Friction plate hollow rivet

Abstract

The invention belongs to the technical field of rivets, and provides a friction plate hollow rivet. One end of a hollow cylinder extends outwards to form a base. The outer surface of the hollow cylinder is provided with an annular outer boss from the upper plane of the base, and the external diameter of the annular outer boss is larger than that of the hollow cylinder. The inner surface of the hollow cylinder is provided with an annular inner boss from the bottom plane of the base, and the internal diameter of the annular inner boss is smaller than that of the hollow cylinder. Chamfers are arranged at the inner border between the annular inner boss and the base. The friction plate hollow rivet has the advantages that the height of the annular outer boss is identical to the thickness of a connected part with lower strength, due to the fact that the annular inner boss and the annular outer boss are thickened, the strength of the junction position is improved, when the connected part is riveted to a connecting base, the effect that the connected part is riveted firmly and reliably can be guaranteed, the strength and the service life of the connected part are not affected, and the riveting quality is good. The friction plate hollow rivet is suitable for riveting of vehicle friction plates.

Description

technical field [0001] The invention belongs to the technical field of rivets, in particular to a friction disc hollow rivet. Background technique [0002] Hollow rivets are generally composed of a base extending outward from one end of a hollow cylinder. When this kind of rivet is riveted to the connected part, due to the deformation of the hollow cylinder, it is easy to squeeze and deform the inner hole of the connected part, such as the friction plate. The strength itself is relatively low. When connecting it to the base with rivets, it is easy to squeeze the inner hole of the friction plate, resulting in insufficient riveting, and the strength of the connected parts is reduced, which affects the riveting quality of the product and reduces the product quality. service life. Contents of the invention [0003] The purpose of the present invention is to provide a hollow rivet with good riveting quality and good riveting quality, which is firm in riveting, does not affect ...

AI Technical Summary

Problems solved by technology

[0002] Hollow rivets are generally composed of a base extending outward from one end of a hollow cylinder. When this kind of rivet is riveted to the connected part, due to the deformation of the hollow cylinder, it is easy to squeeze and deform the inner hole of the connected part, such as the friction plate. The strength itself is relatively low. When connecting it to the base with rivets, it is easy to squeeze the inner hole of the friction plate, resulting in insufficient riveting, and the strength of the connected parts is reduced, which affects the riveting quality of the product and reduces the product quality. service life

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