CN202923326U

CN202923326U - Automobile rear torsion crossbeam

Info

Publication number: CN202923326U
Application number: CN 201220430545
Authority: CN
Inventors: 王�忠; 符新; 符星; 苏业丰; 梁栋
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-28
Filing date: 2012-08-28
Publication date: 2013-05-08
Anticipated expiration: 2022-08-28

Abstract

The utility model discloses an automobile rear torsion crossbeam and relates to automobile driving systems. The automobile rear torsion crossbeam comprises a crossbeam body, a corbel assembly, a stabilizer bar, a resonance block and a resonance block position-limit base. The crossbeam body is in an omega shape with an opening facing towards the right, the resonance block is in an opening shape, and the resonance block position-limit base is additionally arranged at an installation position of the resonance block. The crossbeam body is in the omega shape and has the advantages that punch forming is simple and easy, the crossbeam body can be conveniently installed and welded with the corbel assembly, and the shortcomings like deformation can not occur easily. The resonance block is in the opening shape, the resonance block position-limit base is additionally arranged at the rear installation position of the resonance block, and therefore the phenomenon that performance of the rear torsion crossbeam is affected due to the fact that the stabilizer bar twists and drives the resonance block to vibrate in a driving process can be prevented. A fracture zone of a blanking edge of the crossbeam body does not need grinding and polishing in the process of manufacturing, and therefore labor intensity of spot operators and production cost are reduced, performance stability of the rear torsion crossbeam is guaranteed, and the problem that the performance of the rear torsion crossbeam is affected due to qualitative changes of materials of the resonance block under a high temperature effect of an electrophoresis chamber is avoided.

Description

Torsion crossbeam after a kind of automobile

Technical field

The present invention relates to running car system, torsion crossbeam after especially a kind of automobile.

Background technology

Rear torsion crossbeam belongs to running car system parts, is a kind of of automobile rear suspension arrangement type, is mainly bearing automobile rear portion load, the bob of balance left and right rear wheel, to reduce rocking of vehicle, keep vehicle steadily.In car load assembling was arranged, the lining position of rear torsion crossbeam was assemblied on vehicle body, and the drg mounting bracket part of rear torsion crossbeam is installed with rear brake and tire and is connected, and the trailing arm place of rear torsion crossbeam is connecting damping spring.When automobile travelled on road conditions poor road surfaces, rear torsion crossbeam can twist up and down along with the bob of rear wheel action, to huge test is arranged in service life of rear torsion crossbeam.The crossbeam of rear torsion crossbeam is to be " U " shape and side assembly welding with in structure existing, and there is the R limit both sides of crossbeam and trailing arm welding, mainly plays to avoid both sides stress to occur concentrating and cause crossbeam both sides the effect of rupturing to occur.And in actual driving process, because some road conditions is relatively poor, it is excessive that rear torsion crossbeam is done up and down the twisting action, so just often causes rear torsion crossbeam inefficacy.Although by with the sander machine problem that the torsion crossbeam lost efficacy after the operation such as polish on the stamping-out limit of crossbeam can temporarily solve, but so not only can increase labor intensity of operating staff and productive costs, and the stability of polishing quality can't guarantee, production efficiency is also lower, totally all might not cause rear torsion crossbeam to lose efficacy as long as the fault zone on crossbeam two stamping-out limits is removed a little.

Summary of the invention

Be in order to overcome crossbeam because of rear torsion crossbeam the deficiency that " U " shape and other reasons often cause rear torsion crossbeam to lose efficacy, the utility model provides torsion crossbeam after a kind of automobile, after this automobile, the torsion crossbeam can prevent effectively that not only rear torsion crossbeam lost efficacy, and be easy to punch forming and welding, need not to polish on the stamping-out limit of crossbeam, production efficiency is high.

The technical scheme that its technical matters that solves the utility model adopts is: one, will now use the crossbeam of the rear torsion crossbeam in structure by " U " type opening to the right, change " Ω " type (namely having increased crimping on original stamping-out limit) opening into to the right, with the torsional strength of deep beam; The resonance piece that two, will be connected with stabilizer rod with crossbeam is by the opening that changes into of originally remaining silent, and increases a resonance piece limit base below the resonance piece, thus prevent in the driving process stabilizer rod twisting with the vibration of dynamic resonance piece the performance of torsion crossbeam after impact.

The invention has the beneficial effects as follows: one, the crossbeam of rear torsion crossbeam changes " Ω " shape into by " U " shape, has the easy advantage of punch forming, and be difficult for to produce the defective such as distortion; Two, in rear torsion beam assembly assembly welding process, because crossbeam is " Ω " shape, be difficult for producing distortion, be convenient to and trailing arm assembly assembly welding; Three, do not need the fault zone on crossbeam stamping-out limit is carried out sanding and polishing, reduce site operation personnel's labour intensity and productive costs, guarantee the stability of rear torsion crossbeam performance.

Description of drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is three-dimensional model diagram of the present utility model.

Fig. 2 is the birds-eye view of rear torsion crossbeam.

Fig. 3 is the front view of rear torsion crossbeam.

Fig. 4 is the cross sectional drawing of rear torsion crossbeam.

Fig. 5 is resonance piece front view.

Fig. 6 is resonance piece scheme of installation.

Fig. 7 is the scheme of installation of resonance piece limit base.

1. crossbeams in figure, 2. trailing arm assembly, 3. resonance piece, 4. resonance piece limit base, 5. stabilizer rod.

The specific embodiment

In Fig. 1, crossbeam (1) is made through " blanking-flange-moulding-integer-punching " five road stamping procedures by sheet metal, its cross-sectional plane is " Ω " shape, after completing with the welding of trailing arm assembly (2) two ends, " Ω " shape crossbeam not only is difficult for producing distortion, and extremely is convenient to and trailing arm assembly (2) assembly welding.

In Fig. 5, resonance piece (3) is opening-like.

In the embodiment shown in fig. 6, stabilizer rod (5) is welded on rear torsion crossbeam, will be arranged on the stabilizer rod (5) of rear torsion crossbeam by the opening shape resonance piece (3) that rubber is made.

In the embodiment shown in fig. 7, an increase resonance piece limit base (4) below resonance piece (3) prevents stabilizer rod in the driving process (5) thereby twisting band dynamic resonance piece (3) vibrates and the performance of the rear torsion crossbeam of impact.

Claims

1. torsion crossbeam after an automobile, formed by crossbeam, trailing arm assembly, stabilizer rod, resonance piece and resonance piece limit base, it is characterized in that: crossbeam is " Ω " type opening to the right, and the resonance piece is opening-like, is installed in addition with a resonance piece limit base on resonance piece installation site.