【摘要】：海底犁式挖溝機(jī)是一種挖溝埋管水下作業(yè)機(jī)械，，廣泛應(yīng)用于海底油氣管道工程，用于保護(hù)海底管線。本課題來源于中國(guó)海洋石油工程公司的“硬質(zhì)粘土挖溝技術(shù)與裝備研究”項(xiàng)目，目的是研制出具有自主知識(shí)產(chǎn)權(quán)的用于海底開溝埋管的犁式挖溝機(jī)。 本文首先介紹了海底挖溝方法及國(guó)內(nèi)外挖溝機(jī)械研究現(xiàn)狀，根據(jù)犁式挖溝機(jī)工作原理及設(shè)計(jì)指標(biāo)建立了整機(jī)ADAMS虛擬樣機(jī)，通過仿真分析明確了整機(jī)的受力情況，并為后續(xù)關(guān)鍵結(jié)構(gòu)設(shè)計(jì)提供了理論依據(jù)。在此基礎(chǔ)上，首先完成了行走機(jī)構(gòu)的設(shè)計(jì)，研究了不同情況下滑靴底板的下陷深度及滑靴升降速度對(duì)管道受力的影響；其次完成了轉(zhuǎn)向機(jī)構(gòu)與拖拽纜繩的設(shè)計(jì)，確定了拖拽纜繩繩長(zhǎng)，并通過仿真得出不同拖拽力大小及繩長(zhǎng)對(duì)拖拽纜繩懸垂?fàn)顟B(tài)的影響，同時(shí)完成對(duì)轉(zhuǎn)向臂疲勞強(qiáng)度的校核；最后完成了具有自鎖功能的吊具結(jié)構(gòu)設(shè)計(jì)，分析了錐形斗結(jié)構(gòu)尺寸對(duì)其導(dǎo)向作用的影響，同時(shí)仿真分析了吊具的工作狀態(tài)，對(duì)其可靠性進(jìn)行了評(píng)估。 本文的研究與設(shè)計(jì)工作，是海底犁式挖溝機(jī)工程樣機(jī)研制的一部分，其仿真分析的結(jié)果對(duì)整機(jī)的設(shè)計(jì)具有重要的實(shí)際意義。
[Abstract]:Submarine ploughing machine is a kind of underwater working machine which is widely used in submarine oil and gas pipeline engineering and is used to protect submarine pipeline. This subject comes from the project of "Research on Technology and equipment of hard Clay digging ditch" of China National Offshore Oil Engineering Company. The purpose of this project is to develop a plough trench excavator with independent intellectual property rights used for digging and burying pipes under the sea floor. Firstly, this paper introduces the method of digging trench and the research status of trench digging machine at home and abroad. According to the working principle and design index of plough trench excavator, the ADAMS virtual prototype of the whole machine is established, and the mechanical condition of the whole machine is determined by simulation analysis. It also provides the theoretical basis for the subsequent key structure design. On this basis, first of all, the design of walking mechanism is completed, and the influence of the subsidence depth of skidding boot floor and the speed of slide boot lifting on the stress of pipeline is studied, and the design of steering mechanism and towing cable is completed. The length of towing rope is determined, and the effects of different drag force and rope length on the drag-rope drag-down state are obtained by simulation. At the same time, the fatigue strength of steering arm is checked. Finally, the structure design of hoist with self-locking function is completed. The influence of conical bucket structure size on its guiding action is analyzed, and the working state of the crane is simulated and its reliability is evaluated. The research and design work of this paper is a part of the prototype development of submarine plough trench excavator. The results of simulation analysis are of great practical significance to the design of the whole machine.
【學(xué)位授予單位】：哈爾濱工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TE973;P756.2

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