轨道山地果园运输机轨道齿条齿形和工作参数对运输机力学性能的影响,基于动力学理论和Hertz理论的Impact函数模型,建立运输机驱动轮与轨道齿条啮合的虚拟样机模型。选取齿条齿形、轨道坡度、驱动轮转速为评价指标,设计虚拟正交试验,结果显示:影响运输机作业力学性能的主次顺序为齿条齿形>轨道坡度>驱动轮转速,相同条件下链轮齿形齿条性能最优。台架试验结果表明,在轨道坡度分别为+0°、+6°、+12°,驱动轮转速为+88.08 rad/s时,驱动轮与链轮齿形齿条啮合时所需扭矩较圆弧齿形齿条分别减少33.82%、33.45%、18.36%,验证了模型仿真分析的正确性。
英文摘要:
      In order to research the influence of the rack tooth forms and working conditions on the mechanical property of self propelled monorail mountain orchard transporter,the dynamic models of the transmission system including the driving wheel and racks were established based on the dynamic theory and the Hertz impact contact theory.Based on ADAMS/View simulation software,the relation of the tooth forms and the torque of the driving wheel which was generated when the driving wheel was engaged with the racks was analyzed and simulated.The orthogonal experiment was carried out using tooth forms,rail gradients and angular velocity as experiment factors and the average torque as assessment index.Range analysis and variance analysis was used to determine the importance index for the torque.The results showed that the order of the primary and secondary impact on the mechanical performance of the transporter is rack tooth profile>track grade>drive wheel speed.Under the same conditions,the sprocket rack has the best performance.Under the condition of the angular velocity of the drive wheel was +88.08 rad/s,the rail gradients were +0°,+6°,+12°,the average torque was decreased by 33.82%,33.45%,18.36%,respectively when the driving wheel was engaged with chain wheel tooth form rack than arc tooth form rack.The correctness of the model simulation analysis is verified,which will provide a reference for the structural optimization design of self propelled monorail mountain orchard transporter track.
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