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Self-locking nut with self-fixing spring

A self-locking nut and self-fixing technology, which is applied in the direction of nuts, screws, bolts, etc., can solve the problems of complex structure and non-self-fixation, and achieve the effect of improving self-locking performance, simple structure, reducing maintenance times and labor costs

Pending Publication Date: 2018-07-10
四川艾尔诺航空金属器材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems in the prior art that the structure is complex, the spring is arranged outside the nut body and cannot be self-fixed

Method used

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  • Self-locking nut with self-fixing spring

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with accompanying drawing, but should not be interpreted as that the scope of the subject matter of the present invention is limited to following embodiment, under the situation of not departing from above-mentioned technical idea of ​​the present invention, all according to the common technical knowledge of this field and Various modifications, substitutions and alterations made by conventional means are included within the scope of the present invention.

[0016] Such as Figure 1-4 As shown, a self-locking nut with a self-fixing spring includes a nut body 1 and a spring 2. The spring 2 is arranged in the nut body 1. The pitch of the spring 2 is consistent with the thread pitch of the nut body 1. The same pitch means that the helix of the spring 2 One turn, that is, the length of one turn of the nut thread after 360° is the same; wherein, the main function of the nut body 1 is to bear the l...

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Abstract

The invention provides a self-locking nut with a self-fixing spring and belongs to the technical field of rail transit equipment. The self-locking nut comprises a nut body and a spring, wherein the spring is arranged in the nut body; the screw pitch of the spring and the screw pitch of the nut body are the same; a round hole and a straight groove are formed in a hexagonal surface of the nut body;a first convex body and a second convex body are arranged at the front and rear ends of the spring respectively; the first convex body is arranged in the round hole and the second convex body is arranged in the straight groove. The self-locking nut provided by the invention has a simple structure; the spring is arranged in the nut body and has a fixing function; the spring has stretching and retracting performance so that the self-locking performance of the nut can be effectively improved; in a utilization process, a nut and bolt fastening system can be not loosened for a long time, and the number of times of repairing and the labor cost are effectively reduced.

Description

technical field [0001] The invention relates to a self-locking nut with a self-fixing spring used in the rail transit field. technical background [0002] At present, many fastening connection systems with nuts and bolts are used on bullet trains, high-speed rail locomotives, and rails. However, ordinary nuts and bolts fastening connection systems have poor locking performance due to ordinary threaded connections. Loosening phenomenon requires frequent inspection and tightening. [0003] Chinese Patent No. 201520239929.X Application Date: 2015-04-20 discloses a spring self-locking nut, including a nut body, the inner wall of the nut body is provided with threads, and the tail of the nut is provided with a tray, the tray A spring seat is provided on the inner wall of the spring seat, a spring is provided inside the spring seat, and a baffle is provided at the upper end of the spring. Its disadvantages are: the structure is complicated, the spring is arranged outside the nut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/282F16B37/00
CPCF16B37/00F16B39/282
Inventor 刘智昂邹刚李鹏翔
Owner 四川艾尔诺航空金属器材有限公司
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