Results 101 to 110 of about 7,909 (215)
Behaviour of Steel Ropes in Multi-Sheave Systems of Tower Crane Hositing Mechanisms
Management Systems in Production EngineeringThis article discusses issues related to tower cranes, a group of lifting machines used in the construction industry. Vertical transport on a building site is of paramount importance, accounting for approximately 50% of all construction works. Currently,
Midor Łukasz +3 more
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Automatic intrusion detection and warning method in the hoisting scenario integrated BIM and GPS
Alexandria Engineering JournalMonitoring of intrusion at construction sites is crucial to ensure personnel safety. However, current systems struggle to automatically determine the spatial extents of hoisting areas and reliably assess worker movements in dynamic construction ...
Xuefeng Zhao +4 more
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Research on the Failure Mechanism and Solution Strategy for Friction Braking of Electric Hoists
Journal of Physics: Conference SeriesAbstract The electromagnetic braking motor, which combines cylindrical motors with electromagnetic brakes, has gradually been widely used in the lifting mechanism of electric hoists. This configuration of electric hoists usually has a large difference in lifting speed between fast and slow, and the highest speed can reach the lowest ...
Songlei Wang, Fang Liu, Hui Jin
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Displacements in Mechanical Systems Due to Random Inputs in a Mine Hoist Installation
Engineering Transactions, 2017 Conveyances, cages and skips are typical components of hoisting installations in mines. The Authors emphasises the fact that already at the stage of design utmost care must be taken to reduce the skip’s own mass, at the same time improving its reliability through controlling the deformations of its structural elements.
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Research of the Linkage Point Trajectory Curvature and Design of the Related Mechanism
Jixie chuandong, 2017 The linkage point trajectory curvature theory on the existing literature is summarized and improved. Another method determining the linkage point trajectory curvature center by the absolute and relative instantaneous center is working out.
Wang Yundi +3 more
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Wire rope mis-wrap due to wire rope “cut-in” on LEBUS drums
Nihon Kikai Gakkai ronbunshuThe physical mechanism underlying wire rope cut-in in multilayer drums was experimentally investigated. Although the wire rope appears to be correctly spooled on the drum, hoisting the load can cut the spooling wire rope into multiple layers, leading to ...
Shuichi NAKAYAMA +2 more
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Eksploatacja i Niezawodnosc - Maintenance and Reliability, 2016 Andrzej Kosucki, Piotr Malenta
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Analisis Struktur Pada Girder Overhead Crane Swl 30 Ton [PDF]
, 2014 Overhead crane is a device used to move goods. Overhead cranes are very important during the production period, if there is a problem in the overhead crane, it can disrupt the production process.
Jefriansyah, J. (Jefriansyah) +1 more
core
Abstract As an important actuator of the crane, the hoisting mechanism adopts the composite braking method of electrical + mechanical braking under normal working conditions, and usually adopts the mechanical braking brake under emergency working conditions. In emergency situations, mechanical brake systems are commonly used.
Quan-Wei WANG +4 more
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Journal of Materials Research and TechnologyThe fretting wear of steel wire will reduce the service life of wire rope and severely threaten the safety of mine hoisting. To investigate the influence of torsion on the fretting wear behavior of steel wire, the fretting wear tests of steel wires with ...
Chunming Xu +5 more
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