我厂在东方-75型拖拉机底盘基础上,研制成功了Z15型履带式装载机(见图1)。样机经过了四轮改进,由洛阳工学院对工作装置进行了静、动态强度测试,工程兵技术装备研究所进行了整机性能测试和近1000h作业考核,于1988年12月通过了洛阳市经委组织的技术鉴定。该机适合在泥泞、松软工地和矿山、碎石 Based on the East-75 tractor chassis, our factory successfully developed the Z15 crawler loader (see Figure 1). The prototype has undergone four rounds of improvement. The Luoyang Institute of Technology conducted static and dynamic strength tests on the working devices. The Engineering Technology and Equipment Research Institute of the Engineers performed overall performance tests and nearly 1000 hours of job evaluation. In December 1988, it passed the Luoyang Economic Commission. Technical appraisal. The machine is suitable for loach, soft construction sites and mines, gravel