| 摘要 |
<p>Spring latching mechanisms for preventing relative rotation or relative displacement of assembled components (56a,94) during operation of a nuclear reactor. The first type of mechanism prevents rotation of a threaded fastener (54) which fastens a first component (94) to a second component (56a). The fastener (54) has a multiplicity of longitudinal recesses (54b) formed on an outer circumferential surface thereof. The spring latching mechanism has a cantilever beam (102) supported at one end by the first component (94). The other end of the cantilever beam is displaceable between first and second positions as the cantilever beam flexes. An interlocking member (102b) connected to the second end of the cantilever beam engages one of the longitudinal recesses in the fastener, whereby rotation of the fastener can be blocked. The second type of mechanism positively locates and prevents vibration-induced wear of first and second components assembled with play therebetween. The latter spring latching mechanism is a double cantilever spring installed between the first and second components in a flexed state with latched engagement and sufficient preload to prevent rubbing of the first and second components against each other. The double cantilever spring has one leg in contact with the first component and the other leg in contact with the second component.</p> |
