CN107284167A - Lower swing arm component and vehicle - Google Patents
Lower swing arm component and vehicle Download PDFInfo
- Publication number
- CN107284167A CN107284167A CN201710395407.2A CN201710395407A CN107284167A CN 107284167 A CN107284167 A CN 107284167A CN 201710395407 A CN201710395407 A CN 201710395407A CN 107284167 A CN107284167 A CN 107284167A
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- Prior art keywords
- swing arm
- lower swing
- point
- hinge point
- wheel
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- Pending
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- 230000004044 response Effects 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/008—Attaching arms to unsprung part of vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of lower swing arm component and vehicle, the lower swing arm component includes：Knuckle, the knuckle is adapted to mount on wheel and with the first pin joint A and the second pin joint B；First lower swing arm, one end of first lower swing arm is hinged with the first pin joint A, and the other end is suitable to be hinged with the 3rd pin joint C on vehicle frame；Second lower swing arm, one end of second lower swing arm is hinged with the second pin joint B, and the other end is suitable to be hinged with the 4th pin joint D on the vehicle frame；Wherein, straight line AC and straight line BD intersection point is E, and the distance of E points to the center line of the wheel is less than the distance of the center line of the first pin joint A and the second pin joint B to the wheel.The lower swing arm component of the embodiment of the present invention, can be effectively reduced scrub radius, lift the steering behaviour of vehicle, and can effectively mitigate unsprung mass, lift dynamic response capability, braking ability, handling and wheels travel track the stability of vehicle.
Description
Technical Field
The invention belongs to the technical field of vehicle manufacturing, and particularly relates to a lower swing arm assembly and a vehicle with the same.
Background
The most commonly used front suspension on a vehicle is a macpherson suspension, which is widely used due to the characteristics of small occupied space and low cost. The McPherson suspension has a hinge point between a lower swing arm and a steering knuckle, two hinge points are arranged between the McPherson suspension and a vehicle frame, a wheel is connected with the vehicle frame through a three-point structure, the hinge point between the lower swing arm and the steering knuckle is a main pin lower swing point, the distance between the main pin lower swing point and a tire center line (main pin offset distance) is larger due to the limitation of the size of parts at the hinge point, when an automobile steers, the resistance moment of the ground to steering is positively correlated with the main pin offset distance, namely, the resistance moment of the McPherson suspension to steering is poor in lateral force bearing capacity due to the larger limitation of the structure, the direction is fuzzy in steering, and the problem of larger change of the wheel grounding point exists, the problem can cause the reduction of the tire ground holding force when the automobile steers, the steering performance is poor, the normal driving of the automobile is not only influenced, and the dangerous situation that the steering of the vehicle is out of, there is room for improvement.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a lower swing arm assembly which can effectively reduce the offset distance of a main pin.
According to an embodiment of the present invention, a lower swing arm assembly includes: a steering knuckle adapted to be mounted on a wheel and having a first hinge point A and a second hinge point B; one end of the first lower swing arm is hinged with the first hinge point A, and the other end of the first lower swing arm is suitable for being hinged with a third hinge point C on the frame; one end of the second lower swing arm is hinged with the second hinge point B, and the other end of the second lower swing arm is suitable for being hinged with a fourth hinge point D on the frame; and the intersection point of the straight line AC and the straight line BD is E, and the distance from the point E to the center line of the wheel is smaller than the distances from the first hinge point A and the second hinge point B to the center line of the wheel.
According to the lower swing arm assembly provided by the embodiment of the invention, the offset distance of the main pin can be effectively reduced so as to improve the steering performance of the whole vehicle, the unsprung mass can be effectively reduced, and the dynamic response capability, the braking performance, the controllability and the stability of the driving track of the wheels of the whole vehicle are improved.
According to the lower swing arm assembly provided by the embodiment of the invention, the third hinge point C is positioned above the fourth hinge point D, the intersection point of the straight line AC and the center line of the wheel is O, and the second hinge point B is positioned between &ADO.
Preferably, the first hinge point a is located outside the second hinge point B and above the second hinge point B.
Preferably, the following are satisfied: the angle ADB is more than 0.5 angle ADO.
Preferably, the following are satisfied: 2/3 is less than or equal to angle ADB/angle ADO is less than 1, and 1.5 degrees is less than or equal to angle ADB.
According to the lower swing arm assembly of one embodiment of the invention, the distance from the point E to the center line of the wheel is less than or equal to 40 mm.
According to the lower swing arm assembly of one embodiment of the invention, a central axis of one end of the first lower swing arm is perpendicular to a central axis of the other end of the first lower swing arm; the central axis of one end of the second lower swing arm is perpendicular to the central axis of the other end of the second lower swing arm.
According to an embodiment of the present invention, the first lower swing arm and the second lower swing arm each include: the hinge comprises a body part, wherein two ends of the body part are respectively provided with a mounting seat and a hinge hole; a bushing interference fit within the hinge bore; the ball pin is rotatably arranged in the mounting seat and is hinged with the steering knuckle.
The invention also provides a vehicle provided with a lower swing arm assembly as described in any one of the above.
The vehicle has the same advantages of the lower swing arm assembly relative to the prior art, and the detailed description is omitted.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a lower swing arm assembly according to an embodiment of the present invention (showing a partial structure of a wheel and a frame);
FIG. 2 is a schematic illustration of the location of a portion of the keypoints of the lower swing arm assembly according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of the first lower swing arm or the second lower swing arm according to the embodiment of the invention.
Reference numerals:
the lower swing arm assembly 100 is provided with,
the first lower swing arm 110, the second lower swing arm 120,
the bushing 131, the ball stud 132, the body portion 133, the hinge hole 1331, the mounting seat 1332,
the direction of rotation of the knuckle 130,
the center line of the wheel 200, the center line of the wheel 210,
a vehicle frame 300.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A lower swing arm assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1-3, the lower swing arm assembly 100 being used for a macpherson suspension.
As shown in fig. 1-3, a lower swing arm assembly 100 according to one embodiment of the present invention includes: a knuckle 130, a first lower swing arm 110, and a second lower swing arm 120.
Wherein the knuckle 130 is adapted to be mounted on the wheel 200, and the knuckle 130 has a first hinge point a and a second hinge point B, both for being hinged with the lower swing arm.
One end of the first lower swing arm 110 is hinged to the first hinge point a, the other end of the first lower swing arm 110 is suitable for being hinged to the third hinge point C on the frame 300, one end of the second lower swing arm 120 is hinged to the second hinge point B, and the other end of the second lower swing arm 120 is suitable for being hinged to the fourth hinge point D on the frame 300.
It will be appreciated that the wheel 200 is connected to the frame 300 by four points of articulation. After the first lower swing arm 110 is hinged to the frame 300, the first lower swing arm 110 can rotate around the third hinge point C, after the second lower swing arm 120 is hinged to the frame 300, the second lower swing arm 120 can rotate around the fourth hinge point D, when the wheel 200 jumps, the first lower swing arm 110 and the second lower swing arm 120 respectively rotate around the third hinge point C and the fourth hinge point D to ensure that the wheel 200 has enough jumping amount, and the connecting structure can still control the displacement amount of the wheel 200 moving in the front-rear direction.
The lower swing arm assembly 100 of the embodiment of the invention replaces a large swing arm in the related art by two thin swing arms, so that unsprung mass can be effectively reduced, and the dynamic response capability, the braking performance and the controllability of the whole vehicle are improved. And two hinge points of the two lower swing arms and the steering knuckle 130 are compared with one hinge point of the lower swing arm and the steering knuckle 130 in the related art, so that the positioning accuracy and the supporting performance of the wheel 200 can be improved, the stability of the driving track of the wheel 200 is ensured, and the safety is improved.
The intersection point of the straight line AC and the straight line BD is E, the point E is the intersection point of the ray CA and the ray DB, the distance from the point E to the center line 210 of the wheel 200 is smaller than the distance from the first hinge point a to the center line 210 of the wheel 200, the distance from the point E to the center line 210 of the wheel 200 is smaller than the distance from the second hinge point B to the center line 210 of the wheel 200, for example, the kingpin offset can be controlled within 40mm, that is, the distance from the point E to the center line 210 of the wheel 200 is less than or equal to 40 mm.
It can be understood that when two lower swing arms act together to control the knuckle 130, point E is the pivot point of the lower pivot pin of the lower swing arm assembly 100 according to the embodiment of the present invention, and since point E may not coincide with point a and point B, the pivot distance of the pivot pin can be reduced as much as possible by designing the length of the first lower swing arm 110, the hinge positions of the two ends of the first lower swing arm 110, the length of the second lower swing arm 120, and the hinge positions of the two ends of the second lower swing arm 120, so that the pivot distance can be reduced as much as possible.
According to the lower swing arm assembly 100 provided by the embodiment of the invention, under the condition that the overall structure of the suspension is not changed greatly, the three-point hinged type lower swing arm is changed into two lower swing arms, so that the inclination angle of a main pin is increased, the offset of the main pin is reduced as much as possible, the universal tire offset of the Macpherson suspension is reduced, the common steering deficiency problem of the vehicle type of the Macpherson suspension is solved, and particularly during high-speed turning, the steering deficiency is relieved obviously through the structural change of the lower swing arm.
According to the lower swing arm assembly 100 provided by the embodiment of the invention, the kingpin offset can be effectively reduced, so that the steering performance of the whole vehicle is improved, the unsprung mass can be effectively reduced, and the dynamic response capability, the braking performance, the controllability and the stability of the running track of the wheels 200 of the whole vehicle are improved.
According to the lower swing arm assembly 100 of one preferred embodiment of the present invention, as shown in fig. 1 and 2, the third hinge point C may be located above the fourth hinge point D, the intersection point of the straight line AC and the center line 210 of the wheel 200 is O, and the second hinge point B is located between ═ ADO. In this way, it is ensured that the distance of point E to the centre line 210 of the wheel 200 is smaller than the distance of the first hinge point a to the centre line 210 of the wheel 200, and that the distance of point E to the centre line 210 of the wheel 200 is smaller than the distance of the second hinge point B to the centre line 210 of the wheel 200. Note that the point E is located inside the center line 210 of the wheel 200, and may be infinitely close to the center line 210 of the wheel 200. Specifically, the first hinge point a is located outside the second hinge point B, and the first hinge point a is located above the second hinge point B.
Preferably, the following are satisfied: angle ADB > 0.5 angle ADO, such that the distance from point E to the centerline 210 of wheel 200 is smaller.
Preferably, the following are satisfied: 2/3 is less than or equal to angle ADB/angle ADO is less than 1, and 1.5 degrees is less than or equal to angle ADB. In this way, the distance from point E to center line 210 of wheel 200 is smaller, and first lower swing arm 110 and second lower swing arm 120 are not easily interfered, and do not affect the assembly of first lower swing arm 110 and second lower swing arm 120, angle ADB can approach to angle ADO infinitely, in a specific embodiment, angle ADO is 3 °, and angle ADB is 2.5 °.
According to the lower swing arm assembly 100 of a preferred embodiment of the present invention, as shown in fig. 3, the central axis of one end of the first lower swing arm 110 is perpendicular to the central axis of the other end; the central axis of one end of the second lower swing arm 120 is perpendicular to the central axis of the other end.
As shown in fig. 3, the first lower swing arm 110 and the second lower swing arm 120 each include: the body portion 133, the bushing 131, and the ball stud 132, the first swing lower arm 110, and the second swing lower arm 120 may be substantially identical in structure and different in size.
The two ends of the body 133 are respectively provided with a mounting seat 1332 and a hinge hole 1331, the bushing 131 is in interference fit in the hinge hole 1331, so that the bushing 131 cannot be easily removed when being subjected to an axial acting force, the ball stud 132 is rotatably mounted in the mounting seat 1332, the ball stud 132 is hinged to the knuckle 130, the ball stud 132 is pressed into the mounting seat 1332, and the ball stud 132 cannot be removed from the mounting seat 1332 due to the fit relationship and can rotate by a certain angle in all directions around the center of a sphere. The bushing 131 may be hinged to a hinge point on the frame 300, for example, the bushing 131 of the first lower swing arm 110 may be hinged to the third hinge point C, the bushing 131 of the second lower swing arm 120 may be hinged to the fourth hinge point D, and the ball pin 132 may be hinged to a hinge point on the knuckle 130, for example, the ball pin 132 of the first lower swing arm 110 may be hinged to the first hinge point a, and the ball pin 132 of the second lower swing arm 120 may be hinged to the second hinge point B.
The invention also discloses a vehicle.
As shown in fig. 1 to 3, a vehicle of an embodiment of the present invention is provided with a lower swing arm assembly 100 of any of the embodiments described above. According to the vehicle provided by the embodiment of the invention, the steering performance, the dynamic response capability, the braking performance, the maneuverability and the stability of the running track of the wheels 200 are good.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A lower swing arm assembly (100), comprising:
a steering knuckle (130), said steering knuckle (130) being adapted to be mounted on a wheel (200) and having a first articulation point A and a second articulation point B;
the first lower swing arm (110), one end of the first lower swing arm (110) is hinged with the first hinge point A, and the other end of the first lower swing arm is suitable for being hinged with a third hinge point C on the frame (300);
a second lower swing arm (120), one end of the second lower swing arm (120) is hinged with the second hinge point B, and the other end of the second lower swing arm is suitable for being hinged with a fourth hinge point D on the frame (300); wherein,
the intersection point of the straight line AC and the straight line BD is E, and the distance from the point E to the central line (210) of the wheel (200) is smaller than the distance from the first hinge point A and the second hinge point B to the central line (210) of the wheel (200).
2. The lower swing arm assembly (100) of claim 1, wherein the third hinge point C is located above the fourth hinge point D, the intersection of the straight line AC and the center line (210) of the wheel (200) is O, and the second hinge point B is located between ═ ADO.
3. The lower swing arm assembly (100) of claim 2, wherein the first hinge point a is located outboard of and above the second hinge point B.
4. The lower swing arm assembly (100) of claim 2, satisfying: the angle ADB is more than 0.5 angle ADO.
5. The lower swing arm assembly (100) of claim 2, satisfying: 2/3 is less than or equal to angle ADB/angle ADO is less than 1, and 1.5 degrees is less than or equal to angle ADB.
6. The lower swing arm assembly (100) of claim 1, wherein point E is a distance of ≦ 40mm from the centerline (210) of the wheel (200).
7. A lower swing arm assembly (100) according to any of claims 1-6, wherein the central axis of one end of the first lower swing arm (110) is perpendicular to the central axis of the other end; the central axis of one end of the second lower swing arm (120) is perpendicular to the central axis of the other end.
8. The lower swing arm assembly (100) according to any one of claims 1-6, wherein the first lower swing arm (110) and the second lower swing arm (120) each comprise:
the hinge comprises a body part (133), wherein two ends of the body part (133) are respectively provided with a mounting seat (1332) and a hinge hole (1331);
a bushing (131), the bushing (131) interference fit within the hinge bore (1331);
a ball stud (132), the ball stud (132) rotatably mounted in the mounting seat (1332) and hingedly connected to the knuckle (130).
9. A vehicle, characterized in that a lower swing arm assembly (100) according to any one of claims 1-8 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395407.2A CN107284167A (en) | 2017-05-26 | 2017-05-26 | Lower swing arm component and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395407.2A CN107284167A (en) | 2017-05-26 | 2017-05-26 | Lower swing arm component and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107284167A true CN107284167A (en) | 2017-10-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710395407.2A Pending CN107284167A (en) | 2017-05-26 | 2017-05-26 | Lower swing arm component and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107284167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633594A (en) * | 2020-12-15 | 2022-06-17 | 沃尔沃汽车公司 | Suspension system for vehicle and vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201784422U (en) * | 2010-04-15 | 2011-04-06 | 无锡同捷汽车设计有限公司 | Wheel suspension device for front wheels of automobile |
| CN202986705U (en) * | 2012-11-07 | 2013-06-12 | 上海通用汽车有限公司 | MacPherson type suspension for automobile |
| CN204955974U (en) * | 2015-09-16 | 2016-01-13 | 北汽福田汽车股份有限公司 | Swing arm structure under adjustable vehicle |
| US20160075200A1 (en) * | 2014-09-16 | 2016-03-17 | Agco Corporation | Progressive rate suspension for agricultural vehicle |
-
2017
- 2017-05-26 CN CN201710395407.2A patent/CN107284167A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201784422U (en) * | 2010-04-15 | 2011-04-06 | 无锡同捷汽车设计有限公司 | Wheel suspension device for front wheels of automobile |
| CN202986705U (en) * | 2012-11-07 | 2013-06-12 | 上海通用汽车有限公司 | MacPherson type suspension for automobile |
| US20160075200A1 (en) * | 2014-09-16 | 2016-03-17 | Agco Corporation | Progressive rate suspension for agricultural vehicle |
| CN204955974U (en) * | 2015-09-16 | 2016-01-13 | 北汽福田汽车股份有限公司 | Swing arm structure under adjustable vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633594A (en) * | 2020-12-15 | 2022-06-17 | 沃尔沃汽车公司 | Suspension system for vehicle and vehicle |
| CN114633594B (en) * | 2020-12-15 | 2023-05-23 | 沃尔沃汽车公司 | Suspension system for vehicle and vehicle |
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Application publication date: 20171024 |
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