Analysis of load monitoring system in hydraulic mobile cranes
G Kalairassan,M Boopathi,Rijo Mathew Mohan +2 more
- Vol. 263, Iss: 6, pp 062045
TLDR
This 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 to calculate the safe working load range for that particular configuration of the crane.Abstract:
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.read more
Citations
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Journal ArticleDOI
Synchronous Control Theory and First Test of Time-Varying Upper Operation and Chassis Attitude Maintenance for Truck Cranes
TL;DR: In this paper , a synchronous control theory of the upper operation and the chassis attitude maintenance was proposed to improve the attitude stability of a typical truck crane, which is shown to be beneficial for the safety of the vehicle, the operating efficiency and the operating burden of the driver.
Journal ArticleDOI
Методика косвенного измерения массы груза, поднимаемого экскаватором в режиме крана
М. С. Корытов,И. К. Канин +1 more
TL;DR: In this article, the authors proposed a specific method and developed mathematical model according to the indications of hydraulic fluid pressure sensors in the piston and rod cavities of boom lifting cylinders, which solved the indirect measurement problem of the cargo weight lifted by the excavator in crane mode.
Journal ArticleDOI
Soft-Computing-Based Estimation of a Static Load for an Overhead Crane
Tom Kusznir,Jarosław Smoczek +1 more
TL;DR: In this article , a static payload weight is estimated based on the local strain of a crane's girder and the current position of the trolley in order to derive a nonlinear input-output relationship between the measured signals and the estimated payload mass.
References
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Patent
Load moment indicator system
TL;DR: A load moment indicator system for lift equipment is described in this paper, which includes a sensor embedded in a solid portion of the piston rod of the lifting cylinder of the equipment for generating a signal which is indicative of the load being lifted.
Patent
Load-monitoring system for boom-type crane
TL;DR: In this article, a memory aboard a boom-type crane stores the coefficients of several polynomials of at least the fifth order closely approximating respective curves giving the maximum permissible load for different boom lengths as a function of the elevational angle of the boom.
Book ChapterDOI
Alarm system to prevent the overturning of truck cranes considering possible ground failure
Ryoichi Fukagawa,Tatsuro Muro +1 more
TL;DR: In this paper, the authors designed an alarm system to prevent the overturning of truck cranes under condition of ground failure, where the ground response under the outrigger pontoon of a truck crane is expressed by a kind of Weibul distribution curve and the degree of danger is formulated by the ratio of the loading stress to the estimated bearing capacity.