Vehicle spiral progressive cutting impact energy dissipation method and device

An impact energy, spiral technology, applied in the direction of railway vehicle wheel guard/buffer, transportation and packaging, railway car body parts, etc., can solve the problems of low energy absorption efficiency, small energy absorption, etc. energy efficiency, increase energy absorption stability, and improve the effect of cutting stroke

Active Publication Date: 2022-03-25
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a vehicle spiral progressive cutting impact energy dissipation method and device, to at least solve the problems of relatively small energy absorption and low energy absorption efficiency of energy-absorbing devices in the prior art

Method used

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  • Vehicle spiral progressive cutting impact energy dissipation method and device
  • Vehicle spiral progressive cutting impact energy dissipation method and device
  • Vehicle spiral progressive cutting impact energy dissipation method and device

Examples

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Effect test

Embodiment 1

[0056] A spiral progressive cutting impact energy dissipation method for a vehicle according to an embodiment of the present invention, which combines a crushing energy-absorbing structure with a spiral cutting energy-absorbing structure, and adopts two methods of crushing energy absorption and spiral cutting energy absorption jointly absorb the kinetic energy of the collision. The design method of the present invention combines the crushing energy-absorbing method and the spiral cutting energy-absorbing method, and transforms the single axial translation of the traditional cutting energy-absorbing device into an axial and circumferential helical combined movement, which improves the Energy absorption and energy absorption rate of the device.

[0057] Furthermore, the helical cutting energy-absorbing structure is sleeved inside the crushing-type energy-absorbing structure to provide guiding support for the crushing-type energy-absorbing structure and reduce the overall size of...

Embodiment 2

[0060] see Figure 1 to Figure 18 , a vehicle spiral progressive cutting impact energy dissipation device according to an embodiment of the present invention, the energy dissipation device mainly includes a crushing energy-absorbing sleeve 1, a rear end plate 2, a front end plate 3 and a cutting energy-absorbing mandrel 4 . Among them, the rear end plate 2 is installed on one end of the crushing type energy-absorbing sleeve 1, and the front end plate 3 is installed on the end of the crushing type energy-absorbing sleeve 1 opposite to the rear end plate 2; A through hole 21, a cutting tool 22 is installed on the inner wall of the through hole 21; the cutting energy-absorbing mandrel 4 is arranged in the inner cavity of the crushing energy-absorbing sleeve 1, and one end of the cutting energy-absorbing mandrel 4 is rotatable The other end of the cutting energy-absorbing mandrel 4 is rotatably installed on the inner side of the front end plate 3, and the outer wall of the cuttin...

Embodiment 3

[0078] see Figure 19 to Figure 20 , Another embodiment of the vehicle spiral progressive cutting impact energy dissipating device of the present invention, the main structure of the energy dissipating device is the same as that of Embodiment 2, and will not be repeated here. Compared with Embodiment 2, the main difference of the energy dissipating device of this embodiment is that on the inner wall of the through hole 21 and the inner wall of the annular rib 23, multi-layer cutting tools 22 are arranged in the axial direction, each Each layer comprises a plurality of cutting knives 22 uniformly distributed along the circumferential direction, and the cutting knives 22 of different layers are in a helical arrangement consistent with the helical guide groove 41 (such as Figure 20 , the same dotted line represents the cutting tools 22 of the same layer). A cutting tool 22 in each layer is accommodated in the same spiral guide groove 41; The width of 221 increases step by step...

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Abstract

The invention discloses a vehicle spiral progressive cutting impact energy dissipation method and device. The energy dissipation device comprises: a crushing type energy-absorbing sleeve; a rear end plate installed on one end of the crushing type energy-absorbing sleeve; There is a through hole on the plate, and the cutting tool is installed on the inner wall of the through hole; the front end plate is installed on the opposite end of the crushing energy-absorbing sleeve and the rear end plate; the cutting energy-absorbing mandrel is arranged on the crushing energy-absorbing sleeve In the inner cavity of the barrel, one end of the cutting energy-absorbing mandrel is rotatably installed in the through hole, and the other end of the cutting energy-absorbing mandrel is rotatably installed on the inner side of the front end plate. Compatible helical guide groove. The energy dissipation device combines crushing energy absorption and cutting energy absorption, and forms a spiral cutting method; under the same external dimensions of the energy absorbing structure and the same collision translation space, the cutting stroke of the cutting tool is improved, Increased the energy absorption and energy absorption rate of energy dissipation devices.

Description

technical field [0001] The invention relates to the technical field of traffic safety protection, in particular to a vehicle spiral progressive cutting impact energy dissipation method and device. Background technique [0002] Over the years, rail transportation has become a widely used mode of transportation due to its many advantages such as economy, large transportation volume, fast speed, environmental protection and energy saving, and little impact on the climate. Although rail transit has higher safety performance than other means of transportation such as buses and cars, in actual operation, it is affected by various factors such as traffic speed, traffic density, human error, equipment failure, technical loopholes, and operating environment. Affected by various factors, vehicle collision accidents occur from time to time. In order to ensure the safety performance of locomotive collisions and reduce the degree of damage to the car body and occupants during collisions...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61F19/04
CPCB61F19/04
Inventor 王中钢高天宇熊伟雷紫平郭子超邓俊杰曾可欣
Owner CENT SOUTH UNIV
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