TBM盘形滚刀磨损速率研究  

Analysis of wear rate of TBM disc cutter

作　　者：谭青[1,2] 谢吕坚 夏毅敏[1,2] 朱震寰[1] 孙鑫键 王艳宜[3] 

机构地区：[1]中南大学机电工程学院,湖南长沙410083 [2]中南大学高性能复杂制造国家重点实验室,湖南长沙410083 [3]常德职业技术学院工程系,湖南常德415000

出　　处：《中南大学学报（自然科学版）》2015年第3期843-848,共6页Journal of Central South University:Science and Technology

基　　金：国家重点基础研究发展计划(973计划)项目(2013CB035401);国家自然科学基金资助项目(51274252);湖南省战略新兴产业重大科技攻关项目(2012GK4068)~~

摘　　要：建立考虑接触力和相对滑动速度的滚刀磨损速率模型,在此基础上分析贯入度、刀圈半径变化以及安装半径对滚刀磨损速率的影响,并利用微元法对盘形滚刀的磨损寿命预估方法进行研究,最后进行工程实例验证。研究结果表明:滚刀点磨损速率最大点在最大切深点与破岩前锋点之间;滚刀磨损速率随滚刀安装半径呈线性增大;滚刀磨损速率随贯入度的增大而增大,随滚刀半径减小而增大;贯入度、刀具半径和刀具安装半径三者中贯入度对滚刀磨损速率作用最大。The wear rate of tunnel boring machine （TBM） disc cutter based on contact pressure and relative slide velocity was built. Then the effect of penetration, cutter radius change and installation radius on disc cutter wear rate was researched, and the prediction method of disc cutter＇s lifetime was studied. The conclusion was proved by engineering practice. The results show that the point with the maximum wear rate is between the deepest penetration point and breaking forward point. The wear rate of disc cutter increases almost linearly with the installation radius, and it increases with the increase of penetration and the decrease of disc cutter radius, and penetration is the most influential factor of wear rate of disc cutter.

关 键 词：盘形滚刀 磨损速率 贯入度 滚刀半径 安装半径 磨损寿命 

分 类 号：TH117.1[机械工程—机械设计及理论] U455.3[建筑科学—桥梁与隧道工程]