Materials selection to excavator teeth in mining industry

Fernández, Juan Manuel Vilar; Vijande, R.; Tucho, R.; Rodrı́guez, J.; Martı́n, A.

doi:10.1016/s0043-1648(01)00624-x

Cited by 42 publications

(22 citation statements)

References 6 publications

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“…In this research, the type of excavator used is Komatsu PC200, which is commonly used for digging processes in construction work. The data of material specification are then inserted to the software analysis, so that the simulation data are close to the real condition, [23]. From the excavator specification, the data is used to calculate the digging force, as shown in the following table: …”

Section: Modelingmentioning

confidence: 99%

Analysis of Rake Angle Effect to Stress Distribution on Excavator Bucket Teeth Using Finite Element Method

et al. 2018

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Excavator is mostly used for mining and construction. This heavy equipment, widely known as a backhoe, is a digging machine commonly used for dredging the mining materials, digging and leveling the soil, dredging the river, removing the road and demolition. Excavator has bucket teeth, component that frequently undergoes a change. The replacement of bucket teeth is performed due to its low usage time and many failure experiences such as wear, bend, crack and facture during the use. To prevent the occurrence of the failures, a structural analysis on bucket teeth is necessarily conducted. The analysis was conducted to find the stress distribution on bucket teeth from the rake angle effect during the excavation. The analysis was performed using finite element method by static loading and two-dimensional modeling to determine digging and resistive force in bucket teeth. Based on the analysis, it was obtained the stress distribution and maximum value of von misses occurring in the bucket teeth from the rake angle effect. The maximum stress, obtained from the analysis results, was then compared to the allowable stress of the bucket teeth material. The results showed that the materials used were in safe limits and had small potential for experiencing failure as well.

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Section: Modelingmentioning

confidence: 99%

Analysis of Rake Angle Effect to Stress Distribution on Excavator Bucket Teeth Using Finite Element Method

et al. 2018

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“…Bucket teeth are located at the end of a bucket, and wedge into soil with a certain angle during operation, which enable the bucket to dig into soil with a lower resistance. The common methods for improving the digging performance of bucket teeth mainly include configuration modification [1,2], wear resistance enhancing [3,4], and excavation trajectory optimization [5]. The geometric configuration of a bucket tooth directly affects the soil wedging performance [6,7].…”

Section: Introductionmentioning

confidence: 99%

Design of Bionic Bucket Teeth and Drag Reduction Analysis

Zhang¹,

Zhang²,

Zhu³

et al. 2017

Proceedings of the 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017)

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Abstract. Bucket teeth are located at the end of a bucket, which enable the bucket to dig into soil with a lower resistance. In this paper, the configuration information of a claw tooth of mole crickets was extracted and used for designing the configuration of a bionic bucket tooth which was modified from the CAT-320D excavator bucket tooth. The soil wedging processes of the bionic bucket tooth and the CAT-320D bucket tooth were analyzed using finite element analysis, and the soil wedging performances of the two teeth were compared. The results show that the concave side of the bionic bucket tooth is easy to make a large deformation of the soil, which is help to break the soil interface. The soil disturbance on the convex side of the bionic bucket tooth is small, which is help to reduce the compaction of the dorsal soil and friction. Compared with the CAT-320D bucket tooth, the bionic bucket tooth has a greater effect on wedging the soil, in which the total stress of the soil is smaller. The analysis on the total soil energy shows that the energy consuming of the bionic bucket tooth is lower than that of the CAT-320D bucket tooth.

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“…Analysis of the literature available [1,2,3,6,7,15,21] indicates that the phase structure and pad-weld structure should be interpreted individually for the specific chemical components. The unambiguous and universal classification of pad-welding materials is difficult since those materials require proper choice due to their specific structures, depending on the conditions of use present.…”

Section: Introductionmentioning

confidence: 99%