Brake beam of wagon bogie foundational brake device

Abstract

The invention discloses a brake beam of a wagon bogie foundational brake device. The brake beam comprises an I-shaped beam, two fulcrum components, two safety chains, two safety cables, two brake heads, two sliding block abrasion sleeves, two safety chain lifting seats and four safety cable lifting seats. Each fulcrum component comprises a fulcrum body and a U-shaped clip arranged at the front endof the fulcrum body. The bottom of the I-shaped beam is inserted in the U-shaped clips and fixed through first rivets. The end of each brake head is sleeved with one sliding block abrasion sleeve. The stress state of the brake beam is improved through the two fulcrum components, the strength allowance of the brake beam is increased, so that the strength of the brake beam is improved, and the foundational brake device of a bogie can easily avoid the lower limit of a wagon; and through reasonable arrangement of the positions of the sliding block abrasion sleeves, in a bogie brake release state,a gap between a brake shoe and a wheel is vertically even, and therefore the problem of brake shoe eccentric wear is solved.

Description

technical field [0001] The invention belongs to the technical field of a railway freight car bogie foundation braking device, and in particular relates to a brake beam used for a railway freight car bogie foundation braking device. Background technique [0002] The freight car brake beam is an important part of the foundation braking device of the railway freight car bogie. Its function is to transmit the braking force to the brake shoe through the brake beam when the vehicle is braking. The wheels in the center generate rotational friction resistance torque, which makes the running railway vehicle brake and decelerate until it stops. At present, domestic railway freight car brake beams are mainly divided into bow-shaped rod-type brake beams, channel steel-type brake beams, and combined brake beams. The structural types of the above-mentioned brake beams are all triangular beam frames, and a Strut, suitable for installation of foundation brakes with single center tie rod or...

AI Technical Summary

Problems solved by technology

The foundation braking device with a single middle tie rod or a single pull rod is suitable for railway lines with a lower height from the middle of the lower boundary to the rail surface. It will be difficult to realize the arrangement of the basic brake devices of the lower rods; at the same time, the above-mentioned railway freight car brake beams generally have insufficient strength reserves and brake beams due to the complex operating environment and uncertainty of the force during the operation of the railway vehicles. Problems such as eccentric wear and poor relief of tiles have adverse effects on the operating performance and driving safety of railway vehicles

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