Influence of a corner of shift of cranks on dynamics of roller forming installation taking into account dissipative properties of energetically balanced driving mechanism

Authors

DOI:

https://doi.org/10.31548/machenergy2019.01.019

Keywords:

roller forming installation, driving mechanism, effort, moment, rigidity, dissipation, dynam-ics.

Abstract

For roller forming installation with ener-getically balanced driving mechanism loadings in ele-ments of its design and the drive are calculated, depend-ences for definition of efforts in the connecting rods nec-essary for reduction in back and forth motion of forming carts, and normal reactions of guides of the movement of forming carts to the directing rollers depending on an angle of rotation of cranks are received. At a research of loadings the two-mass dynamic model of roller forming installation in which power and power characteristics of the driving engine and each of forming carts, rigidity of the driving mechanism and its dissipation are considered is used. Function of change of necessary torque on driving to a shaft of cranks for ensuring process of consolidation of products of construction mixes taking into account dissipation of the driving mechanism is defined. Rated power on which the electric motor is chosen is determined by average value of the moment of forces of resistance for a cycle of turn of cranks, connecting couplings and a reducer are picked up. Using Lagrange's equation of the second sort, for the roller forming installation with ener-getically balanced drive presented by two-mass dynamic model the differential equations of the movement are worked out. As a result of a numerical experiment for roller forming installation with energetically balanced
driving mechanism the value of the rigidity of the driving mechanism brought to an axis of rotation of cranks at which the minimum loadings in couplings of the driving mechanism are observed is defined. The dependence of the moment is installed in the drive coupling from the size of coefficient of dissipation and the recommended dissi-pation coefficient size for roller forming installation with energetically balanced driving mechanism is determined. Influence of a corner of shift of cranks on dynamics of roller forming installation with energetically balanced driving mechanism is analyses.

References

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Loveikin, V. S., Pochka, K. I., Romasevych, Yu. O. & Loveikin, Yu. V. (2018). Dynamic analysis of roller molding installation taking into account dissipative prop-erties balanced drive mechanism. Machinery & Energet-ics. Journal of Rural Production Research. Kyiv. Ukraine. Vol. 9, No. 3, 45-58. doi.org/10.31548/me2018.03.045.

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Published

2019-12-14

Issue

No. 10(1) (2019)

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Статті

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