Pin-type hub braking disc assembly with heat-dissipating function and stiffeners for commercial vehicles

Abstract

A pin-type hub braking disc assembly with a heat-dissipating function and stiffeners for commercial vehicles comprises a hub composed of a hub flange and a hub bearing site; the braking disc includesa braking disc body; the disc inner ring of one side of the brake disc body facing the hub is provided with connection keyways; the hub bearing site is provided with connection splines, the brake discbody is mounted on the hub bearing site through the connection keyways and the connection spline, the side of the connection splines facing the hub flange and the outer wall of the hub bearing site are provided with positioning stiffeners that are raised out of the top of the connection spline, the top of at least one connection keyway is provided with first semicircular through holes that run through the positioning stiffeners, a second semicircular through hole is arranged in each connection keyway, and an expansible fixing component is mounted in an integrated through hole formed by each second circular through hole and the corresponding first semicircular through hole, a spline air vent is arranged between the bottoms of two adjacent connection splines, the hub flange is peripherallyprovided with a flange air hole, and one air vent stiffer is arranged between each two adjacent air holes. The pin-type hub braking disc assembly is applicable to commercial vehicles.

Description

technical field [0001] The invention relates to the field of commercial wheel hubs, in particular to a pin-type wheel hub brake disc assembly with heat dissipation and reinforcing ribs for commercial vehicles. Background technique [0002] At present, medium and heavy trucks and buses are widely used in road transportation and engineering transportation. As an important transmission link between the ground and the body, the hub brake disc assembly determines the driving safety and economy of the whole vehicle. The existing hub brake disc assembly generally includes a hub and a brake disc, wherein the hub is composed of a hub flange and a hub bearing position, the brake disc is composed of a brake disc body and a brake disc sleeve, and the brake disc passes through The brake disc sleeve is set on the hub bearing position of the hub and fixed by fixing bolts. This existing hub brake disc assembly has the following problems in actual use: [0003] 1. Since the brake disc is s...

AI Technical Summary

Problems solved by technology

[0005] 3. Since the brake disc is set on the hub bearing position of the hub through the brake disc sleeve, the entire hub brake disc assembly is a closed structure, resulting in low heat dissipation efficiency, and a large amount of heat accumulated on the brake disc will seriously affect the The braking effect of the brake disc will affect driving safety

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