How to prevent the loose in the use of T nuts

The T nuts is commonly used in life and industrial fasteners, one of the biggest problems and hidden dangers in using is loose and sliding, that how to prevent the screw nut and other fastener in use is not loose, not to tell you some locking points below:

The first is a locking screw friction.This is the most widely used a way of locking, this way between the thread deputy produce a positive pressure does not change with the external force, to produce a can prevent thread pair of relative rotating friction.The positive pressure by axial or two at the same time to the compression screw pair.If use T nuts,elastic washer, double nut, locking nut, nylon insert lock nut and so on.This way of locking nut for disassembly is more convenient, but in the case of shock, vibration and variable load, the beginning bolt pre-tightening force caused by loose will be reduced, with the increase of vibration frequency, slowly increase, loss of pre-tightening force will eventually lead to loose nut, screw thread connection failure.

The second way is to mechanical locking screws.Is to use stop limit screw directly is the relative rotation vice.If use split pin, the steel wire and check washer and so on.Due to not stop pre-tightening force, nut loose back to the stop position when the locking piece to stop work, so, in fact this way instead of locking to prevent loss.

The third way is rushed locking screws riveting.After tightening by adopting the method of impact point, welding, bonding, make vice lose caused by the characteristics of connecting thread not detachable connection.The shortcoming of this approach is a bolt rod can be used only once, and remove the very difficult, must destroy the bolt can remove.

The fourth way is locking screw structure.Structure is the use of thread vice themselves, that is way down thread locking.Before three kinds of locking approach relies on a third party into the locking force, is mainly refers to the friction, the locking effect is good or bad depends on the size of the force of a third party.The locking structure does not rely on any third party, only rely on their own structure.Mode locking down namely thread locking structure, is currently the most advanced and best way of locking, but not known to most people.