Suspension control arm of vehicle, suspension system and vehicle

Abstract

The utility model relates to a suspension control arm of a vehicle, a suspension system and the vehicle, the suspension control arm comprises a control arm body and a fastening ring, the control arm body is provided with a first connecting end connected with a steering knuckle of the vehicle and a second connecting end connected with an auxiliary frame of the vehicle, and the first connecting end is provided with a connecting hole; the fastening ring is correspondingly arranged on one side of the first connecting end of the control arm body in the axial direction of the connecting hole, and the fastening ring is fixedly connected with the first connecting end of the control arm body and used for being connected with a fastener penetrating through the steering knuckle and the connecting hole in a matched mode. According to the suspension control arm of the vehicle, the suspension system and the vehicle, compared with the mode that bolts and nuts are screwed oppositely on the two sides, the space requirement of connection of the control arm body and the steering knuckle for the suspension system can be reduced, and the problem that installation of the control arm body in the space of the suspension system is limited is solved.

Description

Technical Field

[0001] This application belongs to the technical field of automotive suspension equipment, and particularly relates to a suspension control arm of a vehicle, a suspension system and a vehicle thereof. Background Art

[0002] An automotive suspension system generally includes a subframe, a steering knuckle and a suspension control arm. The suspension control arm is used to connect the subframe and the steering knuckle. Among them, the suspension control arm and the steering knuckle are usually connected by screwing a bolt and a nut together.

[0003] However, to ensure an effective connection between the suspension control arm and the steering knuckle, the thread length of the suspension control arm is usually lengthened, resulting in an increase in the wall thickness of the suspension control arm and taking up more space, which affects the connection between the suspension control arm and the steering knuckle. Summary of the Utility Model

[0004] The purpose of this application is to provide a suspension control arm of a vehicle, a suspension system and a vehicle thereof. Compared with the way of screwing on both sides of the bolt and the nut, it can reduce the space requirement of the connection between the control arm body and the steering knuckle for the suspension system, so as to solve the problem that the installation of the control arm body is restricted in the space of the suspension system.

[0005] The first aspect of this application discloses a suspension control arm of a vehicle, including: a control arm body and a fastening ring. The control arm body has a first connection end connected to the steering knuckle of the vehicle and a second connection end connected to the subframe of the vehicle. A connection hole is provided at the first connection end; the fastening ring is correspondingly arranged on one side of the first connection end of the control arm body along the axial direction of the connection hole, and the fastening ring is fixedly connected to the first connection end of the control arm body and is used for cooperating with a fastener passing through the steering knuckle and the connection hole for connection.

[0006] In an exemplary embodiment of this application, the fastening ring includes an inner embedded section and an outer ring section connected to each other. The inner embedded section and the outer ring section are oppositely arranged along the axial direction of the connection hole. The inner embedded section is arranged in the connection hole, and the outer ring section is arranged outside the connection hole. Both the inner embedded section and the outer ring section are used for cooperating with a fastener passing through the steering knuckle and the connection hole for connection.

[0007] In an exemplary embodiment of this application, the diameter of the outer ring section is larger than the diameter of the inner embedded section.

[0008] In an exemplary embodiment of this application, the outer peripheral side of the inner embedded section is provided with locking teeth, and the hole wall of the connection hole is provided with a slot. The inner embedded section is arranged in the connection hole, and the locking teeth are connected in the slot.

[0009] In an exemplary embodiment of the present application, the depth of the embedded section is less than the depth of the connection hole.

[0010] In an exemplary embodiment of the present application, the connection hole includes a first hole section and a second hole section arranged along the axial direction of the connection hole. The diameter of the first hole section is larger than the diameter of the second hole section. The embedded section is provided in the first hole section and is spaced apart from the second hole section.

[0011] In an exemplary embodiment of the present application, a threaded structure is provided in the fastening ring, and the threaded structure is used for mating connection with a fastener passing through the steering knuckle and the connection hole; and / or, the control arm body is an aluminum structure.

[0012] In an exemplary embodiment of the present application, the first connection end includes a first connection section, an intermediate connection section, and a second connection section. The first connection section and the second connection section are spaced apart. The first connection section and the second connection section are respectively connected to two opposite sides of the intermediate connection section. The connection hole is located in the first connection section or the second connection section.

[0013] The second aspect of the present application discloses a suspension system, including a steering knuckle, a subframe, and the suspension control arm described above. The first connection end is connected to the steering knuckle, and the second connection end is connected to the subframe.

[0014] The third aspect of the present application discloses a vehicle, including a main frame and the suspension system described above. The main frame is connected to the suspension system.

[0015] The solution of the present application has the following beneficial effects:

[0016] In the embodiment of the present application, the fastening ring is axially arranged corresponding to one side (for example, the left side) of the first connection end of the control arm body along the connection hole and is fixedly connected to the first connection end, so that the fastener only needs to pass through the steering knuckle and the connection hole of the first connection end from the other side (for example, the right side) of the first connection end to be mated with the fastening ring to realize the connection between the control arm body and the steering knuckle. Compared with the way of screwing bolts and nuts on both sides, the connection between the control arm body and the steering knuckle is realized by connecting the fastener with the fastening ring from one side, which can reduce the space requirement of the connection between the control arm body and the steering knuckle for the suspension system to solve the problem that the installation of the control arm body is limited in the space of the suspension system.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Description of the Drawings

[0018] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them, the accompanying drawings here are used to represent the inventive concept of the present application and are not completely equivalent to the structure of the actual product protected by the present application.

[0019] Figure 1 A three-dimensional structural schematic diagram of the suspension system in an embodiment of the present application is shown.

[0020] Figure 2 A three-dimensional structural schematic diagram of the suspension control arm in an embodiment of the present application is shown.

[0021] Figure 3 An embodiment of the present application is shown Figure 2 A cross-sectional structural schematic diagram of the suspension control arm at A-A in the embodiment is shown.

[0022] Figure 4 A front view structural schematic diagram of the fastening ring in an embodiment of the present application is shown.

[0023] Explanation of reference numerals:

[0024] 1. Suspension control arm; 101. Connecting hole; 101a. First hole section; 101b. Second hole section; 102. Through hole; 11. Control arm body; 111. First connection end; 111a. First connection section; 111b. Intermediate connection section; 111c. Second connection section; 112. Second connection end; 12. Fastening ring; 121. Embedded section; 122. Outer ring section; 13. Bushing; 2. Fastener; 3. Steering knuckle; 4. Subframe; a. Tooth. Detailed implementation manners

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0026] In addition, the described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0027] The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0028] As Figures 1 to 4 shown, this embodiment provides a suspension control arm 1 for a vehicle, including: a control arm body 11 and a fastening ring 12. The control arm body 11 has a first connection end 111 connected to a steering knuckle 3 of the vehicle, and a second connection end 112 connected to a subframe 4 of the vehicle. A connection hole 101 is provided at the first connection end 111.

[0029] In this embodiment, the suspension control arm 1 further includes a bushing 13. The bushing 13 is connected to the second connection end 112 in an interference fit by press-fitting, and the second connection end 112 is connected to the subframe 4 through the bushing 13. The control arm body 11 is connected to the subframe 4 through the bushing 13, which can reduce the vibration transmitted from the control arm body 11 to the subframe 4 and is beneficial to improving the NVH performance of the whole vehicle.

[0030] It should be understood that since the steering knuckle 3 will vibrate due to road bumps during driving, and the vibration will be transmitted to the control arm body 11 through the steering knuckle 3, therefore, a bushing 13 for vibration damping needs to be provided between the control arm body 11 and the subframe 4.

[0031] Furthermore, the fastening ring 12 is correspondingly arranged along the axial direction of the connection hole 101 on one side of the first connection end 111 of the control arm body 11. The fastening ring 12 is fixedly connected to the first connection end 111 of the control arm body 11 and is used for cooperating with a fastener 2 passing through the steering knuckle 3 and the connection hole 101.

[0032] For example, the fastening ring 12 can be fixedly connected to the first connection end 111 by welding.

[0033] It should be understood that when connecting the control arm body 11 to the steering knuckle 3, first, the fastening ring 12 should be fixedly connected to the first connection end 111 of the control arm body 11. Then, the fastener 2 is passed through the steering knuckle 3 and the connection hole 101 and connected to the fastening ring 12.

[0034] In this embodiment, a threaded structure is provided inside the fastening ring 12, and the threaded structure is used to cooperate with the fastener 2 passed through the steering knuckle 3 and the connection hole 101. After the fastener 2 is passed through the steering knuckle 3 and the connection hole 101, it can be connected to the threaded structure of the fastening ring 12 to realize the connection between the steering knuckle 3 and the control arm body 11.

[0035] Of course, in other embodiments, the fastening ring 12 and the fastener 2 can also be connected by a method of snap connection followed by welding.

[0036] For example, the fastener 2 can be a bolt, a screw, etc.

[0037] In this embodiment, the fastening ring 12 is axially disposed corresponding to one side (e.g., the left side) of the first connection end 111 of the control arm body 11 along the connection hole 101 and fixedly connected to the first connection end 111, so that the fastener 2 only needs to pass through the steering knuckle 3 and the connection hole 101 of the first connection end 111 from the other side (e.g., the right side) of the first connection end 111 to cooperate with the fastening ring 12 for connection, so as to realize the connection between the control arm body 11 and the steering knuckle 3. Compared with the method of screwing on both sides of a bolt and a nut, connecting the control arm body 11 and the steering knuckle 3 by connecting the fastener 2 to the fastening ring 12 from one side can reduce the space requirement of the connection between the control arm body 11 and the steering knuckle 3 for the suspension system, so as to solve the problem that the installation of the control arm body 11 is limited in the space of the suspension system.

[0038] Combined Figure 1 and Figure 3 As shown, the fastening ring 12 includes an embedded section 121 and an outer ring section 122 connected to each other. The embedded section 121 and the outer ring section 122 are oppositely disposed axially along the connection hole 101. The embedded section 121 is disposed inside the connection hole 101, and the outer ring section 122 is disposed outside the connection hole 101. Both the embedded section 121 and the outer ring section 122 are used to cooperate with the fastener 2 passed through the steering knuckle 3 and the connection hole 101.

[0039] In this embodiment, both the embedded section 121 and the outer ring section 122 can be connected to the fastener 2 to ensure the stability of the connection between the control arm body 11 and the steering knuckle 3. At the same time, since the embedded section 121 is disposed inside the connection hole 101, it can reduce the occupation of the space of the suspension system by the fastening ring 12, which is convenient for the installation of the control arm body 11.

[0040] Combined Figure 3As shown, the fastening ring 12 is a "T-shaped" steel sleeve, that is, the diameter of the outer ring section 122 is larger than that of the embedded section 121.

[0041] In this embodiment, the diameter of the outer ring section 122 is larger than that of the embedded section 121. After the fastening ring 12 and the control arm body 11 are connected to the fastener 2, it is possible to avoid the problem of the installation surface being crushed due to the too small contact area between the outer ring section 122 and the first connection end 111, resulting in deformation of the control arm body 11.

[0042] It should be understood that the diameter of the outer ring section 122 should be the maximum outer diameter of the outer ring section 122, that is, the diameter of the end of the outer ring section 122 connected to the embedded section 121.

[0043] Combined with Figure 3 and Figure 4 As shown, the outer peripheral side of the embedded section 121 is provided with locking teeth a, and the hole wall of the connection hole 101 is provided with a card slot. The embedded section 121 is arranged in the connection hole 101, and the locking teeth a are connected in the card slot.

[0044] In this embodiment, the embedded section 121 is provided with a plurality of locking teeth a along the axial direction of the connection hole 101, and the hole wall of the connection hole 101 is provided with a plurality of card slots that cooperate with the locking teeth a. When the embedded section 121 is installed in the connection hole 101, the plurality of locking teeth a are in interference fit connection with the plurality of card slots one by one, avoiding the problem that the fastening ring 12 rotates with the rotation during the tightening of the fastener 2, generating false torque, and causing the fastener 2 to loosen and make abnormal noises, so as to ensure the stability of the connection between the control arm body 11 and the steering knuckle 3.

[0045] It should be understood that the diameters of the embedded section 121 and the locking teeth a should be slightly larger than the diameters of the connection hole 101 and the card slot. While ensuring that the embedded section 121 can be installed in the connection hole 101, it is also necessary to meet the requirement of interference fit connection between the locking teeth a and the slot wall of the card slot.

[0046] In this embodiment, combined with Figure 3 As shown, the depth of the embedded section 121 is less than the depth of the connection hole 101, avoiding errors in the size control of the embedded section 121, resulting in the fastening ring 12 and the control arm body 11 not being pressed in place, affecting the connection between the control arm body 11 and the steering knuckle 3.

[0047] Combined with Figure 3 As shown, the connection hole 101 includes a first hole section 101a and a second hole section 101b arranged along the axial direction of the connection hole 101. The diameter of the first hole section 101a is larger than that of the second hole section 101b. The embedded section 121 is arranged in the first hole section 101a and is spaced from the second hole section 101b.

[0048] In this embodiment, the fastening ring 12 is provided with a through hole 102. The fastener 2 passes through the second hole section 101b of the control arm body 11 and the through hole 102 of the fastening ring 12, and is cooperatively connected with the embedded section 121 and the outer ring section 122 to realize the connection between the control arm body 11 and the steering knuckle 3. The diameter of the first hole section 101a is larger than that of the second hole section 101b, so that the nut of the fastener 2 can abut against the control arm body 11, preventing the nut of the fastener 2 from abutting against the embedded section 121 and affecting the installation of the embedded section 121 in the first hole section 101a. At the same time, the screw of the fastener 2 can be connected to the hole wall of the second hole section 101b to ensure the stability of the connection between the screw of the fastener 2 and the control arm body 11.

[0049] It should be understood that the diameter of the through hole 102 should be approximately the same as that of the second hole section 101b, and the diameter of the second hole section 101b is slightly larger than that of the through hole 102, so as to facilitate the fastener 2 to pass through the second hole section 101b and the through hole 102 in sequence and be connected to the fastening ring 12. When the control arm body 11 is connected to the steering knuckle 3, the fastener 2 can be connected to the hole wall of the second hole section 101b and the hole wall of the through hole 102, thereby ensuring the stability of the connection between the control arm body 11 and the steering knuckle 3.

[0050] In this embodiment, the fastener 2 is made of conventional materials. The fastener 2 can replace the hexagon flange nut, solving the problem that it is difficult to install the control arm body 11 in the suspension system space, and the cost of the fastener 2 is equivalent to that of the nut, without cost increase.

[0051] In this embodiment, the control arm body 11 is made of aluminum. Since the weight of aluminum is lighter than that of steel, making the control arm body 11 of aluminum is beneficial to reducing the weight of the suspension control arm 1, and thus realizing the lightweight of the whole vehicle. Of course, in other embodiments, the control arm body 11 can also be made of steel, aluminum alloy, etc.

[0052] It should be understood that since the strength of aluminum is less than that of steel, the aluminum control arm body 11 needs to increase the length of the threaded structure compared with the steel control arm body 11 to ensure the connection strength between the control arm body 11 and the steering knuckle 3. A fastening ring 12 is added on one side of the first connection end 111 of the control arm body 11, so that the fastener 2 can be connected to both the fastening ring 12 and the control arm body 11 at the same time. The fastening ring 12 is used to increase the length of the threaded structure to ensure the connection strength between the control arm body 11 and the steering knuckle 3.

[0053] In this embodiment, in combination with 1 to Figure 3As shown, the first connection end 111 has a "U-shaped" structure. The first connection end 111 includes a first connection segment 111a, an intermediate connection segment 111b, and a second connection segment 111c. The first connection segment 111a and the second connection segment 111c are arranged at intervals. The first connection segment 111a and the second connection segment 111c are respectively connected to two opposite sides of the intermediate connection segment 111b. The connection hole 101 is located in the first connection segment 111a. When the first connection end 111 is connected to the steering knuckle 3, the steering knuckle 3 is connected between the first connection segment 111a and the second connection segment 111c. The fastener 2 sequentially passes through the second connection segment 111c, the steering knuckle 3, the second hole segment 101b, and the through hole 102, and is cooperatively connected with the fastening ring 12.

[0054] In other embodiments, the connection hole 101 can also be located in the second connection segment 111c. When the first connection end 111 is connected to the steering knuckle 3, the steering knuckle 3 is connected between the first connection segment 111a and the second connection segment 111c. The fastener 2 sequentially passes through the first connection segment 111a, the steering knuckle 3, the second hole segment 101b, and the through hole 102, and is cooperatively connected with the fastening ring 12.

[0055] Combined Figure 1 and Figure 2 As shown, this embodiment provides a suspension system, including a steering knuckle 3, a subframe 4, and the above-mentioned suspension control arm 1. The first connection end 111 is connected to the steering knuckle 3, and the second connection end 112 is connected to the subframe 4 through a bushing 13.

[0056] This embodiment also provides a vehicle, including a main frame and the above-mentioned suspension system. The main frame is connected to the suspension system.

[0057] In this application, unless otherwise clearly specified and limited, terms such as "assembly" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined. Also, descriptions such as "some embodiments" and "exemplarily" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application.

[0059] The schematic descriptions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0060] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and the specification of the present application shall fall within the scope covered by the patent of the present application.

Claims

1. A suspension control arm for a vehicle, characterized in that: include: A control arm body, the control arm body having a first connection end connected to the steering knuckle of the vehicle and a second connection end connected to the subframe of the vehicle, the first connection end being provided with a connection hole; A fastening ring, which is arranged on one side of the first connecting end of the control arm body along the axial direction of the connecting hole, and is fixedly connected to the first connecting end of the control arm body, and is used to cooperate with a fastener passing through the steering knuckle and the connecting hole.

2. The suspension control arm according to claim 1, characterized in that: The fastening ring includes an inner embedment segment and an outer ring segment that are connected to each other. The inner embedment segment and the outer ring segment are arranged opposite to each other along the axial direction of the connecting hole. The inner embedment segment is arranged in the connecting hole, and the outer ring segment is arranged outside the connecting hole. The inner embedment segment and the outer ring segment are both used to cooperate and connect with fasteners that penetrate the steering knuckle and the connecting hole.

3. The suspension control arm according to claim 2, characterized in that: The diameter of the outer ring segment is greater than the diameter of the inner segment.

4. The suspension control arm according to claim 2, characterized in that: The outer peripheral side of the inner embedded section is provided with a latching tooth, the hole wall of the connecting hole is provided with a latching groove, the inner embedded section is arranged in the connecting hole, and the latching tooth is connected in the latching groove.

5. The suspension control arm according to claim 2, characterized in that: The depth of the inner block segment is smaller than the depth of the connecting hole.

6. The suspension control arm according to claim 2, characterized in that: The connecting hole comprises a first hole segment and a second hole segment arranged along the axial direction of the connecting hole, wherein the diameter of the first hole segment is greater than the diameter of the second hole segment. The inner embedding section is arranged in the first hole section and is spaced apart from the second hole section.

7. The suspension control arm according to any one of claims 1 to 6, characterized in that: The fastening ring is provided with a thread structure, and the thread structure is used to cooperate with a fastener penetrating the steering knuckle and the connecting hole; and / or, The control arm body is an aluminum structure.

8. The suspension control arm according to claim 1, characterized in that: The first connecting end includes a first connecting segment, an intermediate connecting segment and a second connecting segment. The first connecting segment and the second connecting segment are spaced apart from each other. The first connecting segment and the second connecting segment are connected to two opposite sides of the intermediate connecting segment in a one-to-one correspondence. The connecting hole is located in the first connecting segment or the second connecting segment.

9. A suspension system, characterized in that: It comprises a steering knuckle, a subframe and the suspension control arm according to any one of claims 1 to 8, wherein the first connecting end is connected to the steering knuckle, and the second connecting end is connected to the subframe.

10. A vehicle, characterized in that: It comprises a main frame and the suspension system according to claim 9, wherein the main frame is connected to the suspension system.

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