管状带式输送机巡检机器人轨道热胀冷缩问题仿真与验证  

Simulation and verification of track thermal expansion and contraction of inspection robot for tubular belt conveyor

作　　者：廖辉 苏金辉 Liao Hui;Su Jinhui

机构地区：[1]福建龙净环保智能输送工程有限公司,龙岩364000

出　　处：《起重运输机械》2024年第19期34-40,共7页Hoisting and Conveying Machinery

摘　　要：管状带式输送机巡检机器人能够有效提高设备的巡检效率,降低设备出现重大故障的概率。由于管状带式输送机通常在户外环境中工作,环境温度的大幅度变化致使机器人轨道发生热胀冷缩,且频繁出现连接处断开、螺栓剪断、轨道变形等故障,严重影响了巡检机器人行走于轨道的安全性。文中采用有限元建模的方式研究轨道的热胀冷缩问题,对不同连接方案时轨道应力、横向变形、支架拉力等指标进行分析,采用轨道之间无间隙硬连接,轨道与支架滑动连接,在轨道活动端设置伸缩缝的方案以实现较好效果。同时,在实际工程中验证了上述方案的可行性,总结了管状带式输送机巡检机器人轨道设计的关键性原则,为今后巡检机器人正常运行提供了保障。Inspection robots of tubular belt conveyors can not only effectively improve the inspection efficiency of equipment,but also reduce the occurrence of major failure of equipment.Since tubular belt conveyors usually work in the outdoor environment,the environmental temperature changes greatly,which causes the robot track to expand with heat and contract with cold,leading to frequently-occurred failures such as joint disconnection,bolt shearing and track deformation,which seriously impairs the safety of the inspection robot walking on the track.In this paper,the thermal expansion and contraction of the track were studied by finite element modeling,and the indicators such as track stress,lateral deformation and bracket tension were analyzed with different connection schemes.To improve this situation,seamless hard connection was adopted between the rails,sliding connection was adopted between rail and support,and expansion joints were set at the movable ends of the rails.Additionally,the feasibility of the above proposal was verified in the actual project,and the key principles in the track design of inspection robots of the tubular belt conveyors are summarized,which provides a guarantee for the normal operation of inspection robots in the future.

关 键 词：管状带式输送机 巡检机器人 轨道 热胀冷缩 有限元 

分 类 号：TH222[机械工程—机械制造及自动化]