履带式起重机构造、原理.doc

履带式起重机构造、原理
摘要:履带起重机是广泛应用于国民经济各领域的一种起重设备,国内在大吨位产品的自主开发方面还是个空白,目前仅有两个厂家引进国外70年代末的技术有少量的生产,大部分市场还是由国外产品占领。履带起重机接地面积大,通过性好,适应性强,可带载行走,可进行挖土、夯土、打桩等多种作业。机动灵活,不象固定式起重机那样需要安装和调试。但因行走速度缓慢,转移工地需要其他车辆搬运。本文概述述了起重机的分类,简要说明了履带起重机的各个部分及其工作原理,详细介绍了履带起重机的回转,卷扬(提升),行走液压系统工作原理。
关键词:履带吊回转卷扬行走液压系统
The Principle Of Hydraulic System Of Crawler Crane
Abstract:In china there’s a blank in the development of the large crawler crane, which is a important device widely used in different fields. At present, only panies which introduce foreign technology of the end of 1970 product some crawler cranes and the most part of the market is in the hands of other countries. The crawler crane take a large area with ground, has a strong adaptability, can be widely used,and can go with a lifting , in addition,it can ekcacate,tamp,pile and so on. It’s more flexible, not need to be installed and adjusted. But it goes slowly, no wander it needs a car to help with it to go.
This paper simply show you the categories of crane, the principle of
different parts of the crawler crane. And it is detailed in the hydraulic systems of gyration, lifting, going.
Key words: crawler crane 、gyration 、 lifting 、 going 、 hydraulic system
目录
1引言-----------------------------------------------------------------(4) 2工程起重机的分类-----------------------------------------------------(4)
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----------------------------------------------------(6) 3履带式起重机的组成----------------------------------------------------(7)
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