Bryansk, Bryansk, Russian Federation
UDC 621.0
UDC 621.867
Russian Library and Bibliographic Classification 399
The pulley ovality causes fluctuations in the angular velocities of the conveyor pulleys, which can cause resonant vibrations and intense wear of the belt, spillage of cargo, and increased energy consumption. The paper objective is to determine the effect of cylindrical surface warp of the drive pulley shell on the operation of the belt conveyor. Study method: geometric analysis and computer simulation of the movement of the conveyor belt with an oval pulley as a multi-mass dynamic system, taking into account the mechanical characteristics of the belt drive, using the Universal Mechanism (UM) software package. The novelty of the work consists in the analysis of kinematic excitations of the conveyor belt in ovality and warp of the longitudinal axis of the pulley shell, and the development of a computer model of the contact interaction of the belt with an oval pulley. Results. A computer multi-mass dynamic model is developed, which makes it possible to determine the nature of the belt movement on an oval-shaped drive pulley. The cause of oscillations of pulley angular velocities and the movements of the tension roll is the periodic change in the moment of friction of the belt on the surface of the drive pulley due to a change in the warp of the transverse surface of the oval pulley. A computer model and found patterns can be used in the design of conveyor belts. Conclusions. Exceeding the belt coverage angle of the drive pulley with an oval shell of 180° increases the unevenness of angular speeds of pulley rotations and the vibration of units. When using an asynchronous oval pulley drive, the irregularity of pulleys angular velocities is several times less than with a constant torque drive.
conveyor belt, drive, pulley, ovality, vibrations, computer model, mechanism
1. Reutov AA. Installation, operation and repair of belt conveyors. Bryansk: Publishing house of BSTU; 2008.
2. GOST 33228-2015. Steel welded pipes for general purposes. Specifications. Moscow: Standartinform; 2015.
3. Zhu H, Zhu WD, Fan W. Dynamic modeling, simulation and experiment of power transmission belt drives: systematic review. Journal of Sound and Vibration. 2021;491:115759. DOIhttps://doi.org/10.1016/j.jsv.2020.115759.
4. Wang X, Zhu W. Dynamic analysis of an automotive belt-drive system with a noncircular sprocket by a modified incremental harmonic balance method. ASME J. Vib. Acoust. 2017;139:011009.
5. Zhu H, Zhu W, Hu Y. Periodic response of a timing belt drive system with an oval cogged pulley and optimal design of the pitch profile for vibration reduction. ASME J. Comput. Nonlinear Dyn. 2018;13:011014.
6. Zhu H, Hu YM, Zhu WD, Long HQ. Dynamic responses of an engine front-end accessory belt drive system with pulley eccentricities via two spatial discretization methods. Journal of Automobile Engineering 2018;232(3):095440701770323. DOhttps://doi.org/10.1177/0954407017703231
7. Zhu H, Hu Y, Zhu WD. Multi-objective design optimization of an engine accessory drive system with a robustness analysis. Appl. Math. Model. 2020;77:1564–1581.
8. Zhu H., Hu Y., Zhu W.D. Optimal design of an autotensioner in an automotive belt drive system via a dynamic adaptive PSO-GA. ASME J. Mech. Des. 2017; 139: 093302.
9. Zhu H, Zhu WD, Hu YM, Wang XF. Periodic response of a timing belt drive system with an oval cogged pulley and optimal design of the pitch profile for vibration reduction. ASME J. Comput. Nonlinear Dyn. 2018;13(1):011014.
10. Pellicano F, Fregolent A, Bertuzzi A, Vestroni F. Primary and parametric non-linear resonances of a power transmission belt: experimental and theoretical analysis. J. Sound Vib. 2001;244(4):669–684.
11. Cepon G, Boltehar M. Dynamics of a belt-drive system using a linear complementarity problem for the belt–pulley contact description. J. Sound Vib. 2009;319:1019–1035.
12. Reutov AA. Self-oscillation of the belt on the conveyor drive pulley. Mining Informational and Analytical Bulletin. 2013;1:189-191.
13. Reutov AA. Modeling of belt conveyor drives. Bryansk: Publishing House of BSTU; 2011.
14. Kong L, Parker RG. Vibration of an axially moving beam wrapping on fixed pulleys. J. Sound Vib. 2005;280(3–5):1066–1074.
15. Kaczmarczyk S, Mirhadizadeh S. Quasi-stationary mechanics of elastic continua with bending stiffness wrapping on a pulley system, J. Phys. 2016;721:012011.
16. Suweken G, Van Horssen WT. On the weakly nonlinear, transversal vibrations of a conveyor belt with a low and time-varying velocity, Nonlin. Dyn. 2003;31(2):197–223.
17. Kong L, Parker RG. Steady state mechanics of belt-pulley systems, ASME J. Appl. Mech. 2005;72(1):25–34.
18. Universal Mechanism. Mechanical System as an Object for Modeling. User’s manual [Internet]. 2020. Available from: http://www.universalmechanism.com/download/90/eng/02_um_technical_manual.pdf.
19. Reutov AA. Modeling of the flexible belt motion on the drive pulley of woodworking equipment. International Scientific and Practical Conference 23–24 October 2019: Forest Ecosystems as Global Resource of the Biosphere: Calls, Threats, Solutions; Voronezh (RF); 2019. DOIhttps://doi.org/10.1088/1755-1315/392/1/012056.
20. Reutov AA. Modeling the interaction of the belt with a skewed conveyor pulley. News of the Ural State Mining University. 2019;3(55):133-140. DOIhttps://doi.org/10.21440/2307-2091-2019-3-133-140.
21. DIN 22101 Continuous conveyors. Belt conveyors for loose bulk materials. Basis for calculation and dimensioning. English translation of DIN 22101:2011-12. Berlin: Deutsches Institut für Normung.
