【摘要】：輪胎壓路機(jī)是一種主要依靠自重、通過特制充氣輪胎對所需壓實(shí)的鋪層材料進(jìn)行靜力碾壓的機(jī)械,可用于各種材料的基礎(chǔ)層、次基礎(chǔ)層、填方及瀝青面層的壓實(shí)。近年來,隨著道路施工質(zhì)量要求的不斷提高,尤其是表層質(zhì)量要求的提高,全液壓輪胎壓路機(jī)以其良好的面層壓實(shí)性能得到了越來越廣泛的關(guān)注和應(yīng)用。輪胎壓路機(jī)在作業(yè)過程中,如果未采取適當(dāng)?shù)目刂拼胧?起步和停車的慣性負(fù)載會(huì)帶來路面推移、擁包及壓實(shí)不均勻等問題,嚴(yán)重影響了作業(yè)質(zhì)量。因此對輪胎壓路機(jī)關(guān)鍵控制技術(shù)進(jìn)行研究,對提高整機(jī)性能及作業(yè)質(zhì)量具有重要意義。本文主要對26t全液壓輪胎壓路機(jī)的關(guān)鍵控制技術(shù)進(jìn)行了研究。在對機(jī)器工作原理及作業(yè)工況分析的基礎(chǔ)上,提出了輪胎壓路機(jī)控制系統(tǒng)的功能要求,確定了控制系統(tǒng)方案,完成了對控制器、操作手柄及顯示器等元件的選型,并對輸入輸出信號(hào)進(jìn)行了引腳分配;給出了行駛控制、極限載荷控制、慣性負(fù)載控制等關(guān)鍵技術(shù)的控制方法及控制流程;通過對慣性負(fù)載的組成及特性進(jìn)行理論分析和計(jì)算,得出了輪胎壓路機(jī)起步停車時(shí)峰值加速度(減速度)的大小,并根據(jù)工作經(jīng)驗(yàn),給出了整機(jī)作業(yè)時(shí)平均加速度(減速度)的大小;以AMESim和MATLAB/Simulink軟件為仿真平臺(tái),建立了全液壓輪胎壓路機(jī)行駛電液系統(tǒng)的仿真模型,主要對機(jī)器起步過程進(jìn)行了電液聯(lián)合仿真,驗(yàn)證了論文中控制方法的有效性。
[Abstract]:The tire roller is a kind of machine which mainly depends on self-weight and compacts the required lamination material by special inflatable tire. It can be used for compaction of base layer, secondary foundation layer, fill and asphalt surface layer of all kinds of materials. In recent years, with the continuous improvement of road construction quality requirements, especially the improvement of surface quality requirements, full hydraulic tire roller with its good surface compaction performance has been paid more and more attention and application. If the tire roller does not take proper control measures, the inertia load of starting and stopping will bring problems such as road moving, packing and compaction unevenness, which seriously affect the operation quality. Therefore, the research on the key control technology of tire roller is of great significance to improve the performance and working quality of tire roller. In this paper, the key control technology of 26 t full-hydraulic tire roller is studied. Based on the analysis of the working principle and working conditions of the machine, the functional requirements of the control system of the tire roller are put forward, the control system scheme is determined, and the selection of the controller, the operating handle and the display is completed. The input and output signals are allocated with pins. The control methods and control flow of driving control, limit load control, inertial load control and other key technologies are given. Through the theoretical analysis and calculation of the composition and characteristics of the inertial load, the magnitude of the peak acceleration (deceleration) of the tire roller when it starts to stop is obtained, and according to the working experience, The average acceleration (deceleration) of the whole machine is given. Using AMESim and MATLAB/Simulink software as the simulation platform, the simulation model of the driving electro-hydraulic system of the hydraulic tyre roller is established. The electro-hydraulic joint simulation of the starting process of the machine is carried out, and the effectiveness of the control method in the paper is verified.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U415.521

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本文編號(hào)：2397358