China Mechanical Engineering ›› 2026, Vol. 37 ›› Issue (2): 487-497.DOI: 10.3969/j.issn.1004-132X.2026.02.023

Previous Articles    

Design of Full-section Rectangular Tunneling Devices and Experimental Study of Its Stable Rock-cutting Characteristics

LI Qiang1,2(), LIU Songyong1(), WANG Yan1   

  1. 1.School of Mechatronic Engineering,China University of Mining and Technology,Xuzhou,Jiangsu,221116
    2.School of Mechanical and Electronic Engineering,Suzhou University,Suzhou,Anhui,234000
  • Received:2025-01-18 Online:2026-02-25 Published:2026-03-13
  • Contact: LIU Songyong

全断面矩形掘进机刀盘设计及其稳定截割岩样截割特性试验研究

李强1,2(), 刘送永1(), 王焱1   

  1. 1.中国矿业大学机电工程学院, 徐州, 221116
    2.宿州学院机械与电子工程学院, 宿州, 234000
  • 通讯作者: 刘送永
  • 作者简介:李 强,男,1987年生,副教授、博士。研究方向为巷道快速掘进技术及装备。E-mail:liqiang1205@163.com
    刘送永*(通信作者),男,1981年生,教授、博士研究生导师。研究方向为巷道快速掘进技术及装备。E-mail:lsycum@163.com
  • 基金资助:
    江苏省杰出青年基金(BK20211531);安徽高校科学研究项目(2024AH051815);安徽高校优秀青年教师培育重点项目(YQZD2023080);安徽省高校理工科教师赴企业挂职实践计划(2024jsqygz116)

Abstract:

Aiming at the problems of complex cutter head form of full-section rectangular roadheader in existing coal mine roadway, difficulty in one-time tunneling forming of full-section. A method for implementing rectangular truncation was proposed based on the principle of Reuleaux motion, a kind of eccentric shaft planetary gear drive Reuleaux triangle single cutter head was designed based on the proposed method, and the motion trajectory simulation was carried out. A full-section rectangular cutterhead cutting test bench was built and multiple sets of tests under stable cutting states were carried out. The test results show that: the center fishtail cutter may increase the stability of the cutting processes, the vibration of XY and Z directions is greatly respectively reduced, the minimum reduction is as 42.107 %, and the maximum is as 51.753 %. The stable cutting rock sample tests under 11 groups of different cutting parameters were carried out, and the relationship among torque, oil pressure and cutting parameters was obtained. A concept of equipment economic cutting parameter region was proposed. The economic cutting parameter area of the cutterhead designed under the condition of the test rock sample is determined to be n(N-p)min=[6.6,9.8] r/min;v(N-p)min=[14.25,18.3] mm/min. The graphic difference rates among the theoretical section, the simulation section, the test section and the standard square are as 3.18 %, 5.09 % and 6.64 % respectively, which verifies the feasibility of the cutter to realize rectangular cutting.

Key words: full section, rectangular, tunnel boring machine, cutting characteristics, graphic difference rate, economic cutting parameter area

摘要:

针对现有煤矿巷道全断面矩形掘进机刀盘形式复杂、全断面一次掘进成形困难等问题,提出了一种基于勒洛三角形运动原理实现矩形截割的方法,设计了一种基于所提方法的偏心轴行星齿轮驱动勒洛三角形单刀盘,进行了运动轨迹仿真,搭建了全断面矩形刀盘截割试验台,进行了稳定截割状态下的多组试验。试验结果表明:中心鱼尾刀能增加截割过程的稳定性,较大程度地减小了XYZ方向的振动,减小幅度最小达42.107%,最大达51.753%;进行了11组不同截割参数下的稳定截割岩样试验,得到了扭矩、油压与截割参数的变化关系,提出了设备经济截割参数区域的概念,确定了在试验岩样下所设计的刀盘经济截割参数区域为:转速n(N-p)min=[6.6,9.8] r/min,掘进速度v(N-p)min=[14.25,18.3] mm/min;对截割后的岩样断面轮廓进行三维扫描、重构和比对,得到理论断面、仿真断面、试验断面与标准正方形之间的图形差异率依次为3.18%、5.09%、6.64%,验证了该刀盘实现矩形截割的可行性。

关键词: 全断面, 矩形, 掘进机, 截割特性, 图形差异率, 经济截割区域

CLC Number: