Support structure, vehicle body and vehicle

Abstract

The application relates to a supporting structure, a vehicle body and a vehicle. The supporting structure comprises a supporting beam extending along a first direction and capable of being connected with a suspension along a second direction, and a clamping assembly comprising a first clamping piece and a second clamping piece arranged on opposite sides of the supporting beam along a third direction. Along the third direction, the first clamping piece and the second clamping piece are jointly clamped on the supporting beam and surround a mounting interval for the suspension to be inserted along the second direction to be connected with the first clamping piece and the second clamping piece. The first clamping piece and the second clamping piece are clamped on the two sides of the supporting beam, the first clamping piece, the second clamping piece and the supporting beam surround the mounting interval for the suspension to be inserted, the first clamping piece and the second clamping piece are jointly clamped on the supporting beam and the suspension to complete the connection of the supporting beam and the suspension, the structural strength of the connection position of the supporting beam and the suspension is ensured, and the condition that the self weight of the body-in-white is increased due to the installation of multiple reinforcing plates on the supporting beam is avoided.

Description

Technical Field

[0001] This application relates to the technical field of vehicle manufacturing, and in particular to a support structure, body, and vehicle. Background Technology

[0002] With the development of vehicle manufacturing technology, the requirements for the structural strength of the vehicle body are gradually increasing. In related technologies, the front longitudinal beams and the upper suspension of the body-in-white of heavy commercial vehicles all adopt a split structure. The longitudinal beams are generally stamped beams with a U-shaped cross-section. The depth of the longitudinal beams is basically the same at all positions along the length direction. The suspension is fixed to the lower surface or side of the longitudinal beams by upper brackets.

[0003] However, the longitudinal beams and suspension connections using the above structure are subjected to high stress, and the longitudinal beams need to adopt a multi-layer structure to ensure the structural strength of the longitudinal beam connection position, which greatly increases the weight of the body-in-white. Summary of the Invention

[0004] Therefore, it is necessary to provide a support structure, body, and vehicle to address the issue that the longitudinal beams using structural connections in related technologies require multi-layer structures to ensure the structural strength of the connection points, which leads to an increase in the weight of the body-in-white.

[0005] In a first aspect, this application provides a support structure, which adopts the following technical solution:

[0006] A support structure includes a support beam and a clamping assembly. The support beam extends along a first direction and is capable of connecting to a suspension along a second direction perpendicular to the first direction. The clamping assembly includes a first clamping member and a second clamping member disposed on opposite sides of the support beam along a third direction, the third direction being perpendicular to the first direction and the second direction, respectively. Along the third direction, the first clamping member and the second clamping member jointly clamp the support beam and enclose an installation area, the installation area being used for the suspension to be inserted along the second direction to connect to the first clamping member and the second clamping member.

[0007] In one embodiment, the support structure further includes a support member disposed within the installation interval, the support member being connected between the first clamping member and the second clamping member.

[0008] In one embodiment, viewed along the first direction, the support beam is constructed in a U-shape, the support member is constructed in an n-shape, and the support beam, the support member, the first clamping member, and the second clamping member together form a sun-shaped structure.

[0009] In one embodiment, the support structure further includes a plurality of reinforcing ribs extending along the first direction, wherein a portion of the reinforcing ribs are connected to the first clamping member, and the remaining reinforcing ribs are connected to the second clamping member.

[0010] In one embodiment, along the first direction, the first clamping member and / or the second clamping member includes a connecting portion and extension portions disposed on opposite sides of the connecting portion, the connecting portion being used for the suspension connection, and the extension portions being connected between the support beam and the connecting portion; wherein, along the direction away from the connecting portion, the protrusion dimension of the extension portions relative to the support beam gradually decreases in the second direction.

[0011] In one embodiment, along the second direction, the support structure further has a plurality of mounting positions for connecting the suspension, the suspension being able to be connected to any of the mounting positions.

[0012] In one embodiment, corresponding to each of the installation positions, the first clamp and / or the second clamp has at least three fixed channels, the lines connecting any two of the fixed channels intersecting each other, and the fixed channels are used for fasteners to pass through to connect the first clamp, the second clamp and the suspension.

[0013] In one embodiment, the support beam is a roll-formed beam.

[0014] Secondly, this application provides a vehicle body, which adopts the following technical solution:

[0015] A vehicle body includes the aforementioned support structure, suspension mount, and fasteners, wherein the suspension mount is connectable to the support structure along a second direction for connecting the support structure to a driver's cab; and the fasteners are passable through the suspension mount and the support structure along the second direction for connecting the support structure and the suspension mount.

[0016] Thirdly, this application provides a vehicle that adopts the following technical solution:

[0017] A vehicle comprising the aforementioned body.

[0018] The aforementioned support structure has a first clamping member and a second clamping member respectively set on both sides of the support beam, which together clamp the support beam. The first clamping member and the second clamping member are respectively attached to and connected to the support beam to form an installation area for the suspension to be inserted. When the support beam is connected to the suspension, the first clamping member and the second clamping member are together clamped on the support beam and the suspension, which ensures the structural strength of the connection position between the support beam and the suspension, thereby avoiding the situation where adding multiple reinforcing plates to the support beam would increase the weight of the body-in-white. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly of the longitudinal beam and the suspension in the relevant technology.

[0020] Figure 2 This is a schematic diagram of the vehicle body assembly in one embodiment of this application.

[0021] Figure 3 This is an exploded view of the support structure in one embodiment of this application.

[0022] Figure 4 This is a cross-sectional view of the support structure in one embodiment of this application.

[0023] Attached image annotations:

[0024] 1. Support structure; 11. Support beam; 12. First clamping member; 121. Connecting part; 122. Extension part; 13. Second clamping member; 131. Fixing channel; 14. Supporting member; 15. Reinforcing rib; 2. Suspension; 3. Fastener; 4. Installation area; 5. Longitudinal beam; 6. Installation position; F1. First direction; F2. Second direction; F3. Third direction. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Wherein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible embodiments. Wherein, "first direction" refers to the extension direction of the support beam, or the length direction of the vehicle body; "second direction" can be the height direction of the vehicle body; and "third direction" can be the width direction of the vehicle body.

[0031] The following is in conjunction with the appendix Figure 1-4 The embodiments of this application will be described in further detail.

[0032] See Figure 1 , Figure 1The diagram shows the assembly of the body-in-white and the suspension 2 in the related technology. In the related technology, the front part of the longitudinal beam 5 of the body-in-white of the heavy commercial vehicle and the upper part of the suspension 2 are all assembled separately. The longitudinal beam 5 plays a supporting role to support the load transmitted by the suspension 2.

[0033] In related technologies, the longitudinal beam 5 is generally made of U-shaped stamped beam. The depth of the longitudinal beam 5 is basically the same at various positions in the length direction. The longitudinal beam 5 with U-shaped structure design has a nut welded inside, and the suspension 2 is fixed to the lower surface or side of the longitudinal beam 5 by bolts.

[0034] This structural design places high demands on the structural strength of the longitudinal beam 5. Two to three layers of steel plates need to be welded at the connection between the longitudinal beam 5 and the suspension 2 to enhance the local structural strength of the longitudinal beam 5, thereby reducing the possibility of local breakage at the connection point between the longitudinal beam 5 and the suspension 2.

[0035] It is understandable that welding 2 to 3 layers of steel plates at the connection between the longitudinal beam 5 and the suspension 2 will increase the overall weight of the body-in-white and lead to increased production costs.

[0036] Combination Figure 2 As shown, Figure 2 This illustration shows an assembly diagram of a vehicle body according to an embodiment of this application. To address the aforementioned problems, an embodiment of this application provides a support structure 1, which includes a support beam 11 welded to the floor of the vehicle body and a clamping assembly. The support beam 11 extends along a first direction F1 and is connected to a suspension 2 along a second direction F2. The clamping assembly includes a first clamping member 12 and a second clamping member 13. Along a third direction F3, the first clamping member 12 and the second clamping member 13 are located on opposite sides of the support beam 11 and connected to the support beam 11.

[0037] Specifically, in this embodiment, the first clamping member 12 and the second clamping member 13 are both constructed as plate-shaped structures. When viewed from the first direction F1, the support beam 11 is constructed as a U-shaped structure. The opposite end faces of the first clamping member 12 and the second clamping member 13 are respectively attached to and welded to the two opposite sides of the support beam 11 in the third direction F3, thereby enhancing the overall structural strength of the support beam 11.

[0038] In addition, in the second direction F2, the protrusion of the first clamping member 12 and the second clamping member 13 relative to the body-in-white floor is greater than that of the support beam 11, and the opposite end faces of the first clamping member 12 and the second clamping member 13 and the bottom surface of the support beam 11 form an installation area 4 for the insertion of the suspension 2.

[0039] During actual installation, the suspension 2 can be inserted into the installation section 4 along the second direction F2. At this time, the two opposite sides of the suspension 2 on the third direction F3 are closely attached and connected to the two end faces opposite to the first clamping member 12 and the second clamping member 13, so that the support beam 11 can be connected to the suspension 2 by means of the clamping assembly.

[0040] Compared to the longitudinal beam 5 structure shown in related technologies, the support beam 11 connected to the suspension 2 using this structure does not need to be directly connected to the suspension 2 via fasteners such as screws. Instead, it is indirectly connected to the suspension 2 using the first clamping member 12 and the second clamping member 13. During connection, the first clamping member 12 and the second clamping member 13 clamp the support beam 11 and the suspension 2 together, so that the stress that the support beam 11 was originally subjected to when it was connected to the suspension 2 by bolts (i.e., point connection) can be distributed to the entire support beam 11 through the first clamping member 12 and the second clamping member 13, achieving surface connection, thereby reducing the stress intensity at local locations of the support beam 11.

[0041] Therefore, by adopting the support structure 1 shown in the embodiment of this application, while ensuring the connection strength between the support beam 11 and the suspension 2, the structural strength requirements of the local position of the support beam 11 are also reduced. This means that when the support beam 11 is connected, there is no need to add a large number of reinforcing plates to improve the local structural strength, thereby avoiding the situation of increased body weight and significant cost increase caused by adding reinforcing plates.

[0042] Combination Figure 3 and Figure 4 As shown, Figure 3 An exploded view of the support structure according to one embodiment of this application is shown. Figure 4 A cross-sectional view of a support structure 1 in one embodiment of this application is shown. In some embodiments, the support structure 1 further includes a support member 14 disposed in the installation section 4. The support member 14 is welded between the first clamping member 12 and the second clamping member 13 and always applies a support force to the first clamping member 12 and the second clamping member 13.

[0043] Specifically, viewed from the first direction F1, the support member 14 in this embodiment is constructed into an n-shaped structure. As can be seen from the above embodiments, the support beam 11 is constructed into a U-shaped structure, and the openings of the support member 14 and the support beam 11 are arranged opposite to each other. The first clamping member 12 and the second clamping member 13 are both constructed into plate-like structures. Therefore, the first clamping member 12, the second clamping member 13, the support beam 11 and the support member 14 will together form a H-shaped structure.

[0044] The support structure 1 with the above-mentioned structural design has a uniform stress distribution, and it is not easy for local stress to be large or even for local damage to occur. The structural strength requirements of the support beam 11 itself are low. Therefore, a single-layer beam and column can be used as the support beam 11, thereby further reducing the self-weight and construction cost of the body-in-white.

[0045] In this embodiment, the support beam 11 can be a roll-formed beam column, specifically made of PD980 material with a thickness of 1.5cm. The support beam 11 made of this material has a certain structural strength while also having a relatively small self-weight, which is beneficial for achieving lightweighting of the body-in-white.

[0046] Furthermore, since the support beam 11 is a roll-formed structure with a simple structure, the support beam 11 can be constructed according to the length requirements of the cab. Moreover, the length variation of the roll-formed beam is not limited by the mold, and there is no need to add the mold cost of the longitudinal beam 5, which helps to adapt to the length requirements of the cab of different models.

[0047] Continue reading Figure 3 As shown, in order to further enhance the load-bearing capacity of the support structure 1, especially the load capacity of the first clamping member 12 and the second clamping member 13, in some embodiments, the support structure 1 further includes a plurality of reinforcing ribs 15. The reinforcing ribs 15 extend along the second direction F2, with a portion of the reinforcing ribs 15 connected to the first clamping member 12 and the remaining portion of the reinforcing ribs 15 connected to the second clamping member 13, so as to improve the deformation resistance of the first clamping member 12 and the second clamping member 13 in the third direction F3, thereby improving the reliability and load-bearing capacity of the support structure 1.

[0048] In this embodiment, the reinforcing rib 15 is integrally formed on the two opposite end faces of the first clamping member 12 and / or the second clamping member 13 in the third direction F3, so as to reduce the impact of the reinforcing rib 15 on the fit between the first clamping member 12 and / or the second clamping member 13 and the support beam 11. In some other embodiments, for ease of manufacturing, the reinforcing rib 15 may also be welded to the first clamping member 12 and / or the second clamping member 13.

[0049] See Figure 3 In some embodiments, along the first direction F1, the first clamping member 12 and / or the second clamping member 13 includes a connecting portion 121 and an extension portion 122 connected to opposite sides of the connecting portion 121. The connecting portion 121 is used for connecting the suspension 2, and the extension portion 122 is connected between the extension portion 122 and the support beam 11 to uniformly distribute the stress on the connecting portion 121 to the entire support beam 11, thereby reducing the structural strength requirements of local positions of the support beam 11.

[0050] In this embodiment of the application, in order to ensure the structural strength of the connection between the connecting part 121 and the extension part 122, the two extension parts 122 are integrally formed on both sides of the connecting part 121 along the first direction F1.

[0051] Specifically, both the connecting part 121 and the extension part 122 are welded to the side wall of the support beam 11. When viewed from the third direction F3, the connecting part 121 and the extension part 122 together form a triangular structure with an obtuse apex angle. That is, relative to the body-in-white floor, from the connecting part 121 to the direction away from the connecting part 121, the protrusion dimension of the extension part 122 in the second direction F2 gradually decreases, thereby realizing a smooth transition connection between the first clamping member 12 and / or the second clamping member 13 and the support beam 11.

[0052] The support structure 1 designed above allows the stress on the first clamping member 12 and / or the second clamping member 13 after they are connected to the suspension 2 to be evenly distributed along the extension 122 to the entire support beam 11, thereby reducing the occurrence of local stress concentration or even local damage in the support beam 11. This makes the overall stress distribution of the support structure 1 more reasonable, and gives it better load-bearing capacity and structural reliability.

[0053] See Figures 1 to 3 In related technologies, the suspension 2 is directly connected to the bottom or side of the longitudinal beam 5 by bolts. The depth of the longitudinal beam 5 is basically the same at all positions in the extension direction, that is, the connection point between the longitudinal beam 5 and the suspension 2 is fixed. However, depending on different market demands, the height between the cab and the frame often has various values.

[0054] In related technologies, to adapt to the different cab height requirements of various vehicle models, the connection points of the longitudinal beam 5 are usually kept unchanged. Instead, a suspension upper body casting and a suspension connection structure are added between the longitudinal beam 5 and the suspension 2 to adjust the cab height. However, this results in the need to design multiple sets of suspension 2 upper body castings for different vehicle heights during actual production, leading to numerous molds and high costs. Furthermore, the castings are heavy, which is detrimental to achieving lightweight suspension upper bodies.

[0055] Meanwhile, due to the large variations in the suspension connection structure corresponding to different cab heights, each height scheme requires corresponding strength tests for the body-in-white and suspension connection structure scheme, resulting in a long design verification cycle, which is not conducive to the serialized and modular production of vehicles.

[0056] Therefore, in order to solve the above problems, in this embodiment of the application, the support structure 1 also has multiple mounting positions 6, and all mounting positions 6 are arranged at intervals along the second direction F2. In the actual assembly process, the suspension 2 can be connected to any mounting position 6 to adapt to the requirements of the cab height of different vehicle models.

[0057] While realizing the height adjustment of the cab, the support structure 1 does not require any modification to the structure of the mount 2. This structure not only saves the cost of adding new parts for the mount 2, but also reduces the risks to structural strength and reliability caused by changes to the structure of the mount 2, and lowers the difficulty of developing vehicle models of different height series.

[0058] Corresponding to each mounting position 6, the first clamping member 12 and / or the second clamping member 13 has at least three fixing passages 131, and connecting lines between any two fixing passages 131 intersect each other and are not collinear. In the embodiments of the present application, three fixing passages 131 are provided corresponding to each mounting position 6 as an example for description.

[0059] Specifically, the fixing passages 131 are bolt holes for fasteners 3 such as bolts to pass through. The three fixing passages 131 are distributed at different heights and are spaced apart from each other by a certain distance, which is beneficial to improving the connection strength between the mount 2 and the first clamping member 12 and / or the second clamping member 13, and facilitates force transmission at connection points and decomposition of torsional force.

[0060] Reference is made to Figures 2 to 4 , an embodiment of the present application further provides a vehicle body, which includes the support structure 1 shown in any of the above embodiments, the mount 2, and the fastener 3 for connecting the mount 2 and the support structure 1.

[0061] In the actual assembly process, the mount 2 is first inserted into the mounting section 4 along the second direction F2, and an appropriate mounting position 6 is selected according to the cab height requirement of the current vehicle model, so that the first clamping member 12, the second clamping member 13, the support member 14 and the support beam 11 together form a structure with a "日"-shaped cross-section, and then the fastener 3 is used to pass through the first clamping member 12, the mount 2 and the second clamping member 13 in sequence, so as to complete the connection between the mount 2 and the support structure 1.

[0062] In the embodiment of the present application, the fastener 3 is specifically a combined structure of a bolt and a nut.

[0063] The vehicle body adopting the above structure can be adjusted adaptively according to the cab height and length requirements of the current vehicle model while ensuring the connection strength and structural stability between the mount 2 and the support structure 1, which can reduce the difficulty of developing vehicle models of different height series. Moreover, the vehicle body does not need additional auxiliary structures when adapting to the cab height and length requirements of different vehicle models, which helps realize the lightweight of the vehicle body and reduces the production cost.

[0064] In addition, an embodiment of the present application further provides a vehicle (not shown), which applies the above vehicle body, realizing lightweight of the vehicle while ensuring the overall structural strength of the vehicle.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A support structure connected to the driver's cab, characterized in that, The support structure includes: A support beam extends along a first direction and is capable of connecting to a suspension along a second direction perpendicular to the first direction; The clamping assembly includes a first clamping member and a second clamping member disposed on opposite sides of the support beam along a third direction, the third direction being perpendicular to the first direction and the second direction, respectively; and A support member is disposed within the installation area and connected between the first clamping member and the second clamping member; viewed along the first direction, the support beam is constructed into a U-shaped structure, the support member is constructed into an n-shaped structure, and the support beam, the support member, the first clamping member and the second clamping member together are constructed into a sun-shaped structure; Along the third direction, the first clamping member and the second clamping member are jointly clamped on the support beam and form an installation area. The installation area is used for the suspension to be inserted along the second direction to connect to the first clamping member and the second clamping member, and there is no direct connection between the support member and the support beam. Along the second direction, the support structure also has a plurality of mounting positions for connecting the suspension, the suspension being able to be connected to any of the mounting positions; For each of the installation positions, the first clamp and / or the second clamp has at least three fixed channels, the lines connecting any two of the fixed channels intersect each other, and the fixed channels are used for fasteners to pass through to connect the first clamp, the second clamp and the suspension.

2. The support structure according to claim 1, characterized in that, The support structure further includes a plurality of reinforcing ribs that extend along the first direction, wherein a portion of the reinforcing ribs are connected to the first clamping member and the remaining reinforcing ribs are connected to the second clamping member.

3. The support structure according to claim 2, characterized in that, The reinforcing rib is integrally formed on the opposite end face of the first clamping member and / or the second clamping member in the third direction.

4. The support structure according to claim 1, characterized in that, Along the first direction, the first clamping member and / or the second clamping member includes a connecting portion and extension portions disposed on opposite sides of the connecting portion, the connecting portion being used for the suspension connection, and the extension portions being connected between the support beam and the connecting portion; In particular, along the direction away from the connection portion, the protrusion dimension of the extension portion relative to the support beam gradually decreases in the second direction.

5. The support structure according to claim 4, characterized in that, Viewed from the third direction, the connecting portion and the extension portion together form a triangular structure with an obtuse apex angle.

6. The support structure according to claim 1, characterized in that, The supporting beam is a roll-formed beam.

7. A vehicle body, characterized in that, The vehicle body includes: The support structure as described in any one of claims 1-6 above; A suspension mount, capable of being connected to the support structure along the second direction, for connecting the support structure to the cab; and Fasteners are capable of passing through the suspension and the support structure along the third direction to connect the support structure and the suspension.

8. A vehicle, characterized in that, Including the vehicle body as described in claim 7.

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