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Impact energy absorbing device of diaphragm bolt type tandem porous solid elements

A porous solid, energy-absorbing device technology, applied in the direction of shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problems of limited energy absorption and easy instability of short and small honeycomb components, achieve simple and reasonable structure, avoid Unstable, easy-to-manufacture effects

Active Publication Date: 2014-04-02
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: For rail trains and urban rail vehicles, it is difficult to rely on a single honeycomb element to effectively absorb huge impact kinetic energy
In other words: single-piece long honeycomb elements or simple series honeycomb elements are prone to instability, while single-piece short honeycomb elements have limited energy absorption, so there is a gap between the energy absorption of a single honeycomb element and the actual demand

Method used

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  • Impact energy absorbing device of diaphragm bolt type tandem porous solid elements
  • Impact energy absorbing device of diaphragm bolt type tandem porous solid elements
  • Impact energy absorbing device of diaphragm bolt type tandem porous solid elements

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this embodiment, there are three porous solid elements 2, two movable partitions 5, four guide rods 8, one sleeve end plate 1 and one bolt end plate 9, according to the attached figure 1 , 2 and 5 packs. Grooves matching the porous solid element 2 are provided on the contact surfaces of the sleeve end plate 1 , the movable partition plate 5 , the plug end plate 9 and the porous solid element 2 . The opening of the bolt sleeve 6 is provided with a sleeve bell mouth 7 for easy insertion of the bolt 3 . The pin end plate 9 is installed on the end facing the impact source, and is rigidly connected to one end of the guide rod 8; the sleeve end plate 1 is installed on the end away from the impact source, and is slidably connected to one end of the guide rod 8; 10 is mounted on one end of the guide rod 8 outside the sleeve end plate 1 . When the porous solid elements in series are compressed by external force, the porous solid element 2 and its movable partition 5 slide ...

Embodiment 2

[0030] In this embodiment, there are three porous solid elements 2, two movable partitions 5, four guide rods 8, one sleeve end plate 1 and one bolt end plate 9, and one strike rod 11. According to attached image 3 , 4 and 5 packs. Grooves matching the porous solid element 2 are provided on the contact surfaces of the sleeve end plate 1 , the movable partition plate 5 , the plug end plate 9 and the porous solid element 2 . The opening of the bolt sleeve 6 is provided with a sleeve bell mouth 7 for easy insertion of the bolt 3 . The pin end plate 9 is installed at the end far away from the impact source, and is rigidly connected with one end of the guide rod 8; the sleeve end plate 1 is installed at the end facing the impact source, and is slidably connected with one end of the guide rod 8; 10 is installed on the end of the guide rod 8 outside the sleeve end plate 1, and the impact rod 11 is installed on the sleeve end plate 1. When the porous solid elements in series are ...

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Abstract

The invention discloses an impact energy absorbing device of diaphragm bolt type tandem porous solid elements. The impact energy absorbing device comprises porous solid elements, wherein tandem porous solid element assemblies are formed by a group of porous solid elements and movable diaphragms arranged between the porous solid elements; the tandem porous solid element assemblies are mounted among a sleeve end plate, a guide rod and a bolt end plate; one end of the guide rod is provided with a pre-tightening component; the guide rod is sleeved with the sleeve end plate, the movable diaphragm and the bolt end plate; one side of the movable diaphragm is provided with a bolt base and a bolt while the other side of the movable diaphragm is provided with a bolt base extension body and a bolt sleeve; the bolts and the bolt sleeves on the adjacent movable diaphragms are matched with each other in position and size; the sleeve end plate is provided with the bolt base extension body and is internally provided with the bolt sleeve; the bolt end plate is provided with the bolt base and the bolt. When the tandem porous solid element assemblies are compressed under the external force and the porous solid elements and the movable diaphragms thereof move a certain distance on the guide rod, the bolts are inserted in the inner cavity of the bolt sleeve, and the porous solid elements and the movable diaphragms thereof continuously move to the set distance.

Description

technical field [0001] The invention relates to an impact energy-absorbing device of diaphragm plug-type series porous solid elements. Background technique [0002] Single-piece porous solid elements are widely used in energy-absorbing devices. Due to their stable platform force and high peak-to-average ratio, they are widely used in automotive, aerospace, packaging engineering and other fields. Taking the aluminum honeycomb element as an example, it has the excellent characteristics of light structure, high rigidity, and high specific energy absorption, and it has become one of the preferred elements for collision energy absorption devices. The current honeycomb energy-absorbing devices are generally composed of a single piece of honeycomb core material or combined with a thin-walled metal shell. Its disadvantages: For rail trains and urban rail vehicles, it is difficult to rely on a single honeycomb element to effectively absorb huge impact kinetic energy. In other words...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F7/00
Inventor 高广军鲁寨军梁习锋许平姚松姚曙光谢素超王中钢
Owner CENT SOUTH UNIV
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