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轮胎式挖掘机的机重与桥荷是两个相互关联的参数。按一般规律,机重增加,桥荷自然增大。以往,对于只有两只桥的轮胎式挖掘机仅考虑轮胎的承载能力和整机的行驶、作业稳定性方面的要求,忽略了桥荷受公路使驶条件限制的问题。国外轮胎式挖掘机的机重多为21吨级。如利勃赫尔(Libherr)公司的A922,奥科(O&K)公司的MH6,阿托拉斯(Atlas)公司的1702,波克兰(Poclain)公司的115P等型号挖掘机机重分别为19.7～20.9t,18.1～19.3t,21t。这些机种的配套动力装置多为Doutz F6L912
The weight of the wheel excavator and the axle load are two related parameters. According to the general law, the machine weight increases and the bridge load naturally increases. In the past, the tire-type excavator with only two bridges only considered the tire’s load-bearing capacity, the requirements for the entire vehicle’s running and operation stability, and ignored the problem of the bridge load being restricted by the driving conditions of the road. The weight of foreign tire excavators is mostly 21 tons. Such as Liebherr’s A922, O&K’s MH6, Atlas’s 1702, and Poclain’s 115P, etc., excavator weights are 19.7 to 20.9, respectively. t, 18.1 to 19.3t, 21t. Most of the power devices for these models are Doutz F6L912