How many ways to prevent bolt loosening?

A loose bolt may cause the whole production equipment to stagnate, and make the enterprise suffer huge losses, and even in some applications, the loose bolt will lead to serious safety accidents.
So what should we do to prevent the bolts from loosening? How many ways to prevent bolt loosening?
Effects of bolt loosening:
A loose bolt may cause the whole production equipment to stagnate, and make the enterprise suffer huge losses, and even in some applications, the loose bolt will lead to serious safety accidents.
So what should we do to prevent the bolts from loosening? How many ways to prevent bolt loosening?
There are several ways to prevent bolt loosening:
Hydraulic wrench can be divided into three kinds: friction, direct locking and broken thread movement.
1.Friction and prevention: produce a positive pressure that does not change with the external force between the thread pair to produce a friction force that prevents the relative rotation of the thread pair.
This positive pressure can be achieved by axial or lateral or simultaneous double thread tightening.
2.Direct locking: use the stop parts to directly limit the relative rotation of the thread pair. 3.Disruption of the thread movement relationship: after tightening, the punching point, welding, bonding and other methods are adopted, so that the thread pairs lose its movement characteristics and the connection becomes a non-detachable connection.
Using fine tooth thread, using its small rising Angle to achieve friction anti-loosening, or while taking two anti-loosening methods, complement each other, are a better design idea. One of the reasons why the thread diameter is more than 10 mm and many mechanical bolt nuts bear the variable load, all use thin teeth.
Common hydraulic wrench screw connection against loosening methods and skills, screw connection and double stud connection is also applicable. Hydraulic tensile device and hydraulic wrench are both important tools for tightening and dismantling bolts.
They are widely used in the construction, maintenance inspection, emergency repair and other work of ships, petrochemical industry, construction, electric power, mining, metallurgy and other industries.
Their use can not only reduce the labor intensity, improve the work efficiency, but also greatly improve the quality of installation, but also conducive to the construction site safety and work efficiency management.