Subframe mounting point structure, vehicle body frame and vehicle

Abstract

The utility model discloses an auxiliary frame mounting point structure, a vehicle body frame and a vehicle, the auxiliary frame mounting point structure is applied to a longitudinal beam of the vehicle, and the auxiliary frame mounting point structure comprises a first reinforcing plate, a second reinforcing plate and a sleeve; the first reinforcing plate and the second reinforcing plate are connected to form a fixing cavity, the cavity wall of the fixing cavity is connected with the outer wall of the sleeve, the inner wall of the sleeve is connected with an auxiliary frame, and the first reinforcing plate and the second reinforcing plate are connected with the longitudinal beam. The connecting strength of the auxiliary frame mounting point structure is improved, and the requirement for fatigue durability is met.

Description

Technical Field

[0001] This application relates to the field of vehicle body frame technology, and in particular to a subframe mounting point structure, a vehicle body frame, and a vehicle. Background Technology

[0002] The subframe is a crucial assembly component mounted at the bottom of the vehicle body. Its primary function is to support and mount components such as the vehicle's powertrain and suspension systems. The subframe is typically connected to the body using bolts.

[0003] The existing subframe mounting points are located on the vehicle's longitudinal beams, with threaded sleeves fixedly mounted on the beams. These sleeves are bolted to the subframes and welded to the longitudinal beams. The subframe mounting point location suffers from insufficient connection strength, failing to meet fatigue durability requirements. Utility Model Content

[0004] The purpose of this utility model is to solve the aforementioned technical problems by providing a subframe mounting point structure, a vehicle body frame, and a vehicle, thereby improving the connection strength of the subframe mounting point structure and meeting fatigue durability requirements. To achieve the above objective, the technical solution of this utility model is as follows:

[0005] A subframe mounting point structure is applied to the longitudinal beam of a vehicle. The subframe mounting point structure includes a first reinforcing plate, a second reinforcing plate, and a sleeve. The first reinforcing plate and the second reinforcing plate are connected to form a fixing cavity. The cavity wall of the fixing cavity is connected to the outer wall of the sleeve. The inner wall of the sleeve is connected to the subframe. The first reinforcing plate and the second reinforcing plate are respectively connected to the longitudinal beam.

[0006] Specifically, the longitudinal beam is provided with a longitudinal beam groove, and the first reinforcing plate includes a first abutment, a support, and a first connecting part. The bottom of the first abutment is connected to the support, and the support is connected to the bottom wall of the longitudinal beam groove. The side of the first abutment is connected to the first connecting part, and the first connecting part is connected to the side wall of the longitudinal beam groove.

[0007] Specifically, the second reinforcing plate includes a second supporting part, a circumferential part, and a second connecting part. One end of the second supporting part is connected to the circumferential part, and the other end of the second supporting part is connected to the second connecting part. The circumferential part and the second connecting part are respectively connected to the side wall of the longitudinal beam groove.

[0008] Specifically, the circumferential portion extends between the first connecting portion and the side wall of the longitudinal beam groove.

[0009] Specifically, the first support part and the second support part are abutted and connected. The first support part is provided with a first arc-shaped groove, and the second support part is provided with a second arc-shaped groove. The second arc-shaped groove and the first arc-shaped groove are arranged opposite to each other to form the fixing cavity.

[0010] Specifically, it also includes a third reinforcing plate, which is disposed in the longitudinal beam groove of the longitudinal beam, and the first reinforcing plate and the second reinforcing plate are respectively connected to the third reinforcing plate.

[0011] Specifically, the bottom of the third reinforcing plate is connected to the bottom wall of the longitudinal beam groove, and the side of the third reinforcing plate is connected to the side wall of the longitudinal beam groove.

[0012] Specifically, the second reinforcing plate extends to the side of the third reinforcing plate away from the side wall of the longitudinal beam groove.

[0013] The vehicle body frame, including the aforementioned subframe mounting point structure.

[0014] The vehicle includes the subframe mounting point structure or the vehicle body frame.

[0015] Compared with the prior art, the beneficial effects of this utility model on the subframe mounting point structure, body frame, and vehicle are mainly reflected in:

[0016] A fixed cavity is formed by connecting the first and second reinforcing plates. The cavity wall is connected to the outer wall of the sleeve. The first and second reinforcing plates are respectively connected to the side walls of the longitudinal beam groove, which improves the connection strength and support stiffness of the sleeve interconnected with the first and second reinforcing plates. The inner wall of the sleeve is connected to the subframe, so that the gravity of the subframe can be distributed to the longitudinal beam through the sleeve, the first and second reinforcing plates. The overall subframe mounting point structure can meet the fatigue durability requirements. Attached Figure Description

[0017] Figure 1 A structural schematic diagram of the longitudinal beam is provided for the embodiments of this application;

[0018] Figure 2 A schematic diagram of the third reinforcing plate is provided for an embodiment of this application;

[0019] Figure 3 A schematic diagram of the assembly structure of the first reinforcing plate, the second reinforcing plate, and the third reinforcing plate is provided for the embodiments of this application;

[0020] Figure 4 A schematic diagram of the structure of the first reinforcing plate is provided for an embodiment of this application;

[0021] Figure 5 A schematic diagram of the structure of the second reinforcing plate is provided for an embodiment of this application.

[0022] Figure label:

[0023] Longitudinal beam 1, longitudinal beam groove 11;

[0024] First reinforcing plate 2, first abutment 21, support 22, first connecting part 23, first arc groove 24;

[0025] Second reinforcing plate 3, second supporting part 31, circumferential part 32, second connecting part 33, second arc-shaped groove 34;

[0026] Sleeve 4, Sleeve opening 41;

[0027] Third reinforcing plate 5, through hole 51. Detailed Implementation

[0028] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0029] Example 1

[0030] This embodiment provides a subframe mounting point structure applied to the longitudinal beam 1 of a vehicle. A floor assembly is located above the longitudinal beam 1, and the top of the longitudinal beam 1 is connected to the floor of the floor assembly. A subframe (not shown in the figure) is located below the longitudinal beam 1, and the longitudinal beam 1 and the subframe are connected by bolts. The X-axis direction is defined as the straight-line travel direction of the vehicle, the Y-axis direction is defined as the direction between the left and right sides of the vehicle, and the Z-axis direction is defined as the vertical direction from the roof to the floor of the vehicle. The longitudinal beam 1 of the vehicle is arranged along the X-axis direction, and a longitudinal beam groove 11 is provided on the longitudinal beam 1. The groove opening of the longitudinal beam groove 11 is arranged upward along the Z-axis direction, and the subframe mounting point structure is disposed in the longitudinal beam groove 11. This embodiment improves the subframe mounting point structure, which will be described in detail below.

[0031] like Figures 1-5 As shown, the subframe mounting point structure includes a first reinforcing plate 2, a second reinforcing plate 3, and a sleeve 4; the first reinforcing plate 2 and the second reinforcing plate 3 are connected to form a fixing cavity, the cavity wall of the fixing cavity is connected to the outer wall of the sleeve 4, the inner wall of the sleeve 4 is connected to the subframe, and the first reinforcing plate 2 and the second reinforcing plate 3 are respectively connected to the longitudinal beam 1.

[0032] The first reinforcing plate 2 and the second reinforcing plate 3 can be connected to the longitudinal beam 1 by welding, screwing, riveting, or bonding. In this embodiment, the first reinforcing plate 2 and the second reinforcing plate 3 are fixed to the longitudinal beam 1 by welding. The first reinforcing plate 2 and the second reinforcing plate 3 can be connected by welding, screwing, riveting, or bonding. In this embodiment, the first reinforcing plate 2 and the second reinforcing plate 3 are fixed by welding.

[0033] The bottom wall of the longitudinal beam groove 11 is provided with a through hole (not marked in the figure), and the opening 41 of the sleeve 4 is correspondingly provided with the through hole so that the sleeve 4 and the subframe can be connected through the through hole by the mounting component. In this embodiment, the mounting component is a bolt, the sleeve 4 is a hollow cylindrical structure, and the mounting component and the inner wall of the sleeve 4 are threaded together.

[0034] In this embodiment, the outer wall of the sleeve 4 and the cavity wall of the fixed cavity can be connected by welding, screwing, riveting or bonding. In this embodiment, the outer wall of the sleeve 4 and the cavity wall of the fixed cavity are fixed by welding.

[0035] The subframe mounting point structure also includes a third reinforcing plate 5, with the first reinforcing plate 2, the second reinforcing plate 3, and the third reinforcing plate 5 interconnected in pairs. The second reinforcing plate 3 can extend between the first reinforcing plate 2 and the side wall of the longitudinal beam groove 11, and the second reinforcing plate 3 can extend to the side of the third reinforcing plate 5 away from the side wall of the longitudinal beam groove 11.

[0036] The bottom of the third reinforcing plate 5 is connected to the bottom wall of the longitudinal beam groove 11. The third reinforcing plate 5 is provided with a first reinforcing plate 2 and a second reinforcing plate 3 respectively. The bottom of the first reinforcing plate 2 is connected to the top of the third reinforcing plate 5, and the side of the second reinforcing plate 3 is connected to the side of the third reinforcing plate 5, so as to achieve the fixed position of the first reinforcing plate 2 and the second reinforcing plate 3 relative to the third reinforcing plate 5.

[0037] The third reinforcing plate 5 is provided with a through hole 51, which is corresponding to a through hole. At the same time, the opening 41 of the sleeve 4 is corresponding to the through hole 51. When the sleeve 4 is fixed between the first reinforcing plate 2 and the second reinforcing plate 3, the axis of the sleeve 4 is arranged along the Z-axis, and the sleeve 4 and the third reinforcing plate 5 are in a relatively perpendicular state.

[0038] The third reinforcing plate 5 extends from the bottom wall of the longitudinal beam groove 11 to the side wall of the longitudinal beam groove 11 on both sides. The third reinforcing plate 5 has a roughly U-shaped structure. The two sides of the third reinforcing plate 5 are attached to the side wall of the longitudinal beam groove 11, thereby strengthening the connection strength and support strength between the third reinforcing plate 5 and the longitudinal beam 1.

[0039] The connection between the third reinforcing plate 5 and the longitudinal beam 1 can be welding, screwing, riveting or bonding. In this embodiment, the third reinforcing plate 5 and the longitudinal beam 1 are fixed by welding.

[0040] In this embodiment, a fixed cavity is formed by connecting the first reinforcing plate 2 and the second reinforcing plate 3. The cavity wall of the fixed cavity is connected to the outer wall of the sleeve 4. The first reinforcing plate 2 and the second reinforcing plate 3 are respectively connected to the side wall of the longitudinal beam groove 11, which improves the connection strength and support stiffness of the sleeve 4 and the first reinforcing plate 2 and the second reinforcing plate 3. The inner wall of the sleeve 4 is connected to the subframe by bolts, so that the gravity of the subframe can be distributed to the longitudinal beam 1 through the sleeve 4, the first reinforcing plate 2 and the second reinforcing plate 3. The overall subframe mounting point structure can meet the fatigue durability requirements.

[0041] Example 2

[0042] This embodiment optimizes the subframe mounting point structure based on the above embodiments, and in particular provides a specific implementation method for the first reinforcing plate:

[0043] like Figure 3 , Figure 4 As shown, the first reinforcing plate 2 includes a first abutment 21, a support 22 and a first connecting part 23. The bottom of the first abutment 21 is connected to the support 22, and the support 22 is connected to the bottom wall of the longitudinal beam groove 11. The side of the first abutment 21 is connected to the first connecting part 23 extending in the X-axis direction, and the first connecting part 23 is connected to the side wall of the longitudinal beam groove 11.

[0044] In this embodiment, the first abutment 21 and the first connecting part 23 are arranged perpendicularly, and the first abutment 21 and the supporting part 22 are arranged perpendicularly. The connection between the first abutment 21 and the supporting part 22 forms an approximately L-shaped structure. Two first connecting parts 23 are provided on the first abutment 21. The two first connecting parts 23 are respectively connected to the two side walls of the longitudinal beam groove 11, so that the first reinforcing plate 2 is stably connected and fixed in the longitudinal beam groove 11.

[0045] The first abutment 21 is provided with a first arc-shaped groove 24. The arc curvature of the first arc-shaped groove 24 is adapted to the circumferential curvature of the sleeve 4. The first arc-shaped groove 24 is part of the cavity wall that forms the fixed cavity. The first arc-shaped groove 24 can abut against the outer wall of the sleeve 4 over a large area, thereby achieving the positioning and encircling function of the sleeve 4.

[0046] Example 3

[0047] This embodiment optimizes the subframe mounting point structure based on the above embodiments, and in particular provides a specific implementation method for the second reinforcing plate:

[0048] like Figure 3 , Figure 5As shown, the second reinforcing plate 3 includes a second abutment 31, a circumferential portion 32, and a second connecting portion 33. One end of the second abutment 31 is connected to the circumferential portion 32, and the other end of the second abutment 31 is connected to the second connecting portion 33. The circumferential portion 32 and the second connecting portion 33 extend in opposite directions. The circumferential portion 32 and the second connecting portion 33 are respectively connected to the side wall of the longitudinal beam groove 11.

[0049] The second abutment 31 abuts against the first abutment 21 to form a fixed cavity. A second arc-shaped groove 34 is provided on the second abutment 31, and the second arc-shaped groove 34 is opposite to the first arc-shaped groove 24. The arc curvature of the second arc-shaped groove 34 is adapted to the circumferential curvature of the sleeve 4. The second arc-shaped groove 34 is another part of the cavity wall forming the fixed cavity. The connection method between the first abutment 21 and the second abutment 31 can be screwing, welding, riveting, or bonding. In this embodiment, the first abutment 21 and the second abutment 31 are fixed by welding.

[0050] The first connecting part 23 is located above the third reinforcing plate 5. The circumferential part 32 extends along the X-axis to abut against the first connecting part 23. Specifically, the upper part of the circumferential part 32 extends between the first connecting part 23 and the side wall of the longitudinal beam groove 11. The first connecting part 23, the circumferential part 32, and the side wall of the longitudinal beam groove 11 are sequentially overlapped and connected. The lower part of the circumferential part 32 extends to the side of the third reinforcing plate 5 away from the side wall of the longitudinal beam groove 11. The circumferential part 32, the third reinforcing plate 5, and the side wall of the longitudinal beam groove 11 are sequentially overlapped and connected. The above overlapping connection can be achieved by screwing, welding, riveting, or bonding. In this embodiment, the overlapping connection is achieved by welding. The upper part of the circumferential part 32 is connected to the side wall of the first connecting part 23 and the longitudinal beam groove 11 respectively, while the lower part of the circumferential part 32 is connected to the side wall of the third reinforcing plate 5 and the longitudinal beam groove 11 respectively, which strengthens the connection strength and support rigidity of the first reinforcing plate 2, the second reinforcing plate 3 and the third reinforcing plate 5 locally, and greatly improves the fatigue resistance of the subframe mounting point structure.

[0051] The second connecting part 33 is connected to the side wall of the longitudinal beam groove 11. The connection method can be screwing, welding, riveting or bonding. In this embodiment, the second connecting part 33 is fixed to the longitudinal beam groove 11 by welding.

[0052] In this embodiment, the second abutment 31 has a roughly U-shaped structure. One end of the second abutment 31 is connected to two circumferential parts 32, and the other end of the second abutment 31 is connected to two second connecting parts 33. The two circumferential parts 32 are respectively connected to the two side walls of the longitudinal beam groove 11. Similarly, the two second connecting parts 33 are respectively connected to the two side walls of the longitudinal beam groove 11. The second abutment 31 is perpendicular to the circumferential parts 32 and the second connecting parts 33 respectively. The second reinforcing plate 3 is stably connected and fixed in the longitudinal beam groove 11.

[0053] Example 4

[0054] This embodiment provides a vehicle body frame, including the subframe mounting point structure and the vehicle's longitudinal beam 1 as described in the above embodiment. The subframe mounting point structure is disposed on the vehicle's longitudinal beam 1.

[0055] Example 5

[0056] This embodiment provides a vehicle, including the subframe mounting point structure of the above embodiments or the body frame of the above embodiments.

[0057] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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.

[0058] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "joined," "fixed," 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, an electrical connection, or a connection that allows communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0060] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A subframe mounting point structure, applied to the longitudinal beam (1) of a vehicle, characterized in that: The subframe mounting point structure includes a first reinforcing plate (2), a second reinforcing plate (3), and a sleeve (4); the first reinforcing plate (2) and the second reinforcing plate (3) are connected to form a fixed cavity, the cavity wall of the fixed cavity is connected to the outer wall of the sleeve (4), the inner wall of the sleeve (4) is connected to the subframe, and the first reinforcing plate (2) and the second reinforcing plate (3) are respectively connected to the longitudinal beam (1).

2. The subframe mounting point structure according to claim 1, characterized in that: The longitudinal beam (1) is provided with a longitudinal beam groove (11). The first reinforcing plate (2) includes a first abutment (21), a support (22) and a first connecting part (23). The bottom of the first abutment (21) is connected to the support (22). The support (22) is connected to the bottom wall of the longitudinal beam groove (11). The side of the first abutment (21) is connected to the first connecting part (23). The first connecting part (23) is connected to the side wall of the longitudinal beam groove (11).

3. The subframe mounting point structure according to claim 2, characterized in that: The second reinforcing plate (3) includes a second abutment (31), a circumferential portion (32), and a second connecting portion (33). One end of the second abutment (31) is connected to the circumferential portion (32), and the other end of the second abutment (31) is connected to the second connecting portion (33). The circumferential portion (32) and the second connecting portion (33) are respectively connected to the side wall of the longitudinal beam groove (11).

4. The subframe mounting point structure according to claim 3, characterized in that: The circumferential portion (32) extends between the first connecting portion (23) and the side wall of the longitudinal beam groove (11).

5. The subframe mounting point structure according to claim 3, characterized in that: The first abutting part (21) and the second abutting part (31) are connected to each other. The first abutting part (21) is provided with a first arc-shaped groove (24), and the second abutting part (31) is provided with a second arc-shaped groove (34). The second arc-shaped groove (34) and the first arc-shaped groove (24) are arranged opposite to each other to form the fixing cavity.

6. The subframe mounting point structure according to claim 1, characterized in that: It also includes a third reinforcing plate (5), which is disposed in the longitudinal beam groove (11) of the longitudinal beam (1), and the first reinforcing plate (2) and the second reinforcing plate (3) are respectively connected to the third reinforcing plate (5).

7. The subframe mounting point structure according to claim 6, characterized in that: The bottom of the third reinforcing plate (5) is connected to the bottom wall of the longitudinal beam groove (11), and the side of the third reinforcing plate (5) is connected to the side wall of the longitudinal beam groove (11).

8. The subframe mounting point structure according to claim 6, characterized in that: The second reinforcing plate (3) extends to the side of the third reinforcing plate (5) away from the side wall of the longitudinal beam groove (11).

9. A vehicle frame, characterized in that: Includes the subframe mounting point structure as described in any one of claims 1-8.

10. A vehicle, characterized in that: Includes the subframe mounting point structure as described in any one of claims 1-8 or the body frame as described in claim 9.

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