Supporting arm for air independent suspension of passenger car

Abstract

The utility model relates to the technical field of supporting arms, and discloses a supporting arm for an air independent suspension of a passenger car, which comprises a supporting arm, the supporting arm comprises an upper supporting arm and a lower supporting arm, the upper supporting arm is arranged at the upper end of the lower supporting arm in a sliding manner, a plurality of shock absorbers I are connected between the upper supporting arm and the lower supporting arm, and an air spring is connected above the upper supporting arm. A second shock absorber is connected to one side of the upper supporting arm, upper connecting arms are symmetrically and rotationally connected to the positions, close to the upper end, of the two sides of the upper supporting arm, lower connecting arms are symmetrically and rotationally connected to the positions, close to the lower end, of the two sides of the lower supporting arm, a shaft pipe is connected to the rear side of the lower supporting arm, and a mounting base for fixing a motor reducer assembly is connected to the front side of the lower supporting arm. The supporting arm has the advantages that the supporting arm has shock resistance, the safety performance is high, and the shock absorption capacity of the whole device is better.

Description

Technical Field

[0001] The utility model relates to the technical field of support arms, in particular to a support arm for an air independent suspension of a bus. Background Technique

[0002] The support arm in the air independent suspension of a bus is a key component connecting and supporting the suspension system, responsible for bearing and transmitting the force of the air spring, connecting the suspension and the wheel at the same time, adjusting the geometric characteristics of the suspension, ensuring stable suspension movement of the vehicle on uneven roads, and improving ride comfort and handling performance.

[0003] At present, although the support arm in the air independent suspension of a bus performs well in force transmission and bearing, it has some defects itself. The main problem is that the support arm lacks sufficient shock absorption measures, which makes the support arm likely to be subjected to excessive vibration and impact during long-term use, resulting in the risk of deformation or even damage. This situation will not only affect the normal operation of the suspension system, but also endanger the safety of the people sitting in the vehicle. Content of the Utility Model

[0004] In order to solve the above various problems, the utility model proposes a support arm for an air independent suspension of a bus, which has earthquake resistance ability, high safety performance, and better shock absorption ability of the whole device.

[0005] In order to solve the above technical problems, the technical solution proposed by the utility model is: a support arm for an air independent suspension of a bus, including a support arm, the support arm includes an upper support arm and a lower support arm, the upper support arm is slidably arranged at the upper end of the lower support arm, a plurality of shock absorbers I are connected between the upper support arm and the lower support arm, an air spring is connected above the upper support arm, a shock absorber II is connected to one side of the upper support arm, upper connecting arms are symmetrically and rotatably connected to both sides of the upper support arm near the upper end, lower connecting arms are symmetrically and rotatably connected to both sides of the lower support arm near the lower end, a shaft tube is connected to the rear side of the lower support arm, and a mounting seat for fixing the motor reducer assembly is connected to the front side of the lower support arm.

[0006] Furthermore, a limiting plate is connected to the upper end of the lower support arm, and the upper support arm is slidably sleeved on the limiting plate.

[0007] Based on the above characteristics, the lower support arm is slidably arranged on the limiting plate, which can ensure its stability during vibration and avoid deformation or damage caused by the deviation of the support arm.

[0008] Furthermore, the shock absorbers I are evenly spaced at the edge of the upper end of the lower support arm.

[0009] Based on the above features, it can ensure good shock absorption effect between the upper support arm and the lower support arm, and further ensure the stability of the support arm itself.

[0010] Further, the lower end of the second shock absorber is connected to the upper support arm through a shock absorber spacer sleeve.

[0011] Based on the above features, the shock absorber spacer sleeve can not only stably connect the second shock absorber with the upper support arm, but also protect the connection part, improving the firmness of the support arm.

[0012] Further, the upper connecting arm and the lower connecting arm are respectively connected to the upper support arm and the lower support arm through bearings.

[0013] Based on the above features, the bearings can not only stably fix the connecting arm and the lower connecting arm, but also enable them to rotate stably, which is flexible and practical.

[0014] Further, the extending ends of the upper connecting arm and the lower connecting arm are provided with connecting rings, and rubber pads are connected to the inner sides of the connecting rings.

[0015] Based on the above features, setting rubber pads inside the connecting rings can reduce vibration and noise during the use of the support arm, with high comfort.

[0016] Further, the mounting seat is provided with a plurality of mounting holes, and a through hole for the transmission of the rotating shaft is provided in the middle of the mounting seat, and the through hole is aligned with the shaft tube.

[0017] Based on the above features, the through hole and the shaft tube facilitate the limitation and protection of the rotating shaft.

[0018] The advantages of the present utility model compared with the prior art are as follows: The upper support arm is installed at the upper end of the lower support arm through a sliding device, and they are connected by a plurality of first shock absorbers. These first shock absorbers help to reduce the vibration and impact of the support arm itself during vehicle driving, can effectively increase the shock absorption effect of the support arm, improve the safety of the vehicle. The second shock absorber is installed on the side of the upper support arm, and can cooperate with the air spring to play a shock absorption role at the connection between the vehicle frame and the support arm, further improving the shock absorption effect of the suspension and increasing the smoothness and comfort of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the present utility model;

[0020] Figure 2 is a front view of the present utility model;

[0021] Figure 3 is a side view of the present utility model;

[0022] Figure 4 is a top view of the present utility model.

[0023] As shown in the figure: 1. Upper support arm; 2. Lower support arm; 3. Shock absorber I; 4. Air spring; 5. Shock absorber II; 6. Upper connecting arm; 7. Lower connecting arm; 8. Axle tube; 9. Mounting seat; 10. Limiting plate; 11. Shock absorber spacer; 12. Connecting ring; 13. Rubber pad; 14. Mounting hole; 15. Through hole. Detailed implementation mode

[0024] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0025] Combined with the attached Figure 1 and the attached Figure 3 , a support arm for an independent air suspension of a bus includes a support arm. The support arm includes an upper support arm 1 and a lower support arm 2. The upper support arm 1 is slidably arranged at the upper end of the lower support arm 2. A limiting plate 10 is connected to the upper end of the lower support arm 2. The upper support arm 1 is slidably sleeved on the limiting plate 10, and the lower support arm 2 is slidably arranged on the limiting plate 10, which can ensure its stability during vibration and prevent the support arm from shifting, deforming or being damaged.

[0026] Combined with the attached Figure 2 and the attached Figure 3 , a number of shock absorbers I 3 are connected between the upper support arm 1 and the lower support arm 2. The shock absorbers I 3 are evenly spaced at the upper end edge of the lower support arm 2, which can ensure good shock absorption effect between the upper support arm 1 and the lower support arm 2, and further ensure the stability of the support arm itself.

[0027] Combined with the attached Figure 1 and the attached Figure 2 and the attached Figure 3 , an air spring 4 is connected above the upper support arm 1. A shock absorber II 5 is connected to one side of the upper support arm 1. The lower end of the shock absorber II 5 is connected to the upper support arm 1 through a shock absorber spacer 11. The shock absorber spacer 11 can not only stably connect the shock absorber II 5 and the upper support arm 1, but also protect the connection part and improve the firmness of the support arm.

[0028] Combined with the attached Figure 1 and the attached Figure 4 , upper connecting arms 6 are symmetrically and rotatably connected to both sides of the upper support arm 1 near the upper end, and lower connecting arms 7 are symmetrically and rotatably connected to both sides of the lower support arm 2 near the lower end. The upper connecting arms 6 and the lower connecting arms 7 are connected to the upper support arm 1 and the lower support arm 2 through bearings respectively. The bearings can not only stably fix the upper connecting arms 6 and the lower connecting arms 7, but also enable them to rotate stably, which is flexible and practical. Connecting rings 12 are provided at the extending ends of the upper connecting arms 6 and the lower connecting arms 7. Rubber pads 13 are connected to the inner sides of the connecting rings 12. The rubber pads 13 arranged in the connecting rings 12 can reduce vibration and noise during the use of the support arm, and the comfort level is high.

[0029] Combined with the attachedFigure 1 , attached Figure 2 , a shaft tube 8 is connected and provided at the rear side of the lower support arm 2, and a mounting seat 9 for fixing the motor reducer assembly is connected and provided at the front side of the lower support arm 2. A plurality of mounting holes 14 are provided on the mounting seat 9, and a through hole 15 for transmitting a rotating shaft is provided in the middle of the mounting seat 9. The through hole 15 is aligned with the shaft tube 8, and the through hole 15 and the shaft tube 8 facilitate the limiting and protection of the rotating shaft.

[0030] Specific embodiments of the present invention: Connect the upper end of the air spring 4 and the upper end of the shock absorber II 5 to the vehicle frame, connect each connecting ring 12 to the corresponding structure of the vehicle frame, and pass the vehicle drive shaft through the through hole 15 and the shaft tube 8, then the installation of the support arm can be realized. During the driving of the vehicle, the upper connecting arm 6 and the lower connecting arm 7 can rotate on the upper support arm 1 and the lower support arm 2 to meet the driving needs of the vehicle. The upper support arm 1 slides on the limit plate 10 under vibration, and the cooperation with the shock absorber I 3 can realize the shock absorption of the vehicle. At the same time, the shock absorber II 5 can perform shock absorption at the connection between the vehicle frame and the support arm, further increasing the stability of the vehicle.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; for those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood according to specific situations.

[0032] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative work without departing from the creative purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A support arm for a passenger car air independent suspension, comprising a support arm, characterized in that: The support arm comprises an upper support arm (1) and a lower support arm (2), wherein the upper support arm (1) is slidably arranged at the upper end of the lower support arm (2), a plurality of shock absorbers (3) are connected between the upper support arm (1) and the lower support arm (2), an air spring (4) is connected above the upper support arm (1), a shock absorber (5) is connected to one side of the upper support arm (1), upper connecting arms (6) are symmetrically rotatably connected to the upper end of the upper support arm (1) on both sides, lower connecting arms (7) are symmetrically rotatably connected to the lower end of the lower support arm (2) on both sides, an axle tube (8) is connected to the rear side of the lower support arm (2), and a mounting seat (9) for fixing the motor reducer assembly is connected to the front side of the lower support arm (2).

2. The support arm for a passenger car air independent suspension according to claim 1, characterized in that: The upper end of the lower support arm (2) is connected to a limit plate (10), and the upper support arm (1) is slidably sleeved on the limit plate (10).

3. The support arm for a passenger car air independent suspension according to claim 1, characterized in that: The shock absorbers (3) are evenly spaced and arranged at the upper edge of the lower support arm (2).

4. The support arm for a passenger car air independent suspension according to claim 1, characterized in that: The lower end of the second shock absorber (5) is connected to the upper support arm (1) via a shock absorber spacer (11).

5. The support arm for a passenger car air independent suspension according to claim 1, characterized in that: The upper connecting arm (6) and the lower connecting arm (7) are respectively connected to the upper supporting arm (1) and the lower supporting arm (2) via bearings.

6. The support arm for a passenger car air independent suspension according to claim 1, characterized in that: The extended ends of the upper connecting arm (6) and the lower connecting arm (7) are provided with connecting rings (12), and the inner side of the connecting ring (12) is connected with a rubber pad (13).

7. The support arm for a passenger car air independent suspension according to claim 1, characterized in that: The mounting seat (9) is provided with a plurality of mounting holes (14), and a through hole (15) for transmission of the rotating shaft is provided in the middle of the mounting seat (9), and the through hole (15) is aligned with the shaft tube (8).

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