Torsional framework type steering frame

Abstract

The invention discloses a torsional framework type steering frame, which comprises a wheel pair assembly, side frame assemblies, a suspension damping device, a swing bolster assembly, a braking device and axle box assemblies. The side frame assemblies are arranged at the two ends of the swing bolster assembly; the axle box assemblies are mounted at the two ends of the wheel pair assembly; the suspension damping device is mounted between the side frame assemblies and the axle box assemblies; the braking device is connected with the side frame assemblies; the swing bolster assembly comprises a swing bolster, end parts of the swing bolster are of cylindrical structures, a swing bolster bushing is arranged on the swing bolster, and the swing bolster is connected with the swing bolster bushing in an interference fit manner; the side frame assemblies comprise side frames, middle parts of the side frames are provided with holes, side frame bushings are arranged in the holes of the side frames, and the side frames are connected with the side frame bushings in an interference fit manner; and an external circular face of the swing bolster bushing is connected with inner holes of the side frame bushings in a matching manner. The torsional framework type steering frame has the advantages of simple structure, little operational impact, high diamonding resistance rigidity, good adaptability to unsmooth lines, high operational reliability and stability, capability of effectively alleviating impact during the operation of a truck, improvement on operational quality and prolongation in the service lives of components.

Description

technical field [0001] The invention relates to a railway freight car bogie, in particular to a torsion frame type bogie, which belongs to the technical field of railway freight car bogies. Background technique [0002] The bogie is the running part of the railway freight car, which connects the rail and the car body, plays the role of guiding, damping and braking, and is very important to the safe and good operation of the railway freight car. Due to the fact that there are various irregularities in the real track and the axle load of the bogie, with the increasing demand for freight, the combination of the two not only causes an increase in the static load, but also aggravates the impact of the dynamic load on the bogie , which increases the vibration suffered by the vehicle during operation, causing increased wear and shortened life of vehicle parts. The bogie bolster and the side frame of the traditional three-piece structure are connected by a conventional suspension d...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the lack of adaptability to track irregularities existing in the prior art, especially when the side frame components, wheel set components and brake devices are all unsprung masses, the Large load impact, loose structure, insufficient ability to resist rhomboid deformation, low critical speed of snaking motion, which cannot well meet the needs of the application; provide a torsion frame bogie with simple structure, flexible function, and small running impact , High rigidity against rhomboid deformation, good adaptability to uneven lines, high operational reliability and stability, can effectively reduce the impact force of trucks during operation, improve operating quality, and prolong the service life of components

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