Assembly method of pin-type hub brake disc assembly for commercial vehicles

Abstract

Provided is an assembling method for a pin shaft type hub braking disk assembly for a commercial vehicle. The assembly comprises a hub composed of a hub flange and a hub bearing position; a braking disk comprises a braking disk body; connection key grooves are formed in the disk inner circle on the side, facing the hub, of the braking disk body; connection splines are arranged on the hub bearing position, and the connection spines and the hub bearing position are provided with positioning reinforcing ribs which protrude out of the top faces of the connection splines; the top face of at least one connection spline is provided with a first semicircular hole; and second semicircular holes are formed in the corresponding connection key grooves. The assembling method includes the steps that theconnection key grooves are aligned with the connection splines, the first semicircular holes are aligned with the second semicircular holes, and the braking disk body is installed on the hub throughthe connection splines and the connection key grooves; the braking disk body is pressed on the positioning reinforcing ribs; and expandable fixing assemblies are inserted in whole circular holes formed by the second semicircular holes and the first semicircular holes, the expandable fixing assemblies are expanded so as to make the braking disk body fixedly installed on the hub in the axial direction. The assembling method is applicable to the commercial vehicle.

Description

technical field [0001] The invention relates to the field of commercial vehicle hubs, in particular to an assembly method for a pin-type hub brake disc assembly 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] Since the brake disc is set on the hub bearing posit...

AI Technical Summary

Problems solved by technology

[0003] Since the brake disc is set on the hub bearing position of the wheel hub through the brake disc sleeve and fixed by the fixing bolts, the fixing bolts will be subjected to a large shear force. In this way, in order to ensure driving safety, the size of the fixing bolts must be designed The size of the fixing bolt is very large, and the installation of the fixing bolt is very laborious and time-consuming

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