【摘要】：全斷面硬巖掘進(jìn)機(jī)(Tunnel Boring Machine,簡(jiǎn)稱(chēng)TBM)是鐵路、公路、水利、市政建設(shè)等隧道施工的重大裝備,相對(duì)傳統(tǒng)的鉆爆法具有快速、優(yōu)質(zhì)、環(huán)保、安全等優(yōu)點(diǎn),已成為隧道施工的首選裝備。支撐-推進(jìn)-換步機(jī)構(gòu)是TBM實(shí)現(xiàn)連續(xù)循環(huán)作業(yè)的核心傳動(dòng)部件,對(duì)整機(jī)掘進(jìn)性能具有重要影響。本文在系統(tǒng)分析其機(jī)構(gòu)組成與工作原理的基礎(chǔ)上,研究了該機(jī)構(gòu)具有的拓?fù)浣Y(jié)構(gòu)特性,然后進(jìn)一步研究了機(jī)構(gòu)的運(yùn)動(dòng)傳遞特性,構(gòu)建了機(jī)構(gòu)靜力學(xué)分析模型,分析了關(guān)鍵構(gòu)件受力,最后進(jìn)行了機(jī)構(gòu)的虛擬樣機(jī)仿真。全文主要內(nèi)容如下:首先,系統(tǒng)分析了支撐-推進(jìn)-換步機(jī)構(gòu)的拓?fù)浣Y(jié)構(gòu)、液壓缸驅(qū)動(dòng)方式及工作原理,計(jì)算了不同作業(yè)工況機(jī)構(gòu)的自由度,研究了機(jī)構(gòu)的拓?fù)涮匦?構(gòu)建了不同工況時(shí)機(jī)構(gòu)的等效拓?fù)錁?gòu)型。然后,建立了機(jī)構(gòu)位置正逆解分析模型和在線調(diào)向(或軌跡糾偏)的運(yùn)動(dòng)學(xué)模型,推導(dǎo)出在線調(diào)向函數(shù),揭示出各驅(qū)動(dòng)油缸位姿參數(shù)與刀盤(pán)位姿間的映射規(guī)律,進(jìn)行了糾偏軌跡的規(guī)劃。其次,在構(gòu)件受力合理假設(shè)的前提下,建立了護(hù)盾靜力分析模型,研究了護(hù)盾處受力對(duì)鞍架、扭矩油缸和撐靴受力的影響規(guī)律;同時(shí),建立了支撐-推進(jìn)-換步系統(tǒng)受力分析模型,分別分析了主梁、主梁導(dǎo)軌、鞍架及撐靴的受力特點(diǎn),揭示出各驅(qū)動(dòng)油缸受力和刀盤(pán)外載間的映射關(guān)系。最后,應(yīng)用商用軟件Solidworks進(jìn)行了機(jī)構(gòu)三維實(shí)體建模和整機(jī)裝配,并通過(guò)機(jī)構(gòu)的運(yùn)動(dòng)仿真分析,驗(yàn)證了機(jī)構(gòu)運(yùn)動(dòng)的合理性,采用有限元方法進(jìn)行了機(jī)構(gòu)的應(yīng)力仿真,分析了機(jī)構(gòu)關(guān)鍵零部件受力,為物理樣機(jī)的設(shè)計(jì)提供一定借鑒。
[Abstract]:Full section hard rock tunneling machine (TBM) is a major equipment for tunnel construction, such as railway, highway, water conservancy, municipal construction and so on. Compared with the traditional drilling and blasting method, it has the advantages of fast, high quality, environmental protection and safety, etc. Has become the first choice of tunnel construction equipment. The brace-propulsive-step-changing mechanism is the core transmission component of TBM to realize the continuous cycle operation, which has an important influence on the driving performance of the whole machine. In this paper, based on the systematic analysis of the mechanism composition and working principle, the topological structure characteristics of the mechanism are studied, and then the kinematic transfer characteristics of the mechanism are further studied, and the statics analysis model of the mechanism is constructed. Finally, the virtual prototype simulation of the mechanism is carried out. The main contents of this paper are as follows: firstly, the topological structure, the driving mode and the working principle of the mechanism are analyzed, the degrees of freedom of the mechanism under different working conditions are calculated, and the topological characteristics of the mechanism are studied. The equivalent topological configuration of the mechanism is constructed under different working conditions. Then, the analysis model of forward and inverse solution of mechanism position and the kinematics model of on-line alignment (or trajectory correction) are established, and the on-line direction adjustment function is derived, and the mapping law between the position and attitude parameters of each driving oil cylinder and the position and pose of the cutter head is revealed. The program of correcting track is carried out. Secondly, the static analysis model of shield is established on the premise of reasonable force assumption, and the influence of shield force on saddle frame, torque cylinder and boot is studied. At the same time, the stress analysis model of brace-propulsive and step changing system is established, and the mechanical characteristics of main beam, main beam guide rail, saddle frame and brace boot are analyzed respectively, and the mapping relationship between the driving cylinder force and the external load of the cutter head is revealed. Finally, the three-dimensional solid modeling and assembly of the mechanism are carried out by using commercial software Solidworks, and the rationality of the mechanism motion is verified by the kinematic simulation analysis of the mechanism, and the stress simulation of the mechanism is carried out by using the finite element method. The force of the key parts of the mechanism is analyzed, which can be used for reference in the design of the physical prototype.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類(lèi)號(hào)】：U455.31

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 王凱;楊玉虎;黃田;牛文文;賀飛;;TBM支撐-推進(jìn)-換步機(jī)構(gòu)的拓?fù)浣Y(jié)構(gòu)及運(yùn)動(dòng)特性分析[J];浙江大學(xué)學(xué)報(bào)(工學(xué)版);2017年06期

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本文編號(hào)：2383390