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- Autors
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Melnikova L. V., Shestaka A. I., Boyko A. O.
- Issue
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Hoisting and transport equipment, 2023, №1(68)
- Pages
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39-55
- DOI
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10.15276/pidtt.1.68.2023.04
- Abstract
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An analysis of the operation of the portal crane rotation mechanism was conducted to identify the reasons for failures in the existing control scheme after modernization. It was found that although the rotation speed of the electric motors in the rotation mechanism is the same, the torques on the motor shafts are different. Possible reasons for this phenomenon were considered, and methods of their elimination were discussed. A variant of modernizing the electric drive scheme, taking into account the shortcomings of the previous one, which complicated the crane's operation, was proposed. A technical solution for balancing loads in the drives of the crane rotation mechanism was suggested. The correctness of the proposed technical solution was verified through modeling of transient processes in the electric drive of the rotation mechanism.
- Keywords
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electric drive, rotation mechanism, load, multi-motor drive.
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