一种新型手扶挖藕机的结构设计与研究

提出了一种新型手扶轮式挖藕机。以车架作为载体承载发动机和喷头支架,喷头浸没水中靠近泥面,利用高压水射流对泥土冲刷粉碎,使得莲藕自动浮出水面。该机器使用双动力系统,汽油机水泵负责供水,柴油发动机通过变速箱减速增扭从而驱动机器前进。借助计算机仿真对挖藕机车架强度刚度进行计算,加工样机并组装零部件,验证了车架强度刚度设计符合使用要求。最后通过田间现场试验记录样机相关数据,挖藕机前进平均速度为1.63 m/min,工作幅宽为1.2 m,平均工作效率为122.25 m2/h,相对人工单喷枪挖藕效率提高3.5倍左右,试验结果表明,该样机作业稳定性能优良,达到所设计的目标要求。

Research and Design on an Automatic Walking Dig Lotus Root Machine

An automatic walking dig lotus root machine was put forward.With wheel chassis frame fixed engine and carrier the nozzle,the nozzles were submerged in the water near the mud surface,using high pressure water jet to soil erosion,the lotus emerge from the water automatically.The computer simulation was used to calculate dig lotus root locomotive frame strength and rigidity,and results show that the strength conform to the conditions of use.At last,through the field records the related data in site test,the machine average speed was 1.63 m/min,the speed size was controlled by diesel engine throttle,the working width was 1.2 meters,the average efficiency was 122.25 m2/h,and the relative efficiency compared with the manual was increased by 3.5 times.Experiment result showed that the machine dig lotus root had high efficiency and good performance and achieved the goal.