煤矿井下管路安装机器人运动学建模分析

    Kinematics modeling analysis of underground coal mine pipeline installation robot

    • 摘要: 考虑到现有管路安装机器人无法实现掘进面的常用管路的抓举和安装,本文研究一种针对掘进工作面的管路安装机器人。以李家壕煤矿掘进工作面工况为工程背景,进行管路安装车总体方案设计,为了减少人员控制设备反复抓取和托举管路,制定了管路安装机器人控制系统总体方案,并进行管路安装机器人运动学分析,采用D-H方法建立其运动学模型,并求解,分析机械臂的工作空间。为验证本文设计的安装机器人的运动学特性和运动学模型的准确性,使用MATLAB软件编写运动学正逆解程序,使用SolidWorks建立机器人三维模型,并导入MATLAB软件,观察机器人抓取管路和安装管路过程中的运动状态,验证所设计的机械臂满足管路安装使用。在地面开展煤矿掘进面管路安装机器人试验,结果表明,本文研究设计的管路安装机器人能够实现φ108~φ500 mm管路的抓取,并且能够举升到5 000 mm以上高度,可实现井下代替人工完成管路的抓、举功能,降低工人劳动强度。

       

      Abstract: Considering that existing pipeline installation robots are unable to achieve common pipeline lifting and installation on excavation faces, this paper studies a pipeline installation robot specifically designed for excavation faces. Taking the working conditions of the excavation face in Lijiahao Coal Mine as the project background, the overall scheme design of the pipeline installation vehicle is carried out. In order to reduce the repeated grasping and lifting of pipelines by personnel control equipment, the overall scheme of the pipeline installation robot control system is formulated, and the motion analysis of the pipeline installation robot is carried out. The D-H method is used to establish its kinematic model, and the kinematics is solved to analyze the working space of the robotic arm. To verify the kinematic characteristics of the installation robot designed in this paper and the accuracy of the established kinematic model, a kinematic forward and inverse solution program is written using MATLAB software. A 3D model of the robot is established using SolidWorks and imported into MATLAB software to observe the motion state of the robot during pipeline grasping and installation, and to verify that the designed robotic arm meets the requirements of pipeline installation. Experimental research is conducted on the installation robot of coal mine excavation face pipelines on the ground. The test results show that the pipeline installation robot designed in this study can grasp pipelines with a diameter of φ108-φ500 mm and lift them to a height of over 5 000 mm. It can replace manual labor to complete pipeline grasping and lifting functions underground, reducing the labor intensity of workers.

       

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