Nut assembly with reliable locking performance

Abstract

The invention provides a nut assembly. The nut assembly comprises a locking nut, a driving nut and an elastic washer. The locking nut comprises an outer thread and an inner thread which are coaxial but different in rotating direction. The locking nut is provided with an external reducing part. The outer diameter of the reducing part is increased progressively from the side of the outer thread to the other side, and at least one slot is formed inward from the end surface of the tail of the locking nut; the driving nut is provided with a driving thread engaged to the outer thread of the lockingnut, a reducing structure is also arranged on the inner wall of the driving nut, the slope or the slope progressive increase rate of the reducing structure is not greater than the slope or the slope progressive increase rate of the reducing part, and the slots of the locking nut can stretch inward to cross a contact position of the reducing structure and the reducing part; and the elastic washer can be mounted on an equal diameter part of the outer thread of the locking nut in a sleeved manner, and can be limited by the driving nut. The nut assembly provided by the invention has a good anti-loosening effect.

Description

technical field [0001] The invention belongs to the field of fasteners, and in particular relates to a novel lock combination nut. Background technique [0002] Fasteners are a type of mechanical parts used for fastening connections and are widely used. They can be seen in various types of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters, etc. Various fasteners. The purpose of fasteners is fastening. Once the fasteners loosen or fall off due to factors such as vibration and impact, it may cause equipment and machinery to lose their functionality, disintegrate, and even endanger personal safety. At present, more than 80% of the current mechanical equipment accidents are caused by the loosening of fasteners. [0003] In order to avoid various problems caused by the loosening of fasteners, technicians from various countries have continued to research and develop, and later there have been many methods to further impro...

AI Technical Summary

Problems solved by technology

[0003] In order to avoid various problems caused by the loosening of fasteners, technicians from various countries have continued to research and develop, and later there have been many methods to further improve product fastening, such as adding spring washers, pins, using double nuts, etc., forming self-locking nuts, High lock nuts and other products with anti-loosening and anti-vibration functions, but there is still a risk of loosening

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