Manual braking pull rod device for driving pulleys of rail wagon

Abstract

The invention belongs to the technical field of braking of a rail wagon and particularly provides a manual braking pull rod device for driving pulleys of the rail wagon. The problem that a reinforcing rib part of a conventional manual braking machine pull rod for a driving pulley device is easy to crack and break off is solved. The manual braking pull rod device for the driving pulleys of the rail wagon comprises a manual braking pull rod, a movable pulley, a bracket rail, a fixing bracket of the movable pulley and a bracket of the manual braking pull rod. The bracket rail comprises a rail support mounted on a vehicle body middle beam, a rail board is mounted on the rail support, and the fixing bracket of the movable pulley and the bracket of the manual braking pull rod are mounted on the rail board. The manual braking pull rod device disclosed by the invention has the advantages that: the possibility that a reinforcing rib pulls out a carrier and the problem that the manual pull rod is fractured are completely removed, and the requirements on driving security of the rail wagon are met.

Description

technical field [0001] The invention belongs to the technical field of railway freight car braking, and in particular relates to a hand brake pull rod device for driving a pulley of a railway freight car. Background technique [0002] The hand brake is used to produce a braking effect when the railway vehicle is shunting to prevent the parked vehicle from slipping away. The braking ratio is directly related to whether the vehicle can be parked safely as required. Railway wagons usually use a hand brake pull rod that drives a pulley device to amplify the manual force magnification and transmit the hand brake force to the foundation brake device. The reinforcement rib of the original hand brake tie rod is assembled and welded by three round steels with a diameter of 16 mm. Due to sudden changes in geometric dimensions, the stress is very concentrated here. According to statistics, cracks and breaks in the hand brake tie rod reinforcing ribs (that is, the welds of 3 round stee...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the situation that cracks and breakage occur in the reinforcing rib of the pull rod of the hand brake (that is, the welding place of 3 round steel groups) in the existing driving pulley device, and prevent the reinforcing rib of the pull rod of the hand brake from breaking and falling off and hitting the sleeper. Or turnouts, problems that affect driving safety, and if the railway freight car uses a relatively short draw beam, or the bogie uses an integrated brake device and the hand brake ratio is very low, it is necessary to add a pulley to enlarge the hand brake lever. Problems that cannot be arranged in a small space

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