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Nut fastening assembly for self-fastening bolt

A technology for fastening components, bolts and nuts, applied in the direction of threaded fasteners, locking fasteners, nuts, etc.

Inactive Publication Date: 2018-01-12
福州市晋安区技智企业管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although setting a self-tightening washer under the self-tightening nut reduces the risk of displacement and loosening of the fastening component to a certain extent, this method is only an additional layer of protection, that is, the effect achieved by self-tightening of two nuts is similar, and it still has greater potential for loosening and movement

Method used

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  • Nut fastening assembly for self-fastening bolt
  • Nut fastening assembly for self-fastening bolt
  • Nut fastening assembly for self-fastening bolt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 Shown in three dimensions for fastening components Figure 1 , including fastening nut body 1, self-tightening bolt 2 and washer 3, such as image 3 As shown, the self-tightening bolt 2 includes a bolt handle 21 and a bolt shank 22. The contact surface between the screw handle 21 and the washer 3 is a spiral curved surface, and the spiral curved surface is defined by a point on the central axis of the screw handle 21. The connection line at a point on the same height as the outer surface of the screw handle 21 is formed by rotating at a constant speed around the central axis of the screw handle 21 and moving along the central axis of the screw handle 21 at a constant speed, wherein the rotation angle is 370°, and the washer 3 and The fastening nut body 1 fastens the fastener 5 in the middle.

[0024] Set the rotation angle of the helical curved surface to 370°, so that the line connecting a point on the central axis of the helix and a point on the out...

Embodiment 2

[0032] Such as figure 2 Shown in three dimensions for fastening components Figure II , including fastening nut body 1, self-tightening bolt 2 and washer 3, such as image 3 As shown, the self-tightening bolt 2 includes a bolt handle 21 and a bolt shank 22. The contact surface between the screw handle 21 and the washer 3 is a spiral curved surface, and the spiral curved surface is defined by a point on the central axis of the screw handle 21. The connection line at a point on the same height as the outer surface of the screw handle 21 is formed by rotating at a constant speed around the central axis of the screw handle 21 and moving along the central axis of the screw handle 21 at a constant speed, wherein the rotation angle is 370°, and the washer 3 and The fastening nut body 1 fastens the fastener 5 in the middle.

[0033] Set the rotation angle of the helical curved surface to 370°, so that the line connecting a point on the central axis of the helix and a point on the o...

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Abstract

The invention discloses a nut fastening assembly for a self-fastening bolt and belongs to the mechanical field. The nut fastening assembly comprises a fastening nut body, a self-fastening bolt and a gasket; the self-fastening bolt comprises a bolt handle and a bolt rod; a spiral curved surface is formed by rotating a connecting line of a point on the central axis of the spiral handle and a point on the outer side surface of the spiral handle in the same height at a constant speed around the central axis and moving along the central axis of the spiral handle at the constant speed, wherein the rotating angle is greater than 360 degrees but less than 540 degrees. The nut fastening assembly disclosed by the invention has the beneficial effects that the rotating angle of the spiral curved surface is set to be greater than 360 degrees, so that the connecting line of the point on the central axis of the spiral handle and the point on the outer side surface of the spiral handle in the same height takes a turn or more so as to form an embedded block on the contact surface of the spiral handle and the gasket to be embedded into the gasket, and therefore, even if part of threads on the bolt are damaged due to vibration, the gasket cannot move relative to the bolt in the axial direction of the bolt on the premise that the gasket is not damaged, thereby playing a true self-fastening role.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a self-tightening bolt and nut fastening assembly. Background technique [0002] In the modern industrial field, products such as nuts and bolts are widely used to lock structural parts, but at the same time we will also find that in many cases, especially when they are applied to vibration, we often need to lock the already locked The structural parts are regularly repaired and reinforced to prevent structural dislocation caused by loose nuts and bolts. [0003] In view of the above situation, in actual operation, people use various methods to fasten the locked nuts and bolts, such as using super glue, electric welding, secondary reinforcement through perforation, etc., but there is still no way to fundamentally solve the problem of nuts and bolts. The phenomenon of loosening and shifting. [0004] For example, the publication number is CN106286558A invention patent discloses a self-tig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/282F16B39/24
Inventor 郑行良
Owner 福州市晋安区技智企业管理咨询有限公司
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