隨車起重機
摘要
載貨汽車隨車起重機是指安裝在汽車底盤上,在一定范圍內垂直提升和水平搬運重物的多動作起重機械，又稱隨車吊，屬于物料搬運機械，本文簡要介紹了載貨汽車隨車起重機的結構和特點。本文重點介紹了隨車起重機伸縮部分的設計，變幅結構的設計和上車液壓系統的設計�？傮w設計了隨車起重機的性能指標以及關于各臂伸縮的原理計算。并對隨車起重機的設計要點進行了簡要說明。
本次設計主要內容和要求：設計隨車起重機上車實現起重臂伸縮，變幅所需的上車液壓系統，計算選擇合適的泵，油缸及閥等液壓元件。其中，以臂的設計最為重要，對此作為重點考慮。設計出具有一定重量的隨車起重機完整的上車結構，繪制出上車裝配圖和每節臂的結構圖。設計出上車液壓系統，繪制上車液壓系統原理圖。通過分析和計算，確定每節臂的截面形狀及截面尺寸，設計每節臂的具體結構和臂之間的連接方式，設計整個起重臂伸縮方式。
關鍵詞：起重機伸縮臂、隨車起重機、液壓元件；
Abstract
This article is briefly introduced with the vehicle the hoist crane structure and the characteristic, the system design with the vehicle hoist crane performance index as well as the principle computation which has expanded and contracted about various arms. And it has carried on the briefing with the vehicle to the hoist crane design main point. This article is introduced with emphasis the hoist crane expands and contracts the partial designs with the vehicle, the amplitude structure design and boards the hydraulic system design.
This design main content and request: Designs has the certain weight the hoist crane integrity to board with the vehicle the structure, draws up boards the assembly drawing and each arm structure drawing. Designs boards the hydraulic system and the plan boards the hydraulic system schematic diagram. Through the analysis and the computation, I determined each arm the section size and the section shape, design each arm between the concrete structure and the arm connection way, the design entire erector beam book expansion and contraction way. And designs the hoist crane to board the realization erector beam to expand and contract with the vehicle, the amplitude must boards the hydraulic system, computation choice appropriate pumping, hydraulic pressure part and so on cylinder and valve Among them, thought especially the arm design is most important, regarding this I with emphasis considered.
Key words ： With the vehicle hoist crane Expands and contracts the arm Hydraulic pressure part
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