Wheel hub brake drum assembly for heavy-duty truck axle

Abstract

The invention discloses a wheel hub brake drum assembly for a heavy-duty truck axle. The assembly comprises a main shaft, a wheel hub, a brake drum, a fixing ring and a cover plate and is characterized in that the main shaft is provided with a bearing base, a connecting groove is formed in one end of the wheel hub, and a bearing is arranged between a bearing base of the wheel hub and the bearing base of the main shaft; the brake drum is connected with a connecting block on the wheel hub through a connecting bolt, the fixing ring is arranged in one end of the wheel hub and provided with a fixing block, the fixing block is provided with an oil sealing frame, and the cover plate is arranged at the end, close to the fixing ring, of the wheel hub through a mounting bolt. According to the wheelhub brake drum assembly, heat dissipation holes are formed in the brake drum, heat can be quickly dissipated in the working process of the brake drum assembly through the heat dissipation holes, the temperature of the brake drum assembly in the working process is reduced, the damage caused by heat accumulation to the brake drum assembly is avoided, the working efficiency of the brake drum assemblyis improved, and the service life of the brake drum assembly is prolonged.

Description

technical field [0001] The invention relates to the technical field of brake drums, in particular to a wheel hub brake drum assembly for a heavy-duty truck axle. Background technique [0002] In the braking system of heavy-duty trucks, brakes are usually used to brake the vehicle. The brake brakes the vehicle by generating a braking force that hinders the movement or tendency of the vehicle, and usually includes a retarder and a friction brake in the brake. For example, the patent application number 201520891827.6 discloses the axle brake drum, which solves the problem that the flange edge of the brake drum is prone to cracks, but it has low heat dissipation efficiency, the brake drum is easily damaged due to heat accumulation, and the oil seal The problem of poor sealing and short service life. Contents of the invention [0003] The purpose of the present invention is to solve the problems of low heat dissipation efficiency, easy damage of the brake drum due to heat acc...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low heat dissipation efficiency, easy damage of the brake drum due to heat accumulation, poor oil seal and short service life of the existing wheel hub brake drum assembly for the axle of heavy trucks, and provide A wheel hub brake drum assembly for heavy-duty truck axles with reasonable structural design, high heat dissipation efficiency, good heat dissipation effect, difficult accumulation of heat, good oil seal performance and long service life

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