CN206012259U - A kind of rear torsion beam assembly - Google Patents
A kind of rear torsion beam assembly Download PDFInfo
- Publication number
- CN206012259U CN206012259U CN201621001387.3U CN201621001387U CN206012259U CN 206012259 U CN206012259 U CN 206012259U CN 201621001387 U CN201621001387 U CN 201621001387U CN 206012259 U CN206012259 U CN 206012259U
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- spring base
- reinforcement
- trailing arm
- welding
- crossbeam
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Abstract
This utility model is related to a kind of rear torsion beam assembly, including crossbeam and two trailing arms for being respectively welded at crossbeam two ends, two trailing arms extend along the longitudinal direction, the corner portion constituted by the rear portion of the end of crossbeam and trailing arm is provided with spring base and reinforcement, spring base is provided with the spring mountings for spring after installation, it is overlapped on front side of spring base on crossbeam, the lateral overlap of spring base is on trailing arm, it is overlapped on front side of reinforcement on crossbeam, it is overlapped on rear side of reinforcement on spring base, the lateral overlap of reinforcement is on trailing arm, cavity is formed between spring base and reinforcement.This utility model can reduce the stress and crossbeam and the stress of trailing arm weld of stress, spring base and the trailing arm lap-joint of spring base and crossbeam lap-joint.
Description
Technical field
This utility model is related to automobile, and in particular to a kind of rear torsion beam assembly.
Background technology
Torsion beam assembly belongs to semi-independent suspension afterwards, its simple structure, with low cost, arrangement space require little, thus into
Standard configuration for middle-size and small-size passenger car.Existing rear torsion beam assembly is as shown in fig. 6, which includes former crossbeam 20 and is welded on former crossbeam
The former trailing arm 21 at 20 two ends, is welded with former spring base 22 on former trailing arm 21, when the complexity alternate stress such as torsional bending is subject to,
Weld seam on existing rear torsion beam assembly is susceptible to fatigue failure, the weld seam between particularly former crossbeam 20 and former trailing arm 21
There is very high fatigue stress often, it is difficult to be reduced in normal range, when reversing between former crossbeam 20 and former trailing arm 21
Power is transmitted only by weld seam, and the stress of the weld seam between so former crossbeam 20 and former trailing arm 21 is larger, is easily produced fatigue and is opened
Split.Simultaneously as the rear axle of automobile is not positioned in assembling, in order to ensure four wheel locating parameter in qualified scope, after
What the position of related features of axle mount point was controlled must be very strict, cause manufacturing cost higher.
Content of the invention
The purpose of this utility model is to propose a kind of rear torsion beam assembly, the rear torsion beam assembly can reduce spring base and
The stress of the stress and crossbeam and trailing arm weld of the stress of crossbeam lap-joint, spring base and trailing arm lap-joint.
A kind of rear torsion beam assembly described in the utility model, is respectively welded at the crossbeam two ends including crossbeam and two
Trailing arm, two trailing arms extend along the longitudinal direction, the angle constituted by the rear portion of the end of the crossbeam and the trailing arm
Spring base and reinforcement is provided with portion, and the spring base is provided with the spring mountings for spring after installation, the spring
The front side of seat is overlapped on the crossbeam, and the lateral overlap of the spring base is taken on front side of the reinforcement on the trailing arm
It is connected on the crossbeam, is overlapped on rear side of the reinforcement on the spring base, the lateral overlap of the reinforcement is described
On trailing arm, between the spring base and the reinforcement, cavity is formed with.
Further, the cavity is by the lower surface of the spring base, the upper surface of the reinforcement, the trailing arm and described
Crossbeam is surrounded.
Further, the face of the reinforcement dorsad spring base is provided with locating surface, is provided with positioning at the locating surface
Hole.
Further, the location hole on a reinforcement is circular hole, described fixed on another described reinforcement
Position hole is bar hole.
Further, the first welding edge with the beam welding is provided with front side of the reinforcement, outside the reinforcement
Side is provided with the second welding edge with trailing arm welding, is provided with the 3rd weldering with spring base welding on rear side of the reinforcement
Edge fit.
Further, the 3rd welding edge is welded on the edge of the spring mountings.
Further, the spring mountings are located at the rear portion of the spring base, are provided with the outside of the rear portion of the spring base
First flange, is provided with the second flange, is provided with the 3rd flange on the inside of the spring base on rear side of the spring base.
Further, the 4th welding edge with the beam welding is provided with front side of the spring base, and the spring base is anterior
Outside be provided with the trailing arm welding the 5th welding edge, on first flange have with the trailing arm welding the 6th weldering
Edge fit, has the 7th welding edge with trailing arm welding on second flange.
Further, the 5th welding edge and the 6th welding edge extend along the length direction of the trailing arm, described
7th welding edge is in arc line shaped and the 7th welding edge is along the circumferentially extending of the trailing arm.
Further, the front portion of the spring base is provided with reinforcement.
In this utility model, the front side of spring base is overlapped with crossbeam, and be increased reinforcement in spring base, crossbeam and indulged
Formed between arm and strengthened, reduce the stress and horizontal stroke of stress, spring base and the trailing arm lap-joint of spring base and crossbeam lap-joint
Beam and the stress of trailing arm weld, due to being formed with cavity between spring base and reinforcement, further enhancing stiffening effect, plus
Strong part also acts the effect of support spring seat, reduces the stress of spring base, extends the fatigue life of spring base；Strengthening
Location hole and locating surface is provided with part, and when automobile is assembled, location hole and locating surface can be positioned to the rear axle of automobile,
Ensure that the precision of vehicle four wheel locating parameter, it is to avoid cause manufacturing cost high because the required precision of rear axle mount point is high
Problem, while location hole can reduce difficulty of processing as size datum in the machining process of reinforcement, it is ensured that
The machining accuracy of reinforcement.
Description of the drawings
Fig. 1 is upward view of the present utility model；
Top views of the Fig. 2 for this utility model right half part；
Left views of the Fig. 3 for Fig. 2；
Structural representations of the Fig. 4 for reinforcement；
Structural representations of the Fig. 5 for spring base；
Fig. 6 is the structural representation of rear torsion beam assembly right half part in background technology.
In figure：1 crossbeam；2 trailing arms；3 spring bases；4 reinforcements；5 spring mountings；6 locating surfaces；7—
Location hole；8 first welding edges；9 second welding edges；10 the 3rd welding edges；11 the 4th welding edges；12 the 5th welding
Side；13 first flange；14 the 6th welding edges；15 second flange；16 the 7th welding edges；17 the 3rd flange；18—
Reinforcement；19 cavitys；20 former crossbeams；21 former trailing arms；22 former spring bases.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
A kind of rear torsion beam assembly as shown in Figure 1, Figure 2 and Figure 3, is respectively welded at 1 liang of crossbeam including crossbeam 1 and two
The trailing arm 2 at end, two trailing arms 2 extend along the longitudinal direction, and the corner portion constituted by the rear portion of the end of crossbeam 1 and trailing arm 2 sets
Spring base 3 and reinforcement 4 is equipped with, spring base 3 is provided with the spring mountings 5 for spring after installation, and the front side of spring base 3 is taken
It is connected on crossbeam 1, on trailing arm 2, the front side of reinforcement 4 is overlapped on crossbeam 1 lateral overlap of spring base 3, after reinforcement 4
Side is overlapped on spring base 3, and the lateral overlap of reinforcement 4 is formed with cavity between spring base 3 and reinforcement 4 on trailing arm 2
19.As a kind of preferably, cavity 19 is surrounded by the lower surface of spring base 3, the upper surface of reinforcement 4, trailing arm 2 and crossbeam 1.Adopt
With said structure, the front side of spring base 3 is overlapped with crossbeam 1, and increased reinforcement 4 spring base 3, crossbeam 1 and trailing arm 2 it
Between formed strengthen, reduce stress, the stress of 2 lap-joint of spring base 3 and trailing arm and the horizontal stroke of 1 lap-joint of spring base 3 and crossbeam
The stress of 2 weld of beam 1 and trailing arm, due to being formed with cavity 19 between spring base 3 and reinforcement 4, further enhancing reinforcement
Effect, reinforcement 4 also act the effect of support spring seat 3, reduce the stress of spring base 3, extend the fatigue of spring base 3
Life-span.
Further, the face of the dorsad spring base 3 of reinforcement 4 is provided with locating surface 6, is provided with location hole 7 at locating surface 6.As
A kind of preferred, the location hole 7 on a reinforcement 4 is circular hole, and the location hole 7 on another reinforcement 4 is bar hole.Using upper
Structure is stated, when automobile is assembled, location hole 7 and locating surface 6 can be positioned to the rear axle of automobile, ensure that automobile four-wheel
The precision of positional parameter, it is to avoid the problem for causing manufacturing cost high because the required precision of rear axle mount point is high, while positioning
Hole 7 can reduce difficulty of processing as size datum in the machining process of reinforcement 4, it is ensured that the processing of reinforcement
Precision.As one kind preferably, reinforcement 4 is plate-like.
Further, as shown in figure 4, the front side of reinforcement 4 is provided with the first welding edge 8 with the welding of crossbeam 1, reinforcement 4
Outside is provided with the second welding edge 9 with the welding of trailing arm 2, and the rear side of reinforcement 4 is provided with the 3rd welding edge with the welding of spring base 3
10.Preferably for enabling 4 more preferable support spring seat 3 of reinforcement, increase the bearing capacity of spring base 3 as a kind of, the 3rd welds
Side 10 is welded on the edge of spring mountings 5, in order to ensure that welding effect, the edge of spring mountings 5 are provided with for fixed
The positioning inclined-plane of the 3rd welding edge 10 of position.
Further, as shown in figure 5, spring mountings 5 are located at the rear portion of spring base 3, it is provided with the outside of the rear portion of spring base 3
First flange 13, the rear side of spring base 3 are provided with the second flange 15, and the inner side of spring base 3 is provided with the 3rd flange 17.First flange
13rd, the second flange 15 and the 3rd flange 17 strengthen the vertical stiffness of spring base 3, increased the bearing capacity of spring base 3, extend
The service life of spring base 3.As one kind preferably, the front side of spring base 3 is provided with the 4th welding edge 11 with the welding of crossbeam 1, bullet
The 5th welding edge 12 with the welding of trailing arm 2 is provided with the outside of 3 front portion of spring abutment, and there is on the first flange 13 the with the welding of trailing arm 2
Six welding edges 14, have the 7th welding edge 16 with the welding of trailing arm 2 on the second flange 15.5th welding edge 12 and the 6th welding edge
14 length directions along trailing arm 2 extend, and the 7th welding edge 16 is in arc line shaped and the 7th welding edge 16 prolongs along the circumference of trailing arm 2
Stretch.
Further, the front portion of spring base 3 is provided with reinforcement 18, and reinforcement 18 extends along the longitudinal direction.Using said structure,
Reinforcement 18 enhances 3 vertical stiffness of spring base, increased the bearing capacity of spring base 3.Reinforcement 18, the first flange 13, second
Flange 15 and the 3rd flange 17 reduce further the weld seam between spring base 3 and crossbeam 1 stress, spring base 3 and trailing arm 2 it
Between weld seam stress and the stress of the weld seam between crossbeam 1 and trailing arm 2, serve the effect for protecting above-mentioned weld seam.
" inner side " in this utility model refers to the one of the centrage for extending towards on rear torsion beam assembly along the longitudinal direction
Side, " outside " refer to the side of the centrage for extending on dorsad rear torsion beam assembly along the longitudinal direction.
Claims (10)
1. a kind of rear torsion beam assembly, it is characterised in that：Including crossbeam（1）The crossbeam is respectively welded at two（1）Two ends
Trailing arm（2）, two trailing arms（2）Extend along the longitudinal direction, the crossbeam（1）End and the trailing arm（2）After
The corner portion constituted by portion is provided with spring base（3）And reinforcement（4）, the spring base（3）It is provided with for spring after installation
Spring mountings（5）, the spring base（3）Front side be overlapped on the crossbeam（1）On, the spring base（3）Outside take
It is connected on the trailing arm（2）On, the reinforcement（4）Front side be overlapped on the crossbeam（1）On, the reinforcement（4）Rear side
It is overlapped on the spring base（3）On, the reinforcement（4）Lateral overlap in the trailing arm（2）On, the spring base（3）With
The reinforcement（4）Between be formed with cavity（19）.
2. rear torsion beam assembly according to claim 1, it is characterised in that：The cavity（19）By the spring base（3）
Lower surface, the reinforcement（4）Upper surface, the trailing arm（2）With the crossbeam（1）Surrounded.
3. rear torsion beam assembly according to claim 1 and 2, it is characterised in that：The reinforcement（4）The dorsad spring
Seat（3）Face be provided with locating surface（6）, the locating surface（6）Place is provided with location hole（7）.
4. rear torsion beam assembly according to claim 3, it is characterised in that：One reinforcement（4）On described fixed
Position hole（7）For circular hole, another described reinforcement（4）On the location hole（7）For bar hole.
5. rear torsion beam assembly according to claim 1 and 2, it is characterised in that：The reinforcement（4）Front side be provided with
The crossbeam（1）First welding edge of welding（8）, the reinforcement（4）Outside be provided with and the trailing arm（2）The second of welding
Welding edge（9）, the reinforcement（4）Rear side be provided with and the spring base（3）3rd welding edge of welding（10）.
6. rear torsion beam assembly according to claim 5, it is characterised in that：3rd welding edge（10）It is welded on described
Spring mountings（5）Edge.
7. rear torsion beam assembly according to claim 1 and 2, it is characterised in that：The spring mountings（5）It is located at described
Spring base（3）Rear portion, the spring base（3）Rear portion on the outside of be provided with the first flange（13）, the spring base（3）Rear side
It is provided with the second flange（15）, the spring base（3）Inner side be provided with the 3rd flange（17）.
8. rear torsion beam assembly according to claim 7, it is characterised in that：The spring base（3）Front side be provided with and institute
State crossbeam（1）4th welding edge of welding（11）, the spring base（3）Anterior outside is provided with and the trailing arm（2）Welding
5th welding edge（12）, first flange（13）Upper have and the trailing arm（2）6th welding edge of welding（14）, described
Two flange（15）Upper have and the trailing arm（2）7th welding edge of welding（16）.
9. rear torsion beam assembly according to claim 8, it is characterised in that：5th welding edge（12）With the described 6th
Welding edge（14）Along the trailing arm（2）Length direction extend, the 7th welding edge（16）It is in arc line shaped and the described 7th
Welding edge（16）Along the trailing arm（2）Circumferentially extending.
10. rear torsion beam assembly according to claim 7, it is characterised in that：The spring base（3）Front portion be provided with reinforcement
Muscle（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621001387.3U CN206012259U (en) | 2016-08-31 | 2016-08-31 | A kind of rear torsion beam assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621001387.3U CN206012259U (en) | 2016-08-31 | 2016-08-31 | A kind of rear torsion beam assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206012259U true CN206012259U (en) | 2017-03-15 |
Family
ID=58255920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621001387.3U Active CN206012259U (en) | 2016-08-31 | 2016-08-31 | A kind of rear torsion beam assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206012259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278489A (en) * | 2018-10-31 | 2019-01-29 | 重庆长安汽车股份有限公司 | The bridging arrangement of torsion beam, trailing arm and spring holder after a kind of |
-
2016
- 2016-08-31 CN CN201621001387.3U patent/CN206012259U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278489A (en) * | 2018-10-31 | 2019-01-29 | 重庆长安汽车股份有限公司 | The bridging arrangement of torsion beam, trailing arm and spring holder after a kind of |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |