Research of a contact stresses in swivel elements of flexible shaft in screw conveyor for transportation of agricultural materials
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Kuupäev
2022
Kättesaadavus
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian Academic Agricultural Society
Abstrakt
The paper presents the new design of the rotating part with
ball-bearing swivel joints between its sections for flexible screw
conveyors. The new design provides for the improvement of the operation
efficiency and loading capacity, the enhancement of the technological
capabilities and the reduction of the admissible curvature radius. The
contact stresses in the swivel element as the most loaded area in the
rotating part have been analysed. It has been established that the maximum
contact stresses arise at the points of contact between the ball and the flat
surface of the slot in the cylindrical bushing. The recommended design
limitation range for the cavity cone angle is within about 30–50. The
relation between the loads and the stresses depending on the operating
conditions has been modelled with the use of computer modelling. The
comparison of the computer modelling results and the obtained calculation
data has proved that the difference between the respective values varies
within the range of 11–26%.
Kirjeldus
Saabunud / Received 12.03.2022 ; Aktsepteeritud / Accepted 28.04.2022 ; Avaldatud veebis / Published online 28.04.2022 ; Vastutav autor / Corresponding author: Jüri Olt ; jyri.olt@emu.ee
Märksõnad
bulk agricultural materia, contact stress, flexible screw conveyor, pipe, section, articles