ISO 8643:2024 土方机械 液压挖掘机和挖掘装载机下降控制装置 要求和试验

标准编号：ISO 8643:2024

中文名称：土方机械 液压挖掘机和挖掘装载机下降控制装置 要求和试验

英文名称：Earth-moving machinery — Hydraulic excavator and backhoe loader lowering control device — Requirements and tests

发布日期：2024-05

标准范围

本文件规定了安装在液压挖掘机和挖掘装载机的动臂、中间动臂和臂缸上的下降控制装置的统一要求和测试程序，以控制液压管路故障或破裂时的下降速度。适用于液压挖掘机的下降控制装置和用于搬运物体的挖掘装载机的反铲设备，这些设备配有制造商定义的标准连杆。在提供替代连杆组合的机器上，仅测试制造商定义的标准长度。

This document establishes uniform requirements and test procedures for lowering control devices fitted on the boom, intermediate boom and arm cylinders of hydraulic excavators and backhoe loaders to control the rate of drop in the case of a hydraulic line failure or rupture.

It is applicable to the lowering control devices of hydraulic excavators and the backhoe equipment of backhoe loaders used for object handling which are equipped with the standard linkage as defined by the manufacturer. On machines where alternative linkage combinations are offered, only the standard length defined by the manufacturer is subject to testing.

标准预览图