盾构机刀具刀盘的失效形式分析及预防措施机械专业毕业设计.doc

毕业设计文件 设计题目：盾构机刀具刀盘的失效形式分析及预防措施 摘要：近年来，随着科学与技术的不断发展，人们对空间需求已经从地上逐步发展到地下，开发利用地下空间最主要的工具就是隧道挖掘机。盾构机是一种专门用于开挖地下隧道的大型成套施工设备，在城市隧道的开挖中得到越来越广泛的应用。刀具作为盾构机上最重要的部件，国内对它的设计研究尚处起步阶段。而刀盘是全断面隧道掘进机的设计关键，是影响其掘进性能的决定性因素。本论文对盾构机刀具和刀盘的选型以及失效形式分析及预防措施进行了研究，具体内容如下：研究了刀具的形式及配置分析，详细的阐述了刀具的磨损与耐用度，分析了刀具的失效形式与管理。并对刀盘的型式、结构、功能与失效形式及预防措施进行了分析。 关键词： 刀具 刀盘 失效形式 刀具磨损 Abstract：In recent yeas,with scientific and technical progress,people’s demand for spacehas been gradually developed from the ground to underground,the most importanttool to exploit and utilize underground space is shield machine. The shield machine is one kind uses in excavating the underground tunnel specially the large-scale complete set construction，Excavates in the city tunnel obtains the more and more widespread application. The cutting tool takes on the shield machine most important part, Domestic to its design research still place start stage. However,Being acrucial factor in influencing the performance of shield machine，the cutterhead designis one of the key issues of shield machine. The present paper has conducted the research to the shield machine cutting tool and the cutter head shaping as well as the expiration form analysis and the preventive measure, The concrete content is as follows: Has studied the cutting tool form and the disposition analysis, Detailed elaboration cutting tool attrition and abrasive resistance, Has analyzed the cutting tool expiration form and the management. Has analyzed the cutting tool expiration form and the management.And to the cutter head pattern, the structure, the function and the expiration form and the preventive measure has carried on the analysis. key words：Cutting toolcutter-head Failure forms Cutting tool at 目 录 前言 1 1盾构机刀具的失效形式分析及预防措施 3 1.1盾构机的介绍 3 1.2盾构机刀具的管理与维护 4 1.2.1刀具的配置 4 1.2.2刀具管理的主要内容 6 1.2.3延长盾构机刀具使用寿命的措施 8 1.3刀具的失效分类与刀具分布 9 1.3.1刀具失效的分类 9 1.3.2各种位置上刀具的分布情况 10 1.4刀具失效的原因分析 10 1.5预防刀具失效的技术措施 12 1.6本章小结 12 2盾构机刀具磨损及耐用度分析研究 13 2.1刀具磨损问题 13 2.2滚刀磨损状况和磨损