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基于煤岩可钻性的钻孔机器人自适应控制方法

李旺年 张幼振 田宏亮 李泉新 魏宏超

李旺年,张幼振,田宏亮,等. 基于煤岩可钻性的钻孔机器人自适应控制方法[J]. 工矿自动化,2023,49(6):182-188.  doi: 10.13272/j.issn.1671-251x.2022110047
引用本文: 李旺年,张幼振,田宏亮,等. 基于煤岩可钻性的钻孔机器人自适应控制方法[J]. 工矿自动化,2023,49(6):182-188.  doi: 10.13272/j.issn.1671-251x.2022110047
LI Wangnian, ZHANG Youzhen, TIAN Hongliang, et al. Adaptive control method for drilling robot based on coal and rock drillability[J]. Journal of Mine Automation,2023,49(6):182-188.  doi: 10.13272/j.issn.1671-251x.2022110047
Citation: LI Wangnian, ZHANG Youzhen, TIAN Hongliang, et al. Adaptive control method for drilling robot based on coal and rock drillability[J]. Journal of Mine Automation,2023,49(6):182-188.  doi: 10.13272/j.issn.1671-251x.2022110047

基于煤岩可钻性的钻孔机器人自适应控制方法

doi: 10.13272/j.issn.1671-251x.2022110047
基金项目: 陕西省自然科学基础研究计划项目(2023-JC-YB-341);天地科技股份有限公司科技创新创业资金专项项目(2022-2-TD-ZD006);中煤科工集团西安研究院有限公司科技创新基金项目(2020XAYDC01-03)。
详细信息
    作者简介:

    李旺年(1987—),男,陕西吴堡人,在读博士研究生,副研究员,从事煤矿井下钻探技术与装备研发工作,E-mail:liwangniancctegxian.com

  • 中图分类号: TD77

Adaptive control method for drilling robot based on coal and rock drillability

  • 摘要: 由于含煤地层的地质力学环境复杂,导致钻孔机器人给进系统的给进阻力和回转系统的负载转矩复杂多样。现有技术仅通过既定程序控制执行机构进行流程化的动作,钻进过程的自适应智能控制水平低,当钻进工况变化时易造成卡钻、断钻等事故,降低钻孔机器人的钻进效率,影响工作周期。针对该问题,提出一种基于煤岩可钻性的钻孔机器人给进回转双回路PID自适应控制方法。首先以钻进效率和钻进安全为控制目标,选择钻压、转矩作为煤岩可钻性模型的输入参数,运用小波包分解对钻进过程数据进行特征提取,得到样本数据和测试集,利用BP神经网络进行训练和验证,建立煤岩可钻性模型,获取当前钻进工况下推荐钻速和转速。然后基于煤岩可钻性模型,设计了基于PID控制的恒转矩控制策略和恒钻速控制策略,钻孔机器人给进回转控制系统通过恒转矩控制回路对设定钻压进行调整以实现恒转矩控制,通过恒钻速控制回路对设定转矩进行调整以实现恒钻速控制,在确保其安全工作下提高钻进效率。最后建立反映给进回转负载的钻头−煤岩相互作用模型并对钻孔机器人给进回转双回路PID自适应控制方法进行仿真测试。结果表明:① 在煤岩硬度不变时,该控制方法可以实现恒转矩和恒钻速控制,转矩保持在2 000 N·m,钻速保持在6 mm/s。② 在50 s时,增大煤岩硬度,采用自适应调整策略后,钻孔机器人给进回转控制系统的钻压、转速等可以很快达到稳定状态。③ 若推荐钻速6 mm/s对应的实际转矩2 350 N·m超过钻孔机器人工作允许的负载转矩,且其实际转速85 r/min小于推荐转速的95%时,通过钻速微调模块降低推荐钻速设定值,进而通过调整钻压使钻孔机器人的转矩调整至最优转矩,确保钻孔机器人再次稳定在恒转矩和恒钻速控制状态。

     

  • 图  1  钻孔机器人给进回转自适应控制系统

    Figure  1.  Drilling robot feed and rotary adaptive control system

    图  2  给进回转自适应控制系统结构

    Figure  2.  Structure of feed and rotary adaptive control system

    图  3  设定钻速调整下的转矩变化

    Figure  3.  Torque change under set drilling speed adjustment

    图  4  设定钻速调整下的钻速变化

    Figure  4.  Drilling speed change under set drilling speed adjustment

    图  5  设定钻速调整下的转速变化

    Figure  5.  Rotational speed change under set drilling speed adjustment

    图  6  设定钻速调整下的钻压变化

    Figure  6.  Drilling pressure change under set drilling speed adjustment

    图  7  设定钻速调整下的给进力变化

    Figure  7.  Feed force change under set drilling speed adjustment

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  • 收稿日期:  2022-11-12
  • 修回日期:  2023-06-25
  • 网络出版日期:  2023-06-30

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