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一、大型液压挖掘机的发展概况 1978年以来,在短短的数年时间里,大型矿用液压挖掘机以惊人的速度发展起来(图中示出了世界上液压挖掘机大型化发展的情况。到目前为止,100吨级以上的液压挖掘机至少有24种型号,其中,两种最大的约500吨重;约200吨重的有3种;15O～190吨重的有8种;其余的100～150吨重。美国制造有7种,西德制造有8种日本制造有4种,苏联制造有2种,法国制造有2种,罗马尼亚制造有1种(见表)。
First, the development overview of large hydraulic excavator Since 1978, in just a few years time, large-scale mining hydraulic excavator developed at an alarming rate (the figure shows the world’s hydraulic excavator large-scale development So far, there are at least 24 models of hydraulic excavators with a capacity of over 100 tons, of which the two are about 500 tons at the maximum, 3 are about 200 tons, 8 are from 15 to 190 tons, Of 100 to 150 tons.It has seven kinds in the United States, eight in Japan, four in Japan, two in the Soviet Union, two in France and one in Romania (see table).