CN211943328U

CN211943328U - Energy-absorbing structure easy to trigger initial force

Info

Publication number: CN211943328U
Application number: CN202020481276.7U
Authority: CN
Inventors: 张庆成; 陈英杰; 彭茜; 孙立洲
Original assignee: Wuhan CRRC Long Passenger Railway Vehicles Co Ltd
Current assignee: Wuhan CRRC Long Passenger Railway Vehicles Co Ltd
Priority date: 2020-04-05
Filing date: 2020-04-05
Publication date: 2020-11-17
Anticipated expiration: 2030-04-05

Abstract

The utility model relates to an easily trigger energy-absorbing structure of initial force, including the energy-absorbing pipe, be provided with a plurality of cutting layers on the energy-absorbing pipe, the lower extreme from the top down of cutting layer is convergent form setting, and the downside of cutting layer is provided with the cutter standing groove, and the bottom butt of planing cutter, planing cutter and cutting layer has been placed to cutter standing groove department. When a vehicle collides, the energy absorption pipe moves downwards, the position of the planing tool is unchanged, the planing tool starts to cut a cutting layer, the initial contact area between the planing tool and the cutting layer is smaller in the process that the energy absorption pipe moves downwards, the contact area is larger and larger, the initial cutting area is reduced, the initial force is reduced, the high initial force in the collision can be effectively buffered, and the safety performance of the vehicle is improved.

Description

Energy-absorbing structure easy to trigger initial force

Technical Field

The utility model belongs to the technical field of the anticreeper technique and specifically relates to an energy-absorbing structure who easily triggers initial power is related to.

Background

People pay more and more attention to trip safety nowadays, and car end anti-creep energy-absorbing device also uses more and more, and is more and more important. A planing type anti-creeper is one of common vehicle-end anti-creep energy-absorbing devices, wherein a cutter and an energy-absorbing pipe are core energy-absorbing components. The performance of the anti-creep energy-absorbing device is mainly considered from two important parameters of cutting force and energy-absorbing stroke, the energy-absorbing tube is a cut part in the energy-absorbing process, and the surface layer of the energy-absorbing tube is cut, convoluted and shed by a cutter to dissipate the energy of vehicle body collision. The material and cutting thickness of the energy absorption pipe determine the size of the energy absorption.

At present, the front-end energy absorption structure of the railway vehicle mainly takes a car coupler and an anti-creeper for energy absorption, the energy absorption energy after design and calculation meets the overall requirements, but in actual collision, the average force is greatly different from the initial force, if the integral energy absorption condition is met, the initial force is about 1.5-2 times of the average force, and the high initial force is extremely unfavorable for the whole performance environment and can seriously cause the life safety of passengers. There is therefore a need for an energy absorbing structure that is easy to trigger initial forces to cushion high initial forces in a collision and improve the safety of the vehicle.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide an energy-absorbing structure who easily triggers initial force to high initial force in the buffering collision improves the security performance of vehicle.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides an easily trigger energy-absorbing structure of initial force, includes the energy-absorbing pipe, be provided with a plurality of cutting layers on the energy-absorbing pipe, the lower extreme from the top down of cutting layer is the convergent setting, the downside of cutting layer is provided with the cutter standing groove, the planing tool has been placed to cutter standing groove department, the planing tool with the bottom butt on cutting layer.

Preferably, the energy absorbing structure is provided with a cutting groove on two sides of the cutting layer.

Preferably, the energy absorbing structure is characterized in that the lower end of the cutting layer is in a circular arc shape.

Preferably, the energy absorbing structure is characterized in that the lower end of the cutting layer is in an inverted triangle shape.

Preferably, the energy absorbing structure is characterized in that the lower end of the cutting layer is in an inverted trapezoid shape.

The utility model has the advantages that: when a vehicle collides, the energy absorption pipe moves downwards, the position of the planing tool is unchanged, the planing tool starts to cut a cutting layer, the initial contact area between the planing tool and the cutting layer is smaller in the process that the energy absorption pipe moves downwards, the contact area is larger and larger, the initial cutting area is reduced, the initial force is reduced, the high initial force in the collision can be effectively buffered, and the safety performance of the vehicle is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a third embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. energy absorption pipe, 2, planing cutter, 3, cutting groove, 4, cutter placing groove, 5 and cutting layer.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, 2 and 3, the energy-absorbing structure capable of easily triggering the initial force comprises an energy-absorbing pipe 1, wherein a plurality of cutting layers 5 are arranged on the energy-absorbing pipe 1, the lower ends of the cutting layers 5 are arranged in a tapered shape from top to bottom, a cutter placing groove 4 is arranged on the lower side of each cutting layer 5, a planing cutter 2 is placed at the position of each cutter placing groove 4, and the planing cutter 2 is abutted to the bottom of each cutting layer 5. Cutting grooves 3 are provided on both sides of the cutting layer 5. The lower end of the cutting layer 5 may be in the shape of an arc, an inverted triangle, an inverted trapezoid, or other shapes that gradually narrow from top to bottom.

When a vehicle collides, the energy absorption pipe 1 moves downwards, the position of the planing tool 2 is unchanged, the planing tool 2 starts to cut the cutting layer 5, the initial contact area between the planing tool 2 and the cutting layer 5 is smaller in the downward movement process of the energy absorption pipe 1, and then the contact area is larger and larger, so that the initial cutting area is reduced, the initial force is reduced, the high initial force in the collision can be effectively buffered, and the safety performance of the vehicle is improved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an easily trigger energy-absorbing structure of initial force which characterized in that: including energy-absorbing pipe (1), be provided with a plurality of cutting layers (5) on energy-absorbing pipe (1), the lower extreme from the top down of cutting layer (5) is the convergent setting, the downside of cutting layer (5) is provided with cutter standing groove (4), planing cutter (2) have been placed to cutter standing groove (4) department, planing cutter (2) with the bottom butt of cutting layer (5).

2. The energy absorbing structure that is susceptible to triggering an initial force of claim 1, wherein: and cutting grooves (3) are formed in the two sides of the cutting layer (5).

3. The energy absorbing structure that is susceptible to triggering an initial force of claim 1, wherein: the lower end of the cutting layer (5) is arc-shaped.

4. The energy absorbing structure that is susceptible to triggering an initial force of claim 1, wherein: the lower end of the cutting layer (5) is in an inverted triangle shape.

5. The energy absorbing structure that is susceptible to triggering an initial force of claim 1, wherein: the lower end of the cutting layer (5) is in an inverted trapezoid shape.