Explosion of Air Receiver on Excavator | ASM Failure Analysis …
ASM Failure Analysis Case Histories: Improper Maintenance, Repair, and Operating Conditions. ... While an attempt was being made to start the diesel engine of a dragline type excavator, a severe explosion took place, the operator unfortunately being killed. ... Fatigue Failure of a Diesel Engine Piston Pin. ASM Failure Analysis Case Histories ...
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DRAGLINE Hitch Pin on drag socket side
Description. Part # CA3741#8 Hitch Pin on drag socket side. Used on a 13-15 Yard Dragline Bucket. Quantity in stock – 6
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Preventive Replacement Decisions for Dragline Components …
A sample illustration of the tests for the Dragline-1 bucket pin is given in Figure 3. ... In this sense, individual failure modes in the dragline mechanism were detected and characterized using reliability evaluation methods. Resultant lifetime parameters were utilized to identify wear-out components in the dragline.
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DRAGLINE Pin for Spreader Bar
Description. Part # T350 Pin for Spreader Bar. Used on a 13-15 Yard Dragline Bucket. Quantity in stock – 16
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Bayesian Network Approach for Dragline Reliability Analysis: …
Besides bucket teeth failure, various pin failure due to load stress has been observed significantly. The total number of failures in the "bucket and accessories" subsystem …
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IDENTIFICATION OF FAILURE SURFACES IN DRAGLINE …
This paper identifies failure surfaces in the dragline dumps and discusses the various probable failure modes on dragline dump slopes in opencast coal mines of Northern Coalfields Limited, India that were studied throughout a CIL R and D project: development of guidelines for dragline dump profile under varying geo-
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Fault prediction of drag system using artificial neural …
Therefore research works on dragline to improve its availability and productivity have been emphasized in many research papers through optimized inspection interval of dragline using time counter algorithm [2,3], and through reliability analysis and failure rate evaluation of critical components dragline to make the maintenance and replacement ...
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Failure Analysis of Dragline Using Dynamic Bayesian …
In this paper, failure analysis of dragline using dynamic Bayesian network (DBN) to determine the critical failure components of the dragline system and their responsible root causes.
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Dragline boom failure
Dragline boom failure . A structural defect of the boom point sheave swivel yoke was not identified. Lou Caruana. ... 01 June 2021. A coal mine worker operating the dragline was in the process of slewing with a full bucket in preparation to dump onto spoil.
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Deterioration Mechanisms in Dragline Wire …
Surface defects (a) Surface Defects Figure 9: Surface Subsequent Fatigue Failures Fracture surface Defects Crack initiating point Beach marks Fracture area (b) Fatigue Failure due to Surface Defects on a Suspension Rope Wire …
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Dragline Bench Failure
Norwich Park. Looks like the same dragline incident you posted photos of in 2009. June 27, 2012 at 2:48 PM Anonymous said... Dragline 19 vs 20 and this picture shows a machine tilted towards the operators cab and it appears to be at less of a an angle. I'd say all signs point towards a different incident. June 29, 2012 at 11:51 PM Anonymous said...
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Catastrophic failure of a dragline boom : Resources Safety …
Catastrophic failure of a dragline boom Mine type. Coal mine – surface. Incident. The boom and mast of a BE 1370 dragline failed and collapsed into the pit. No personnel were injured. At the time of the collapse the bucket was in easy digging (re-handle material); the bucket was being dragged and no hoist applied.
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Reliability analysis of a Dragline: A Case Study
Draglines are capital-intensive dragline can lead to major downtime losses. The goal of HEMMs, and hence their failure has a major impact on reliability analysis is to examine a statistical …
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CN207600335U
The utility model discloses a kind of gear shift cap assembly dragline pin detecting tool, including bottom plate and the first support base being arranged on bottom plate, the second support base, detection axle bed and positioning block.First support base is arranged on the middle part above bottom plate, and positioning plate is equipped on the first support base, and the matched ...
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Failure Analysis and Design of a Heavily Loaded Pin Joint
The failure of pin joints has been studied closely and some of the failure modes analyzed include: loss of the lubricant, seizure of the pin, noise and vibration in the pin joint, loosening of the …
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Dragline Parts | FairWinds MFG
FairWinds Manufacturing creates the essential parts that connect the bucket to your Hendrix dragline machine. We also specialize in making parts that are no longer available for other brands, keeping your equipment up and running. ... (Same as Hood Angle Pin) HAPN - Hood Angle Pin Nut Only. Quanity: 1. Hood Angle Pin Nut Only. HCB - Hoist Chain ...
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Bayesian Network Approach for Dragline Reliability Analysis: …
Besides bucket teeth failure, various pin failure due to load stress has been observed significantly. The total number of failures in the "bucket and accessories" subsystem along with all its associated components has been noted to be 364 during the study period. ... This study presented a BN model for the reliability analysis of a dragline ...
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(PDF) IDENTIFICATION OF FAILURE SURFACES IN DRAGLINE …
This paper identifies failure surfaces in the dragline dumps and discusses the various probable failure modes on dragline dump slopes in opencast coal mines of Northern Coalfields Limited, India that were studied throughout a CIL R and D project: development of guidelines for dragline dump profile under varying geoengineering conditions (Roy I ...
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Failure modes and maintenance types of dragline …
Failure of dragline contributed to total downtime of 4955 h in 28-month (2014–16) period and 50% of these downtimes were contributed by its drag system alone.
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(PDF) Reliability Analysis of a Dragline for
This paper utilises the failure mode, effects and criticality analysis (FMECA) to identify the critical failure components of the dragline system and their root causes.
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Fault Prediction of Drag System using Artificial Neural …
Failure of dragline contributed to total downtime of 4955 h in 28-month (2014–16) period and 50% of these downtimes were contributed by its drag system alone. The symptoms those exceeded ...
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Fracture mechanics of mining dragline booms
In addition, the failure analysis of dragline components have been analyzed and predicted fatigue life in welded joints through cracks and fracture [38–40], structure of dragline [41], swing pinion shaft [42], bucket [43,44], and the fracture mechanics of booms [45,46]. Fault diagnosis of draglines has also been conducted using expert ...
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Reliability-Centered Maintenance of Rapier Dragline for …
statistical distributions. The failure of dragline components possess independent and identical distributions, as stated in an earlier study [28]. Therefore, each failure data set pertaining to a failure of the individual component was fitted to Weibull failure model using the non-linear least square method, and the MTTF was then calculated ...
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DRAGLINE OPERATION
of the dragline, and the dragline operator is unaware of their location. The basic job steps included in this module are: 1. Conduct walk-around inspection of dragfine and work area. ... machine failure. G) Slips and falls. 2. A) Slips, falls, caught between dragline and other machine. B) Slips and falls, caught on projections. C) Rock fall ...
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The Best Cool Hand Luke Movie Quotes (1967)
Convict: [about the woman washing a car nearby] Oh man, oh man, I'm dyin'. Gambler: She ain't got nothin' but, nothin' but one safety pin holdin' that thing one on safety pin, POP. Come on baby, POP. Dragline: Hey …
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Failure of a swing pinion shaft of a dragline
The causes of failure of a swing pinion shaft of a coal handling dragline have been investigated in the present work. Along with the failed shaft, a small piece of material from the …
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Metallurgical Investigation of the Collapsed Front Structure …
A dragline is the largest mobile equipment on earth, and it is called the "kingpin" of any mine site. In this present investigation, a case of premature failure of a coal-handling dragline is discussed. Failure occurred in a linked component known as "thimble," which connects the A-frame and the vertical mast of the dragline. The thimble was broken into two halves and …
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Maximising pendant life.
Failure mode The typical failure mode of dragline pendants is fa-tigue wire breaks within one metre of the base of the socket. The wire breaks occur due to heavy nicking between the …
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Fault prediction of drag system using artificial neural network …
Rather than failure analysis of the components, the fault diagnosis of 18 dragline components has been studied using experts' judgment [43]. Most of the research works performed in the dragline are carried out based on the occurrence of failure, and research works on fault diagnosis of capital intensive draglines are still limited.
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Reliability, availability and maintainability (RAM) analysis …
2. Study of failure data: To analyze the failure data to which types of the failure modes, distinguished the data in different failure types. 3. Test the trends in failure rate: Plot the number of ...
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