1983年佳木斯联合收割机总厂利用美国约翰迪尔公司的引进技术,为 E512型联合收割机改装半履带行走装置,大大提高了该机的通过性。该联合收割机下水田收获水稻、在泥泞地段收获麦类作物,效果良好,受到农场的好评。图1是 E512型联合收割机半履带行走装置改装示意图。半履带行走装置有左右两个台车,其结构见 In 1983, Jiamusi Combine Harvester Plant utilized the introduction technology of John Deere Company of the United States to retrofit the semi-tracked walking device for the E512 combine harvester, which greatly enhanced the aircraft’s passing ability. The combine harvester paddy fields harvest rice, harvesting wheat crops in muddy areas, the effect is good, by the farm’s praise. Figure 1 is E512-type combine harvester crawler walking device modification diagram. Half crawler walking device has about two trolleys, the structure see