Locking double-end stud assembly structure with stopping station

A double-ended stud and component structure technology, applied in the direction of locking fasteners, threaded fasteners, screws, etc., can solve the problems of unreasonable structural design and scrapping of special fasteners for connection and anti-loosening, and achieve a qualified rate Improve and ensure the assembly requirements, the effect is remarkable

Inactive Publication Date: 2019-04-02
GUIZHOU AEROSPACE PRECISION PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a locking double-ended stud assembly structure with a stopper to solve the unreasonable structural design of the special fasteners used for connection and anti-loosening in the existing aerospace industry, which will cause a high probability of being scrapped during assembly , an urgent problem to be solved

Method used

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  • Locking double-end stud assembly structure with stopping station
  • Locking double-end stud assembly structure with stopping station
  • Locking double-end stud assembly structure with stopping station

Examples

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Embodiment

[0015] Refer to attached Figure 5 , this embodiment provides a locking stud assembly structure with a stop table, including a locking ring 1 and a stud 2, the middle of the stud 2 is processed with straight teeth 21 along the circumferential direction, straight One end of the tooth 21 is processed with a stopper 22. Both the straight tooth 21 and the stopper 22 are integrated with the stud 2. Structure, the root of the connection between the stopper 22 and the straight tooth 21 is provided with an undercut 23, the width of the undercut 23 is 0.4-0.5mm, and the size of the bottom of the undercut 23 is 0.05 smaller than the small diameter of the straight tooth 21 -0.1mm, that is, the groove bottom depth of the undercut groove 23 is 0.05-0.1mm smaller than the minor diameter of the straight tooth 21 .

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Abstract

The invention belongs to the field of fasteners special for connection and looseness-proof of aerospace, and provides a locking double-end stud assembly structure with a stopping station. The lockingdouble-end stud assembly structure with the stopping station includes a locking ring and a double-end stud, straight teeth are arranged on the middle of the double-end stud in the circumferential direction, the stopping station is arranged at one ends of the straight teeth, a tool withdrawal groove is formed in the root of the joint of the stopping station and the straight teeth, the width of therelief escape is 0.4-0.5mm, and the groove bottom size of the tool withdrawal groove is 0.05-0.1mm smaller than the small diameter of the straight teeth. The problems that existing fasteners special for connection and looseness-proof of aerospace are not reasonable in structure design and high-probability scrapping is caused during installation are solved.

Description

technical field [0001] The invention relates to a locking stud assembly structure with a stop table, which belongs to the field of special fasteners for aerospace connection and anti-loosening. Background technique [0002] At present, the connection and anti-loosening special fasteners used in aerospace refer to figure 1 , the two parts of the locking ring 1 and the double-ended stud 2 are assembled and then rolled at both ends, and the locking ring 1 can move axially, and cannot slide out or fall off. As the components are assembled, the locking ring 1 (see figure 2 ) internal teeth need to be fitted into studs 2 (see image 3 ) of the straight tooth part, one end of the straight tooth has a raised outer circle as a stopper to control the L and L1 dimensions after assembly, because of the special structure of the stud 2 straight tooth end with a stopper, resulting in the double-ended stud 2. When rolling straight teeth, the root of the tooth shape will cause defects su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/04F16B39/282
Inventor 董贵芳赵艳艳李爱萍牟军
Owner GUIZHOU AEROSPACE PRECISION PRODS
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