Bolt connecting nut anti-loosening structure

A technology for connecting nuts and bolts, which is applied in the direction of connecting components, nuts, bolts, etc., to achieve the effects of high structural reliability, reduced later use and maintenance costs, and easy disassembly and assembly

Active Publication Date: 2021-07-13
LANDING GEAR ADVANCED MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a bolted connection nut anti-loosening structure to overcome the deficiency of the bolted connection combined with the stop bolt anti-loosening structure under the complex environment of mechanical vibration , to prevent the nut from loosening

Method used

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  • Bolt connecting nut anti-loosening structure
  • Bolt connecting nut anti-loosening structure

Examples

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Embodiment Construction

[0029] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. For the convenience of description, the words "up", "down", "left" and "right" appear in the following text, which only means that the directions of up, down, left and right are consistent with the drawings themselves, and do not limit the structure.

[0030] like figure 1 , 2 As shown, a bolted nut anti-loosening structure provided in this embodiment includes a connecting bolt 1 , a first washer 4 , a nut 5 , a stop sleeve 6 , a stop screw 7 , a second washer 8 and a self-locking nut 9 .

[0031] like image 3 As shown, the connecting bolt 1 includes a head boss 10 , and one side of the head boss 10 is provided with a head plane 11 consistent with the radial direction of the connecting bo...

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PUM

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Abstract

The invention provides a bolt connecting nut anti-loosening structure. The bolt connecting nut anti-loosening structure comprises a connecting bolt, a nut, a stop sleeve and a stop bolt; the connecting bolt comprises a head boss; a head plane consistent with the radial direction of the connecting bolt is arranged on one side of the head boss; a rod part, a threaded part and a tail part are sequentially arranged from the head plane; the nut is in threaded connection with the threaded part, and a mounting through hole sleeved with the tail part is formed in the stop sleeve; the stop bolt is used for fixing the stop sleeve on the tail part; and one end of the nut is circumferentially provided with a plurality of grooves, one end of the stop sleeve is circumferentially and uniformly provided with at least three plug-in mounting bosses, and the plug-in mounting bosses are axially clamped with the grooves in a matched manner. Compared with the prior art, the bolt connecting nut anti-loosening structure can be suitable for various working conditions under mechanical vibration complex loads, and can effectively avoid the phenomenon that the nut does not retreat.

Description

technical field [0001] The invention relates to the technical field of aircraft mechanical structure design, in particular to a bolt connection nut anti-loosening structure. Applicable to the bolted connection structure of the aircraft. Background technique [0002] At present, the mechanical connection structure in the aviation field under the complex environment of mechanical vibration generally adopts the bolt and nut connection, combined with the way of the stop bolt to prevent the nut from loosening. Due to the mechanical vibration and the complex force of the connected parts, the nuts and bolts repeatedly bear the complex loads (such as tension, torque, alternating loads, impact loads, etc.) transmitted by the connected parts for a long time. The load forms a loosening torque in the circumferential direction of the thread that causes the nut to loosen. This loosening torque will cause the nut to retreat, resulting in a gradual decrease in the pre-tightening torque of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/08F16B31/02
CPCF16B39/08F16B31/02
Inventor 李忠钰黄立新焦付军李志愿朱晓宁宁晓东龙浩张飞龙周建宇龙天畅侯太友
Owner LANDING GEAR ADVANCED MFG
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