深海油压动力源关键部件的研究

发布时间：2017-12-27 10:21

本文关键词：深海油压动力源关键部件的研究　出处：《西南交通大学》2015年硕士论文　论文类型：学位论文

【摘要】：全球有超过70%的面积被海洋覆盖,随着全球经济现代化发展,人们对资源的需求与日俱增,但是陆地上的石油、天然气、煤炭等能源却越来越少,这就促使人们将目光转向资源丰富的海洋。据1995年估计,世界近海已探明的石油资源储量为379亿吨,天然气的储量为39万亿立方米,海底蕴藏的油气资源储量约占全球油气储量的1/3。所以,探索海洋对我国乃至全世界其他国家来说刻不容缓。本文以给深海探测器提供动力的液压动力源为研究分析对象,研究了动力源的结构以及动力源的传动联接系统。结构方面,本着轻量化的设计理念,液压泵及液压阀直接安装到油箱中(内置式),补偿器活塞通过油箱内壁定位,电机与液压泵共用端盖。传动方面,为了节约空间并保证动力源传动的可靠性,电机与液压泵之间采用渐开线花键进行传动,并从接触强度的角度对花键的对中及不对中传动进行分析,得出了花键接触面的应力分布情况。本文主要包括以下三部分内容：1.结合国内外对深海设备的相关研究,介绍了本文涉及的深海集成油压动力源的结构布局以及其补偿器、液压泵、电机的选型情况,并对电机的功率、液压泵流量、补偿器的补偿量、及传动轴的搅油损失进行校核。以6kW系列动力源为例,对动力源的渐开线花键进行选型,并对所选花键进行理论应力校核。2.动力源对中传动时,通过对花键传动的接触分析得出花键传动的接触应力、摩擦剪切应力、法向穿透距离以及切向滑移的分布规律。同时研究了轴向接触长度、法向刚度系数以及切向摩擦系数三个因素对花键传动特性的影响,分析得出花键传动最佳轴向接触长度,并给出了刚度系数和摩擦系数的选择范围。3.动力源不对中传动时,分析了平行不对中及角向不对中对花键传动特性的影响,得出了能够有效控制花键传动应力的不对中量大小,为动力源传动的故障检测提供参照。
[Abstract]:More than 70% of the world's total area is covered by the ocean. With the development of the global economic modernization, people's demand for resources is increasing. However, the energy, such as oil, natural gas, coal and so on, is less and less, which makes people turn to the ocean with abundant resources. According to the estimation in 1995, the proven offshore oil reserves in the world are 379 billion tons, and the reserves of natural gas are 39 trillion cubic meters. The reserves of oil and gas resources on the seabed account for about 1/3 of the global oil and gas reserves. Therefore, the exploration of the ocean is of great urgency to our country and to the rest of the world. This paper studies the structure of the power source and the transmission connection system of the power source, taking the hydraulic power source which provides the power of the deep-sea detector as the research object. In terms of structure, based on lightweight design concept, hydraulic pump and hydraulic valve are directly installed into the tank (built-in type). The compensator piston is positioned through the inner wall of the fuel tank, and the motor and hydraulic pump share the end cover. The transmission, in order to save space and ensure the reliability of power transmission, the motor and hydraulic pump adopts involute spline transmission, and from the angle of the contact strength of the spline transmission and misalignment are analyzed, the contact stress distribution of the spline. This paper mainly includes the following three parts: 1. based on the related research on deep-sea equipment at home and abroad, introduces the structure and layout of the integrated deep-sea oil pressure power source and selection of the compensator, hydraulic pump, motor, and the motor power, hydraulic pump, flow compensator compensation, and the transmission shaft stirring oil loss of check. Taking the 6kW series of power sources as an example, the selection of the involute spline of the power source is selected and the theoretical stress of the selected spline is checked. 2., when the power source is in the middle drive, the contact stress, frictional shear stress, normal penetration distance and tangential slip distribution of spline drive are obtained through contact analysis of spline transmission. At the same time, the influence of three factors, including axial contact length, normal stiffness coefficient and tangential friction coefficient, on the transmission characteristics of spline is studied. The optimum axial contact length of spline drive is analyzed, and the selection range of stiffness coefficient and friction coefficient is given. 3., when the power source is misalignment, the influence of parallel misalignment and angular misalignment on the transmission characteristics of spline is analyzed, and the size of the misalignment size that can effectively control the stress of spline transmission is obtained, which provides a reference for fault detection of power source transmission.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P715.5

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