本科毕业设计__机械矿石铲运机液压系统设计.doc

矿石铲运机液压系统设计 【摘要】 液压技术自18世纪末英国制成世界上第一台水压机算起，已有300年的历史了，但其真正的发展只是在第二次世界大战后50余年的时间内，战后液压技术迅速向民用工业，在机床，工程机械，农业机械，汽车等行业中逐步推广。本世纪60年代以来，随着原子能，空间技术，计算机技术的发展，液压技术得到了很大的发展，并渗透到各个工业领域中去。当前液压技术正向高压，高速，大功率，高效，低噪音，经久耐用，高度集成化的方向发展。 铲运机是一种能综合完成挖土、运土、卸土、填筑、整平的机械。按行走机构的不同可分为拖式铲运机和自行式铲运机。按铲运机的操作系统的不同，又可分为液压式和索式铲运机。铲运机操作灵活，不受地形限制，不需特设道路，生产效率高。 关 键 词Hydraulic technology from the late 18th century England made the worlds first hydraulic press date, more than 300 years of history, but its real development only after the Second World War more than 50 years after the war Hydraulic Technology rapidly to the civilian industry, in machine tools, engineering machinery, agricultural machinery, and automobile industries in stages. Since the 60s of this century, with the atomic energy, space technology, computer technology, hydraulic technology is a great deal of development and to penetrate into the field of various industrial go. Current technology are high-pressure hydraulic, high-speed, high power, high efficiency, low noise, durable, highly integrated direction. Scraper General are able to complete the excavation of a transported soil, dumping, filling, leveling machine. By walking mechanism can be divided into different scraper towed and self-propelled scraper. By scraper different operating systems, can be divided into hydraulic and cable-type scraper. Flexible scraper operation, free from topographical constraints, without ad hoc road, production and high efficiency. Key words: Hydraulic pressure technology Atomic energy carry-scraper 目 录 1.引言…………………………………………………………… 1.1液压传动的早期运用 ………………………………………………………… 1.2液压传动的应用范围的基本原理……………………………………………………………………………………… 2.液压系统的发展现状…………………………… 2.1 液压系统的发展趋势………………………………………………………… 3.液压传动系统的应用……………………………………… 3.1.液压原理定义……………………………………………… 3.1.4液压系统分类……………………………………………… 3.2.液压技术特点………………………………………… 3.3.液压技术的用途………………………………………… 4.液压系统的设计步骤和设计要求…………………………… 4.1液压系统的设计步骤和设计要求……………………………………………………… 4.1.1设计步骤…………………………………… 4.1.2明确设计要求…………………………