Automobile suspension lower control arm assembly and vehicle

Abstract

The utility model discloses an automotive suspension lower control arm assembly and a vehicle, the automotive suspension lower control arm assembly comprises a lower control arm body, the lower control arm body is provided with a press-fitting bushing, the middle part of the lower control arm body is fixedly connected with a mounting plate, the mounting plate is connected with a bolt, one end of the bolt is in threaded connection with a nut, and the other end of the bolt is in threaded connection with the press-fitting bushing. According to the lower control arm assembly of the automobile suspension, the installation convenience of a shock absorber is improved, and the friction abnormal sound between the lining and an automobile frame is optimized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile suspension system, specifically, the utility model relates to a kind of automobile suspension lower control arm assembly and vehicle. BACKGROUND

[0002] At present, the inside front and rear bushing of automobile suspension lower control arm is connected with frame, often due to frame opening size, installation surface flatness out-of-tolerance and other parts manufacturing problems, in the process of lower control arm and frame up and down movement, friction noise is prone to occur, and the existing automobile suspension lower control arm assembly and shock absorber installation convenience is poor, and shock absorber arrangement space is insufficient.

[0003] The utility model patent with disclosure number CN207579480U discloses a kind of automobile front suspension lower control arm on July 6, 2018, and the name is a kind of automobile front suspension lower control arm, including control arm body, ball head pin installation part for connecting ball head pin is equipped in one end of control arm body, front bushing installation part for installing front bushing is equipped in one side of the middle outside of control arm body, relative to ball head pin installation part, rear bushing installation part for installing rear bushing is equipped in the other end of control arm body, rear bushing installation part can keep the axial direction of rear bushing towards vehicle height direction setting, and the connecting line between the hard point of front bushing and the hard point of rear bushing is the axis of front bushing.The automobile front suspension lower control arm cannot solve the above-mentioned technical problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at the deficiency of prior art, provide a kind of automobile suspension lower control arm assembly of improving shock absorber installation convenience, optimizing the friction noise of bushing and frame.

[0005] In order to realize the above-mentioned purpose, the technical scheme that the utility model adopts is as follows:

[0006] The automobile suspension lower control arm assembly, including lower control arm body, the lower control arm body is equipped with press-fit bushing, the lower control arm body middle part is fixedly connected with mounting plate, the mounting plate is connected with bolt, one end of the bolt is threadedly connected with nut, one side of the mounting plate is equipped with anti-following rotation support.

[0007] The anti-following rotation support is fixedly connected in one side of mounting plate, the anti-following rotation support is equipped with opening, and the side portion of the nut is abutted with the opening.

[0008] The end surface of the press-fit bushing is equipped with protrusion.

[0009] The lower control arm body middle part is equipped with recessed part, and the mounting plate is located above the recessed part.

[0010] The opening end direction of the opening is vertically upwards.

[0011] One end of the lower control arm body is provided with a press-fit ball pin.

[0012] The protrusions are evenly distributed circumferentially to form a sawtooth structure.

[0013] The vehicle, including the aforementioned lower control arm assembly of the vehicle suspension.

[0014] The technical effects of this utility model are as follows: The lower control arm assembly of the automotive suspension of this utility model is equipped with a mounting plate, an anti-spin bracket, and a recessed part, which increases the space for shock absorber arrangement, ensures the shock absorber connection is firm, improves the assembly convenience of the suspension system, reduces labor and time costs, and is conducive to improving the overall vehicle performance; by designing a ring-shaped distributed protrusion structure on the mounting end face of the press-fit bushing, the problem of friction noise that easily occurs at the front and rear bushings when the lower control arm moves relative to the frame is solved, improving the user's driving experience. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following:

[0016] Figure 1 This is a structural schematic diagram of the lower control arm assembly of the automotive suspension according to this utility model;

[0017] Figure 2 This is a schematic diagram of the press-fit bushing of this utility model.

[0018] The markings in the diagram are: 1. Lower control arm body; 2. Mounting plate; 3. Press-fit ball pin; 4. Press-fit bushing; 5. Bolt; 6. Nut; 7. Anti-rotation bracket; 8. Protrusion; 9. Recess; 10. Opening. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0020] like Figure 1 and Figure 2As shown, the lower control arm assembly of the automotive suspension includes a lower control arm body 1, a press-fit bushing 4 on the lower control arm body 1, a mounting plate 2 fixedly connected to the middle of the lower control arm body 1, a bolt 5 connected to the mounting plate 2, a nut 6 threadedly connected to one end of the bolt 5, and an anti-spin bracket 7 on one side of the mounting plate 2. The lower control arm body 1 has a triangular structure, one end of which is connected to the steering knuckle via a press-fit ball joint 3, and the other two ends are connected to the vehicle frame via press-fit bushings 4. The top of the lower control arm body 1 is connected to the shock absorber via a welded mounting plate 2. There are two mounting plates 2, which provide a horizontal mounting position for the bolt 5. After the bolt 5 passes through the two mounting plates 2, the connection process of the shock absorber is facilitated. The nut 6 tightens the bolt 5 to fix its position. The anti-spin bracket 7 is used to limit the rotation of the nut 6 to avoid affecting the tightening posture of the nut 6 and ensure the connection reliability of the shock absorber.

[0021] like Figure 1 As shown, the anti-rotation bracket 7 is fixedly connected to one side of the mounting plate 2. The anti-rotation bracket 7 has an opening 10, and the side of the nut 6 abuts against the opening 10. Adding the anti-rotation bracket 7 at the connection between the lower control arm and the shock absorber reduces the installation and operating space required for fastening tools or parts, improving installation convenience. The opening 10 acts as abutment and restriction on the nut 6, preventing it from rotating and ensuring a tight fit between the bolt 5 and the nut 6, thus ensuring reliable connection performance between the lower control arm and the shock absorber.

[0022] like Figure 2 As shown, the end face of the press-fit bushing 4 is provided with a protrusion 8. By designing the protrusion 8 on the end face of the press-fit bushing 4 that contacts the frame, the roughness of the contact surface is improved, the friction noise when the press-fit bushing 4 is pressed against the metal surface of the frame and moves relative to it is reduced, and the ride comfort is improved.

[0023] like Figure 1 As shown, the lower control arm body 1 has a recessed portion 9 in the middle, and the mounting plate 2 is located above the recessed portion 9. The inwardly recessed structure in the middle of the lower control arm body 1 increases the space for the shock absorber, improves installation convenience, and enhances the overall vehicle performance. At the same time, the bottom of the mounting plate 2 has an arc-shaped structure, which can form a reliable contact with the recessed portion 9, ensuring that the two are firmly welded together.

[0024] like Figure 1 As shown, the opening 10 of the opening 10 is oriented vertically upwards. Designing the opening 10 of the opening 10 to be vertical will not obstruct the top-to-bottom installation process of the nut 6, and at the same time, it will not obstruct the view of the mating process of the bolt 5 and the nut 6, thus improving convenience.

[0025] like Figure 1 As shown, one end of the lower control arm body 1 is provided with a press-fit ball pin 3. The press-fit ball pin 3 is used to connect with the steering knuckle.

[0026] likeFigure 2 As shown, the protrusions 8 are evenly distributed circumferentially to form a sawtooth structure. The distribution of multiple protrusions 8 forms a sawtooth structure, and there is a certain distance between adjacent protrusions 8, which can further optimize friction noise.

[0027] The vehicle includes the aforementioned lower control arm assembly for automotive suspension. Automotive suspensions equipped with this lower control arm assembly can effectively improve friction noise issues, enhance ride comfort, increase user satisfaction and vehicle quality. Simultaneously, the lower control arm can better fulfill its connecting and supporting functions, ensuring good handling performance during vehicle operation, maintaining the suspension system's optimal condition, and helping to reduce power loss during transmission.

[0028] The lower control arm assembly of this automotive suspension features a mounting plate 2, an anti-spin bracket 7, and a recessed portion 9. This increases the space for shock absorber placement, ensures a secure connection of the shock absorbers, improves the ease of suspension system assembly, reduces labor and time costs, and helps improve overall vehicle performance. By designing a ring-shaped distribution of protrusions 8 on the mounting end face of the press-fit bushing 4, the problem of frictional noise easily occurring at the front and rear bushings when the lower control arm moves relative to the vehicle frame is solved, improving the user's driving experience.

[0029] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A lower control arm assembly for an automotive suspension, characterized in that: Includes a lower control arm body (1), on which a press-fit bushing (4) is provided, and a mounting plate (2) is fixedly connected to the middle of the lower control arm body (1), and a bolt (5) is connected to the mounting plate (2), with a nut (6) threaded to one end of the bolt (5), and an anti-rotation bracket (7) is provided on one side of the mounting plate (2).

2. The lower control arm assembly of the automotive suspension according to claim 1, characterized in that: The anti-rotation bracket (7) is fixedly connected to one side of the mounting plate (2). The anti-rotation bracket (7) has an opening (10), and the side of the nut (6) abuts against the opening (10).

3. The lower control arm assembly of the automotive suspension according to claim 2, characterized in that: The end face of the press-fit bushing (4) is provided with a protrusion (8).

4. The lower control arm assembly of the automotive suspension according to claim 3, characterized in that: The lower control arm body (1) has a recessed portion (9) in the middle, and the mounting plate (2) is located above the recessed portion (9).

5. The lower control arm assembly of the automotive suspension according to claim 2, characterized in that: The opening (10) is vertically upward at the opening end.

6. The lower control arm assembly of an automotive suspension according to any one of claims 1-5, characterized in that: The lower control arm body (1) is provided with a press-fit ball pin (3) at one end.

7. The lower control arm assembly of the automotive suspension according to claim 3, characterized in that: The protrusions (8) are evenly distributed circumferentially to form a sawtooth structure.

8. A vehicle, characterized in that: Includes the lower control arm assembly of the vehicle suspension as described in any one of claims 1-7.

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