A buffer energy absorbing system

Abstract

The invention discloses a buffer energy-absorbing system and belongs to the field of railway vehicles and other machines. The buffer energy-absorbing system comprises a supporting device, a precompression component and a double-scroll device. The double-scroll device comprises a double-scroll component and rotating wheels. Rotary shafts of the rotating wheels are fixed to the supporting device. The double-scroll component can be made of a scroll belt which can be unfolded into a long belt. The two ends of the scroll belt are connected to the rotating wheels correspondingly and spirally surround the rotating wheels to form scroll parts. A sunken part is formed between the scroll parts of the two sides of the double-scroll component. The precompression component is arranged in the sunken part. The buffer energy-absorbing system can conduct super-large-stroke buffer energy absorption in a small space and is smooth and steady in buffer energy absorption, small in initial peak force, capable of avoiding large impact and easy to apply and popularize.

Description

technical field [0001] The invention mainly relates to the field of rail vehicles, and also to other mechanical fields, in particular to a large-stroke buffer energy-absorbing system. Background technique [0002] In order to absorb excess impact kinetic energy, different forms of buffer energy-absorbing devices are widely used in mechanical fields such as rail vehicles. [0003] Chinese patent CN202264797U discloses an overload protection expansion type buffer energy-absorbing device integrated with the coupler buffer device of the vehicle. When a collision accident occurs, the impact force generated will force the expansion sleeve into the deformation tube to expand radially to absorb the impact. Kinetic energy, thereby protecting the safety of occupants and vehicle structure. Although the device has the advantages of simple structure and easy assembly, it also has the disadvantages of excessively large axial dimension, low utilization rate of the buffer stroke, and insuf...

AI Technical Summary

Problems solved by technology

Although the device has the advantages of simple structure and easy assembly, it also has the disadvantages of excessive axial size, low utilization rate of buffer stroke and insufficient energy absorption.

[0004] Chinese patent CN102107664A discloses a cutting-type energy-absorbing device. When a collision accident occurs, the device mainly absorbs impact kinetic energy by cutting metal pipes with metal knives. Compared with ordinary crushing energy-absorbing structures, this structure has reliable work, The advantage of high energy, but this scheme also has the following problems in application: 1. The high-speed and high-temperature metal flying chips generated by cutting pose a potential safety threat to the vehicle occupants and people near the vehicle; Heat causes a sharp decline in tool performance, weakening its ability to cushion and absorb energy

However, the initial peak force of this type of energy-absorbing device is relatively high, and the buffering stability is poor, and the overall buffering and energy-absorbing performance needs to be improved.

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