本文選題：養(yǎng)護車 + 瀝青路面　； 參考：《長安大學》2014年碩士論文

【摘要】：二十一世紀以來，，我國高等級瀝青道路建設事業(yè)進入飛速發(fā)展階段，然而路面的養(yǎng)護技術和設備制約著瀝青路面進一步發(fā)展。本文結合某省重點科技計劃項目“熱帶季風多雨區(qū)高等級公路保暢快速修復成套技術研究”，提出子課題“瀝青路面多功能綜合養(yǎng)護車設計與研究”。旨在研發(fā)一種以冷修補為技術特征，能夠進行高質量、快速修復的瀝青路面小型多功能綜合養(yǎng)護車以及現場快速修復施工工藝，并形成成套技術，實現瀝青路面快速修復。 本文根據路面養(yǎng)護車的設計原則，對瀝青路面多功能綜合養(yǎng)護車進行了結構設計和零部件選型設計，使瀝青路面多功能綜合養(yǎng)護車集切割、挖掘、破碎、攪拌、壓實功能于一體。在結構設計的基礎上，校核了空載、滿載狀態(tài)下，包括載荷分配、操作穩(wěn)定性、行駛穩(wěn)定性在內的多項性能指標，規(guī)定了整車行駛速度應限制在100km/h內。并針對以最大挖掘半徑向后挖掘、以最大挖掘半徑側面挖掘、單斗受力三種極限工況下，關鍵部件的有限元分析，驗證了各工況下關鍵部件都處于安全范圍內，且整車安全系數分別達到1.797、1.547、2.8。 本文通過運動學仿真獲得了挖掘裝置活動的包絡曲線和有效挖掘范圍包絡曲線；同時獲得了挖掘裝置有效工作時的最大挖掘半徑、最大卸料高度、最大挖掘深度等關鍵性能數據；并提出了將各狀態(tài)下液壓缸的伸長量測量記錄下來，載入數據庫，用于挖掘裝置實現自動化作業(yè)的方案。通過動力學仿真，模擬了挖掘裝置以最大挖掘半徑挖掘和單斗受力兩種狀態(tài)下，挖掘機底架與車架連接處轉矩的變化曲線，曲線顯示：此關鍵部位受載基本對稱，底架、車架和螺栓等部件受力均勻。
[Abstract]:Since the 21 century, the construction of high grade asphalt road in China has entered a rapid development stage. However, the maintenance technology and equipment of the pavement restrict the further development of the asphalt pavement. In this paper, according to the key scientific and technological project of a province, "study on the complete set of techniques for the maintenance and fast restoration of high grade highway in tropical monsoon and rainy area", a sub-project "Design and Research of Asphalt pavement Multi-Functional Comprehensive maintenance vehicle" is put forward in this paper. The purpose of this paper is to develop a kind of small multi-function comprehensive maintenance vehicle with high quality and quick repair, and to form a complete set of technology, which is characterized by cold repair, and can be used to repair asphalt pavement quickly. According to the design principle of pavement maintenance vehicle, the structure design and parts selection design of asphalt pavement multi-function comprehensive maintenance vehicle are carried out in this paper, so that the asphalt pavement multi-function comprehensive maintenance vehicle can be cut and excavated. Crushing, stirring, compacting function in one. On the basis of the structural design, several performance indexes, including load distribution, operation stability and driving stability, are checked under the condition of no-load and full-load, and the driving speed of the whole vehicle should be limited to 100km/h. According to the finite element analysis of the key parts under the three limit conditions of the maximum excavation radius backward excavation, the maximum excavation radius side excavation and the single bucket loading, it is verified that the key components are in the safe range under each working condition. And the safety factor of the whole vehicle is 1.797 / 1.547 / 2.8.The envelope curve and the effective range envelope curve of the excavating device are obtained by kinematics simulation, and the maximum excavating radius and the maximum unloading height are obtained when the excavating device is working effectively. The key performance data such as maximum mining depth and so on are put forward, and the measure of hydraulic cylinder elongation under different states is recorded and loaded into database, which can be used to realize automatic operation of excavating device. By means of dynamic simulation, the curve of torque variation at the joint of excavator underframe and frame is simulated under the condition of excavating device with maximum excavation radius and single bucket force. The curve shows that the load of this key position is basically symmetrical, the underframe is basically symmetrical, The parts such as frame and bolt are subjected to uniform force.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：U418.3

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本文編號：2007146