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
Key words
tubular belt conveyor/inspection robot/track/thermal expansion and contraction/finite element
维普
万方数据