Swing arm support of auxiliary frame

Abstract

The utility model relates to a swing arm support of an auxiliary frame, and belongs to the field of auxiliary frames, the swing arm support comprises a support main body, the support main body comprises two oppositely arranged supporting plates and a connecting plate connected to the top surfaces of the two supporting plates; the supporting plates are provided with welding cambered surfaces attached to the auxiliary frame, the two supporting plates are both welded and fixed to the auxiliary frame, the supporting plates are further provided with mounting holes penetrating through the two side faces of the supporting plates, and the supporting plates are provided with supporting protruding parts which are vertically arranged on the two sides of the mounting holes and protrude in the direction away from the supporting plates. And the supporting convex part and the bracket main body are of an integrally formed structure. The swing arm support has the effect of improving the structural strength of the swing arm support.

Description

Technical Field

[0001] This application relates to the field of subframes, and more particularly to a swing arm bracket for a subframe. Background Technology

[0002] The control arm bracket is a crucial component of the subframe, used to support and secure the control arm, ensuring a stable connection between the control arm and the wheel and body. Therefore, to guarantee a stable connection of the control arm on the control arm bracket, the bracket needs to possess ideal structural strength. The control arm bracket consists of two opposing mounting plates: a first mounting plate and a second mounting plate. To improve the structural strength of the control arm bracket, most manufacturers currently weld U-shaped gaskets onto the first and second mounting plates, increasing the thickness to enhance the structural strength of the control arm bracket.

[0003] Regarding the aforementioned technologies, the inventors believe that the method of increasing structural strength by welding U-shaped gaskets to the swing arm bracket is rather cumbersome. Utility Model Content

[0004] To improve the structural strength of the swing arm bracket, this application provides a swing arm bracket for a subframe.

[0005] The subframe swing arm bracket provided in this application adopts the following technical solution:

[0006] A swing arm bracket for a subframe includes a bracket body, the bracket body comprising two opposing support plates and a connecting plate connected to the top surfaces of the two support plates; the support plates have a welded arc surface that fits against the subframe and both support plates are welded and fixed to the subframe, the support plates also have mounting holes penetrating both sides of the support plates, and the support plates have vertically arranged support protrusions on both sides of the mounting holes that protrude away from the support plates, the support protrusions and the bracket body are integrally formed.

[0007] By adopting the above technical solution, during the installation of the swing arm bracket, the swing arm bracket and the subframe are stably connected by the welded arc surface on the support plate. The swing arm is then installed onto the swing arm bracket through the mounting holes on the support plate. The support plate has support protrusions on both sides of the mounting holes, and the support protrusions are integrally formed with the bracket body, which helps to improve the structural strength of the support plate of the swing arm bracket. Moreover, compared with the traditional method of welding U-shaped gaskets on the support plate, the production process is simpler.

[0008] Optionally, the support protrusion has a first support surface perpendicular to the end face of the support plate and a second support surface inclinedly arranged on the end face of the support plate, and the connection between the first support surface and the second support surface has a rounded corner.

[0009] By adopting the above technical solution, the connection between the first support surface and the second support surface of the support protrusion has an arc angle, which helps to reduce the probability of damage to the support protrusion when subjected to external force and improve the service life of the swing arm bracket.

[0010] Optionally, the length of the support protrusion is 50% to 60% of the length of the support plate.

[0011] By adopting the above technical solution, setting the length of the support protrusion to 50% to 60% of the length of the support plate gives the support protrusion ideal strength and rigidity, reduces the probability of damage to the support protrusion when subjected to external forces, and improves the service life of the swing arm bracket.

[0012] Optionally, the width of the support protrusion is 30% to 40% of the length of the support protrusion.

[0013] By adopting the above technical solution, setting the width of the support protrusion to 30% to 40% of its length helps to enhance the load-bearing capacity of the support protrusion, ensuring that the support protrusion has sufficient width to withstand the load from the swing arm, reducing the probability of damage to the support protrusion, and improving the service life of the swing arm bracket.

[0014] Optionally, the connecting plate includes a first connecting portion connected to the top surface of the support plate and a second connecting portion connected to the first connecting portion and extending downward in a direction away from the support plate. The second connecting portion has deformation grooves at both ends on the side near the first connecting portion and has a welding surface that fits into the subframe.

[0015] By adopting the above technical solution, the specific structure of the connecting plate is disclosed. The connecting plate improves the connection between the first connecting part and the support plate. Furthermore, the second connecting part, along with its welding surface that mates with the subframe, allows for improved welding and fixation of the second connecting part to the subframe, further enhancing the stability of the connection between the swing arm bracket and the subframe. The deformation groove on the side of the second connecting part closer to the first connecting part facilitates subsequent stamping and other operations of the swing arm bracket.

[0016] Optionally, an arc-shaped through groove is provided on the side of the first connecting portion away from the second connecting portion.

[0017] By adopting the above technical solution, opening an arc-shaped groove on the side of the first connecting part away from the second connecting part helps to reduce the probability of the first connecting part interfering with the movement of the swing arm mounted on the swing arm bracket, and can reduce the overall weight of the swing arm bracket on the subframe, thus achieving the effect of lightweighting.

[0018] Optionally, the mounting hole is a strip-shaped hole.

[0019] By adopting the above technical solution, the design of the mounting hole as a strip hole allows the swing arm to be adjusted to a certain extent during installation, making the swing arm bracket more flexible and reliable during installation.

[0020] Optionally, the support body is provided with an inner support rod between the oppositely arranged support protrusions, the support protrusions having an arrangement cavity, and the two ends of the inner support rod are rotatably mounted with abutment joints adapted to the arrangement cavity of the support protrusion.

[0021] By adopting the above technical solution, an inner strut is set between the relatively arranged support protrusions, and the two ends of the inner strut have abutment joints that are adapted to the arrangement cavity of the support protrusion. This allows the inner strut to provide a stable support force for the support protrusion, reducing the probability of damage to the support protrusion, and also helps to reduce the probability of the support plate being squeezed and bent inward during the use of the swing arm bracket, thereby improving the torsional and bending resistance of the swing arm bracket.

[0022] Optionally, the inner support rod includes a first straight rod portion and a second straight rod portion sleeved on the first straight rod portion. The second straight rod portion has a sliding groove for sliding the first straight rod portion. The first straight rod portion is circumferentially arranged with a snap-fit ​​block. The second straight rod portion is provided with a first snap-fit ​​groove at the sliding groove for axial sliding of the snap-fit ​​block and a second snap-fit ​​groove connected to one side of the first snap-fit ​​groove and circumferentially arranged.

[0023] By adopting the above technical solution, the inner support rod includes a first straight rod portion and a second straight rod portion. The engagement between the locking block on the first straight rod portion and the first locking groove and the second locking groove on the second straight rod portion enables the quick locking and unlocking of the first straight rod portion and the second straight rod portion. This facilitates the installation of the inner support rod between the relatively arranged support protrusions. When the locking block is engaged in the second locking groove, the abutment joints at both ends of the inner support rod abut against the bottom of the support cavity of the support protrusion.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. A swing arm bracket for a subframe, wherein vertically arranged support protrusions integrally formed with the bracket body are provided on both sides of the mounting holes of the support plate, which helps to improve the structural strength of the support plate, and the production process is simpler than the traditional method of welding U-shaped gaskets on the support plate.

[0026] 2. The deformation groove on the second connecting part of the connecting plate helps the swing arm bracket to perform subsequent stamping operations, etc.

[0027] 3. By setting internal struts in the relatively arranged support protrusions, it helps to reduce the probability of damage to the support protrusions and can improve the bending resistance of the swing arm bracket, reducing the probability of the support plate of the swing arm bracket being squeezed and bent inward during use. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the swing arm bracket on the subframe in an embodiment of this application.

[0029] Figure 2 This is a schematic diagram of the rear side of the swing arm bracket on the subframe in an embodiment of this application.

[0030] Figure 3 This is a top view of the swing arm bracket on the subframe in an embodiment of this application.

[0031] Figure 4 This is a partial cross-sectional schematic diagram of the cooperation between the first straight rod portion and the second straight rod portion in an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Support plate; 11. Welded arc surface; 12. Mounting hole; 13. Support protrusion; 131. Arrangement cavity; 132. First support surface; 133. Second support surface; 2. Connecting plate; 21. First connecting part; 211. Arc-shaped through groove; 22. Second connecting part; 221. Deformation groove; 222. Welded surface; 3. Inner support rod; 31. Abutment joint; 32. First straight rod part; 321. Snap-fit ​​block; 33. Second straight rod part; 331. Sliding groove; 332. First snap-fit ​​groove; 333. Second snap-fit ​​groove. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a swing arm bracket for a subframe. (Refer to...) Figure 1 A swing arm bracket for a subframe includes a bracket body. The bracket body is generally U-shaped. The bracket body includes two opposing support plates 1 and a connecting plate 2 connected to one side of the top surface of the support plates 1.

[0035] Reference Figure 1 and Figure 2The support plate 1 also has a welded arc surface 11 that fits against the subframe, and both support plates 1 are fixed to the subframe by welding. The support plate 1 also has mounting holes 12 penetrating both sides of the support plate 1, and the mounting holes 12 are strip-shaped holes, which facilitates the adjustment of the swing arm mounted on the bracket body. On both sides of the mounting holes 12, the support plate 1 has vertically arranged support protrusions 13 that protrude away from the support plate 1, and the support protrusions 13 on the support plate 1 are symmetrically arranged on both sides of the mounting holes 12. The support protrusions 13 and the bracket body are integrally formed. In this embodiment, the support protrusions 13 are formed by stamping the support plate 1.

[0036] Reference Figure 1 The supporting protrusion 13 has a cavity 131. It also has a first supporting surface 132 perpendicularly arranged on the end face of the supporting plate 1 and a second supporting surface 133 inclined on the end face of the supporting plate 1. The connection between the first supporting surface 132 and the second supporting surface 133 has a rounded corner, which helps reduce the probability of damage to the supporting protrusion 13 when subjected to pressure. The length of the supporting protrusion 13 is 50% to 60% of the length of the supporting plate 1, and the width of the supporting protrusion 13 is 30% to 40% of its length. In this embodiment, the length of the supporting protrusion 13 is 60% of the length of the supporting plate 1, and the width of the supporting protrusion 13 is 30% of its length.

[0037] Reference Figure 2 and Figure 3 A connecting plate 2 is arranged on the top surface of the support plate 1, away from the support protrusion 13. The connecting plate 2 includes a first connecting portion 21 connected to the top surface of the support plate 1 and a second connecting portion 22 connected to the first connecting portion 21 and extending downward away from the support plate 1. The first connecting portion 21 has an arc-shaped through groove 211 on the side away from the second connecting portion 22, which facilitates the cooperation between the first connecting portion 21 and the swing arm mounted on the bracket body, and also helps to reduce the weight of the bracket body, achieving a lightweight effect. The second connecting portion 22 has deformation grooves 221 at both ends on the side near the first connecting portion 21, which facilitates subsequent stamping operations on the bracket body. The side of the second connecting portion 22 away from the first connecting portion 21 also has a welding surface 222 that fits against the surface of the subframe. Through the cooperation between the welding surface 222 and the welding arc surface 11, a stable connection can be achieved between the bracket body and the subframe.

[0038] Reference Figure 1 and Figure 4To reduce the probability of the two support plates 1 bending inward under external pressure, an inner support rod 3 is provided between the two opposing support protrusions 13 in the main body of the bracket. The inner support rod 3 has rotatably mounted abutment joints 31 at both ends that are adapted to the arrangement cavity 131 of the support protrusion 13, which helps to reduce the accumulation of impurities and debris in the arrangement cavity 131 of the support protrusion 13. The inner support rod 3 includes a first straight rod portion 32 and a second straight rod portion 33 sleeved on the outer wall of the first straight rod portion 32. The outer diameter of the first straight rod portion 32 is smaller than the outer diameter of the second straight rod portion 33, and the second straight rod portion 33 has a sliding groove 331 for sliding of the first straight rod portion 32. To facilitate the installation and disassembly of the inner support rod 3, the first straight rod portion 32 is circumferentially provided with a locking block 321, and the second straight rod portion 33 is provided with a first locking groove 332 for axial sliding of the locking block 321 at the sliding groove 331, and a second locking groove 333 connected to the first locking groove 332 and circumferentially arranged near the first straight rod portion 32. When the locking block 321 is placed in the second locking groove 333, the first straight rod portion 32 and the second straight rod portion 33 are locked, and at this time, the abutment joints 31 on both sides of the inner support rod 3 abut against the arrangement cavity 131 of the support protrusion 13. In this embodiment, the inner support rod 3 is arranged in the support protrusion 13 on the side of the support plate 1 away from the connecting plate 2.

[0039] The implementation principle of the swing arm bracket of the subframe in this application embodiment is as follows: During the installation of the swing arm bracket, the swing arm bracket is connected and fixed to the subframe through the welding arc surface 11 on the support plate 1 and the welding surface 222 of the second connecting part 22 on the connecting plate 2, and is connected and fixed to the swing arm through the setting of the mounting hole 12 on the support plate 1. The support plate 1 has vertically arranged support protrusions 13 on both sides of the mounting hole 12, which are integrally formed with the bracket body, which helps the structural strength of the support plate 1. Compared with the traditional method of welding U-shaped gaskets on the support plate 1, the production process is simpler and the welding step is eliminated.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A swing arm bracket for a subframe, comprising a bracket body, characterized in that, The main body of the bracket includes two opposing support plates (1) and a connecting plate (2) connected to the top surface of the two support plates (1); the support plate (1) has a welding arc surface (11) that fits with the subframe and both support plates (1) are welded and fixed to the subframe. The support plate (1) also has mounting holes (12) that penetrate through both sides of the support plate (1) and the support plate (1) has vertically arranged support protrusions (13) that protrude away from the support plate (1) on both sides of the mounting holes (12). The support protrusions (13) and the main body of the bracket are integrally formed.

2. The swing arm bracket of a subframe according to claim 1, characterized in that, The support protrusion (13) has a first support surface (132) perpendicular to the end face of the support plate (1) and a second support surface (133) inclined to the end face of the support plate (1), and the connection between the first support surface (132) and the second support surface (133) has a rounded corner.

3. The swing arm bracket of a subframe according to claim 2, characterized in that, The length of the support protrusion (13) is 50% to 60% of the length of the support plate (1).

4. The swing arm bracket of a subframe according to claim 3, characterized in that, The width of the support protrusion (13) is 30% to 40% of the length of the support protrusion (13).

5. The swing arm bracket of a subframe according to claim 1, characterized in that, The connecting plate (2) includes a first connecting portion (21) connected to the top surface of the support plate (1) and a second connecting portion (22) connected to the first connecting portion (21) and extending downward in a direction away from the support plate (1). The second connecting portion (22) has deformation grooves (221) at both ends on the side near the first connecting portion (21) and the second connecting portion (22) has a welding surface (222) that fits into the subframe.

6. The swing arm bracket of a subframe according to claim 5, characterized in that, An arc-shaped through groove (211) is provided on the side of the first connecting part (21) away from the second connecting part (22).

7. The swing arm bracket of a subframe according to claim 1, characterized in that, The mounting hole (12) is a strip-shaped hole.

8. The swing arm bracket of a subframe according to claim 1, characterized in that, The main body of the bracket is provided with an inner support rod (3) between the supporting protrusions (13) arranged opposite to each other. The supporting protrusions (13) have a cavity (131). The two ends of the inner support rod (3) are rotatably mounted with abutment joints (31) that are adapted to the cavity (131) of the supporting protrusions (13).

9. The swing arm bracket of a subframe according to claim 8, characterized in that, The inner support rod (3) includes a first straight rod portion (32) and a second straight rod portion (33) sleeved on the first straight rod portion (32). The second straight rod portion (33) has a sliding groove (331) for sliding of the first straight rod portion (32). The first straight rod portion (32) is circumferentially arranged with a snap-fit ​​block (321). The second straight rod portion (33) is provided with a first snap-fit ​​groove (332) for axial sliding of the snap-fit ​​block (321) and a second snap-fit ​​groove (333) connected to one side of the first snap-fit ​​groove (332) and circumferentially arranged.

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