| 摘要 |
<p>A refueling machine grapple is provided to prevent a grapple releasing device from reversely rotating by supplying resisting power when putting a steel ball for a grapple releasing device on a slot with power of a spring. A grapple housing(1) is a case constituting a body of a grapple. A grapple stop pin guide barrel(5) facilitates mounting by guiding the grapple to a nuclear fuel head(20) and sets an initial installation position of a nuclear fuel clamp bar axis(11). The nuclear fuel clamp bar axis draws the nuclear fuel inserted and installed inside the grapple housing in an axial direction. A grapple guide pin(10) is installed at one point of an upper end portion of the grapple housing and monitors a vertical pulling distance of the nuclear fuel clamp bar axis. A grapple guide axis(7) is installed at a lower portion of the nuclear fuel clamp bar axis and is a portion of a grapple releasing device(6) used to monitor coupling with the nuclear fuel. The grapple releasing device is inserted and installed at a circumferential portion of a center part of the grapple guide axis and releases the grapple in loading the nuclear fuel. A grapple chuck(3) is installed at an inner diameter portion of the grapple housing and lifts a nuclear fuel chuck fixing unit(21) formed at an upper portion of the nuclear fuel head while moving vertically.</p> |
