我国工程机械产品在20世纪60年代以前基本上是仿制苏联的产品,例如单斗挖掘机、推土机都是机械传动,手动操纵,工作装置的动作都是由绞车带动钢丝绳来实现的。机器十分笨重,生产率低下,操作者劳动强度大,就连建筑机械理论的创始人顿波洛夫斯基先生的理论也是以机械传动为基础的。1963年日本在华展出了一台125A新型轮式装载机,展出结束后,当时的机械工业主管部门将该展出样机送给 China’s construction machinery products by the 1960s were basically imitation of the Soviet Union’s products, such as single-bucket excavators, bulldozers are mechanical transmission, manual control, work equipment movements are driven by winch wire rope to achieve. The machinery is heavy, the productivity is low, and the operator is labor-intensive. Even the theory of Mr. Dompolowski, founder of the theory of construction machinery, is based on mechanical transmission. Japan in Japan in 1963 exhibited a 125A new wheel loader, after the show, then the machinery industry authorities will be presented to the prototype