CN207790241U

CN207790241U - Spring holder and rear axle including it

Info

Publication number: CN207790241U
Application number: CN201820168069.9U
Authority: CN
Inventors: 岑振轩; 黄跃均
Original assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Current assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Priority date: 2018-01-31
Filing date: 2018-01-31
Publication date: 2018-08-31
Anticipated expiration: 2028-01-31

Abstract

The utility model provides a kind of spring holder and the rear axle including it, the transitional region for matching connection on the spring holder with crossbeam uses the ladder transition structure of lamination, one ladder is set at the mounting surface higher than the spring holder, the both ends of the ladder are smooth rounded corner, and the size of the rounded corner is more than four times of the thickness of part plate.The rear axle includes crossbeam, left trailing arm, right trailing arm and two spring holders as described above, the left trailing arm and the right trailing arm are mounted on the both ends of the crossbeam, the spring holder is separately mounted between the left trailing arm and the crossbeam and between the right trailing arm and the crossbeam.The utility model can effectively prevent the material expense of former punching course, and do not change punching press and feed intake size, reduce cost, reduce risk.

Description

Spring holder and rear axle including it

Technical field

The utility model is related to automotive field, more particularly to a kind of spring holder and the rear axle including it.

Background technology

In automotive field, rear axle is the critical component in automobile chassis, needs carrying each in vehicle traveling process The power in a direction.Rigidity, intensity, fatigue life of rear axle etc. play vital work to the safety of vehicle and comfort With.

Fig. 1 is the structural schematic diagram of rear axle in the prior art.As shown in Figure 1, rear axle 10 is mainly by crossbeam 11, left trailing arm 12, the compositions such as right trailing arm 13, wheel stand 14, bushing 15, left spring disk 16, right spring holder 17, flanged plate 18.Left spring disk 16, right spring holder 17 is mainly connect by welding manner with crossbeam 11 and left trailing arm 12, right trailing arm 13, to change rear axle 10 Rigidity and fatigue behaviour.

Meanwhile spring holder is additionally operable to installation rear coil springs, bears the vertical alternating load of vehicle.Vehicle travel process In, for spring holder also subject to lateral and torsion alternating load, operating mode is complicated, is easy failure.

Fig. 2 is the structural schematic diagram of spring holder in the prior art.As shown in Fig. 2, the shortcomings that existing 17 structure of spring holder, is： Face A is matched with crossbeam is excessively plane transition.The stress distribution of this structure is uneven, and local stress is very high, and fatiguability is opened Failure is split, bearing capacity is finally lost, influences driving safety.

Utility model content

The technical problems to be solved in the utility model is to overcome the easy fatigue cracking failure of spring holder in the prior art Defect, a kind of spring holder and the rear axle including it are provided.

The utility model is to solve above-mentioned technical problem by following technical proposals：

A kind of spring holder, feature are, match the transitional region of connection on the spring holder with crossbeam using lamination A ladder is arranged in ladder transition structure at the mounting surface higher than the spring holder, and the both ends of the ladder are smooth rounding Angle, the size of the rounded corner are more than four times of the thickness of part plate.

One embodiment according to the present utility model, the ladder are positioned above the mounting surface height of the spring holder At 33.2mm.

The thickness of one embodiment according to the present utility model, the part plate is 3.5mm.

The radius of one embodiment according to the present utility model, the rounded corner of one end of the ladder is 18mm.

The radius of one embodiment according to the present utility model, the rounded corner of the other end of the ladder is 16.5mm.

One embodiment according to the present utility model, being smaller than between the rounding corner edge at the both ends of the ladder In 5mm.

The invention also discloses a kind of rear axle, feature is, the rear axle includes crossbeam, left trailing arm, right trailing arm With two spring holders as described above, the left trailing arm and the right trailing arm are mounted on the both ends of the crossbeam, the spring holder It is separately mounted between the left trailing arm and the crossbeam and between the right trailing arm and the crossbeam.

The positive effect of the utility model is：

The transitional region that the spring holder of the utility model matches face with crossbeam is designed using lamination ladder excessive structural, simply It is applicable in, while being easy to punch forming, the phenomenon that punching press is thinned and is easy to control, no cracking.Former punching press can effectively be prevented in this way The material of process takes, and does not change punching press and feed intake size, reduces cost, reduces risk.

Description of the drawings

The above and other feature of the utility model, property and advantage will be by with reference to the accompanying drawings and examples It describing and becomes apparent, identical reference numeral always shows identical feature in the accompanying drawings, wherein：

Fig. 1 is the structural schematic diagram of rear axle in the prior art.

Fig. 2 is the structural schematic diagram of spring holder in the prior art.

Fig. 3 is the structural schematic diagram of the utility model spring holder.

Specific implementation mode

For the above objects, features, and advantages of the utility model can be clearer and more comprehensible, below in conjunction with attached drawing to this practicality Novel specific implementation mode elaborates.

The embodiments of the present invention are described with detailed reference to attached drawing now.Now with detailed reference to the excellent of the utility model Embodiment is selected, its example is shown in the drawings.In the case of any possible, will be come in all the appended drawings using identical label Indicate same or analogous part.

In addition, although the term used in the utility model is selected from public term, this reality May be that applicant judges that detailed meanings exist come selection by his or her with some terms mentioned in novel specification Illustrate in the relevant portion of description herein.

In addition, it is desirable that not only by used actual terms, and be also to the meaning contained by each term To understand the utility model.

Fig. 3 is the structural schematic diagram of the utility model spring holder.As shown in figure 3, the utility model discloses a kind of springs Disk 20, wherein the transitional region B for matching connection on spring holder 20 with crossbeam uses the ladder transition structure of lamination, higher than bullet One ladder is set at the mounting surface of spring disk 20, and the both ends of the ladder are smooth rounded corner, and the size of the rounded corner is more than Four times of the thickness of part plate.

Preferably, the ladder is positioned above at the mounting surface height 33.2mm of spring holder 20.The thickness of the part plate Degree is 3.5mm.

It is designed using this lamination hierarchic structure, under the premise of meeting rear overhang spring installation function, torsion-beam after being promoted Lateral rigidity reduces the excessively curved vehicle roll angle of vehicle.

Further, the radius of the rounded corner R1 of one end of the ladder is 18mm.The rounding of the other end of the ladder The radius of angle R2 is 16.5mm.Particularly, being smaller than equal to 5mm between the rounding corner edge at the both ends of the ladder.

Using this design, more stress is made to be uniformly distributed, local maxima stress is reduced to 252Mpa by 367Mpa, reduces About 31%.By the bench test of different batches of product, test life is more than projected life, meets design and use requirement.

Meanwhile the invention also discloses a kind of rear axles comprising crossbeam, left trailing arm, right trailing arm and two institutes as above The spring holder 20 stated, the left trailing arm and the right trailing arm are mounted on the both ends of the crossbeam, and the spring holder is separately mounted to Between the left trailing arm and the crossbeam and between the right trailing arm and the crossbeam.

In conclusion the transitional region that the spring holder of the utility model matches face with crossbeam uses lamination ladder excessive structural The phenomenon that design is simply applicable in, while being easy to punch forming, and punching press is thinned and is easy to control, no cracking.It can effectively shut out in this way The material of original punching course absolutely takes, and does not change punching press and feed intake size, reduces cost, reduces risk.

Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that These are merely examples, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art Member can make these embodiments numerous variations or repair under the premise of without departing substantially from the principles of the present invention and essence Change, but these change and modification each fall within the scope of protection of the utility model.

Claims

1. a kind of spring holder, which is characterized in that the transitional region for matching connection on the spring holder with crossbeam uses the rank of lamination A ladder is arranged in terraced transition structure at the mounting surface higher than the spring holder, and the both ends of the ladder are smooth rounded corner, The size of the rounded corner is more than four times of the thickness of part plate.

2. spring holder as described in claim 1, which is characterized in that the ladder is positioned above the mounting surface of the spring holder At height 33.2mm.

3. spring holder as described in claim 1, which is characterized in that the thickness of the part plate is 3.5mm.

4. spring holder as described in claim 1, which is characterized in that the radius of the rounded corner of one end of the ladder is 18mm.

5. spring holder as described in claim 1, which is characterized in that the radius of the rounded corner of the other end of the ladder is 16.5mm。

6. spring holder as described in claim 1, which is characterized in that the spacing between the rounding corner edge at the both ends of the ladder Less than or equal to 5mm.

7. a kind of rear axle, which is characterized in that the rear axle includes that crossbeam, left trailing arm, right trailing arm and two such as claim 1-6 appoint Spring holder described in meaning one, the left trailing arm and the right trailing arm are mounted on the both ends of the crossbeam, the spring holder difference Between the left trailing arm and the crossbeam and between the right trailing arm and the crossbeam.