Steering control arm

Abstract

The utility model belongs to the technical field of control arms, and particularly relates to a steering control arm which is characterized in that arm bodies are integrally formed at two ends of a control arm body, the structural strength is high, the service life is long, a shaft hole is formed in the middle of the control arm body and used for mounting a steering shaft or other rotating parts, and a buffer sleeve is arranged in the shaft hole. The buffering sleeve is arranged on the base to absorb and disperse impact force and vibration generated in the rotating process, the buffering sleeve is sequentially provided with an inner ring, a first rubber layer, a middle sleeve, a second rubber layer and an outer ring from inside to outside, the first rubber layer and the second rubber layer are both in vulcanization connection with the middle sleeve, and connecting assemblies are arranged at the two ends of the buffering sleeve, so that replacement of single parts in the buffering sleeve is facilitated; therefore, the problem that the maintenance cost is high due to the fact that an existing control arm buffering sleeve is of an integral structure and the whole body needs to be replaced after part of parts are damaged is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of control arms, and particularly relates to a steering control arm. Background Art

[0002] In an automotive steering system, as a key component, the performance of the steering control arm directly affects the handling stability and driving safety of the vehicle. Essentially, the steering control arm is crucial for the comfort and handling stability of the vehicle. Existing steering control arms often have problems of large vibration and easy wear when bearing complex and variable loads. Content of the Utility Model

[0003] The purpose of the utility model is to provide a steering control arm for solving the problems mentioned in the above background art in view of the existing technical problems.

[0004] In view of this, the utility model provides a steering control arm. Arm bodies are arranged at both ends of the control arm body, a shaft hole is opened in the middle of the control arm body, and a buffer sleeve is arranged in the shaft hole;

[0005] Among them, the buffer sleeve includes an inner ring, a first rubber layer, a middle sleeve, a second rubber layer and an outer ring which are arranged in sequence from the inside to the outside;

[0006] A connecting component, and connecting components are arranged at both ends of the buffer sleeve.

[0007] In the above technical solution, further, a concave inner arc is arranged in the middle of the outer surface of the inner ring, a convex arc-shaped structure is arranged in the middle of the middle sleeve, one side of the first rubber layer is arranged to match the concave inner arc of the inner ring, and the other side of the first rubber layer is arranged to match the inner side of the arc-shaped structure of the middle sleeve for increasing the contact area between the first rubber layer and the inner ring and the middle sleeve; one side of the second rubber layer is arranged to match the outer side of the arc-shaped structure of the middle sleeve for increasing the contact area between the second rubber layer and the middle sleeve.

[0008] In the above technical solution, further, the connecting component includes a first annular groove opened on the end face of the inner ring, a second annular groove is opened on the end face of the outer ring, a first connecting ring and a second connecting ring are respectively embedded and slidably connected inside the first annular groove and the second annular groove, a plurality of connecting bolts are respectively penetrated and rotatably connected on the outer surfaces of the first connecting ring and the second connecting ring, and threaded holes matched with the connecting bolts are opened on the inner walls of the first annular groove and the second annular groove.

[0009] In the above technical solution, further, the connecting component further includes an annular groove. The end faces of the first rubber layer, the middle sleeve, and the second rubber layer are provided with annular grooves. An annular protective pad is arranged in the annular groove. Both ends of the annular protective pad are fixedly connected to the first connecting ring and the second connecting ring respectively. A plurality of connecting rods are fixedly connected in an annular array on one side of the outer surface of the annular protective pad corresponding to the inner ring and the outer ring. The end faces of the inner ring and the outer ring are both provided with limiting holes matching the connecting rods, and the cross-sectional shape of the limiting holes is the same as that of the connecting rods.

[0010] In the above technical solution, further, it further includes a connecting hole. One end of the arm body is provided with a through connecting hole, and a connector is arranged in the connecting hole. The connector is fixedly connected to the arm body.

[0011] In the above technical solution, further, the arm body is provided with a first connecting groove at the inner wall corresponding to the connecting hole, and the side part of the connector is provided with a second connecting groove. When the connector is arranged in the connecting hole, the second connecting groove corresponds to and communicates with the first connecting groove, and a locking block is inserted into the second connecting groove and the first connecting groove.

[0012] In the above technical solution, further, both the inner ring and the outer ring are made of metal.

[0013] In the above technical solution, further, both arm bodies are provided with weight-reducing grooves.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. A buffer sleeve is arranged in the shaft hole to absorb and disperse the impact force and vibration generated during rotation.

[0016] 2. Connecting components are arranged at both ends of the buffer sleeve, which is convenient for replacing single components inside the buffer sleeve, thus solving the problem that the existing control arm buffer sleeve is an integral structure and high maintenance costs are caused by the need to replace the whole when some components are damaged.

[0017] 3. Both arm bodies are provided with weight-reducing grooves for reducing the mass of the arm bodies. On the premise of ensuring the strength of the arm bodies, the weight of the arm bodies is reduced, which is more beneficial to reducing mechanical vibration and improving efficiency. Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the present utility model;

[0019] Figure 2 is the exploded view of the present utility model;

[0020] Figure 3 is the internal structural schematic diagram of the buffer sleeve of the present utility model;

[0021] Figure 4 is the present utility modelFigure 3 Partial enlarged view at position A in the [device];

[0022] Figure 5 It is a schematic structural view of the sleeve in the present utility model;

[0023] The markings in the figure are indicated as: 1 - controller arm body, 2 - arm body, 3 - shaft hole, 4 - inner ring, 5 - first rubber layer, 6 - middle sleeve, 7 - second rubber layer, 8 - outer ring, 9 - concave inner arc, 10 - arc structure, 11 - first annular groove, 12 - second annular groove, 13 - first connecting ring, 14 - second connecting ring, 15 - connecting bolt, 16 - annular protective pad, 17 - connecting rod, 18 - limiting hole, 19 - circular ring groove, 20 - connector, 21 - first connecting groove, 22 - second connecting groove, 23 - locking block, 24 - weight reduction groove, 25 - connecting hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present application will be clearly described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0025] Embodiment 1:

[0026] This embodiment provides a steering control arm, including:

[0027] A control arm body 1, with arm bodies 2 provided at both ends of the control arm body 1, a shaft hole 3 opened in the middle of the control arm body 1, and a buffer sleeve provided in the shaft hole 3;

[0028] Among them, the buffer sleeve includes an inner ring 4, a first rubber layer 5, a middle sleeve 6, a second rubber layer 7, and an outer ring 8 arranged in sequence from the inside out;

[0029] A connection component, with connection components provided at both ends of the buffer sleeve.

[0030] It can be seen from this embodiment that the arm bodies 2 are integrally formed at both ends of the control arm body 1, with high structural strength and long service life. A shaft hole 3 is opened in the middle of the control arm body 1 for installing a steering shaft or other rotating components. A buffer sleeve is provided in the shaft hole 3 to absorb and disperse the impact force and vibration generated during rotation. The buffer sleeve includes an inner ring 4, a first rubber layer 5, a middle sleeve 6, a second rubber layer 7, and an outer ring 8 arranged in sequence from the inside out. Both the first rubber layer 5 and the second rubber layer 7 are vulcanized and connected to the middle sleeve 6. Connection components are provided at both ends of the buffer sleeve, facilitating the replacement of individual components inside the buffer sleeve, thereby solving the problem that the existing control arm buffer sleeve is an integral structure and high maintenance costs are caused by the need to replace the whole when some components are damaged.

[0031] Example 2:

[0032] This embodiment provides a steering control arm. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0033] In the middle of the outer surface of the inner ring 4, a concave inner arc 9 is provided. In the middle of the middle sleeve 6, a convex arc structure 10 is provided. One side of the first rubber layer 5 is arranged to match the concave inner arc 9 of the inner ring 4, and the other side of the first rubber layer 5 is arranged to match the inner side of the arc structure 10 of the middle sleeve 6, so as to increase the contact area between the first rubber layer 5 and the inner ring 4 and the middle sleeve 6; One side of the second rubber layer 7 is arranged to match the outer side of the arc structure 10 of the middle sleeve 6, so as to increase the contact area between the second rubber layer 7 and the middle sleeve 6.

[0034] It can be seen from this embodiment that a concave inner arc 9 is provided in the middle of the outer surface of the inner ring 4, and a convex arc structure 10 is provided in the middle of the middle sleeve 6. The two sides of the first rubber layer 5 are respectively arranged to match the concave inner arc 9 of the inner ring 4 and the inner side of the arc structure 10 of the middle sleeve 6 to increase the contact area and buffering effect. The second rubber layer 7 is arranged to match the outer side of the arc structure 10 of the middle sleeve 6 to further enhance the buffering performance. The middle sleeve 6 is made of plastic, and PA6GF30 material can be selected, which has high tensile strength, bending strength and impact toughness. When the control arm bears complex and changeable loads, the middle sleeve 6 will deform together with the first rubber layer 5 and the second rubber layer 7, greatly reducing the impact force and improving the vibration damping effect. When an axial force is applied to the inner ring 4, the first rubber layer 5 is not only sheared, but also subjected to the compression force of the concave inner arc 9 of the inner ring 4, thereby improving the axial load.

[0035] Example 3:

[0036] This embodiment provides a steering control arm. In addition to including the technical solutions of the above embodiment, it also has the following technical features.

[0037] The connecting component includes a first annular groove 11 opened on the end face of the inner ring 4, a second annular groove 12 opened on the end face of the outer ring 8. A first connecting ring 13 and a second connecting ring 14 are respectively embedded and slidably connected inside the first annular groove 11 and the second annular groove 12. A plurality of connecting bolts 15 are respectively penetrated and rotatably connected on the outer surfaces of the first connecting ring 13 and the second connecting ring 14. Threaded holes matching the connecting bolts 15 are opened on the inner walls of the first annular groove 11 and the second annular groove 12.

[0038] As can be seen from this embodiment, on the end face of the inner ring 4, there is a first annular groove 11, and on the end face of the outer ring 8, there is a second annular groove 12. A first connecting ring 13 and a second connecting ring 14 are respectively embedded and slidably connected in the first annular groove 11 and the second annular groove 12. A plurality of connecting bolts 15 are rotatably connected through the outer surfaces of the first connecting ring 13 and the second connecting ring 14, and are matched with the threaded holes opened on the inner walls of the first annular groove 11 and the second annular groove 12 to achieve a firm connection. At the same time, the first connecting ring 13 and the second connecting ring 14 can also protect the inner ring 4 and the outer ring 8. When parts are damaged after long-term use, the first connecting ring 13 and the second connecting ring 14 are removed, and the corresponding parts can be replaced, reducing the maintenance cost, thus solving the problem that the existing buffer sleeve is an integral structure, and the overall replacement is required when some parts are damaged, resulting in high maintenance costs.

[0039] Embodiment 4:

[0040] This embodiment provides a steering control arm. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0041] The connecting component further includes an annular groove 19. Annular grooves 19 are opened on the end faces of the first rubber layer 5, the middle sleeve 6, and the second rubber layer 7. An annular protective pad 16 is arranged in the annular groove 19. Both ends of the annular protective pad 16 are fixedly connected to the first connecting ring 13 and the second connecting ring 14 respectively. On one side of the outer surface of the annular protective pad 16 and at positions corresponding to the inner ring 4 and the outer ring 8, a plurality of connecting rods 17 are fixedly connected in an annular array. Limiting holes 18 matching the connecting rods 17 are opened on the end faces of the inner ring 4 and the outer ring 8, and the cross-sectional shape of the limiting holes 18 is the same as the cross-sectional shape of the connecting rods 17.

[0042] As can be seen from this embodiment, annular grooves 19 are opened on the end faces of the first rubber layer 5, the middle sleeve 6, and the second rubber layer 7. An annular protective pad 16 is arranged in the annular groove 19. The annular protective pad 16 is made of wear-resistant rubber. Both ends of the annular protective pad 16 are fixedly connected to the first connecting ring 13 and the second connecting ring 14. The cross-sections of the annular groove 19 and the annular protective pad 16 are both arc-shaped. On one side of the outer surface of the annular protective pad 16 and at positions corresponding to the inner ring 4 and the outer ring 8, a plurality of connecting rods 17 are fixedly connected in an annular array. Limiting holes 18 matching the connecting rods 17 are opened on the end faces of the inner ring 4 and the outer ring 8 to ensure the accurate positioning and stable installation of the annular protective pad 16. At the same time, the annular protective pad 16 can protect the first rubber layer 5, the middle sleeve 6, and the second rubber layer 7.

[0043] Embodiment 5:

[0044] This embodiment provides a steering control arm. In addition to including the technical solutions of the above embodiments, it also has the following technical features.

[0045] It further includes a connection hole 25. One end of the arm body 2 is penetrated with the connection hole 25, and a connector 20 is arranged in the connection hole 25. The connector 20 is fixedly connected to the arm body 2.

[0046] As can be seen from this embodiment, a connection hole 25 is provided at one end of the arm body 2. The connection hole 25 is provided for installing the connector 20, and the connector 20 is fixedly connected to the arm body 2.

[0047] Embodiment 6:

[0048] This embodiment provides a steering control arm. In addition to including the technical solutions of the above embodiments, it further has the following technical features.

[0049] At the inner wall of the arm body 2 corresponding to the connection hole 25, a first connection groove 21 is provided. At the side part of the connector 20, a second connection groove 22 is provided. When the connector 20 is arranged in the connection hole 25, the second connection groove 22 corresponds and communicates with the first connection groove 21, and a locking block 23 is inserted into the second connection groove 22 and the first connection groove 21.

[0050] As can be seen from this embodiment, the connector 20 and the arm body 2 are specifically connected through the locking block 23; the second connection groove 22 of the connector 20 and the first connection groove 21 of the arm body 2 are butted to form a closed connection hole, which is matched with the locking block 23. The locking block 23 is inserted into the connection hole to realize the fixed connection between the connector 20 and the arm body 2. It can be understood that the fixed connection between the connector 20 and the arm body 2 means that there is no relative movement between the two after the connection, rather than that the connector 20 and the arm body 2 cannot be disassembled after the connection.

[0051] Embodiment 7:

[0052] This embodiment provides a steering control arm. In addition to including the technical solutions of the above embodiments, it further has the following technical features.

[0053] Both the inner ring 4 and the outer ring 8 are made of metal.

[0054] As can be seen from this embodiment, both the inner ring 4 and the outer ring 8 are made of metal, which can ensure sufficient strength and durability.

[0055] Embodiment 8:

[0056] This embodiment provides a steering control arm. In addition to including the technical solutions of the above embodiments, it further has the following technical features.

[0057] Weight reduction grooves 24 are provided on both of the two arm bodies 2.

[0058] As can be seen from this embodiment, weight-reducing grooves 24 for reducing the mass of the arm bodies 2 are provided on both of the two arm bodies 2, which reduces the weight of the arm bodies 2 while ensuring the strength of the arm bodies 2, and is more conducive to reducing mechanical vibration and improving efficiency.

[0059] The embodiments of the present application have been described above with reference to the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A steering control arm, characterized in that: include: A control arm body (1), wherein arm bodies (2) are arranged at both ends of the control arm body (1), an axial hole (3) is opened in the middle of the control arm body (1), and a buffer sleeve is arranged in the axial hole (3); The buffer sleeve comprises an inner ring (4), a first rubber layer (5), a middle sleeve (6), a second rubber layer (7) and an outer ring (8) which are arranged in sequence from the inside to the outside; Connecting components, both ends of the buffer sleeve are provided with connecting components; The inner ring (4) is provided with a concave inner arc (9) in the middle of its outer surface, the middle sleeve (6) is provided with a convex arc structure (10), one side of the first rubber layer (5) is matched with the concave inner arc (9) of the inner ring (4), and the other side of the first rubber layer (5) is matched with the inner side of the arc structure (10) of the middle sleeve (6), so as to increase the contact area between the first rubber layer (5) and the inner ring (4) and the middle sleeve (6); one side of the second rubber layer (7) is matched with the outer side of the arc structure (10) of the middle sleeve (6), so as to increase the contact area between the second rubber layer (7) and the middle sleeve (6).

2. A steering control arm according to claim 1, characterized in that: The connection assembly comprises a first annular groove (11) formed on the end face of the inner ring (4), a second annular groove (12) formed on the end face of the outer ring (8), a first connecting ring (13) and a second connecting ring (14) respectively embedded in the first annular groove (11) and the second annular groove (12) for sliding connection, a plurality of connecting bolts (15) are rotatably connected to the outer surfaces of the first connecting ring (13) and the second connecting ring (14), and threaded holes matching the connecting bolts (15) are formed on the inner walls of the first annular groove (11) and the second annular groove (12).

3. A steering control arm according to claim 2, characterized in that: The connection assembly further comprises an annular groove (19), the end surfaces of the first rubber layer (5), the middle sleeve (6) and the second rubber layer (7) are provided with an annular groove (19), an annular protective pad (16) is arranged in the annular groove (19), the two ends of the annular protective pad (16) are respectively fixedly connected to the first connecting ring (13) and the second connecting ring (14), a plurality of connecting rods (17) are fixedly connected in an annular array at one side of the outer surface of the annular protective pad (16) and at positions corresponding to the inner ring (4) and the outer ring (8), the end surfaces of the inner ring (4) and the outer ring (8) are provided with limiting holes (18) matched with the connecting rods (17), and the cross-sectional shape of the limiting holes (18) is the same as the cross-sectional shape of the connecting rods (17).

4. A steering control arm according to claim 3, characterized in that: It also comprises a connection hole (25), one end of the arm body (2) is penetrated by the connection hole (25), a connector (20) is arranged in the connection hole (25), and the connector (20) is fixedly connected to the arm body (2).

5. A steering control arm according to claim 4, characterized in that: The arm body (2) is provided with a first connection groove (21) at an inner wall corresponding to the connection hole (25), and a second connection groove (22) is provided at a side of the connector (20); when the connector (20) is arranged in the connection hole (25), the second connection groove (22) is correspondingly connected to the first connection groove (21), and a locking block (23) is inserted into the second connection groove (22) and the first connection groove (21).

6. A steering control arm according to claim 5, characterized in that: The inner ring (4) and the outer ring (8) are both made of metal.

7. A steering control arm according to claim 6, characterized in that: The two arm bodies (2) are both provided with weight-reducing grooves (24).

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