CN210851917U - Toe-in control arm and suspension system - Google Patents

Toe-in control arm and suspension system Download PDF

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Publication number
CN210851917U
CN210851917U CN201920890562.6U CN201920890562U CN210851917U CN 210851917 U CN210851917 U CN 210851917U CN 201920890562 U CN201920890562 U CN 201920890562U CN 210851917 U CN210851917 U CN 210851917U
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control arm
toe
arm body
reinforcing rib
thickness
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CN201920890562.6U
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Chinese (zh)
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刘燕
程卓
何家兴
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Abstract

The utility model relates to the technical field of automobiles, and discloses a toe-in control arm and a suspension system comprising the toe-in control arm, wherein the toe-in control arm comprises a control arm body, an inner mounting part and an outer mounting part which are respectively arranged at the inner end and the outer end of the control arm body, and the control arm body is integrally in a backward convex bow-arrow shape; front reinforcing ribs are respectively formed by extending towards two sides along the front side edge of the control arm body, and rear reinforcing ribs are respectively formed by extending towards two sides along the rear side edge of the control arm body; the thickness of the front reinforcing rib is kept uniform and consistent, and the thickness of the rear reinforcing rib is gradually increased from two ends to the middle. The utility model has the advantages that: the space arrangement requirement is met, the internal and external transverse force and the front and rear longitudinal force can be borne simultaneously, the transverse force and the longitudinal force are reasonably distributed and scientifically transmitted through the design of the reinforcing ribs, and the higher strength and the higher buckling performance can be obtained through the toe-in control arm with lower weight.

Description

Toe-in control arm and suspension system
Technical Field
The utility model relates to the technical field of automobiles, especially, relate to a toe-in control arm reaches suspension system including this toe-in control arm.
Background
At present, more and more vehicle types adopt a multi-link structure on a rear suspension, and the multi-link type suspension is combined by 4-5 rod pieces so as to control the position change of wheels; its main advantage is: the change of the wheel track and the toe-in is very small when the wheels jump, the automobile can smoothly turn according to the intention of a driver no matter the automobile is in a driving or braking state, the turning adaptability is better, the side-rolling of the automobile body is small, and the toe-in angle of the rear wheels can be changed under the action of the turning side-rolling, so that the rear wheels can turn along with the front wheels to a certain degree, and the purposes of comfort and controllability are achieved.
The toe-in control arm is used for adjusting the toe-in angle of the rear wheel, improves the running stability of the vehicle together with other control arms, effectively reduces the friction of the tire and achieves the excellent comprehensive performance of the multi-link suspension.
In the prior art, a toe-in control arm in a multi-link suspension is designed to be a straight arm, is mostly a round tube, a forged part or a stamped steel plate part and the like, occupies limited transverse space, and can be used only without interference of other parts in a linear direction, and for a 5-link suspension with a rear wheel belt steering function, because an inner point of the toe-in control arm is limited by the position of a steering machine, an outer point is limited by the position of a tire, and a spring shock absorber needs to be avoided in front of the toe-in control arm, a straight arm structure cannot meet the requirement of spatial arrangement; in addition, in the 5-link suspension, the trailing arm is not arranged in the longitudinal direction, when the wheel is impacted in the longitudinal direction, the wheel generates obvious bouncing feeling, and the toe control arm bears certain longitudinal force, so that deformation and displacement are easily caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's not enough, providing a toe-in control arm, not only can satisfy the spatial arrangement requirement, and can increase structural strength, the incorruptibility is improved.
In order to achieve the above object, a first aspect of the present invention provides a toe-in control arm, which includes a control arm body, and an inner mounting portion and an outer mounting portion respectively disposed at inner and outer ends of the control arm body, wherein the control arm body is in a backward convex bow-arrow shape;
front reinforcing ribs are respectively formed by extending towards two sides along the front side edge of the control arm body, and rear reinforcing ribs are respectively formed by extending towards two sides along the rear side edge of the control arm body;
the thickness of the front reinforcing rib is kept uniform and consistent, and the thickness of the rear reinforcing rib is gradually increased from two ends to the middle.
As a preferable scheme, the width of the front reinforcing rib is in a distribution trend that the middle is wide and the two ends are narrow;
the two ends of the rear reinforcing rib do not extend to the two ends of the control body, and the widths of the rear reinforcing rib are kept uniform.
Preferably, the thickness of the front reinforcing rib at any position is larger than that of the rear reinforcing rib at the position corresponding to the front reinforcing rib.
Preferably, a groove is defined between the front reinforcing rib and the rear reinforcing rib which are positioned on the same side.
Preferably, the control arm body is symmetrically distributed along the inner side and the outer side of the control arm body and the upper side and the lower side of the control arm body.
Preferably, the front side surface of the control arm body is in a smooth transition curved surface shape.
Preferably, the front side of the control arm body comprises a first plane, a convex arc surface, a concave arc surface and a second plane which are sequentially connected from two ends to the middle of the control arm body.
Preferably, the central axis of the inner mounting portion and the central axis of the outer mounting portion are both perpendicular to the first plane.
Preferably, the toe-in control arm is made of aluminum alloy.
In a second aspect of the present invention, there is provided a suspension system including the toe control arm according to any one of the first aspect.
Compared with the prior art, the beneficial effects of the utility model reside in that:
according to the toe-in control arm provided by the embodiment of the utility model, the control arm body is arranged into a backward-protruding bow-arrow shape, and the front side of the control arm body is provided with a space for avoiding the spring due to the design of the control arm body into a bent shape, so that the space arrangement requirement can be met, and the movement process is ensured to be free of interference; in addition, the bow-arrow shape design can also bear the transverse force and the longitudinal force at the same time; moreover, be provided with preceding strengthening rib and back strengthening rib on the control arm body, the thickness of preceding strengthening rib keeps even unanimous, and the thickness of back strengthening rib is from the both ends of control arm body to middle bodiness gradually, realizes the rational distribution and the scientific transmission of horizontal power and longitudinal force, can acquire higher intensity and buckling performance through the toe-in control arm of lower weight.
Drawings
Fig. 1 is a schematic structural view of a toe-in control arm in an embodiment of the present invention;
FIG. 2 is a partial sectional view A-A of FIG. 1;
FIG. 3 is a partial sectional view B-B of FIG. 1;
fig. 4 is a schematic structural diagram of a toe-in control arm at another angle of vision in the embodiment of the present invention.
In the figure, 10, the control arm body; 11. a front reinforcing rib; 12. a rear reinforcing rib; 13. a groove; 14. a front side; 141. a first plane; 142. a convex arc surface; 143. a concave arc surface; 144. a second plane; 20. an inner mounting portion; 30. an outer mounting portion.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
In addition, it is also noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", and the like indicate an orientation or positional relationship based on when the toe-control arm is assembled to the vehicle body.
As shown in fig. 1-4, a first aspect of the preferred embodiment of the present invention provides a toe-in control arm, which includes a control arm body 10, and an inner side mounting portion 20 and an outer side mounting portion 30 respectively disposed at the inner and outer ends of the control arm body 10, wherein the control arm body 10 is in a backward convex bow-arrow shape; the inner side mounting part 20 is connected with an auxiliary frame, the outer side mounting part 30 is connected with wheels, and the wheel guiding and force transferring are realized, because the control arm body 10 is arranged into a bent shape, and a space capable of avoiding a spring is formed in the front side of the control arm body 10, the space arrangement requirement is met, the interference is not generated in the movement process, and when the wheels are impacted longitudinally, a part of longitudinal force is born by the concave part of the front side surface 14 of the control arm body 10, so that the transverse resultant force is reduced, and the durability of the whole structure is improved;
in addition, front reinforcing ribs 11 are respectively formed by extending to two sides along the front side edge of the control arm body 10, and rear reinforcing ribs 12 are respectively formed by extending to two sides along the rear side edge of the control arm body 10; the thickness of the front reinforcing rib 11 is kept uniform, and the thickness of the rear reinforcing rib 12 is gradually increased from two ends to the middle; based on above-mentioned technical scheme, set up preceding, back strengthening rib in this embodiment and can guarantee structural strength, and the thickness variation trend of preceding, back strengthening rib of ingenious design realizes rational distribution and the scientific transmission of inside and outside transverse force and front and back longitudinal force, can acquire higher intensity, buckling performance through the toe-in control of lower weight.
Referring specifically to fig. 2 and 3, the thickness of the front reinforcing rib 11 at a-a and the thickness of the front reinforcing rib 11 at B-B are both d; the thickness of the rear reinforcing bead 12 at the position a-a is 0, the thickness of the rear reinforcing bead 12 at the position B-B is h, and the thickness of the rear reinforcing bead 12 at the position B-B is greater than the thickness of the rear reinforcing bead 12 at the position a-a.
Specifically, as can be seen from fig. 1, the width of the front reinforcing rib 11 is a distribution trend that the middle is wide and the two ends are narrow, the two ends of the rear reinforcing rib 12 do not extend to the two ends of the control arm body 10, that is, the two ends of the rear reinforcing rib 12 respectively keep a distance from the front side installation part 20 to the rear side installation part 30, and the widths of the rear reinforcing rib 12 at the positions are kept uniform and consistent, so that the stress can be further distributed reasonably, and higher strength and buckling performance can be obtained through lower weight.
Referring specifically to fig. 2 and 3, the width of the front reinforcing rib 11 at a-a is L1, and the width of the front reinforcing rib 11 at B-B is L2, where L2 > L1; the rear reinforcing beads 12 are L-wide at all places.
For the same purpose, in the present embodiment, the thickness of the front reinforcing rib 11 at any position is greater than the thickness of the rear reinforcing rib 12 at the position corresponding to the front reinforcing rib, so as to meet the stress requirement; as shown in fig. 2 in particular, the thickness d1 of the front reinforcing bead 11 at B-B is greater than the thickness d2 of the rear reinforcing bead 12.
In this embodiment, in order to reduce the weight of the toe-in control arm as much as possible, grooves 13 are defined between the front reinforcing ribs 11 and the rear reinforcing ribs 12 located on the same side.
In addition, in this embodiment, the control arm body 10 is symmetrically distributed along the inner and outer directions and the upper and lower directions, so that the entire force is balanced, and the control arm not only bears the lateral force in the inner and outer directions, but also bears the longitudinal force in the front-rear direction of the vehicle.
As shown in fig. 1, the front side 14 of the control arm body 10 is a smooth curved surface, which can meet the requirement of space arrangement.
Further, the front side surface 14 of the control arm body 10 includes a first plane 141, a convex arc surface 142, a concave arc surface 143, and a second plane 144 connected in sequence from the two ends to the middle thereof; the design of the concave arc surface 143 meets the requirement of avoiding springs in spatial arrangement, and the movement process is ensured to be free of interference.
Illustratively, in the present embodiment, the width of the front reinforcing bead 11 is substantially uniformly maintained from the first plane 141 to the concave arc surface 143, while the front reinforcing bead 11 is gradually widened from both ends to the middle at the second plane 143; with particular reference to fig. 1.
In this embodiment, the central axis of the inner mounting portion 20 and the central axis of the outer mounting portion 30 are both perpendicular to the first plane 141, so that the processing and the forming are convenient, and the stress is good; if the central axis of the inner mounting portion 20 and the central axis of the outer mounting portion 30 both form an angle smaller than 90 ° with the first plane 141, more space behind the vehicle needs to be occupied for avoiding, and for a rear-wheel steering vehicle, the clearance between the rear-wheel steering vehicle and the rim of the wheel becomes smaller, which poses a certain risk.
In this embodiment, the material of toe control arm is the aluminum alloy preferably, can realize the lightweight, has used the aluminum alloy material to reduce the weight of toe control arm to improve the resilience response speed of wheel, thereby improved the control ability of vehicle greatly, the travelling comfort has also obtained the promotion of matter thereupon.
It is a second aspect of embodiments of the present invention to provide a suspension system including a toe control arm as set forth in any one of the first aspect.
The suspension system in this embodiment, including the toe control arm of the first aspect, has all the advantages of the toe control arm, and therefore, the description thereof is omitted here.
To sum up, the embodiment of the present invention provides a suspension system and a toe-in control arm thereof, wherein the control arm body is in a bow-arrow shape protruding backward, front reinforcing ribs are respectively formed by extending to both sides along the front side edge of the control arm body, rear reinforcing ribs are respectively formed by extending to both sides along the rear side edge of the control arm body, the thicknesses of the front reinforcing ribs are uniform, and the thicknesses of the rear reinforcing ribs are gradually thickened from both ends to the middle; because the toe-in control arm is designed to be bent, and a space for avoiding the spring is formed on the front side, the space arrangement requirement can be met, and the non-interference in the movement process is ensured; and the curved structure can bear the inner and outer transverse forces and the front and rear longitudinal forces simultaneously, the thickness variation trends of the front and rear reinforcing ribs can realize the reasonable distribution and scientific transmission of the transverse forces and the longitudinal forces, and the higher strength and the higher buckling performance are obtained through the toe-in control arm with lower weight.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. A toe-in control arm is characterized by comprising a control arm body, and an inner side mounting part and an outer side mounting part which are respectively arranged at the inner end and the outer end of the control arm body, wherein the control arm body is integrally in a backward convex bow-arrow shape;
front reinforcing ribs are respectively formed by extending towards two sides along the front side edge of the control arm body, and rear reinforcing ribs are respectively formed by extending towards two sides along the rear side edge of the control arm body;
the thickness of the front reinforcing rib is kept uniform and consistent, and the thickness of the rear reinforcing rib is gradually increased from two ends to the middle.
2. The toe control arm according to claim 1, wherein the width of the front reinforcing rib is distributed in a manner that the middle part is wide and the two ends are narrow;
the two ends of the rear reinforcing rib do not extend to the two ends of the control body, and the widths of the rear reinforcing rib are kept uniform.
3. The toe control arm according to claim 1, wherein the thickness of the front reinforcing rib at any position is greater than the thickness of the rear reinforcing rib at a position corresponding thereto.
4. The toe control arm of claim 1, wherein a groove is defined between the front stiffener and the rear stiffener on the same side.
5. The toe-control arm according to claim 1, wherein the toe-control arm is symmetrically arranged along the inner and outer directions and the upper and lower directions of the control arm body.
6. The toe control arm according to claim 5, wherein the front side of the control arm body is smoothly curved.
7. The toe control arm according to claim 6, wherein the front side surface of the control arm body comprises a first plane, a convex arc surface, a concave arc surface and a second plane which are sequentially connected from two ends to the middle of the front side surface.
8. The toe control arm of claim 7, wherein the central axis of the inboard mounting portion and the central axis of the outboard mounting portion are both perpendicular to the first plane.
9. The toe control arm according to any one of claims 1 to 8, wherein the toe control arm is made of an aluminum alloy.
10. A suspension system comprising a toe control arm according to any of claims 1 to 9.
CN201920890562.6U 2019-06-13 2019-06-13 Toe-in control arm and suspension system Active CN210851917U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920890562.6U CN210851917U (en) 2019-06-13 2019-06-13 Toe-in control arm and suspension system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920890562.6U CN210851917U (en) 2019-06-13 2019-06-13 Toe-in control arm and suspension system

Publications (1)

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CN210851917U true CN210851917U (en) 2020-06-26

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CN201920890562.6U Active CN210851917U (en) 2019-06-13 2019-06-13 Toe-in control arm and suspension system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114013233A (en) * 2021-11-03 2022-02-08 奇瑞汽车股份有限公司 Control arm on vehicle rear suspension and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114013233A (en) * 2021-11-03 2022-02-08 奇瑞汽车股份有限公司 Control arm on vehicle rear suspension and vehicle

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