CN210821802U - Suspension support installation mechanism and car - Google Patents
Suspension support installation mechanism and car Download PDFInfo
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- CN210821802U CN210821802U CN201921465406.1U CN201921465406U CN210821802U CN 210821802 U CN210821802 U CN 210821802U CN 201921465406 U CN201921465406 U CN 201921465406U CN 210821802 U CN210821802 U CN 210821802U
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- suspension bracket
- longitudinal beam
- mounting hole
- suspension
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Abstract
The utility model discloses a suspension support installation mechanism, including longeron and installation reinforcing part, the installation is strengthened the position and is located the lateral wall of longeron, and the roof of longeron is equipped with the first mounting hole that is used for installing the suspension support, is equipped with the second mounting hole that is used for installing the suspension support in the installation reinforcing part. The engine transmits stress and load evenly to a plurality of mounting points of the vehicle body through the suspension bracket, the main load and the stress are transmitted to the top wall of the whole longitudinal beam through the first mounting hole and are transmitted to the side wall of the longitudinal beam through the second mounting hole, single-point stress and load are small, stress of the whole longitudinal beam is balanced, stability of the suspension bracket is improved, dynamic rigidity of the suspension bracket mounting mechanism is effectively improved to a high level, NVH performance indexes of the vehicle body are met, the problem that dynamic rigidity of a power assembly is insufficient in a middle and high frequency range can be effectively solved through simple reinforcement, and finally interior sound quality of the vehicle is improved. The utility model also discloses an automobile.
Description
Technical Field
The utility model relates to the field of automotive technology, especially, relate to a suspension support installation mechanism and car.
Background
The vibration of the drive train of the vehicle is transmitted to the body of the vehicle via the suspension bracket. In the related art, a suspension bracket is connected to a side member of a vehicle through a plurality of horizontally disposed mounting portions. The mounting area of each mounting part and the longitudinal beam is small, and the dynamic stiffness of the mounting parts is insufficient, so that on one hand, the vibration isolation of the suspension support is insufficient, the vibration of the power assembly cannot be effectively attenuated by the suspension support, and the riding experience of people in the vehicle is influenced; on the other hand, the transmitted Noise of the suspension bracket is increased, so that the Noise response in the vehicle is increased, the NVH (Noise, Vibration and Harshness) performance of the vehicle is reduced, and the experience of passengers is influenced.
With the rapidly expanding demand for the development of three-cylinder engines, almost all platforms of conventional internal combustion engine passenger vehicles are equipped or prepared for three-cylinder machines. The three-cylinder engine can reduce the weight, cost and oil consumption of the whole vehicle, simultaneously provides greater freedom degree for the arrangement of an engine cabin, and provides greater energy absorption space for passive safety. Due to the fact that the inertia moment and the combustion moment of the three-cylinder engine are unbalanced, under a common working condition, sound quality problems such as gurgling sound, boiling water sound, knocking sound and the like occur in the vehicle, the sound quality problems are mainly concentrated in a middle and high frequency range (500 plus 600Hz), the range is not a conventional frequency range of the optimization design of the power assembly structure, and vehicle type sales and brand images are seriously influenced. One of the most unavoidable problems of the three-cylinder engine is NVH performance, and due to the imbalance of inertia moment and combustion moment, great problems are brought to the design of suspension, in-vehicle shaking and rolling, the NVH performance of the vehicle is further reduced, and the requirement of the three-cylinder engine on the dynamic stiffness of a vehicle body suspension mounting point is higher.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a suspension support installation mechanism and car to the dynamic stiffness who solves among the prior art suspension mounting point is low, leads to the problem of the NVH performance reduction of vehicle.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a suspension support installation mechanism, including longeron and installation rib, the installation is strengthened the position and is located the lateral wall of longeron, and the roof of longeron is equipped with the first mounting hole that is used for installing the suspension support, is equipped with the second mounting hole that is used for installing the suspension support in the installation rib.
Furthermore, the suspension bracket mounting mechanism further comprises a wheel cover, the wheel cover is connected with the longitudinal beam, and a third mounting hole for mounting the suspension bracket is formed in the wheel cover.
Furthermore, the installation reinforcing part is provided with a first flanging and a second flanging which are used for being connected with the side wall of the longitudinal beam.
Further, the first flanging and the second flanging are connected with the side wall of the longitudinal beam through bolts, riveted or welded.
Furthermore, a through hole is formed in the first flanging, the first flanging penetrates through the through hole through a bolt to be connected with the side wall of the longitudinal beam, and the second flanging is welded with the side wall of the longitudinal beam.
Further, the opening of the first mounting hole and the opening of the second mounting hole face the same direction.
The utility model also provides a car, including the suspension support and as above suspension support installation mechanism.
Furthermore, the suspension support is provided with a first through hole matched with the first mounting hole and the second mounting hole.
Furthermore, a supporting arm is further arranged on the suspension support, and a second through hole matched with the third mounting hole of the wheel cover is formed in the supporting arm.
Further, the automobile also comprises a vibration isolation pad assembly, and the vibration isolation pad assembly is clamped between the suspension bracket and the longitudinal beam.
The utility model has the advantages that: the mounting mechanism for the suspension bracket comprises a longitudinal beam and a mounting reinforcing part, wherein the mounting reinforcing part is positioned on the side wall of the longitudinal beam, the top wall of the longitudinal beam is provided with a first mounting hole for mounting the suspension bracket, and the mounting reinforcing part is provided with a second mounting hole for mounting the suspension bracket. The engine transmits stress and load evenly to a plurality of mounting points of the vehicle body through the suspension bracket, the main load and the stress are transmitted to the top wall of the whole longitudinal beam through the first mounting hole and are transmitted to the side wall of the longitudinal beam through the second mounting hole, single-point stress and load are small, stress of the whole longitudinal beam is balanced, stability of the suspension bracket is improved, dynamic rigidity of the suspension bracket mounting mechanism is effectively improved to a high level, NVH performance indexes of the vehicle body are met, the problem that dynamic rigidity of a power assembly is insufficient in a middle and high frequency range can be effectively solved through simple reinforcement, and finally interior sound quality of the vehicle is improved.
Drawings
FIG. 1 is a schematic view of a partial structure of an automobile according to the present invention;
fig. 2 is a schematic structural diagram of a suspension bracket mounting mechanism according to the present invention;
fig. 3 is a schematic structural view of the middle mounting reinforcement part of the present invention.
In the figure: the structure comprises longitudinal beams 10, first mounting holes 101, side walls 11 and a top wall 12; the mounting reinforcing part 20, the second mounting hole 201, the first flanging 21, the through hole 211 and the second flanging 22; the suspension bracket 30, the first via hole 301, the support arm 31 and the second via hole 311; the wheel cover 40 and the third mounting hole 401; and a vibration isolator assembly 50.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following detailed description will be made in conjunction with the accompanying drawings and preferred embodiments for the specific embodiments, structures, features and effects of the suspension bracket mounting mechanism and the automobile according to the present invention as follows:
fig. 1 is the local structure schematic diagram of the middle automobile of the present invention, fig. 2 is the structure schematic diagram of the middle suspension bracket mounting mechanism of the present invention, and fig. 3 is the structure schematic diagram of the middle mounting reinforcement of the present invention.
As shown in fig. 1 and 3, the utility model provides a suspension bracket mounting mechanism, including longeron 10 and installation reinforcing part 20, installation reinforcing part 20 is located the lateral wall 11 of longeron 10, and the roof 12 of longeron 10 is equipped with the first mounting hole 101 that is used for installing suspension bracket 30, is equipped with the second mounting hole 201 that is used for installing suspension bracket 30 on the installation reinforcing part 20, and preferably, the opening of first mounting hole 101 and the opening of second mounting hole 201 are towards the same direction, need not install suspension bracket 30 from a plurality of angles when the installation to make things convenient for the installation of suspension bracket 30. In this embodiment, the number of the first mounting holes 101 is two, and the number of the mounting reinforcement portions 20 and the second mounting holes 201 is one, but it is needless to say that in other embodiments, the number of the mounting reinforcement portions 20 and the second mounting holes 201 is also two, and the number is not limited thereto.
In this embodiment, the suspension bracket mounting mechanism further includes a wheel housing 40, the wheel housing 40 is connected to the longitudinal beam 10 (for example, by screw connection, riveting, or welding), and a third mounting hole 401 for mounting the suspension bracket 30 is provided on the wheel housing 40, and as for other structures of the wheel housing 40, reference is made to the prior art, and details are not repeated here.
In this embodiment, the first flange 21 and the second flange 22 for connecting with the side wall 11 of the longitudinal beam 10 are disposed on the installation reinforcing portion 20, the first flange 21 and the second flange 22 are connected, riveted or welded with the side wall 11 of the longitudinal beam 10 through bolts, that is, the first flange 21 is connected, riveted or welded with the side wall 11 of the longitudinal beam 10 through bolts, and the second flange 22 is connected, riveted or welded with the side wall 11 of the longitudinal beam 10 through bolts, and the connection modes of the first flange 21 and the second flange 22 with the longitudinal beam 10 may be the same or different, and are not limited thereto. Of course, in other embodiments, the installation reinforcing portion 20 may be integrally formed with the longitudinal beam 10, but this may result in a larger modification range of the longitudinal beam 10, a larger increase in weight and a larger cost, and the installation reinforcing portion 20 is formed separately from the longitudinal beam 10 and is connected, riveted or welded by bolts, so that the structural design is simple, the development cost of the mold is low, and the modification range is smaller, and the installation reinforcing portion is suitable for the existing longitudinal beam that has been produced. Alternatively, the mounting reinforcement 20 may be welded directly to the side wall 11 of the longitudinal beam 10 by a threaded pipe without flanging, which would result in insufficient connection strength, i.e. lower dynamic stiffness, but this embodiment is not excluded.
In this embodiment, the first flange 21 is provided with a through hole 211, the first flange 21 passes through the through hole 211 through a bolt to be connected with the side wall 11 of the longitudinal beam 10, and the second flange 22 is welded with the side wall 11 of the longitudinal beam 10.
The present embodiment also provides an automobile, as shown in fig. 1, including the suspension bracket 30 and the suspension bracket mounting mechanism as described above.
The suspension bracket 30 is provided with three first via holes 301 matching with the first mounting holes 101 and the second mounting holes 201, in this embodiment, two of the first via holes 301 correspond to the first mounting holes 101, and the other corresponds to the second mounting holes 201, of course, the number of the first via holes 301 may be set according to the specific number of the first mounting holes 101 and the second mounting holes 201, and is not limited thereto.
The suspension bracket 30 is further provided with a support arm 31, the support arm 31 is provided with a second through hole 311 matched with the third mounting hole 401 of the wheel cover 40, the support arm 31 and the wheel cover 40 can be connected through a bolt, a screw or a rivet, and preferably, the support arm 31 and the wheel cover 40 are connected through a bolt.
In this embodiment, the vehicle further includes a vibration isolation pad assembly 50, and the vibration isolation pad assembly 50 is interposed between the suspension bracket 30 and the longitudinal beam 10 to reduce the amount of vibration transmission between the suspension bracket 30 and the longitudinal beam 10.
The utility model discloses the principle of making an uproar falls in the damping is as follows:
the longitudinal beam 10 and the suspension bracket can be assembled30 are seen as two springs in series (i.e. springs stacked one above the other) with different stiffness, the longitudinal beam 10 having a stiffness K1The suspension support 30 has a stiffness K2。
Assuming that the suspension is subjected to an external force F;
the total vibration quantity of the suspended elastic center point is L ═ F/K1+F/K2；
The vibration quantity of the installation point of the vehicle body is L1＝F/K1；
Vibration ratio L1/L＝(F/K1)/(F/K1+F/K2)＝K2/(K1+K2)；
When K is1Far greater than K2Is approximately equal to K2/K1。
Based on the vibration isolation principle, on the premise of ensuring the stability of the vibration isolation system and other limiting conditions, the increase of the dynamic stiffness of the passive side of the suspension bracket 30 or the reduction of the dynamic stiffness of the suspension elastic element is beneficial to reducing the transmission of vibration energy to the vehicle body side (the longitudinal beam 10), so that the vibration reduction and noise reduction effects of the engine are achieved. And the utility model discloses in, through set up installation reinforcing part 20 on the lateral wall 11 at longeron 10, the engine passes through suspension support 30 and transmits atress and load homodisperse to a plurality of mounting points of automobile body, its main load and atress not only transmit on the roof 12 of whole longeron 10 through first mounting hole 101, still transmit on the lateral wall 11 of longeron 10 through second mounting hole 201, single-point atress and load are less, make whole longeron 10 atress balanced, suspension support 30's stability has been improved, effectively promote suspension support installation mechanism's dynamic stiffness to higher level, satisfy automobile body NVH performance index, through simple and easy enhancement, can effectively solve the not enough problem of dynamic stiffness of power assembly at the well high frequency channel, the interior sound quality of car has finally been improved.
In this document, the terms upper, lower, left, right, front, rear and the like are used for defining the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make some changes or modifications within the technical scope of the present invention without departing from the technical scope of the present invention, and the technical contents of the above disclosure can be utilized to make equivalent embodiments, but the technical contents of the present invention are not broken away from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The suspension bracket mounting mechanism is characterized by comprising a longitudinal beam (10) and a mounting reinforcing part (20), wherein the mounting reinforcing part (20) is positioned on a side wall (11) of the longitudinal beam (10), a top wall (12) of the longitudinal beam (10) is provided with a first mounting hole (101) for mounting a suspension bracket (30), and the mounting reinforcing part (20) is provided with a second mounting hole (201) for mounting the suspension bracket (30).
2. The suspension bracket mounting mechanism according to claim 1, further comprising a wheel housing (40), wherein the wheel housing (40) is connected to the longitudinal beam (10), and wherein the wheel housing (40) is provided with a third mounting hole (401) for mounting the suspension bracket (30).
3. The suspension bracket mounting mechanism according to claim 1, wherein the mounting reinforcement portion (20) is provided with a first flange (21) and a second flange (22) for connecting with the side wall (11) of the side member (10).
4. The suspension bracket mounting mechanism according to claim 3, wherein the first flange (21), the second flange (22) and the side wall (11) of the longitudinal beam (10) are bolted, riveted or welded.
5. The suspension bracket mounting mechanism according to claim 4, wherein the first flange (21) is provided with a through hole (211), the first flange (21) is connected with the side wall (11) of the longitudinal beam (10) by a bolt passing through the through hole (211), and the second flange (22) is welded with the side wall (11) of the longitudinal beam (10).
6. The suspension bracket mounting mechanism of claim 1 wherein the opening of the first mounting hole (101) is oriented in the same direction as the opening of the second mounting hole (201).
7. An automobile, characterized by comprising a suspension bracket (30) and a suspension bracket mounting mechanism according to any one of claims 1-6.
8. The vehicle of claim 7, wherein the suspension bracket (30) is provided with a first through hole (301) that is matched with the first mounting hole (101) and the second mounting hole (201).
9. The vehicle of claim 7, wherein the suspension bracket (30) is further provided with a support arm (31), and the support arm (31) is provided with a second through hole (311) which is matched with the third mounting hole (401) of the wheel housing (40).
10. The vehicle of claim 7, further comprising a vibration isolator assembly (50), the vibration isolator assembly (50) being sandwiched between the suspension bracket (30) and the longitudinal beam (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921465406.1U CN210821802U (en) | 2019-09-04 | 2019-09-04 | Suspension support installation mechanism and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921465406.1U CN210821802U (en) | 2019-09-04 | 2019-09-04 | Suspension support installation mechanism and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210821802U true CN210821802U (en) | 2020-06-23 |
Family
ID=71278477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921465406.1U Active CN210821802U (en) | 2019-09-04 | 2019-09-04 | Suspension support installation mechanism and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210821802U (en) |
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2019
- 2019-09-04 CN CN201921465406.1U patent/CN210821802U/en active Active
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