A radially welded bogie with low dynamic action

Abstract

The invention particularly discloses a radial welding bogie with a low dynamic effect. The radial welding bogie comprises a welding framework, a braking device, a wheel set and a wheel set connecting device, wherein the wheel set is connected with the wheel set connecting device; the weld framework is arranged above the wheel set connecting device; and the braking device is connected with the welding framework together. The welding framework comprises two side beams, a cross beam, a braking boom and two vibration damping devices, wherein the cross beam is arranged between the two side beams; a vibration damping tray is arranged below the cross beam; and the braking boom is arranged at the two sides of the cross beam. Due to the adoption of the framework of a welding structure, the overall weight of the bogie is lightened; due to the fact that the effective connection is realized through the braking boom between the two side beams of the bogie, the overall anti-warp stiffness of the bogie is greatly improved, and the critical speed of the bogie is improved; and the low dynamic effect of the bogie is realized by elastic bearing saddles adopted by the bogie, so that the acting force between wheel-rails is reduced.

Description

technical field [0001] The invention relates to a low dynamic action radially welded bogie for railway freight car applications. Background technique [0002] The main freight car bogie currently in operation in my country is the Zhuan K6 bogie, which adopts a cast three-piece structure, a wedge-type friction damper, and a lower cross support device. The K6 bogie has good running performance in a straight line. Performance, but the wear on the wheels and tracks is severe when going through curves. [0003] The Zhuan K7 radial bogie, which was launched in China later, adopts a cast three-piece structure, a wheel set connecting device, and a wedge-type friction damper, which alleviates the wear problem of the wheels and rails when passing a curve, but due to the steering The frame bolsters and side frames are of cast construction, so the bogie is heavy. [0004] The above-mentioned bogies belong to the cast three-piece structure. Due to the self-heavy weight of the bogie and ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the complex technical structure of the above-mentioned radial bogie, the bogie of the present invention adopts the wheel set self-guiding radial principle. The connecting device connects the wheel sets, and through the coupling effect of the front and rear wheel sets when passing the curve, the wheels are in a radial position when passing the curve

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