CN209208466U - A kind of 4 wheel driven subtractive arragement construction - Google Patents
A kind of 4 wheel driven subtractive arragement construction Download PDFInfo
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- CN209208466U CN209208466U CN201822060986.8U CN201822060986U CN209208466U CN 209208466 U CN209208466 U CN 209208466U CN 201822060986 U CN201822060986 U CN 201822060986U CN 209208466 U CN209208466 U CN 209208466U
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- subtractive
- suspension
- suspending
- wheel driven
- arragement construction
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Abstract
The utility model relates to automobile suspended fields, specifically disclose a kind of 4 wheel driven subtractive arragement construction comprising the subtractive front-suspension on the front beam of Rear secondary frame for vehicle and the subtractive rear-suspending on rear cross beam；Subtractive front-suspension includes the first subtractive front-suspension and the second subtractive front-suspension being arranged side by side along Y-direction, and subtractive rear-suspending includes the first subtractive rear-suspending and the second subtractive rear-suspending being arranged side by side along Y-direction；The inside of subtractive front-suspension and subtractive rear-suspending is equipped with elastic construction, the torque axis of the elastic center of subtractive rear-suspending close to main reducing gear；Moreover, subtractive front-suspension is arranged along Z-direction, subtractive rear-suspending is along X to arrangement.The 4 wheel driven subtractive arragement construction of the utility model can be improved the NVH performance of four-wheel drive system, is conducive to reduce subtractive dynamic motion amount, improves space utilization rate, solve the problems, such as that NVH performance and fuel tank arrangement space are difficult to take into account.
Description
Technical field
The utility model relates to automobile chassises to suspend technical field, more particularly to a kind of 4 wheel driven subtractive arragement construction.
Background technique
In the current of automobile industry rapid development, people are higher and higher to the riding comfort requirement of automobile, especially exist
Vehicle noise and vibration aspect.The arragement construction of Rear secondary frame for vehicle subtractive suspension and position are to NVH (noise, vibration of four-wheel drive system
It is most important with sound vibration roughness-Noise, Vibration, Harshness) performance, while also affecting fuel tank and vehicle body
Arrangement space.
Suspension system is mounted between engine and automobile chassis, is used to support power assembly and isolation (reduction) is started
Machine vibration energy to chassis (vehicle body) propagate for the purpose of vibrating isolation system.In order to improve NVH performance, it usually needs it is rigid to reduce suspension
Degree, and the motion envelope (dynamic motion amount) that reduction suspension rigidity will lead to subtractive becomes larger, in the feelings that total available space is constant
Need to reduce the volume of fuel tank under condition, to reduce the mileage travelled of automobile；Conversely, to guarantee volume of fuel tank, Shi Biyao
Suspension rigidity is improved, and will cause the NVH performance decline of suspension, the comfort of occupant is reduced, attracts the complaint of client.Therefore existing
The NVH performance and fuel tank arrangement space for having vehicle are often difficult to take into account.
Meanwhile four-wheel drive system common at present, front overhang are set to X to arrangement (i.e. the bushing arranged direction of front-suspension), suspension
Size is small, span is short, and the elastic center of rear-suspending (is also suspension hard spot, the elastic center of suspension is to act on supported material body
On an any direction external force, allow supported material that translational motion can only occur, the point without generating rotation) symmetrical cloth
It sets, the rigidity of two rear-suspendings is all the same and rigidity is larger, causes NVH performance bad, needs to improve system by configuration block
Mode, but complete vehicle weight and cost can be improved again in this way, it is unfavorable for light-weighted development.
Utility model content
In order to solve the problems in above-mentioned background technique, the purpose of the utility model is to provide a kind of 4 wheel driven subtractive arrangements to tie
Structure can be improved the NVH performance of four-wheel drive system, is conducive to reduce subtractive dynamic motion amount, improves space utilization rate, solves
NVH performance and fuel tank arrangement space are difficult to the problem of taking into account.
Based on this, the utility model provides a kind of 4 wheel driven subtractive arragement construction comprising set on the preceding cross of Rear secondary frame for vehicle
Subtractive front-suspension on beam and the subtractive rear-suspending on rear cross beam；The subtractive front-suspension includes being arranged side by side along Y-direction
First subtractive front-suspension and the second subtractive front-suspension, the subtractive rear-suspending include the first subtractive rear overhang being arranged side by side along Y-direction
It sets and the second subtractive rear-suspending；
The inside of the subtractive front-suspension and the subtractive rear-suspending is equipped with elastic construction, the bullet of the subtractive rear-suspending
Torque axis of the property center close to main reducing gear；The subtractive front-suspension arranges that the subtractive rear-suspending is along X to arrangement along Z-direction.
Preferably, the elastic center of the subtractive rear-suspending is according to the first subtractive rear-suspending and described second
The relative size of the rigidity of subtractive rear-suspending is adjusted.
Preferably, the span between the first subtractive rear-suspending and the second subtractive rear-suspending is greater than
200mm。
Preferably, the top of the subtractive front-suspension is equipped with the limit plate for covering the elastic construction.
Preferably, the 4 wheel driven subtractive arragement construction further includes being installed on the subtractive front-suspension and the subtractive
Differential mechanism between rear-suspending, the rear end of the shell of the differential mechanism are equipped with reserved installation point.
Preferably, it is connected between the first subtractive front-suspension and the second subtractive front-suspension for support
The front-suspension trailing arm of differential mechanism, the both ends of the front-suspension trailing arm are bolted with the subtractive front-suspension respectively.
Preferably, the span between the first subtractive front-suspension and the second subtractive front-suspension is greater than
200mm。
Preferably, the limit inner panel for accommodating the elastic construction is arranged in the subtractive front-suspension；Institute
Stating elastic construction is rubber bushing.
Preferably, the subtractive front-suspension is welded on front beam.
Preferably, the X of the first subtractive front-suspension and the second subtractive front-suspension relative to Rear secondary frame for vehicle
Front beam is set to substantially symmetrical about its central axis；The first subtractive rear-suspending and the second subtractive rear-suspending are relative to Rear secondary frame for vehicle
X be set to rear cross beam to substantially symmetrical about its central axis.
Compared to the prior art, the utility model has the beneficial effects that:
The 4 wheel driven subtractive arragement construction of the utility model including the subtractive front-suspension being set on front beam and is set to rear cross beam
Upper subtractive rear-suspending, inside be equipped with elastic construction, by by subtractive front-suspension along Z-direction arrange, using subtractive front-suspension in Z
The feature softer to rigidity, can be improved NVH performance；And it is biggish using radial rigidity by subtractive rear-suspending along X to arrangement
Characteristic can preferably play position-limiting action, reduce the dynamic motion amount of subtractive, and space can be conceded for fuel tank, improves space
Utilization rate solves the problems, such as that NVH performance and fuel tank arrangement space are difficult to take into account；Moreover, the parameter according to main reducing gear calculates
Torque axis position, by the elastic center of subtractive rear-suspending close to main reducing gear torque axis be arranged, convenient for obtaining Oscillation of Solutions
Coupling, can so reduce the dynamic motion amount of subtractive, to further increase NVH performance, be conducive to hardware and software platform production.
Detailed description of the invention
Fig. 1 is a kind of top view of 4 wheel driven subtractive arragement construction provided by the embodiment of the utility model；
Fig. 2 is the partial enlarged view of differential mechanism position in Fig. 1；
Fig. 3 be in Fig. 1 A-A to cross-sectional view；
Fig. 4 is the schematic diagram of front-suspension trailing arm provided by the embodiment of the utility model；
Fig. 5 is the partial enlarged view of the subtractive rear-suspending in Fig. 1 main view.
Wherein, 1, front beam；10, subtractive front-suspension；11, the first subtractive front-suspension；12, the second subtractive front-suspension；13, preceding
Suspension bracket；131, bolt；14, limit plate；141, rubber bushing；15, inner panel is limited；2, rear cross beam；20, subtractive rear-suspending；
21, the first subtractive rear-suspending；22, the second subtractive rear-suspending；3, differential mechanism；31, installation point is reserved；4, torque axis；B, span.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
Referring to Figure 1, it is schematically shown that the 4 wheel driven subtractive arragement construction of the utility model, the structure are set to rear secondary vehicle
On frame comprising subtractive front-suspension 10 and subtractive rear-suspending 20, for installing between subtractive front-suspension 10 and subtractive rear-suspending 20
Differential mechanism 3.Wherein, subtractive front-suspension 10 is set on the front beam 1 of Rear secondary frame for vehicle and arranges along Z-direction, and subtractive rear-suspending 20 is set to
To arrangement on the rear cross beam 2 of Rear secondary frame for vehicle and along X.Herein it should be noted that according to vehicle coordinate system definition, before vehicle
Rear direction is X to left and right directions is Y-direction, and up and down direction is Z-direction.
Specifically, subtractive front-suspension 10 includes the first subtractive front-suspension 11 being arranged side by side along Y-direction and the second subtractive front overhang
12 are set, subtractive rear-suspending 20 includes the first subtractive rear-suspending 21 and the second subtractive rear-suspending 22 being arranged side by side along Y-direction, moreover,
The inside of subtractive front-suspension 10 and the subtractive rear-suspending 20 is equipped with elastic construction, it is often more important that, according to main reducing gear
Parameter calculates the position of torque axis, and the torque axis by the elastic center of subtractive rear-suspending 20 close to main reducing gear is arranged, and is convenient for
Vibration uncoupling, can so reduce the dynamic motion amount of subtractive, to improve NVH performance, be conducive to hardware and software platform and produce.
4 wheel driven subtractive arragement construction based on above-mentioned technical characteristic utilizes difference by arranging subtractive front-suspension 10 along Z-direction
Subtract the feature softer in Z-direction rigidity of front-suspension 10, NVH performance can be improved.Subtractive rear-suspending 20 is utilized into diameter to arrangement along X
To the biggish characteristic of rigidity, position-limiting action can be preferably played, reduces the dynamic motion amount of subtractive, sky can be conceded for fuel tank
Between, improve space utilization rate.Meanwhile the theoretical position of torque axis is calculated according to the parameter of the main reducing gear of subtractive, then pass through
The relative size for adjusting the rigidity of the first subtractive rear-suspending 21 and the rigidity of the second subtractive rear-suspending 22, so that subtractive rear-suspending 20
Elastic center close to main reducing gear torque axis.In the present embodiment, such as by adjusting the first subtractive rear-suspending 21 and
The hardness of elastic construction in two subtractive rear-suspendings 22, so that the rigidity of the first subtractive rear-suspending 21 and the second subtractive rear-suspending 22
Rigidity it is not identical.More specifically, elastic construction uses rubber bushing 141, by changing the sizing material hardness and structure of rubber, make
Obtaining the first subtractive rear-suspending 21 and the second subtractive rear-suspending 22 has different suspension rigidity.Illustratively, according to main reducing gear
Parameter calculate torque axis 4 as shown in Figure 1, with continued reference to shown in Fig. 5, by the stiffness equivalent of the first subtractive rear-suspending 21
At the second subtractive rear-suspending 22 is greater than, so that the elastic center of subtractive rear-suspending 20 is biased to the first subtractive rear-suspending 21, i.e. subtractive
The elastic center of rear-suspending 20 deviates to the left, rather than is arranged symmetrically, so that the elastic center of subtractive rear-suspending 20 is close
Torque axis 4 shown in Fig. 1 are arranged close to torque axis 4 from there through by the elastic center of subtractive rear-suspending 20, are more convenient for obtaining
The vibration uncoupling of mode so that the mode of four-wheel drive system is more stable, and then can be improved the NVH performance of four-wheel drive system.Herein
It should be noted that torque axis 4 shown in Fig. 1, are intended merely to facilitate description " the close master of the elastic center of subtractive rear-suspending 20
This technical characteristic of the torque axis of retarder ", and in other embodiments, the position of torque axis may also calculate other arrangements
Form is not only defined in setting direction shown in Fig. 1.
NVH can further be promoted by the span B of reasonable design subtractive rear-suspending 20 as preferred embodiment
Performance.It is shown in Figure 2, according to formula torque T=suspension quantity × suspension stress F × span B*1/2, due to the torsion of engine
Square T value is certain, under same torque condition, the value of span B is increased, the stress of subtractive rear-suspending 20 can then reduce, thus have
Conducive to promotion NVH performance.Verified by test data, by between the first subtractive rear-suspending 21 and the second subtractive rear-suspending 22 across
It is set greater than 200mm away from B, the span B of subtractive rear-suspending 20 increases about one times, so that the stress of subtractive rear-suspending 20 is reduced to
Existing 50%, so that it is guaranteed that NVH performance.Meanwhile by between the first subtractive front-suspension 11 and the second subtractive front-suspension 12 across
It is greater than 200mm away from being also provided with into, to ensure that the stress of subtractive front-suspension 10 reduces half, and then further promotes NVH performance.
Preferably, in the present embodiment, referring to Fig. 3, the top of subtractive front-suspension 10 is equipped with for covering the elasticity knot
The limit plate 14 of structure, for subtractive front-suspension 10 due to arranging along Z-direction, the setting of limit plate 14 can limit the pole of subtractive movement Z-direction
Extreme position limits over-large displacement, to reduce the dynamic motion amount of subtractive.Further, it is arranged with and is used in subtractive front-suspension 10
The limit inner panel 15 for accommodating elastic construction is able to the extreme position of limitation subtractive movement by limit inner panel 15 and limit plate 14,
To reduce the dynamic motion amount of subtractive, be conducive to promote NVH performance.
Since when vehicle is expanded, subtractive rear-suspending 20 is limited to the width put in suspension swing arm, and Wheel centre distance is narrower, left
The width put in right suspension lower swing arm is narrower, causes 20 arrangement space of subtractive rear-suspending insufficient, therefore the position suspended needs to adjust
It is whole, it cannot be shared so as to cause subtractive shell.In the present embodiment, in order to overcome the problems, such as that subtractive shell cannot share, such as
Shown in Fig. 2, it is equipped with reserved installation point 31 in the rear end of the shell of differential mechanism 3, when needing to adjust suspended position, after shell
The reserved installation point 31 at end installs differential mechanism 3 to suspension adjusted, can be direct when being extended to small wheelspan vehicle
Differential shell is continued to use, modification product is not needed, improves the general rate of components, substantially reduces components exploitation and verifying
Period has been greatly reduced the cost of design alteration.
More particularly, referring to fig. 4, front-suspension is connected between the first subtractive front-suspension 11 and the second subtractive front-suspension 12
Trailing arm 13, front-suspension trailing arm 13 are used for support differential mechanism 3, and the both ends of front-suspension trailing arm 13 pass through spiral shell with subtractive front-suspension 10 respectively
Bolt 131 connects.
Subtractive front-suspension 10 in above-described embodiment is welded on front beam 1, realizes subtractive front-suspension 10 and front beam 1
It is fixedly connected, subtractive rear-suspending 20 is along X to being arranged in rear cross beam 2.Preferably, before the first subtractive front-suspension 11 and the second subtractive
Suspension 12 is set to front beam 1 to substantially symmetrical about its central axis relative to the X of Rear secondary frame for vehicle, after the first subtractive rear-suspending 21 and the second subtractive
Suspension 22 is set in rear cross beam 2 relative to the X of Rear secondary frame for vehicle to substantially symmetrical about its central axis.
In conclusion the 4 wheel driven subtractive arragement construction of the utility model is utilized by arranging subtractive front-suspension along Z-direction
The subtractive front-suspension feature softer in Z-direction rigidity, can be improved NVH performance, and the elastic center of subtractive rear-suspending is subtracted close to master
The torque axis of fast device is arranged, and can so reduce the dynamic motion amount of subtractive, improves NVH performance, solves NVH performance and fuel tank
Arrangement space is difficult to the problem of taking into account, moreover, being equipped with reserved installation point in the rear end of the shell of differential mechanism, is being extended to small wheelspan
When vehicle, differential shell can be directly continued to use, the general rate for improving components was both mentioned from there through the above design optimization
High NVH performance, reduces the motion envelope of subtractive, improves space utilization rate, while also improving the generalization of components
Rate.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
1. a kind of 4 wheel driven subtractive arragement construction, which is characterized in that the subtractive front-suspension on the front beam including being set to Rear secondary frame for vehicle
With the subtractive rear-suspending being set on rear cross beam；The subtractive front-suspension include along Y-direction be arranged side by side the first subtractive front-suspension and
Second subtractive front-suspension, the subtractive rear-suspending include the first subtractive rear-suspending and the second subtractive rear overhang being arranged side by side along Y-direction
It sets；
The inside of the subtractive front-suspension and the subtractive rear-suspending is equipped with elastic construction, in the elasticity of the subtractive rear-suspending
Torque axis of the heart close to main reducing gear；The subtractive front-suspension arranges that the subtractive rear-suspending is along X to arrangement along Z-direction.
2. 4 wheel driven subtractive arragement construction according to claim 1, which is characterized in that the elastic center of the subtractive rear-suspending
It is adjusted according to the relative size of the rigidity of the first subtractive rear-suspending and the second subtractive rear-suspending.
3. 4 wheel driven subtractive arragement construction according to claim 1, which is characterized in that the first subtractive rear-suspending and described
Span between second subtractive rear-suspending is greater than 200mm.
4. 4 wheel driven subtractive arragement construction according to claim 1, which is characterized in that the top of the subtractive front-suspension is equipped with
For covering the limit plate of the elastic construction.
5. 4 wheel driven subtractive arragement construction according to claim 1, which is characterized in that the 4 wheel driven subtractive arragement construction is also wrapped
The differential mechanism being installed between the subtractive front-suspension and the subtractive rear-suspending is included, the rear end of the shell of the differential mechanism is equipped with
Reserved installation point.
6. 4 wheel driven subtractive arragement construction according to claim 5, which is characterized in that the first subtractive front-suspension and described
Be connected with the front-suspension trailing arm for support differential mechanism between second subtractive front-suspension, the both ends of the front-suspension trailing arm respectively with
The subtractive front-suspension is bolted.
7. 4 wheel driven subtractive arragement construction according to claim 1, which is characterized in that the first subtractive front-suspension and described
Span between second subtractive front-suspension is greater than 200mm.
8. 4 wheel driven subtractive arragement construction according to any one of claims 1 to 7, which is characterized in that the subtractive front-suspension
Inside it is arranged with the limit inner panel for accommodating the elastic construction；The elastic construction is rubber bushing.
9. 4 wheel driven subtractive arragement construction according to claim 8, which is characterized in that the subtractive front-suspension is welded in preceding cross
Liang Shang.
10. 4 wheel driven subtractive arragement construction according to claim 1, which is characterized in that the first subtractive front-suspension and institute
The X that the second subtractive front-suspension is stated relative to Rear secondary frame for vehicle is set to front beam to substantially symmetrical about its central axis；The first subtractive rear-suspending
X with the second subtractive rear-suspending relative to Rear secondary frame for vehicle is set to rear cross beam to substantially symmetrical about its central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060986.8U CN209208466U (en) | 2018-12-07 | 2018-12-07 | A kind of 4 wheel driven subtractive arragement construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822060986.8U CN209208466U (en) | 2018-12-07 | 2018-12-07 | A kind of 4 wheel driven subtractive arragement construction |
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| CN209208466U true CN209208466U (en) | 2019-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398066A (en) * | 2018-12-07 | 2019-03-01 | 广州汽车集团股份有限公司 | A kind of 4 wheel driven subtractive arragement construction |
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2018
- 2018-12-07 CN CN201822060986.8U patent/CN209208466U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109398066A (en) * | 2018-12-07 | 2019-03-01 | 广州汽车集团股份有限公司 | A kind of 4 wheel driven subtractive arragement construction |
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