Adapters for metallurgical equipment

Artiukh, Viktor; Mazur, V. L.; Kargin, Sergey; Zakharova, L. V.

doi:10.1051/matecconf/201817003028

Cited by 10 publications

(10 citation statements)

References 16 publications

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“…Three even natural modes , , (43,152,329 Hz) correspond to torsional vibrations of separated branches, while four odd modes , , , (30,87,172,332 Hz) correspond to symmetrical oscillations of parallel branches in the gear drive (see Fig. 1 and Table 2).…”

Section: Modal Analysismentioning

confidence: 99%

“…Those methods are applicable only at the design stage. During the operation period, some elastic damping elements can be implemented in the spindles to reduce overall input impacts [30,31], which is not concerned with internal gearbox dynamics. Diagnostic methods [32,33] and torsional dynamics monitoring based on special signal processing of motor current [34,35] and strain gauges telemetry tools [36,37] are not feasible due to low dynamics at spindles.…”

Section: Introductionmentioning

confidence: 99%

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Dynamical processes in a multi-motor gear drive of heavy slabbing mill

Krot¹

2019

J. vibroeng.

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A real case study is represented of abrupt failures in a new multi-motor gear drive of vertical rolls in the heavy slabbing mill. Modal analysis is conducted, and the lowest torsional vibration modes are verified by the data from an industrial plant. Conditions of parametric resonances due to variable stiffness of teeth are determined within the range of working speed. The branched gear drive is investigated by the non-linear dynamical model with backlashes. It is shown that instantaneous dynamic loads in driveline are strongly dependent on the difference in gap sizes and phase shift between two intermediate gears in the output gear wheel coupling. Deviation in electrical parameters by 0.5 % is considered as the additional cause of not equal load sharing of parallel motors. Results of this research allowed preventing further failures of the gearbox and optimizing slabbing mill control. The proposed approach can be used in other multi-motor machines.

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Section: Modal Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamical processes in a multi-motor gear drive of heavy slabbing mill

Krot¹

2019

J. vibroeng.

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“…Their energy efficiency is comparable to energy efficiency of spring grades of steel. Elastomer-based shock absorbers are simple in design and operation, they are superior to springs in many basic parameters [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Study of polymer adhesion to steel

et al. 2019

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Tests on the dependence of glues shear strength on: gluing temperature, keeping time before testing, cooling environment, surface roughness, surface conditions, temperature and time of drying on air and in drying oven were carried out to select proper thermoplastics to use as glues for connection of steel elements together. The highest shear strength was showed by the following materials: desmopan 150, antifriction polyamide PA 610-L-DM, impact-resistant glass-filled polyamide. Given results allow significantly expanding scope of application of polymers as gluing compositions.

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“…Their elements are exposed to significant dynamic loads and high temperatures. Need to develop a methodology for strength calculations of traverse elements of casting cranes was justified earlier [1][2][3][4][5] that would allow to: consider their actual working conditions, increase accuracy of calculations, increase their reliability and safety of operation. It was shown [6] that actual values of inertial loads during crane moving may exceed values considering during its design.…”

Section: Introductionmentioning

confidence: 99%

Analysis of stress-strain states of casting crane traverse

et al. 2019

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The purpose of this paper is to analyze actual stress-strain states of casting crane traverse taking into account weight of lifted load, thermal effects and additional inertial loads. The object of the study is a pattern of stress distribution inside the traverse elements. Methodology is proposed for modeling and analyzing stress-strain states of the casting crane traverse based on strength calculations considering allowable stresses and FEM. Calculation scheme and equivalent model were developed, and FEM calculation was performed in CAD/CAE system. Regularity of stress distribution in the traverse is obtained, and possible ways to further research are identified.

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Adapters for metallurgical equipment

Abstract: New type of shock absorbers named as ‘adapter’ and prospects of their usage for reduction of contact stress maximum values in assemblies and details of metallurgical equipment are considered. Some industrial examples of adapters usage are shown.

Cited by 10 publications

References 16 publications

Dynamical processes in a multi-motor gear drive of heavy slabbing mill

Dynamical processes in a multi-motor gear drive of heavy slabbing mill

Study of polymer adhesion to steel

Analysis of stress-strain states of casting crane traverse

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