平地机辅助工作装置设计.doc

摘要 平地机是一种高速、高效、高精度和多用途的土方工程机械广泛用于公路、机场等大面积的地面平整作业。它可以完成公路重要内容场、农田等大面积的地面平整和挖沟、刮坡、推土、排雪、疏松、压实、布料、拌和、助装和开荒等工作。是国防工程、矿山建设、道路修筑、水利建设和农田改良等施工中的重要设备。自20世纪20年代起，在近80年的发展历程中，平地机经历了低速到高速、小型到大型、机械操纵到液压操纵、机械换挡到动力换挡、机械转向 到液压助力转向再到全液压转向以及整体机架到铲接机架的发展过程。整机可靠性、耐久性、安全性和舒适性都有了很大的提高。 关键字：平地机 辅助工作装置 设计 ABSTRACT The ground machine is a kind of high speed, high efficiency, high precision and utility of earth-moving machinery, widely used in road, airport of large area such as the ground flat homework. It can complete highway important content field, the large area such as the ground flat farmland and dug trenches, slope scraping, earth-moving, platoon snow, loose, compaction, cloth, mixing, help put cultivation and etc. Is the defense engineering, mine construction, road construction, water conservancy construction and farmland improvement in the construction of vital equipment. Since the 1920 s, in nearly 80 years of development history, the ground machine experienced low speed to high speed, small to large, mechanical manoeuvring to hydraulic control, mechanical shift to power shift, mechanical steering to hydraulic power steering to hydraulic steering and overall frame by frame to shovel the development process. The reliability and durability, safety and comfort had the very big enhancement. The ground is mainly by the engine, transmission system, frame, walk device, work device and control systems. With reference to the design of existing some the ground machine products, and focuses on the ground of the auxiliary machine work device in the analysis and design, the main complete to the overall design of auxiliary equipment, to grasp the ground machine design methods and steps, consolidate and deepen our understanding of the basic theory and specialty knowledge learned of the master, understand the development situation of domestic and foreign the ground machine. Keywords: The ground machine auxiliary equipment design 第二章 绪论 1 1.1 平地机简介 1 1.2 平地机的历史及发展趋势 2 1.3 平地机的分类 3 1.4 平地机的总体