EXTRACTION DEVICE Russian patent published in 2015 - IPC B66C1/66 

FIELD: physics, atomic power.

SUBSTANCE: invention relates to nuclear power engineering and can be used primarily for extracting foreign objects in heavy liquid-metal coolant nuclear reactors. The extraction device includes a housing, a pusher mounted inside the housing and capable of moving, a movable non-falling bar mounted at the axis of the housing, spokes mounted on axes in the housing and capable of turning about the axis, control plates mounted on the spokes and having cam grooves, rollers placed on the pusher which interact with the cam grooves. A disengagement unit has flags, bars inserted in the spokes and a net attached to the bars. A distance rod is mounted between a load and the net and is capable of falling. A load with a safety catch is mounted on the movable non-falling bar such that it can move relative to the disengagement unit by freeing the flags for automatic release of the bars and spokes. A cover is worn outside the housing.

EFFECT: enabling operation of mechanisms of an extraction device under the effect of high temperature of the coolant.

5 cl, 9 dwg