Analysis of load monitoring system in hydraulic mobile cranes

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Kalairassan, G.^1 ; Boopathi, M.^1 ; Mohan, Rijo Mathew^1

School of Mechanical Engineering, VIT University, Vellore, Tamil Nadu

632014, India^1

关键词: Angle sensors;    Load moment;    Load monitoring systems;    Mobile cranes;    Multiple sensors;    System use;    Telescopic boom;    Working loads;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/6/062045/pdf
DOI  :  10.1088/1757-899X/263/6/062045

来源: IOP

【 摘 要 】

Load moment limiters or safe load control systems or are very important in crane safety. The system detects the moment of lifting load and compares this actual moment with the rated moment. The system uses multiple sensors such as boom angle sensor, boom length sensor for telescopic booms, pressure transducers for measuring the load, anti-two block switch and roller switches. The system works both on rubber and on outriggers. The sensors measure the boom extension, boom angle and load to give as inputs to the central processing, which calculate the safe working load range for that particular configuration of the crane and compare it with the predetermined safe load. If the load exceeds the safe load, actions will be taken which will reduce the load moment, which is boom telescopic retraction and boom lifting. Anti-two block switch is used to prevent the two blocking condition. The system is calibrated and load tested for at most precision.