CN210174968U - Auxiliary frame pipe beam structure and automobile with same - Google Patents

Abstract

The utility model provides a sub vehicle frame tubular beam structure, include the sub vehicle frame and locate the locating support on the sub vehicle frame, the sub vehicle frame is including the longeron that is located the vehicle both sides and violently locate crossbeam between the longeron, the locating support rigid coupling in the rear end portion of longeron. The utility model discloses still relate to an automobile, through the overall structure who optimizes the tubular beams to on the basis of the intensity of guaranteeing the assembly, greatly promote the structure utilization ratio of tubular beams (crossbeam and longeron).

Description

Auxiliary frame pipe beam structure and automobile with same

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a sub vehicle frame tubular beam structure and car that has this structure.

Background

The sub-frame, as a connection unit of the vehicle body and the wheel system, bears the force and moment transmitted by the chassis, and simultaneously plays a role in isolating vibration and noise, so that the sub-frame plays an important role in a suspension system. The subframe is divided into a full-frame subframe and a half-frame subframe according to the structural form, and the half-frame subframe is mostly applied to a front suspension system and the full-frame subframe is mostly applied to a rear suspension system due to the chassis layout factor.

Due to the structural characteristics of the full-frame type auxiliary frame, the full-frame type auxiliary frame is mostly applied to a multi-connecting-rod suspension system, and the auxiliary frame is mostly provided with connecting structures such as a rod system and a swing arm.

Fig. 1 is a schematic structural diagram of an auxiliary frame structure in the prior art, the auxiliary frame is a full-frame auxiliary frame structure formed by longitudinal beams 1 and cross beams 2, a front cross beam 2a and the longitudinal beams 1 are formed by tailor welding through a bent pipe structure, and a rear cross beam 2b is formed by tailor welding through metal plates.

In this prior art, front beam and longeron splice welding at straight position, and the two welding strength is weaker, and such welding arrangement simultaneously, has high expectations to front beam's rigidity, can cause the used material of crossbeam more, and weight is high and be unfavorable for the lightweight of vehicle.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a sub-frame tubular beam structure and an automobile having the same, which can optimize a tubular beam (cross beam and side beam) assembling structure and improve mounting strength without reducing the level of weight reduction.

The utility model provides a sub vehicle frame tubular beam structure, include the sub vehicle frame and locate the locating support on the sub vehicle frame, the sub vehicle frame is including the longeron that is located the vehicle both sides and violently locating crossbeam on the longeron, the front end height of longeron is less than the rear end height of longeron.

In one embodiment, the longitudinal beam is integrally of an S-shaped structure.

In a specific embodiment, the cross beam comprises a front cross beam and a rear cross beam, the front cross beam is transversely arranged at the front end of the longitudinal beam, and the rear cross beam is transversely arranged between the middle rear parts of the longitudinal beam.

In one embodiment, the two end portions of the front cross beam are higher than the middle portion to form a concave shape, and the longitudinal beam is fixedly connected to the bending portion of the front cross beam.

In a specific embodiment, the sub-frame tubular beam structure further includes a positioning bracket disposed on the sub-frame, and the positioning bracket is fixedly connected to the rear end portion of the longitudinal beam.

The utility model also provides a car, it includes above sub vehicle frame tubular beam structure.

To sum up, the utility model provides a sub vehicle frame tubular beams structure utilizes arranging the trend of crossbeam and longeron to through selecting both reasonable tailor-welded positions, with the overall structure of at utmost optimization tubular beams, on the basis of the intensity of guaranteeing the assembly, greatly promote the structure utilization ratio of tubular beams (crossbeam and longeron).

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a subframe structure according to the prior art;

fig. 2 is a schematic structural view of an embodiment of the sub-frame tubular beam structure of the present invention;

FIG. 3 is a schematic structural view of the mounting bracket of FIG. 2;

fig. 4 is a schematic structural view of fig. 2 from another view angle.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the invention, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 2, the present invention provides a sub frame tubular beam structure, which comprises a sub frame 10 and a positioning bracket 20 disposed on the sub frame 10.

The auxiliary frame 10 comprises longitudinal beams 11 positioned on two sides of a vehicle and cross beams 12 transversely arranged on the longitudinal beams 11, the front end height of the longitudinal beams 11 positioned on the two sides of the vehicle is lower than the rear end height of the longitudinal beams 11, and the longitudinal beams 11 are in an S-shaped trend; crossbeam 12 includes front beam 12a and rear beam 12b, front beam 12a violently locates the front end of longeron 11, rear beam 12b violently locates between the middle and rear portion of longeron 11, and front beam 12 a's both ends are higher than the middle part, make front beam 12a be "concave" font trend, and the front end of longeron 11 welds in front beam 12 a's the department of bending, can increase longeron 11 and front beam 12 a's area of contact, welding strength has effectively been promoted, simultaneously because longeron 11 and front beam 12 a's welding point is located front beam 12 a's turning point department, make front beam 12a can carry out high-efficient the support to whole sub vehicle frame vertically, effectively reduce the impact.

The utility model discloses utilize arranging the trend of longeron 11 and crossbeam 12, select reasonable tailor-welded position, can effectively promote rigid coupling intensity between them, reduce the rigidity demand to crossbeam 12, still promote the structural utilization rate of tubular beams (longeron 11 and crossbeam 12) when promoting the lightweight.

In the present invention, the rear cross member 12b is provided at the rear portion of the longitudinal beam 11. In a preferred embodiment, a first mounting point for mounting a vehicle body is welded in the middle of the rear end (higher end) of the longitudinal beam 11, and a second mounting point for mounting the vehicle body is welded in the recessed part between the two ends of the front cross beam 12a, and the mounting function of the auxiliary frame is fully utilized by utilizing the staggered arrangement of the space, so that the utilization rate of the auxiliary frame is effectively improved; just the utility model discloses in, first mounting point and second mounting point are the installation sleeve pipe to be used for with the assembly of automobile body.

Specifically, the rear cross beam 12b includes a sheet metal part formed by welding two transverse sheet metals and a reinforcing part located at the bottom of the sheet metal part; specifically, the utility model discloses an it is integrative to weld through the welding seam in the upper end of two horizontal panel beating to guarantee the rigidity and the intensity of crossbeam 12 itself, and then ensure the shock resistance among the vehicle operation process. In a preferred embodiment provided by the utility model, because the strength of the end part and the middle part of the metal plate part is smaller, the welding seam comprises a middle welding seam and an end welding seam which are positioned at the middle part and the two end parts above the metal plate part, so that the weight of the whole welding seam is reduced as much as possible, the light weight level is ensured, and the structural strength of the rear cross beam 12b is ensured; accordingly, the reinforcement portion further includes three reinforcement plates laid in the middle section and both end sections of the bottom portion of the sheet metal portion (lower in fig. 2, also the bottom portion of the base portion) to further optimize the strength or rigidity of the cross member 12. Shape of

More in detail, as shown in fig. 2 and 4, the whole sheet metal part that is "L" shape structure of being after rear beam 12b stitch welding, that is, the sheet metal part is including the first panel metal that is located the upper end and the second panel metal that is located the first panel metal of side and the first panel metal of perpendicular to of first panel metal, the upper end of first panel metal is straight, and the design has type "arch bridge" structure that is used for car components such as blast pipe to pass on the second panel metal, because type "arch bridge" structure has better intensity, simultaneously, the utility model discloses a design into "fan-shaped" structure with rear beam 12 b's both ends to increase rear beam 12 b's both ends and longeron 11's area of contact, promote the intensity of welding department by a wide margin, guarantee whole car intensity.

It can be understood that, in another embodiment provided by the present invention, the sheet metal portion of the rear cross member 12b can be designed into a "U" shaped structure with better strength, and three reinforcing plates are arranged at the positions which need to be reinforced, such as the two ends and the middle of the rear cross member 12b with the "U" shaped structure, so as to optimize the structure of the rear cross member 12b to the maximum extent. In other specific embodiments, the sheet metal portion 12e may also be a "V" shaped sheet metal structure with other structure strength, which is not described herein in detail.

Referring to fig. 3 and 4 together, the present invention further includes a positioning bracket 20.

The rear end of locating support 20 rigid coupling in longeron 11, and locating support 20 is located crossbeam 12's rear, just in the preferred embodiment of the utility model provides a, locating support 20 is through welded fastening in the rear end of longeron 11, also promptly, the utility model discloses an adopt solitary locating support 20 to utilize anchor clamps at locating support 20 welded in-process, guarantee the precision of its location benchmark, reduce the disability rate when reducing the welding degree of difficulty of whole sub vehicle frame.

Referring to fig. 4 again, locating support 20 includes base plate 21, locates first turn-ups 22 at a marginal edge on base plate 21 and the second turn-ups 23 adjacent with first turn-ups 22, and first turn-ups 22 and second turn-ups 23 are formed by the outside extension of the surface of base plate 21, and the back end rigid coupling of longeron 11 is in near first turn-ups 22 and second turn-ups 23's junction, the utility model provides a locating support 20 is stamping forming, and still the design has the enhancement turn-ups on the locating support 20 to effectively guarantee locating support 20's intensity and with the automobile body, sub vehicle frame 10's installation strength.

Further, the utility model discloses well locating support 20 still includes main locating support 20a and vice locating support 20b, base plate 21 is including locating the main base plate on main locating support 20a and locating the vice base plate on the vice locating support 20b, be equipped with the main mounting hole 211 of assembly vehicle one side automobile body on the main base plate, be equipped with the vice mounting hole 212 of assembly vehicle opposite side automobile body on the vice base plate, main mounting hole 211 is the circular port, vice mounting hole 212 is waist shape hole, in order at the in-process of installing support 20 installation, earlier guarantee the assembly precision of sub vehicle frame 10 and automobile body through the main mounting hole 211 of circular port, and then the vice mounting hole 212 through waist shape hole is in order to offset the tolerance of sub vehicle frame 10 when whole welding (especially the tolerance when mounting hole 211 assembles with sub vehicle frame 10) and the tolerance of automobile body trompil, ensure the smooth installation of sub vehicle frame 10, the assembly degree of difficulty has been reduced.

It is understood that the positions of the main positioning bracket 20a and the auxiliary positioning bracket 20b are not limited to the positions shown in fig. 2, and the positions may be reversed to ensure that the circular main mounting hole 211 of the main positioning bracket 20a is mounted first and the waist-shaped auxiliary mounting hole 212 of the auxiliary positioning bracket 20b is mounted later to ensure that the subframe 10 is assembled smoothly.

The utility model also relates to a car, including above sub vehicle frame tubular beam structure and with the automobile body of sub vehicle frame tubular beam structure assembly.

With regard to the specific structure and content of the sub-frame 10 and the positioning bracket 20 on the sub-frame tubular beam structure and the components of the body of the automobile, reference may be made to the prior art, and details thereof are not described herein.

To sum up, the utility model provides an auxiliary frame tubular beams structure utilizes arranging the trend of crossbeam and longeron to through selecting both reasonable tailor-welded positions, with the overall structure of at utmost optimization tubular beams, on the basis of the intensity of guaranteeing the assembly, greatly promote the structure utilization ratio of tubular beams (crossbeam and longeron).

The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, but the present invention is not limited to the above embodiments, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments of equivalent changes within the technical scope of the present invention without departing from the technical scope of the present invention, but any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the technical scope of the present invention.

Claims (6)

1. The auxiliary frame tubular beam structure is characterized by comprising an auxiliary frame (10) assembled with an automobile body, wherein the auxiliary frame (10) comprises longitudinal beams (11) positioned on two sides of a vehicle and transverse beams (12) transversely arranged on the longitudinal beams (11), and the height of the front end of each longitudinal beam (11) is lower than that of the rear end of each longitudinal beam (11).

2. The tubular sub-frame beam structure according to claim 1, wherein the longitudinal beam (11) is of an "S" shape as a whole.

3. The sub-frame tubular beam structure according to claim 1, wherein the cross member (12) includes a front cross member (12a) and a rear cross member (12b), the front cross member (12a) being provided transversely to a front end of the side member (11), and the rear cross member (12b) being provided transversely between a middle rear portion of the side member (11).

4. The sub-frame tubular beam structure according to claim 3, wherein both end portions of the front cross member (12a) are higher than a middle portion thereof and have a "concave" shape, and the side member (11) is fixed to a bent portion of the front cross member (12 a).

5. The tubular subframe beam structure according to claim 1, further comprising a positioning bracket (20) provided on the subframe (10), wherein the positioning bracket (20) is fixedly connected to a rear end portion of the longitudinal beam (11).

6. An automobile, characterized by comprising the sub-frame tubular beam structure according to any one of claims 1 to 5.

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