Integrated fastener and use method thereof

Abstract

The invention relates to an integrated fastener. The integrated fastener comprises a bolt, a nut and an axial lock; the bolt comprises a screw, and further comprises a circumferential movement limiting mechanism for preventing the axial lock and the screw from rotating mutually and an axial movement limiting mechanism for preventing the axial lock and the nut from falling off mutually; and the axial lock is locked into a whole with the nut and the screw simultaneously through the circumferential movement limiting mechanism and the axial movement limiting mechanism. The integrated fastener hasthe characteristics that by changing a previous structure and shape of the axial lock, the purpose of mutual clamping with the nut and the screw is realized, the fastener is machined, mounted and disassembled more easily by factories while the firmness and engagement of the fastener are ensured, and the integrated fastener can be reused, and has the advantages of material saving, smaller volume and wider application range.

Description

technical field [0001] The invention belongs to the technical field of connecting fasteners, and in particular relates to an integrated fastener. Background technique [0002] Bolts and nuts are the most commonly used connecting fasteners in the mechanical field. Most of the commonly used bolts and nuts are ordinary standard fasteners. Under the action of shock, vibration or heavy load, the friction between the thread pairs gradually decreases or instantly disappear, resulting in loose threaded connections, and even fasteners falling off and missing, which will cause mechanical equipment to malfunction. [0003] In Japan's eccentric nut technology, the double nut structure is adopted to increase the friction force by increasing the radial force of the nut and the screw, and the anti-loosening effect is currently recognized as the best in the world. In Germany's anti-loosening gasket technology, the double gasket structure is used to indirectly increase the pre-tightening fo...

AI Technical Summary

Problems solved by technology

In Germany's anti-loosening gasket technology, the double gasket structure is used to indirectly increase the pre-tightening force. This technology requires that the hardness of the gasket is greater than the hardness of the contact surface between the nut and the object, otherwise there will be no sufficient gap between the gasket, the object and the nut. The friction force, the double gasket structure can not produce the effect of increasing the preload

[0004] The applicant researched the existing anti-loosening method and design idea of ​​the nut, and found that the improvement and improvement were mainly carried out along the direction of increasing the friction and adhesion between the nut and the bolt. Destructive dismantling, can no longer be reused, and the fastening effect is not completely satisfactory

The super fastening kit with the patent number 201720983196.X previously applied by the applicant achieves structural anti-loosening between bolts and nuts by adding the connecting piece of shaft lock, and the effect is fundamental and substantial compared with the existing technology Due to the elastic material parts in the shaft lock structure, the applicant’s aforementioned patent technical solution brings great inconvenience to the processing, and is limited to the structural characteristics of the elastic material, the locking ability between the shaft lock and the nut is limited. greater impact, and higher requirements for product installation and use, therefore, promotion and use are largely restricted

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