Nut assembly with reliable locking performance

A technology for locking nuts and components, applied in the direction of locking fasteners, nuts, threaded fasteners, etc., can solve problems such as loosening, and achieve the effects of convenient production and installation, excellent anti-loosening performance, and simple structure

Inactive Publication Date: 2019-01-04
AEROSPACE PRECISION PROD INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 f

Method used

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  • Nut assembly with reliable locking performance
  • Nut assembly with reliable locking performance
  • Nut assembly with reliable locking performance

Examples

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Embodiment Construction

[0023] In order to better understand the present invention, the present invention will be described in detail below in conjunction with specific drawings.

[0024] The nut assembly provided by the invention, such as figure 1 As shown, it includes a lock nut 1, a drive nut 2 and an elastic washer 3.

[0025] The lock nut 1 ( Figure 2-3 ) includes coaxial external threads 11 and internal threads 12 with different rotation directions. The external threads 11 and internal threads 12 are full threads at the equal diameter part of the locknut 1 where they are located, but are not limited to full threads, as long as they meet Lock the required thread length. The lock nut 1 is provided with an external diameter reducing part 13, the outer diameter of the reducing diameter part 13 increases from the side where the external thread 11 is located to the other side, and the shape of the reducing diameter part 13 can be tapered or other forms , such as an umbrella. The tail of the lock...

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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...

Claims

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Application Information

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IPC IPC(8): F16B37/00F16B39/282
CPCF16B37/00F16B39/282
Inventor 张亚晓刘方圆张晓斌唐伟
Owner AEROSPACE PRECISION PROD INC LTD
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