Follow-up transmission mechanism for conveying cleaning electrodes in international thermonuclear experimental reactor

Abstract

A follow-up transmission mechanism for conveying cleaning electrodes in an international thermonuclear experimental reactor solves the problem that potential safety hazards exist due to the fact that a driving motor needs to be moved, turned and steeved when GDC (glow discharge cleaning) electrodes in the prior art are conveyed from the outside to a thermonuclear fusion experimental reaction chamber. The follow-up transmission mechanism is characterized in that a GDC electrode conveying trolley is connected with a fixed rod of a follow-up lug rod through a connecting shaft and provided with a circular arc-shaped sliding groove, and the follow-up lug rod is slidably connected with the circular arc-shaped sliding groove through a connecting shaft. The follow-up transmission mechanism has the advantages that by the aid of a four-linkage mechanism and a cam linkage mechanism which are skillfully designed together, the driving motor does not need to be moved, turned and steeved, so that the GDC electrodes can move radially along a radial rail, the freedom degrees of the GDC electrodes moved to the reaction chamber in turning and steeving movement are realized, the requirement on conveying of the GDC electrodes in the international thermonuclear experimental reactor ultrahigh vacuum (10-6Pa), powerful neutron irradiation and high-temperature (25 DEG C) environments is met, and the follow-up transmission mechanism is simple in structure, safe and reliable in operation, long in service life and simple and convenient in maintenance.

Description

technical field [0001] The invention belongs to the technical field of mechanical transmission for thermonuclear fusion test, in particular to a follower transmission mechanism for transmitting DC glow discharge cleaning electrodes (GDC electrodes) in a thermonuclear fusion test reactor (ITER). Background technique [0002] In the technology of the thermonuclear fusion test reactor (ITER), it is necessary to transport the DC glow discharge cleaning electrode (hereinafter referred to as the GDC electrode) from the outside to the thermonuclear fusion test reaction chamber through the transmission mechanism. The transmission mechanism in the prior art includes GDC electrodes, GDC electrode transmission vehicles and radial tracks. Since the GDC electrodes have movements (radial movement) and elevation (rotation of 60°) during the transmission process, in order to realize For these two actions, the existing design is to install a moving drive motor and a rotating and raising driv...

AI Technical Summary

Problems solved by technology

The transmission mechanism in the prior art includes GDC electrodes, GDC electrode transmission vehicles and radial tracks. Since the GDC electrodes have movements (radial movement) and elevation (rotation of 60°) during the transmission process, in order to realize For these two actions, the existing design is to install a moving drive motor and a rotating and raising drive motor on the GDC electrode transport vehicle respectively. However, because the existing motors cannot meet the ultra-high vacuum ( 10 -6 pa), strong neutron radiation and high temperature (250°C) environment, there are safety hazards in the transmission process, and the service life is low, maintenance is inconvenient, and the existing technical solutions need to be improved

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