Swing arm assembly and vehicle

Abstract

The utility model relates to a swing arm assembly and a vehicle, and belongs to the technical field of swing arms, the swing arm assembly comprises a steering knuckle, a swing arm assembly and a steering assembly, the steering knuckle is provided with a first through hole, the swing arm assembly is provided with a steering hole, the steering assembly comprises an adapter, a connecting piece, a limiting piece and a locking piece, one end of the adapter is rotatably arranged in the steering hole, and the other end of the adapter is rotatably arranged in the connecting piece; the other end of the spring penetrates through the first through hole; the connecting piece is connected to the end, away from the swing arm assembly, of the adapter. The limiting piece is clamped to the end, close to the adapter, of the connecting piece and arranged on the side, away from the swing arm assembly, of the first through hole, and the limiting piece can abut against the steering knuckle; the locking piece is arranged on the side, away from the adapter, of the limiting piece and connected with the connecting piece, and the locking piece abuts against the steering knuckle. The steering assembly is provided with the limiting piece, the limiting piece can abut against the steering knuckle when the locking piece is loosened, and therefore the adapter piece is effectively prevented from falling off from the first through hole, the swing arm assembly is prevented from being separated from the steering knuckle, and the structural safety is improved.

Description

Technical Field

[0001] This application relates to the field of swing arm technology, and more particularly to a swing arm assembly and a vehicle. Background Technology

[0002] Currently, as passenger vehicle handling performance requirements become increasingly stringent, front double wishbone suspensions are becoming more and more common. Since the lower control arm and steering knuckle of the front suspension use a tapered pin connection, there are many influencing factors during the tightening process, which can easily lead to the nuts loosening and thus cause the control arm to fall off. Utility Model Content

[0003] The purpose of this utility model is to provide a swing arm assembly to solve the problem that existing swing arms are prone to falling off; another purpose of this application is to provide a vehicle.

[0004] Technical solution: A swing arm assembly according to an embodiment of this application includes:

[0005] Steering knuckle, having a first through hole;

[0006] The swing arm assembly has a steering hole;

[0007] Steering components, including:

[0008] The adapter has one end rotatably disposed in the turning hole and the other end passing through the first through hole;

[0009] A connector is attached to the end of the adapter that is furthest from the swing arm assembly;

[0010] A limiting member is engaged with one end of the connector near the adapter and is disposed on the side of the first through hole away from the swing arm assembly. The limiting member can abut against the steering knuckle.

[0011] A locking element is disposed on the side of the limiting element away from the adapter and connected to the connecting element, and the locking element abuts against the steering knuckle.

[0012] In some embodiments, the connector includes:

[0013] The first body is connected to the locking element;

[0014] A connecting part is disposed between the first body and the adapter, and is connected to the first body and the adapter respectively. The first body, the connecting part and the connecting part form a limiting groove. A portion of the limiting member is disposed in the limiting groove and is connected to the connecting part.

[0015] In some embodiments, the inner diameter of the first through hole gradually decreases along the direction from the adapter toward the connector; the maximum outer diameter of the limiting member is greater than the minimum inner diameter of the first through hole.

[0016] In some embodiments, the minimum inner diameter of the first through hole is L, and the maximum outer diameter of the limiting member is L1, satisfying: 1.2L≤L1≤1.5L.

[0017] In some embodiments, the steering knuckle includes:

[0018] The second body has a third through hole;

[0019] A tapered sleeve is fitted into the third through hole, and the tapered sleeve is provided with the first through hole;

[0020] Wherein, along the direction of the adapter toward the connector, the first through hole penetrates the tapered sleeve, and the limiting member can abut against the tapered sleeve.

[0021] In some embodiments, the limiting member is disposed in the third through hole, along the direction of the adapter toward the connector, the limiting member is spaced apart from the tapered sleeve, the limiting member is spaced apart from the locking member, and the locking member abuts against the second body.

[0022] In some embodiments, the distance between the limiting member and the cone sleeve is S, and the distance between the limiting member and the locking member is S1, satisfying: S1≥2S.

[0023] In some embodiments, the adapter includes:

[0024] The ball head is rotatably disposed within the steering hole;

[0025] A tapered pin is connected to the ball head, the tapered pin is embedded in the tapered sleeve, and the outer side wall of the tapered pin is in contact with the inner side wall of the first through hole.

[0026] In some embodiments, the limiting member is provided with:

[0027] The second through hole, through which a portion of the connector passes;

[0028] The notch penetrates the side wall of the limiting member and communicates with the second through hole.

[0029] Accordingly, a vehicle described in this application includes the swing arm assembly as described in any of the foregoing embodiments.

[0030] Beneficial Effects: Compared with the prior art, a swing arm assembly according to an embodiment of this application includes a steering knuckle, a swing arm assembly, and a steering assembly. The steering knuckle has a first through hole, the swing arm assembly has a steering hole, and the steering assembly includes an adapter, a connector, a limiting member, and a locking member. One end of the adapter is rotatably disposed in the steering hole, and the other end passes through the first through hole. The connector is connected to the end of the adapter away from the swing arm assembly. The limiting member is engaged with the end of the connector near the adapter and is disposed on the side of the first through hole away from the swing arm assembly, and the limiting member can abut against the steering knuckle. The locking member is disposed on the side of the limiting member away from the adapter and is connected to the connector, and the locking member abuts against the steering knuckle. The swing arm assembly of this application achieves a rotatable connection between the steering knuckle and the swing arm assembly by setting a steering assembly. The steering assembly is provided with a limiting member, which can abut against the steering knuckle when the locking member is loose, thereby effectively preventing the adapter from falling out of the first through hole, and thus avoiding separation of the swing arm assembly from the steering knuckle, thereby improving structural safety.

[0031] Compared with the prior art, a vehicle according to an embodiment of this application includes the swing arm assembly as described in any of the foregoing embodiments. It is understood that the vehicle of this application includes all the technical features and effects of the aforementioned swing arm assembly, which will not be repeated here.

[0032] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0035] Figure 1 This is a schematic diagram of the overall structure of a swing arm assembly according to an embodiment of the application;

[0036] Figure 2 This is a cross-sectional view of a swing arm assembly according to an embodiment of the application;

[0037] Figure 3 yes Figure 2 Enlarged view of section A;

[0038] Figure 4 yes Figure 3 Enlarged view of section B;

[0039] Figure 5 This is a schematic diagram of the structure of the limiting member according to an embodiment of this application;

[0040] Figure 6 This is a schematic diagram of the connection between the adapter and the connector in an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Steering knuckle; 110. First through hole; 120. Second body; 121. Third through hole; 130. Tapered sleeve;

[0043] 200. Swing arm assembly; 210. Steering hole;

[0044] 300. Steering assembly; 310. Adapter; 311. Ball head; 312. Tapered pin; 320. Connector; 321. First body; 322. Connecting part; 323. Limiting groove; 330. Limiting element; 331. Second through hole; 332. Notch; 340. Locking element. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0046] In the description of this application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, 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 number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified. In the description of this application, "perpendicular" means completely perpendicular to 90° or almost completely perpendicular, for example, the range of included angles from 80° to 100° is considered perpendicular. Similarly, "parallel" means completely parallel or almost completely parallel, for example, the range of completely parallel angles from 10° is considered parallel.

[0047] In related technologies, as passenger vehicles have increasingly higher requirements for handling performance, front double wishbone suspensions are becoming more and more common. Since the lower control arm and steering knuckle of the front suspension are fitted with tapered pins, there are many influencing factors during the tightening process, which can easily lead to the nuts loosening and thus cause the control arm to fall off.

[0048] In view of this, embodiments of this application provide a swing arm assembly aimed at solving the above-mentioned problems.

[0049] Please refer to the following: Figures 1 to 3 The present application provides a swing arm assembly, including a steering knuckle 100, a swing arm assembly 200 and a steering assembly 300. The steering knuckle 100 has a first through hole 110, the swing arm assembly 200 has a steering hole 210, and the steering assembly 300 includes a transition member 310, a connecting member 320, a limiting member 330 and a locking member 340. One end of the transition member 310 is rotatably disposed in the steering hole 210, and the other end passes through the first through hole 110. The connector 320 is connected to the end of the adapter 310 away from the swing arm assembly 200; the limiting member 330 is snapped into the end of the connector 320 near the adapter 310 and is disposed on the side of the first through hole 110 away from the swing arm assembly 200, and the limiting member 330 can abut against the steering knuckle 100; the locking member 340 is disposed on the side of the limiting member 330 away from the adapter 310 and is connected to the connector 320, and the locking member 340 abuts against the steering knuckle 100.

[0050] In this embodiment, the swing arm assembly achieves a rotatable connection between the steering knuckle 100 and the swing arm assembly 200 by setting a steering component 300. The steering component 300 is provided with a limiting member 330, which can abut against the steering knuckle 100 when the locking member 340 is loose, thereby effectively preventing the adapter 310 from falling out of the first through hole 110, thus avoiding the separation of the swing arm assembly 200 from the steering knuckle 100, thereby improving structural safety.

[0051] In this embodiment, the steering knuckle 100 and the swing arm assembly 200 are respectively used to connect to corresponding parts on the vehicle. The steering assembly 300 is used to achieve a rotatable connection between the steering knuckle 100 and the swing arm assembly 200. The adapter 310 is fixedly connected to the steering knuckle 100 and rotatably connected to the swing arm assembly 200, thus enabling the swing arm assembly 200 to rotate. The locking member 340 is connected to the connecting member 320 and abuts against the steering knuckle 100, thereby achieving a fixed locking of the steering assembly 300 and the steering knuckle 100. The limiting piece is connected to the connecting member 320 and abuts against the steering knuckle 100 when the locking member 340 is released, thereby preventing the entire adapter 310 and connecting member 320 from falling out of the first through hole 110 of the steering knuckle 100, thus ensuring the safety of the swing arm assembly.

[0052] Please refer to the following: Figure 4 and Figure 6 In some embodiments, the connector 320 includes a first body 321 and a connecting portion 322. The first body 321 is connected to the locking member 340. The connecting portion 322 is disposed between the first body 321 and the adapter 310, and is connected to the first body 321 and the adapter 310 respectively. The first body 321, the connecting portion 322 and the connecting portion 322 form a limiting groove 323. A portion of the limiting member 330 is disposed in the limiting groove 323 and is connected to the connecting portion 322.

[0053] In this embodiment, the first body 321 is used to connect and fix with the locking part, and the connecting part 322 is used to transfer the adapter 310 to the first body 321, thereby realizing an effective connection between the first body 321 and the adapter 310. The first body 321, the connecting part 322, and the adapter 310 form a limiting groove 323. By engaging the limiting member 330 in the limiting groove 323, the groove wall of the limiting groove 323 can abut and limit the limiting member 330 in the axial direction of the steering assembly 300, thereby ensuring the stability of the axial position of the limiting member 330. This provides a better holding force when the limiting member 330 abuts against the steering knuckle 100.

[0054] It should be noted that the limiting member 330 is only partially embedded in the limiting groove 323, and a part of it needs to extend to the outside of the groove, so as to provide a contact surface for the limiting member 330 to abut against the steering knuckle 100.

[0055] It is understood that the outer periphery of the first body 321 in this embodiment may be provided with external threads, and the locking member 340 may be a nut with internal threads, and the locking member 340 is threadedly connected to the first body 321.

[0056] In some embodiments, along the direction from the adapter 310 toward the connector 320, the inner diameter of the first through hole 110 gradually decreases; the maximum outer diameter of the limiting member 330 is greater than the minimum inner diameter of the first through hole 110.

[0057] In this embodiment, since the inner diameter of the first through hole 110 gradually decreases along the direction (i.e., axial) from the adapter 310 toward the connector 320, the diameter of the first through hole 110 near the limiting member 330 is the minimum diameter of the first through hole 110, and the maximum outer diameter of the limiting member 330 is greater than the minimum inner diameter of the first through hole 110. At this time, it can be ensured that the orthogonal projection of the limiting member 330 along the axial direction of the steering assembly 300 on the steering knuckle 100 is at least partially located outside the first through hole 110, thereby enabling the limiting member 330 to effectively abut against the steering knuckle 100.

[0058] Please refer to the following: Figure 3 and Figure 4Furthermore, in some embodiments, the minimum inner diameter of the first through hole 110 is L, and the maximum outer diameter of the limiting member 330 is L1, satisfying: 1.2L≤L1≤1.5L.

[0059] In this embodiment, when 1.2L ≤ L1, the maximum outer diameter of the limiting member 330 is greater than or equal to 1.2 times the minimum outer diameter of the first through hole 110. This ensures that the limiting member 330 has sufficient contact area with the steering knuckle 100. In the event of nut loosening or detachment, the sufficient contact area between the limiting member 330 and the steering knuckle 100 guarantees effective contact and prevents the adapter 310 from detaching from the first through hole 110, thereby reducing the possibility of swing arm assembly failure. When L1 ≤ 1.5L, the maximum outer diameter of the limiting member 330 is less than or equal to 1.5 times the minimum outer diameter of the first through hole 110. This ensures that the limiting member 330 has sufficient contact area while avoiding direct contact between the limiting member 330 and the steering knuckle 100 due to an excessively large outer diameter, thus ensuring smooth assembly of the steering assembly 300 and the steering knuckle 100.

[0060] In the embodiments of this application, the value of L1 is between 1.2 and 1.5 times L, wherein L1 can be any value among 1.2L, 1.25L, 1.3L, 1.35L, 1.4L, 1.45L, and 1.5L, or a range between two adjacent values.

[0061] The dimensions of L1 and L can both be measured using conventional dimensional measuring tools.

[0062] Please refer to the table below for a detailed understanding.

[0063] Serial Number <L1> Is the adapter detached? Example 1 1.2L no Example 2 1.35L no Example 3 1.5L no

[0064] like Figure 3 As shown, in some embodiments, the steering knuckle 100 includes a second body 120 and a tapered sleeve 130. The second body 120 has a third through hole 121, and the tapered sleeve 130 is embedded in the third through hole 121. The tapered sleeve 130 has a first through hole 110. The first through hole 110 penetrates the tapered sleeve 130 along the direction from the adapter 310 toward the connector 320, and the limiting member 330 can abut against the tapered sleeve 130.

[0065] In this embodiment, the second body 120 is the body of the steering knuckle 100, the tapered sleeve 130 is embedded in the third through hole 121 to improve structural strength, and the adapter 310 is inserted into the first through hole 110 of the tapered sleeve 130 to realize the connection between the steering knuckle 100 and the adapter 310. The limiting member 330 can abut against the tapered sleeve 130 when the nut is loose or comes off, thereby preventing the adapter 310 from coming off the tapered sleeve 130.

[0066] It should be noted that the second body 120 of the steering knuckle 100 is usually made of aluminum or aluminum alloy, and the overall structural strength is not very high. Therefore, in this embodiment, a material with higher structural strength is selected to make the cone sleeve 130, such as chrome vanadium steel, so as to ensure a firm connection between the steering assembly 300 and the cone sleeve 130 and to ensure the structural stability of the swing arm assembly 200.

[0067] Please refer to the following: Figure 3 and Figure 4 In some embodiments, the limiting member 330 is disposed in the third through hole 121, along the direction of the adapter 310 toward the connector 320, the limiting member 330 is spaced apart from the tapered sleeve 130, the limiting member 330 is spaced apart from the locking member 340, and the locking member 340 abuts against the second body 120.

[0068] In this embodiment, the limiting member 330 is disposed within the third through hole 121, and the tapered sleeve 130 is also disposed within the third through hole 121. This ensures that when the nut is loosened, the limiting member 330 directly abuts against the tapered sleeve 130 without contacting the second body 120, preventing the limiting member 330 from extending between the second body 120 and the locking member 340 and causing assembly interference. Furthermore, in this embodiment, the limiting member 330 and the tapered sleeve 130 are spaced apart, which reduces the possibility of collision noise between the tapered sleeve 130 and the limiting member 330 during the use of the swing arm assembly 200. The locking member 340 abuts against the second body 120 to lock, achieving a fixed connection between the entire steering assembly 300 and the steering knuckle 100. The spaced arrangement between the limiting member 330 and the locking member 340 provides redundant space for the adapter 310 to sink due to the transition locking of the locking member 340 towards the limiting member 330, thus avoiding direct contact between the locking member 340 and the limiting member 330. It also reduces the possibility of collision noise between the limiting member 330 and the locking member 340.

[0069] Furthermore, in some embodiments, the distance between the limiting member 330 and the cone sleeve 130 is S, and the distance between the limiting member 330 and the locking member 340 is S1, satisfying: S1≥2S.

[0070] In this embodiment, the distance between the locking member 340 and the limiting member 330 is greater than or equal to twice the distance between the limiting member 330 and the cone sleeve 130. This provides sufficient redundancy space for the locking member 340 to be over-locked, reducing the possibility of contact between the locking member 340 and the limiting member 330.

[0071] like Figure 6As shown, in some embodiments, the adapter 310 includes a ball head 311 and a tapered pin 312. The ball head 311 is rotatably disposed in the turning hole 210. The tapered pin 312 is connected to the ball head 311 and is embedded in the tapered sleeve 130. The outer side wall of the tapered pin 312 is in contact with the inner side wall of the first through hole 110.

[0072] In this embodiment, the adapter 310 can be a ball head pin, wherein the ball head 311 is rotatably disposed within the steering hole 210 and connected to the rocker arm assembly 200 by a limiting structure to prevent the ball head 311 from falling out of the steering hole 210, thereby realizing the rotational connection between the adapter assembly and the rocker arm assembly 200. The tapered pin portion 312 is used to cooperate with the tapered sleeve 130 to realize the fixed connection between the steering assembly 300 and the steering knuckle 100. The tapered pin and the tapered sleeve 130 fit tightly together to ensure the stability of their mutual engagement.

[0073] like Figure 5 As shown, in some embodiments, the limiting member 330 is provided with a second through hole 331 and a notch 332, a portion of the connecting member 320 passes through the second through hole 331, and the notch 332 penetrates the side wall of the limiting member 330 and communicates with the second through hole 331.

[0074] In this embodiment, the second through hole 331 is used to accommodate the connector 320, and the sight limiting member 330 engages with the connector 320. The notch 332 ensures that the second through hole 331 of the limiting member 330 is not a closed hole. The notch 332 allows the limiting member 330 to be extended circumferentially to both sides at the notch 332 location, temporarily increasing the diameter of the second through hole 331, allowing the first body 321 to pass through it. Therefore, this structure of the limiting member 330 facilitates its assembly. It only requires stretching the limiting member 330 circumferentially from the notch 332 location to both sides, gradually moving it from the end of the first body 321 away from the connecting portion 322 towards the connecting portion 322 until it reaches the limiting groove 323. Releasing the limiting member 330 allows it to reset and engage with the outer periphery of the connecting portion 322.

[0075] It should be noted that the limiting member 330 and the connecting part 322 are connected by an interference fit to prevent the limiting member 330 from moving axially along the connecting part 322.

[0076] Accordingly, one embodiment of the present application includes a swing arm assembly as described in any of the foregoing embodiments.

[0077] It is understood that the vehicle described in this application includes all the technical features and effects of the aforementioned swing arm assembly, which will not be repeated here.

[0078] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0079] The foregoing has provided a detailed description of a swing arm assembly and vehicle provided by the embodiments of this application, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A swing arm assembly, characterized in that, include: Steering knuckle, having a first through hole; The swing arm assembly has a steering hole; Steering components, including: The adapter has one end rotatably disposed in the turning hole and the other end passing through the first through hole; A connector is attached to the end of the adapter that is furthest from the swing arm assembly; A limiting member is engaged with one end of the connector near the adapter and is disposed on the side of the first through hole away from the swing arm assembly. The limiting member can abut against the steering knuckle. A locking element is disposed on the side of the limiting element away from the adapter and connected to the connecting element, and the locking element abuts against the steering knuckle.

2. The swing arm assembly according to claim 1, characterized in that, The connector includes: The first body is connected to the locking element; A connecting part is disposed between the first body and the adapter, and is connected to the first body and the adapter respectively. The first body, the connecting part and the connecting part form a limiting groove. A portion of the limiting member is disposed in the limiting groove and is connected to the connecting part.

3. The swing arm assembly according to claim 2, characterized in that, Along the direction from the adapter to the connector, the inner diameter of the first through hole gradually decreases; the maximum outer diameter of the limiting member is greater than the minimum inner diameter of the first through hole.

4. The swing arm assembly according to claim 3, characterized in that, The minimum inner diameter of the first through hole is L, and the maximum outer diameter of the limiting member is L1, satisfying: 1.2L≤L1≤1.5L.

5. The swing arm assembly according to claim 3, characterized in that, The steering knuckle includes: The second body has a third through hole; A tapered sleeve is fitted into the third through hole, and the tapered sleeve is provided with the first through hole; Wherein, along the direction of the adapter toward the connector, the first through hole penetrates the tapered sleeve, and the limiting member can abut against the tapered sleeve.

6. The swing arm assembly according to claim 5, characterized in that, The limiting member is disposed in the third through hole, along the direction of the adapter toward the connector. The limiting member is spaced apart from the tapered sleeve and spaced apart from the locking member. The locking member abuts against the second body.

7. The swing arm assembly according to claim 6, characterized in that, The distance between the limiting member and the cone sleeve is S, and the distance between the limiting member and the locking member is S1, satisfying: S1≥2S.

8. The swing arm assembly according to claim 5, characterized in that, The adapter includes: The ball head is rotatably disposed within the steering hole; A tapered pin is connected to the ball head, the tapered pin is embedded in the tapered sleeve, and the outer side wall of the tapered pin is in contact with the inner side wall of the first through hole.

9. The swing arm assembly according to claim 1, characterized in that, The limiting member is provided with: The second through hole, through which a portion of the connector passes; The notch penetrates the side wall of the limiting member and communicates with the second through hole.

10. A vehicle, characterized in that, Includes the swing arm assembly as described in any one of claims 1 to 9.

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