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A reusable energy absorbing structure for collision preventing of rail vehicles

An energy-absorbing structure and rail vehicle technology, which is applied in the direction of railway vehicle wheel guards/buffers, railway car body parts, transportation and packaging, etc., can solve the problem that the absorbable energy level of the impact speed limit cannot meet the requirements of rail vehicles, etc. Achieve perfect mechanical characteristic curve, stable cushioning force and good energy absorption effect

Active Publication Date: 2019-01-15
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shock velocity limits that these types of device structures can withstand and the energy levels they can absorb simply do not meet the relevant requirements in the field of rail vehicles

Method used

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  • A reusable energy absorbing structure for collision preventing of rail vehicles
  • A reusable energy absorbing structure for collision preventing of rail vehicles
  • A reusable energy absorbing structure for collision preventing of rail vehicles

Examples

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Embodiment 1

[0032] Such as Figure 1-7 As shown, the present invention provides a reusable rail vehicle anti-collision energy-absorbing structure, the energy-absorbing structure includes an impacted rod, an outer tube, a damping structure, a restoring structure and an end base; the damping structure includes a damping Plug, guide tube, damping elastic element and small base at the end, the recovery structure includes a recovery piston and a recovery elastic element; the outer tube is a tubular structure and the interior is divided into a front cavity and a rear cavity by a partition, the A through-hole-shaped damping hole is provided on the partition so that the damping fluid can circulate between the front cavity and the rear cavity; the impacted rod includes an impacted end at the front end and a piston end at the rear end, and the impacted rod The piston end is arranged inside the outer tube, and the impacted end is arranged outside the outer tube; when the damping plug is in the initi...

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PUM

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Abstract

The invention provides a reusable energy absorbing structure for collision preventing of rail vehicles. The structure comprises an impact rod, an outer pipe, a damping structure, a restoring structureand an end base. The damping structure comprises a damping plug, a guide tube, a damping elastic element and an end small base. The restoring structure comprises a restoring piston and a restoring elastic element. The outer tube is of a tubular structure, and the inside of the outer tube is divided into a front cavity and a rear cavity by a partition plate. The partition plate is provided with adamping hole so that the damping fluid can flow between the front and the rear cavities. At least a part of that length of the damping plug is arranged in the damping hole when the damping plug is inthe initial position, and the damping plug can move forward and backward when the damping plug is impinged, a gap is between the thickest part of the radial direction of the damping plug and the damping hole for the damping fluid to flow between the front and rear cavities, and a conductive hole is arranged on the guide tube for the damping fluid to flow in the front and rear cavities. The energy-absorbing structure has good energy-absorbing effect, can reduce the damage to occupants in the secondary collision, and can be reused so as to significantly reduce the cost of the energy-absorbing structure.

Description

technical field [0001] The invention belongs to the field of safety devices for rail vehicles, in particular to a reusable anti-collision energy-absorbing structure for rail vehicles. Background technique [0002] With the development of rail transit, people pay more and more attention to the safety performance of rail vehicles. The current energy-absorbing structure of rail vehicles is mainly based on metal crushing energy absorption, and the structure cannot be used again after crushing. Its mechanical characteristic curve is generally a jagged wavy line with a large peak value, which has a high trigger threshold requirement, resulting in a large deceleration peak value, which is not conducive to the safety of the occupants. [0003] Invention patents CN201610860262.4 and CN201610115228.4 previously researched by the inventor of the present invention both provide a kind of collision energy-absorbing device for rail vehicles. These collision energy-absorbing devices have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F19/04
CPCB61F19/04
Inventor 高广军王帅姜琛关维元彭勇
Owner CENT SOUTH UNIV
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