摘要
针对传统煤矿罐道形变检测方法存在精度低、操作繁琐等问题,设计了一种基于二维激光扫描仪的煤矿罐道形变检测装置。当罐笼沿罐道线性运动时,通过支撑臂与罐笼相连且与罐道紧贴的滑轮旋转,带动与滑轮同轴且紧密连接的里程编码器旋转并产生触发信号;控制器接收到触发信号后启动固定在罐笼的二维激光扫描仪;二维激光扫描仪发射激光对罐道进行扫描,投射在罐道表面的激光发生漫反射后,被二维激光扫描仪接收,得到罐道扫描数据;罐道扫描数据传输至控制器,上位机调用控制器中的扫描数据并进行处理,可在线绘制罐道轮廓图、离线绘制罐道三维模型,获得2根罐道之间的缝隙宽度、各方向错位值及单根罐道的磨损量,从而判定罐道形变状况。实验结果表明,该装置最大绝对误差为0.6 mm,最大相对误差为10%,具有测量精度高、操作简便、结构简单的特点。
In order to solve the problems of low accuracy and cumbersome operation of traditional coal mine shaft guide deformation detection methods,a coal mine shaft guide deformation detection device based on 2D laser scanner is designed.When the cage moves linearly along the shaft guide,the pulley that connected to the cage through the support arm and closely attached to the shaft guide rotates,driving the coaxial mileage encoder that closely connected with the pulley to rotate and generate a trigger signal.Then the controller receives the trigger signal and starts the 2D laser scanner fixed to the cage.The 2D laser scanner emits laser to scan the shaft guide,and the laser projected on the surface of the shaft guide is diffusely reflected and then received by the 2D laser scanner to obtain the scan data of the shaft guide.The scan data of the shaft guide is transmitted to the controller,and the host computer calls the scan data in the controller and processes it.It can draw the shaft guide outline online and the 3D model of the shaft guide offline to obtain the gap width between the two shaft guides,the misalignment value in each direction and the wear amount of a single shaft guide.Therefore,the deformation of the shaft guide is determined.The experimental results show that the maximum absolute error of the device is 0.6 mm,and the maximum relative error is 10%.The device has the characteristics of high measurement accuracy,simple operation and simple structure.
作者
牛伟锋
宗亮亮
吴丰
涂世宇
艾凌云
胡文彬
甘维兵
NIU Weifeng;ZONG Liangliang;WU Feng;TU Shiyu;AI Lingyun;HU Wenbin;GAN Weibing(Xinzhi Coal Mine,Huozhou Coal and Electricity Group Co.,Ltd.,Huozhou 031400,China;School of Information Engineering,Wuhan University of Technology,Wuhan 430070,China)
出处
《工矿自动化》
北大核心
2021年第3期101-104,111,共5页
Journal Of Mine Automation
基金
国家自然科学基金资助项目(61875155)。
关键词
煤矿罐道
罐笼
形变检测
二维激光扫描
罐道间缝隙宽度
coal mine shaft guide
cage
deformation detection
two-dimensional laser scanning
gap width between shaft guides
