CN104354552A - Wheel bracket end part structure for automotive suspension - Google Patents
Wheel bracket end part structure for automotive suspension Download PDFInfo
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- CN104354552A CN104354552A CN201410512164.2A CN201410512164A CN104354552A CN 104354552 A CN104354552 A CN 104354552A CN 201410512164 A CN201410512164 A CN 201410512164A CN 104354552 A CN104354552 A CN 104354552A
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- wheel stand
- height
- end part
- stand end
- trailing arm
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Abstract
The invention provides a wheel bracket end part structure for an automotive suspension. The height of the wheel bracket end part is increased to be one to two times of the thickness of a plate, the radius of curvature is 50%-100% of the height, and the included angle between the direction of the wheel bracket end part and the axis of a trailing arm is 20-40 degrees. According to the torsion beam wheel bracket of the suspension, the height and the direction of the bracket end part are re-designed; the height of the end part is increased, together with the relatively big arc transition, the weld joint is in smooth transition, and accordingly, stress concentration of the end part weld joint can be reduced; the included angle between the end part and the axis of the trailing arm is controlled to improve the rigidity allocation of the connecting part, the end part stress concentration can be reduced by about 40%, and the fatigue life of a torsion beam is prolonged.
Description
Technical field
The present invention relates to automobile manufacturing field, particularly relate to a kind of automotive suspension wheel stand end construction.
Background technology
Torsion beam semi-independent suspension is rear overhang hanging hang structure conventional at present, there is structure simple, cost is low, the advantage such as take up room little, the torsion beam consisted of the crossbeam of an overall V-type or U-shaped section is the trailing arm weld together of the left and right sides, the front end of trailing arm is supported by rubber-metal and is connected with vehicle body, and the rear end of trailing arm is connected with spring with wheel hub, shock absorber.The trailing arm of torsion beam can swing up and down around rubber twisted point to absorb vibration by shock absorber and spring, plays absorbing effect, and when both sides Suspension Deformation does not wait, torsion beam torsional deflection, can play the effect of stabilizer antiroll bar.Torsion beam assembly is the critical component of torsion beam semi-independent suspension, play power transmission, the stressed effect with being connected balance both sides, and wheel stand is vitals wheel and suspension coupled together, bear and transmit all force and moments of wheel, in turning operating mode, cross in the operating modes such as dell operating mode, distortion operating mode, be easy to make wheel stand and trailing arm welding region and enclosure region thereof produce stress concentrate, reduce the safety factor of trailing arm and wheel stand welding region, shorten the service life of torsion beam semi-independent suspension, time serious, cause safety misadventure.
Existing patented technology
1), wheel stand end height is less, and has end to have less fillet.(CN201220221192.5)
2), wheel stand end trend is consistent with trailing arm axis.(CN201220409722.9)。
Existing torsion beam semi-independent rear overhang wheel stand structure is as shown in figure (accompanying drawing 1,2,3):
1) wheel stand end height is less, as Fig. 2; In Fig. 2, A place represents: chamfering is less, and B place represents: end height is less, easily causes stress to concentrate.
2), wheel stand end trend almost parallel with trailing arm line of centers, as in Fig. 3, Fig. 3, C place represent: wheel stand end trend and trailing arm axis less parallel, D place expression: trailing arm axis.
In making proof procedure, there is following problem in this structure:
1), wheel stand end height is less, easily causes stress to concentrate, occur early failure phenomena, affects the tired service life of torsion beam;
2), wheel stand end trend consistent with trailing arm axis, be unfavorable for the Stiffness Distribution of whole connection structure, affect the endurance life of torsion beam.
Summary of the invention
Technical matters to be solved by this invention is:
A kind of wheel stand end construction is provided, this wheel stand end construction solves the problem of stress concentration caused because end height is less, and walk by changing end the rigidity distribution object always reaching and improve whole link, thus improve the endurance life of torsion beam.
For solving the problems of the technologies described above adopted technical scheme be: a kind of automotive suspension wheel stand end construction, wheel stand end height increases, height is 1 to 2 times of sheet metal thickness, radius of rounding scope is 50% to 100% of height, and wheel stand end trend is 20 ° ~ 40 ° angles with the angle of trailing arm axis.
As a further improvement on the present invention, described height is 1.2 to 1.8 times of sheet metal thickness.
As a further improvement on the present invention, described height is 1.4 to 1.6 times of sheet metal thickness.
As a further improvement on the present invention, described height is 1.5 times of sheet metal thickness.
As a further improvement on the present invention, radius of rounding scope is 60% to 90% of height.
As a further improvement on the present invention, radius of rounding scope is 70% to 80% of height.
As a further improvement on the present invention, radius of rounding scope is 75% of height.
As a further improvement on the present invention, wheel stand end trend is 22 ° ~ 38 ° angles with the angle of trailing arm axis.
As a further improvement on the present invention, wheel stand end trend is 24 ° ~ 36 ° angles with the angle of trailing arm axis.
As a further improvement on the present invention, wheel stand end trend is 28 ° ~ 32 ° angles with the angle of trailing arm axis.
The invention has the beneficial effects as follows:
The wheel stand of torsion beam type suspension of the present invention, has redesigned height and the trend of bracket end.Increase end height in addition comparatively great circle arc transition again, make weld seam transition round and smooth, the stress that can reduce end weld is concentrated; The rigidity simultaneously improving connecting portion by the angle controlled between end and trailing arm axis is distributed, reduces end stress concentrated about 40%, improves the fatigue life of torsion beam.
Accompanying drawing explanation
Fig. 1 is trailing arm torsion beam suspension assembly structure schematic diagram;
Fig. 2 is existing wheel stand structural representation;
Fig. 3 is that schematic diagram is moved towards in existing wheel stand end;
Fig. 4 is torsion beam wheel stand structural representation of the present invention;
Fig. 5 is that schematic diagram is moved towards in torsion beam wheel stand end of the present invention.
In figure, each component names is as follows:
1-vibration damper complement, 2-wheel stand, rubber cushion on 3-spring, 4-bump rubber, 5-coil spring, rubber cushion under 6-spring, 7-spring perch, 8-turns round beam crossbeam.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Embodiment 1:
If Fig. 4, Fig. 4 are torsion beam wheel stand structural representations of the present invention; In Fig. 4, E represents that wheel stand end height increases and has comparatively Rouno Cormer Pregrinding Wheel.If Fig. 5, Fig. 5 are that schematic diagram is moved towards in torsion beam wheel stand end of the present invention, in Fig. 5, F represents: wheel stand end trend about becomes 30 degree of angles with trailing arm axis, and G represents: trailing arm axis.
A kind of automotive suspension wheel stand end construction, wheel stand end height increases, and height is 1.5 times of sheet metal thickness t, and has larger fillet, and radius of rounding scope is 80% of height.Wheel stand end is moved towards to change, with trailing arm axis about 30 ° of angles.
Embodiment 2:
A kind of automotive suspension wheel stand end construction, wheel stand end height increases, and height is 1.2 times of sheet metal thickness t, and has larger fillet, and radius of rounding scope is 60% of height.Wheel stand end is moved towards to change, with trailing arm axis about 25 ° of angles.
Embodiment 3:
A kind of automotive suspension wheel stand end construction, wheel stand end height increases, and height is 1.8 times of sheet metal thickness t, and has larger fillet, and radius of rounding scope is 90% of height.Wheel stand end is moved towards to change, with trailing arm axis about 38 ° of angles.
In a word, wheel stand end height increases, and height is 1 ~ 2 times of sheet metal thickness t, and radius of rounding scope is 50% to 100% of height.Wheel stand end is moved towards to change, with trailing arm axis about 20 ° ~ 40 ° angles.
By increasing the height of the end of wheel stand, and fall a larger fillet at bending part, can allow the milder of weld seam transition, no matter as arcing point or receive acnode, the heap high altitude of weld seam can be reduced, the row that can reduce convex fillet weld becomes, thus reduces the notch effect of weld seam.
By adjustment wheel stand end trend and trailing arm axis angle value, improve bracket end rigidity, optimize the rigidity of structure distribution of whole connecting portion, reduce end stress and concentrate about 40%, improve the endurance life of part.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. an automotive suspension wheel stand end construction, it is characterized in that: wheel stand end height increases, height is 1 to 2 times of sheet metal thickness, and radius of rounding scope is 50% to 100% of height, and wheel stand end trend is 20 ° ~ 40 ° angles with the angle of trailing arm axis.
2. a kind of automotive suspension wheel stand end construction according to claim 1, is characterized in that: described height is 1.2 to 1.8 times of sheet metal thickness.
3. a kind of automotive suspension wheel stand end construction according to claim 2, is characterized in that: described height is 1.4 to 1.6 times of sheet metal thickness.
4. a kind of automotive suspension wheel stand end construction according to claim 3, is characterized in that: described height is 1.5 times of sheet metal thickness.
5. a kind of automotive suspension wheel stand end construction according to claim 1, is characterized in that: radius of rounding scope is 60% to 90% of height.
6. a kind of automotive suspension wheel stand end construction according to claim 5, is characterized in that: radius of rounding scope is 70% to 80% of height.
7. a kind of automotive suspension wheel stand end construction according to claim 6, is characterized in that: radius of rounding scope is 75% of height.
8. a kind of automotive suspension wheel stand end construction according to claim 1, is characterized in that: wheel stand end trend is 22 ° ~ 38 ° angles with the angle of trailing arm axis.
9. a kind of automotive suspension wheel stand end construction according to claim 8, is characterized in that: wheel stand end trend is 24 ° ~ 36 ° angles with the angle of trailing arm axis.
10. a kind of automotive suspension wheel stand end construction according to claim 9, is characterized in that: wheel stand end trend is 28 ° ~ 32 ° angles with the angle of trailing arm axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512164.2A CN104354552A (en) | 2014-09-29 | 2014-09-29 | Wheel bracket end part structure for automotive suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410512164.2A CN104354552A (en) | 2014-09-29 | 2014-09-29 | Wheel bracket end part structure for automotive suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104354552A true CN104354552A (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410512164.2A Pending CN104354552A (en) | 2014-09-29 | 2014-09-29 | Wheel bracket end part structure for automotive suspension |
Country Status (1)
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| CN (1) | CN104354552A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124984A (en) * | 1982-08-13 | 1984-02-29 | Opel Adam Ag | Rear axle for a vehicle particularly a motor vehicle |
| FR2819754A1 (en) * | 2001-01-23 | 2002-07-26 | Auto Chassis Int | FLEXIBLE REAR AXLE FOR MOTOR VEHICLE |
| JP2004042690A (en) * | 2002-07-09 | 2004-02-12 | F Tech:Kk | Torsion beam type suspension |
| WO2005042274A1 (en) * | 2003-10-29 | 2005-05-12 | Auto Chassis International Snc | Flexible axle having a transverse stiffness which is increased with the aid of at least one spring-cup-forming part, spring cup and corresponding vehicle |
| CN102019827A (en) * | 2010-12-09 | 2011-04-20 | 金华福多纳机械有限公司 | Variable cross-section vehicle trailing arm member |
| CN103568772A (en) * | 2013-11-11 | 2014-02-12 | 上汽通用五菱汽车股份有限公司 | Torsion beam assembly |
| CN204172628U (en) * | 2014-09-29 | 2015-02-25 | 上汽通用五菱汽车股份有限公司 | A kind of automotive suspension wheel stand end construction |
-
2014
- 2014-09-29 CN CN201410512164.2A patent/CN104354552A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2124984A (en) * | 1982-08-13 | 1984-02-29 | Opel Adam Ag | Rear axle for a vehicle particularly a motor vehicle |
| FR2819754A1 (en) * | 2001-01-23 | 2002-07-26 | Auto Chassis Int | FLEXIBLE REAR AXLE FOR MOTOR VEHICLE |
| JP2004042690A (en) * | 2002-07-09 | 2004-02-12 | F Tech:Kk | Torsion beam type suspension |
| WO2005042274A1 (en) * | 2003-10-29 | 2005-05-12 | Auto Chassis International Snc | Flexible axle having a transverse stiffness which is increased with the aid of at least one spring-cup-forming part, spring cup and corresponding vehicle |
| CN102019827A (en) * | 2010-12-09 | 2011-04-20 | 金华福多纳机械有限公司 | Variable cross-section vehicle trailing arm member |
| CN103568772A (en) * | 2013-11-11 | 2014-02-12 | 上汽通用五菱汽车股份有限公司 | Torsion beam assembly |
| CN204172628U (en) * | 2014-09-29 | 2015-02-25 | 上汽通用五菱汽车股份有限公司 | A kind of automotive suspension wheel stand end construction |
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Application publication date: 20150218 |