CN204279627U - A kind of full frame fore sub frame connection structure - Google Patents

Abstract

The utility model discloses a full-frame front sub-frame connection structure, which comprises a sub-frame and a front half frame, the sub-frame includes a left longitudinal beam and a right longitudinal beam, and the front half frame includes a front left longitudinal beam, a front The right longitudinal beam and the front crossbeam, the front crossbeam connects the front ends of the front left longitudinal beam and the front right longitudinal beam, and is characterized in that it also includes a connecting piece symmetrically arranged at the front ends of the left longitudinal beam and the right longitudinal beam, and the connecting piece includes The connecting column and the front side ear arranged on the outside of the connecting column, the front left longitudinal beam and the front right longitudinal beam are respectively hinged with the connecting column of the front end connector of the left longitudinal beam and the right longitudinal beam, and the ends of the left longitudinal beam and the right longitudinal beam The parts respectively extend outward to form rear ears, and the rear ears are connected with corresponding front ears. The utility model is simple in structure, easy to use, ensures the connection strength between the sub-frame and the front half frame, and has good versatility.

Description

A full-frame front sub-frame connection structure

technical field

The utility model relates to vehicle components, in particular to a full-frame front auxiliary frame connection structure.

Background technique

For a car with a load-bearing body, the front sub-frame is the base of the car chassis and is an independent structural member in the entire car system. Many parts and assemblies on the car chassis such as triangle arms, stabilizer bars, and steering gears , engine anti-torsion suspension and various wiring harnesses, etc., all need to be fixed by the front sub-frame. Therefore, the front subframe is an important subject in the design of the automobile chassis.

However, it is difficult for the existing front sub-frames of automobiles to take into account the generalization requirements of the platforms of small cars and large cars. Due to space constraints, the half-frame front sub-frames used in A0 and A1 small Such reasons are difficult to generalize to large vehicles. At present, various OEMs are launching large-scale vehicles such as SUVs on the existing platforms. The front sub-frame of large-scale vehicles needs to be equipped with a stronger suspension to support a more powerful engine. Therefore, full-frame front sub-frames are often used. The generalization of the sub-frame is particularly important.

Contents of the invention

The purpose of this utility model is to solve the deficiency of the above-mentioned background technology, and provide a full-frame front sub-frame connection structure.

The technical scheme of the utility model is: a full-frame front sub-frame connection structure, including a sub-frame and a front half frame, the sub-frame includes a left longitudinal beam and a right longitudinal beam, and the front half frame includes a front left longitudinal beam The beam, the front right longitudinal beam and the front cross beam, the front cross beam connects the front left longitudinal beam and the front right longitudinal beam. The connecting piece includes a connecting column and a front ear arranged on the outside of the connecting column,

The front left longitudinal beam and the front right longitudinal beam are respectively hinged to the connecting columns of the front end connectors of the left longitudinal beam and the right longitudinal beam, and the ends of the left longitudinal beam and the right longitudinal beam respectively extend outward to form rear ears, The lateral ears are connected to the corresponding front lateral ears.

Preferably, the cross-sections of the front left longitudinal beam and the front right longitudinal beam are both U-shaped with openings transversely outward.

Further, the connecting columns of the front end connectors of the left longitudinal beam and the right longitudinal beam are respectively arranged in the openings of the front left longitudinal beam and the front right longitudinal beam.

Preferably, the connecting column includes a support piece and a first ear and a second ear that are vertically connected to the upper and lower ends of the support, and the support piece extends outward to form a front ear, and the first and second ears are provided with coaxial screws. hole.

Further, a sleeve coaxial with the coaxial screw hole is provided between the first lug and the second lug.

Further, the ends of the rear left side beam and the rear right side beam are respectively attached and connected to the support pieces on the same side.

Further, the upper and lower ends of the front left longitudinal beam and the front right longitudinal beam are provided with screw holes corresponding to the coaxial screw holes on the first lug and the second lug.

Further, the bolt passes through the screw holes at the upper and lower ends of the front left longitudinal beam and the coaxial screw holes on the first lug and the second lug on the same side to hinge the front left longitudinal beam to the connecting piece on the same side.

Furthermore, the bolt passes through the screw holes at the upper and lower ends of the front right longitudinal beam and the coaxial screw holes on the first and second lugs on the same side to hinge the front right longitudinal beam to the connecting piece on the same side.

In the utility model, the connectors are symmetrically arranged at the front ends of the rear left longitudinal beam and the rear right longitudinal beam, the connecting column of the left connector is hinged with the front left longitudinal beam, the front ear is connected with the rear ear of the rear left longitudinal beam, and the right The connecting column of the connector is hinged with the front right longitudinal beam, and the front ear is connected with the rear ear of the rear right longitudinal beam, so that the front half frame is fixed on the subframe to form a full frame subframe. When the full-frame sub-frame needs to be lengthened, a larger front half frame can be used to connect to the sub-frame without improving the sub-frame.

The utility model is simple in structure, easy to use, ensures the connection strength between the sub-frame and the front half frame, and has good versatility.

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is a schematic diagram of explosion of the utility model

Figure 3 is a schematic diagram of the connector structure

Figure 4 is a schematic diagram of the use state of the connector

Among them: 1. Sub-frame 2. Front half frame 3. Connector 11. Rear left longitudinal beam 12. Rear right longitudinal beam 13. Rear side ear 21. Front left longitudinal beam 22. Front right longitudinal beam 23. Crossbeam 24. Screw holes 31. Connecting column 32. Front ear 301. Support piece 302. First ear protector 303. Second ear protector 304. Coaxial screw hole 305. Sleeve.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figures 1-4, the subframe 1 includes a rear left longitudinal beam 11 and a rear right longitudinal beam 12, and the front half frame 2 includes a front left longitudinal beam 21, a front right longitudinal beam 22 and a front crossbeam 23, and the front crossbeam 23 connects the front The front ends of the left longitudinal beam 21 and the front right longitudinal beam 22, the cross sections of the front left longitudinal beam 21 and the front right longitudinal beam 22 are all U-shaped with openings transversely outward, and the connectors 3 are arranged symmetrically on the rear left longitudinal beam 11 and the rear right longitudinal beam 11. Stringer 12 ends.

The connector 3 includes a connecting column 31 and a front side ear 32. The connecting column 31 includes a support piece 301 and a first ear protector 302 and a second ear protector 303 vertically connected to the upper and lower ends of the support piece 301. The support piece 301, the first ear protector 302 and the second ear protector 303 also forms a U-shaped structure with an opening outward. The support piece 301 extends outward to form the front ear 32, the first ear 302 and the second ear 303 are provided with coaxial screw holes 304, and the first ear 302 and the second ear 303 are provided with coaxial screw holes 304. The sleeve 305 strengthens the connection strength of the connecting piece 3 .

Screw holes 24 corresponding to the coaxial screw holes 304 are provided at the upper and lower ends of the front left longitudinal beam 21 and the front right longitudinal beam 22 . The connecting columns 31 of the left and right side connecting parts 3 are respectively arranged in the openings of the front left longitudinal beam 21 and the front right longitudinal beam 22 .

The ends of the rear left longitudinal beam 11 and the rear right longitudinal beam 12 are bonded and welded to the outer wall of the support plate 301 on the same side respectively, and the ends of the rear left longitudinal beam 11 and the rear right longitudinal beam 12 respectively extend outward to form rear ears 13, and the rear ears 13 is connected with the opening plug welding on the front side ear 32 of the corresponding connector 3.

Thread the bolts through the upper and lower screw holes 24 of the front left longitudinal beam 21 and the coaxial screw holes 304 on the first lug 302 and the second lug 303 on the same side to hinge the front left longitudinal beam 21 with the connector 3 on the same side. The bolts pass through the screw holes 24 at the upper and lower ends of the front right longitudinal beam 22 and the coaxial screw holes 304 on the first lug 302 and the second lug 303 on the same side to hinge the front right longitudinal beam 22 with the connector 3 on the same side. In this embodiment, the connectors 3 are symmetrically welded to the ends of the rear left longitudinal beam 11 and the rear right longitudinal beam 12 of the subframe 1, and the front left longitudinal beam 21 and the front right longitudinal beam 22 of the front half frame 2 are connected to the corresponding connectors. 3 hinges, when the full-frame sub-frame needs to be lengthened, the front half frame with a larger size can be connected to the sub-frame, and there is no need to improve the sub-frame. The connecting piece 3 is simple in structure, takes up little space, and its strength fully meets the requirements of use, so that the connection between the front half frame 2 and the subframe 1 is flexible, and can meet the generalization requirements of the subframe.

The above is only a specific embodiment of the present utility model. It should be pointed out that any changes or replacements that can be easily imagined by those skilled in the art within the technical scope disclosed in the present utility model should be covered by the present utility model. within the scope of protection.

Claims (9)

1. a full frame fore sub frame connection structure, comprise subframe (1) and first half frame (2), described subframe (1) comprises rear left longeron (11) and rear right vertical beam (12), described first half frame (2) comprises front left longeron (21), front right vertical beam (22) and front cross rail (23), described front cross rail (23) connects front left longeron (21) and front right vertical beam (22) front end, it is characterized in that, also comprise the attaching parts (3) being symmetricly set on rear left longeron (11) and rear right vertical beam (12) end, described attaching parts (3) comprises joint pin (31) and is arranged on the front side ear (32) in joint pin (31) outside,

Described front left longeron (21), front right vertical beam (22) are hinged with the joint pin (31) of rear left longeron (11) and rear right vertical beam (12) end coupling (3) respectively, described rear left longeron (11) and rear right vertical beam (12) end extend to form rear side ear (13) respectively laterally, and described rear side ear (13) connects with corresponding front side ear (32).

2. frame fore sub frame connection structure as claimed in claim 1 complete, is characterized in that, it is laterally outside U-shaped that the cross-sectional plane of described front left longeron (21), front right vertical beam (22) is opening.

3. full frame fore sub frame connection structure as claimed in claim 2, it is characterized in that, the joint pin (31) of described rear left longeron (11) and rear right vertical beam (12) end coupling (3) is located at front left longeron (21) respectively with in front right vertical beam (22) opening.

4. full frame fore sub frame connection structure as claimed in claim 1, it is characterized in that, described joint pin (31) comprises supporting blade (301) and is vertically connected on the first earflap (302) and second earflap (303) of supporting blade (301) upper and lower side, described supporting blade (301) stretches out and forms front side ear (32), and described first earflap (302) and the second earflap (303) are provided with coaxial screw (304).

5. full frame fore sub frame connection structure as claimed in claim 4, is characterized in that, be provided with the sleeve (305) coaxial with coaxial screw (304) between described first earflap (302) and the second earflap (303).

6. full frame fore sub frame connection structure as claimed in claim 4, it is characterized in that, described rear left longeron (11) and rear right vertical beam (12) end are fitted and connected with the supporting blade (301) of homonymy respectively.

7. full frame fore sub frame connection structure as claimed in claim 4, it is characterized in that, described front left longeron (21), front right vertical beam (22) upper and lower side are equipped with the screw (24) corresponding with coaxial screw (304).

8. full frame fore sub frame connection structure as claimed in claim 7, it is characterized in that, bolt is hinged with the attaching parts (3) of homonymy by front left longeron (21) through the coaxial screw (304) on front left longeron (21) upper and lower side screw (24) and homonymy first earflap (302) and the second earflap (303).

9. full frame fore sub frame connection structure as claimed in claim 7, it is characterized in that, bolt is hinged with the attaching parts (3) of homonymy by front right vertical beam (22) through the coaxial screw (304) on front right vertical beam (22) upper and lower side screw (24) and homonymy first earflap (302) and the second earflap (303).