Bolts are widely used tools in fixtures, and long-term use will lead to an array of issues such as connection relaxation, insufficient clamping force and bolt rust. When processing parts for production or assembly lines, loose bolt connections could compromise quality and efficiency; but how can anti-loosening measures be implemented?
Relying on the spring force of the spring washer after being flattened to play the role of anti-loosening.
The anti-loosening method is simple; easy to use, because the spring washer elasticity is not uniform, so the anti-loosening effect is poor, generally used for less important occasions.
On the basis of the original single nut to increase a lock nut, so that the two nuts against the top of the tightening, mutual compression, thus preventing the nut from loosening.
The anti-loosening method has a simple structure; it is easy to use and is mainly used for low speed, heavy load and smooth load occasions.
One end of the self-locking nut has a non-circular closure or open closure, when the self-locking nut is screwed into the external threads, the nut closure will be opened and a radial elasticity will be applied to the external threads to realize the anti-loosening.
This method is simple in structure, reliable in loosening and can be disassembled many times, and can be used for more important connections.
The cotter pin is used to fix common nuts and bolts to prevent loosening.
The cotter pin hole needs to be drilled after the nut is tightened: this method is inconvenient to use although it is highly reliable in preventing loosening: it is only suitable for occasions with high requirements for preventing loosening; single piece or small batch use.
The use of two ears of the stop washer to nuts or bolts and connectors respectively to achieve anti-loosening. This method is reliable to prevent loosening, but the structure is complex, high space requirements, cumbersome assembly is suitable for the high requirements of anti-loosening; with a curved ear to accommodate space and small quantities of occasions.
The use of steel wire into a group of bolt head special holes, so that all the bolts are connected in series to restrain each other and achieve the purpose of anti-loosening.
This method is reliable but applicable to bolt group anti-loosening.
Note: According to the different rotation of the bolt, the steel wire threading direction is also different.
The picture shows the right-hand threaded steel wire threading direction.
This anti-loosening method is a destructive anti-loosening method: after the nut has been tightened, it is necessary to rivet the exposed part of the end of the bolt stem.
This method is suitable for low-strength bolts that do not need to be disassembled.
The anti-loosening method is also a destructive anti-loosening method; after the nut is tightened, the end of the threads of the bolt is punched at the point where the nut is screwed together, destroying the bolt threads and thus preventing the nut from loosening.
This method is reliable; it is suitable for occasions with high anti-loosening requirements and does not need to be disassembled.
The adhesive is applied to the threads, and after the internal and external threads are screwed together, the internal and external threads are fixed together by the curing effect of the adhesive, so as to realize the purpose of anti-loosening.
This method is simple to use and low cost, but the anti-loosening performance is related to the performance of the adhesive, so it is necessary to choose the matching adhesive according to different anti-loosening requirements.
The above are a few tips and tricks that Yunteng puts forward to prevent loosening, and I hope that they can help you all
In addition, if you need high quality fasteners, you can contact us!
