Screw nut with self-locking property and making method

A manufacturing method and nut technology, applied to nuts, threaded fasteners, connecting components, etc., can solve problems such as unreliable fastening effect, increased material consumption, and potential safety hazards, and achieve easy implementation, simple structure, and good economy Effects of benefits and social benefits

Inactive Publication Date: 2007-06-13
GUIZHOU AEROSPACE PRECISION PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] off, prone to accidents
Therefore, in order to prevent the nuts from loosening and reduce potential safety hazards, the commonly used methods are to tighten the back of the double nuts, add spring washers or clamp pins on the nuts to solve the problem. These methods not only increase the consumption of materials, but also take a lot of time and labor. Moreover, it will still loosen after a long time, the fastening effect is still unreliable, and there are potential safety hazards

Method used

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  • Screw nut with self-locking property and making method

Examples

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Effect test

Embodiment 1

[0011] Embodiment 1: As shown in Figures 1 and 2, the nut 1 is first produced according to the conventional process, and then one end of the nut 1 is extruded by an extrusion method, so that the screw hole 2 of the nut 1 at this end is deformed, and the nut 1 The screw hole 2 of the screw hole becomes circular at one end and oval at the other end, and the screw hole 2 of the nut 1 gradually changes from a circular shape to an oval shape. When reaching the deformed screw hole section of the nut 1, the contact between the nut 1 and the screw will become tighter, causing the elastic deformation of the oval screw hole 2, so that the nut exerts radial pressure on the screw, which will inevitably increase the distance between the screw and the nut thread. The frictional force forms self-locking, so that the nut 1 has connection performance and self-locking performance at the same time.

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Abstract

The present invention discloses a nut with self-locking function and its production method. Said method is characterized by that said method includes the following steps: firstly, utilizing conventional method to produce general nut; then adopting an extrusion method to extrude one end of said nut and make it be deformed, so that the elastic deformation of said screw hole can produce self-locking pressure, said self-locking pressure can make said nut and screw rod be lightly connected together.

Description

technical field [0001] The invention relates to a nut, in particular to a nut with self-locking performance and a manufacturing method thereof. Background technique [0002] Since the advent of the machinery industry, nuts have been produced. Nuts have a long history and have become a widely used fastening method. [0003] Parts, such as railways, bridges, electric power, mines, aircraft, tanks, automobiles and other tools are widely used. However, during the use of ordinary nuts, especially under alternating vibration and high-frequency vibration, the fastening effect of the nut will be weakened, so that it will loosen by itself. [0004] Take off, prone to accidents. Therefore, in order to prevent the nuts from loosening and reduce potential safety hazards, the commonly used methods are to tighten the back of the double nuts, add spring washers or clamp pins on the nuts to solve the problem. These methods not only increase the consumption of materials, but also take a lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23G9/00F16B37/00
Inventor 汪绍武
Owner GUIZHOU AEROSPACE PRECISION PRODS
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