CN104309427A - Automobile suspension swinging arm structure - Google Patents

Automobile suspension swinging arm structure Download PDF

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Publication number
CN104309427A
CN104309427A CN201410512162.3A CN201410512162A CN104309427A CN 104309427 A CN104309427 A CN 104309427A CN 201410512162 A CN201410512162 A CN 201410512162A CN 104309427 A CN104309427 A CN 104309427A
Authority
CN
China
Prior art keywords
hole
swinging arm
lower plate
automobile suspension
upper plate
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.)
Pending
Application number
CN201410512162.3A
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Chinese (zh)
Inventor
潘俊斌
何云峰
肖光育
伍初东
景玄博
林春欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC GM Wuling Automobile Co Ltd
Original Assignee
SAIC GM Wuling Automobile Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SAIC GM Wuling Automobile Co Ltd filed Critical SAIC GM Wuling Automobile Co Ltd
Priority to CN201410512162.3A priority Critical patent/CN104309427A/en
Publication of CN104309427A publication Critical patent/CN104309427A/en
Pending legal-status Critical Current

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Abstract

The invention provides an automobile suspension swinging arm structure, which comprises an upper plate, a lower plate, a first iron sleeve, a second iron sleeve and a spring seat, wherein the upper plate is in the dimension that the two ends are narrow but the middle is wide, the lower plate is a component with the U-shaped cross section, the two ends of the U-shaped cross section of the lower plate are large, the middle of the U-shaped cross section of the lower plate is small, the upper plate and the lower plate are connected, the cross section is of a sealed structure, the spring seat is arranged on the upper plate, and the first iron sleeve and the second iron sleeve are arranged at the two ends of the upper and lower plates. The automobile suspension swinging arm structure has the advantages that a guide rod is a non-independent suspension lower swinging arm, the structure of the lower swinging arm is designed again, an upward opening is adopted, all reinforcing plates are omitted, in addition, the upper and lower plates and the front and back iron sleeves are welded into a sealed structure, the welding work procedures are reduced, then, the influence on the intensity and the rigidity of swinging welding elements caused by different positions of welding seams is analyzed through CAE (Computer Aided Engineering) simulation, the optimum welding seam position is found, the use requirements are met in aspects of the rigidity and the intensity, the service life of a suspension is prolonged, and in addition, the weight reducing rate reaches 20 percent.

Description

A kind of automobile suspension swinging arm structure
Technical field
The present invention relates to automobile manufacturing field, particularly relate to a kind of automobile suspension swinging arm structure.
Background technology
Suspension ensures wheel or has resilient connection between vehicle bridge and automobile bearing system (vehicle frame or self-supporting body) and can transmitted load, relax impact, the general name of the relative assembly such as vehicle body position in damped vibration and vehicles traveling.
The topmost function of suspension transmits all force and moments acted between wheel and vehicle frame (or vehicle body), and the impact produced when relaxing its vehicle travels uneven road surface, the vibration of the bearing system caused thus of decaying, to ensure ride of vehicle.Resilient connection must be provided between wheel and vehicle frame or vehicle body for this reason, rely on elastic element to transmit vertical load between wheel or vehicle bridge and vehicle frame or vehicle body, and rely on its distortion to absorb energy, reach the object of buffering.
In addition, guarantee all force and moment reliable delivery between wheel and vehicle frame or vehicle body in suspension and determine that wheel is referred to as guiding mechanism relative to the connecting device of the placement property of vehicle frame or vehicle body.Path of motion when guiding mechanism determines wheel bounce and the change of wheel alignment parameter, and the position of roll center before and after automobile, thus the road-holding property of car load and anti-trim ability is have impact in very great achievement degree.
The dependent suspension of guiding leverage, tractive force and braking force and moment are born in pumping arm action, and lateral rod is for transmitting side force.In the braking that moves ahead, turning operating mode, cross in the operating modes such as dell operating mode, distortion operating mode, the in-use performance that lower swing arm requires to provide enough intensity, rigidity could meet swing arm, and the impact of the welding manner counter stress of the version of swing arm and weld seam is also very large.Even if same structure, the position difference due to welding also can cause intensity difference comparatively large, so select suitable position of weld can improve the strength and stiffness of structure, makes the safety of car load higher.
Existing guiding leverage dependent suspension lower suspension arm structure is as shown in figure (accompanying drawing 11,12): this swing arm soldering member component part is: 1-iron cover I; 2-brace panel I; 3-swing arm main body; 4-brace panel II; 5-spring perch; 6-brace panel III; 7-iron cover II.Open Side Down for wherein swing arm main body 3, and spring perch is directly welded on the top of swing arm, and swing arm two ends are overlapped with iron respectively and welded, and connects in the below of swing arm main body 3 and the inner brace panel 2,4,6 that passes through.
In making proof procedure, there is following problem in this structure:
1), brace panel causes Fabrication procedure to increase more, and pts wt is larger;
2), volume of part is large, is unfavorable for that chassis part space is arranged;
3), weld seam is many, and welding heat distortion is large, affect parts size precision, and cost is high;
4), swing arm body openings direction, and adopts semi-enclosed structure down, is unfavorable for swing arm bulk strength.
2, existing patented technology
1), a kind of lower swing arm component of automotive suspension (CN200920101382.1).
2), multi link rear suspension is with punching press top link (CN201320107208.4).
Summary of the invention
In order to solve problem in prior art, the invention provides a kind of automobile suspension swinging arm structure, comprise upper plate, lower plate, the first iron cover, the second iron cover and spring perch, upper plate is that two area of beds are narrow, middle wide, lower plate to be cross section the be parts of U-shaped, the U-shaped sectional area two ends of lower plate are large, middle little, upper plate and lower plate link together, cross section is enclosed construction, and spring perch is arranged on upper plate, and the first iron cover, the second iron are set on upper and lower plates two ends.
As a further improvement on the present invention, described upper plate intermediate width is H, and two ends narrower part width h1=h2 is 0.4H ~ 0.6H.
As a further improvement on the present invention, described upper plate and lower plate are by being welded together, and spring perch is welded on upper plate, and two iron covers are welded on upper and lower plates two ends.
As a further improvement on the present invention, the first end of lower plate and the second end are provided with the welding distance of at least 5mm.
As a further improvement on the present invention, after upper plate is connected with lower plate, the right end region of the swing arm of composition is wider than left end region, and described right end region is the one end near spring perch.
As a further improvement on the present invention, in lower plate, h is the width of U-shaped plate bottom surface, bottom surface is provided with the 3rd hole and the 4th hole, 3rd hole and the 4th bore dia are 0.4h ~ 0.6h, the 3rd width between centers end, hole distance L3=h, the 4th width between centers end, hole distance L4=33mm ± 2mm.
As a further improvement on the present invention, in lower plate 200, two Side symmetrical of U-shaped plate are provided with the 5th hole to the 9th hole, and the 5th hole is 0.4h ~ 0.6h to the 9th pore radius.
As a further improvement on the present invention, the center of circle in the 5th hole is to the distance L5=h of lower plate 200 end, the distance L6 at the 5th hole and the 6th center, hole and the distance L7 at the 6th hole and seven apertures in the human head center is 2h, the distance L8=3h at seven apertures in the human head and octal center, the distance L9=2 h at octal and the 9th center, hole.
The invention has the beneficial effects as follows:
The present invention leads leverage dependent suspension lower swing arm, redesign the structure of lower swing arm, adopt opening upwards, cancel all brace panels, and upper and lower plates and front and back iron overlap to weld and goes into an enclosed structure, welding sequence is reduced, again by the impact on swing arm soldering member intensity and rigidity of the diverse location of CAE sunykatuib analysis weld seam, have found best position while welding, not only on stiffness and strength, meet operating needs, improve the service life of suspension, and weight-loss ratio reaches 20%.
Accompanying drawing explanation
Fig. 1 is a kind of automobile suspension swinging arm structure of the present invention upper plate graphics;
Fig. 2 is a kind of automobile suspension swinging arm structure of the present invention upper plate birds-eye view;
Fig. 3 is a kind of automobile suspension swinging arm structure of the present invention upper plate lateral plan;
Fig. 4 is a kind of automobile suspension swinging arm structure of the present invention lower plate graphics;
Fig. 5 is a kind of automobile suspension swinging arm structure of the present invention lower plate birds-eye view;
Fig. 6 is a kind of automobile suspension swinging arm structure of the present invention lower plate lateral plan;
Fig. 7 is a kind of automobile suspension swinging arm structure of the present invention seam assembly graphics;
Fig. 8 is a kind of automobile suspension swinging arm structure of the present invention seam assembly upward view;
Fig. 9 is a kind of automobile suspension swinging arm structure of the present invention seam assembly birds-eye view;
Figure 10 is a kind of automobile suspension swinging arm structure of the present invention seam assembly lateral plan;
Figure 11 is prior art arm side view;
Figure 12 is prior art swing arm bottom view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
A kind of swing arm structure is provided, meets the strength and stiffness requirement of car load, by layout rational in infrastructure, reach lightweight object and ensure life requirements simultaneously.This swing arm is made up of upper and lower two boards, need not brace panel, solves and welds by brace panel the problem of stress concentration caused; By the sunykatuib analysis of CAE butt welded seam position, improve the distribution of intensity; By going material process to the place of redundancy after cae analysis, reach the object of loss of weight.CAE (Computer Aided Engineering) is a kind of numerical approximation analysis method by the problem such as the analytical calculation of mechanical property and the optimal design of structural behaviour such as Computer Aided Solution complex engineering and product structure intensity, rigidity, buckling stability, dynamic response, heat transfer, three-dimensional multimer contact, elastoplasticity.
As Fig. 1 to Fig. 3, Fig. 1 is a kind of automobile suspension swinging arm structure of the present invention upper plate graphics; Fig. 2 is a kind of automobile suspension swinging arm structure of the present invention upper plate birds-eye view; Fig. 3 is a kind of automobile suspension swinging arm structure of the present invention upper plate lateral plan.The upper plate of swing arm is Steel Sheet part, and two area of beds are narrow, middle wide, rationally avoids lower plate and interferes.
Swing arm upper plate intermediate width is H, and two ends narrower part width h1=h2 is 0.4H ~ 0.6H, and the first hole 2, hole 1, second diameter is all about 0.4 h1 ~ 0.6 h1.
As shown in Figures 4 to 6, Fig. 4 is a kind of automobile suspension swinging arm structure of the present invention lower plate graphics; Fig. 5 is a kind of automobile suspension swinging arm structure of the present invention lower plate birds-eye view; Fig. 6 is a kind of automobile suspension swinging arm structure of the present invention lower plate lateral plan.Swing arm lower plate structure is be U-shaped by the cross section of Steel Sheet, and the U-shaped sectional area two ends of lower plate are large, middle little, effectively utilizes material, realizes lightweight.
In swing arm lower plate, h is U-shaped plate width, and wherein the 3rd hole 3 and the 4th hole 4 diameter are 0.4h ~ 0.6h, the 3rd width between centers end, hole 3 distance L3=h, 4th width between centers end, hole 4 distance L4=33mm ± 2mm, the first end 201 of lower plate 200 and the second end 202 are provided with the welding distance of at least 5mm, and the 5th hole 5 is in 0.4h ~ 0.6h, Fig. 6 to the 9th hole 9 radius, L5=h, L6=L7=2 h, L8=3h, L9=2 h.Two Side symmetrical of U-shaped plate are provided with the 5th hole 5 to the 9th hole 9.
As Fig. 7 to Fig. 9, Fig. 7 is a kind of automobile suspension swinging arm structure of the present invention seam assembly graphics; Fig. 8 is a kind of automobile suspension swinging arm structure of the present invention seam assembly upward view; Fig. 9 is a kind of automobile suspension swinging arm structure of the present invention seam assembly birds-eye view.A kind of automobile suspension swinging arm structure, this swing arm main body comprises upper plate 100, lower plate 200, first iron cover 300, second iron cover 400 and spring perch 500.
Swing arm upper and lower plates is by being welded together, and cross section is enclosed construction, and swing arm fusion length and position distribution rationally, effectively can improve the Stiffness Distribution of swing arm, reach the object reducing stress.Swing arm spring perch is welded on upper plate, and two iron covers are welded on upper and lower plates two ends.
Swing arm upper plate and lower plate adopt segmentation to weld, and the position of weld of spring perch and upper plate is as follows: position 30,40 is not welded; Position 50,60,70,80 is welded.
As shown in Figure 10, the right end region 19 of swing arm is wider than left end region 18, mainly little at position, region 18 stress through cae analysis, so done except material process at region 18 place, and open some lightening holes in the place that stress is little, realize the lightweight of swing arm with this.
A kind of opening direction provided by the invention upwards, without the totally enclosed swing arm of brace panel:
This swing arm structure manufacturing process is simple, and main body is made up of the pressed sheet of two pieces of comparison rule, does not have additional brace panel, and the overall stamping material degree of utilization of part is high;
Swing arm cross section is enclosed construction, uses minimum material to improve bending resistant section coefficient, meets the requirement of part strength and rigidity, make part loss of weight simultaneously;
Optimize welding line length and location, the rigidity improving swing arm is distributed, and reduces part stress, reduces welding heat distortion and improves element precision.
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 (8)

1. an automobile suspension swinging arm structure, it is characterized in that: comprise upper plate (100), lower plate (200), the first iron cover (300), the second iron cover (400) and spring perch (500), upper plate is that two area of beds are narrow, middle wide, lower plate (200) to be cross section the be parts of U-shaped, lower plate U-shaped sectional area two ends are large, middle little, upper plate (100) and lower plate (200) link together, cross section is enclosed construction, spring perch (500) is arranged on upper plate (100), and the first iron cover (300), the second iron cover (400) are arranged on upper and lower plates two ends.
2. a kind of automobile suspension swinging arm structure according to claim 1, is characterized in that: described upper plate (100) intermediate width is H, two ends narrower part width h1=h2 is 0.4H ~ 0.6H.
3. a kind of automobile suspension swinging arm structure according to claim 1, is characterized in that: described upper plate (100) and lower plate (200) are by being welded together, and spring perch (500) is welded on upper plate (100), and two iron covers are welded on upper and lower plates two ends.
4. a kind of automobile suspension swinging arm structure according to claim 1, is characterized in that: the first end (201) of lower plate (200) and the second end (202) are provided with the welding distance of at least 5mm.
5. a kind of automobile suspension swinging arm structure according to claim 1, it is characterized in that: after upper plate (100) is connected with lower plate (200), the right end region (19) of the swing arm of composition is wider than left end region (18), described right end region (19) is the one end near spring perch (500).
6. a kind of automobile suspension swinging arm structure according to claim 1, it is characterized in that: in lower plate (200), h is the width of U-shaped plate bottom surface, bottom surface is provided with the 3rd hole (3) and the 4th hole (4), 3rd hole (3) and the 4th hole (4) diameter are 0.4h ~ 0.6h, 3rd hole (3) width between centers end distance L3=h, the 4th hole (4) width between centers end distance L4=33mm ± 2mm.
7. a kind of automobile suspension swinging arm structure according to claim 6, is characterized in that: in lower plate (200), and two Side symmetrical of U-shaped plate are provided with the 5th hole (5) to the 9th hole (9), and the 5th hole (5) is 0.4h ~ 0.6h to the 9th hole (9) radius.
8. a kind of automobile suspension swinging arm structure according to claim 7, it is characterized in that: the center of circle in the 5th hole (5) is to the distance L5=h of lower plate (200) end, the distance L6 at the 5th hole (5) and the 6th hole (6) center and the distance L7 at the 6th hole (6) and seven apertures in the human head (7) center is 2h, the distance L8=3h at seven apertures in the human head (7) and octal (8) center, the distance L9=2 h at octal (8) and the 9th hole (9) center.
CN201410512162.3A 2014-09-29 2014-09-29 Automobile suspension swinging arm structure Pending CN104309427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410512162.3A CN104309427A (en) 2014-09-29 2014-09-29 Automobile suspension swinging arm structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410512162.3A CN104309427A (en) 2014-09-29 2014-09-29 Automobile suspension swinging arm structure

Publications (1)

Publication Number Publication Date
CN104309427A true CN104309427A (en) 2015-01-28

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ID=52364800

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410512162.3A Pending CN104309427A (en) 2014-09-29 2014-09-29 Automobile suspension swinging arm structure

Country Status (1)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1364817A2 (en) * 2002-05-22 2003-11-26 Norsk Hydro Asa One-piece suspension arm
CN1978230A (en) * 2005-12-05 2007-06-13 本田技研工业株式会社 Torsion beam suspension
KR20090020337A (en) * 2007-08-23 2009-02-26 현대자동차주식회사 Spring lower seat for mounting coil spring
CN201633486U (en) * 2010-01-08 2010-11-17 重庆长安汽车股份有限公司 Lower control arm of automobile rear suspension
JP2011111156A (en) * 2009-11-23 2011-06-09 Hyundai Motor Co Ltd Control arm for multi-link suspension device
WO2012124733A1 (en) * 2011-03-14 2012-09-20 株式会社ヨロズ Vehicular arm component and production method therefor
CN204172635U (en) * 2014-09-29 2015-02-25 上汽通用五菱汽车股份有限公司 A kind of automobile suspension swinging arm structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1364817A2 (en) * 2002-05-22 2003-11-26 Norsk Hydro Asa One-piece suspension arm
CN1978230A (en) * 2005-12-05 2007-06-13 本田技研工业株式会社 Torsion beam suspension
KR20090020337A (en) * 2007-08-23 2009-02-26 현대자동차주식회사 Spring lower seat for mounting coil spring
JP2011111156A (en) * 2009-11-23 2011-06-09 Hyundai Motor Co Ltd Control arm for multi-link suspension device
CN201633486U (en) * 2010-01-08 2010-11-17 重庆长安汽车股份有限公司 Lower control arm of automobile rear suspension
WO2012124733A1 (en) * 2011-03-14 2012-09-20 株式会社ヨロズ Vehicular arm component and production method therefor
CN204172635U (en) * 2014-09-29 2015-02-25 上汽通用五菱汽车股份有限公司 A kind of automobile suspension swinging arm structure

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Application publication date: 20150128

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