CN112477987B - Suspension supporting structure and passenger car - Google Patents
Suspension supporting structure and passenger car Download PDFInfo
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- CN112477987B CN112477987B CN201910860689.8A CN201910860689A CN112477987B CN 112477987 B CN112477987 B CN 112477987B CN 201910860689 A CN201910860689 A CN 201910860689A CN 112477987 B CN112477987 B CN 112477987B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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Abstract
The invention relates to a suspension support structure and a passenger car. The suspension supporting structure comprises a suspension seat used for being fixed on a whole vehicle framework, the suspension supporting structure comprises a reinforcing beam, two ends of the reinforcing beam are used for being fixed with the whole vehicle framework, a supporting beam which forms a closed framework together with the reinforcing beam and the whole vehicle framework is fixed on the reinforcing beam, the suspension seat is used for being close to one end, arranged in the middle of the whole vehicle framework, of the suspension seat in the left-right direction and is used for being used for fixing a frame fixed end on the whole vehicle framework, and the other end, arranged in the middle of the whole vehicle framework, of the suspension seat is used for being far away from the reinforced fixed end fixedly connected with the closed framework. The stiffening beam is arranged, so that the stiffening beam and the whole vehicle framework form a closed framework, and the two ends of the suspension seat in the left and right directions are respectively fixed on the whole vehicle framework and the closed framework, so that the suspension of a front suspension is avoided, and the dynamic stiffness of the suspension support structure is improved.
Description
Technical Field
The invention relates to a suspension support structure and a passenger car.
Background
At present, the whole framework of the passenger car is the most important part of all system parts of the passenger car, and supports all assembly systems of the passenger car to enable the assembly systems to be integrated. The whole bus frame is generally divided into a bus body frame and a bus frame, wherein the bus body frame is mainly provided with parts such as internal and external ornaments, and the bus frame is mainly provided with a power assembly, a transmission system, a suspension system and the like. In the suspension system, a suspension air bag and a shock absorber are connected with a vehicle body framework through a suspension support structure, the suspension support structure connects the suspension and the framework into a whole, and the suspension support structure comprises a shock absorber support structure and an air bag support structure. When the whole vehicle runs, the vibration excitation of the road surface is transmitted to the vehicle body through the suspension, which can cause the problem of vibration noise in the vehicle. In the shock absorber supporting structure in the prior art, due to the requirement of installation space of the air bag and the shock absorber, a cantilever structure is often adopted in the design of a suspension supporting structure, so that the problem of prominent vibration noise in a vehicle is caused due to insufficient dynamic stiffness of the air bag supporting structure and the shock absorber supporting structure.
Disclosure of Invention
The invention aims to provide a suspension support structure with higher dynamic stiffness, and in addition, the invention also aims to provide a passenger car with the suspension support structure with higher dynamic stiffness.
In order to achieve the purpose, the suspension support structure has the technical scheme that: the suspension supporting structure comprises a suspension seat used for being fixed on a whole vehicle framework, the suspension supporting structure comprises a reinforcing beam, two ends of the reinforcing beam are used for being fixed with the whole vehicle framework, a supporting beam which forms a closed framework together with the reinforcing beam and the whole vehicle framework is fixed on the reinforcing beam, the suspension seat is used for being close to one end, arranged in the middle of the whole vehicle framework, of the suspension seat in the left-right direction and is used for being used for fixing a frame fixed end on the whole vehicle framework, and the other end, arranged in the middle of the whole vehicle framework, of the suspension seat is used for being far away from the reinforced fixed end fixedly connected with the closed framework.
The invention has the beneficial effects that: the stiffening beam is arranged, so that the stiffening beam and the whole vehicle framework form a closed framework, and the two ends of the suspension seat in the left and right directions are respectively fixed on the whole vehicle framework and the closed framework, so that the suspension of a front suspension is avoided, and the dynamic stiffness of the suspension support structure is improved.
Further, in order to facilitate the installation of the suspension base, the reinforced fixed end of the suspension base is fixed on the reinforced beam.
Furthermore, in order to strengthen the suspension support structure and reduce the weight of the suspension support structure, the suspension seat comprises an air bag support plate and support vertical plates fixed on the air bag support plate and used for supporting the shock absorber, at least two support vertical plates are arranged at intervals, the suspension support structure comprises a shock absorber seat fixed with at least two adjacent support vertical plates, and the shock absorber seat is fixed at the strengthening fixed end of the suspension seat.
In order to further strengthen the suspension support structure, a reinforcing rib plate fixed with the two supporting vertical plates is arranged in the interval between the two adjacent supporting vertical plates, and the bottom of the reinforcing rib plate is fixedly connected with the air bag support plate, so that the two adjacent supporting vertical plates, the reinforcing rib plate between the two adjacent supporting vertical plates and the air bag support plate form a three-dimensional support structure.
In order to spatially support the airbag supporting plate, the reinforcing rib plate is a V-shaped rib plate, the V-shaped rib plate extends in the front-back direction, and the front end and the back end of the V-shaped rib plate are respectively fixed on the two supporting vertical plates.
In order to improve the overall stability of the suspension support structure, the support vertical plate comprises a top support part fixed at the top of the air bag support plate and a vertical support part which is positioned at one side of the air bag support plate far away from the middle of the whole vehicle framework in the left-right direction, the top support part and the vertical support part are arranged in an L shape, and the damper seat is fixed on the vertical support part.
In order to further improve the stability of the suspension support structure, the suspension seat further comprises a shock absorber reinforcing plate fixed with the vertical supporting parts of the two adjacent vertical supporting plates, one of two plate surfaces of the shock absorber reinforcing plate is fixed with the vertical supporting part, the other one of the two plate surfaces of the shock absorber reinforcing plate is fixed with the end surface of the airbag supporting plate far away from the middle end of the whole vehicle framework in the left-right direction, and the top of the shock absorber reinforcing plate is fixedly connected with the reinforcing beam.
In order to improve the supporting effect to the gasbag, the gasbag backup pad is the U-shaped board, and the terminal surface that the middle one end of whole car skeleton was kept away from to the gasbag backup pad on left and right sides direction is the U-shaped terminal surface, the shock absorber reinforcing plate is fixed with the U-shaped terminal surface of gasbag backup pad.
In order to fix the supporting vertical plate conveniently, a clamping groove clamped behind the stiffening beam and fixedly welded with the stiffening beam is formed in the upper end of the supporting vertical plate.
The technical scheme of the passenger car comprises the following steps: the passenger train includes whole car skeleton and sets up the suspension bearing structure on whole car skeleton, suspension bearing structure is including being used for fixing the suspension seat on whole car skeleton, suspension bearing structure includes that both ends are used for the stiffening beam fixed with whole car skeleton, be fixed with on the stiffening beam with whole car skeleton formation closed frame's a supporting beam, the suspension seat is used for being close to the frame stiff end of fixing on whole car skeleton near the middle one end that sets up of whole car skeleton about the orientation, the other end that is used for keeping away from to set up in the middle of the whole car skeleton is for the enhancement stiff end with closed frame fixed connection.
The invention has the beneficial effects that: the stiffening beam is arranged, so that the stiffening beam and the whole vehicle framework form a closed framework, and the two ends of the suspension seat in the left and right directions are respectively fixed on the whole vehicle framework and the closed framework, so that the suspension of a front suspension is avoided, and the dynamic stiffness of the suspension support structure is improved.
Further, in order to facilitate the installation of the suspension base, the reinforced fixed end of the suspension base is fixed on the reinforced beam.
Furthermore, in order to strengthen the suspension support structure and reduce the weight of the suspension support structure, the suspension seat comprises an air bag support plate and support vertical plates fixed on the air bag support plate and used for supporting the shock absorber, at least two support vertical plates are arranged at intervals, the suspension support structure comprises a shock absorber seat fixed with at least two adjacent support vertical plates, and the shock absorber seat is fixed at the strengthening fixed end of the suspension seat.
In order to further strengthen the suspension support structure, a reinforcing rib plate fixed with the two supporting vertical plates is arranged in the interval between the two adjacent supporting vertical plates, and the bottom of the reinforcing rib plate is fixedly connected with the air bag support plate, so that the two adjacent supporting vertical plates, the reinforcing rib plate between the two adjacent supporting vertical plates and the air bag support plate form a three-dimensional support structure.
The reinforcement rib is a V-shaped rib for spatially supporting the airbag support panel.
In order to improve the overall stability of the suspension support structure, the support vertical plate comprises a top support part fixed at the top of the air bag support plate and a vertical support part which is positioned at one side of the air bag support plate far away from the middle of the whole vehicle framework in the left-right direction, the top support part and the vertical support part are arranged in an L shape, and the damper seat is fixed on the vertical support part.
In order to further improve the stability of the suspension support structure, the suspension seat further comprises a shock absorber reinforcing plate fixed with the vertical supporting parts of the two adjacent vertical supporting plates, one of two plate surfaces of the shock absorber reinforcing plate is fixed with the vertical supporting part, the other one of the two plate surfaces of the shock absorber reinforcing plate is fixed with the end surface of the airbag supporting plate far away from the middle end of the whole vehicle framework in the left-right direction, and the top of the shock absorber reinforcing plate is fixedly connected with the reinforcing beam.
In order to improve the supporting effect to the gasbag, the gasbag backup pad is the U-shaped board, and the terminal surface that the middle one end of whole car skeleton was kept away from to the gasbag backup pad on left and right sides direction is the U-shaped terminal surface, the shock absorber reinforcing plate is fixed with the U-shaped terminal surface of gasbag backup pad.
In order to fix the supporting vertical plate conveniently, a clamping groove clamped behind the stiffening beam and fixedly welded with the stiffening beam is formed in the upper end of the supporting vertical plate.
Drawings
FIG. 1 is a schematic structural view of a vehicle frame and suspension support structure in an exemplary embodiment of a passenger vehicle according to the present invention;
FIG. 2 is a schematic view of a partial structure of a vehicle frame in an embodiment of the passenger vehicle of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic structural view of a suspension support structure in an exemplary embodiment of a passenger vehicle according to the present invention;
FIG. 5 is an exploded view of a suspension support structure in an exemplary embodiment of a passenger vehicle according to the present invention;
FIG. 6 is a graph comparing the results of dynamic stiffness tests of the airbag attachment points of a suspension support structure in an embodiment of a passenger vehicle of the present invention with prior art suspension support structures;
FIG. 7 is a graph comparing displacement per unit force of airbag attachment point for a suspension support structure in an exemplary embodiment of a passenger vehicle according to the present invention and a prior art suspension support structure;
FIG. 8 is a graph comparing the results of dynamic stiffness tests of the shock absorber attachment points of a suspension support structure in an exemplary embodiment of a passenger vehicle of the present invention and a prior art suspension support structure;
FIG. 9 is a graph comparing the displacement per unit force of the shock absorber attachment points of a suspension support structure in an exemplary embodiment of a passenger vehicle of the present invention and a prior art cantilevered suspension support structure;
in the figure: 1. the structure comprises a supporting beam, 2, an air bag supporting plate, 21, an air bag mounting hole, 22, a horizontal mounting plate, 23, a vertical reinforcing plate, 231, an arc-shaped inner notch, 3, a supporting vertical plate, 31, a clamping groove, 32, a top supporting part, 33, a vertical supporting part, 331, a positioning hole, 4, a reinforcing rib plate, 5, a reinforcing beam, 6, a damper seat, 61, a damper mounting hole, 7, a damper reinforcing plate, 71, an avoiding notch, 72, a reinforcing beam fixing part, 8, an L-shaped reinforcing sealing plate, 81, a first reinforcing section, 82, a second reinforcing section, 9, a whole vehicle framework, 10 and a suspension supporting structure.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 3, the passenger car of the present invention includes a whole car frame 9 and a suspension support structure 10 fixed on the whole car frame 9, for the suspension support structure 10, the stiffness characteristic of the system motion under the action of external force (the road excitation is transmitted to the suspension support structure through the airbag/damper) changes with the change of the input excitation frequency, and the stress condition of the whole suspension support structure is as follows:
mẍ+cxẋ+kx=f；
wherein the excitation force is: f = FejwtThe corresponding displacement is: x = X0ej（wt-ψ）；
Through the processing of the stress system equation, the rigidity of the system is kd = f/x = (k-mw 2) + jcw;
in the above formula: m is mass, c is damping, k is stiffness, F is excitation force, x is displacement, ẋ is velocity, ẍ is acceleration, F is amplitude of excitation force, e is dampingjwtIs an exponential expression of the excitation force, j is a variable, w is a frequency, t is a time, X0Is the amplitude of the displacement, ej（wt-ψ）Is an exponential expression of the displacement, psi is the phase, kdDynamic stiffness.
Stiffness k of the system at this timedIs a function of the excitation frequency w, i.e. the stiffness varies with the excitation frequency and is not a fixed value, the stiffness k being the casedCalled dynamic stiffness, and the dynamic stiffness k can be known by a dynamic stiffness formuladThe larger the displacement x under the fixed excitation force f is, the smaller the vibration energy Q (f x) transmitted to the vehicle body is, so that the vibration and the deformation of the whole vehicle framework 9 are reduced, the problems of the low-frequency rumbling caused by the friction abnormal sound of the interior trim and the vibration of the framework caused by the deformation of the framework in the vehicle are effectively avoided, and the comfort of the whole vehicle is ensured.
The suspension support structure 10 is a suspension support structure with high dynamic stiffness, the suspension of the suspension support structure is avoided by designing a square closed structure, and a reinforcing rib plate and sealing plate combined structure is designed at a key part, so that the dynamic stiffness of the air bag and shock absorber support structure is improved in a wide frequency range, the problem of insufficient dynamic stiffness of the suspension support structure 10 is solved, the optimal attenuation of road excitation is realized, and the comfort performance of the whole vehicle is ensured. The suspension support structure 10 will be described in detail below.
As shown in fig. 4 and 5, the suspension support structure 10 includes a suspension base and a reinforcing beam 5 having two ends fixed to the vehicle frame 9, the reinforcing beam 5 is fixed with a supporting beam 1, the reinforcing beam 5, the supporting beam 1 and the vehicle frame 9 form a closed frame shaped like a Chinese character kou, and the closed frame shaped like a Chinese character kou ensures the basic rigidity of the suspension support structure 10, thereby avoiding the cantilever connection of the suspension support structure 10. One end of the suspension frame seat, which is arranged near the middle of the whole vehicle framework 9 in the left-right direction, is a frame fixed end fixed on the whole vehicle framework 9, the other end of the suspension frame seat, which is far away from the middle of the whole vehicle framework 9, is a reinforced fixed end, and the reinforced fixed end is fixed on the reinforcing beam 5. In other embodiments, the reinforced fixing end can be fixed on the support beam. The stiffening beam 5 and the support beam 1 in the embodiment are both of a profile structure, specifically, 40 × 2.0 profile pipes (the width and the height are 40mm, and the thickness is 2mm), one end of the support beam 1 is welded and fixed on the whole vehicle framework 9, the other end of the support beam is welded and fixed on the stiffening beam 5, and two ends of the stiffening beam 5 are welded and fixed on the whole vehicle framework 9.
The suspension seat comprises an air bag supporting plate 2 for mounting an air bag and a damper seat 6 for mounting a damper, wherein the air bag supporting plate 2 is provided with an air bag mounting hole 21 for mounting the air bag, and the air bag is mounted below the air bag supporting plate 2. In order to strengthen the suspension support structure, two supporting vertical plates 3 for supporting the shock absorber are fixed on the air bag supporting plate 2, the two supporting vertical plates 3 are arranged at intervals in the front and back direction, and the shock absorber seat 6 is fixed in the interval between the two supporting vertical plates 3. The shock absorber seat 6 is provided with a shock absorber mounting hole 61, and the shock absorber is arranged below the shock absorber seat 6. In other embodiments, the number of the supporting vertical plates may be increased as needed, for example, the number of the supporting vertical plates may be at least three, wherein the damper seat is fixed between two of the supporting vertical plates, and of course, the damper seat may also be fixed with a plurality of supporting vertical plates at the same time.
Gasbag backup pad 2 is the U-shaped board, wherein the terminal surface at gasbag backup pad 2 both ends is the U-shaped terminal surface in the left and right sides orientation, gasbag backup pad 2 is including horizontal mounting plate 22 at the top and the vertical reinforcing plate 23 that is in both sides around horizontal mounting plate 22, two vertical reinforcing plate 23 parallel arrangement and structure are the same, be equipped with notch 231 in the arc on the vertical reinforcing plate 23, wherein from keeping away from whole car skeleton 9 in the middle of one end to being close to whole car skeleton 9 in the direction of one end, the cross-section grow gradually of vertical reinforcing plate 23. Vertical reinforcing plate 23 optimizes through CAE and carries out structural design, has both guaranteed support intensity, realizes the lightweight again. The end face of the air bag supporting plate 2 close to the middle of the whole vehicle framework 9 in the left-right direction is fixed on the whole vehicle framework 9, and the other end face far away from the middle of the whole vehicle framework 9 in the left-right direction is fixed with a damper reinforcing plate 7. In other embodiments, the gasbag backup pad can be the flat board, sets up special angle type connecting piece and fixes gasbag backup pad and whole car skeleton near the frame stiff end of suspension seat, and of course, the gasbag backup pad also can be the L shaped plate, including horizontal plate and vertical board, one side face and whole car skeleton fixed connection of vertical board. In other embodiments, the surface of the vertical reinforcing plate may be square, and the cross section of the vertical reinforcing plate is unchanged in the left-right direction.
In this embodiment, the supporting vertical plate 3 includes a top supporting portion 32 fixed on the top horizontal mounting plate 22 of the airbag supporting plate 2 and a vertical supporting portion 33 located on a side of the airbag supporting plate 2 away from the middle of the entire vehicle frame 9 in the left-right direction, and the top supporting portion 32 and the vertical supporting portion 33 are arranged in an L shape. The damper seat 6 is fixed to the vertical support portion 33, and the vertical support portion 33 is provided with a positioning hole 331 which is positioned with the damper seat 6 before the welding fixation. The vertical supporting part 33 is fixedly connected with the damper reinforcing plate 7, namely, one side of the side surfaces of the left side and the right side of the damper reinforcing plate 7 is fixed with the air bag supporting plate 2, and the other side of the side surfaces of the left side and the right side is fixed with the vertical supporting part 33, so that the stability of the supporting vertical plate 3 and the air bag supporting plate 2 is ensured. The two supporting vertical plates 3 are arranged in parallel at intervals from front to back, wherein one supporting vertical plate is a front supporting vertical plate, and the other supporting vertical plate is a back supporting vertical plate. In other embodiments, the damper seat and the airbag support plate may be an integral suspension mounting plate, in which case both the damper and the airbag are mounted to the suspension mounting plate.
In order to avoid interference between the shock absorber and the shock absorber reinforcing plate 7, an avoiding notch 71 is arranged on the shock absorber reinforcing plate 7, the avoiding notch 71 is arranged on the part, between the two supporting vertical plates 3, of the shock absorber reinforcing plate 7, and the shock absorber can be conveniently installed and the installation position of the shock absorber can be conveniently adjusted by arranging the avoiding notch 71. In other embodiments, the supporting vertical plate may be directly fixed to the damper reinforcing plate, or the damper seat may be disposed flush with the horizontal mounting plate, and at this time, the damper seat may be directly fixed to the horizontal mounting plate, and at this time, in order to ensure the fixing strength, one end of the damper seat, which is far away from the middle of the entire vehicle frame in the left-right direction, may be fixed to the reinforcing beam. In order to secure the fixing strength of the damper reinforcing plate 7, the damper reinforcing plate 7 has a reinforcing beam fixing portion 72 extending upward between the two upright support plates 3 and fixed to the reinforcing beam 5.
In order to further strengthen the suspension support structure, the air bag support plate is supported in space, a reinforcing rib plate 4 fixed with the two supporting vertical plates 3 is arranged in the interval between the two supporting vertical plates 3, the reinforcing rib plate 4 is a V-shaped rib plate, the V-shaped rib plate extends in the front-back direction, the front end and the back end of the V-shaped rib plate are respectively fixed on the two supporting vertical plates 3, the opening of the V-shaped rib plate faces downwards, and the bottom of the V-shaped rib plate is fixed on the air bag support plate 2. Two V-shaped ribbed slabs are arranged, and the two V-shaped ribbed slabs are arranged on the left and right. The local rigidity of the supporting vertical plate 3 is improved through the V-shaped rib plate, the air bag supporting plate 2 and the supporting vertical plate 3 are connected into a whole through the V-shaped rib plate, and the maximization of the rigidity utilization effect of materials is achieved. In other embodiments, the reinforcing rib may be W-shaped, or may be a flat plate, and when the reinforcing rib is a flat plate, the reinforcing rib may be vertically arranged or obliquely arranged, but both ends of the reinforcing rib should be fixed to the two supporting vertical plates. In other embodiments, when a plurality of supporting vertical plates are provided, one reinforcing rib plate can be fixed with three supporting vertical plates at the same time. Of course, when the strength of the supporting vertical plate meets the requirement, the reinforcing rib plate is not needed, and the reinforcing rib plate can be only connected with the supporting vertical plate and the air bag supporting plate.
In this embodiment, the two adjacent vertical support plates 3, the reinforcing rib plate 4 located on the adjacent vertical support plate 3, and the airbag support plate 2 form a three-dimensional support structure, so that the stability of the suspension support structure 10 is improved.
The upper ends of the two supporting vertical plates 3 are provided with clamping grooves 31 which are clamped behind the stiffening beam 5 and are welded and fixed with the stiffening beam 5, so that the supporting vertical plates 3 and the stiffening beam 5 can be conveniently pre-positioned. In other embodiments, the supporting vertical plate can be welded and fixed with the reinforcing beam through the end surface of the upper end.
An L-shaped reinforcing sealing plate 8 with an L-shaped horizontal section is further arranged between the supporting vertical plate 3 and the reinforcing beam 5, the L-shaped reinforcing sealing plate 8 comprises a first reinforcing section 81 extending in the front-back direction and a second reinforcing section 82 extending in the left-right direction, the upper end and the lower end of the first reinforcing section 81 are respectively fixed on the supporting vertical plate 3 and the reinforcing beam 5, and the upper end and the lower end of the second reinforcing section 82 are also respectively fixed on the supporting vertical plate 3 and the reinforcing beam 5. Two L-shaped reinforcing seal plates 8 are arranged, wherein one of the L-shaped reinforcing seal plates is positioned at the front side of the front supporting vertical plate, and the other one of the L-shaped reinforcing seal plates is positioned at the rear side of the rear supporting vertical plate. The suspension seat in the embodiment is welded and fixed with the reinforcing beam through the supporting vertical plate, the L-shaped reinforcing sealing plate and the shock absorber reinforcing plate, and in other embodiments, the suspension seat can also be fixed with the reinforcing beam through the air bag supporting plate.
In the embodiment, the air bag supporting plate 2 is fixedly connected with the shock absorber seat 6, the air bag base and the shock absorber base are reinforced and connected at each main stress point by the three reinforcing rib plates 4, the shock absorber reinforcing plate 7 and the L-shaped reinforcing sealing plate 8 to form a whole, and the CAE stress analysis is performed to optimize the reinforcing structure, so that the lightest weight is realized, the material utilization rate is highest under the condition of ensuring the large dynamic stiffness of the supporting structure, and the requirements on reliability and installation are met.
As shown in fig. 6 to 9, compared with the suspension arm type suspension support structure in the prior art, the suspension support structure 10 in the embodiment adopts the closed frame shaped like a Chinese character 'kou' to ensure the basic rigidity of the suspension support structure 10, avoid the cantilever connection of the suspension support structure 10, and simultaneously, through the CAE stress analysis optimization, the suspension support structure form can realize the improvement of the dynamic rigidity of the suspension airbag and the shock absorber mounting point of the whole vehicle framework 9, so that the displacement generated by the action of the road excitation (with the excitation frequency of 0-100Hz) on the suspension support structure 10 is minimized, the energy transmitted by the road excitation to the whole vehicle framework 9 is minimized under the normal operation condition of the whole vehicle framework 9, the sensitivity of the whole vehicle framework 9 to the road excitation under the whole vehicle full operation condition is reduced, the vibration deformation of the whole vehicle framework 9 is minimized, and the problems of the inner decoration friction abnormal sound and the low frequency rumbling in the whole vehicle caused by the framework deformation are effectively solved, the comfort performance of the whole vehicle is improved.
The suspension support structure in this embodiment is mainly mounted at the front suspension support position, and in other embodiments, the suspension support structure may be mounted at the rear suspension support position as needed.
In the specific embodiment of the suspension support structure of the present invention, the structure of the suspension support structure in this embodiment is the same as that described in the specific embodiment of the passenger car, and details are not repeated.
Claims (9)
1. Suspension bearing structure, including being used for fixing the suspension seat on whole car skeleton (9), its characterized in that: the suspension support structure comprises reinforcing beams (5) of which two ends are used for being fixed with a whole vehicle framework (9), wherein a supporting beam (1) which forms a closed framework together with the reinforcing beams (5) and the whole vehicle framework (9) is fixed on the reinforcing beams (5), one end of a suspension seat, which is arranged close to the middle of the whole vehicle framework (9) in the left-right direction, is a frame fixed end which is used for being fixed on the whole vehicle framework (9), and the other end, which is arranged far away from the middle of the whole vehicle framework (9), is a reinforced fixed end which is fixedly connected with the closed framework;
the suspension seat comprises an air bag supporting plate (2) and supporting vertical plates (3) fixed on the air bag supporting plate (2) and used for supporting the shock absorber, at least two supporting vertical plates (3) are arranged at intervals, the suspension support structure comprises shock absorber seats (6) fixed with at least two adjacent supporting vertical plates (3), and the shock absorber seats (6) are fixed at the reinforcing fixed end of the suspension seat.
2. The suspension support structure according to claim 1, wherein: the reinforced fixed end of the suspension seat is fixed on the reinforced beam (5).
3. The suspension support structure according to claim 1, wherein: the reinforcing rib plates (4) fixed with the two supporting vertical plates (3) are arranged in the interval between the two adjacent supporting vertical plates (3), and the bottoms of the reinforcing rib plates (4) are fixedly connected with the air bag supporting plate (2), so that the two adjacent supporting vertical plates (3), the reinforcing rib plates (4) between the two adjacent supporting vertical plates (3) and the air bag supporting plate (2) form a three-dimensional supporting structure.
4. The suspension support structure according to claim 3, wherein: the reinforcing rib plate (4) is a V-shaped rib plate, the V-shaped rib plate extends in the front-back direction, and the front end and the back end of the V-shaped rib plate are respectively fixed on the two supporting vertical plates.
5. The suspension support structure according to claim 1, wherein: the supporting vertical plate (3) comprises a top supporting part fixed at the top of the air bag supporting plate (2) and a vertical supporting part located on one side, far away from the middle of the whole vehicle framework (9), of the air bag supporting plate (2) in the left-right direction, the top supporting part and the vertical supporting part are arranged in an L shape, and the shock absorber seat (6) is fixed on the vertical supporting part.
6. The suspension support structure according to claim 5, wherein: the suspension seat further comprises a shock absorber reinforcing plate (7) fixed with the vertical supporting part of the two adjacent supporting vertical plates (3), one of two plate surfaces of the shock absorber reinforcing plate (7) is fixed with the vertical supporting part, the other one of the two plate surfaces is fixed with the end surface of one end, far away from the middle of the whole vehicle framework (9), of the airbag supporting plate (2) in the left-right direction, and the top of the shock absorber reinforcing plate (7) is fixedly connected with the reinforcing beam (5).
7. The suspension support structure according to claim 6, wherein: the air bag supporting plate (2) is a U-shaped plate, the end face, far away from the middle one end of the whole vehicle framework (9) in the left-right direction, of the air bag supporting plate (2) is a U-shaped end face, and the shock absorber reinforcing plate (7) is fixed with the U-shaped end face of the air bag supporting plate (2).
8. The suspension support structure according to claim 1, wherein: the upper end of the supporting vertical plate (3) is provided with a clamping groove (31) which is clamped behind the stiffening beam (5) and is welded and fixed with the stiffening beam (5).
9. The passenger train, including whole car skeleton (9) and the suspension bearing structure who sets up on whole car skeleton (9), its characterized in that: the suspension support structure according to any one of claims 1 to 8.
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| CN201910860689.8A CN112477987B (en) | 2019-09-11 | 2019-09-11 | Suspension supporting structure and passenger car |
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| CN201910860689.8A CN112477987B (en) | 2019-09-11 | 2019-09-11 | Suspension supporting structure and passenger car |
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| CN112477987B true CN112477987B (en) | 2021-12-21 |
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| CN109178102A (en) * | 2018-11-01 | 2019-01-11 | 珠海广通汽车有限公司 | A kind of vehicle frame and vehicle of vehicle |
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| JP2007106370A (en) * | 2005-10-17 | 2007-04-26 | Mazda Motor Corp | Front structure of vehicle body |
| CN205601537U (en) * | 2016-04-26 | 2016-09-28 | 杭州傲拓迈科技有限公司 | Rear suspension support device |
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: No.1, Shibali Heyu Road, Guancheng Hui District, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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