履带式苎麻联合收割机的设计与试验

Design and experiment of crawler ramie combine harvester

针对国内苎麻种植特点,在已有设计研究的基础上研制了一种适合于中国苎麻主产区收获作业的履带式苎麻收割机。整机侧向配置,采用半喂入稻麦联合收获机底盘,并配有液压无级变速系统,作业组件包括分禾装置、扶禾装置、割刀传动装置、横向输送装置、纵向强制输送装置和集秆箱等。该机采用双动刀切割装置结合三组链条输送器夹持输送,提高了整机的作业质量和稳定性。通过田间试验表明:切割率可到达93.5%,输送率可到达85.6%,平均生产率为0.94hm2/h,各项性能指标均到达设计要求。

According to the characteristics of domestic ramie cultivation and original design experience,crawler ramie combine harvester was developed which is suitable for main ramie producing areas in China.The combine body was configured on the side position of the chassis.It employed the chassis of head-feed rice and wheat combine,and equipped with hydraulic continuously variable transmission system,The main working parts contained the devices for stalk dividing,stalk lifting,cutting knife transmission,transverse conveying,longitudinal force conveying,as well as the ramie collecting system,etc.The machine adopts double knife cutting device combining with three group chain clamping delivery,improve the overall quality and stability.The combine performanec testing could be known as: cutting rate can reach 93.5%,delivery rate can reach 85.6%,and average throughput of 0.94hm2·h-1,ramie combine harvester had complied with the design requirement.