Anti-climbing device for rail vehicles

Abstract

The invention discloses a novel anti-climbing device for rail vehicles. The anti-climbing device is composed of anti-climbing cylinders, bases, shear bolts, compression springs, wedges and fixing screws. The front end of the anti-climbing cylinder is rounded or right-angled, and a positioning slot is opened at a certain position; the base is fixed on the energy-absorbing structure or the vehicle body by bolts, and there is a chamfer at the entrance of the anti-climbing cylinder for easy engagement; the base and The anti-climbing columns are connected by shear bolts with a certain strength. Four limit wedges and compression springs are installed on the base, and the oblique angles of the positioning wedges face inward. The oblique angles of the two limiting slots on the anti-climbing cylinder are inward. The invention solves the problem of male-female pairing of the existing anti-climbers when meshing and the problem that the anti-climbers can only be pressed but not pulled, and can automatically center the vehicle during the collision process and tightly mesh together, which is convenient The energy-absorbing structure or car body behind produces stable and orderly plastic deformation.

Description

technical field [0001] The invention relates to an anti-climber for rail vehicles, belonging to the technical field of rail vehicle collision protection equipment. Background technique [0002] In order to prevent the train from climbing during the collision, an anti-climbing device is installed at the front end of the vehicle. [0003] At present, most vehicles use tooth-shaped anti-climbers, which can limit the relative displacement between collision objects, but they need to be paired to have a centering function. [0004] There are also cup-cone-shaped anti-climbers with automatic centering, which need to be used in conjunction with a male and a female. [0005] The anti-climbers mentioned above must be installed on vehicles with specific operating rules on rail vehicles to ensure their matching. However, since the vehicle can turn around and run in reverse, it is difficult to match the anti-climbing gear of the vehicle. Therefore, most rail vehicles adopt anti-climbe...

AI Technical Summary

Problems solved by technology

Although this anti-climbing device can limit the vertical movement between the two, it cannot automatically center

Cause non-central collision of subsequent energy-absorbing structures or vehicle structures, resulting in unpredictable subsequent deformations

At the same time, since there is tension and compression during the collision of the vehicle, and the anti-climbing gear type anti-climbing device cannot bear the tensile load, during the secondary meshing process, due to the deformation of the vehicle, the meshing may fail, affecting the crashworthiness of the vehicle performance

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