CN214028843U

CN214028843U - Connecting structure of upper longitudinal beam and upper cross beam

Info

Publication number: CN214028843U
Application number: CN202023220697.3U
Authority: CN
Inventors: 雷飞; 邱志锋; 黄启华; 方一格
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-24
Anticipated expiration: 2030-12-28

Abstract

The utility model provides a connection structure of last longeron and entablature, including setting up in the first connecting plate of last longeron side, first connecting plate stretches out in the outside of the longeron that makes progress, entablature and first connecting plate overlap joint. The utility model discloses increased the overlap area between last longeron and the entablature, formed the support to the entablature through last longeron, strengthened between longeron and the entablature joint strength, improved the rigidity of whole car.

Description

Connecting structure of upper longitudinal beam and upper cross beam

Technical Field

The utility model relates to an automobile body structural design field, concretely relates to connection structure of last longeron and entablature.

Background

Energy automobiles have become a major trend in the development of the automotive industry. In order to enhance the dynamic property of a new energy automobile, lightweight section bars are generally adopted in the design of a body framework of the new energy automobile, and at present, the connection among most section bars adopts a welding process. For the connection between the beams, the overlapping area of the two is small, and the strength and the durability of welding are difficult to ensure.

The utility model discloses a utility model patent that publication number is CN208291332U discloses a commercial car frame crossbeam connecting piece, including crossbeam connecting plate and longeron connecting plate, crossbeam connecting plate and longeron connecting plate form the L type through bending or punching press, and the both ends right angle turn of crossbeam connecting plate and longeron connecting plate is provided with the oblique brace, has seted up a plurality of crossbeam connecting bolt holes on the crossbeam connecting plate, has seted up a plurality of longeron connecting bolt holes on the longeron connecting plate. Connect the crossbeam through the connecting piece in this patent, promoted the rigidity of whole frame, nevertheless make overall structure more complicated through the connecting piece.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of the connection strength between the upper longitudinal beam and the upper cross beam, the utility model provides a simple structure's connection structure of upper longitudinal beam and upper cross beam, its concrete technical scheme as follows.

The utility model provides a connection structure of last longeron and entablature, is including setting up the first connecting plate in last longeron side, first connecting plate stretches out to the outside of last longeron, entablature and first connecting plate overlap joint.

Furthermore, a first sunken limiting groove is formed in the first connecting plate, the upper cross beam is inserted into the first limiting groove, and the width of the first limiting groove is equal to that of the upper cross beam.

Furthermore, the both sides of the open end of spacing groove are provided with first baffle and second baffle respectively, first baffle forms the second spacing groove with the cooperation of first spacing groove, the second baffle forms the third spacing groove with the cooperation of first spacing groove, the bottom of entablature is provided with the second connecting plate, the both sides of second connecting plate insert second spacing groove and third spacing inslot respectively.

Further, the overlapping area of the upper beam and the first connecting plate is connected by FDS flow drilling screw connection or SPR self-piercing riveting.

Furthermore, structural adhesive is filled between the upper cross beam and the first connecting plate.

Further, the upper cross beam comprises at least two convex parts arranged at intervals, and a cavity is formed in each convex part.

Has the advantages that: 1. the utility model provides a connection structure of last longeron and entablature sets up first connecting plate through the outside at last longeron, has increased the overlapping area between last longeron and the entablature, forms the support to the entablature through last longeron, has reinforceed between last longeron and the entablature joint strength, improves the rigidity of whole car.

2. The utility model provides a connection structure of last longeron and entablature through set up first spacing groove on first connecting plate for the entablature plug-in connects to first spacing inslot, has carried out the restriction to the horizontal direction of entablature, makes the effort of the transmission horizontal direction that longeron and entablature can be better, further strengthens the joint strength between longeron and the entablature.

3. The utility model provides a connection structure of last longeron and entablature, both sides through the open end at first spacing groove set up first baffle and second baffle respectively, make it form second spacing groove and third spacing groove, set up the second connecting plate in the bottom of entablature simultaneously, when the entablature inserts first spacing inslot, second spacing groove and third spacing inslot are inserted respectively at the both ends of first connecting plate, the vertical direction to the entablature has been restricted, make the effort of the more better transmission horizontal direction of last longeron and entablature enough, further strengthen the joint strength between longeron and the entablature.

Drawings

Fig. 1 is a schematic view of a connection structure of an upper longitudinal beam and an upper cross beam in an embodiment of the present invention;

fig. 2 is a partial sectional view of a connection structure of an upper longitudinal beam and an upper cross beam in embodiment 1 of the present invention;

fig. 3 is a partial cross-sectional view of a connection structure of an upper longitudinal beam and an upper cross beam in embodiment 2 of the present invention;

fig. 4 is a partial sectional view of a connection structure of an upper longitudinal beam and an upper cross beam in embodiment 3 of the present invention.

Reference numerals: 1-upper longitudinal beam; 2-upper beam; 3-a first connection plate; 4-a first limiting groove; 5-a first baffle; 6-a second baffle; 7-a second limiting groove; 8-a third limiting groove; 9-a boss; 10-cavity.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 and 2, the present embodiment provides a connection structure of an upper longitudinal beam 1 and an upper transverse beam 2, comprising a first connection plate 3 disposed at a side of the upper longitudinal beam 1, wherein the first connection plate 3 extends to an outer side of the upper longitudinal beam 1, and the upper transverse beam 2 is overlapped with the first connection plate 3.

In this embodiment, make the overlap region increase between entablature 2 and the last longeron 1 through setting up first connecting plate 3, form the support to entablature 2 through last longeron 1, strengthened between longeron 1 and the entablature 2 joint strength, improve the rigidity of whole car to simple structure, easily realization are favorable to the lightweight design of car.

Specifically, for the overlapping area between the first connecting plate 3 and the upper cross beam 2, FDS flow drill screw connection or SPR self-piercing riveting is used. The space between the upper cross beam 2 and the upper longitudinal beam 1 can also be filled with structural adhesive.

Example 2

As shown in fig. 1 and 3, the present embodiment provides a connection structure of an upper longitudinal beam 1 and an upper transverse beam 2, comprising a first connection plate 3 disposed at a side of the upper longitudinal beam 1, wherein the first connection plate 3 extends to an outer side of the upper longitudinal beam 1, and the upper transverse beam 2 is overlapped with the first connection plate 3.

In this embodiment, the first connecting plate 3 is further provided with a recessed first limiting groove 4, when the upper longitudinal beam 1 and the upper cross beam 2 are connected, the upper cross beam 2 is inserted into the first limiting groove 4, and since the width of the first limiting groove 4 is equal to the width of the upper cross beam 2, the movement of the upper cross beam 2 in the horizontal direction is limited by the first limiting groove 4, so that the upper longitudinal beam 1 and the upper cross beam 2 can better transmit the acting force in the horizontal direction, and the connection strength between the upper longitudinal beam 1 and the upper cross beam 2 is further enhanced.

In this embodiment, the upper beam 2 is inserted into the first stopper groove 4, and FDS flow drill bolting or SPR self-piercing riveting is used in the overlapping region between the first connection plate 3 and the upper beam 2. Structural glue can be smeared in the first limiting groove 4 to connect the upper cross beam 2 and the upper longitudinal beam 1.

Example 3

As shown in fig. 1 and 4, the present embodiment provides a connection structure of an upper longitudinal beam 1 and an upper transverse beam 2, comprising a first connection plate 3 disposed at a side of the upper longitudinal beam 1, wherein the first connection plate 3 extends to an outer side of the upper longitudinal beam 1, and the upper transverse beam 2 is overlapped with the first connection plate 3.

In this embodiment, a first concave limiting groove 4 is further formed in the first connecting plate 3, a first baffle 5 and a second baffle 6 are respectively disposed on two sides of an opening end of the first limiting groove 4, the first baffle 5 and the first limiting groove 4 are matched to form a second limiting groove 7, the second baffle 6 and the first limiting groove 4 are matched to form a third limiting groove 8, a second connecting plate is disposed at the bottom of the upper cross beam 2, the second connecting plate extends outwards from two sides of the upper cross beam 2, and two sides of the second connecting plate are respectively inserted into the second limiting groove 7 and the third limiting groove 8.

In this embodiment, when inserting entablature 2 into first spacing groove 4, the both sides of second connecting plate also insert second spacing groove 7 and third spacing inslot 8 respectively, the removal of entablature 2 horizontal direction has been restricted through first spacing groove 4, the removal of entablature 2 vertical direction has been restricted through second spacing groove 7 and third spacing groove 8, make entablature 2, the effort of transmission horizontal direction and vertical direction that can be better between the entablature 1, the joint strength between entablature 1 and entablature 2 has further been strengthened.

In this embodiment, the upper beam 2 is inserted into the first stopper groove 4, and FDS flow drill bolting or SPR self-piercing riveting is used in the overlapping region between the first connection plate 3 and the upper beam 2. When the upper longitudinal beam 1 and the upper cross beam 2 are connected, a screw or a rivet penetrates through the second connecting plate and the first connecting plate 3 downwards along the first baffle 5 or the second baffle 6. Specifically, a screw or a rivet is sequentially inserted through the first baffle 5, the second connecting plate, and the first connecting plate 3, or sequentially inserted through the second baffle 6, the second connecting plate, and the first connecting plate 3.

In this embodiment, the upper cross beam 2 includes two protruding portions 9 arranged at intervals, and two cavities 10 are formed in the two protruding portions 9, so that on one hand, the requirement of lightweight design of an automobile is met, on the other hand, the horizontal bearing capacity of the upper cross beam 2 is enhanced, and deformation caused by the horizontal acting force of the upper longitudinal beam 1 is reduced.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the technical field of the utility model belongs to the prerequisite without departing from the utility model discloses the utility model, can also make a plurality of equal substitution or obvious variant, and performance or usage are the same moreover, all should regard as belonging to within the scope of protection of the utility model.

Claims

1. The connecting structure of the upper longitudinal beam and the upper cross beam is characterized by comprising a first connecting plate (3) arranged on the side face of the upper longitudinal beam (1), wherein the first connecting plate (3) extends out of the outer side of the upper longitudinal beam (1), and the upper cross beam (2) is in lap joint with the first connecting plate (3).

2. The connecting structure of the upper longitudinal beam and the upper transverse beam is characterized in that a first concave limiting groove (4) is formed in the first connecting plate (3), the upper transverse beam (2) is inserted into the first limiting groove (4), and the width of the first limiting groove (4) is equal to that of the upper transverse beam (2).

3. A connecting structure of an upper longitudinal beam and an upper cross beam according to claim 2, wherein a first baffle (5) and a second baffle (6) are respectively arranged on two sides of an opening end of the limiting groove, the first baffle (5) and the first limiting groove (4) are matched to form a second limiting groove (7), the second baffle (6) and the first limiting groove (4) are matched to form a third limiting groove (8), a second connecting plate is arranged at the bottom of the upper cross beam (2), and two sides of the second connecting plate are respectively inserted into the second limiting groove (7) and the third limiting groove (8).

4. An upper longitudinal beam and upper transverse beam connecting structure according to any one of claims 1 to 3, characterized in that the overlapping area of the upper transverse beam (2) and the first connecting plate (3) is connected by FDS flow drilling screw or SPR self-piercing riveting.

5. The connecting structure of the upper longitudinal beam and the upper transverse beam is characterized in that structural adhesive is filled between the upper transverse beam (2) and the first connecting plate (3).

6. A connecting structure of an upper longitudinal beam and an upper transverse beam according to any one of claims 1 to 3, characterized in that the upper transverse beam (2) comprises at least two spaced-apart protrusions (9), and a cavity (10) is formed in each protrusion (9).