CN107571708A - Torsion beam, suspension and automobile - Google Patents
Torsion beam, suspension and automobile Download PDFInfo
- Publication number
- CN107571708A CN107571708A CN201610518828.5A CN201610518828A CN107571708A CN 107571708 A CN107571708 A CN 107571708A CN 201610518828 A CN201610518828 A CN 201610518828A CN 107571708 A CN107571708 A CN 107571708A
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- Prior art keywords
- trailing arm
- crossbeam
- torsion beam
- groove
- reinforcing member
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Abstract
A kind of torsion beam, suspension and automobile, the torsion beam includes crossbeam, the first trailing arm and the second trailing arm, the both ends that first trailing arm, second are respectively fixedly disposed at the crossbeam, crossbeam include roof and are fixedly installed on the side wall of roof both sides, and roof, side wall form the cavity structure with opening；Along along the length direction of crossbeam, crossbeam includes Part I, Part II, Part III, and Part II is arranged between Part I, Part III, seamlessly transitted between adjacent two parts；Gradually increase from one end that Part I connects with Part II to the other end of Part I, the width of Part I；Gradually increase from one end that Part III connects with Part II to the other end of Part III, the width of Part III.So as to add the welding region between crossbeam and trailing arm, and then the weld strength of crossbeam and trailing arm is increased, improve the service life of torsion beam.
Description
Technical field
The present invention relates to automobile technical field, and in particular to a kind of torsion beam, suspension and automobile.
Background technology
Torsion girder-like rigid axle suspension, arm-type rigid axle suspension is also known as pulled, is one kind of rear overhang rack type of device,
It is common in the vehicle of front engine front wheel driving；Automotive wheel is mounted in the two of a torsion beam by torsion girder-like rigid axle suspension
End, balances the bob of left and right wheelses by a torsion beam, to reduce rocking for vehicle, keeps the steady of vehicle.
Torsion girder-like rigid axle suspension has torsion beam, and torsion beam includes crossbeam, the first trailing arm and the second trailing arm, and first is vertical
Arm, the second trailing arm are separately positioned on the both sides of crossbeam, are provided with left wheel installation component on the first trailing arm, can connect left back car
Take turns, be provided with right wheel installation component on the second trailing arm, right rear wheel can be connected；The both ends of crossbeam respectively with the first trailing arm,
Two trailing arms are fixedly connected.This suspended structure is simple, and the space at the wheel of the left and right sides is less；Less cost can be used
Reach preferable effect.
During automobile use, the situations such as pavement roughness, turning driving can be run into, bounce occurs in automotive wheel,
The bounce of single wheel can be transferred to the wheel of opposite side by torsion beam；Therefore, in the process of moving, torsion beam is frequent for automobile
Can be by larger stress.
Crossbeam in traditional torsion beam often uses U-shaped or V-arrangement crossbeam, and on along its length, crossbeam has phase
Same cross sectional shape and size；Therefore, in actual driving process, the stress suffered by torsion beam can not effectively be distributed automobile
On whole crossbeam, crossbeam and the first trailing arm, the welding region of the second trailing arm are often focused on；Welding region easily produces fatigue
Crackle, ride safety of automobile is influenceed, reduce the service life of torsion beam.
The content of the invention
The present invention solves the problems, such as, in vehicle traveling process, stress concentration suffered by torsion beam is in crossbeam and the
The welding region of one trailing arm, the second trailing arm, fatigue crack is easily produced, reduce torsion beam service life.
To solve the above problems, the present invention provides a kind of torsion beam, including crossbeam, the first trailing arm and the second trailing arm, it is described
First trailing arm, the second trailing arm are respectively fixedly disposed at the both ends of the crossbeam, and the crossbeam is included along the length side of the crossbeam
To the Part I, Part II, Part III set gradually, seamlessly transitted between adjacent two parts, first trailing arm is set
Put and be arranged on one end of Part III in one end of Part I, second trailing arm；From the Part I and Part II
To the other end of the Part I, the width of the Part I gradually increases for the one end to connect；From the Part III
To the other end of the Part III, the width of the Part III gradually increases for the one end to connect with Part II.
Optionally, the crossbeam includes roof and is fixedly installed on the side wall of roof both sides, and the roof, side wall form tool
There is the cavity structure of opening；On the roof of the Part I, be provided with the first groove, the first slot opening direction with
The opening direction of the cavity structure is opposite；On the roof of the Part III, the second groove, second groove are provided with
Opening direction it is opposite with the opening direction of the cavity structure.
Optionally, connect along the length direction, first groove through the Part I with first longeron
One end, second groove runs through one end for connecting with second longeron of the Part III.
Optionally, from one end that the Part I connects with Part II to the other end of the Part I, institute
The width for stating the first groove gradually increases；It is another from one end that the Part III connects with Part II to the Part III
Outer one end, the width of second groove gradually increase.
Optionally, in two side walls of the Part II, the first flange is respectively arranged with, first flange is used for
Strengthen the rigidity of the Part II.
Optionally, the Part I and the first trailing arm weld, and the Part III and the second trailing arm weld.
Optionally, the reinforcing member of torsion beam first, the second reinforcing member, first reinforcing member are fixedly connected with the Part I
With the first trailing arm；Second reinforcing member is fixedly connected with the Part III and the second trailing arm.
Optionally, first reinforcing member, the second reinforcing member are arranged in the cavity structure, first reinforcing member point
Do not welded with the Part I, the first trailing arm；Second reinforcing member welds with the Part III, the second trailing arm respectively.
In order to solve the above technical problems, the present invention also provides a kind of suspension, including above-described torsion beam.
In order to solve the above technical problems, the present invention also provides a kind of automobile, including above-described suspension.
Compared with prior art, technical scheme has advantages below：
The torsion beam of the technical program, including crossbeam and the first trailing arm, the second trailing arm that are arranged on crossbeam both ends, make crossbeam
Intermediate region to the both ends of crossbeam, the width of crossbeam gradually increases.So as to add the welding region between crossbeam and trailing arm,
And then increase the weld strength of crossbeam and trailing arm.Because crossbeam intermediate region width is relatively small, answering suffered by torsion beam
Power is capable of the intermediate region for being dispersed to crossbeam of part, avoids stress concentration at crossbeam and the first trailing arm, the welding of the second trailing arm
Region, so as to improve the service life of torsion beam.
Further, the torsion beam also includes the first reinforcing member, the second reinforcing member, and the first reinforcer is fixedly connected with first
Trailing arm and crossbeam, the second reinforcer are fixedly connected with the second trailing arm and crossbeam.The further connection for increasing torsion beam and trailing arm
Intensity, join domain is avoided to produce fatigue crack, so as to improve the service life of torsion beam.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of specific embodiment of the invention torsion beam；
Fig. 2 is the top view of specific embodiment of the invention torsion beam；
Fig. 3 is the upward view of specific embodiment of the invention torsion beam；
Fig. 4 is the dimensional structure diagram of specific embodiment of the invention crossbeam；
Fig. 5 is the top view of specific embodiment of the invention crossbeam；
Fig. 6 is the front view of specific embodiment of the invention crossbeam；
Fig. 7 is specific embodiment of the invention crossbeam and the partial enlarged drawing of the first trailing arm junction.
Embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Referring to figs. 1 to Fig. 6, torsion beam 100, including crossbeam 10, the first trailing arm 20 and the second trailing arm 30, the first trailing arm 20,
Second trailing arm 30 is respectively fixedly disposed at the both ends of crossbeam 10, and crossbeam 10 includes roof 11 and is fixedly installed on the side of roof both sides
Wall 12, roof 11, side wall 12 form the cavity structure 13 with opening.
Along along the length direction of crossbeam 10, crossbeam 10 includes Part I 10a, Part II 10b, Part III 10c, the
Two part 10b are arranged between Part I 10a, Part III 10c, are seamlessly transitted between adjacent two parts, the first trailing arm 20
Part I 10a one end is arranged on, the second trailing arm 30 is arranged on Part III 10c one end.
Other ends of the Part I 10a with one end that Part II 20b connects to Part I 10a, Part I 10a
Width gradually increase, other ends of the Part III 10c with one end that Part II 10b connects to Part III 10c, the 3rd
Part 10c width gradually increases.
The effect that crossbeam 10 is designed as to its direction of both ends width gradually increasing from intermediate region is：Compared to existing
There is the crossbeam of same widths in each position, crossbeam 10 of the invention increases the width of two ends, so as to add
Welding region between the trailing arm 20 of crossbeam 10 and first, the second trailing arm 30, increase the trailing arm 20 of crossbeam 10 and first, the second trailing arm
Weld strength between 30.During vehicle actual travel, though the stress suffered by torsion beam 100 concentrate on crossbeam 10 with
Welding region between first trailing arm 20, the second trailing arm 30, welding region are not allowed to be also easy to produce fatigue crack yet, reduce torsion beam
100 service lifes.
In the present embodiment, in order that the stress suffered by torsion beam 100, which can compare, is evenly distributed in whole piece crossbeam 10
On, seamlessly transitted between Part I 10a, Part II 10b, Part III 10c, Part I 10a, Part III 10c are wide
It is also smooth to spend the process gradually increased, i.e., in the absence of on some section, the width of crossbeam 10 produces mutation, causes stress collection
In.
The width of the intermediate region of crossbeam 10 is less than the width at the both ends of crossbeam 10, thus the stress energy suffered by torsion beam 100
Enough parts are dispersed to the intermediate region of crossbeam 10, stress can be avoided all to concentrate on the trailing arm 20, second of crossbeam 10 and first vertical
The welding region of arm 20, so as to improve the service life of torsion beam 100.When in stress distribution to crossbeam 10, crossbeam 10 it is curved
Song deformation can extenuate the vibration that room is driven because of caused by wheel hop, improve riding comfort.
Reference picture 4, Fig. 5, on Part I 10a roof, it is provided with the first groove 11a, the first groove 11a openings
To opposite with the opening direction of cavity structure 13；On Part III 10c roof, the second groove 11c, the second groove are provided with
11c opening directions it is opposite with the opening direction of the cavity structure 13.
First groove 11a, the second groove 11c effect are：Strengthen Part I 10a, Part III 10c rigidity,
So that during automobile enforcement, Part I 10a, Part III 10c are not susceptible to deform；First groove 11a is equivalent to
A part of 10a reinforcement, reinforcements of the second groove 11c equivalent to Part III 10c.
First groove 11a, the second groove 11c opening direction are opposite with the opening direction of cavity structure 13, it is thus possible to
Reduce the space shared by crossbeam 10.In other embodiments, the first groove, the second groove opening direction can also be with cavity
The opening direction of structure is identical.
In the present embodiment, along the length direction of crossbeam 10, the first groove 11a is extended to through Part I 10a and first
One end that longeron 20a connects, the second groove 10c are extended to through one end that Part III 10c connects with the second longeron 20.
Other end from Part I 10a with one end that Part II 10b connects to Part I 10a, the first groove
11a width gradually increases；From Part III 10c with one end that Part II 10b connects to Part III 10c other one
End, the second groove 11c width gradually increase.
First groove 11a, the second groove 11c extend to two ends of crossbeam 10, on the one hand, can further increase horizontal stroke
Weld length between the trailing arm 20 of beam 10 and first, the second trailing arm 30；On the other hand, the end region of crossbeam 10 can be increased
Rigidity, the end region of crossbeam 10 is unlikely to deform, ensure the trailing arm 20 of crossbeam 10 and first, the second trailing arm 30 welding not by
Influence.
Reference picture 5, in Part II 10b two side walls, the first flange 12b is respectively arranged with, the first flange 12b's
Effect is the rigidity for strengthening Part II 10b.
Because Part II 10b width is less than Part I 10a, Part III 10c width, with respect to Part I
10a, Part III 10c, Part II 10b rigidity is smaller, and in vehicle traveling process, Part II 10b can produce bigger
Deformation.In order to make up this defect, the first flange 12b is set in Part II 10b two side walls.
Reference picture 4, on crossbeam 10, lightening hole 14 is additionally provided with, the effect of lightening hole 14 is the weight for mitigating crossbeam 10
Amount, realizes body lightening.In the present embodiment, the position of lightening hole 14 be separately positioned on Part II 10b, the first groove 11a,
On second groove 11c, in other embodiments, on the premise of crossbeam overall performance is ensured, lightening hole can also be arranged on it
His position.
In order to make up the first groove 11a, the shadow for the Stiffness that the lightening hole 14 of the second groove 11c positions is brought
Ring, Part I 10a, Part III 10c two side walls on second flange 12a, 12c be set respectively, the second flange 12a,
The material that the lightening hole 14 that material used in 12c is considerably less than on the first groove 11a, the second groove 11c is saved.
Reference picture 6, be crossbeam 10 the location of front view, Part II 10b higher than Part I 10a, the 3rd
Divide the location of 10c；Its role is to, on the whole improve the shear centre of torsion beam 100 position, so as to lift automobile roll
The height at center.When automobile roll, relative to ground, inside tire tends to inward camber, and outside tire tends to positive flare,
It is unfavorable for the lateral attachment of tire, by lifting the height at automobile roll center, body roll control can be made at less angle
In degree, be advantageous to automobile balance driving.
In the present embodiment, Part I 10a is welded to connect with the first trailing arm 20, and Part III 10c welds with the second trailing arm 30
Connect in succession.
With reference to figure 3, torsion beam 100 also includes the first reinforcing member 40, the second reinforcing member 50, and the first reinforcing member 40 is fixedly connected
Part I 10a and the first trailing arm 20；Second reinforcing member 50 is fixedly connected with Part III 10c and the second trailing arm 50.
It is this present embodiment crossbeam and the partial enlarged drawing of the first trailing arm junction with reference to figure 7.First reinforcing member 40 is set
In cavity structure 13, the first reinforcing member 40 is welded and fixed with Part I 10a, the first trailing arm 20 respectively；Likewise, second adds
Firmware 50 is also disposed in cavity structure 13, and the second reinforcing member 50 is welded and fixed with Part III 10c, the second trailing arm 50 respectively.
In the present embodiment, torsion beam 100 also includes damper bracket 21,31, and it is vertical to be separately positioned on the first trailing arm 20, second
On arm 30, for mounting dampers；Spring support 22,32, the first trailing arm 20 is separately positioned on, on the second trailing arm 30, for pacifying
Fill shock-absorbing spring；Hub bracket 23,33, the first trailing arm 20 is separately positioned on, on the second trailing arm 30, for wheel hub mounting；
Rubber bushing 24,34, the first trailing arm 20 is separately positioned on, on the second trailing arm 30, for connecting body of a motor car.
The present invention also provides a kind of suspension, including above-described torsion beam.
The present invention also provides a kind of automobile, including above-described suspension.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (10)
1. a kind of torsion beam, including crossbeam, the first trailing arm and the second trailing arm, fixation is set respectively for first trailing arm, the second trailing arm
Put at the both ends of the crossbeam, it is characterised in that
The crossbeam includes Part I, Part II, the Part III set gradually along the length direction of the crossbeam, adjacent
Seamlessly transitted between two parts, first trailing arm is fixedly installed on one end of Part I, the second trailing arm fixed setting
In one end of Part III；
From one end that the Part I connects with Part II to the other end of the Part I, the Part I
Width gradually increases；
From one end that the Part III connects with Part II to the other end of the Part III, the Part III
Width gradually increases.
2. torsion beam as claimed in claim 1, it is characterised in that the crossbeam includes roof and is fixedly installed on roof both sides
Side wall, the roof, side wall formed with opening cavity structure；
On the roof of the Part I, the first groove, the first slot opening direction and the cavity structure are provided with
Opening direction it is opposite；
On the roof of the Part III, the second groove, the opening direction of second groove and the cavity knot are provided with
The opening direction of structure is opposite.
3. torsion beam as claimed in claim 2, it is characterised in that along the length direction, first groove is through described
One end that Part I connects with first longeron, second groove run through the Part III and the second longeron phase
The one end connect.
4. torsion beam as claimed in claim 3, it is characterised in that from one end that the Part I connects with Part II to
The other end of the Part I, the width of first groove gradually increase；
From one end that the Part III connects with Part II to the other end of the Part III, second groove
Width gradually increases.
5. torsion beam as claimed in claim 1, it is characterised in that in two side walls of the Part II, set respectively
There is the first flange, first flange is used for the rigidity for strengthening the Part II.
6. torsion beam as claimed in claim 1, it is characterised in that the Part I and the first trailing arm weld, and the described 3rd
Welded with the second trailing arm part.
7. torsion beam as claimed in claim 1, it is characterised in that also including the first reinforcing member, the second reinforcing member, described first
Reinforcing member is fixedly connected with the Part I and the first trailing arm；Second reinforcing member is fixedly connected with the Part III and second
Trailing arm.
8. torsion beam as claimed in claim 7, it is characterised in that first reinforcing member, the second reinforcing member are arranged on described
In cavity structure, first reinforcing member welds with the Part I, the first trailing arm respectively；Second reinforcing member respectively with
The Part III, the welding of the second trailing arm.
9. a kind of suspension, including the torsion beam described in claim any one of 1-8.
10. a kind of automobile, including the suspension described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518828.5A CN107571708A (en) | 2016-07-04 | 2016-07-04 | Torsion beam, suspension and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518828.5A CN107571708A (en) | 2016-07-04 | 2016-07-04 | Torsion beam, suspension and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107571708A true CN107571708A (en) | 2018-01-12 |
Family
ID=61049171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610518828.5A Pending CN107571708A (en) | 2016-07-04 | 2016-07-04 | Torsion beam, suspension and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107571708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214284A (en) * | 2021-12-17 | 2022-10-21 | 广州汽车集团股份有限公司 | Torsion beam type suspension structure and manufacturing method thereof |
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| CN115214284B (en) * | 2021-12-17 | 2024-03-26 | 广州汽车集团股份有限公司 | Torsion beam type suspension structure and manufacturing method thereof |
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Application publication date: 20180112 |