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In mechanical engineering, many machines require fasteners to be loose. On the one hand, it is a hard requirement for the operation of the equipment, and on the other hand, it is to prevent a series of safety events caused by loose screws. Therefore, the looseness of screws has an important importance in mechanical engineering.
Prevent loose screws
So how to prevent the screws from loosening? Here are a few ways.
1, the size of the size should be selected, slightly larger or smaller screws, maybe barely can be used at the moment, but for a long time, it will be loose, or locked.
2, friction and anti-loose. Keep the frictional resistance between the thread pairs to prevent looseness, such as adding a spring washer, a double nut, etc.
3, mechanical anti-loose. The relative rotation between the thread pairs, such as the slot nut and the split pin, is prevented by the stop member.
4. Destroy the thread to prevent loosening. Destroy and change the relationship of the thread pair, such as the impact method.
5. Use flange bolts and nuts directly.
6: Apply fastening agent, screw glue, etc.
Concerned about surprises
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