CN220535758U

CN220535758U - Vehicle chassis and vehicle

Info

Publication number: CN220535758U
Application number: CN202322156131.6U
Authority: CN
Inventors: 韩莹亮; 曾小利; 曾庆强; 禹慧丽
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-02-27
Anticipated expiration: 2033-08-11

Abstract

The application discloses a vehicle chassis and a vehicle, and belongs to the technical field of automobiles, wherein the vehicle chassis comprises a longitudinal beam, a rear auxiliary frame and a connecting bracket; the connecting bracket comprises a first part and a second part which are connected, the first part is connected with the longitudinal beam, and the second part is connected with the rear auxiliary frame; the rear auxiliary frame is connected with the longitudinal beam through the connecting bracket, and the gravity and centripetal force traction force of the vehicle body born by the rear auxiliary frame are transmitted to the longitudinal beam through the connecting bracket by the rear auxiliary frame when the vehicle turns, and the longitudinal beam absorbs force through crushing deformation and bending deformation. The pressure born by the rear auxiliary frame is reduced through force transmission, the stability and the rigidity of the chassis of the vehicle are improved, the problems of poor transverse operation stability and poor lateral rigidity of the vehicle, particularly a new energy vehicle, in the turning process are solved, and the driving safety and the driving comfort of the vehicle of a user are improved.

Description

Vehicle chassis and vehicle

Technical Field

The application belongs to the technical field of automobiles, and particularly relates to a vehicle chassis and a vehicle.

Background

At present, along with the development of national economy, the living standard of people is increasingly promoted, automobiles are gradually and generally used as transportation means for traveling, traveling transportation and the like are no longer a problem for puzzling people, the automobiles are used as one of main transportation means for traveling of people, and the safety problem and driving experience of the automobiles in the traveling process are also one of the most serious conditions for people when selecting automobiles.

At present, in the related art, when a common vehicle turns, the vehicle body has an inclined angle, the rear auxiliary frame is stressed due to the gravity of the vehicle, the situation is particularly shown on a new energy vehicle, the new energy vehicle can shake due to the fact that the weight of a vehicle battery arranged below a floor is large and the vehicle is likely to shake in turning, the transmission of the loads can lead to the deformation of the rear auxiliary frame of the vehicle, when the rigidity of the rear auxiliary frame is insufficient, the situation of local structural damage of the chassis of the vehicle can be caused, the overall performance of the chassis of the vehicle is affected, and therefore the transverse operation stability and the lateral rigidity of the whole vehicle in the driving process are affected, and even traffic safety accidents can be caused seriously.

Disclosure of Invention

The utility model aims to provide a vehicle chassis to solve the problems that in the prior art, a running automobile is subjected to centripetal force traction and pressure on a rear auxiliary frame caused by self gravity load during turning, and the deformation of the rear auxiliary frame causes the whole performance of the vehicle chassis to be influenced, so that the transverse operation stability and the lateral rigidity of the vehicle are particularly poor during turning during driving.

A first aspect of embodiments of the present application provides a vehicle chassis, the vehicle chassis comprising:

the device comprises a longitudinal beam, a rear auxiliary frame and a connecting bracket;

the connecting bracket comprises a first part and a second part which are connected, wherein the first part is connected with the longitudinal beam, and the second part is connected with the rear auxiliary frame.

Further, the first portion includes a first connecting section and a first transition section; the first connecting section is connected with one end of the first transition section, and the other end of the first transition section is connected with the second part;

at least one first connecting hole is formed in the first connecting section, and the first connecting section is fixedly connected with the longitudinal beam through the first connecting hole and a bolt penetrating through the first connecting hole.

Further, the second part comprises a first shell and a second shell, and the first shell and the second shell are welded and connected;

the first shell and the second shell comprise a connecting part and a disc part, the connecting part is connected with the first transition section, and the disc part is connected with the rear auxiliary frame;

and a mounting hole is formed between the first connecting part and the second connecting part, the end part of the first transition section is positioned in the mounting hole, and the first transition section is welded and connected with the connecting part.

Further, a plug welding hole is formed in the connecting portion of the second shell, and the plug welding hole is in welded connection with the first transition section.

Further, a second connecting hole is formed in the disc portion of the first shell, a third connecting hole is formed in the disc portion of the second shell, and the disc portion is connected with the rear auxiliary frame through the second connecting hole, the third connecting hole and bolts penetrating through the second connecting hole and the third connecting hole.

Further, the reinforcing piece is located between the disc part of the first shell and the disc part of the second shell, the reinforcing piece is provided with a matching hole, the matching hole penetrates through the reinforcing piece, and the matching hole is communicated with the second connecting hole.

Further, the reinforcement includes a main body portion and an embedded portion, the diameter of the main body portion being larger than the diameter of the embedded portion;

the aperture of the third connecting hole is matched with the diameter of the embedded part, and the embedded part is positioned in the third connecting hole.

Compared with the prior art, the vehicle chassis provided by the utility model has the following advantages:

the present utility model provides a vehicle chassis comprising: the connecting bracket comprises a first part and a second part which are connected, wherein the first part of the connecting bracket is connected with the longitudinal beam, and the second part of the connecting bracket is connected with the rear auxiliary frame.

Therefore, the longitudinal beam and the rear auxiliary frame are connected through the connecting bracket, the vehicle body is inclined in the running process of the vehicle, particularly in the turning process of the vehicle, the rear auxiliary frame is stressed to the longitudinal beam through the connecting bracket when being subjected to the self weight and the centripetal force traction action of the vehicle, so that the stress applied to the rear auxiliary frame is reduced through the force transmission, the longitudinal beam and the rear auxiliary frame are connected through the connecting bracket, the overall rigidity and the stability of the chassis of the vehicle are improved, the transverse operation stability and the lateral rigidity of the vehicle in the turning process are improved, the potential safety hazards in the driving process are reduced, and the driving comfort and the driving safety of the vehicle are improved.

The second aspect of the present utility model proposes a vehicle to solve the problem of deterioration of lateral stability and lateral rigidity of the vehicle during running, particularly when entering a cornering situation.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a vehicle comprising a vehicle chassis provided in the first aspect of an embodiment of the present application.

The vehicle has the same advantages as the vehicle chassis described above relative to the prior art, and will not be described in detail herein.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic view of a vehicle chassis according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a vehicle chassis according to an embodiment of the present application;

fig. 3 is an overall schematic view of a connection bracket according to an embodiment of the present application;

FIG. 4 is a schematic view of a first portion of a connection bracket according to an embodiment of the present application;

fig. 5 is a schematic view of a first housing of a connection bracket according to an embodiment of the present application;

fig. 6 is a schematic view of a second housing of the connection bracket according to the embodiment of the present application;

FIG. 7 is a schematic view of a connecting bracket stiffener according to an embodiment of the present disclosure;

fig. 8 is a schematic view of the first portion of the connecting bracket, the second housing and the stiffener according to the embodiment of the present disclosure.

Description of the reference numerals

Wherein, 1-connecting bracket, 2-longitudinal beam and 3-rear auxiliary frame; 11-first portion, 111-cylindrical transition, 112-arcuate transition, 113-first connecting hole, 114-first connecting section, 115-first transition, 12-second portion, 121-first housing, 1211-second connecting hole, 122-second housing, 1221-third connecting hole, 123-connecting portion, 1231-first connecting portion, 1232-second connecting portion, 1233-plug welding hole, 124-disc portion, 1241-first disc portion, 1242-second disc portion, 14-reinforcing member, 141-main body portion, 142-embedded portion, 143-mating hole.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, examples of which are shown in the accompanying drawings, and it should be understood that although exemplary embodiments of the present application are shown in the drawings, the described embodiments are some, but not all embodiments of the present utility model, but it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. 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. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the inventors, are within the scope of the present application based on the embodiments herein.

It should be noted that the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

In recent years, with the continuous development of automobile technology and the rising of national economy, an automobile is not used as a rare household asset, but is one of main transportation tools for daily travel of people under the development of functions such as work, travel, transportation and the like, and is one of main travel tools, so that the safety and comfort of the automobile in the driving process are ensured, in the prior art, when the automobile in the driving process turns, the larger centripetal force generated by the automobile and the battery possibly shake to generate larger pressure on a rear auxiliary frame, the deformation of the rear auxiliary frame is caused by the generation of the series of forces, the overall performance of a chassis of the automobile is directly influenced by the deformation of the rear auxiliary frame, the driving comfort and the driving safety of the automobile in the driving process are reduced, the driving safety of the automobile is influenced, and even the automobile safety accidents are caused, so that the traffic safety hazards are caused.

Therefore, the embodiment of the utility model provides a vehicle chassis and a vehicle, which aim to strengthen the transverse operation stability and lateral rigidity of a running vehicle during turning, reduce potential safety hazards and improve the driving comfort and driving safety of the vehicle after the structure of the vehicle chassis is reinforced. Referring specifically to fig. 1 and fig. 2, fig. 1 is an enlarged schematic view of a part of a vehicle chassis according to an embodiment of the present application, and fig. 2 is a schematic structural view of a vehicle chassis according to an embodiment of the present application.

As shown in fig. 1, the vehicle chassis includes:

the connecting bracket comprises a first part 11 and a second part 12 which are connected, wherein the first part 11 is connected with the longitudinal beam 2, and the second part 12 is connected with the rear auxiliary frame 3.

The connecting bracket 1 is connected with the longitudinal beam 2 and the rear auxiliary frame 3 to strengthen the stability and rigidity of the chassis of the vehicle in the running process, when the running vehicle enters a turning state, the vehicle body can generate an inclination angle, and the rear auxiliary frame of the vehicle can receive larger pressure due to the traction effect of the gravity and centripetal force of the vehicle, the pressure can possibly cause the deformation of the rear auxiliary frame, so that the chassis structure of the vehicle is damaged, at the moment, after the connecting bracket is added, in the running process, particularly in the turning process, the force received by the rear auxiliary frame 3 can be transmitted to the longitudinal beam 2 through the connecting bracket 1, and the longitudinal beam 2 can generate crushing deformation and bending deformation to absorb the force transmitted by the connecting bracket 1 when receiving the force transmitted by the connecting bracket 1.

The mode of transmitting force to the longitudinal beam 2 through the connecting bracket 1 reduces the pressure borne by the rear auxiliary frame 3 in the running process and reduces the possibility of deformation of the rear auxiliary frame 3, so that the overall rigidity and stability of the vehicle chassis are enhanced, namely, the function of enhancing the overall performance of the vehicle chassis is realized through the connection of the connecting bracket 1 with the longitudinal beam 2 and the rear auxiliary frame 3, and meanwhile, the transverse operation stability and the lateral rigidity of the vehicle in the turning process are enhanced.

In an alternative embodiment, referring to fig. 4, fig. 4 shows a schematic structural view of a first portion of a connection bracket according to an embodiment of the present utility model, and as shown in fig. 4, the connection bracket first portion 11 includes: a first connecting section 114 and a first transition section 115; the first connecting section 114 is connected to one end of the first transition section 115, and the other end of the first transition section 115 is connected to the second portion 12.

Specifically, the first transition section 115 includes an arc-shaped transition section 112 and a cylindrical transition section 111 that are connected to each other, wherein an end of the arc-shaped transition section 115 remote from the cylindrical transition section 111 is connected to the first connection section 114, and an end of the cylindrical transition section 111 remote from the arc-shaped transition section 112 is connected to the second portion 12. In the present embodiment, since the side member 2 and the rear subframe 3 are on different planes, an arc-shaped transition 112 is required to form a corner region to connect the side member 2 and the rear subframe 3.

Meanwhile, the radian of the arc-shaped transition section 112 can be adjusted according to actual requirements. It can be appreciated that when the first connecting section 114 is connected with the longitudinal beam 2, due to different positions of suspension hard points set by different vehicle types of the platform, the dislocation of the suspension hard points on the first connecting section 114 and the longitudinal beam 2 can occur, so that the two cannot be connected normally. At this time, the first connecting section 114 and the longitudinal beam 2 can be normally connected by adjusting the radian of the arc-shaped transition section 112, so that complex checking work (including checking all moving parts of the whole vehicle and clearance rationality between the moving parts and peripheral parts in the moving process, chassis, vehicle body, inner and outer decorations, accessories and the like) in the front stage of the whole vehicle is avoided, the development efficiency of the whole vehicle is improved, and the suitability of different platform vehicle types can be met, so that the die opening quantity of the connecting bracket 1 can be reduced, and the development cost is reduced.

The cylindrical transition section 111 is used for connecting with the second portion 12, and the connection manner includes, but is not limited to, welding connection, and the manner of welding connection has the characteristics of reliable structure and low comprehensive cost of materials and processes.

Further, at least one first connection hole 113 is formed in the first connection section 114. In the embodiment of the present application, the first connection holes 113 are provided in total in two.

In this connection, the first portion 11 can be connected to the corresponding suspension hard point on the longitudinal beam 2 by means of a connecting element which passes through two first connecting openings 113 in the first connecting section 114. Illustratively, the connecting component may include a bolt and a nut adapted to the bolt, when the first connecting section 114 is connected with the longitudinal beam 2, a worker may pass the bolt through the two first connecting holes 113 from bottom to top, and then pass through a suspension hard point of the longitudinal beam, and after the connecting component passes through the first portion 11 and the longitudinal beam 2, the connecting component bolt screws the corresponding nut matched with the bolt, so that the first portion 11 is connected with the longitudinal beam 2, and the connecting mode has the performance characteristics of strong stability, safety and reliability, and the connecting component has the advantages of simple design, standardized parts, high efficiency and the like.

Further, referring to fig. 5 and 6, the second portion 12 includes a first case 121 and a second case 122, and the first case 121 is welded to the second case 122. It should be noted that, the first housing 121 and the second housing 122 refer to two members forming the second portion 12, in this embodiment, the first housing 121 is mainly an upper half member of the second portion 12, the second housing 122 is mainly a lower half member of the second portion 12, and after the first housing 121 and the second housing 122 are spliced and welded, the complete second portion 12 can be formed.

Further, referring to fig. 3, the first housing 121 and the second housing 122 each include a disc portion 124 and a connection portion 123, wherein, referring to fig. 5 and 6, the first connection portion 1231 is a connection portion included in the first housing 121, the second connection portion 1232 is a connection portion included in the second housing 122, the first disc portion 1241 is a disc portion included in the first housing 121, the second disc portion 1242 is a disc portion included in the second housing 122, the connection portion 123 is connected to the cylindrical transition section 111, and the disc portion 124 is connected to the rear subframe 3. Specifically, a mounting hole is formed between the first and second connection portions 1231 and 1232, an end of the cylindrical transition section 111 is located in the mounting hole, and the cylindrical transition section 111 is welded to the connection portion 123. The mounting hole may be formed by forming an arc-shaped groove on the first coupling portion 1231 and simultaneously forming a corresponding mating groove on the second coupling portion 1232, and then forming a mounting hole on the coupling portion 123 after the first and second housings 121 and 122 are coupled. Meanwhile, in order to better connect the cylindrical transition section 111, a plug welding hole 1233 is further formed in the second connection part 1232 belonging to the connection part 123, and the plug welding hole 1233 is welded to the cylindrical transition section 111.

Further, the first disc part 1241 is provided with a second connecting hole 1211, the second disc part 1242 is provided with a third connecting hole 1221, and the disc part 124 can be connected with the rear subframe 3 by inserting bolts through the third connecting hole 1221 and the second connecting hole 1211. In the embodiment of the present application, the disc portion 124 is in a disc shape as a whole, and the disc portion 124 is configured in a disc shape so as to have a larger contact area between the connection bracket 1 and the rear subframe 3, so that the connection between the connection bracket 1 and the rear subframe 3 is also more stable.

From this, first part 11 and second part 12 become a linking bridge 1 whole through cylinder changeover portion 111 and connecting portion 123 welded connection, adopt welded connection's mode can improve linking bridge reliability, and then improve whole linking bridge's rigidity and stability, through linking bridge 1 connects longeron 2 and back sub vehicle frame 3 can realize the whole improvement of vehicle chassis structural stability and intensity to reinforcing vehicle lateral manipulation stability and lateral rigidity in the turn, improvement vehicle safety and driving comfort in the driving process.

In an alternative implementation manner, the embodiment of the present application further provides a vehicle chassis, in which the reinforcement member 14 is disposed between the first disk portion 1241 and the second disk portion 1242, and the reinforcement member 14 is provided with a fitting hole 143, the fitting hole 143 is disposed through the reinforcement member, and the fitting hole 143 is in communication with the second connection hole 1211.

Specifically, referring to fig. 7, the reinforcement 14 includes a main body portion 141 and an embedded portion 142, the main body portion 141 and the embedded portion 142 are respectively two circular rings having different diameters, and the diameter of the main body portion 141 is larger than that of the embedded portion 142. The main body 141 is connected to the first disk part 1241, the embedded part 142 is connected to the second disk part 1242, and the main body 141 and the embedded part 142 may be connected to the first disk part 1241 and the second disk part 1242, respectively, by welding.

As shown in fig. 8, the aperture of the third connecting hole 1221 is matched with the diameter of the embedded portion 142, and the embedded portion 142 is located in the third connecting hole 1221.

Meanwhile, the fitting hole 143 communicates with the second connection hole 1211, and when the disc portion 124 and the rear subframe 3 are connected by bolts, the bolts need to be sequentially passed through the fitting hole 143 and the second connection hole 1211.

The strength and stability of the connection between the first and second disk portions 1241 and 1242 can be improved by the reinforcement 14, so that the reliability and stability of the connection of the disk portion 124 to the rear subframe 3 can be improved, the stability of the second portion 12 of the connection bracket 1 can be improved when the rear subframe 3 is transmitting force, and the whole connection bracket can be more stable when transmitting force.

In summary, the embodiment of the application discloses a vehicle chassis, which has the following advantages:

in this embodiment, because the vehicle chassis includes longeron 2 and back sub vehicle frame 3 still including linking bridge 1, linking bridge 1's first portion 11 is connected with longeron 2, linking bridge 1's second portion 12 is connected with back sub vehicle frame 3, and linking bridge 1's first portion 11 and second portion 12 pass through welded connection, just so, just can link up longeron 2 and back sub vehicle frame 3 through linking bridge 1, can strengthen vehicle chassis's stability and rigidity. Moreover, the longitudinal beam 2 and the rear auxiliary frame 3 are connected through the connecting bracket 1, so that the pressure of the vehicle body to the rear auxiliary frame 3 can be transferred when the vehicle turns, the strength and durability of the rear auxiliary frame 3 are improved, the stability of the whole vehicle and the lateral stability and the lateral rigidity of the vehicle during turning are improved, and the safety in the driving process and the driving experience of the vehicle are guaranteed.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

Based on the same conception, the embodiment of the application also provides a vehicle, wherein the vehicle comprises any vehicle chassis.

The foregoing has outlined a vehicle chassis and a vehicle according to the present utility model, and the specific examples have been used herein to illustrate the principles and embodiments of the present application, and the description of the examples is only for the purpose of aiding in the understanding of the present application, and the present disclosure should not be construed as limiting the present application. While various modifications of the embodiments and applications will occur to those skilled in the art in light of this disclosure, it is not necessary or obvious to be exhaustive of all embodiments, and the obvious variations or modifications which come within the scope of the utility model are merely preferred examples given above for the sake of fully explaining the present application, and the scope of the present application is not limited thereto; equivalent substitutions and modifications will occur to those skilled in the art based on the present application, and are intended to be within the scope of the present application.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

It should also be noted that, in the present document, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Moreover, relational terms such as "first" and "second" may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, or order, and without necessarily being construed as indicating or implying any relative importance. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device comprising the element.

Claims

1. A vehicle chassis, comprising:

2. The vehicle chassis of claim 1, wherein:

the first portion includes a first connecting section and a first transition section; the first connecting section is connected with one end of the first transition section, and the other end of the first transition section is connected with the second part;

3. The vehicle chassis of claim 2, wherein:

the second part comprises a first shell and a second shell, and the first shell and the second shell are welded and connected;

the connecting part of the first shell is a first connecting part, and the connecting part of the second shell is a second connecting part;

4. A vehicle chassis according to claim 3, characterized in that:

and a plug welding hole is formed in the connecting part of the second shell, and the plug welding hole is in welded connection with the first transition section.

5. The vehicle chassis of claim 4, wherein:

the disc part of the first shell is provided with a second connecting hole, the disc part of the second shell is provided with a third connecting hole, and the disc part is connected with the rear auxiliary frame through the second connecting hole, the third connecting hole and bolts penetrating through the second connecting hole and the third connecting hole.

6. The vehicle chassis of claim 5, further comprising:

the reinforcing piece is located between the disc part of the first shell and the disc part of the second shell, a matching hole is formed in the reinforcing piece, the matching hole penetrates through the reinforcing piece, and the matching hole is communicated with the second connecting hole.

7. The vehicle chassis of claim 6, wherein:

the reinforcement comprises a main body part and an embedded part, wherein the diameter of the main body part is larger than that of the embedded part;

8. A vehicle comprising a vehicle chassis according to any one of claims 1-7.