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Lockbolt and nut for rectangular, semi-arc and trapezoidal segment skirts of flange

A technology of locking bolts and semi-circular arcs, which is used in the field of semi-circular arcs, bolts, flange rectangles, and trapezoidal segment skirt locking nuts.

Pending Publication Date: 2021-12-17
张毅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Flange lock bolts have not yet come out

Method used

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  • Lockbolt and nut for rectangular, semi-arc and trapezoidal segment skirts of flange
  • Lockbolt and nut for rectangular, semi-arc and trapezoidal segment skirts of flange
  • Lockbolt and nut for rectangular, semi-arc and trapezoidal segment skirts of flange

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Embodiment Construction

[0006] National standard nuts and flange nuts have good connection performance, but their anti-seismic and anti-loosening capabilities are limited. With the reloading and high-speed operation of various mechanical equipment, the problem of nuts and bolts loosening becomes more and more prominent. Increase the diameter of the flange surface of the flange nut, add rectangles, semicircle arcs, and trapezoids to the outermost edges of flange nuts and bolts, so that the bottom surface of the flange and the workpiece are completely suspended. The trapezoid first contacts the workpiece, and the outer edge of the flange is deformed greatly when the flange is rectangular, semi-circular, or trapezoidal. The edge of the flange surface that does not contact the workpiece will also disperse part of the force and store elastic potential energy. . At this time, the stress points of the rectangular, semicircular, and trapezoidal flanges are on the outermost edge of the flange, and the formed ...

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Abstract

The invention discloses a locknut and a bolt for a rectangular, semi-arc and trapezoidal segment skirts of flange, and belongs to the technical field of lock fasteners. Flange faces of the locking lockbolt and the nut should be large enough, an annular platform is arranged on the outermost ring of each flange face, rectangular, semicircular and trapezoidal section skirts are evenly arranged on the annular platforms, the flange faces are suspended through the rectangular, semicircular and trapezoidal section skirts of the flanges, and the rectangular, semicircular and trapezoidal section skirts of the flanges make contact with a workpiece firstly during installation, are stressed firstly and transmit force to the flange faces; due to local stress, local deformation is large, the outer edge of the flange also shares part of force and part of deformation. By means of the design, the elastic coefficient is small, the elastic variation is large, and the elastic potential energy stored by the flange is large, and the anti-vibration and anti-loosening capabilities are high.

Description

technical field [0001] The invention relates to a flange rectangular, semi-circular arc, trapezoidal section skirt anti-loosening nut and bolt. A device that deforms under force to store elastic potential energy to prevent bolts and nuts from loosening belongs to the technical field of anti-loosening fasteners. Background technique [0002] Preventing thread from loosening has been the goal pursued by engineers and technicians. Since the thread appeared, the problem of loosening has not been solved well. Locknuts have appeared in recent decades, and there are many forms. Everyone has different research directions and different research results. Lockbolts hadn't been invented yet. The representative anti-loosening nut should be the variable-tooth type anti-loosening nut introduced by the American Spielock Tool Company in 1975. In 2001, it set up a factory in Shanghai to produce variable tooth locknuts. Its advantages are anti-loose structure, stable and reliable, reusable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/284F16B37/04
CPCF16B39/284F16B37/04
Inventor 不公告发明人
Owner 张毅
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