Elastic vibration reduction towing mechanism of track vehicle

Abstract

An elastic vibration-damping traction device for rail locomotives, the left and right crank arms are connected by an elastic connector, and the elastic connector is composed of: the left end of the left connecting rod is hinged with the left crank arm, and the right part of the left connecting rod is covered with For the spring guide cylinder with spring cavity, the right end of the spring guide cylinder is connected with the right connecting rod, and the right end of the right connecting rod is hinged with the right crank arm; There are left and right limiting bosses, and the inner side of the spring guide cylinder has a boss moving cavity that cooperates with the left and right limiting bosses; the inner side of the left and right limiting bosses of the left connecting rod is also equipped with left and right sliding Stopper; the position of the spring cavity in the left and right sliding stoppers is provided with a pre-tightened buffer spring. The traction device can effectively absorb and reduce the longitudinal impact force of the locomotive, improve the running safety of the locomotive and the stability of longitudinal traction, and improve the service life of itself and its joints. It can conveniently use the existing rigid six-bar traction mechanism for transformation, saving costs.

Description

technical field [0001] The invention relates to a traction device for a railway locomotive, in particular to a six-bar traction device for a railway locomotive. Background technique [0002] The six-bar traction device is widely used in my country's Dongfeng and Shaoshan series passenger and freight locomotives, such as the main locomotives DF4, DF8, DF11, SS3, and SS9 currently used in railway transportation. It is a six-bar mechanism, the rear ends of the left and right drawbars are connected with the car body, the front ends of the left and right drawbars are respectively hinged to the left and right crank arms, and the other ends of the left and right drawbars are respectively connected to the cross bar. Both ends are hinged; at the same time, the corners of the left and right crank arms are connected to the bogie through the crank pins. The drawbar of the six-bar mechanism is located on both sides of the bogie, which is beneficial to the arrangement of other structures...

AI Technical Summary

Problems solved by technology

When the locomotive starts, brakes, and runs longitudinally and vibrates, the connection between the six-bar traction device, the bogie and the car body, and the rods of the traction device all bear a large longitudinal impact load, which reduces the traction device. The safety and service life of related components affect the stability of the longitudinal traction of the locomotive, and to a certain extent affect the wheel-rail adhesion state of the driving wheels

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