One. Permanent anti-loose method
Spot welding, riveting, bonding, etc. In this method, most of the threaded fasteners are crushed during disassembly and cannot be reused.
Two, friction anti-loose method
This is the most widely used anti-loosening method. This method produces a positive pressure between the thread pairs that does not follow the external force to produce a friction force that can restrain the relative rotation of the thread pairs. This positive pressure can be achieved by pressing the thread pair axially or simultaneously in two directions.
Three, riveting and anti-loosening method
After tightening, Hex Bolts adopts methods such as punching, welding, bonding, etc., so that the thread pair loses the characteristics of the movable pair and the connection becomes impossible to disconnect. The disadvantage of this method is that the bolt can only be used once, and the disassembly is very difficult, and the bolt pair must be crushed to be disassembled.
Four, mechanical anti-loosening method
Use split pins, stop washers, and string wire ropes. The mechanical anti-loosening method is relatively reliable, and the mechanical anti-loosening method should be used to deal with important connections.
