Heating air gap adjustable disk and permanent magnet induction heating device

Abstract

The application relates to the technical field of magnetic induction heating, in particular to a heating air gap adjustable magnetic disc and a permanent magnet induction heating device. The heating air gap adjustable magnetic disc comprises a base, magnetic lobe assemblies and an adjusting mechanism. The magnetic lobe assemblies are at least two and are arranged on the base in sliding fit with the base. All the magnetic lobe assemblies are annularly distributed around the central axis of the base. The adjusting mechanism is arranged on the base and is used for synchronously moving all the magnetic lobe assemblies along the radial direction of the base to approach or move away from the central axis of the base. The heating air gap adjustable magnetic disc of the application can adapt to the heating of hubs of various specifications and sizes by driving the magnetic lobe assemblies to synchronously approach or move away from the central axis of the base along the radial direction of the base through the adjusting mechanism, can adjust the heating air gap between the permanent magnet and the hub without replacing the magnetic disc, is favorable for controlling the heating efficiency and the beat, prevents the hub from being scrapped due to overheating, has a small volume and simple operation, and realizes low cost and high efficiency.