Abstract: In order to realize the large-span cable transmission for different operation platforms, aimed at high-step cable volume-released device, the key technology of the cable volume-released device, scissor type telescopic boom and control system are analyzed. The device can realize the volume-released cable under flat ground and high step conditions. The scissor type boom is made of strength aluminum alloy material, of which the arm is installed a hydraulic cylinder properly to assist in the expansion arm operation. Load analysis, overturning moment and counterweight analysis of the scissor type boom are researched. Finite element analysis of the scissor type boom indicates that its maximum stress is 149 MPa, less than the allowable stress of the material, complying with the design requirement. The boom extension of 50 meters is considered as the maximum overturning moment, and the counterweight of 10 t is used as the normal counterweight of the whole machine. It can provide reference for design of the similar high-step cable volume-released device.

Key words: High-step; Scissor type; Telescopic boom; Cable volume-released device

摘要： 为实现不同作业平台大跨度电缆输送，论文以高台阶电缆收放装置为研究对象，对电 缆卷盘的收放装置、剪叉式伸缩臂及控制系统等关键技术进行了分析，其可实现平地和高台 阶工况下电缆收放。剪叉式伸缩臂采用强度铝合金材料，在臂内部适当的位置安装液压油缸 以辅助伸缩臂作业，并对剪叉式伸缩臂开展了载荷分析、倾覆力矩与配重分析。通过有限元 分析表明，伸缩臂的最大应力为 149 MPa，小于材料的许用应力，符合设计要求。考虑臂长 伸展 50 m 作业时刻作为最大倾覆力矩，选择 10 t 的配重作为整机常载配重。研究结果可为同 类高台阶电缆收放装置的研发设计提供参考。

关键词: 高台阶；剪叉式；伸缩臂；电缆收放装置