<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>When using complex spatial patterns for transportation, the straight screw conveyors have a series of obvious disadvantages. This paper presents a design of a flexible screw sectional working body that allows increasing the functional and operational characteristics of screw conveyors used in the transportation of bulk agricultural materials. A mathematical model of the dynamic system of a flexible screw conveyor has been established, and dynamic starting torques have been calculated at the rated load of loaded screw, and when the system is braking. Analysis of the results obtained shows that, with significant damping coefficients, the start-up transition process occurs smoothly, and the load reaches its rated value without torque and speed fluctuations. It has been established that fast braking significantly increases the dynamic loads that may exceed the maximum critical torque of the electric motor (by 50–70% on average) and the rated load torque (by 2.5–3 times).</p>
</abstract>

When using complex spatial patterns for transportation, the straight screw conveyors have a series of obvious disadvantages. This paper presents a design of a flexible screw sectional working body that allows increasing the functional and operational characteristics of screw conveyors used in the transportation of bulk agricultural materials. A mathematical model of the dynamic system of a flexible screw conveyor has been established, and dynamic starting torques have been calculated at the rated load of loaded screw, and when the system is braking. Analysis of the results obtained shows that, with significant damping coefficients, the start-up transition process occurs smoothly, and the load reaches its rated value without torque and speed fluctuations. It has been established that fast braking significantly increases the dynamic loads that may exceed the maximum critical torque of the electric motor (by 50–70% on average) and the rated load torque (by 2.5–3 times).

A Study of Dynamic Loads of a Flexible Sectional Screw Conveyor

National University of Life and Environmental Sciences of Ukraine

Central Ukrainian National Technical University

Slovak University of Agriculture in Nitra

Latvia University of Life Sciences and Technologies

Acta Technologica Agriculturae

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"A Study of Dynamic Loads of a Flexible Sectional Screw Conveyor"}

When using complex spatial patterns for transportation, the straight screw conveyors have a series of obvious disadvantages. This paper presents a design of a...

A Study of Dynamic Loads of a Flexible Sectional Screw Conveyor

Published Online: Aug 12, 2022

Page range: 131 - 136

DOI: https://doi.org/10.2478/ata-2022-0020

Keywords
transportation, bulk material, flexible screw conveyor, model

© 2022 Volodymyr Bulgakov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A Study of Dynamic Loads of a Flexible Sectional Screw Conveyor

Published Online: Aug 12, 2022

Page range: 131 - 136

DOI: https://doi.org/10.2478/ata-2022-0020

Keywordstransportation, bulk material, flexible screw conveyor, model

© 2022 Volodymyr Bulgakov et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
transportation, bulk material, flexible screw conveyor, model