Mounting bracket for control arm, auxiliary frame structure and vehicle

Abstract

The utility model discloses a mounting support for a control arm, an auxiliary frame structure and a vehicle, the mounting support comprises a first connecting plate and a second connecting plate which are oppositely arranged, the first connecting plate and the second connecting plate are arranged on an auxiliary frame, the first connecting plate is provided with a bending area, and the second connecting plate is provided with a clamping area. A protruding part is arranged on the edge, close to the bending area and connected with the auxiliary frame, of the first connecting plate. The bending area is arranged on the first connecting plate, the protruding part is arranged on the edge, close to the bending area and connected with the auxiliary frame, of the first connecting plate, the problem of stress concentration is solved through the design of the protruding part, the rigidity of the bending area is improved, and the failure risk caused by reduction of the fatigue life of the welding position is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle frames, and in particular to a mounting bracket for a control arm, a sub-frame structure and a vehicle. Background Art

[0002] During driving, the vehicle will be stimulated by the road surface. The control arm is connected to the subframe through a mounting bracket. The control arm mounting bracket will have a certain bending design to avoid the control arm and ensure the life of the weld. After the bent part is welded to the subframe, there will be stress concentration. Its stiffness and durability are difficult to meet the requirements, and there is a risk of failure. Utility Model Content

[0003] In view of this, the utility model aims to provide a mounting bracket for a control arm, a subframe structure and a vehicle, so as to solve the technical problem that the mounting bracket for a control arm in the prior art has poor rigidity and durability.

[0004] The utility model provides a mounting bracket for a control arm, comprising a first connecting plate and a second connecting plate arranged opposite to each other, wherein the first connecting plate and the second connecting plate are arranged on a sub-frame, a bending area is arranged on the first connecting plate, and a protrusion is arranged at an edge of the first connecting plate close to the bending area and connected to the sub-frame.

[0005] Furthermore, the protruding direction of the protruding portion is toward the inner side of the bend of the bend area.

[0006] Furthermore, the bending area on the first connecting plate is bent in a direction away from the second connecting plate.

[0007] Furthermore, the protrusion is spherical.

[0008] Furthermore, the first connecting plate is provided with a first through hole, the second connecting plate is provided with a second through hole, the first through hole and the second through hole are arranged opposite to each other, and a rotating shaft is passed between the first through hole and the second through hole to connect the control arm.

[0009] Further, the first connecting plate is provided with a first boss, and the first through hole is provided on the first boss; and / or the second connecting plate is provided with a second boss, and the second through hole is provided on the second boss.

[0010] Furthermore, it also includes a reinforcing plate arranged on the sub-frame, two sides of the reinforcing plate are respectively connected to the first connecting plate and the second connecting plate, and the reinforcing plate is provided with an avoidance groove.

[0011] The utility model also provides a sub-frame structure, comprising a sub-frame, on which the mounting bracket for the control arm is arranged.

[0012] Furthermore, the subframe includes a crossbeam and a longitudinal beam, the crossbeam is connected with the longitudinal beam to form a frame structure, and the first connecting plate and the second connecting plate are welded to the longitudinal beam.

[0013] The utility model also provides a vehicle, comprising the auxiliary frame structure.

[0014] The utility model discloses a mounting bracket for a control arm, wherein the first connecting plate and the second connecting plate are arranged on the sub-frame to be connected with the control arm so as to realize the assembly of the sub-frame and the control arm; the first connecting plate is provided with a bending area, and a protrusion is provided at the edge of the first connecting plate close to the bending area and connected with the sub-frame, which, on the one hand, meets the requirements of designing the bending area and can avoid interfering with the movement range of the control arm and ensure the life of the weld curve; on the other hand, the design of the protrusion can avoid the problem of stress concentration in the bending area, improve the stiffness of the bending area, avoid the failure risk caused by the reduction of fatigue life of the welding position, and thus can improve the overall bearing capacity of the sub-frame.

[0015] The subframe structure and the vehicle of the present invention have all the beneficial effects of the above-mentioned mounting bracket, which will not be described in detail here.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the disclosed embodiments. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method. The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of the auxiliary frame structure provided by the utility model;

[0019] Figure 2 yes Figure 1 The enlarged schematic diagram of point Ⅰ in the middle;

[0020] Figure 3 It is a structural schematic diagram of the first connecting plate provided by the utility model.

[0021] The above drawings include the following reference numerals:

[0022] 100. Subframe; 101. Crossbeam; 102. Longitudinal beam; 1. First connecting plate; 11. First through hole; 12. First flange; 2. Second connecting plate; 21. Second through hole; 22. Second boss; 3. Bending area; 31. Raised portion; 4. Reinforcement plate; 41. Avoidance groove. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0024] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the utility model will occur to those skilled in the art.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] This specification may use the phrases "in one embodiment", "in another embodiment", "in yet another embodiment" or "in other embodiments", all of which may refer to one or more of the same or different embodiments according to the present invention.

[0027] The utility model provides a mounting bracket for a control arm, comprising a first connecting plate 1 and a second connecting plate 2 arranged opposite to each other, wherein the first connecting plate 1 and the second connecting plate 2 are arranged on a sub-frame 100, a bending area 3 is provided on the first connecting plate 1, and a protrusion 31 is provided at an edge of the first connecting plate 1 close to the bending area 3 and connected to the sub-frame 100.

[0028] Specifically, combined Figures 1 to 3 As shown, the first connecting plate 1 and the second connecting plate 2 are plate-shaped structures, and are both welded to the sub-frame 100 through their respective sides. The first connecting plate 1 and the second connecting plate 2 can be arranged perpendicular to the sub-frame 100 so as to rotatably connect the control arm between the first connecting plate 1 and the second connecting plate 2.

[0029] Furthermore, in order to facilitate the connection of the control arm, a first through hole 11 is provided on the first connecting plate 1, and a second through hole 21 is provided on the second connecting plate 2. The first through hole 11 and the second through hole 21 are arranged opposite to each other, and a rotating shaft is passed between the first through hole 11 and the second through hole 21 to connect the control arm.

[0030] Specifically, combined Figure 2 As shown, the first through hole 11 on the first connecting plate 1 and the second through hole 21 on the second connecting plate 2 are arranged corresponding to each other, so that the control arm can be rotatably set between the first connecting plate 1 and the second connecting plate 2 through the rotating shaft, thereby ensuring smooth movement of the control arm.

[0031] Further, the first connecting plate 1 is provided with a first boss (not shown), and the first through hole 11 is arranged on the first boss; and / or the second connecting plate 2 is provided with a second boss 22, and the second through hole 21 is arranged on the second boss 22.

[0032] Specifically, combined Figure 2 As shown, the second boss 22 is provided at a position corresponding to the second through hole 21 on the second connecting plate 2 (the second boss 22 and the second through hole 21 are usually arranged concentrically), and the protruding height of the second boss 22 can be designed as required. Optionally, a first boss can also be provided on the first connecting plate 1 corresponding to the first through hole 11, and its structure is similar to that of the second boss 22, which is not shown in the figure.

[0033] In this way, through the design of the first boss and the second boss, it is convenient to control the gap between the first connecting plate 1, the second connecting plate 2 and the control arm, thereby ensuring the smooth movement of the control arm, and at the same time improving the connection strength between the rotating shaft and the first through hole 11 and the second through hole 21.

[0034] Furthermore, the mounting bracket further comprises a reinforcing plate 4 arranged on the sub-frame 100 , two sides of the reinforcing plate 4 are respectively connected to the first connecting plate 1 and the second connecting plate 2 , and an avoidance groove 41 is provided on the reinforcing plate 4 .

[0035] Combination Figure 2As shown, the plate surface of the reinforcing plate 4 here is arranged perpendicularly to the plate surface of the first connecting plate 1 and the plate surface of the second connecting plate 2 (in order to ensure the relative arrangement of the first through hole 11 and the second through hole 21, the plate surface of the first connecting plate 1 and the plate surface of the second connecting plate 2 are usually parallel to each other), so that the reinforcing plate 4 can play a better supporting and reinforcing role for the first connecting plate 1 and the second connecting plate 2.

[0036] An avoidance groove 41 is provided in the middle portion of the reinforcing plate 4, and the two side portions of the reinforcing plate 4 are respectively connected to the side edges of the first connecting plate 1 and the side edges of the second connecting plate 2, and the bottom edge of the reinforcing plate 4 is welded to the sub-frame 100, thereby supporting and reinforcing the first connecting plate 1 and the second connecting plate 2. The size and position of the avoidance groove 41 here should be determined according to the specific motion range of the control arm. When the control arm swings to the position of the reinforcing plate 4, the avoidance groove 41 can allow the controllable arm to pass through to avoid motion interference with the control arm.

[0037] Further, the first connecting plate 1 is provided with a first flange 12 on a side away from the sub-frame 100 , and / or the second connecting plate 2 is provided with a second flange on a side away from the sub-frame 100 .

[0038] Specifically, combined Figure 3 As shown, the side of the first connecting plate 1 facing away from the subframe 100 (i.e., the side facing away from the protrusion 31) is provided with a first outward flange 12. Optionally, a second flange can also be similarly designed on the second connecting plate 2 (not shown in the figure).

[0039] Thus, compared with the simple first connecting plate 1 and / or the second connecting plate 2 , the first flange 12 and the second flange can increase the rigidity of the first connecting plate 1 and / or the second connecting plate 2 to a certain extent.

[0040] Furthermore, combined with Figure 2 As shown, the bending area 3 refers to a part of the area set on the first connecting plate 1, and the bending area 3 is formed by a bending process. According to the stress analysis of the first connecting plate 1, the bending area 3 usually causes a more obvious stress concentration problem, thereby affecting the strength at the corresponding position.

[0041] A protrusion 31 is provided at the edge of the first connecting plate 1 near the bending area 3 and connected to the sub-frame 100. Considering that when the side of the first connecting plate 1 is welded to the sub-frame 100, the weld curve is Figure 3The side shape of the first connecting plate 1 is the same, that is, a bent curve. By forming a protrusion 31 protruding in the bending direction on the edge corresponding to the bending area 3, the weld curve can also form a curve protruding in the bending direction corresponding to the bending area 3, thereby improving the strength of the bending position.

[0042] Furthermore, the bending area 3 on the first connecting plate 1 is bent in a direction away from the second connecting plate 2 .

[0043] Combination Figure 2 As shown, a bending area 3 is provided on the first connecting plate 1, and the bending area 3 of the first connecting plate 1 is bent in a direction away from the second connecting plate 2, thereby preventing the setting of the bending area 3 from affecting the swing of the control arm.

[0044] Furthermore, the protrusion direction of the protrusion 31 is toward the inner side of the bend of the bend area 3. Figure 3 As shown, the first connecting plate 1 is provided with the bending area 3, and its bending design forms an arc structure at the bending area 3. The protrusion direction of the protrusion 31 arranged at the edge of the first connecting plate 1 is toward the inner side of the arc structure, i.e., the inner side of the bend.

[0045] In this way, the protrusion 31 can provide certain support for the first connecting plate 1 to prevent the first connecting plate 1 from being biased toward the inner side of the bend, thereby improving the rigidity of the bending area 3 and improving the overall bearing capacity of the subframe 100.

[0046] It should be noted that the specific shape of the protrusion 31 can be designed as required, for example Figure 3 The raised portion 31 shown in the figure is spherical, or the raised portion 31 is similar to a triangular pyramid structure (usually a rounded transition needs to be designed to avoid stress concentration on edges or corners), as long as the overall structure has a convex tendency and the side convex direction is toward the inside of the bend.

[0047] In this embodiment, combined Figure 3 As shown, the raised portion 31 is spherical. It can be seen from the figure that the raised portion 31 is similar to a quarter of a complete sphere. The design of the raised portion 31 makes the side of the bending area 3, that is, a part of the side of the first connecting plate 1, protrude toward the inner side of the bend.

[0048] In this way, the spherical protrusion 31 is conducive to being obtained by stamping, and compared with other shapes, the spherical shell shape has no sharp corners, which can better eliminate stress concentration and improve the rigidity of the dangerous bending area 3.

[0049] The mounting bracket for the control arm of the utility model realizes the assembly of the subframe 100 and the control arm by arranging the first connecting plate 1 and the second connecting plate 2 on the subframe 100 to connect with the control arm; the bending area 3 is provided on the first connecting plate 1, and the protrusion 31 is provided at the edge of the first connecting plate 1 close to the bending area 3 and connected to the subframe 100. On the one hand, this meets the requirements of designing the bending area 3, can avoid interfering with the movement range of the control arm, and ensure the service life of the welding; on the other hand, the design of the protrusion 31 can also avoid the problem of stress concentration in the bending area 3, improve the strength of the bending area 3, avoid the failure risk caused by the reduction of fatigue life of the welding position, and thus improve the overall bearing capacity of the subframe 100.

[0050] The utility model also provides a sub-frame structure, including a sub-frame 100, on which the mounting bracket for the control arm is arranged.

[0051] Combination Figure 1 and Figure 2 As shown, the above-mentioned mounting brackets are symmetrically arranged on both sides of the subframe 100, and the control arm and the subframe 100 are assembled by cooperating with other control arm mounting structures. The specific setting positions and quantities of the mounting brackets can be adaptively changed according to design requirements, and are not limited here.

[0052] The sub-frame structure of the present invention adopts the above-mentioned mounting bracket, wherein the first connecting plate 1 and the second connecting plate 2 are arranged on the sub-frame 100 to be connected with the control arm, so as to realize the assembly of the sub-frame 100 and the control arm; the first connecting plate 1 is provided with a bending area 3, and a protrusion 31 is provided at the edge of the first connecting plate 1 close to the bending area 3 and connected with the sub-frame 100. This can meet the requirements of designing the bending area 3 on the one hand, avoid interfering with the movement range of the control arm, and ensure the service life of the welding, and on the other hand, the design of the protrusion 31 can also avoid the problem of stress concentration in the bending area 3, improve the strength of the bending area 3, avoid the failure risk caused by the reduction of fatigue life of the welding position, and thus improve the overall bearing capacity of the sub-frame 100.

[0053] Furthermore, the subframe 100 includes a crossbeam 101 and a longitudinal beam 102 , the crossbeam 101 and the longitudinal beam 102 are connected to form a frame structure, and the first connecting plate 1 and the second connecting plate 2 are welded to the longitudinal beam 102 .

[0054] Combination Figure 1As shown, the cross beam 101 and the longitudinal beam 102 are connected to each other to form a frame structure, and the side edges of the first connecting plate 1 and the second connecting plate 2 are welded to the longitudinal beam 102 , thereby being connected to the control arm through the first through hole 11 and the second through hole 21 .

[0055] The utility model also provides a vehicle, comprising the auxiliary frame structure.

[0056] The vehicle of the present invention adopts the above-mentioned subframe structure, wherein the first connecting plate 1 and the second connecting plate 2 are arranged on the subframe 100 to be connected with the control arm to realize the assembly of the subframe 100 and the control arm; the first connecting plate 1 is provided with a bending area 3, and a protrusion 31 is provided at the edge of the first connecting plate 1 close to the bending area 3 and connected with the subframe 100. On the one hand, it meets the requirements of designing the bending area 3, can avoid interfering with the movement range of the control arm, and ensure the life of the weld curve; on the other hand, the design of the protrusion 31 can also avoid the problem of stress concentration in the bending area 3, improve the stiffness of the bending area 3, avoid the failure risk caused by the reduction of fatigue life of the welding position, and thus can improve the overall bearing capacity of the subframe 100.

[0057] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0059] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0060] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0061] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mounting bracket for a control arm, characterized in that: The invention comprises a first connecting plate (1) and a second connecting plate (2) which are arranged opposite to each other, wherein the first connecting plate (1) and the second connecting plate (2) are arranged on a sub-frame (100), a bending area (3) is provided on the first connecting plate (1), and a protrusion (31) is provided at an edge of the first connecting plate (1) which is close to the bending area (3) and connected to the sub-frame (100).

2. The mounting bracket for a control arm according to claim 1, characterized in that: The protruding direction of the protruding portion (31) is toward the inner side of the bend of the bend area (3).

3. The mounting bracket for a control arm according to claim 2, characterized in that: The bending area (3) on the first connecting plate (1) is bent in a direction away from the second connecting plate (2).

4. The mounting bracket for a control arm according to claim 1, characterized in that: The protrusion (31) is spherical.

5. The mounting bracket for a control arm according to claim 1, characterized in that: The first connecting plate (1) is provided with a first through hole (11), the second connecting plate (2) is provided with a second through hole (21), the first through hole (11) and the second through hole (21) are arranged opposite to each other, and a rotating shaft is passed between the first through hole (11) and the second through hole (21) to connect the control arm.

6. The mounting bracket for a control arm according to claim 5, characterized in that: The first connecting plate (1) is provided with a first boss, the first through hole (11) is arranged on the first boss, and / or the second connecting plate (2) is provided with a second boss (22), the second through hole (21) is arranged on the second boss (22).

7. The mounting bracket for a control arm according to claim 1, characterized in that: It also comprises a reinforcing plate (4) arranged on the sub-frame (100), the two sides of the reinforcing plate (4) being respectively connected to the first connecting plate (1) and the second connecting plate (2), and an avoidance groove (41) being provided on the reinforcing plate (4).

8. A subframe structure, characterized in that: The vehicle comprises a subframe (100), on which a mounting bracket for a control arm according to any one of claims 1 to 7 is arranged.

9. The subframe structure according to claim 8, characterized in that: The subframe (100) comprises a crossbeam (101) and a longitudinal beam (102); the crossbeam (101) and the longitudinal beam (102) are connected to form a frame structure; the first connecting plate (1) and the second connecting plate (2) are welded to the longitudinal beam (102).

10. A vehicle, characterized in that: Includes the subframe structure as described in claim 8 or 9.

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