CN216916032U

CN216916032U - Sub vehicle frame collision bending energy-absorbing longitudinal beam

Info

Publication number: CN216916032U
Application number: CN202123131226.XU
Authority: CN
Inventors: 罗世兵; 姚李军; 万光强; 周卫林; 于亚静; 杨振; 王立忠; 刘宇; 张兴状; 李栋
Original assignee: Shanghai Zesheng Automobile Technology Co ltd
Current assignee: Guangqi Honda Automobile Research and Development Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-07-08
Anticipated expiration: 2031-12-14

Abstract

The utility model provides an auxiliary frame collision bending energy-absorbing longitudinal beam which comprises a longitudinal beam body, wherein the rear end of the longitudinal beam body is connected with the auxiliary frame body, the front end of the longitudinal beam body is connected with a front end cross beam assembly of an auxiliary frame, the longitudinal beam body is a square tube, one side, close to the auxiliary frame body, of the square tube is provided with a bending surface, and the bending surface is composed of two crushing holes which are arranged at intervals and a groove far away from the two crushing holes. According to the automobile auxiliary frame, the two collapse holes and the groove form the bending surface, when collision occurs, the longitudinal beam body transmits force to the front end beam assembly of the auxiliary frame, at the moment, the longitudinal beam body is stressed to bend and absorb energy, the bending direction is that the front end is upward, and the rear end is downward, so that injury to people in an automobile is reduced.

Description

Sub vehicle frame collision bending energy-absorbing longitudinal beam

Technical Field

The utility model relates to the technical field of automobile aluminum alloy structural members, in particular to an auxiliary frame collision bending energy-absorbing longitudinal beam.

Background

In recent years, the demand for lightweight automobiles is higher and higher, and aluminum alloy is applied to structural members of various systems of automobiles in large quantities due to high specific strength, and particularly, the application of aluminum alloy is more and more in the field of auxiliary frames of chassis. In addition, the requirements on the safety level of the automobile are higher and higher, the traditional automobile type is an anti-collision beam and absorbs energy of the automobile body in the collision process, the injury to front cabin personnel is reduced, and the new automobile enterprise and the new automobile type require that the auxiliary automobile frame also plays a role in absorbing energy of collision in the collision process.

When the collision happens, how to bend the auxiliary frame longitudinal beam to absorb energy when the collision happens reduces the injury to the rear-end cockpit personnel, and becomes the problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides an auxiliary frame collision bending energy-absorbing longitudinal beam to solve at least one technical problem.

The technical scheme of the utility model is as follows: the utility model provides an energy-absorbing longeron of bending is collided to sub vehicle frame, includes the longeron body, and the sub vehicle frame body is connected to the rear end of longeron body, and the front end crossbeam assembly of sub vehicle frame is connected to the front end of longeron body, the longeron body is square pipe, and one side that square pipe is close to the sub vehicle frame body is provided with the face of bending, and the face of bending comprises two distance arrangement's collapse hole and a recess of keeping away from two collapse holes.

According to the automobile auxiliary frame, the two collapse holes and the groove form the bending surface, when collision occurs, the longitudinal beam body transmits force to the front end beam assembly of the auxiliary frame, at the moment, the longitudinal beam body is stressed to bend and absorb energy, the bending direction is that the front end is upward, and the rear end is downward, so that injury to people in an automobile is reduced.

Preferably, four end-to-end surfaces of the square tube in the direction around the axis are a first side surface, a second side surface, a third side surface and a fourth side surface respectively; the two collapse holes are symmetrically arranged right-angle structures, and one side of each of the two right-angle structures is located on the same first side face. The other sides of the two right-angle structures are respectively positioned on the second side surface and the fourth side surface.

The utility model adopts two symmetrically arranged right-angle structure collapse holes, so that active collapse is easier to realize at the corner points of the right-angle structure in the collision process, and the effect of the collapse holes is enhanced.

Drawings

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

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a rear view of the present invention.

In the figure: 1. a stringer body; 2. a subframe body; 3. a front end beam assembly; 101. a first collapsing hole; 102. a second collapsing hole; 103. and (4) a groove.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The embodiment I, a sub vehicle frame collision energy-absorbing longeron of bending, refer to fig. 1, fig. 3, including longeron body 1, sub vehicle frame body 2 is connected to the rear end of longeron body 1, and the front end crossbeam assembly 3 of sub vehicle frame is connected to the front end of longeron body 1, longeron body 1 is square pipe, and one side that square pipe is close to sub vehicle frame body 2 is provided with the face of bending, and the face of bending comprises two bursting shrinkage cavities that the interval was arranged and a recess 103 of keeping away from two bursting shrinkage cavities. According to the automobile auxiliary frame, the two collapse holes and the groove form the bending surface, when collision occurs, the longitudinal beam body transmits force to the front end beam assembly of the auxiliary frame, at the moment, the longitudinal beam body is stressed to bend and absorb energy, the bending direction is that the front end is upward, and the rear end is downward, so that injury to people in an automobile is reduced.

In the second embodiment, on the basis of the first embodiment, referring to fig. 1 and fig. 2, four end-to-end surfaces of the square tube in the direction around the axis are a first side surface, a second side surface, a third side surface and a fourth side surface, respectively; the two collapse holes are symmetrically arranged right-angle structures, and one side of each of the two right-angle structures is located on the same first side face. The other sides of the two right-angle structures are respectively positioned on the second side surface and the fourth side surface. The utility model adopts two symmetrically arranged right-angle structure collapse holes, so that active collapse is easier to realize at the corner points of the right-angle structure in the collision process, and the effect of the collapse holes is enhanced.

In the third embodiment, on the basis of the second embodiment, referring to fig. 3 and 4, the groove 103 is an arc surface, the arc surface is an inferior arc surface, the groove 103 penetrates through the third side surface where the groove is located, and an opening of the inferior arc surface is far away from the longitudinal beam body 1. Chamfers are arranged at two ends of the groove 103, and the two chamfers are respectively located at the junction of the second side surface and the third side surface and at the junction of the third side surface and the fourth side surface. According to the automobile longitudinal beam, the groove penetrating through the third side face is adopted, and when an automobile is impacted, the penetrating groove can guide the longitudinal beam body to perform compression deformation, so that the impact force applied to the longitudinal beam body at the initial impact stage is reduced, the damage of the impact force to the longitudinal beam body is reduced, and the automobile longitudinal beam plays a role in protecting personnel in the automobile.

In the fourth embodiment, on the basis of the second embodiment, the two collapse holes respectively correspond to the first collapse hole 101 and the second collapse hole 102, any one side of the right-angle structure is a semi-ellipse, and the arc bottom of the semi-ellipse is close to one side of the center line of the longitudinal beam body 1 on the side where the semi-ellipse is located. The collapse holes are of a right-angle structure formed by the two semi-elliptical holes, and deformation of the longitudinal beam body during bending is facilitated.

Fifth, on the basis of the fourth embodiment, referring to fig. 2, third collapsing holes and fourth collapsing holes are arranged at intervals in the middle of the first side surface in the axial direction, and the third collapsing holes and the fourth collapsing holes are respectively located on two sides of a central connecting line of the first collapsing holes 101 and the second collapsing holes 102, wherein the third collapsing holes are close to one side of the subframe body 2, and the third collapsing holes are close to a central connecting line of the first collapsing holes 101 and the second collapsing holes 102; the third collapse hole and the fourth collapse hole are through holes.

In a sixth embodiment, on the basis of the fifth embodiment, referring to fig. 4, the axial middle part of the third side surface is provided with fifth collapsing holes and sixth collapsing holes which are arranged at intervals, the fifth collapsing holes and the sixth collapsing holes are respectively located at two sides of the groove 103, wherein the fifth collapsing holes are close to one side of the subframe body 2, and the fifth collapsing holes are close to the groove 103; the fifth collapse hole and the sixth collapse hole are through holes.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an auxiliary frame collision energy-absorbing longeron of bending, includes longeron body (1), and auxiliary frame body (2) are connected to the rear end of longeron body (1), and front end beam assembly (3), its characterized in that of auxiliary frame are connected to the front end of longeron body (1): the auxiliary frame is characterized in that the longitudinal beam body (1) is a square tube, one side of the square tube, which is close to the auxiliary frame body (2), is provided with a bending surface, and the bending surface is composed of two collapse holes which are arranged at intervals and a groove (103) which is far away from the two collapse holes.

2. The subframe crash bend energy absorbing longitudinal beam of claim 1, wherein: four end-to-end surfaces of the square tube in the direction around the axis are a first side surface, a second side surface, a third side surface and a fourth side surface respectively;

the two collapse holes are symmetrically arranged right-angle structures, and one side of each of the two right-angle structures is located on the same first side face.

3. The subframe crash bend energy absorbing longitudinal beam of claim 2, wherein: the groove (103) is an inferior arc surface, the groove (103) penetrates through the third side surface, and an opening of the inferior arc surface is far away from the longitudinal beam body (1).

4. The subframe crash bend energy absorbing longitudinal beam of claim 2, wherein: the other sides of the two right-angle structures are respectively positioned on the second side surface and the fourth side surface.

5. The subframe crash bend energy absorbing longitudinal beam of claim 4, wherein: the two collapse holes respectively correspond to the first collapse hole (101) and the second collapse hole (102), any one side of the right-angle structure is semi-elliptical, and the arc bottom of the semi-elliptical is close to one side of the central line of the longitudinal beam body (1) on the plane where the arc bottom is located.

6. The subframe crash bend energy absorbing longitudinal beam of claim 4, wherein: chamfers are arranged at two ends of the groove (103), and the two chamfers are respectively located at the junction of the second side surface and the third side surface and at the junction of the third side surface and the fourth side surface.