CN108909398A - A kind of torsion beam crossbeam, torsion beam assembly and automobile - Google Patents
A kind of torsion beam crossbeam, torsion beam assembly and automobile Download PDFInfo
- Publication number
- CN108909398A CN108909398A CN201810858322.8A CN201810858322A CN108909398A CN 108909398 A CN108909398 A CN 108909398A CN 201810858322 A CN201810858322 A CN 201810858322A CN 108909398 A CN108909398 A CN 108909398A
- Authority
- CN
- China
- Prior art keywords
- torsion beam
- interlude
- cross
- section
- perimeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/051—Trailing arm twist beam axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/81—Shaping
- B60G2206/8102—Shaping by stamping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/81—Shaping
- B60G2206/8103—Shaping by folding or bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/81—Shaping
- B60G2206/811—Shaping by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/8201—Joining by welding
Abstract
The invention discloses a kind of torsion beam crossbeam, torsion beam assembly and automobile, including cross-beam body, the cross-beam body is formed using punching press pipe crimping, and interlude, changeover portion and lap segment are successively divided to both ends from intermediate；The interlude section is U-shaped or V-type, including outer layer and internal layer, is equipped with gap, two layers of junction transition arc transition between the two, and the radius of the transition arc is 1.5 ~ 2.5 times of interlude wall thickness；The lap segment ellipsoidal cross section, circle or rectangular, lap segment perimeter of section are 1.25 ~ 2 times of interlude perimeter of section；The cross sectional shape of the cross-beam body is seamlessly transitted from lap segment to interlude.The torsion beam assembly includes above-mentioned torsion beam crossbeam, and the both ends of the torsion beam crossbeam are connected separately with torsion beam trailing arm.The automobile includes above-mentioned torsion beam assembly.It meets lightweight requirements, and high reliablity is versatile.
Description
Technical field
The present invention relates to auto parts and components, and in particular to a kind of torsion beam crossbeam, torsion beam assembly and automobile.
Background technique
High reliability, lightweight, the low cost of torsion beam of automobile have become the rigid demand in market.The automobile closed of mainstream
Formula torsion beam is formed by seamless steel pipe cold stamping or interior high-pressure and hydraulic.
Cold stamping or the molding torsion beam of interior high-pressure and hydraulic, end size by stamping material expansion rate characteristic because being limited
It makes, than usually less than 1.25 times, end easily produces the length of the steel tube section perimeter before end cross-sectional perimeter and molding after swollen type
Generation type, which is thinned, even to crack, and cannot do more.End cross-sectional perimeter is forced the smaller of design, leads to torsion beam crossbeam and indulges
Arm fusion length is shorter, and reliability reduces；The urgent selection of crossbeam material thick quilt is thicker, and weight is larger；Seamless steel pipe compares pressing sheet material
It is at high cost.When the internal layer of crossbeam is arranged to be close to outer layer, it is also easy to produce friction abnormal sound.Crossbeam after welding close by internal layer, nothing
Rust preventing is also easy to produce internal layer corrosion.For the vehicle of different wheelspans, different crossbeam mold toolings need to be developed, it can not be general
Lead to frock cost height.
CN105216573, which discloses a kind of tubulose torsion beam and manufacturing process, in-between section, makes interlude along axis doubling
Section at symmetrical fold-line-shaped, the internal layer of the fold-line-shaped is close to outer layer, between internal layer and outer layer pass through transition arc mistake
It crosses.Since internal layer is close to setting with outer layer, although making torsion beam that there is certain rigidity, it is easy to produce friction abnormal sound.
Its manufacturing process is using round tube hydroforming, higher cost.
CN206664191U discloses a kind of closed torsion beam, and the closed torsion beam is carried out along own axes direction
The perimeter for each cutting plane that cutting obtains is equal, so that material does not generate plastic deformation in thickness direction in forming process, i.e.,
The influence of material not Tensile and compressing force, but beam-end perimeter dimension is also limited in this way, so that crossbeam and trailing arm
The stability of connection is poor, and there are security risks.
Summary of the invention
The object of the present invention is to provide a kind of torsion beam crossbeam, torsion beam assembly and automobiles, meet lightweight requirements, can
It is versatile by property height.
Torsion beam crossbeam of the present invention, including cross-beam body, the cross-beam body are formed using punching press pipe crimping, in
Between interlude, changeover portion and lap segment are successively divided to both ends；The interlude section is U-shaped or V-type, including outer layer and interior
Layer, is equipped with gap, two layers of junction transition arc transition between the two, and the radius of the transition arc is interlude wall thickness
1.5 ~ 2.5 times；The lap segment ellipsoidal cross section, circle or rectangular, lap segment perimeter of section are interlude perimeter of section
1.25 ~ 2 times；The cross sectional shape of the cross-beam body is seamlessly transitted from lap segment to interlude.
Further, the outer layer upper end is equipped with closed weld, and the internal layer is equipped with corresponding with closed weld position
Keep away weldering groove.
Further, weldering the distance between the groove and outer layer kept away is to keep away weld clearance, and value is greater than 1.5 times of interlude walls
It is thick.
Further, the lower end of the cross-beam body is equipped with oil filler point.
Further, the free end of the lap segment is equipped with the overlap joint sideline with trailing arm overlap joint cooperation, the overlap joint sideline
1.5 ~ 2.25 times of Zhou Changwei interlude perimeter of section.
Further, the overlap joint sideline is adjusted using laser cutting molding according to different wheelspan vehicles.
A kind of torsion beam assembly, including above-mentioned torsion beam crossbeam, the both ends of the torsion beam crossbeam are connected separately with torsion
Power beam trailing arm.
A kind of automobile, including above-mentioned torsion beam assembly.
The present invention has the advantages that compared with prior art：
1, due to being formed using punching press pipe crimping, lap segment perimeter of section and the ratio of interlude perimeter of section can be set cross-beam body
That sets is bigger, improves the reliability of cross-beam body, while interlude perimeter of section can be arranged smaller, meet lightweight and want
It asks.
2, it is equipped with gap between the outer layer and internal layer of cross-beam body interlude, avoids generating friction abnormal sound.In closed weld
Position is equipped with and keeps away weld clearance, has ensured welding heat dissipation, avoids inside and outside layer bonding after welding.
3, cross-beam body lower end is equipped with oil filler point, passes through the oil filler point to cross-beam body after cross-beam body and trailing arm welding
Interior oiling, welded closure oil filler point after oiling effectively prevent generating corrosion inside cross-beam body, and can be in internal layer, outer layer
Between play lubricant effect, avoid abnormal sound from generating.
4, it is defined by the perimeter to cross-beam body and trailing arm overlapped overlap joint sideline, different overlap joint sidelines is set
The installation requirements for meeting different wheelspan vehicles, improve the versatility of cross-beam body, reduce manufacturing cost.
5, by rationally limiting the ratio of lap segment perimeter of section Yu interlude perimeter of section, it both ensure that cross-beam body
Rigidity requirement, while cross-beam body and trailing arm overlapping area are expanded, improve the reliability of cross-beam body.
Detailed description of the invention
Fig. 1 is the main view of cross-beam body of the invention；
Fig. 2 is the bottom view of cross-beam body of the invention；
Fig. 3 is the Section A-A schematic diagram of Fig. 1；
Fig. 4 is the partial enlarged view in the region E of Fig. 3；
Fig. 5 is the section B-B schematic diagram of Fig. 1；
Fig. 6 is the C-C schematic cross-section of Fig. 1；
Fig. 7 is the D-D schematic cross-section of Fig. 1；
Fig. 8 is the structural schematic diagram of the torsion beam assembly comprising cross-beam body of the invention；
Fig. 9 is the structural schematic diagram of cross-beam body manufacture blank；
Figure 10 is the cutting method schematic diagram in cross-beam body overlap joint sideline.
In figure, 1-cross-beam body, 11-closed welds, 2-interludes, 21-outer layers, 22-internal layers, 23-transition circles
Arc, 3-changeover portions, 4-lap segments, 41-overlap joint sidelines, 5-oil filler points, 6-trailing arms, 7-lap welds, 8-plate bases
Material, 81-blank ends, 82-Long Wheelbase vehicle trim lines, 83-short wheelbase vehicle trim lines；
S1-interlude perimeter of section, S2-lap segment perimeter of section, S3-overlap joint sideline perimeter, S4-blank sideline perimeter,
M1-keeps away weld clearance, the minimum clearance of M2-outer layer and internal layer, t-wall thickness, β-opening angle.
Specific embodiment
It elaborates with reference to the accompanying drawing to the present invention.
Referring to Fig. 1 and Fig. 2, torsion beam crossbeam shown in, including cross-beam body 1, the cross-beam body 1 use punching press pipe crimping
Molding successively divides interlude 2, changeover portion 3 and lap segment 4 to both ends from intermediate.It is formed using pipe crimping, so that cross-beam body is taken
The ratio for meeting section section week S2 long and interlude perimeter of section S1 can be arranged bigger, improve the reliability 1 of cross-beam body
Interlude perimeter of section S1 can be arranged smaller simultaneously, meet lightweight requirements.
Referring to Fig. 3 and Fig. 4,2 section of interlude is V-shaped, including outer layer 21 and internal layer 22, between being equipped between the two
Gap, two layers of 23 transition of junction transition arc, the radius of the transition arc 23 are 1.5 ~ 2.5 times of interlude wall thickness t.Root
It is required according to concrete technology, the section of interlude 1 can also be set as U-shaped.Between being equipped between the outer layer 21 and internal layer 22 of interlude 2
Gap avoids generation friction abnormal sound, influences the NVH performance of vehicle.
Referring to Fig. 5 to Fig. 7,4 ellipsoidal cross section of lap segment, lap segment perimeter of section S2 is interlude perimeter of section
1.25 ~ 2 times of S1；The cross sectional shape of cross-beam body 1 is seamlessly transitted by changeover portion 3 to interlude 1 from lap segment 4.According to tool
Body technology requirement, the section of lap segment 4 can also be provided in round or rectangular.
21 upper end of outer layer be equipped with closed weld 11, internal layer 22 be equipped with it is corresponding with 11 position of closed weld keep away weldering it is recessed
Slot 221, keeping away weldering the distance between groove 221 and outer layer 21 is to keep away weld clearance M1, and value is greater than 1.5 times of interlude wall thickness t.Keep away weldering
The setting in gap can effective guarantee welding heat dissipation, avoid inside and outside section bonding after welding.
It is equipped with oil filler point 5 in the lower end of cross-beam body 1, after the completion of cross-beam body 1 and trailing arm 6 weld, passes through the oiling
The oiling into cross-beam body 1 of hole 5, welded closure oil filler point 5 after oiling effectively prevent generating corrosion inside cross-beam body 1, and
And lubricant effect can be played between internal layer 22, outer layer 21, avoid abnormal sound from generating.
It is equipped with the overlap joint sideline 41 with the overlap joint cooperation of trailing arm 6 in the free end of lap segment 4, the overlap joint sideline perimeter S3 is
1.5 ~ 2.25 times of interlude perimeter of section S1, specific value are selected according to different wheelspan vehicles.Sideline is overlapped using sharp
Light excision forming.
When specific production, referring to Fig. 9 and Figure 10, plate blank 8 is subjected to punching operation first, then pipe crimping forms to obtain
The cross sectional shape of the interlude 2 of cross-beam body 1, changeover portion 3 and lap segment 4.Blank sideline perimeter S4 is interlude perimeter of section
1.5 ~ 2.5 times of S1 are not easy to be thinned, can be set as bell shape, opening angle β using the molding blank end 81 of pipe crimping
It is 10 ~ 30 °, requires to be selected according to concrete technology.Again using laser cutting method molding overlap joint sideline 41, according to vehicle wheel
Away from difference, select corresponding Long Wheelbase vehicle 82 and short wheelbase vehicle trim lines 83, the crossbeam sheet only manufactured with one set of die
Body can satisfy the demand of different automobile types, improve versatility, reduce frock cost.
Referring to Fig. 8, a kind of torsion beam assembly, including above-mentioned torsion beam crossbeam, the both ends of the torsion beam crossbeam are distinguished
It is welded with torsion beam trailing arm 2, the trend of lap weld 7 and overlap joint sideline 41 are consistent.
A kind of automobile, including above-mentioned torsion beam assembly.
Claims (8)
1. a kind of torsion beam crossbeam, including cross-beam body（1）, it is characterised in that：The cross-beam body（1）Using punching press pipe crimping at
Type successively divides interlude from centre to both ends（2）, changeover portion（3）And lap segment（4）；
The interlude（2）Section is U-shaped or V-type, including outer layer（21）And internal layer（22）, between the two be equipped with gap, two layers
Junction transition arc（23）Transition, the radius of the transition arc are interlude wall thickness（t）1.5 ~ 2.5 times；
The lap segment（4）Ellipsoidal cross section, circle or rectangular, lap segment perimeter of section（S2）For interlude perimeter of section
（S1）1.25 ~ 2 times；
The cross-beam body（1）Cross sectional shape from lap segment（4）To interlude（2）Pass through changeover portion（3）Smooth transition.
2. torsion beam crossbeam according to claim 1, it is characterised in that：The outer layer（21）Upper end is equipped with closed weld
（11）, the internal layer（22）It is equipped with and closed weld（11）Position is corresponding to keep away weldering groove（221）.
3. torsion beam crossbeam according to claim 2, it is characterised in that：It is described to keep away weldering groove（221）With outer layer（21）It
Between distance be keep away weld clearance（M1）, value is greater than 1.5 times of interlude wall thickness（t）.
4. torsion beam crossbeam according to claim 1 or 2, it is characterised in that：The cross-beam body（1）Lower end be equipped with note
Oilhole（5）.
5. torsion beam crossbeam according to claim 1 or 2, it is characterised in that：The lap segment（4）Free end be equipped with
Trailing arm（6）Overlap the overlap joint sideline of cooperation（41）, overlap joint sideline perimeter（S3）For interlude perimeter of section（S1）1.5 ~
2.25 again.
6. torsion beam crossbeam according to claim 5, it is characterised in that：The overlap joint sideline（41）Using being laser-cut into
Type is adjusted according to different wheelspan vehicles.
7. a kind of torsion beam assembly, it is characterised in that：It is described including torsion beam crossbeam as claimed in any one of claims 1 to 7
The both ends of torsion beam crossbeam are connected separately with torsion beam trailing arm.
8. a kind of automobile, it is characterised in that：Including torsion beam assembly as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858322.8A CN108909398A (en) | 2018-07-31 | 2018-07-31 | A kind of torsion beam crossbeam, torsion beam assembly and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858322.8A CN108909398A (en) | 2018-07-31 | 2018-07-31 | A kind of torsion beam crossbeam, torsion beam assembly and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108909398A true CN108909398A (en) | 2018-11-30 |
Family
ID=64393339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810858322.8A Pending CN108909398A (en) | 2018-07-31 | 2018-07-31 | A kind of torsion beam crossbeam, torsion beam assembly and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108909398A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315924A (en) * | 2019-07-31 | 2019-10-11 | 天人汽车底盘（芜湖）股份有限公司 | The high-performance torsion beam of plate shaping |
| CN110385956A (en) * | 2019-07-31 | 2019-10-29 | 天人汽车底盘（芜湖）股份有限公司 | The stamping forming high-performance torsion beam of control |
| CN110509734A (en) * | 2019-08-15 | 2019-11-29 | 浙江合众新能源汽车有限公司 | One kind being based on the prolongable rear torsion beam suspension frame structure of platform |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036679A2 (en) * | 1999-03-13 | 2000-09-20 | ThyssenKrupp Automotive AG | Twist-beam rear axle |
| CN101623996A (en) * | 2008-07-09 | 2010-01-13 | 株式会社和信 | Beam formed by plank and making method thereof |
| CN103920787A (en) * | 2014-03-27 | 2014-07-16 | 宝山钢铁股份有限公司 | Hydraulic forming method for pipe fitting torsion beam |
| CN105216573A (en) * | 2014-06-06 | 2016-01-06 | 上海宝钢高新技术零部件有限公司 | Tubulose torsion beam and manufacturing process |
| CN107310342A (en) * | 2016-04-26 | 2017-11-03 | 宝山钢铁股份有限公司 | Variable cross-section line hydraulic expanding tube torsion beam |
| CN206870784U (en) * | 2017-03-03 | 2018-01-12 | 袁璐 | Rear suspension torsion girder construction |
-
2018
- 2018-07-31 CN CN201810858322.8A patent/CN108909398A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1036679A2 (en) * | 1999-03-13 | 2000-09-20 | ThyssenKrupp Automotive AG | Twist-beam rear axle |
| CN101623996A (en) * | 2008-07-09 | 2010-01-13 | 株式会社和信 | Beam formed by plank and making method thereof |
| CN103920787A (en) * | 2014-03-27 | 2014-07-16 | 宝山钢铁股份有限公司 | Hydraulic forming method for pipe fitting torsion beam |
| CN105216573A (en) * | 2014-06-06 | 2016-01-06 | 上海宝钢高新技术零部件有限公司 | Tubulose torsion beam and manufacturing process |
| CN107310342A (en) * | 2016-04-26 | 2017-11-03 | 宝山钢铁股份有限公司 | Variable cross-section line hydraulic expanding tube torsion beam |
| CN206870784U (en) * | 2017-03-03 | 2018-01-12 | 袁璐 | Rear suspension torsion girder construction |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315924A (en) * | 2019-07-31 | 2019-10-11 | 天人汽车底盘（芜湖）股份有限公司 | The high-performance torsion beam of plate shaping |
| CN110385956A (en) * | 2019-07-31 | 2019-10-29 | 天人汽车底盘（芜湖）股份有限公司 | The stamping forming high-performance torsion beam of control |
| CN110509734A (en) * | 2019-08-15 | 2019-11-29 | 浙江合众新能源汽车有限公司 | One kind being based on the prolongable rear torsion beam suspension frame structure of platform |
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Application publication date: 20181130 |