三臂凿岩台车臂架机械与液压系统优化与仿真分析  

Optimization and Simulation Analysis on Boom Mechanism and Hydraulic System of a Three-arm Rock Drilling Jumbo

作　　者：李光朋 阮利超 李皓楠 常威 LI Guang-peng;RUAN Li-chao;LI Hao-nan;CHANG Wei(China Railway Engineering Equipment Group Tunnel Equipment Manufacturing Co.,Ltd.,Xinxiang 453000,China)

机构地区：[1]中铁工程装备集团隧道设备制造有限公司,河南新乡453000

出　　处：《液压气动与密封》2025年第2期9-17,共9页Hydraulics Pneumatics & Seals

基　　金：国家重点研发计划项目(2020YFB2007200)。

摘　　要：三臂凿岩台车是硬岩隧道钻爆法施工的专用设备,其臂架系统是末端钻机大范围作业的关键。针对三臂凿岩台车臂架系统易抖动、变形大的难题,提出优化臂架机械结构强度与一阶谐振频率,开发一套臂架高稳态电液驱动系统,实现三臂凿岩台车臂架系统稳定性与可靠性的提升。首先,在分析传统臂架结构应力应变分布与模态特征基础上,提出优化设计伸缩臂内部肋板与大臂外部肋板结构,在不影响总体结构尺寸的前提下,将大臂(伸缩臂完全伸出)最大变形由32.1 mm降至19.6 mm,一阶固有频率由2.36 Hz提升至3.03 Hz。在此基础上,开发了一套新型高稳态臂架电液驱动系统,建立电液驱动系统的仿真分析模型,并提出优化设置平衡阀弹簧刚度、平衡阀控制口与回油口阻尼阀过流面积、主油路阻尼阀过流面积等参数提升电液系统的稳定性,通过仿真建模分析探明了不同液压系统参数对臂架控制系统稳定性与动态特性的影响规律。通过臂架机械与液压系统的优化,实现臂架系统稳定性的提升,对未来三臂凿岩台车的设计与调试提供了重要参考。The three-arm drilling jumbo is specialized equipment for hard rock tunnel construction using the drill-and-blast method.Its boom system is crucial for the extensive operational range of the end drill.Addressing the issues of easy vibration and large deformation in the boom system of the three-arm drilling jumbo,this paper proposes optimizing the mechanical structure strength and the first-order resonant frequency of the boom.It develops a high-stability electro-hydraulic drive system for the boom,enhancing the stability and reliability of the boom system of the three-arm drilling jumbo.Firstly,based on the analysis of the stress-strain distribution and modal characteristics of the traditional boom structure,this paper proposes an optimized design for the internal rib structure of the telescopic arm and the external rib structure of the main arm.Without affecting the overall structural dimensions,the maximum deformation of the main arm(with the telescopic arm fully extended)is reduced from 32.1 mm to 19.6 mm,and the first-order natural frequency of the main arm(with the telescopic arm fully extended)is increased from 2.36 Hz to 3.03 Hz.On this basis,a new high-stability electro-hydraulic drive system for the boom is developed.A simulation analysis model of the electro-hydraulic drive system is established,and parameters such as the spring stiffness of the balance valve,the flow area of the damping valve at the control port and oil return port of the balance valve,and the flow area of the damping valve in the main oil circuit are optimized to enhance the stability of the electro-hydraulic system.Through simulation modeling analysis,the influence laws of different hydraulic system parameters on the stability and dynamic characteristics of the boom control system are clarified.This paper proposes that the optimization of the boom's mechanical and hydraulic systems can improve the stability of the boom system,providing an important reference for the future design and debugging of three-arm drilling jumbos.

关 键 词：三臂凿岩台车 臂架系统 臂架结构 电液驱动系统 稳定性与动态特性 

分 类 号：TH137[机械工程—机械制造及自动化]