土方机械 反铲型和抓爪型液压挖掘机铲斗和挖掘装载机铲斗的额定容量

[中文适用范围]： 本标准规定了液压挖掘机和挖掘装载机的反铲斗和抓铲斗(见圈1)所能盛装的典型物料容量的近 似标定方法。容量标定是按照铲斗内壁尺寸和堆尖物料体积而确定的。 铲斗容量的标定方法是把装在铲斗内的物料作为集合体分成若干简单的几何形状。 本标准的目的在于提供一个统一的比较铲斗容量的标定方法，而不是为了在各种使用场合下确定 实际铲斗容量。 本标准不适用于机械挖掘机的铲斗。 [外文原描述]： ISO 7451:2007 specifies a method for estimating the volume of materials which a hoe-type or grab-type bucket of a hydraulic excavator or backhoe loader can normally contain. The volume assessments are based on the internal dimensions of the bucket and on the representative volumes at the top of the bucket. The method employs the technique of dividing the complex shape of the material in the bucket into simple geometric shapes. This method of assessment is intended to provide a conventional means of comparing bucket capacities. It is not intended to be used to define true capacities.