盾构机刀盘平面度检测方法的研究

发布时间：2018-05-17 00:35

本文选题：盾构机刀盘 + 水准仪　；参考：《大连理工大学》2014年硕士论文

【摘要】：盾构机,全名全断面隧道掘进机,是目前最为先进、在国内外应用最为广泛的隧道施工装备。盾构机主要由刀盘、主轴承、推进油缸、压力仓、输送机、管片安装机、闸门、作业台车、管片吊机、皮带输送机等部分组成,刀盘是盾构机设计和制造的核心部件之一。本文分析了盾构机及技术的发展现状,从大尺寸工件平面度检测的理论和方法入手,以大量的实际工作经验和检测数据为基础,开展了对盾构机刀盘平面度检测原理、技术条件、误差分析及不确定度评定等方面的研究。针对盾构机刀盘在加工阶段以及装配过程中的平面度检测工作的难点,选择适合的平面度检测仪器；并据此建立起行之有效的盾构机刀盘平面度检测方法；提出了盾构机刀盘平面度误差分析与误差计算的更为精确的方案；并且建立数学模型,对盾构机刀盘平面度测量误差进行了详细系统的不确定度评定。最终制定了一套较为完整的盾构机刀盘平面度检测方法。通过本文的研究,使用水准仪对盾构机刀盘平面度进行检测,并结合最小二乘法评定其平面度误差,可直观的反映出整个刀盘受力分布情况,并对刀盘的强度和整体刚度从计量角度作出客观评定,确保刀盘在加工和装配过程中及时进行工艺调整,从而间接保证盾构机的掘进速度、工作寿命以及整个工程的施工质量；为企业在该项工作上形成企业及行业标准提供了技术支持,为细化制造工艺要求、提高国产盾构机产品质量奠定了工艺技术基础。
[Abstract]:Shield machine, full-section tunneling machine, is the most advanced and widely used tunnel construction equipment at home and abroad. The shield machine is mainly composed of cutter head, main bearing, propelling oil cylinder, pressure chamber, conveyer, segment mounting machine, gate, working table car, segment crane, belt conveyor and so on. The shield head is one of the core parts in the design and manufacture of the shield machine. This paper analyzes the development of shield machine and its technology, starting with the theory and method of large size workpiece flatness detection, based on a large number of practical work experience and testing data, the principle of shield machine cutter head flatness detection is carried out. Technical condition, error analysis and uncertainty evaluation. In view of the difficulties in the flatness detection of the cutter head of shield machine in the process of machining and assembly, the suitable flatness testing instrument is selected, and an effective method for detecting the flatness of cutter head of shield machine is established. A more accurate scheme for the analysis and calculation of the flatness error of the cutter head of shield machine is put forward, and the mathematical model is established to evaluate the uncertainty of the measurement error of the cutter head of shield machine in detail. Finally, a complete method of measuring the flatness of shield cutter head is established. Through the research in this paper, the flatness of the cutter head of shield machine is measured by the level instrument, and the flatness error is evaluated by the least square method, which can directly reflect the distribution of the force on the whole cutter head. The strength and overall stiffness of the cutter head are evaluated objectively from the angle of measurement to ensure the timely technological adjustment of the cutter head in the process of machining and assembling, thus indirectly ensuring the tunneling speed, working life and the construction quality of the whole project. It provides technical support for enterprises to form enterprise and industry standards in this work, and lays a technological foundation for refining manufacturing process requirements and improving the quality of domestic shield machine products.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455.39

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