Heavy load hoisting mechanism used for maintenance of nuclear fusion device parts

Abstract

The invention discloses a heavy load hoisting mechanism used for maintenance of nuclear fusion device parts. The heavy load hoisting mechanism comprises a machine frame located on the top in a part transfer trolley. The machine frame is located on the top in the part transfer trolley. The whole hoisting mechanism is supported by wheels acting on bosses on the inner side face of the part transfer trolley, and the horizontal movement of the mechanism is achieved. A plurality of open grooves are formed in the machine frame. The two sides of the top of the machine frame are each provided with the corresponding four heavy load wheels so that the whole hoisting mechanism can be supported. Gear drive systems are arranged on the two sides of the upper portion of the machine frame respectively. The two sides of the bottom of the machine frame are each provided with a hydraulic lifting drive system and a ball screw drive system. The heavy load hoisting mechanism has the advantages that rigid and stable hoisting of maintenance parts and maintenance tools with the weight of 15-20 tons can be achieved, continuous work of a part transfer mechanism is achieved, the utilization rate of the transfer mechanism is increased, multiple parts can be maintained at a time, and the maintenance efficiency of the whole system is improved.

Description

technical field [0001] The invention relates to the technical field of nuclear fusion reactor engineering, in particular to a heavy-duty hoisting mechanism used for maintenance of nuclear fusion device components. Background technique [0002] Nuclear fusion energy is a relatively clean new type of energy. It has the characteristics of less raw material consumption, abundant resources, and less radioactive pollution. Therefore, the research on controlled nuclear fusion has attracted more and more attention from all over the world. Tokamak magnetic confinement fusion is considered to be one of the most promising avenues for the commercialization of fusion energy. The Tokamak device includes an annular vacuum chamber for fusion reaction to occur. During the operation of the device, the first wall components in the vacuum chamber (such as divertors, cladding, window inserts, etc.) Plasma thermal shock and neutron irradiation will cause varying degrees of damage after a period ...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: (1) the number of parts transfer vehicles required is large, the docking and separation process takes a long time, and the maintenance cost is high; The transfer mechanism cannot transfer the parts to be maintained that have been moved to the maintenance window of the vacuum chamber, resulting in a low utilization rate, which in turn reduces the maintenance efficiency of the entire system

Various hoisting mechanisms currently developed have large volume, heavy weight, and poor rope hoisting stability, which cannot be applied in a vacuum nuclear environment.

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