An anti-rolling device and its bogie

Abstract

The invention discloses a side rolling resistance device which comprises a pair of pull and press rods, torsional arms hinged to the lower ends of the pull and press rods, and a torsional rod which is arranged between the two torsional arms and is connected with the torsional arms, wherein the pull and press rods are telescopic pull and press rods. The invention further provides a steering frame. The pull and press rods are designed to be the telescopic form so that the perpendicular height can be convenient to adjust, and no extra torsional stress is generated so that the stress state of the torsional rod is improved, and the reliability of the side rolling resistance device is improved; furthermore, the side rolling resistance device is arranged on the inner side of a side beam of an architecture, so that the stress condition of the torsional rod is greatly improved; meanwhile, the side rolling resistance device further has the advantages of convenience for disassembling, no interference and the like.

Description

technical field [0001] The invention belongs to the technical field of rail transit vehicle equipment, and in particular relates to an anti-rolling device and a bogie thereof. Background technique [0002] In order to ensure the running stability and safety of the rail vehicle passing through the curve, the bogie is equipped with an anti-rolling device. The two tension and compression rods of the existing anti-rolling device are vertically arranged on both sides of the bogie frame, and the torsion rods are arranged above or below the crossbeam across the frame. The anti-rolling device of the prior art has the following defects: [0003] 1. Since the tension and compression rods are installed on the outside of the frame, the length of the torsion rod is longer and the rolling moment is larger. [0004] 2. The height of the whole set of anti-rolling device from the rail surface is high. During assembly, the relative position of the torsion bar and the frame is not easy to ad...

AI Technical Summary

Problems solved by technology

[0004] 2. The height of the whole set of anti-rolling device from the rail surface is high. During assembly, the relative position of the torsion bar and the frame is not easy to adjust, and maintenance and inspection are inconvenient

Moreover, since the torsion arm and the torsion rod are connected by a shrink fit, and the lower end of the torsion arm and the tension and compression rod is fitted with a conical surface, there is a problem of difficulty in disassembly in both ways.

[0005] 3. The bogie frame and car body are welded parts, with long weld seams and large areas, which can easily lead to welding deformation, and interference between the anti-roll device and the frame or car body often occurs

[0006] 4. If figure 1 As shown, the tension and compression bar 1 in the existing anti-roll device is an integral rod with a fixed length, which cannot be adjusted in height. The torsion bar produces additional torsional stress, which reduces the safety and reliability of the torsion bar structure

[0007] In summary, the anti-rolling device in the prior art has defects in reliability and stability, resulting in adverse effects on the safety, reliability and stability of the bogie after it is installed on the bogie

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