Auxiliary frame and vehicle

Abstract

The utility model provides an auxiliary frame and a vehicle, the auxiliary frame comprises a frame body, the frame body comprises first beam body structures which are oppositely arranged in a first direction, second beam body structures which are oppositely arranged in a second direction, and first mounting parts which are arranged at two ends of the first beam body structures; the first mounting part is used for mounting a connecting piece connected with a vehicle body; wherein the first beam body structure comprises a main beam and an auxiliary beam arranged at the bottom of the main beam, the main beam is connected with the second beam body structure, a second mounting part is arranged on the auxiliary beam, and the second mounting part is used for mounting a suspension lining connected with a power assembly. According to the auxiliary frame, due to the fact that the first beam body structure comprises the main beam and the auxiliary beam arranged at the bottom of the main beam, the overall structural strength of the auxiliary frame can be improved, and meanwhile a connecting piece connected with a vehicle body and a suspension lining used for being connected with a power assembly can be conveniently arranged on the first beam body structure.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a subframe. At the same time, the utility model also relates to a vehicle with the subframe. Background Art

[0002] At present, an automobile subframe is usually formed by stamping and welding multiple sheet metal parts or by welding pipe beams. Among them, due to the limitation of the installation position, the structure of the subframe formed by welding sheet metal parts is relatively complex and the overall strength is weak. The subframe formed by welding pipe beams is usually formed by welding left and right longitudinal beams and front and rear cross beams, and the overall strength is also weak. At the same time, it is not convenient to arrange the mounting bushings for connecting with the powertrain. Summary of the Utility Model

[0003] In view of this, the utility model aims to provide a subframe, which can have better structural strength and is also convenient for arranging mounting bushings.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] A subframe includes a frame body. The frame body includes a first beam structure arranged oppositely in a first direction, a second beam structure arranged oppositely in a second direction, and first mounting parts arranged at both ends of the first beam structure. The first mounting parts are used for mounting connectors connected with the vehicle body.

[0006] The first beam structure includes a main beam and a secondary beam arranged at the bottom of the main beam. The main beam is connected with the second beam structure. A second mounting part is arranged on the secondary beam. The second mounting part is used for mounting a mounting bushing connected with the powertrain.

[0007] Further, both ends of the secondary beam are connected with the main beam, and the middle part bulges downward, so as to form a mounting space with the main beam.

[0008] The second mounting part includes a first sleeve arranged in the middle of the secondary beam and second sleeves arranged at both ends of the secondary beam.

[0009] Further, the first sleeve is arranged in the mounting space, and the second sleeves are arranged outside the mounting space.

[0010] Further, the secondary beam includes a main body part arranged at an interval with the main beam up and down, and inclined parts arranged between the main body part and the main beam. Diagonal beams are arranged between the main body part and each side of the inclined parts.

[0011] The first sleeve is arranged between the diagonal beams on both sides and is connected with both the diagonal beams and the main body part.

[0012] Furthermore, a first reinforcing beam is provided between the top of the first sleeve and each side of the inclined beam, and a rhombus is formed by enclosing between the first reinforcing beam and the inclined beam.

[0013] Furthermore, the second mounting portion includes a third sleeve provided at the intersection of the main body portion and the inclined portion.

[0014] Furthermore, a support pipe extending downward is provided on the main beam, and the support pipe is connected to the inclined portion;

[0015] The second sleeve is provided at the bottom of the support pipe.

[0016] Furthermore, a second reinforcing beam is connected between the bottom of the second sleeve and the bottom of the third sleeve;

[0017] The second reinforcing beam is arranged in a triangular shape between the support pipe and the inclined portion.

[0018] Furthermore, a connecting sleeve is provided on the second beam structure, and the connecting sleeve is used to connect with a vehicle body member.

[0019] Compared with the prior art, the present utility model has the following advantages:

[0020] For the subframe of the present utility model, by making the first beam structure include a main beam and a sub-beam provided at the bottom of the main beam, not only can the overall structural strength of the subframe be improved, but also it is convenient to arrange the connecting members connected to the vehicle body and the mounting bushings for connecting to the powertrain on the first beam structure.

[0021] In addition, by connecting the two ends of the sub-beam to the main beam and making the middle part protrude downward, the sub-beam can have better structural strength, thereby further improving the structural strength of the subframe; and the second mounting portion includes a first sleeve located in the middle of the sub-beam and second sleeves located at both ends, and it is possible to achieve the arrangement of three-point suspension and four-point suspension by selecting to set the mounting bushings in different sleeves, so that this subframe can be applied to different vehicle models platforms.

[0022] By arranging the first sleeve in the installation space and the second sleeve outside the installation space, the distance between the first sleeve and the second sleeve can be fully increased, which is convenient for the arrangement of the first sleeve and the second sleeve on the sub-beam. The sub-beam includes a main body portion arranged at an upper and lower interval with the main beam and an inclined portion provided between the main body portion and the main beam, which is convenient for the processing and manufacturing of the sub-beam; and by providing inclined beams between the main body portion and each side of the inclined portion and arranging the first sleeve between the inclined beams on both sides, not only can the structural strength of the sub-beam and the overall subframe be further improved, but also the setting strength of the first sleeve can be improved and the vibration transmission can be reduced.

[0023] Secondly, the second installation part includes a third sleeve disposed at the intersection of the main body part and the inclined part, which can provide more layout diversity for the suspension bushing, thereby further improving the diversity of the subframe, enabling it to adapt to more vehicle platforms and having better versatility. A first reinforcing beam is provided between the top of the first sleeve and each side inclined beam, and a rhombus is formed by enclosing the first reinforcing beam and the inclined beam, which can further improve the structural strength of the secondary beam and the subframe, and further improve the setting strength of the first sleeve and reduce vibration transmission.

[0024] In addition, by providing a support tube connected to the inclined part and disposing the second sleeve at the bottom of the support tube, the setting strength of the second sleeve can be improved and vibration transmission can be reduced. By connecting a second reinforcing beam between the bottom of the second sleeve and the bottom of the third sleeve and arranging the second reinforcing beam in a triangular shape with the support tube and the inclined part, the installation stiffness of the second sleeve and the third sleeve can be enhanced by utilizing the good stability of the triangle, and vibration transmission can be reduced. By providing a connecting sleeve on the second beam structure, other body components can be installed according to requirements, which can improve the functional diversity of the subframe.

[0025] Another object of the present invention is to provide a vehicle, on which the above-mentioned subframe is provided.

[0026] The vehicle of the present invention has all the beneficial effects of the above-mentioned subframe, which will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 is a schematic structural diagram of the frame body according to an embodiment of the present invention from a first perspective;

[0029] Figure 2 is a schematic structural diagram of the frame body according to an embodiment of the present invention from a second perspective;

[0030] Figure 3 is a schematic structural diagram of the frame body according to an embodiment of the present invention from a third perspective;

[0031] Figure 4 is a schematic structural diagram of the frame body according to an embodiment of the present invention from a fourth perspective;

[0032] Figure 5 is a schematic structural diagram of the frame body according to an embodiment of the present invention from a fifth perspective;

[0033] Figure 6 A schematic structural diagram of a subframe according to an embodiment of the present invention;

[0034] Figure 7 Another schematic structural diagram of a subframe according to an embodiment of the present invention;

[0035] Figure 8 Yet another schematic structural diagram of a subframe according to an embodiment of the present invention.

[0036] Explanation of reference numerals:

[0037] 1. First beam structure; 2. Second beam structure; 3. Installation sleeve; 4. First sleeve; 5. Second sleeve; 6. Third sleeve; 7. Inclined beam; 8. First reinforcing beam; 9. Second reinforcing beam; 10. Support pipe; 11. Connection sleeve; 12. Mounting bushing; 13. Installation bushing;

[0038] 101. Main beam; 102. Auxiliary beam; 1021. Main body part; 1022. Inclined part. Detailed implementation manners

[0039] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0040] In the description of the present invention, it should be noted that the orientation terms such as "upper, lower, left, right, front, and back" used in this embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the vehicle. Among them, the up-down direction of the vehicle is also the height direction (Z direction) of the vehicle, the front-back direction of the vehicle is also the length direction (X direction) of the vehicle, and the left-right direction of the vehicle is also the width direction (Y direction) of the vehicle. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0041] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific situations.

[0042] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0043] This embodiment relates to a subframe, which includes a frame body. The frame body includes a first beam structure 1 arranged oppositely in a first direction, a second beam structure 2 arranged oppositely in a second direction, and first mounting parts provided at both ends of the first beam structure 1. The first mounting parts are used to mount connectors connected to the vehicle body. Among them, the first beam structure 1 includes a main beam 101 and a secondary beam 102 provided at the bottom of the main beam 101. The main beam 101 is connected to the second beam structure 2, and a second mounting part is provided on the secondary beam 102. The second mounting part is used to mount a mounting bushing 12 connected to the powertrain.

[0044] For the subframe of this embodiment, by making the first beam structure 1 include the main beam 101 and the secondary beam 102 provided at the bottom of the main beam 101, not only can the overall structural strength of the subframe be improved, but also it is convenient to arrange connectors connected to the vehicle body and the mounting bushing 12 connected to the powertrain on the first beam structure 1.

[0045] Based on the above overall introduction, an exemplary structure of the frame body of the subframe of this embodiment is referred to Figures 1 to 5 as shown in, and its overall shape is generally rectangular. The first direction is the Figure 5 left - right direction shown in the Figure 5 state, and the second direction is the up - down direction in the Figure 5 state. Specifically in implementation, the first direction can be the vehicle length direction or the vehicle width direction. Here, for the convenience of understanding this embodiment, the first beam structure 1 will be introduced first. Among them, as

[0046] shown in, the main beam 101 of the first beam structure 1 is integrally arc - shaped with the middle part bent towards the inside of the subframe, and includes an intermediate part extending in the second direction and end parts provided at both ends of the intermediate part, and each end part is arc - shaped. Figure 6 For better vibration absorption effect, the connectors connected to the vehicle body usually adopt the mounting bushing 13 in the prior art, and the overall structure of the mounting bushing 13 is the same as that of the mounting bushing 12. And as

[0047] shown in, it generally includes an inner tube, an outer tube sleeved outside the inner tube, and a rubber body vulcanized between the inner tube and the outer tube. Therefore, as a preferred embodiment, the first mounting part of this embodiment is specifically a mounting sleeve 3 provided at both ends of the main beam 101, which is a cylindrical shape adapted to the outer tube. Among them, during specific assembly, the mounting sleeve 3 can be fixed first with a tooling, and then the mounting bushing 13 can be press - fitted into the mounting sleeve 3 with interference by a press - fitting device.

[0047] In addition, in combination with Figure 1 and Figure 2As shown, the two ends of the auxiliary beam 102 of this embodiment are connected to the main beam 101, and the middle part bulges downward, forming an installation space with the main beam 101. Moreover, as an above-mentioned embodiment, the cross-sections of the main beam 101 and the auxiliary beam 102 are both circular. Furthermore, the main beam 101 and the auxiliary beam 102 can be formed by any one of the processes of sheet metal stamping, bending, aluminum alloy extrusion or drawing. The second installation part specifically includes a first sleeve 4 provided in the middle of the auxiliary beam 102 and a second sleeve 5 provided at both ends of the auxiliary beam 102. Here, it should be noted that in addition to being set as circular, the cross-sections of the main beam 101 and the auxiliary beam 102 can also be set as rectangular.

[0048] In this embodiment, by connecting the two ends of the auxiliary beam 102 to the main beam 101 and making the middle part bulge downward, the auxiliary beam 102 can have better structural strength, thereby further improving the structural strength of the subframe. And the second installation part includes the first sleeve 4 located in the middle of the auxiliary beam 102 and the second sleeve 5 located at both ends, which can realize the layout of three-point suspension and four-point suspension by selecting to set the suspension bushing 12 in different sleeves, making this subframe applicable to different vehicle models platforms.

[0049] Among them, the structure of the suspension bushing 12 is the same as the overall structure of the above-mentioned mounting bushing 13, and its specific specification dimensions can be determined according to the design requirements and will not be elaborated here. Moreover, as a preferred implementation manner, the first sleeve 4 and the second sleeve 5 of this embodiment are both cylindrical, and the inner diameter of the first sleeve 4 is smaller than the inner diameter of the second sleeve 5 to be able to install suspension bushings 12 of different specifications, thereby improving the design diversity of the suspension. In addition, as Figure 2 shown, as a further implementation manner, the first sleeve 4 is provided inside the installation space, and the second sleeve 5 is provided outside the installation space. With this setting, the distance between the first sleeve 4 and the second sleeve 5 can be fully increased, facilitating the layout of the first sleeve 4 and the second sleeve 5 on the auxiliary beam 102.

[0050] Combined with Figure 1 and Figure 2As shown, as a further embodiment, the secondary beam 102 of this embodiment includes a main body portion 1021 arranged at an interval above and below the main beam 101, and an inclined portion 1022 provided between the main body portion 1021 and the main beam 101. And diagonal beams 7 are provided between the main body portion 1021 and each side inclined portion 1022. Among them, the above-mentioned first sleeve 4 is arranged between the two side diagonal beams 7 and is connected to both the diagonal beam 7 and the main body portion 1021. In this embodiment, by including the main body portion 1021 arranged at an interval above and below the main beam 101 and the inclined portion 1022 provided between the main body portion 1021 and the main beam 101 in the secondary beam 102, it is convenient for the processing and manufacturing of the secondary beam 102. And by providing diagonal beams 7 between the main body portion 1021 and each side inclined portion 1022 and arranging the first sleeve 4 between the two side diagonal beams 7, not only can the structural strength of the secondary beam 102 and the entire subframe be further improved, but also the installation strength of the first sleeve 4 can be improved, reducing vibration transmission.

[0051] Continuing to refer to Figure 2 As shown, more specifically, the main body portion 1021 of this embodiment is linear and extends in the second direction, while the inclined portion 1022 is linear and arranged at an angle with the main body portion 1021. Thus, after the secondary beam 102 is connected to the main beam 101, it encloses a trapezoid, and the characteristic that a trapezoid is not easily deformed can be utilized to improve the structural strength of the first beam structure 1. And the inclined portion 1022 is specifically connected to the end portion of the main beam 101, and the advantage of the large structural strength of the end portion can be utilized to further enhance the structural strength of the subframe.

[0052] Based on the above structure of the secondary beam 102, as a further embodiment, in combination with Figures 1 to 4 As shown, the second mounting portion of this embodiment further includes a third sleeve 6 provided at the intersection of the main body portion 1021 and the inclined portion 1022. Thus, there can be more layout diversities for the suspension bushing 12, thereby further improving the diversity of the subframe, enabling it to adapt to more vehicle platforms and having better versatility. Among them, the third sleeve 6 is also cylindrical as a whole, and a limiting convex ring is provided at one end thereof to limit the press-fitting displacement of the suspension bushing 12. And, as a preferred embodiment, the inner diameters of the third sleeve 6, the first sleeve 4, and the second sleeve 5 increase in sequence.

[0053] Thus, when using the following Figure 8When the three-point suspension arrangement shown in the figure is adopted, that is, suspension bushings 12 are respectively arranged in the two second sleeves 5 of the front auxiliary beam 102 along the front-rear direction of the whole vehicle, and in the first sleeve 4 and the two third sleeves 6 of the rear auxiliary beam 102. Thus, a layout form of single-point suspension with additional auxiliary suspension can be formed, realizing the layout design of the secondary vibration isolation of the suspension system, and improving the NVH (Noise, Vibration, Harshness), handling stability, durability performance and driving experience of the whole vehicle.

[0054] Continue to refer to Figures 1 to 4 As shown in the figure, as a further implementation manner, a first reinforcing beam 8 is provided between the top of the first sleeve 4 and each side inclined beam 7, and a rhombus is formed by enclosing between the first reinforcing beam 8 and the inclined beam 7. By setting the first reinforcing beam 8, the structural strength of the auxiliary beam 102 and the subframe can be further improved, and the setting strength of the first sleeve 4 can be further increased, reducing vibration transmission. In addition, as a preferred embodiment, for the convenience of connecting the first reinforcing beam 8 with the first sleeve 4 and the inclined beam 7, the cross-section of the first reinforcing beam 8 is a flat rectangular shape. Of course, it is also feasible to set the cross-section of the first reinforcing beam 8 as a circle.

[0055] As Figure 2 As shown in the figure, in this embodiment, in order to achieve better use effects, as a further implementation manner, a support pipe 10 extending downward is provided on the main beam 101, the support pipe 10 is connected to the inclined part 1022, and the above-mentioned second sleeve 5 is specifically arranged at the bottom of the support pipe 10. At this time, by setting the support pipe 10 connected to the inclined part 1022 and arranging the second sleeve 5 at the bottom of the support pipe 10, the setting strength of the second sleeve 5 can be improved, reducing vibration transmission. Among them, as a preferred embodiment, as Figure 2 As shown in the figure, the cross-section of the support pipe 10 is circular, it is attached to one side of the inclined beam 7 and connected to the inclined beam 7. It can be understood that the cross-section of the support pipe 10 can be set as a rectangle or other shapes in addition to being set as a circle.

[0056] Combined with Figures 2 to 4 As shown in the figure, as a further implementation manner, a second reinforcing beam 9 is connected between the bottom of the second sleeve 5 and the bottom of the third sleeve 6. And the second reinforcing beam 9 and the support pipe 10 and the inclined part 1022 are arranged in a triangle. Such a setting can utilize the characteristic that a triangle has good stability to improve the installation stiffness of the second sleeve 5 and the third sleeve 6 and reduce vibration transmission. At this time, for the convenience of connecting with the second sleeve 5 and the third sleeve 6, as a preferred embodiment, the cross-section of the second reinforcing beam 9 is also a flat rectangular shape. Of course, it is also feasible to set the cross-section of the second reinforcing beam 9 as a circle.

[0057] In addition, combined with Figure 1 andFigure 5 As shown, as a preferred embodiment, the second beam structure 2 is integrally in the shape of a long strip extending in the first direction, and bending portions bent inwardly into the subframe are respectively provided at both ends thereof. Moreover, the second beam structure 2 is specifically connected to the main beam 101 of the first beam structure 1 through the bending portions. By adopting the above structure, the second beam structure 2 of this embodiment not only has good structural strength, but also can avoid the mounting sleeve 3 to be connected to the first beam structure 1.

[0058] In addition, as a preferred embodiment, the cross-section of the second beam structure 2 is circular, and specifically, any one of sheet metal stamping, bending forming, aluminum alloy extrusion or drawing process can be used for forming. Here, it should be noted that in addition to being set as circular, the cross-section of the second beam structure 2 can also be set as rectangular. In addition, as Figure 5 As shown, as a preferred embodiment, there are three connecting sleeves 11 arranged at intervals along the length direction of the second beam structure 2 in this embodiment. Of course, in addition to being set as three, the number of the connecting sleeves 11 can also be set as other numbers.

[0059] In this embodiment, as Figure 1 As shown, to facilitate the connection of the connecting sleeve 11 to other vehicle body components, both ends of the connecting sleeve 11 protrude relative to the second beam structure 2. And in specific implementation, the connecting sleeve 11 can be welded to the second beam structure 2.

[0060] Based on the above overall description, by adopting the above structure, the subframe of this embodiment can realize the diversity of the suspension arrangement by selecting to install the suspension bushing 12 in different sleeves. For example, as Figure 6 As shown, the suspension bushing 12 can be installed only in the second sleeve 5 of each auxiliary beam 102, or as Figure 7 As shown, the suspension bushing 12 can be installed in the two second sleeves 5 of one auxiliary beam 102 and the first sleeve 4 of the other auxiliary beam 102, or as Figure 8 As shown, the suspension bushing 12 can be respectively arranged in the two second sleeves 5 of one auxiliary beam 102, and the first sleeve 4 and the two third sleeves 6 of the other auxiliary beam 102 to form a single-point suspension to increase the arrangement form of the auxiliary suspension.

[0061] Thus, based on factors such as the platform vehicle model positioning, the layout position of the powertrain engine compartment, multiple powertrains, NVH, handling stability, durability performance, and the uniform force bearing of the bushing load, the assembly direction of the subframe can be changed to realize the change of the arrangement direction of the suspension bushing 12, thereby enhancing the diversified characteristics and advantages of the subframe, facilitating the construction and building of the platformization and serialization to the greatest extent, realizing the differential arrangement of the suspension, broad adaptability and compatibility, reducing the development and reliability verification costs, and increasing the platformization rate.

[0062] This embodiment also relates to a vehicle, on which the above-mentioned subframe is provided.

[0063] The vehicle of this embodiment has all the beneficial effects of the above-mentioned subframe, which will not be elaborated here.

[0064] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A subframe, characterized in that: The frame body comprises a frame body, the frame body comprising a first beam structure (1) arranged relative to each other in a first direction, a second beam structure (2) arranged relative to each other in a second direction, and a first mounting portion provided at both ends of the first beam structure (1), the first mounting portion being used for mounting a connecting piece connected to a vehicle body; The first beam structure (1) comprises a main beam (101) and a sub-beam (102) arranged at the bottom of the main beam (101), and the main beam (101) is connected to the second beam structure (2), and a second mounting portion is provided on the sub-beam (102), and the second mounting portion is used to mount a suspension bushing (12) connected to a powertrain.

2. The subframe according to claim 1, characterized in that: The two ends of the auxiliary beam (102) are connected to the main beam (101), the middle portion protrudes downward, and forms an installation space with the main beam (101); The second mounting portion comprises a first sleeve (4) arranged at the middle of the sub-beam (102), and a second sleeve (5) arranged at both ends of the sub-beam (102).

3. The subframe according to claim 2, characterized in that: The first sleeve (4) is arranged in the installation space, and the second sleeve (5) is arranged outside the installation space.

4. The subframe according to claim 3, characterized in that: The auxiliary beam (102) comprises a main body portion (1021) arranged at an interval above and below the main beam (101), and an inclined portion (1022) arranged between the main body portion (1021) and the main beam (101), and an inclined beam (7) is arranged between the main body portion (1021) and the inclined portion (1022) on each side; The first sleeve (4) is arranged between the inclined beams (7) on both sides, and is connected to both the inclined beams (7) and the main body (1021).

5. The subframe according to claim 4, characterized in that: A first reinforcing beam (8) is provided between the top of the first sleeve (4) and the inclined beams (7) on each side, and a rhombus is formed between the first reinforcing beam (8) and the inclined beams (7).

6. The subframe according to claim 4, characterized in that: The second mounting portion comprises a third sleeve (6) arranged at the intersection of the main body portion (1021) and the inclined portion (1022).

7. The subframe according to claim 6, characterized in that: The main beam (101) is provided with a support pipe (10) extending downward, and the support pipe (10) is connected to the inclined portion (1022); The second sleeve (5) is arranged at the bottom of the support tube (10).

8. The subframe according to claim 7, characterized in that: A second reinforcing beam (9) is connected between the bottom of the second sleeve (5) and the bottom of the third sleeve (6); The second reinforcing beam (9), the supporting tube (10) and the inclined portion (1022) are arranged in a triangle.

9. The subframe according to any one of claims 1 to 8, characterized in that: The second beam structure (2) is provided with a connecting sleeve (11), and the connecting sleeve (11) is used to be connected to a vehicle body component.

10. A vehicle, characterized in that: The vehicle is provided with the subframe according to any one of claims 1 to 9.

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