Electromagnetic actuator of capsule robot

Abstract

The invention belongs to the technical field of electromagnetic propulsion, in particular to an electromagnetic actuator of a capsule robot. The electromagnetic actuator of a capsule robot comprises a stator and a rotor, wherein the stator comprises brackets, a casing, a coil and a gasket, and the rotor comprises a magnetizer, a magnetization gasket, magnetic steel and a magnetization end cap; the magnetizer is arranged in the casing of which two ends are provided with the brackets; the magnetizer is provided with the magnetization end cap; a plurality of magnetic steel and magnetization gaskets are arranged at interval in the space formed by the magnetization end cap and the magnetizer; a plurality of coils and gaskets are arranged at interval among the magnetic steel, the magnetization gaskets and the magnetizer; the magnetizer, the magnetization end cap, the magnetic steel and the magnetization gaskets can carry out axial reciprocating motion relatively to the coil and the gaskets; and the brackets on two ends are respectively abutted with the coils. The invention has the advantages of simple structure, small volume, large output force, low power consumption, high utilization ratio and the like.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic drive, in particular to an electromagnetic drive for a capsule robot. Background technique [0002] Capsule robot is a kind of human digestive tract inspection robot. It is the product of the application of robot technology in the medical field. It has the advantages of convenient inspection, no trauma, no pain, no cross-infection, and does not affect the normal work of patients. The method of choice for the diagnosis of disease, especially small bowel disease. The "internal force-friction" capsule robot has no external drive mechanisms such as legs and wheels. It is named for its shape resembling a capsule. It is driven by the internal force of the system and the friction with the external environment. Based on the driving method of the "internal force-friction" type capsule robot, the driver is required to have the characteristics of small size, low power consumption, and large output f...

AI Technical Summary

Problems solved by technology

The screw drive method is to make the capsule body rotate relative to each other, and the capsule is driven by the action of the thread on the outer surface of the capsule and the mucus in the intestinal tract; due to the limitation of the drive mechanism, the efficiency of this drive method is low in areas with large diameters of the digestive tract

However, in the way of using an in vitro magnetic field to drive the capsule to rotate, the structure of the driver and the control process of the capsule are very complicated, which is not convenient for practical application.

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