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Buffer energy absorption device

A technology of energy-absorbing devices and cushioning parts, which is applied in the field of coupler cushioning, can solve the problems of damage to impact objects and high strength of the car body, and achieve the effect of protecting impact objects

Pending Publication Date: 2020-08-25
CRRC QINGDAO SIFANG ROLLING STOCK RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Taking the application of the energy-absorbing device on trains as an example, due to the heavy weight of the train and the high strength of the car body, the energy-absorbing device mainly works when the speed of the train is slow such as traction or braking, but when the impact speed is very high When it is high, the high-impedance buffer energy-absorbing device may behave as a rigid component, causing certain damage to the impacted object

Method used

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Examples

Experimental program
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Effect test

Embodiment 2

[0090] refer to image 3 and Figure 4 , is a gas-liquid buffer. The further structure of the second buffer mechanism is as follows:

[0091] The wall of the cylinder is provided with a through hole 604 connecting the gap cavity and the inner cavity of the cylinder. There are multiple through holes 604 arranged on the wall of the cylinder along the axial direction. The damping can be adjusted by adjusting the diameter of the through hole 604 . The cylinder cavity 603 and the gap cavity 1003 are filled with a gas-liquid mixture.

[0092] The principle and mechanism of the buffer energy-absorbing device of the second implementation structure are described as follows:

[0093] Part of the first buffer unit inflates the first cylinder cavity through the gas filling hole 101, and the second buffer unit part rushes into the cylinder cavity 603 through the first filling hole 703. For example, a certain amount of liquid can be filled. Hydraulic oil and gas. compressed state as ...

Embodiment 3

[0095] refer to Figure 5 and Figure 6 , is a gas buffer. A throttling ring 11 is arranged in the gap cavity, and a through hole is arranged on the throttling ring 11, which communicates with the gap cavities on both sides of the throttling ring 11, and the cylinder inner cavity 603 and the gap cavity 1003 are filled with gas.

[0096] The principle mechanism of the buffer energy-absorbing device of the third implementation structure is described as follows:

[0097] The first buffer unit is filled with air through the gas filling hole 101 , and the second buffer unit is filled with gas through the first filling hole 703 . compressed state as Figure 6 As shown, when the gas buffer is subjected to high-speed impact, the elastic force transmission member 3 first acts as a buffer, and the force transmission member 3 moves together with the end cover piston 2 to compress the gas in the cavity of the first cylinder 1 until the end cover The piston 2 is in contact with the buf...

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Abstract

The invention provides a buffer energy absorption device which comprises a first buffer unit and a second buffer unit, wherein the first buffer unit comprises a force transmission part arranged facingthe force application direction and a first buffer mechanism capable of being triggered by the force transmission part; and the second buffer unit is connected with the first buffer unit through a middleware, and the second buffer unit comprises a second buffer mechanism which can be triggered by the middleware. According to the buffer energy absorption device, through the multi-stage combined buffer energy absorption structure, the buffer energy absorption structure can trigger buffer energy absorption stage by stage under the action of ultrahigh-speed impact, the requirement for ultralow resistance is met, and objects with relatively small mass can be protected against damage under the action of ultrahigh-speed impact.

Description

technical field [0001] The invention relates to the technical field of coupler buffering, in particular to a buffering energy-absorbing device. Background technique [0002] Buffer energy-absorbing devices are used to absorb the collision or stretching energy of objects, especially in the fields of transportation and aerospace, and are used to absorb the collision energy of moving objects to ensure the safety of the moving objects themselves. In order to improve the absorbing capacity of the energy-absorbing device, in the prior art, the high-impedance energy-absorbing device is pursued to ensure the safety of the object installed with the energy-absorbing device. The higher the impedance, the higher the energy absorption capacity and the higher the safety factor. [0003] Taking the application of the energy-absorbing device on trains as an example, due to the heavy weight of the train and the high strength of the car body, the energy-absorbing device mainly works when the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61G11/12
CPCB61G11/12
Inventor 杜锦涛毛从强齐亚文李辛高晗谢想宿方宗林建军孟繁彬
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST