Auxiliary frame swing arm supporting device and automobile

Abstract

The utility model discloses an auxiliary frame swing arm supporting device and an automobile, the auxiliary frame swing arm supporting device comprises a longitudinal beam, a cross beam, a first supporting piece and a second supporting piece, and the end portion of the cross beam is fixedly connected with the first side of the longitudinal beam. The first end of the first supporting piece is fixedly connected with the cross beam and the longitudinal beam. The first end of the second supporting piece is fixedly connected with the longitudinal beam, and the second supporting piece is fixedly connected with the first supporting piece. According to the auxiliary frame swing arm supporting device, the first end of the first supporting piece is fixedly connected with the cross beam and the longitudinal beam, that is, the longitudinal beam and the cross beam are fixedly connected, the longitudinal beam and the cross beam are further connected through the first supporting piece and the second supporting piece, the overall supporting strength of the auxiliary frame swing arm supporting device is improved, and then the reliability of an auxiliary frame is improved.

Description

Technical Field

[0001] This utility model relates to the field of support equipment technology, and in particular to a subframe swing arm support device and an automobile. Background Technology

[0002] The subframe is a crucial component of the front and rear axle skeleton. It is not a complete vehicle frame, but rather a support structure that holds the front and rear axles and suspension. The axles and suspension are connected to the vehicle body frame (commonly known as the "main frame") through it, hence the name "subframe." The most critical load-bearing component of the subframe is the control arm mounting bracket, which needs to withstand loads from various operating conditions of the control arms, requiring high structural rigidity and reliability.

[0003] like Figure 1 and Figure 2 As shown, the support of the upper swing arm on the subframe is designed as an integrated U-shaped stamped structure 01. The U-shaped stamped structure 01 is provided with a mounting boss 0102. The corner of the U-shaped stamped structure 01 is fixedly connected to the outer side of the longitudinal beam 02 at the connection position 04.

[0004] The U-shaped stamping structure 01 is connected to the longitudinal beam 02 through the flange 0101. The overall support strength is poor and it cannot provide a large lateral stiffness. The end 3 of the overlap between the bracket and the longitudinal beam 02 is prone to stress concentration. When subjected to a large load, the parts are prone to strength problems, which affects the reliability of the subframe.

[0005] Therefore, how to improve the reliability of the subframe is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a subframe swing arm support device and an automobile to improve the reliability of the subframe.

[0007] The subframe swing arm support device provided in this application includes:

[0008] Longitudinal beam;

[0009] A crossbeam, the end of which is fixedly connected to the first side of the longitudinal beam;

[0010] A first support member, the first end of which is fixedly connected to the crossbeam and the longitudinal beam;

[0011] The second support member has its first end fixedly connected to the longitudinal beam, and the second support member is fixedly connected to the first support member.

[0012] Optionally, in the above-mentioned subframe swing arm support device, the first support member includes:

[0013] A first connecting plate, the first end of which is fixedly connected to the side wall of the longitudinal beam away from the transverse beam;

[0014] The second connecting plate has its first end fixedly connected to the end face of the crossbeam;

[0015] The third connecting plate has its first end fixedly connected to the end face of the longitudinal beam. The end face of the longitudinal beam and the side wall of the longitudinal beam are two adjacent surfaces. The opposite ends of the third connecting plate are respectively connected to the first connecting plate and the second connecting plate. The first connecting plate, the second connecting plate and the third connecting plate form a U-shaped plate.

[0016] Optionally, in the above-mentioned subframe swing arm support device, the lengths of the first connecting plate and the second connecting plate gradually decrease along a direction perpendicular to and away from the third connecting plate.

[0017] Optionally, in the above-mentioned subframe swing arm support device,

[0018] The angle of the second support member is isolated from the crossbeam and the longitudinal beam;

[0019] And / or, the angled position of the first support member is isolated from the crossbeam and the longitudinal beam.

[0020] Optionally, in the above-mentioned subframe swing arm support device, the second support member is fixedly connected to the crossbeam.

[0021] Optionally, in the above-mentioned subframe swing arm support device, the second support member includes:

[0022] The fourth connecting plate, the first support member and the crossbeam are both fixedly connected to the fourth connecting plate;

[0023] The fifth connecting plate, the first end of which is fixedly connected to the side wall of the longitudinal beam away from the transverse beam;

[0024] The sixth connecting plate has its first end fixedly connected to the end face of the longitudinal beam and its second end fixedly connected to the side of the longitudinal beam near the crossbeam; the fourth connecting plate, the sixth connecting plate and the fifth connecting plate are connected in sequence to form a Z-shaped plate.

[0025] Optionally, in the above-mentioned subframe swing arm support device, the length of the fifth connecting plate gradually decreases along a direction perpendicular to and away from the sixth connecting plate.

[0026] Optionally, in the above-mentioned subframe swing arm support device, the second support member and / or the first support member are integrally formed structures.

[0027] Optionally, in the above-mentioned subframe swing arm support device, the angle positions of the first support member and / or the second support member are smoothly transitioned.

[0028] An automobile includes a subframe swing arm support device, wherein the subframe swing arm support device is any one of the subframe swing arm support devices described above.

[0029] In the above technical solution, the subframe swing arm support device provided by this utility model includes a longitudinal beam, a crossbeam, a first support member, and a second support member. The end of the crossbeam is fixedly connected to the first side of the longitudinal beam. The first end of the first support member is fixedly connected to the crossbeam and the longitudinal beam. The first end of the second support member is fixedly connected to the longitudinal beam, and the second support member is fixedly connected to the first support member.

[0030] As can be seen from the above description, in the subframe swing arm support device provided in this application, the first end of the first support member is fixedly connected to the crossbeam and the longitudinal beam. That is, not only are the longitudinal beam and the crossbeam fixedly connected, but the longitudinal beam and the crossbeam are also connected through the first support member and the second support member, which improves the overall support strength of the subframe swing arm support device and thus improves the reliability of the subframe. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of a traditional subframe swing arm support device.

[0033] Figure 2 A schematic diagram of the traditional subframe swing arm support device from another perspective;

[0034] Figure 3 This is a force diagram of the subframe swing arm support device provided in an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the subframe swing arm support device provided in an embodiment of the present utility model;

[0036] Figure 5 A schematic diagram of the subframe swing arm support device from another perspective provided in this embodiment of the utility model;

[0037] Figure 6 This is a schematic diagram showing the specific arrangement of the first and second connectors provided in an embodiment of the present utility model.

[0038] in Figure 1-6 middle:

[0039] 01-U-shaped stamping part, 0101-flanged edge, 0102-bore, 02-longitudinal beam, 03-crossbeam, 04-connection position;

[0040] 1-Second support member, 101-Second protrusion, 102-Sixth connecting plate, 103-Fifth connecting plate, 104-Fourth connecting plate;

[0041] 2-First support member, 201-First connecting plate, 202-Second connecting plate, 203-First protrusion, 204-Third connecting plate;

[0042] 3-Longitudinal beam, 4-Crossbeam, 5-First connection position, 6-Second connection position, 7-Third connection position. Detailed Implementation

[0043] The core of this utility model is to provide a subframe swing arm support device and a car to improve the reliability of the subframe.

[0044] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0045] Please refer to Figures 3 to 6 .

[0046] In one specific embodiment, the subframe swing arm support device provided by this utility model includes a longitudinal beam 3, a crossbeam 4, a first support member 2, and a second support member 1. The end of the crossbeam 4 is fixedly connected to the first side of the longitudinal beam 3. In order to improve the connection stability, it is welded to the longitudinal beam 3 laterally.

[0047] The first end of the first support member 2 is fixedly connected to the crossbeam 4 and the longitudinal beam 3. Specifically, the crossbeam 4 and the longitudinal beam 3 are both welded to the first support member 2.

[0048] In one specific embodiment, the first support member 2 can be an L-shaped curved plate.

[0049] like Figure 6 As shown, in another specific embodiment, the first support member 2 includes a first connecting plate 201, a second connecting plate 202, and a third connecting plate 204, which form a U-shaped plate. The first end of the first connecting plate 201 is fixedly connected to the side wall of the longitudinal beam 3 away from the transverse beam 4. Specifically, the side of the first connecting plate 201 along its length is fixedly connected to the side wall of the longitudinal beam 3.

[0050] The first end of the second connecting plate 202 is fixedly connected to the end face of the crossbeam 4. Preferably, the first end of the second connecting plate 202 is integrally fixedly connected to the end face of the crossbeam 4 extending along the width direction.

[0051] The first end of the third connecting plate 204 is fixedly connected to the end face of the longitudinal beam 3. The end face of the longitudinal beam 3 and the side wall of the longitudinal beam 3 are two adjacent surfaces. The opposite ends of the third connecting plate 204 are respectively connected to the first connecting plate 201 and the second connecting plate 202. Specifically, the third connecting plate 204, the first connecting ring and the second connecting plate 202 can be connected by welding.

[0052] To reduce overall weight while maintaining strength, it is preferable that the lengths of the first connecting plate 201 and the second connecting plate 202 gradually decrease along a direction perpendicular to and away from the third connecting plate 204. For example, both the first connecting plate 201 and the second connecting plate 202 can be triangular plate structures.

[0053] To improve assembly efficiency, the first support component 2 is a one-piece molded structure. For example, the second support component 1 is formed by casting or stamping.

[0054] The first end of the second support member 1 is fixedly connected to the longitudinal beam 3, and the second support member 1 is fixedly connected to the first support member 2. Specifically, the second support member 1 and the longitudinal beam 3 can be welded together.

[0055] As can be seen from the above description, in the subframe swing arm support device provided in the specific embodiment of this application, the first end of the first support member 2 is fixedly connected to the crossbeam 4 and the longitudinal beam 3. That is, not only are the longitudinal beam 3 and the crossbeam 4 fixedly connected, but the longitudinal beam 3 and the crossbeam 4 are also connected through the first support member 2 and the second support member 1, which improves the overall support strength of the subframe swing arm support device and thus improves the reliability of the subframe.

[0056] To further improve the reliability of the subframe, the second support 1 is fixedly connected to the crossbeam 4, specifically, the two can be fixed by welding.

[0057] like Figure 5 As shown, in one specific embodiment, the second support member 1 includes a fourth connecting plate 104, a fifth connecting plate 103, and a sixth connecting plate 102. Figure 5 As shown, both the first support member 2 and the crossbeam 4 are fixedly connected to the fourth connecting plate 104. The connection position between the fourth connecting plate 104 and the first support member 2 is the first connection position 5. The connection position between the fourth connecting plate 104 and the crossbeam 4 is the second connection position 6.

[0058] The first end of the fifth connecting plate 103 is fixedly connected to the side wall of the longitudinal beam 3 away from the transverse beam 4. To reduce weight while ensuring connection strength, the length of the fifth connecting plate 103 gradually decreases along the direction perpendicular to the direction away from the sixth connecting plate 102. Specifically, the fifth connecting plate 103 can be a triangular plate.

[0059] The first end of the sixth connecting plate 102 is fixedly connected to the end face of the crossbeam 4, and the second end of the sixth connecting plate 102 is fixedly connected to the side of the longitudinal beam 3 near the crossbeam 4, specifically at the third connecting position 7.

[0060] The fourth connecting plate 104, the sixth connecting plate 102, and the fifth connecting plate 103 are connected sequentially to form a Z-shaped plate. Specifically, the overall thickness of the Z-shaped plate can be the same.

[0061] like Figure 3 As shown, the first support member 2 and the second support member 1 of the subframe swing arm support device are mainly subjected to forces in the X direction (longitudinal force) and the Y direction (lateral force). Therefore, the subframe swing arm support device needs structural reinforcement in both the longitudinal and lateral directions. Figure 4 As shown, the first support member 2 and the second support member 1 make the whole body overlap with the longitudinal beam 3 and the transverse beam 4.

[0062] In a specific configuration, the sixth connecting plate 102 has a second protrusion 101, and the third connecting plate 204 has a first protrusion 203. Specifically, the first protrusion 203 and the second protrusion 101 are arranged opposite to each other, and both are formed by stamping, thereby simplifying the processing. The first protrusion 203 and the second protrusion 101 can serve as mounting positions for other structures.

[0063] In this application, both the first support member 2 and the second support member 1 overlap with the outer edge of the longitudinal beam 3. That is, both the fifth connecting plate 103 and the first connecting plate 201 are fixedly connected to the longitudinal beam 3. Increasing the elongation of the flanges of the first support member 2 and the second support member 1 in the longitudinal direction can effectively increase the longitudinal support of the bracket formed by the first support member 2 and the second support member 1, thereby improving the required longitudinal stiffness of the bracket. At the same time, the elongation transition of the fifth connecting plate 103 and the first connecting plate 201 can effectively avoid stress concentration at the overlap ends of the fifth connecting plate 103 and the first connecting plate 201 with the longitudinal beam 3. The method of fixing the second connecting plate 202 to the crossbeam 4 by overlapping further improves the lateral stiffness of the bracket and the longitudinal beam 3.

[0064] In its specific design, the first support member 2 and the second support member 1 are overlapped and then welded together, making the overall structure of the support frame stronger and improving its overall rigidity. Both the first support member 2 and the second support member 1 are isolated from the connection points of the longitudinal beam 3 and the transverse beam 4. Specifically, the bends in both the first support member 2 and the second support member 1 are isolated from the longitudinal beam 3 and the transverse beam 4, effectively avoiding stress concentration at the bends and improving the durability and reliability of the support frame. The overlap and fixation of the second support member 1 with the transverse beam 4 increases the longitudinal support of the support frame, improving the rigidity and strength of the components.

[0065] To improve assembly efficiency, the second support component 1 is a one-piece molded structure. For example, the second support component 1 is formed by casting or stamping.

[0066] Based on the above solutions, to avoid stress concentration, preferably, the corner positions of the first support member 2 and the second support member 1 have smooth transitions. For example, the corner positions of the first support member 2 and the second support member 1 have rounded transitions.

[0067] This application splits the traditional U-shaped stamping part into a first support 1 and a second support 2. By analyzing the stress characteristics and stiffness and strength requirements of the support, the advantages of the split structure can be utilized to make the design more reasonable.

[0068] The first support member 2 and the second support member 1 provided in this application are processed by stamping process, which makes the overall processing simple. The matching and overlapping of the first support member 2 and the second support member 1 is stable and reliable. The bracket has high rigidity and strength performance and is suitable for vehicles with large loads and high rigidity requirements.

[0069] This application provides an automobile, including a subframe control arm support device, wherein the subframe control arm support device is any of the aforementioned subframe control arm support devices. The specific structure of the subframe control arm support device has been described above; this application includes the aforementioned subframe control arm support device and also achieves the aforementioned technical effects.

[0070] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0071] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A subframe swing arm support device, characterized in that, include: Longitudinal beam (3); A crossbeam (4), the end of which is fixedly connected to the first side of the longitudinal beam (3); The first support member (2) is fixedly connected at its first end to the crossbeam (4) and the longitudinal beam (3); The second support member (1) is fixedly connected at its first end to the longitudinal beam (3) and fixedly connected to the first support member (2).

2. The subframe swing arm support device according to claim 1, characterized in that, The first support member (2) includes: The first connecting plate (201) has its first end fixedly connected to the side wall of the longitudinal beam (3) away from the transverse beam (4); The second connecting plate (202) has its first end fixedly connected to the end face of the crossbeam (4); The third connecting plate (204) has its first end fixedly connected to the end face of the longitudinal beam (3). The end face of the longitudinal beam (3) and the side wall of the longitudinal beam (3) are two adjacent surfaces. The opposite ends of the third connecting plate (204) are respectively connected to the first connecting plate (201) and the second connecting plate (202). The first connecting plate (201), the second connecting plate (202) and the third connecting plate (204) form a U-shaped plate.

3. The subframe swing arm support device according to claim 2, characterized in that, The lengths of the first connecting plate (201) and the second connecting plate (202) gradually decrease along a direction perpendicular to and away from the third connecting plate (204).

4. The subframe swing arm support device according to claim 1, characterized in that, The angled position of the second support member (1) is isolated from the crossbeam (4) and the longitudinal beam (3); And / or, the angled position of the first support member (2) is isolated from the crossbeam (4) and the longitudinal beam (3).

5. The subframe swing arm support device according to claim 1, characterized in that, The second support member (1) is fixedly connected to the crossbeam (4).

6. The subframe swing arm support device according to claim 5, characterized in that, The second support member (1) includes: The fourth connecting plate (104) is fixedly connected to the first support member (2) and the crossbeam (4); The fifth connecting plate (103) has its first end fixedly connected to the side wall of the longitudinal beam (3) away from the transverse beam (4); The sixth connecting plate (102) has its first end fixedly connected to the end face of the longitudinal beam (3) and its second end fixedly connected to the side of the longitudinal beam (3) near the cross beam (4); the fourth connecting plate (104), the sixth connecting plate (102) and the fifth connecting plate (103) are connected in sequence to form a Z-shaped plate.

7. The subframe swing arm support device according to claim 6, characterized in that, The length of the fifth connecting plate (103) gradually decreases along a direction perpendicular to the direction away from the sixth connecting plate (102).

8. The subframe swing arm support device according to claim 1, characterized in that, The second support member (1) and / or the first support member (2) are integrally formed structures.

9. The subframe swing arm support device according to any one of claims 1-8, characterized in that, The angle positions of the first support member (2) and / or the second support member (1) are smoothly transitioned.

10. An automobile, comprising a subframe swing arm support device, characterized in that, The subframe swing arm support device is the subframe swing arm support device according to any one of claims 1-9.

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