“shear pin”的概念、定义、翻译、参考文献-科学参考

单词	shear pin
释义	shear pin [`shir ´pin] ^{DESIGN ENGINEERING} 1. A pin or wire provided in a fuse design to hold parts in a fixed relationship until forces are exerted on one or more of the parts which cause shearing of the pin or wire; the shearing is usually accomplished by setback or set forward (impact) forces; the shear member may be augmented during transportation by an additional safety device. 2. In a propellant-actuated device, a locking member which is released by shearing. 3. In a power train, such as a winch, any pin, as through a gear and shaft, which is designed to fail at a predetermined force in order to protect a mechanism.
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