Development of the system for air gap adjustment and skip protection of electromagnetic lifting unit

• Main Authors: Zhautikov B.A., Aikeyeva A.A.
• Format: Article
• Language: English
• Published: Saint-Petersburg Mining University 2019-02-01
• Series: Zapiski Gornogo Instituta
• Subjects: electromagnet; magnetic levitation; electromagnetic forces; unit
• Online Access: http://pmi.spmi.ru/index.php/pmi/article/view/6531

The efficiency of the electromagnetic lifting system is ensured by the well-coordinated work of all its parts and elements, namely those providing the strictly vertical movement of the skip. The deviation of the skip movement from the vertical axis can lead to a stop and damage of both the skip and the unit. Therefore, the air gap adjustment and skip protection system of the electromagnetic lifting system, which includes determining the size of the air gap between the electromagnet of the skip and the electromagnet of the aligning device, and the development of a stabilization system to ensure a constant air gap and regulate the current in the electromagnet winding, provide both a strictly vertical movement skip, and its protection. The article is devoted to the theoretical determination of the air gap between the electromagnets of the aligning device and the skip using the Biot – Savar – Laplace law.