山地果园手扶式单履带运输车设计与试验
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摘要
设计一种以单履带为行走机构的山地果园运输车,该山地果园运输车由单履带行走装置、车架、传动装置、动力系统等组成,其主体外形尺寸为1 540mm×600mm×815mm。根据整车质心分析和人机工程学确定车辆的结构和运动参数,并利用Creo建立三维模型,计算出车辆的质心位置。根据车辆的质心位置分析车辆在横向坡面和纵向坡面的稳定性。对该山地果园运输车样机在满载情况下进行不同工作环境的测试,结果表明:设计的山地果园运输车的最大载荷为75kg,具备上10°纵向坡,下30°纵向坡以及通过20°横向坡面和通过各种复杂路面的能力。该运输车能够较好地满足山地果园横向运输要求。
A mountain orchard transport vehicle with single crawler was designed.The main body of that dimension is 1 540 mm×600 mm×815 mm,assembled by a single crawler walking device,frame,transmission,power systems and other equipment.The vehicle centroid analysis and ergonomics were used to determine the structure and movement parameters of vehicle.Creo was operated to build a model to calculate the vehicle's centroid position.Based on the vehicle's centroid position,the stability of the vehicle on the lateral and longitudinal slopes was analyzed.With full load,the prototype under different working environment was tested.Results showed that the maximum load capacity was 75 kg,with the ability to go up 10 degrees and go down 30 degrees of the longitudinal slope.It can run across the slope of20 degrees and run through various complex roads.The vehicle can well meet the requirements of mountain orchard lateral transport.
A mountain orchard transport vehicle with single crawler was designed.The main body of that dimension is 1 540 mm×600 mm×815 mm,assembled by a single crawler walking device,frame,transmission,power systems and other equipment.The vehicle centroid analysis and ergonomics were used to determine the structure and movement parameters of vehicle.Creo was operated to build a model to calculate the vehicle's centroid position.Based on the vehicle's centroid position,the stability of the vehicle on the lateral and longitudinal slopes was analyzed.With full load,the prototype under different working environment was tested.Results showed that the maximum load capacity was 75 kg,with the ability to go up 10 degrees and go down 30 degrees of the longitudinal slope.It can run across the slope of20 degrees and run through various complex roads.The vehicle can well meet the requirements of mountain orchard lateral transport.
引文
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[3]邢军军.自走式大坡度双轨道果园运输机的设计及仿真[D].武汉:华中农业大学,2012.
[4]刘佛良,张震邦,杨晓彬,等.山地果园双履带微型运输车的设计、仿真与试验[J].华中农业大学学报,2018,37(4):15-23.
[5]粘雅玲,沈嵘枫,张小珍,等.果园运输机械研究进展[J].农业技术与装备,2014,22:24-28.
[6]吴明清,田美丽.我国农用运输车现状及发展趋势分析[J].南方农机,2006(2):8-9.
[7]王彦生,张洪涛.国外运输型拖拉机的发展现状[J].拖拉机与农用运输车,2002(6):31-32,41.
[8]吴伟斌,游展辉,洪添胜,等.山地果园轮式运输机动力稳定系测试[J].华中农业大学学报,2017,36(3):86-92.
[9]李善军,邢军军,张衍林,等.7YGS-45型自走式双轨道山地果园运输机[J].农业机械学报,2011,42(8):85-88.
[10]孙振杰,刘俊峰,李彩风,等.微型农用履带式行走装置的设计方法[J].农机化研究,2011,33(10):55-58.
[11]许学建.履带式高地隙茶园管理机底盘行驶系统设计[D].镇江:江苏大学,2016.
[12]刘杰.山地果园无动力运输机研究[D].武汉:华中农业大学,2016.
[13]李壮哲.香蕉田间运输车的设计与试验[D].广州:仲恺农业工程学院,2014.
[14]张战文,杨福增,张振平.履带式拖拉机坡道行驶稳定性分析[J].农业装备与车辆工程,2010(11):7-10.
[15]李灏,刘新全,师宪福.履带车辆松软路面行驶阻力系数与附着系数关系研究[J].农业装备与车辆工程,2012,50(11):34-36.
[16]刘长生.汽车轮胎与公路路面附着系数的研究[J].公路,2006(5):159-163.
[17]巩青松.履带式工作车辆设计及分析的关键技术研究[D].扬州:扬州大学,2008.
[18]李从权,范超毅,苏新涛.农用手扶电力驱动车的设计与试验[J].农业工程学报,2011,27(S2):36-39.
[19]刘大为,谢方平,李旭,等.小型果园升降作业平台的计与试验[J].农业工程学报,2015,25(3):113-121.