Lock washer for screwed fitting and preparation method thereof

Abstract

The invention relates to a lock washer for a screwed fitting and a preparation method thereof. The lock washer comprises an upper washer body and a lower washer body, a plurality of first ratchets which are distributed in a fan shape are arranged at the bottom of the upper washer body, a plurality of second ratchets which are matched with the first ratchets are arranged at the top of the lower washer body, the first ratchets are provided with wide surfaces attached to the second ratchets and narrow surfaces with the area smaller than that of the wide surfaces, the wide surfaces are helicoidalsurfaces formed by spiral movement of a generatrix for spacing an axis by taking the central axis of the washer body as the axis, the helix angle of a wire at the pitch diameter position of each helicoidal surface is larger than the helix angle of the screwed fitting, and the pitch diameter position of each helicoidal surface is the position, which is equal in distance away from the inner circumference as well as the outer circumference of the corresponding first ratchet, on the corresponding helicoidal surface. The lock washer has the advantage of being good in locking effect.

Description

technical field [0001] The present disclosure relates to a lock washer for a threaded connection and a preparation method thereof. Background technique [0002] Most of the wedging surfaces between the existing combined anti-loosening washers are ordinary inclined surfaces, and the wedging design of the ordinary inclined surfaces cannot exert the anti-loosening effect well. After calculation, the effective area of ​​the anti-loosening washers designed with this ordinary inclined surface It only accounts for about 50% of the total slope area, and the failure phenomenon of "not loosening" of the lock washer often occurs. Contents of the invention [0003] The purpose of the present disclosure is to provide an anti-loosening washer for a threaded connection and a preparation method thereof. The anti-loosening washer provided by the present disclosure has a better anti-loosening effect. [0004] In order to achieve the above object, the present disclosure provides an anti-loo...

AI Technical Summary

Problems solved by technology

[0002] Most of the wedging surfaces between the existing combined anti-loosening washers are ordinary inclined surfaces, and the wedging design of the ordinary inclined surfaces cannot exert the anti-loosening effect well. After calculation, the effective area of ​​the anti-loosening washers designed with this ordinary inclined surface It only accounts for about 50% of the total inclined surface area, and the failure phenomenon of "not loosening" of the anti-loosening gasket often occurs

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