本文選題：路面冷銑刨機　切入點：自適應控制　出處：《長安大學》2015年碩士論文　論文類型：學位論文

【摘要】：本文從國內(nèi)外銑刨機電控系統(tǒng)的現(xiàn)狀及存在的問題入手,結(jié)合徐工XM220冷銑刨機項目,分析銑刨機控制系統(tǒng)的組成與各部分功能。文章采用一個電比例變量泵+四個液控比例變量馬達的形式,泵和馬達排量無級調(diào)節(jié),實現(xiàn)行走速度無級可調(diào),能夠最大限度滿足施工速度需求。對風扇冷卻控制系統(tǒng)進行研究,風扇的轉(zhuǎn)速由發(fā)動機水溫、液壓油溫、中冷溫等實現(xiàn)閉環(huán)控制,使系統(tǒng)一直處于比較理想的狀態(tài)下工作。為實現(xiàn)防打滑控制,在行走泵和行走馬達之間設(shè)置一個四路分流閥,利用分流控制閥切換分流閥的三個工位(自由輪、粗分和精分),實現(xiàn)四履帶之間的同步驅(qū)動和防滑。對銑刨機電控系統(tǒng)的核心技術(shù)——行走系統(tǒng)和轉(zhuǎn)子系統(tǒng)功率自適應控制重點研究,針對輕載和重載兩種情況,通過調(diào)節(jié)發(fā)動機轉(zhuǎn)速及發(fā)動機油門開度,滿足在極端惡劣工況下,對發(fā)動機功率合理的分配利用。本文在不改變現(xiàn)有手動操作方式的前提下,采用無線遙控系統(tǒng)對銑刨機在0—200米的距離內(nèi)進行遙控,以達到無人駕駛完成銑刨路面作業(yè)的目的,提高銑刨作業(yè)的工作效率、自動化水平和可操作性,充分發(fā)揮整機的作業(yè)性能。最后給出了冷銑刨機控制系統(tǒng)的硬件、軟件設(shè)計框架及部分控制程序。
[Abstract]:This paper starts with the current situation and existing problems of the electric control system of milling machine at home and abroad, and combines the project of Xugong XM220 cold milling planer. This paper analyzes the composition and functions of the control system of milling machine. The paper adopts the form of four hydraulic proportional variable motors with one electric proportional variable pump, the displacement of pump and motor is adjusted stepless, and the walking speed is stepless and adjustable. The fan cooling control system is studied. The fan speed is controlled by the engine water temperature, hydraulic oil temperature, intercooling temperature and so on. In order to realize the anti-skid control, a four-way shunt valve is set up between the walking pump and the walking motor, and the three stations of the shunt valve (free wheel) are switched by using the shunt control valve. In order to realize synchronous drive and anti-skid between four tracks, the main technology of the electric control system of milling machine, walking system and rotor system power adaptive control, is studied, aiming at two situations of light load and heavy load. By adjusting engine speed and engine throttle opening degree, the engine power can be reasonably distributed and utilized under extremely bad working conditions. The wireless remote control system is used to control the milling machine within a distance of 0-200 meters, so as to achieve the goal of self-driving, improve the working efficiency, automation level and maneuverability of the milling planer. Finally, the hardware and software design framework and some control programs of the control system of cold milling planer are given.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U418.32

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本文編號：1624108