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Prikaz rezultata 1-10 od 19
Failure analysis and redesign of the bucket wheel excavator two-wheel bogie
(Pergamon-Elsevier Science Ltd, Oxford, 2010)
This paper discusses the cause of the failure in the vital part of the crawler travel gear of the bucket wheel excavator (BWE) - two-wheel bogie (TWB). The results of the finite element analysis (FEA) point out that the ...
Cracks, repair and reconstruction of bucket wheel excavator slewing platform
(Pergamon-Elsevier Science Ltd, Oxford, 2009)
This paper discusses the results of the investigation of occurrence of cracks in the structure of bucket wheel excavator (BWE) slewing platform, the repair procedure and the reconstruction of the slewing platform. The ...
Failure analysis of the end eye connection of the bucket wheel excavator portal tie-rod support
(Pergamon-Elsevier Science Ltd, Oxford, 2009)
This paper describes the failure analysis results of the bucket wheel excavator (BWE) portal tie-rod support. The results of finite elements analysis (FEA) point out the occurrence of pronounced stress concentration, whereby ...
Load-bearing steel structure diagnostics on bucket wheel excavator, for the purpose of failure prevention
(Pergamon-Elsevier Science Ltd, Oxford, 2011)
The appearance of cracks on load-bearing steel structure of compact, hydraulic bucket wheel excavator was a perennial problem. Unfavourable stress concentration, inadequate geometry and structure of materials, inadequate ...
Dynamics, failures, redesigning and environmentally friendly technologies in surface mining systems
(Elsevier Urban & Partner Sp Z O O, Wroclaw, 2012)
Failures caused by heavy duty conditions, as well as the changes of technological requirements, are basic reasons for the redesign of specific substructures of the high performance machines (HPM). This paper presents ...
Failure investigation of the bucket wheel excavator crawler chain link
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
The high mobility of open pit machines in heavy duty conditions provides fertile ground for the occurrence of various failures of the traveling mechanisms' vital parts such as chain links. The goal of the study presented ...
Determining the condition of material for tension bar bucket wheel excavator operating under dynamic working conditions
(European Conference on Fracture, ECF, 2012)
Since the bucket wheel excavator SRs 1200 had crashed with bucket wheel boom heavily damaged, there was an opportunity to analyze the real structure that was in operation for past 40 years. As there are 4 more SRs 1200 ...
Disaster of the bucket wheel excavator caused by extreme environmental impact: Consequences, rescue and reconstruction
(Pergamon-Elsevier Science Ltd, Oxford, 2015)
A slope failure was the cause of a severe accident of bucket wheel excavator (BWE) Takraf SRs 1200. This paper is dedicated to the engineering challenges that accompanied the process of returning the BWE from its after ...
Lubrication and maintenance of thrust ball bearing in bucket wheel excavators
(Expert Verlag, 2014)
Bucket wheel excavator is a sample of industrial application in Serbian thermal power sector. The circular motion of the excavator is done through a thrust ball bearing and the drive via toothed ring. This thrust bearing, ...
'Designing-in' failures and redesign of bucket wheel excavator undercarriage
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
The traveling mechanism of the C-700S bucket wheel excavator is of the two-crawler type. Rigid connections between the undercarriage and the crawler beams offer a very high factor of safety against tipping but at the same ...