CN201136513Y

CN201136513Y - Energy-absorbing device of vehicle body

Info

Publication number: CN201136513Y
Application number: CNU2007203108263U
Authority: CN
Inventors: 刘龙玺; 张光伟; 王学亮; 王宝金; 田洪雷; 丁叁叁
Original assignee: CSR Sifang Locomotive and Rolling Stock Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2007-12-20
Filing date: 2007-12-20
Publication date: 2008-10-22
Anticipated expiration: 2017-12-20

Abstract

The utility model relates to a bodywork energy absorption device. Because an energy absorption beam which is arranged between the front and the back ends is adopted, a stronger stability can be achieved, and adequate energy absorption plastometric set room can be provided, so that the effect of the energy absorption can be maximized, the bodywork can be effectively protected from being damaged, the casualty of the carriages piling upwards is avoided, and the safety of vehicles and passengers can be ensured. The bodywork energy absorption device mainly comprises a front end seat, a back end seat and four energy absorption beams connected in the front end seat and the back end seat. The four energy absorption beams are respectively and parallelly arranged at four end corners between the front end seat and the back end seat along the lengthwise direction. Each energy absorption beam comprises two workpieces which are welded with each other to be fixed in the lengthwise direction. The energy absorption beams are distributed at the four end corners, so as to have stable effect, and the destabilization can not occur when the bodywork is stricken accidentally, so that the invalidation of the energy absorption device can be avoided. At the same time, the hollow space which is large enough can be generated, so that the energy absorption beam can generate the maximal plastometric set to absorb the energy as much as possible.

Description

Vehicle body energy absorption device

Technical Field

The utility model relates to a be applied to rail vehicle's automobile body energy-absorbing device belongs to the machine-building field.

Background

In order to reduce the accidental collision of the vehicle, protect the safety of passengers and avoid the vehicle from being damaged greatly on the railway vehicle which is put into use at present, an elastic energy absorbing device is usually additionally arranged on a coupler at the end part of the vehicle.

If the rear end of the anti-climbing tooth at the end part of the vehicle anti-climbing device is connected with the buffer block and the energy absorption block, the energy generated by the accidental collision of the vehicle is transmitted to the energy absorption block by utilizing the cavity in the buffer block, and the effect of absorbing the energy by utilizing the extrusion deformation of the shell of the buffer block during the collision of the vehicle body is achieved.

However, the existing structural improvement only depends on the arrangement of an elastic device at the rear end of the car coupler for absorbing energy, the installation space is limited, the size of the elastic energy absorbing device is limited, the energy absorbing numerical value is relatively low, and the energy absorbing requirement of the car in accidental collision is difficult to meet for the accident with the impact speed of more than 8 km/h. The car body can still be subjected to larger impact force, and even serious consequences of upward stacking of the carriage due to mutual collision can occur, thus causing great threat to the personal safety of passengers.

SUMMERY OF THE UTILITY MODEL

An object of the design of the utility model is to provide a novel automobile body energy-absorbing device to solve above-mentioned problem and not enough. The energy-absorbing beam arranged between the front end and the rear end is adopted, so that the stability is high, an enough energy-absorbing plastic deformation space is provided, the maximization of an energy-absorbing effect is achieved, the automobile body is effectively protected from being damaged, the serious accident that the carriage is piled up upwards is prevented, and the safety of the automobile and passengers is ensured.

In order to achieve the above design objective, the vehicle body energy absorption device mainly comprises:

front end seat and rear end seat, and connect 4 energy-absorbing roof beams wherein.

The 4 energy-absorbing beams are respectively arranged on 4 end corners between the front end seat and the rear end seat in the longitudinal direction and in parallel.

Each energy absorption beam comprises 2 workpieces, and the 2 workpieces are welded and fixed with each other along the longitudinal direction.

According to the integral scheme, the energy-absorbing beams are distributed on the four end corners, so that a stabilizing effect can be achieved, and instability can not be generated when the vehicle body is accidentally impacted, so that the failure of the energy-absorbing device is avoided; meanwhile, a large enough hollow space can be generated, so that the energy absorption beam generates maximum plastic deformation and absorbs energy as much as possible.

In order to further improve the energy absorption effect and guide the energy absorption beams to generate plastic deformation according to the design principle, a groove is arranged at the end part of each energy absorption beam close to the front end seat.

The design principle of the groove is that kinetic energy transmitted from the front end seat acts on the groove firstly, the groove is extruded and deformed firstly, and plastic deformation of the energy absorption beam can be guided through the groove.

In order to improve the integral structure of 4 energy-absorbing beams, a connecting plate 4 is connected between every two adjacent 2 energy-absorbing beams 3.

By adopting the technical characteristic of the connecting plate, the energy-absorbing beams arranged at the four end corners can be connected into a whole with a cavity inside, so that the plastic deformation of the 4 energy-absorbing beams is coordinated and consistent.

In order to further improve the deformation effect of the energy-absorbing beams when being impacted, a plurality of crossed reinforcing plates are arranged between 4 energy-absorbing beams, and the reinforcing plates respectively penetrate through the energy-absorbing beams and the connecting plate longitudinally and transversely and penetrate out of through holes formed in the connecting plate;

and the cross-shaped reinforcing plates are welded and fixed with the energy absorption beam and the connecting plate.

The reinforcing plates penetrate and are connected with the energy-absorbing beam along the longitudinal direction and the transverse direction in sequence at certain intervals, so that the integral structure of the energy-absorbing beam is reinforced, and the rigidity of a connecting frame of the energy-absorbing beam is distributed at intervals of strong and weak. The reinforcing plate penetrates through and is connected with the part of the energy absorption beam, and the rigidity of the reinforcing plate is improved.

When energy-absorbing deformation occurs, the energy-absorbing beam is compressed section by section like an accordion, and the absorbed energy is absorbed section by section.

Meanwhile, the through holes formed in the connecting plates play a role in facilitating the penetration of the reinforcing plates and the welding fixation.

In summary, the vehicle body energy absorption device has the advantages that the adopted energy absorption beam can realize the structural stability of the whole energy absorption device, an enough energy absorption deformation space is provided, the energy absorption effect is maximized, the vehicle body can be effectively protected from being damaged, the serious accident that a carriage is piled up upwards can be prevented, and the safety of vehicles and passengers can be ensured.

Drawings

The present invention will now be further described with reference to the following drawings

FIG. 1 is a schematic structural view of the energy absorption device of the vehicle body;

FIG. 2 is an internal schematic view of the energy absorbing beam.

As shown in fig. 1 and 2, the front end seat 1, the rear end seat 2, the energy absorbing beam 3, the workpiece 31, the workpiece 32, the groove 33, the connecting plate 4, the through hole 41, the reinforcing plate 5,

Detailed Description

Embodiment 1, as shown in fig. 1 and 2, the vehicle body energy absorbing device has a front end seat 1 and a rear end seat 2, which are connected to a rail vehicle's anti-creeper through the front end seat 1, and are connected to the end of the vehicle body through the rear end seat 2 and bolts.

Wherein, connect with 4 energy-absorbing roof beams 3 between front end seat 1 and

rear end seat

2, 4 energy-absorbing roof beams 3 are arranged on 4 end angles respectively along the longitudinal direction, parallelly.

Each energy-absorbing beam 3 comprises 2 workpieces which are welded and fixed with each other along the longitudinal direction.

As shown in fig. 2, the workpiece 31 is one of the workpieces of the previous energy-absorbing beam 3, and the workpiece 32 is one of the workpieces of the next energy-absorbing beam 3. A recess 33 is provided in the front end of the energy-absorbing beam 3. And a connecting plate 4 is connected between every two adjacent 2 energy-absorbing beams 3.

A plurality of cross-shaped reinforcing plates 5 are arranged between the 4 energy-absorbing beams 3, and the reinforcing plates 5 respectively penetrate through the energy-absorbing beams 3 and the connecting plates 4 in the longitudinal direction and the transverse direction, penetrate out of through holes formed in the connecting plates 4 and are fixedly welded with the energy-absorbing beams 3 and the connecting plates 4.

Claims

1. The utility model provides a car body energy-absorbing device, connects the tip at the automobile body which characterized in that: the energy absorption device is provided with a front end seat (1), a rear end seat (2) and 4 energy absorption beams (3) connected in the front end seat and the rear end seat; wherein,

4 energy-absorbing beams (3) are respectively arranged on 4 end angles between the front end seat (1) and the rear end seat (2) in the longitudinal direction and in parallel;

each energy absorption beam (3) comprises 2 workpieces, and the 2 workpieces are welded and fixed with each other along the longitudinal direction.

2. The vehicle body energy absorber of claim 1, wherein: a groove (33) is arranged at the end part of each energy-absorbing beam (3) close to the front end seat (1).

3. The vehicle body energy absorption device according to claim 1 or 2, wherein: a connecting plate (4) is connected between every two adjacent energy-absorbing beams (3).

4. The vehicle body energy absorber of claim 3, wherein: a plurality of cross-shaped reinforcing plates (5) are arranged between the 4 energy-absorbing beams (3), and the reinforcing plates (5) respectively penetrate through the energy-absorbing beams (3) and the connecting plates (4) along the longitudinal direction and the transverse direction and penetrate out of through holes (41) formed in the connecting plates (4);

the cross-shaped reinforcing plates (5) are welded and fixed with the energy absorption beam (3) and the connecting plate (4).