4HLB-2型花生联合收获机起秧装置性能分析与试验  

Performance analysis and experiment on operation process of plant lifting device in 4HLB-2 type peanut combine harvester

作　　者：胡志超[1] 王海鸥[1] 彭宝良[1] 陈有庆[1] 吴峰[1] 谢焕雄[1] 

机构地区：[1]农业部南京农业机械化研究所,南京210014

出　　处：《农业工程学报》2012年第6期26-31,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：现代农业产业技术体系建设专项资金资助项目(CARS-14-08B);公益性行业(农业)科研专项资助项目(200903053)

摘　　要：为了解4HLB-2型花生联合收获机起秧作业过程和作业性能,该文对起秧装置进行运动分析,研究各部件主要运动参数和位置配置参数对起秧效果的影响,并进行田间试验验证。运动分析表明,采用扶禾器倾角80°、夹持链倾角35°、扶禾速度比(扶禾链速度与机器前进速度的比值)1.5、夹持速度比(夹持输送速度与机器前进速度的比值)1.2等设计参数,起秧作业时花生秧蔓与夹持链呈近似垂直夹持状态,夹持链拔取作用力近似垂直向上;在解析花生秧蔓扶禾运动过程的基础上,确定了秧蔓扶禾次数和作用于单穴秧蔓最大拨指数的计算方法,优化扶禾器拨指间距为150mm;分析了扶禾器、挖掘铲、夹持链的位置关系对起秧作业的影响,确定3个部件侧视图方向的主要位置参数:拨禾指最低点距挖掘面的距离170mm;拨禾指最低点距夹持点所在铅锤面的距离325mm;夹持点距挖掘面的距离290mm;挖掘铲距夹持点所在铅锤面的最小距离25mm。田间试验表明,该起秧装置的运动参数及各部件位置配置能较好地满足起秧性能要求,起秧过程和状态与理论分析基本稳合。该研究为该类型花生起秧装置的结构完善设计和作业参数优化提供依据。In order to investigate the operation process and performance of plant lifting of 4HLB-2-type peanut combine harvester, the motion analysis of the plant lifting device was carried out to explore the influence of motion parameters and location configuration parameters of all parts on plant lifting effect, and the field experimental verification was performed subsequently. According to the motion analysis, when the design parameters of vine uprearing device obliquity was 80°, clamping chain obliquity was 35°, vine uprearing speed ratio was 1.5, chain speed ratio was 1.2 and so on, peanut plant was nearly perpendicular with the clamping chain, and the pulling force of clamping chain was nearly directed in up-vertical orientation. Based on the analysis of the peanut vine uprearing motion process, the calculation methods of the vine uprearing times and the maximum active uperaring fingers for individual peanut plant were determined, and the separation distance of uprearing fingers optimized was 150 mm. The theoretical analysis also involved the influence of the location relation of vine uprearing device, digging shovel and clamping chain on the peanut plant lifting performance. And the main location parameters in the side view of the three parts were determined. Field tests showed that the motion parameters and location configuration of all parts can meet the performance requirements of peanut plant lifting, and the practical process and status of plant lifting were in agreement with the results of theoretical analysis. This paper provides a reference for improvement of structural design and optimization of working parameters in same type device.

关 键 词：收获机 运动参数 试验 花生 起秧装置 

分 类 号：S225.73[农业科学—农业机械化工程]