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Elastic washer structure

A technology of elastic washer and hole structure, applied in the direction of connecting components, threaded fasteners, screws, etc., can solve the problems of elastic washer fatigue fracture, loss of fastening effect, axial force attenuation, etc., to reduce bearing stress and avoid stress concentration , the effect of not easy to fail and break

Pending Publication Date: 2020-07-28
东风科技(武汉)有限公司
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Problems solved by technology

[0003] At present, the inner hole of the conical elastic washer on the bolt and elastic washer assembly that is more commonly used in the fastener industry is generally a straight hole, which is widely assembled in the body system and chassis system of the car. Under alternating loads, elastic washers are prone to fatigue fractures, which will lead to loosening of bolts, attenuation of axial force, and loss of fastening effect

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] refer to figure 1 , an elastic washer structure, including an elastic washer 1, an inner hole structure 2 and an outer hole structure 3, the inner hole structure 2 is in the shape of an arc with an inverted radius, and the inner hole structure 2 and the outer hole structure 3 form a horn Mouth-shaped, the diameter of the inner pore structure 2 is smaller than the diameter of the outer pore structure 3 .

[0019] Preferably, the diameter of the inner ho...

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Abstract

The invention discloses an elastic washer structure. The elastic washer structure comprises an elastic washer body, an inner hole structure and an outer hole structure, wherein the inner hole structure is in the shape of an inverted radius-changing arc angle, the inner hole structure and the outer hole structure form a horn mouth shape, and the diameter of an inner hole is smaller than that of anouter hole, according to the elastic washer structure, when the elastic washer structure is combined with a bolt head, the inner hole structure and the R position below the bolt head are in a separated state and do not interfere with each other, the stress borne by the improved inner hole structure is greatly reduced under the same condition, and the risk of fatigue fracture of the elastic washeris reduced. According to the elastic washer structure, the structural design is novel and ingenious, failure and breakage of the elastic washer caused by stress concentration are avoided, the stress borne by the elastic washer is greatly reduced, and the elastic washer is not prone to failure and breakage.

Description

【Technical field】 [0001] The invention relates to the technical field of bolt assemblies, in particular to an elastic washer structure suitable for bolts. 【Background technique】 [0002] Elastic washers are used in conjunction with bolts, and their main function is to prevent loosening. After the bolt is tightened, the elastic washer gives an axial force to increase the friction between the bolt and the material, so that the bolt tightens the material in vibration and prevents the loosening between the bolt and the material. [0003] At present, the inner hole of the conical elastic washer on the bolt and elastic washer assembly that is more commonly used in the fastener industry is generally a straight hole, which is widely assembled in the body system and chassis system of the car. Under alternating load, the elastic washer is prone to fatigue fracture, which will lead to loosening of bolts, attenuation of axial force, and loss of fastening effect. 【Content of invention...

Claims

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Application Information

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IPC IPC(8): F16B39/26
CPCF16B39/26
Inventor 徐意唐海斌冯军董瑞祥
Owner 东风科技(武汉)有限公司
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