Suspension control arm for automobile
By introducing a connection mechanism of fixed end and chamfered steps into the fisheye bearing of the automobile suspension control arm, the problem of step effect in high extreme motion of traditional fisheye bearings is solved, achieving a larger rotation range and better suspension performance.
Patent Information
- Application Number
- CN202420469624.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-12
AI Technical Summary
Traditional fish-eye bearings will have a step effect in high extreme movement, limiting the bearing movement and the rotation angle of the wheel hub, affecting the steering limit and overall suspension performance of the car.
A suspension control arm for automobiles is designed, by introducing a connection mechanism for fixed end and chamfered steps into the fish-eye bearing, the fixed end is inserted into the inside of the rotating end, and the chamfered steps are fitted with the rotating end, achieving a larger rotation range.
It improves the effective range of movement of the control arm, expands the rotation angle of the wheel hub, and enhances the steering limit and suspension performance of the car.
Smart Images
Figure CN222610853U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile control arms, in particular to a suspension control arm used for an automobile. Background Art
[0002] Control arms are generally divided into upper control arms and lower control arms. They are usually made of metal, such as aluminum or steel, to ensure sufficient strength and rigidity. One end of the control arm is fixed to the chassis of the car through the suspension system, while the other end is connected to the wheel movement part, such as the front clevis (also known as the wheel hub carrier or steering knuckle). The front clevis is an important component because it not only supports the wheel, but also allows the wheel to rotate and participate in steering.
[0003] Suspension control arms generally use integrated fisheye bearings that are easier to install. They allow the control arms to rotate in multiple directions to meet different needs during vehicle driving. Fisheye bearings are commonly used in high-load rotating joints in the aviation and automation industries. They can withstand large loads and provide smooth movement. The design of fisheye bearings includes an internal active end (inner ring) and a connecting end (outer ring), which are connected by spherical rolling elements (such as balls or rollers) to allow full rotation.
[0004] However, traditional fisheye bearings will have some limitations in high-extreme movements. Due to the necessary step-like structure designed between the inner and outer rings, when the bearing rotates to a certain extreme angle, the interference between the internal components will form a step effect. This step will conflict with the outer ring of the fisheye bearing, resulting in restricted movement of the bearing, which will ultimately limit the extreme rotation angle of the wheel hub, affecting the steering limit of the car and the overall performance of the suspension.
[0005] Based on this, those skilled in the art have proposed a large-angle suspension control arm for automobiles. Utility Model Content
[0006] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a suspension control arm for an automobile.
[0007] The technical solution of the utility model is as follows: a suspension control arm for an automobile, comprising a control arm body, one end of the control arm body is fixedly connected to a bearing seat, a bearing mounting position is arranged inside the bearing seat, a step and a retaining ring groove for limiting the bearing are arranged inside the bearing mounting position, a fisheye bearing is arranged inside the bearing mounting position, and a connecting mechanism is arranged inside the fisheye bearing;
[0008] The connecting mechanism comprises a fixed end and a chamfered step, and the chamfered step is arranged on the outer side of the fixed end.
[0009] Through the above technical means, the fisheye bearing is pressed into the bearing seat by a pressing machine and is limited by a retaining spring, so that the fisheye bearing is fixed.
[0010] As a preferred embodiment, the fisheye bearing is internally rotatably connected with a rotating end, the fixed end is connected to the inside of the rotating end, the bottom of the chamfered step is in contact with the top of the rotating end, and the top of the chamfered step is provided with an arc chamfer of the same size as the outer diameter of the rotating end.
[0011] Through the above-mentioned technical means, the rotating end can be rotated in all directions, and the fixed end is inserted into the interior of the rotating end, and the chamfered step is fitted with the rotating end. In this way, the chamfered step can play a limiting role, and because the arc chamfer on the outside is consistent with the outer diameter of the rotating end, such a setting allows the rotating end to obtain a larger rotation range when rotating, thereby improving the effective range of motion of the control arm.
[0012] As a preferred embodiment, the connecting mechanism further comprises a connecting end, which is arranged at one end of the fixed end and extends to the outside of the bearing seat, and the connecting end is used to be connected to the horn of the car.
[0013] Through the above technical means, the connecting end is connected to the sheep horn, and a socket for matching with the connecting end will be provided on the sheep horn, and the connecting end can be inserted into the socket.
[0014] As a preferred embodiment, the connecting mechanism also includes a locking end, which is arranged on a side of the connecting end away from the fixed end, and the locking end is provided with an external thread structure. The outer thread of the locking end is connected to a nut, and the connecting end is fixed to the car clevis through the cooperation of the locking end and the nut.
[0015] Through the above technical means, when the connecting end is inserted into the socket, the locking end will be exposed on the outside of the horn. At this time, it can be locked by a nut to connect the entire control arm to the horn.
[0016] As a preferred implementation, the other end of the control arm body is fixedly connected to a mounting position, a fixing hole is provided on the mounting position, and the mounting position is connected to the automobile chassis suspension through the fixing hole.
[0017] Through the above-mentioned technical means, the mounting position is connected to the suspension, so that the control arm can reach a stressed state.
[0018] Compared with the prior art, the advantages and positive effects of the utility model are:
[0019] The utility model inserts the fixed end into the interior of the rotating end and fits the chamfered step with the rotating end. With such an arrangement, when the wheel hub rotates to the extreme angle, the chamfered step can slide into the outer ring of the fisheye bearing, so that the rotating end can obtain a larger rotation range when rotating, thereby improving the effective range of motion of the control arm. Compared with the traditional control arm with an integrated fisheye bearing, the utility model can provide a better rotation angle range. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is an isometric view of the control arm of the utility model;
[0021] Figure 2 It is an isometric view of the control arm of the utility model in an assembled state;
[0022] Figure 3 This is an isometric view of the connection mechanism of the utility model;
[0023] Figure 4 It is an isometric view of the disassembled state of the connecting mechanism of the utility model;
[0024] Figure 5 It is a front view of the disassembled state of the connecting mechanism of the utility model and a partial enlarged view;
[0025] Figure 6 It is an isometric view of the connection mechanism of the utility model.
[0026] Legend: 1. Control arm body; 2. Bearing seat; 3. Bearing mounting position; 4. Fisheye bearing; 5. Rotating end; 6. Fixed end; 7. Chamfered step; 8. Connecting end; 9. Locking end; 10. Nut; 11. Mounting position; 12. Fixing hole. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.
[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0029] Example
[0030] like Figure 1-Figure 6As shown, the utility model provides a suspension control arm for an automobile: comprising a control arm body 1, one end of the control arm body 1 is fixedly connected to a bearing seat 2, a bearing mounting position 3 is arranged inside the bearing seat 2, a step and a retaining ring groove for limiting the bearing are arranged inside the bearing mounting position 3, a fisheye bearing 4 is arranged inside the bearing mounting position 3, and a connecting mechanism is arranged inside the fisheye bearing 4;
[0031] The connecting mechanism includes a fixed end 6 and a chamfered step 7, and the chamfered step 7 is arranged on the outer side of the fixed end 6;
[0032] In summary: the fisheye bearing 4 is pressed into the bearing seat 2 by a pressing machine and is limited by a retaining spring so that the fisheye bearing 4 is fixed.
[0033] The fisheye bearing 4 is internally rotatably connected with a rotating end 5, a fixed end 6 is connected inside the rotating end 5, the bottom of the chamfered step 7 is in contact with the top of the rotating end 5, and the top of the chamfered step 7 is provided with an arc chamfer of the same size as the outer diameter of the rotating end 5;
[0034] To sum up: the rotating end 5 can rotate in all directions, and the fixed end 6 is inserted into the interior of the rotating end 5, and the chamfered step 7 is fitted with the rotating end 5. In this way, the chamfered step 7 can play a limiting role, and because the arc chamfer on the outside is consistent with the outer diameter of the rotating end 5, such a setting allows the rotating end 5 to obtain a larger rotation range when rotating, thereby improving the effective range of motion of the control arm.
[0035] The connection mechanism also includes a connection end 8, which is arranged at one end of the fixed end 6 and extends to the outside of the bearing seat 2, and the connection end 8 is used to connect with the car horn;
[0036] To sum up: the connection end 8 is connected to the sheep horn, and a socket for matching with the connection end 8 will be provided on the sheep horn, and the connection end 8 can be inserted into the socket.
[0037] The connection mechanism also includes a locking end 9, which is arranged on a side of the connection end 8 away from the fixed end 6, and the locking end 9 is provided with an external thread structure, and the outer side of the locking end 9 is threadedly connected with a nut 10, and the connection end 8 is fixed to the car horn through the cooperation of the locking end 9 and the nut 10;
[0038] In summary: when the connecting end 8 is inserted into the socket, the locking end 9 will be exposed outside the horn. At this time, it can be locked by the nut 10, so that the entire control arm is connected to the horn.
[0039] The other end of the control arm body 1 is fixedly connected with a mounting position 11 , and a fixing hole 12 is opened on the mounting position 11 . The mounting position 11 is connected to the automobile chassis suspension through the fixing hole 12 .
[0040] In summary: the mounting position 11 is connected to the suspension so that the control arm can be in a stressed state.
[0041] Working principle:
[0042] In actual use, the fisheye bearing 4 is first pressed into the bearing seat 2 by a pressing machine, and the fisheye bearing 4 is fixed by limiting it with a retaining spring. Subsequently, the fixed end 6 is inserted into the interior of the rotating end 5, and the chamfered step 7 is fitted with the rotating end 5. After that, the connecting end 8 is connected to the horn and locked, and finally the mounting position 11 is connected to the suspension. In this way, the installation process is completed. The chamfered step 7 not only plays a limiting role, but also because the outer arc chamfer is consistent with the outer diameter of the rotating end 5, such a setting, when the wheel hub rotates to the extreme angle, the chamfered step 7 can slide into the outer ring of the fisheye bearing 4, so that the rotating end 5 can obtain a larger rotation range when rotating, thereby improving the effective range of motion of the control arm.
[0043] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A suspension control arm for an automobile, comprising a control arm body (1), characterized in that: One end of the control arm body (1) is fixedly connected to a bearing seat (2), a bearing mounting position (3) is arranged inside the bearing seat (2), a step and a retaining ring groove for limiting the bearing are arranged inside the bearing mounting position (3), a fisheye bearing (4) is arranged inside the bearing mounting position (3), and a connecting mechanism is arranged inside the fisheye bearing (4); The connecting mechanism comprises a fixed end (6) and a chamfered step (7), wherein the chamfered step (7) is arranged on the outside of the fixed end (6).
2. A suspension control arm for a vehicle according to claim 1, characterized in that: The fisheye bearing (4) is rotatably connected to a rotating end (5) inside, the fixed end (6) is connected inside the rotating end (5), the bottom of the chamfered step (7) is in contact with the top of the rotating end (5), and the top of the chamfered step (7) is provided with an arc chamfer having the same size as the outer diameter of the rotating end (5).
3. A suspension control arm for a vehicle according to claim 1, characterized in that: The connection mechanism further comprises a connection end (8), wherein the connection end (8) is arranged at one end of the fixed end (6) and extends to the outside of the bearing seat (2), and the connection end (8) is used to be connected to the horn of the car.
4. A suspension control arm for a vehicle according to claim 1, characterized in that: The connection mechanism further comprises a locking end (9), the locking end (9) being arranged on a side of the connection end (8) away from the fixing end (6), the locking end (9) being provided with an external thread structure, the outer side of the locking end (9) being threadedly connected to a nut (10), and the connection end (8) is fixed to the clevis of the vehicle by the cooperation between the locking end (9) and the nut (10).
5. A suspension control arm for a vehicle according to claim 1, characterized in that: The other end of the control arm body (1) is fixedly connected to a mounting position (11), a fixing hole (12) is provided on the mounting position (11), and the mounting position (11) is connected to the automobile chassis suspension via the fixing hole (12).