Elastic cone wedge-caulking type anti-disengagement nut

A technology of elastic cones and locknuts, applied in the direction of nuts, screws, bolts, etc.

Inactive Publication Date: 2016-12-14
华和平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of them can only eliminate one kind of axial gap or radial gap between the standard nut and the bolt thread in use, and cannot have both at the same time.
Once the equipment and facilities vibrate frequently and violently, the function of preventing loosening and retreating will be lost immediately

Method used

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  • Elastic cone wedge-caulking type anti-disengagement nut
  • Elastic cone wedge-caulking type anti-disengagement nut
  • Elastic cone wedge-caulking type anti-disengagement nut

Examples

Experimental program
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Effect test

Embodiment Construction

[0010] Such as figure 1 , figure 2 , image 3 As shown, the thick nut (1) with an inner conical hole is first screwed onto the bolt (2) until it is tightened to the required installation torque value. At this time, the axial gap between the screw teeth that it contacts with the bolt (2) has been eliminated, and then the end of the thin nut (3) boss with an outer conical boss is screwed on the bolt (2) until the left end of the conical boss The platform is in contact with the inner tapered hole at the right end of the thick nut (1). At this time, the thin nut (3) can be screwed with a wrench. Under the action of external torque, the uniformly distributed blind grooves on the outer conical boss of the thin nut (3) are compressed in the width direction, which will produce a radial tightening effect, and the conical The thread of the internal thread corresponding to the boss is tightly held on the thread of the bolt (2) until the radial gap therebetween is eliminated. The tig...

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PUM

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Abstract

The invention provides an elastic cone wedge-caulking type anti-disengagement nut mainly formed by combining a thick nut body with a conical hole in the right end and a thin nut body with an outer cone boss at the left end. At least two blind grooves with one ends closed and the other ends closed are evenly distributed in each of the two ends of the thin nut body. During use, because of the wedge-caulking of a cone and the tightening effect of the blind grooves, the axial clearance and the radial clearance between the elastic cone wedge-caulking type anti-disengagement nut and a thread of a bolt can be effectively eliminated, and the anti-disengagement and retreating stopping effects of the elastic cone wedge-caulking type anti-disengagement nut are achieved. According to the elastic cone wedge-caulking type anti-disengagement nut, the plane wedge-caulking principle is ingeniously applied in the three-dimensional cone and is combined with the blind groove elastic shrinkage principle, the structure is simple, the anti-disengagement and retreating stopping effects are stable and reliable, installation and detachment are convenient, and the elastic cone wedge-caulking type anti-disengagement nut can be widely applied to various occasions, having strict anti-disengagement requirements for thread tightening pieces, especially occasions where air planes, automobiles and high-speed trains have special requirements for disengagement prevention of the tightening pieces.

Description

technical field [0001] The invention relates to a new type of elastic conical wedging type anti-loosening nut. In particular, the thread on the bolt is wedged axially and radially at the same time, so as to prevent the tightened nut of the invention from loosening and stopping when vibrating. retreat phenomenon. Background technique [0002] Since the predecessors invented and applied threaded fasteners, the equipment and facilities of all walks of life are inseparable from the wide application of threaded fasteners. It can be said that threaded fasteners have become classic products. In the next few decades, even It will not withdraw from the market and be eliminated in hundreds of years. [0003] But its inherent disadvantage is that it is used in various equipment and facilities, especially in places with severe vibration, which often leads to accidents due to loose nuts. Tracing it to its cause is that threaded fastener bolts and nuts are used together, and when its in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/12
CPCF16B39/12
Inventor 俞苗根
Owner 华和平
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