镶齿滚刀磨损寿命与破岩效率的多目标优化  

Multi-objective optimization of wear life and rock breaking efficiency of inserted hob

作　　者：黄鸿颖 罗毅[1] 管会生[1] 江宁 HUANG Hongying;LUO Yi;GUAN Huisheng;JIANG Ning(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《中南大学学报(自然科学版)》2025年第3期1102-1112,共11页Journal of Central South University:Science and Technology

基　　金：国家重点研发计划项目(2021YFB3401503)。

摘　　要：在微风化花岗岩地层中盘形滚刀磨损严重,利用镶齿滚刀代替盘形滚刀进行破岩,需要保证镶齿滚刀拥有较长的磨损寿命及较高的破岩效率。为了解决这些问题,本文首先,建立镶齿滚刀破岩的受力模型和每环磨损量计算公式;然后,基于改进ACO算法的多级罚函数构建镶齿滚刀多目标优化模型;最后,以镶齿滚刀最小每环径向磨损量、最小破岩比能、最长破岩距离及掘进机最大掘进速度为优化目标,进行镶齿滚刀整体模型的多目标优化,得出较优的镶齿滚刀齿数、齿高和贯入度。研究结果表明:镶齿滚刀每环磨损量中塑性磨损和脆性磨损的占比较大;以某个指标作为镶齿滚刀的单目标优化函数不能达到整体最优,需要用各单目标的最优值构建基于改进ACO算法的多级罚函数模型,得到整体最优值。微风化花岗岩地层中正面滚刀更适合采用镶齿滚刀,得到其优化参数组合,即齿数为36个、齿高为8mm和贯入度为4mm。Disc cutter wear is serious in slightly weathered granite stratum.It is necessary to ensure that the inserted hob has long wear life and high rock breaking efficiency by using the inserted hob instead of the disc cutter.In order to solve these problems,firstly,the force model of rock breaking by inserted hob and the calculation formula of wear amount of each ring were established.Secondly,based on the multi-level penalty function of the improved ACO algorithm,the multi-objective optimization model of the inserted hob was constructed.Finally,the minimum radial wear per ring,the minimum rock breaking specific energy,the longest rock breaking distance and the maximum driving speed of the boring machine were taken as the optimization objectives.Multi-objective optimization of the overall model of inserted hob was carried out,and the optimal number of inserted teeth,tooth height and penetration of the inserted hob were obtained.The results show that the proportion of plastic wear and brittle wear in each ring wear of the inserted hob is relatively large.Taking a certain index as the single-objective optimization function of the inserted hob cannot achieve the integrated optimum.It is necessary to use the optimal value of each single objective to construct the multi-level penalty function based on the improved ACO algorithm to obtain the overall optimal value.The front hob is more suitable for the use of inserted hob in slightly weathered granite stratum.The optimized parameter combination is teeth number of 36,tooth height of 8 mm and penetration of 4 mm.

关 键 词：镶齿滚刀 磨损寿命 破岩效率 多目标优化 

分 类 号：U455.3[建筑科学—桥梁与隧道工程]