Novel single-axle rear four-airbag air suspension assembly

Abstract

A novel single-axle rear four-air-bag air suspension assembly comprises balance beams and Y-shaped large supports, the balance beams are arranged in a bilateral symmetry mode, the middle of the outer side of each balance beam is rotationally connected with the bottom of the corresponding large support on the corresponding side through a lower thrust rod, and the middle of the outer side of each balance beam is further rotationally connected with a vertical shock absorber. Vertical air springs are fixed to the two ends of each balance beam respectively, V-shaped push supports are fixed to the inner sides of the tops of the Y-shaped large supports on the two sides respectively, the fixed ends of the V-shaped push supports are of plate-shaped structures, the plate-shaped structures are fixedly connected with the tops of the corresponding large supports, and the inner sides of the plate-shaped structures are of C-shaped arch-shaped structures. The two ends of the V-shaped thrust rod are rotationally connected with the arch structures of the V-shaped thrust supports on the sides correspondingly. By improving the structures of the large support and the balance beam, the universality of the large support and the balance beam is improved, and the adaptability of the air suspension is integrally improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile chassis suspension, in particular to a novel single-bridge rear four-airbag air suspension assembly. Background Art

[0002] In order to improve the comfort of the car while driving, effectively reduce the bumps caused by uneven ground, and better protect the cargo, most vehicle chassis currently use air suspension to minimize the bumps and vibrations during driving, thereby maximizing the overall smoothness and safety of the car and protecting the cargo.

[0003] In recent years, with the further development of my country's transportation and logistics industries, the laws and regulations on the installation of air suspension systems on the rear axles of heavy-duty commercial vehicles have become increasingly sound, and the application of air suspension systems in heavy-duty commercial vehicles has gradually become a development trend.

[0004] However, due to the different frame belly heights and different suspension heights on the market, there are many large and medium-sized castings in the air suspension assembly, which cannot be adjusted according to different suspensions, resulting in weak adaptability of the air suspension. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a novel single-bridge rear four-airbag air suspension assembly.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a new single-bridge rear four-airbag air suspension assembly, including a symmetrically arranged balancing beam and a Y-shaped large bracket, the outer middle part of each balancing beam is rotatably connected to the bottom of the corresponding large bracket on each side through a lower thrust rod, the outer middle part of each balancing beam is also rotatably connected to a vertical shock absorber, and the two ends of each balancing beam are respectively fixed with a vertical air spring, and the inner side of the top of the Y-shaped large bracket on both sides is respectively fixed with a V-push bracket, the fixed end of the V-push bracket is a plate structure, and the plate structure is fixedly connected to the corresponding large bracket top, the inner side of the plate structure is a C-shaped arch structure, and the two ends of the V-shaped thrust rod are respectively rotatably connected to the arch structure of the V-push bracket on each side.

[0007] Furthermore, a horizontal arched stabilizing rod is provided at the bottom of one end of the balancing beam away from the large bracket, and both ends of the stabilizing rod are rotatably connected with vertical stabilizing rod suspension rods.

[0008] Furthermore, a shock absorber bracket is provided at the upper end of the shock absorber on each side, and the shock absorber bracket is a hinge structure.

[0009] Furthermore, an airbag bracket is provided at the top end of each air spring.

[0010] Furthermore, a rubber bushing with a ball pin is provided in the middle portion of the V-shaped thrust rod.

[0011] Furthermore, the middle portion of the balancing beam on each side is respectively configured to be a horizontal plate, and a plurality of vertical mounting bolts are provided on the plate-shaped portion.

[0012] Furthermore, a plurality of mounting holes are respectively provided on the top of each large bracket, and the spacing between the mounting holes of the large bracket is the same as the spacing between the mounting holes of the V-push bracket, and the number of mounting holes of the large bracket is greater than that of the V-push bracket.

[0013] Through the above settings, the outer middle parts of each balancing beam of the utility model are rotatably connected to the bottom of the large bracket corresponding to each side through the lower thrust rod, and the mounting hole at the lower end of the large bracket is designed as an elliptical boss, and the mounting hole is selected for processing according to the different heights of the belly surface of the vehicle frame; the outer middle parts of each balancing beam are also rotatably connected with a vertical shock absorber, and the balancing beam is provided with two shock absorber mounting holes, and the shock absorber position can be selected according to the overall layout of the chassis; vertical air springs are fixed at both ends of each balancing beam, and the utility model cancels the external buffer block and uses the internal buffer block of the air spring as the upper limit, thereby reducing the number of parts assembled and reducing the assembly cost; the utility model improves the versatility of the large bracket and the balancing beam by improving the structure of the large bracket and the balancing beam, and improves the adaptability of the air suspension as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will now be further described with reference to the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the equalizing beam of the utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the large bracket of the utility model. DETAILED DESCRIPTION

[0018] like Figure 1-3 As shown, a new type of single-bridge rear four-airbag air suspension assembly includes a symmetrically arranged balancing beam 4 and a Y-shaped large bracket 1. The outer middle part of each balancing beam 4 is rotatably connected to the bottom of the corresponding large bracket 1 on each side through a lower thrust rod 2. The outer middle part of each balancing beam 4 is also rotatably connected to a vertical shock absorber 3. The two ends of each balancing beam 4 are respectively fixed with a vertical air spring 6. The inner side of the top of the Y-shaped large bracket 1 on both sides is respectively fixed with a V-push bracket 10. The fixed end of the V-push bracket 10 is a plate structure, and the plate structure is fixedly connected to the top of the corresponding large bracket 1. The inner side of the plate structure is a C-shaped arch structure, and the two ends of the V-shaped thrust rod 11 are respectively rotatably connected to the arch structure of the V-push bracket 10 on each side.

[0019] A horizontal arched stabilizer bar 5 is provided at the bottom of one end of the balancing beam 4 away from the large bracket 1, and the two ends of the stabilizer bar 5 are rotatably connected with vertical stabilizer bar hangers 7, and the upper ends of the shock absorbers 3 on each side are respectively provided with shock absorber brackets 9, and the shock absorber brackets 9 are hinged structures. The top of each air spring 6 is respectively provided with an airbag bracket 8, and the middle part of the V-shaped thrust rod 11 is provided with a rubber bushing with a ball pin. The middle part of the balancing beam 4 on each side is respectively set into a horizontal plate shape, and a plurality of vertical mounting bolts are provided on the plate-shaped part. A plurality of mounting holes are respectively provided on the top of the large bracket 1 on each side, and the spacing between the mounting holes of the large bracket 1 is the same as the spacing between the mounting holes of the V-push bracket 10. The number of mounting holes of the large bracket 1 is greater than that of the V-push bracket 10.

[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 those 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 novel single-bridge rear four-airbag air suspension assembly, comprising a symmetrically arranged equalizing beam (4) and a Y-shaped large bracket (1), characterized in that: The outer middle portion of each balancing beam (4) is rotatably connected to the bottom of the corresponding large bracket (1) on each side through a lower thrust rod (2). The outer middle portion of each balancing beam (4) is also rotatably connected to a vertical shock absorber (3). The two ends of each balancing beam (4) are respectively fixed with a vertical air spring (6). The inner side of the top of the Y-shaped large bracket (1) on both sides is respectively fixed with a V-push bracket (10). The fixed end of the V-push bracket (10) is a plate-like structure, and the plate-like structure is fixedly connected to the top of the corresponding large bracket (1). The inner side of the plate-like structure is a C-shaped arch structure, and the two ends of the V-type thrust rod (11) are respectively rotatably connected to the arch structure of the V-push bracket (10) on each side.

2. The novel single-bridge rear four-airbag air suspension assembly according to claim 1, characterized in that: A horizontal arched stabilizing rod (5) is provided at the bottom of one end of the balancing beam (4) away from the large bracket (1), and both ends of the stabilizing rod (5) are rotatably connected to vertical stabilizing rod suspension rods (7).

3. The novel single-bridge rear four-airbag air suspension assembly according to claim 1, characterized in that: A shock absorber bracket (9) is provided at the upper end of each side shock absorber (3), and the shock absorber bracket (9) is a hinge structure.

4. The novel single-bridge rear four-airbag air suspension assembly according to claim 1, characterized in that: An airbag bracket (8) is provided at the top end of each air spring (6).

5. The novel single-bridge rear four-airbag air suspension assembly according to claim 1, characterized in that: The middle part of the V-shaped thrust rod (11) is provided with a rubber bushing with a ball pin.

6. The novel single-bridge rear four-airbag air suspension assembly according to claim 1, characterized in that: The middle portion of the equalizing beam (4) on each side is respectively configured to be in the shape of a horizontal plate, and a plurality of vertical mounting bolts are provided on the plate-shaped portion.

7. The novel single-bridge rear four-airbag air suspension assembly according to claim 1, characterized in that: A plurality of mounting holes are respectively provided on the top of each side large bracket (1), and the spacing between the mounting holes of the large bracket (1) is the same as the spacing between the mounting holes of the V-push bracket (10), and the number of mounting holes of the large bracket (1) is greater than that of the V-push bracket (10).

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