Guide self-locking bolt connecting assembly for blind hole and use method

A connecting component and guiding technology, applied in the direction of connecting components, bolts, threaded fasteners, etc., can solve the problems of unsatisfactory safety and reliability, high maintenance cost, low flight safety factor of aerospace vehicles, etc. Easy to manufacture, simple and reasonable in structure design

Inactive Publication Date: 2016-03-23
TIANJIN CHENGLI AVIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary self-locking bolts cannot meet the applications under these harsh conditions: they cannot meet the requirements in terms of safety and reliability, resulting in low flight safety factors and high maintenance costs for aerospace vehicles

Method used

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  • Guide self-locking bolt connecting assembly for blind hole and use method
  • Guide self-locking bolt connecting assembly for blind hole and use method
  • Guide self-locking bolt connecting assembly for blind hole and use method

Examples

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Embodiment Construction

[0017] In order to further understand the content, features, and effects of the present invention, the following examples are given to illustrate in detail as follows:

[0018] See figure 1 with figure 2 The present invention includes a self-locking bolt 1 composed of a head 3 and a threaded rod 4. At least one angular groove 5 extending in the axial direction is provided on the outer wall of the threaded rod 4.

[0019] Two guide pins 2 side by side are arranged in each corner groove 5. Such as image 3 As shown in the figure, the guide pin 2 includes a straight cylindrical guide pin body 7. A plurality of annular thread grooves 8 are provided on the outer wall of the guide pin body 7, and the distance between two adjacent annular thread grooves 8 is equal to the threaded rod 4 The pitch of the upper thread. Mounting ends 9 are provided at both ends of the guide pin body 7, and the depth of the angle groove 5 is greater than or equal to the diameter of the guide pin body 7.

[00...

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PUM

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Abstract

The invention relates to a guide self-locking bolt connecting assembly for a blind hole. The guide self-locking bolt connecting assembly for the blind hole comprises a self-locking bolt composed of a head and a threaded rod, wherein at least one angle groove extending in the axial direction is formed in the outer wall of the threaded rod; two parallel guide pins are arranged in each angle groove. Each guide pin comprises a flat and straight cylindrical guide pin body, wherein a plurality of annular threaded grooves are formed in the outer wall of the guide pin body, the distance between every two adjacent annular threaded grooves is equal to the thread pitch of the thread on the threaded rod, installation end sockets are arranged at the two ends of the guide pin body, and the depth of the angle grooves is larger than or equal to the diameter of the guide pin body. On the threaded rod, annular groove holes are formed in the two ends of each angle groove, and the installation end sockets at the two ends of each guide pin body are located in the annular groove holes in the two ends respectively. The invention further relates to a use method for the guide self-locking bolt connecting assembly for the blind hole.

Description

Technical field [0001] The invention belongs to the technical field of bolt connectors, and particularly relates to a guide self-locking bolt connection assembly for blind holes. The invention also relates to a method of using the guide self-locking bolt connection assembly for the blind hole. Background technique [0002] In the design of aerospace vehicle parts, a large number of fasteners are usually used as connections between components, among which high-performance fasteners are very expensive. During the flight of an aerospace vehicle, it vibrates all the time, and the vibration will cause looseness. The parts must have a self-locking function. With the self-locking function, the safety hazards caused by loosening can be effectively controlled, which is important for the safety of parts. Sexual requirements are greatly improved. There are many ways of self-locking nuts, but self-locking nuts cannot be used in blind holes, and the self-locking principles of many nuts cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/06
Inventor 陈立王鹏蒲国新陈成王洪军王宝秋李紫君
Owner TIANJIN CHENGLI AVIATION TECH CO LTD
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