1. Use double nuts to prevent loosening
The simplest way is to use two identical nuts to screw on the same bolt, and attach a tightening torque between the two nuts to make the bolt connection reliable.
2.The combination of nuts and lock washers
Combination of special lock nut and lock washer
The special locking nut is not a hexagonal nut, but a round nut. There are 3 or 8 notches on the circumference of the nut. These notches are both the focus of the tightening tool and the clamping place of the locking gasket bayonet.
3. Drilling and countersunk screws
Threaded holes (usually 2, 90 distribution on the outer surface of the nut) are drilled through the outer surface of the nut to the inner thread surface to screw in a small diameter countersunk screw, the purpose is to exert a centripetal force on the thread to prevent the lock nut from loosening. This lock nut is gradually applied to the shaft end locking of rotating motion parts, such as the anti-loosening of ball screw mounting end bearings.
4.The two-part combination bite class
Composed of two parts, each part has a staggered CAM, because the internal wedge design slope Angle is greater than the nut Angle of the bolt, this combination will be tightly fastened into a whole, when vibration occurs, the DISC-LOCK lock nut convex parts of each other, resulting in lifting tension, so as to achieve the perfect locking effect.
5. Other types
All-metal lock nut
It has the characteristics of high strength, strong earthquake resistance, heat resistance and reusable. Its core is used in high vibration mechanical equipment such as high-speed rail cars, road construction machinery and mining equipment.
Nylon lock nut
It is a new type of high seismic anti-loose nut, which can be used in most of the high vibration machinery and home appliances, with good anti-loose effect and high cost performance, but the disadvantage is that it can only be used once and can not be applied in high temperature conditions.
Post time: Oct-25-2024
