CN223001334U - Lower arm structure, suspension system and vehicle - Google Patents
Lower arm structure, suspension system and vehicle Download PDFInfo
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- CN223001334U CN223001334U CN202422036649.0U CN202422036649U CN223001334U CN 223001334 U CN223001334 U CN 223001334U CN 202422036649 U CN202422036649 U CN 202422036649U CN 223001334 U CN223001334 U CN 223001334U
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- swing arm
- lower swing
- mounting
- boss
- suspension system
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Abstract
The utility model discloses a lower swing arm structure, a suspension system and a vehicle, wherein the lower swing arm structure comprises a lower swing arm, one end of the lower swing arm in the Y direction is provided with a first installation part which is hinged with a frame, the lower swing arm is also provided with an installation boss which is hinged with a stabilizer bar pull rod and a second installation part which is hinged with a shock absorber, the second installation part is positioned at one side of the installation boss away from the first installation part, and the installation boss and the second installation part are respectively positioned at two sides of the lower swing arm in the Z direction. According to the lower swing arm structure, the mounting boss is arranged between the first mounting part and the second mounting part, the mounting boss and the second mounting part are respectively arranged on two sides of the lower swing arm along the Z direction, and the positions of all connecting points of the lower swing arm are reasonably arranged, so that the weight and the cost of the lower swing arm are reduced, the unsprung mass of a suspension system is reduced, the impact load of the suspension system is also reduced, and the comfort and the stability of a vehicle are improved.
Description
Technical Field
The utility model relates to the technical field of suspensions, in particular to a lower swing arm structure, a suspension system and a vehicle.
Background
In the related art, the suspension of an automobile has the function of transmitting all forces and moments acting between a wheel and a vehicle body, and is an assembly for connecting all transmission connecting devices between the vehicle body and the wheel. The suspension swing arm assembly of the automobile is mainly connected with the front auxiliary frame assembly through the front bushing and the rear bushing, and is connected with the steering knuckle and the steering guide mechanism through the ball pin assembly. Because the lower swing arm of the suspension is a main bearing component, the requirement of high strength and rigidity is met, so that the strength requirement of the lower swing arm of the suspension is high, and the manufacturing cost is high.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a lower swing arm structure, which is beneficial to reducing the weight and cost of the lower swing arm, so that the lower swing arm has higher strength and rigidity, the unsprung mass of the suspension system is reduced, the impact load of the suspension system is reduced, and the comfort and stability of the vehicle are improved.
The utility model also provides a suspension system with the lower swing arm structure.
The utility model further provides a vehicle with the suspension system.
The lower swing arm structure comprises a lower swing arm, wherein one end of the lower swing arm in the Y direction is provided with a first installation part hinged with a frame, the lower swing arm is further provided with an installation boss hinged with a stabilizer bar pull rod and a second installation part hinged with a shock absorber, the second installation part is positioned at one side of the installation boss away from the first installation part, and the installation boss and the second installation part are respectively positioned at two sides of the lower swing arm in the Z direction.
According to the lower swing arm structure provided by the embodiment of the utility model, the lower swing arm comprises the first mounting part, the second mounting part and the mounting boss, the first mounting part is hinged with the frame, the second mounting part is hinged with the shock absorber, the mounting boss is hinged with the stabilizer bar pull rod, the mounting boss is positioned between the first mounting part and the second mounting part, and the mounting boss and the second mounting part are respectively positioned at two sides of the lower swing arm along the Z direction, so that the positions of all connecting points of the lower swing arm are reasonably arranged, the weight and the cost of the lower swing arm are reduced, the unsprung mass of a suspension system is reduced, the impact load of the suspension system is reduced, and the comfort and the stability of a vehicle are improved.
According to some embodiments of the utility model, the other end of the lower swing arm in the Y-direction has a ball pin that mates with a knuckle, the ball pin being disposed adjacent to the second mounting portion.
According to some embodiments of the utility model, the lower swing arm comprises a connecting arm main body, and a first connecting arm and a second connecting arm connected to the same end of the connecting arm main body, one ends of the first connecting arm and the second connecting arm, which deviate from the connecting arm main body, extend towards directions away from each other, the mounting boss and the second mounting part are both positioned on the connecting arm main body, the first mounting part comprises a first mounting hole positioned on the first connecting arm and a first mounting rod positioned on the second connecting arm, a first mounting bushing matched with the frame is mounted in the first mounting hole, a second mounting bushing matched with the frame is sleeved outside the first mounting rod, and the first mounting bushing and the second mounting bushing are coaxially arranged and axially in the X direction.
According to some embodiments of the utility model, the second mounting portion includes a second mounting hole located below the lower swing arm, and a third mounting bush matched with the damper is provided in the second mounting hole, and an axis of the third mounting bush extends along the X direction.
According to some embodiments of the utility model, the damper mounting bracket includes a main body portion, and a first leg portion and a second leg portion connected to a lower end of the main body portion, the first leg portion and the second leg portion are respectively connected to two sides of the third mounting bush in the X direction, and are fixedly connected to the third mounting bush through a first bolt.
According to some embodiments of the utility model, the mounting boss is located above the lower swing arm, and a third mounting hole is formed in the mounting boss and hinged to the stabilizer bar pull rod.
According to some embodiments of the utility model, the lower swing arm is provided with a groove with an opening facing to one side of the Z direction.
According to some embodiments of the utility model, the lower swing arm further has a reinforcing bead disposed around the recess.
A suspension system according to an embodiment of the second aspect of the present utility model includes the lower swing arm structure according to the embodiment of the first aspect of the present utility model described above.
According to the suspension system provided by the embodiment of the utility model, the weight and cost of the lower swing arm structure are reduced by arranging the lower swing arm structure, the unsprung mass of the suspension system is reduced, the impact load of the suspension system is reduced, and the comfort and stability of a vehicle are improved.
A vehicle according to an embodiment of a third aspect of the present utility model includes a suspension system according to an embodiment of the above second aspect of the present utility model.
According to the vehicle provided by the embodiment of the utility model, by arranging the suspension system, the unsprung mass of the suspension system is reduced, the impact load of the suspension system can be reduced, and the comfort and stability of the vehicle are improved.
Additional aspects and advantages of the utility model 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 utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a diagram of the cooperation of a lower swing arm structure with a suspension system and a frame according to some embodiments of the present utility model;
FIG. 2 is a diagram of the cooperation of a lower swing arm structure with a suspension system according to some embodiments of the utility model;
FIG. 3 is a schematic diagram of a lower swing arm structure according to some embodiments of the utility model;
fig. 4 is a schematic diagram of a lower swing arm according to some embodiments of the utility model.
Reference numerals:
100. A lower swing arm structure;
10. a lower swing arm;
11. The connecting arm comprises a connecting arm main body, 12, a first connecting arm, 13, a second connecting arm, 14, a first mounting part, 141, a first mounting hole, 142, a first mounting bushing, 143, a first mounting rod, 144, a second mounting bushing, 145, a fixed bracket, 15, a second mounting part, 151, a second mounting hole, 152, a third mounting bushing, 16, a mounting boss, 161, a third mounting hole, 17, a ball pin, 171, a fixed rod, 172, a ball pin mounting seat, 18, a groove, 19 and a reinforcing convex rib;
21. The vehicle comprises a vehicle frame, 22 stabilizer bar, 23 steering knuckles, 24 mounting brackets, 241, a main body part, 242, a first supporting leg part, 243, a second supporting leg part, 244 and a mounting groove.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
A lower swing arm structure 100 according to an embodiment of the present utility model is described below with reference to fig. 1-4.
According to the lower swing arm structure 100 of the first aspect of the embodiment of the present utility model, the lower swing arm structure 100 includes the lower swing arm 10, the lower swing arm 10 has the first mounting portion 14, the first mounting portion 14 is located at one end of the lower swing arm 10 in the Y direction (the Y direction is the left-right direction of the vehicle), the lower swing arm 10 also has the mounting boss 16 and the second mounting portion 15, the second mounting portion 15 is located at one side of the mounting boss 16 away from the first mounting portion 14, and the mounting boss 16 and the second mounting portion 15 are located at both sides of the lower swing arm 10 in the Z direction (the Z direction is the up-down direction of the vehicle), respectively.
The first mounting part 14 is hinged with the frame 21, namely the lower swing arm 10 is hinged with the frame 21, so that the acting force of wheel up-down runout on one end of the frame 21 can be reduced, the transmission of external excitation such as road surface to the vehicle body is reduced, the mounting boss 16 is hinged with the stabilizer bar 22, namely the lower swing arm 10 is hinged with the stabilizer bar 22, the stabilizer bars are connected between the two stabilizer bar 22, the stabilizer bar and the stabilizer bar 22 can keep the vehicle body balanced when the vehicle runs and prevent excessive lateral rolling when the vehicle turns, the second mounting part 15 is hinged with the shock absorber, namely the lower swing arm 10 is hinged with the shock absorber, the comfort and stability of the vehicle are improved, and the vehicle body 21, the stabilizer bar 22, the shock absorber and other structural members are hinged through the lower swing arm 10, so that the stability and the shock absorbing capability of the vehicle are improved when the vehicle runs.
The mounting bosses 16 and the second mounting portions 15 are respectively located on two sides of the lower swing arm 10 along the Z direction, the positions of the mounting bosses 16 and the second mounting portions 15 are reasonably arranged, and then the connection positions of the lower swing arm 10 and the stabilizer bar 22 and the connection positions of the lower swing arm 10 and the shock absorber are reasonably arranged, so that the weight and cost of the lower swing arm 10 are reduced, the lower swing arm 10 has higher strength and rigidity, the unsprung mass of a suspension system is reduced, the impact load of the suspension system is reduced, and the comfort and stability of a vehicle are improved.
According to the lower swing arm structure 100 of the embodiment of the utility model, the lower swing arm 10 comprises the first mounting part 14, the second mounting part 15 and the mounting boss 16, the first mounting part 14 is hinged with the frame 21, the second mounting part 15 is hinged with the shock absorber, the mounting boss 16 is hinged with the stabilizer bar pull rod 22, the mounting boss 16 is positioned between the first mounting part 14 and the second mounting part 15, and the mounting boss 16 and the second mounting part 15 are respectively positioned at two sides of the lower swing arm 10 along the Z direction, and the positions of the connection points of the lower swing arm 10 are reasonably arranged, so that the weight and the cost of the lower swing arm 10 are reduced, the unsprung mass of a suspension system is reduced, the impact load of the suspension system is reduced, and the comfort and the stability of a vehicle are improved.
According to some embodiments of the present utility model, referring to fig. 1 to 4, the other end of the lower swing arm 10 in the Y direction has a ball pin 17 engaged with the knuckle 23, the ball pin 17 is disposed adjacent to the second mounting portion 15, the lower swing arm 10 has a ball pin mount 172 engaged with the ball pin 17, and the ball pin 17 is located in the ball pin mount 172, and a degree of rotational freedom can be achieved with respect to the ball pin mount 172. The ball pin 17 has a fixed rod 171, one end of the fixed rod 171 is connected to the ball pin 17, the other end is connected to the knuckle 23, the knuckle 23 is connected to the wheel, and when the vehicle turns, the knuckle 23 acts on the vehicle and turns the wheel.
According to some embodiments of the present utility model, referring to fig. 1 to 4, the lower swing arm 10 includes a connection arm body 11, a first connection arm 12 and a second connection arm 13, the first connection arm 12 and the second connection arm 13 are connected to the same end of the connection arm body 11, and one ends of the first connection arm 12 and the second connection arm 13 facing away from the connection arm body 11 extend in a direction away from each other, that is, the first connection arm 12 and the second connection arm 13 are disposed at an angle. The mounting boss 16 and the second mounting portion 15 are both located on the connecting arm main body 11, the first mounting portion 14 includes a first mounting hole 141 and a first mounting rod 143, the first mounting hole 141 is located on the first connecting arm 12, the first mounting rod 143 is located on the second connecting arm 13, a first mounting bushing 142 matched with the frame 21 is mounted in the first mounting hole 141, a second mounting bushing 144 matched with the frame 21 is sleeved outside the first mounting rod 143, the first mounting bushing 142 and the second mounting bushing 144 are coaxially arranged, and the axial direction is the X direction (the X direction is the front-rear direction of the vehicle).
The axis of first installation bush 142 and second installation bush 144 extends along X direction for the side direction and the vertical rigidity of first installation bush 142 and second installation bush 144 are big, and vertical rotation rigidity is low, reduce the effort to frame 21 one end of wheel runout from top to bottom, reduce external excitation such as road surface and transmit to the automobile body, effectual improvement road noise and the child noise, promote the NVH performance of vehicle, also promote the life of first installation bush 142 and second installation bush 144 simultaneously, reduce cost of maintenance.
The second bolts penetrate through the central holes of the first mounting bushes 142 and are connected with the frame 21, the second mounting bushes 144 are provided with the fixing supports 145, and the fixing supports 145 and the frame 21 are fixedly connected through the third bolts, so that the lower swing arm 10 and the frame 21 are simple in assembly process and convenient to maintain and dismantle.
For example, the first mounting bushing 142 and the second mounting bushing 144 are each rubber bushings.
According to some embodiments of the present utility model, referring to fig. 1 to 4, the second mounting portion 15 includes a second mounting hole 151, the second mounting hole 151 is located below the lower swing arm 10, and a third mounting bushing 152 matched with the shock absorber is provided in the second mounting hole 151, and the third mounting bushing 152 and the shock absorber together have a dual shock absorbing effect, so that the impact of the suspension system from external load is reduced, and the comfort and stability of the vehicle are improved.
The axis of the third mounting bushing 152 extends along the X direction, so that the third mounting bushing 152 has small longitudinal rotational stiffness and large lateral and vertical stiffness, which is beneficial to reducing the resistance of the suspension system to bounce up and down and improving the lateral and vertical stiffness.
For example, the third mounting bushing 152 is a rubber bushing.
According to some embodiments of the present utility model, referring to fig. 1 to 4, the shock absorber includes a mounting bracket 24, the mounting bracket 24 includes a main body portion 241 and first and second leg portions 242 and 243 connected to a lower end of the main body portion 241, the first and second leg portions 242 and 243 are respectively connected to both sides of the third mounting bushing 152 in the X direction, and the first and second leg portions 242 and 243 are fixedly connected to the third mounting bushing 152 through first bolts, thereby facilitating installation and maintenance of the shock absorber.
The air spring is installed to the top of installing support 24, is formed with mounting groove 244 in the top of installing support 24, and air spring is located mounting groove 244, and first shank 242 and second shank 243 are connected in the below of lower swing arm 10, have reduced the size and the weight of installing support 24 of shock absorber lower extreme, have increased the air spring's of suspension system stroke, have reduced air spring's external diameter correspondingly, have reduced the vertical height of suspension system, have reduced the arrangement space of suspension system to reduce the cost of whole suspension system.
According to some embodiments of the present utility model, referring to fig. 1 to 4, the mounting boss 16 is located above the lower swing arm 10, and a third mounting hole 161 is provided on the mounting boss 16, and the third mounting hole 161 is hinged to the stabilizer bar 22, so as to facilitate connection and fixation of the stabilizer bar 22.
Two wheels at the front or rear of the vehicle are provided with one lower swing arm 10, and one stabilizer bar 22 is correspondingly connected to each lower swing arm 10, namely, two stabilizer bars 22 are arranged, and a stabilizer bar is connected between the two stabilizer bars 22. The stabilizer bar and stabilizer bar 22 can balance the vehicle body while the vehicle is running, preventing excessive lateral roll of the vehicle while turning. The stabilizer bar 22 is connected above the lower swing arm 10, which is advantageous for reducing the length of the arm from the outer end of the stabilizer bar to the installation fixing point, thereby reducing the wire diameter of the stabilizer bar and the stress of the stabilizer bar fixing point.
According to some embodiments of the present utility model, referring to fig. 1 to 4, the lower swing arm 10 has a groove 18 opened toward one side in the Z direction, which is the up-down direction of the vehicle, and the opening of the groove 18 may be upward or downward. By providing the recess 18 on the lower swing arm 10, the weight of the lower swing arm 10 and thus the suspension system can be reduced.
According to some embodiments of the present utility model, referring to fig. 1-4, the lower swing arm 10 further has a reinforcing rib 19 disposed around the groove 18, and the reinforcing rib 19 can improve the rigidity and strength of the entire lower swing arm 10, so that the vehicle obtains better stability and reliability.
The suspension system according to the embodiment of the second aspect of the present utility model includes the lower swing arm structure 100 according to the embodiment of the above-described first aspect of the present utility model.
According to the suspension system provided by the embodiment of the utility model, the lower swing arm structure 100 is arranged, so that the weight and cost of the lower swing arm structure 100 are reduced, the unsprung mass of the suspension system is reduced, the impact load of the suspension system is reduced, and the comfort and stability of a vehicle are improved.
A vehicle according to an embodiment of a third aspect of the present utility model includes a suspension system according to an embodiment of the above second aspect of the present utility model.
According to the vehicle provided by the embodiment of the utility model, by arranging the suspension system, the unsprung mass of the suspension system is reduced, the impact load of the suspension system can be reduced, and the comfort and stability of the vehicle are improved.
In the description of the present specification, reference to the terms "some embodiments," "optionally," "further," or "some examples," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (10)
1. The lower swing arm structure is characterized by comprising a lower swing arm, wherein one end of the lower swing arm along the Y direction is provided with a first installation part hinged with a frame, the lower swing arm is also provided with an installation boss hinged with a stabilizer bar pull rod and a second installation part hinged with a shock absorber, the second installation part is positioned at one side of the installation boss away from the first installation part, and the installation boss and the second installation part are respectively positioned at two sides of the lower swing arm along the Z direction.
2. The lower swing arm structure according to claim 1, wherein the other end of the lower swing arm in the Y direction has a ball pin hinge-fitted with a knuckle, the ball pin being provided adjacent to the second mounting portion.
3. The lower swing arm structure according to claim 1, wherein the lower swing arm includes a connection arm main body and a first connection arm and a second connection arm connected to the same end of the connection arm main body, one ends of the first connection arm and the second connection arm, which deviate from the connection arm main body, extend in directions away from each other, the mounting boss and the second mounting portion are both located on the connection arm main body, the first mounting portion includes a first mounting hole located on the first connection arm and a first mounting rod located on the second connection arm, a first mounting bushing matched with the frame is installed in the first mounting hole, a second mounting bushing matched with the frame is sleeved outside the first mounting rod, and the first mounting bushing and the second mounting bushing are coaxially arranged and axially are in an X direction.
4. The lower swing arm structure according to claim 1, wherein the second mounting portion includes a second mounting hole located below the lower swing arm, the second mounting hole having a third mounting bush fitted with the damper therein, an axis of the third mounting bush extending in the X direction.
5. The lower swing arm structure according to claim 4, wherein the shock absorber includes a mounting bracket including a main body portion and first and second leg portions connected to lower ends of the main body portion, the first and second leg portions being respectively connected to both sides of the third mounting bush in the X direction and fixedly connected to the third mounting bush by first bolts.
6. The lower swing arm structure according to claim 1, wherein the mounting boss is located above the lower swing arm, and a third mounting hole is provided on the mounting boss and hinged to the stabilizer bar pull rod.
7. The lower swing arm structure according to claim 1, wherein the lower swing arm has a groove opening toward one side in the Z direction.
8. The lower swing arm structure according to claim 7, further comprising a reinforcing bead disposed around said recess.
9. A suspension system comprising a lower swing arm structure according to any one of claims 1 to 8.
10. A vehicle comprising the suspension system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422036649.0U CN223001334U (en) | 2024-08-21 | 2024-08-21 | Lower arm structure, suspension system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422036649.0U CN223001334U (en) | 2024-08-21 | 2024-08-21 | Lower arm structure, suspension system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223001334U true CN223001334U (en) | 2025-06-20 |
Family
ID=96052839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422036649.0U Active CN223001334U (en) | 2024-08-21 | 2024-08-21 | Lower arm structure, suspension system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223001334U (en) |
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2024
- 2024-08-21 CN CN202422036649.0U patent/CN223001334U/en active Active
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