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硬岩掘进机液压阀块设计方法

张怀亮 赵丽娜 周井行

张怀亮, 赵丽娜, 周井行. 硬岩掘进机液压阀块设计方法[J]. 西南交通大学学报, 2020, 55(1): 52-59. doi: 10.3969/j.issn.0258-2724.20180072
引用本文: 张怀亮, 赵丽娜, 周井行. 硬岩掘进机液压阀块设计方法[J]. 西南交通大学学报, 2020, 55(1): 52-59. doi: 10.3969/j.issn.0258-2724.20180072
ZHANG Huailiang, ZHAO Lina, ZHOU Jingxing. Design Method of Hydraulic Valve Block for Tunnel Boring Machine[J]. Journal of Southwest Jiaotong University, 2020, 55(1): 52-59. doi: 10.3969/j.issn.0258-2724.20180072
Citation: ZHANG Huailiang, ZHAO Lina, ZHOU Jingxing. Design Method of Hydraulic Valve Block for Tunnel Boring Machine[J]. Journal of Southwest Jiaotong University, 2020, 55(1): 52-59. doi: 10.3969/j.issn.0258-2724.20180072

硬岩掘进机液压阀块设计方法

doi: 10.3969/j.issn.0258-2724.20180072
基金项目: 国家重点基础研究发展计划(2013CB035400)
详细信息
    作者简介:

    张怀亮(1964—),男,教授,博士,研究方向为液压系统动力学,E-mail:zhl2001@csu.edu.cn

  • 中图分类号: TH137

Design Method of Hydraulic Valve Block for Tunnel Boring Machine

Funds: The National Basic Research Program of China (973 Program)
  • 摘要: 为了改善基础振动下液压阀块流道流通品质,基于有限元原理建立了基础振动下流道的仿真模型并验证了仿真模型的正确性;分析了基础振动下不同流道的布局方式,工艺孔结构参数,进出口流道长度对流道压降特性的影响;提出了基础振动下液压阀块的设计流程. 研究结果表明:基础振动下U型流道压降特性最好,Z型流道最差;U型流道工艺孔长度越短,流道压降平均值和压降波动越小;Z型流道工艺孔长度为3.5倍工艺孔直径,V型流道的工艺孔长度为3倍工艺孔直径时,流道压降平均值和压降波动较小;工艺孔直径略大于进出口流道直径时,有利于减小基础振动的影响;出口流道的长度在3倍出口流道直径以上时,有利于避免流道出口处于转弯后流场的恢复区. 新的设计方法能够有效减小阀块内流体压降大小,提高压力稳定性.

     

  • 图 1  典型流道

    Figure 1.  Typical flow channels

    图 2  流道的网格划分

    Figure 2.  Mesh of flow channels

    图 3  不同布局方式下的压降特性

    Figure 3.  Pressure drop characteristics under the different layout ways

    图 4  压降特性曲线与工艺孔长度的关系

    Figure 4.  Relationship between pressure drop characteristics and the length of fabrication hole

    图 5  压降特性曲线与工艺孔直径的关系

    Figure 5.  Relationship between pressure drop characteristics and the diameter of fabrication hole

    图 6  压降特性曲线与工艺孔冗余腔长度的关系

    Figure 6.  Relationship between pressure drop characteristics and the redundancy cavity length of fabrication hole

    图 7  不同出口长度处的速度云图

    Figure 7.  Velocity contour at different length of export

    图 8  试验系统

    Figure 8.  Experimental system

    图 9  无基础振动下流道流量-压降曲线

    Figure 9.  Flow-pressure drop curve of U-shaped and Z-shaped channel without foundation vibration

    图 10  基础振动下压降波动幅值

    Figure 10.  Fluctuation amplitude of pressure drop under foundation vibration

    图 11  基础振动下阀块的设计流程

    Figure 11.  Design flow of valve block under the foundation vibration

    图 12  液压推进系统原理

    Figure 12.  Schematic diagram of thrust hydraulic system

    图 13  油路布局

    Figure 13.  Flow channel layout

    图 14  阀块设计

    Figure 14.  Design of valve block

    表  1  流体介质参数

    Table  1.   Parameters of fluid

    介质类型密度/(kg•m – 3动力粘度/(kg•(m•s)−1热传导系数/(W•(m•k)−1比热容/(J•(kg•k)−1
    46号液压油8700.039 150.121 700
    下载: 导出CSV

    表  2  液压元件类型

    Table  2.   Types of hydraulic element

    标号名称型号
    3 比例调速阀 RPCED1-25/T3
    4 二位二通换向阀 DS3-TA23/10N
    5 比例溢流阀 RPCED10-350/10N-D24K1
    6 三位四通换向阀 DS3-S3/10N-D24K1
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-02-23
  • 修回日期:  2018-09-18
  • 网络出版日期:  2018-10-10
  • 刊出日期:  2020-02-01

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