Front axle guide arm type air suspension assembly
By adopting the front axle guide arm type air suspension assembly in the front axle air suspension, the variable cross-section design of the guide arm and the rotating connection of the thrust rod assembly are solved, and the effect of effectively preventing the body roll is achieved.
Patent Information
- Application Number
- CN202420957189.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-06
AI Technical Summary
In the front axle air suspension arrangement, the stabilizing rod is complicated due to space limitations, and is costly and heavy, making it difficult to effectively prevent the body from rolling.
The front axle guide arm type air suspension assembly is adopted, including a symmetrically arranged guide arm assembly and shock absorber. The guide arm is rotatably connected by a thrust rod assembly. The guide arm adopts a variable cross-sectional design to increase roll stiffness, and reduce the stress through the guide arm bracket and bushing to provide anti-roll stiffness.
It effectively reduces the weight of the front axle, improves the anti-roll stiffness of the guide arm, prevents body roll, and reduces the stress on the guide arm bushing under body roll through an optimized design.
Smart Images
Figure CN222663107U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile chassis suspension, in particular to a front axle guide arm type air suspension assembly. Background Art
[0002] Due to the many advantages of air suspension, front axle guide arm air suspension is increasingly used in the chassis of light and medium trucks. The main components of guide arm air suspension on the market are air springs, shock absorbers, guide arm assemblies, stabilizer bars, thrust rods, brackets, etc. The main function of the stabilizer bar is to prevent the body from rolling and keep the body balanced. The two ends of the stabilizer bar are fixed on the left and right suspensions respectively. When the car turns, the outer suspension will press against the stabilizer bar, and the stabilizer bar will bend. The elastic force generated by the deformation can prevent the wheels from lifting, so that the body can be kept as balanced as possible.
[0003] The stabilizer bar plays a key role in vehicle roll. However, in the front axle air suspension layout, the stabilizer bar has limited space and many factors need to be considered when arranging it. In addition, the cost and weight of the stabilizer bar in the assembly also account for a large proportion. Utility Model Content
[0004] In order to solve the above problems, the purpose of the utility model is to provide a front axle guide arm type air suspension assembly.
[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a front axle guide arm type air suspension assembly, including symmetrically arranged guide arm assemblies and shock absorbers, each shock absorber is rotatably connected to one end of the corresponding guide arm assembly, the guide arm assemblies are rotatably connected through a thrust rod assembly, air springs are respectively arranged on the guide arm assemblies at both ends of the thrust rod assembly, and the thickness of the two ends of each guide arm assembly is relatively small.
[0006] Furthermore, the other end of each guide arm assembly is rotatably connected to a guide arm bracket, which is a square tubular structure with an opening on one side of the lower end. The opening is sleeved on the end of the guide arm assembly, and a fixed rotating shaft that passes through the guide arm assembly is provided at the bottom of the guide arm bracket.
[0007] Furthermore, a fixed rotating shaft passes through the outside of the guide arm assembly and is sleeved with a guide arm bushing, and both ends of the guide arm bushing are penetrated by anti-wear pads located at the inner side wall of the guide arm bracket.
[0008] Furthermore, each shock absorber is rotatably connected to one end of the corresponding guide arm assembly through a lower shock absorber bracket.
[0009] Furthermore, both ends of the thrust rod assembly are rotatably connected to the guide arm assemblies at each end through thrust rod supports.
[0010] Furthermore, the upper end of each shock absorber is rotatably connected to a shock absorber upper bracket.
[0011] Furthermore, an air spring upper bracket is respectively provided at the upper end of each air spring.
[0012] Furthermore, buffer blocks are provided on the outer sides of the thrust rod supports on both sides.
[0013] Through the above arrangement, the utility model can effectively reduce the weight of the front axle, the guide arm assemblies are rotatably connected by the thrust rod assembly, and the thickness of both ends of each guide arm assembly is relatively small, that is, the guide arm assembly adopts a variable cross-section design, and the guide arm stiffness is greater than the anti-roll stiffness required by the suspension assembly, which not only provides guiding and supporting functions, but also provides roll stiffness, effectively preventing the body from tilting; in addition, the other end of each guide arm assembly is rotatably connected to a guide arm bracket, the guide arm bracket is a square tubular structure, and a fixed rotating shaft passing through the guide arm assembly is arranged at the bottom of the guide arm bracket, and a guide arm bushing is sleeved on the outside of the fixed rotating shaft passing through the guide arm assembly, and anti-wear pads located at the inner side wall of the guide arm bracket are respectively penetrated at both ends of the guide arm bushing, which can reduce the force on the guide arm bushing under the tilt of the body, and provide anti-roll stiffness together with the guide arm. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is now further described with reference to the accompanying drawings.
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the guide arm bracket of the utility model. DETAILED DESCRIPTION
[0017] like Figure 1-2 As shown, a front axle guide arm type air suspension assembly includes a symmetrically arranged guide arm assembly 1 and a shock absorber 2, each shock absorber 2 is rotatably connected to one end of the corresponding guide arm assembly 1, and the guide arm assemblies 1 are rotatably connected through a thrust rod assembly 3. Air springs 4 are respectively arranged on the guide arm assemblies 1 at both ends of the thrust rod assembly 3, and the thickness of both ends of each guide arm assembly 1 is relatively small, that is, the guide arm assembly adopts a variable cross-section design, and the guide arm stiffness is greater than the anti-roll stiffness required by the suspension assembly, which not only provides guidance and support, but also has the function of providing roll stiffness, thereby effectively preventing the body from rolling.
[0018] The other end of each guide arm assembly 1 is rotatably connected to a guide arm bracket 5. The guide arm bracket 5 is a square tubular structure with an opening on one side of the lower end. The opening is sleeved on the end of the guide arm assembly 1. A fixed rotating shaft 6 penetrating the guide arm assembly 1 is arranged at the bottom of the guide arm bracket 5. The fixed rotating shaft 6 penetrates the outside of the guide arm assembly 1 and is sleeved with a guide arm bushing 7. Anti-wear pads 8 located on the inner side wall of the guide arm bracket 5 are respectively penetrated at both ends of the guide arm bushing 7, which can reduce the force on the guide arm bushing under the roll of the vehicle body and provide anti-roll stiffness together with the guide arm.
[0019] Each shock absorber 2 is rotatably connected to one end of the corresponding guide arm assembly 1 through the shock absorber lower bracket 9, and the two ends of the thrust rod assembly 3 are rotatably connected to the guide arm assembly 1 at each end through the thrust rod support 10. The upper end of each shock absorber 2 is also rotatably connected to the shock absorber upper bracket 11, and the upper end of each air spring 4 is respectively provided with an air spring upper bracket 12, and buffer blocks 13 are provided on the outer sides of the thrust rod supports 10 on both sides.
[0020] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.
Claims
1. A front axle guide arm type air suspension assembly, comprising a guide arm assembly (1) and a shock absorber (2) symmetrically arranged, characterized in that: Each shock absorber (2) is rotatably connected to one end of a corresponding guide arm assembly (1), and the guide arm assemblies (1) are rotatably connected to each other via a thrust rod assembly (3). Air springs (4) are respectively provided on the guide arm assemblies (1) at both ends of the thrust rod assembly (3), and the thickness of both ends of each guide arm assembly (1) is relatively small.
2. A front axle guide arm type air suspension assembly as claimed in claim 1, characterized in that: The other end of each guide arm assembly (1) is rotatably connected to a guide arm bracket (5), the guide arm bracket (5) being a square tubular structure with an opening on one side of the lower end, the opening being sleeved on the end of the guide arm assembly (1), and a fixed rotating shaft (6) penetrating the guide arm assembly (1) being provided at the bottom of the guide arm bracket (5).
3. A front axle guide arm type air suspension assembly as claimed in claim 2, characterized in that: The fixed rotating shaft (6) passes through the outside of the guide arm assembly (1) and is covered with a guide arm bushing (7). Both ends of the guide arm bushing (7) are respectively penetrated by anti-wear pads (8) located on the inner side wall of the guide arm bracket (5).
4. The front axle guide arm type air suspension assembly according to claim 1, characterized in that: Each shock absorber (2) is rotatably connected to one end of a corresponding guide arm assembly (1) via a shock absorber lower bracket (9).
5. The front axle guide arm type air suspension assembly according to claim 1, characterized in that: Both ends of the thrust rod assembly (3) are rotatably connected to the guide arm assemblies (1) at each end through thrust rod supports (10).
6. The front axle guide arm air suspension assembly according to claim 1, characterized in that: The upper end of each shock absorber (2) is also rotatably connected to a shock absorber upper bracket (11).
7. The front axle guide arm air suspension assembly according to claim 1, characterized in that: An air spring upper bracket (12) is provided at the upper end of each air spring (4).
8. The front axle guide arm type air suspension assembly according to claim 5, characterized in that: Buffer blocks (13) are provided on the outer sides of the thrust rod supports (10) on both sides.