CN211892756U

CN211892756U - Light-duty four-bar linkage structure air suspension system

Info

Publication number: CN211892756U
Application number: CN201922317917.5U
Authority: CN
Inventors: 谢景山; 刘庆武; 钟炳林; 夏洪波
Original assignee: Shanghai Wman Automotive Systems Co ltd
Current assignee: Shanghai Wman Automotive Systems Co ltd
Priority date: 2019-12-22
Filing date: 2019-12-22
Publication date: 2020-11-10
Anticipated expiration: 2029-12-22

Abstract

The utility model relates to the technical field of air suspension system, in particular to a light four-bar linkage air suspension system, which solves the defects of complex mechanism and large suspension mass in the prior art, comprises a vehicle frame, a drive axle, a left axle upper cover plate and a right axle upper cover plate fixedly connected with the drive axle, and a left axle lower cover plate and a right axle lower cover plate fixedly connected with the drive axle, wherein the left axle upper cover plate, the right axle upper cover plate, the left axle lower cover plate and the right axle lower cover plate are fixedly connected with the drive axle through nut bolts, the air suspension removes the use of an equalizing beam on the basis of the original structure, reduces the total mass of the suspension by 80 kilograms, provides a larger space for the arrangement of the whole vehicle, effectively reduces the weight of the whole suspension system, simultaneously considers the guiding and anti-heeling effects of the suspension system, reduces the part assembly, simplifies the structure of the suspension system, the cost is reduced, and the aim of light weight of the whole vehicle is fulfilled.

Description

Light-duty four-bar linkage structure air suspension system

Technical Field

The utility model relates to an air suspension system technical field especially relates to a light-duty four-bar linkage structure air suspension system.

Background

A high-quality SUV must possess the travelling comfort of car, must compromise the trafficability characteristic of cross country vehicle again, and air suspension system is the best choice that realizes this target, and according to the difference of road conditions and distance sensor's signal, the driving computer can judge the automobile body height and change, and the air compressor of controlling again and exhaust valve make the automatic compression of spring or extension to reduce or rise chassis ground clearance, with the trafficability characteristic of increase high-speed automobile body stability or complicated road conditions.

The existing domestic air suspension system is complex in mechanism, the arrangement space of the whole vehicle is limited, and the mass of the rear air suspension is large, so that the unsprung mass is large, and the development trend of light weight of the whole vehicle cannot be adapted.

Disclosure of Invention

The utility model aims at solving the defects of complex mechanism and large suspension quality in the prior art and providing a light four-bar linkage structure air suspension system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a light-duty four-bar linkage structure air suspension system comprises a vehicle frame, a drive axle, a left axle upper cover plate and a right axle upper cover plate fixedly connected with the drive axle, and a left axle lower cover plate and a right axle lower cover plate fixedly connected with the drive axle, wherein the left axle upper cover plate, the right axle upper cover plate, the left axle lower cover plate and the right axle lower cover plate are fixedly connected with the drive axle through nut bolts, and the drive axle is also fixedly connected with a left stabilizer bar connecting seat and a right stabilizer bar connecting seat through nut bolts;

the top of the drive axle is hinged with a V-shaped base plate assembly through a fastener, one side of the V-shaped base plate assembly is respectively hinged with an upper left thrust rod assembly and an upper right thrust rod assembly through a spherical hinge and the fastener, and the other ends of the upper left thrust rod assembly and the upper right thrust rod assembly are hinged with the frame through the spherical hinge and the fastener;

the top parts of the left axle upper cover plate and the right axle upper cover plate are respectively and fixedly provided with a left air bag assembly and a right air bag assembly, the upper ends of the left air bag assembly and the right air bag assembly are fixedly connected with the frame, one sides of the left axle lower cover plate and the right axle lower cover plate are respectively hinged with a left shock absorber assembly and a right shock absorber assembly, the upper ends of the left shock absorber assembly and the right shock absorber assembly are respectively and fixedly connected with the frame, one sides of the bottoms of the left axle lower cover plate and the right axle lower cover plate are respectively hinged with a left lower thrust rod assembly and a right lower thrust rod assembly through a spherical hinge and a fastener, and the other ends of the left lower thrust rod assembly and the right lower thrust rod assembly are respectively hinged with the frame through a spherical hinge and a fastener;

one side of the left stabilizer bar connecting seat and one side of the right stabilizer bar connecting seat are hinged with stabilizer bar assemblies through spherical hinges and fasteners, the outer sides of the stabilizer bar assemblies are respectively connected with a left suspender system assembly and a right suspender system assembly, and the other ends of the left suspender system assembly and the right suspender system assembly are fixedly connected with the frame.

Preferably, the stabilizer bar assembly is a U-shaped rod-like structure, and the left boom system assembly and the right boom system assembly are symmetrically arranged on the stabilizer bar assembly.

Preferably, the left and right upper bridge cover plates, the left and right lower bridge cover plates, the left and right airbag assemblies, the left and right shock absorber assemblies, the left and right lower push rod assemblies, the left and right upper push rod assemblies, the left and right stabilizer bar connecting seats, and the left and right hanger rod system assemblies are identical in structure.

The utility model has the advantages that: compared with the prior art, the utility model discloses got rid of the use of equalizing beam on original structural basis, the suspension gross mass reduces 80 kilograms, arranges for whole car and provides bigger space, and whole suspension system weight obtains reducing effectively, compromises suspension system direction simultaneously and anti effect of heeling, reduces the part assembly, has simplified suspension system's structure, and reduce cost reaches whole car lightweight purpose.

Drawings

Fig. 1 is a schematic structural diagram of a light-duty four-bar linkage air suspension system provided by the present invention.

In the figure: 100 drive axle, 110a left axle upper cover plate, 110b right axle upper cover plate, 120a left axle lower cover plate, 120b right axle lower cover plate, 200a left airbag assembly, 200b right airbag assembly, 300a left shock absorber assembly, 300b right shock absorber assembly, 400a left lower push rod assembly, 400b right lower push rod assembly, 500a left upper push rod assembly, 500b right upper push rod assembly, 600V type base plate assembly, 700 stabilizer bar assembly, 710a left stabilizer bar connecting seat, 710b right stabilizer bar connecting seat, 800a left suspender system assembly and 800b right suspender system assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, the light-duty four-bar linkage air suspension system includes a vehicle frame, a drive axle 100, a left axle upper cover plate 110a and a right axle upper cover plate 110b fixedly connected to the drive axle 100, and a left axle lower cover plate 120a and a right axle lower cover plate 120b fixedly connected to the drive axle 100, wherein the left axle upper cover plate 110a, the right axle upper cover plate 110b, the left axle lower cover plate 120a and the right axle lower cover plate 120b are all fixedly connected to the drive axle 100 through nut bolts, and the drive axle 100 is further fixedly connected to a left stabilizer bar connecting seat 710a and a right stabilizer bar connecting seat 710b through nut bolts; the top of the drive axle 100 is hinged with a V-shaped base plate assembly 600 through a fastener, one side of the V-shaped base plate assembly 600 is respectively hinged with an upper left thrust rod assembly 500a and an upper right thrust rod assembly 500b through a spherical hinge and the fastener, and the other ends of the upper left thrust rod assembly 500a and the upper right thrust rod assembly 500b are hinged with the frame through the spherical hinge and the fastener; the top parts of the left axle upper cover plate 110a and the right axle upper cover plate 110b are respectively and fixedly provided with a left air bag assembly 200a and a right air bag assembly 200b, the upper ends of the left air bag assembly 200a and the right air bag assembly 200b are fixedly connected with a frame, one sides of the left axle lower cover plate 120a and the right axle lower cover plate 120b are respectively hinged with a left shock absorber assembly 300a and a right shock absorber assembly 300b, the upper ends of the left shock absorber assembly 300a and the right shock absorber assembly 300b are respectively and fixedly connected with the frame, one sides of the bottoms of the left axle lower cover plate 120a and the right axle lower cover plate 120b are respectively hinged with a left lower thrust rod assembly 400a and a right lower thrust rod assembly 400b through a spherical hinge and a fastener, and the other ends of the left lower thrust rod assembly 400a and the right lower thrust rod assembly 400b are respectively hinged with the frame through a spherical hinge and a fastener; one side of the left stabilizer bar connecting seat 710a and one side of the right stabilizer bar connecting seat 710b are hinged with a stabilizer bar assembly 700 through a spherical hinge and a fastener, the outer side of the stabilizer bar assembly 700 is respectively connected with a left suspender system assembly 800a and a right suspender system assembly 800b, the other ends of the left suspender system assembly 800a and the right suspender system assembly 800b are fixedly connected with the frame, the use of a balance beam is eliminated on the basis of the original structure, the mass of the suspension frame is reduced by 80 kilograms, a larger space is provided for the arrangement of the whole vehicle, the weight of the whole suspension frame is effectively reduced, the guiding and anti-roll effects of the suspension frame are taken into account, the parts assemblies are reduced, the structure of the suspension frame is simplified, the cost is reduced, the aim of lightening the whole vehicle is achieved, the stabilizer bar assembly 700 is of a U-shaped rod-shaped structure, the left suspender system assembly 800a and the right suspender system, the left and right upper bridge cover plates 110a and 110b, the left and right lower bridge cover plates 120a and 120b, the left and right

air bag assemblies

200a and 200b, the left and right shock absorber assemblies 300a and 300b, the left and right lower push rod assemblies 400a and 400b, the left and right upper

push rod assemblies

500a and 500b, the left and right stabilizer

bar connecting seats

710a and 710b, and the left and right boom system assemblies 800a and 800b are identical in structure.

In the embodiment, as shown in the figure, in which the drive axle 100 is installed and connected to the vehicle frame through the suspension system (the vehicle frame is not shown in the figure), when the wheels are impacted from the ground, the entire suspension system can make a parallelogram-like rotating motion by the left lower thrust rod assembly 400a, the right lower thrust rod assembly 400b, the left upper thrust assembly 500a and the right upper thrust assembly 500 b;

when a vehicle runs normally, impact force generated by uneven road surface is transmitted to the drive axle 100 through wheels, at the moment, the drive axle 100 drives the left air bag assembly 200a, the right air bag assembly 200b, the left shock absorber assembly 300a, the right shock absorber assembly 300b, the left lower push rod assembly 400a, the right lower push rod assembly 400b and the left upper push rod assembly 500a, the right upper push rod assembly 500b to move around the upper and lower push rod ball joints, the left air bag assembly 200a, the right air bag assembly 200b, the left shock absorber assembly 300a and the right shock absorber assembly 300b are compressed and stretched, and the impact force from the road surface is attenuated, so that the driving smoothness and the riding comfort are ensured;

when the light four-bar structure air suspension system and the vehicle axle move upwards around the spherical hinge of the thrust rod, the whole suspension system is limited by the piston in the left air bag assembly 200a and the right air bag assembly 200b impacting the buffer block arranged on the air bag upper cover; when the whole suspension system and the axle move downwards around the spherical hinge of the thrust rod, the left shock absorber assembly 300a and the right shock absorber assembly 300b are stretched to the maximum limit, so that the whole suspension system is limited in the downward jumping;

when the whole suspension system is subjected to lateral force from the road surface, the transverse force is borne by the left upper thrust rod assembly 500a and the right upper thrust rod assembly 500b, and the transverse displacement of the axle is restrained; when the vehicle body rolls, the transverse stabilizer bar system and the air bag assembly resist the roll, so that good roll resistance is obtained;

from structural the guidance system and the anti system of heeling and integrative having compromise, compare simultaneously and remove the use of equalizing beam with traditional air suspension, reduced the quantity of entire system spare part, arrange for whole car and provide bigger space, and the quality of the rear suspension system that has just significantly reduced accords with the lightweight development trend of whole car.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A light-duty four-bar linkage structure air suspension system comprises a vehicle frame, a drive axle (100), a left axle upper cover plate (110 a) and a right axle upper cover plate (110 b) fixedly connected with the drive axle (100), and a left axle lower cover plate (120 a) and a right axle lower cover plate (120 b) fixedly connected with the drive axle (100), and is characterized in that the left axle upper cover plate (110 a), the right axle upper cover plate (110 b), the left axle lower cover plate (120 a) and the right axle lower cover plate (120 b) are fixedly connected with the drive axle (100) through nut bolts, and the drive axle (100) is also fixedly connected with a left stabilizer bar connecting seat (710 a) and a right stabilizer bar connecting seat (710 b) through nut bolts respectively;

the top of the drive axle (100) is hinged with a V-shaped base plate assembly (600) through a fastener, one side of the V-shaped base plate assembly (600) is respectively hinged with an upper left thrust rod assembly (500 a) and an upper right thrust rod assembly (500 b) through a spherical hinge and the fastener, and the other ends of the upper left thrust rod assembly (500 a) and the upper right thrust rod assembly (500 b) are hinged with the frame through the spherical hinge and the fastener;

the top parts of the left bridge upper cover plate (110 a) and the right bridge upper cover plate (110 b) are respectively and fixedly provided with a left air bag assembly (200 a) and a right air bag assembly (200 b), the upper ends of the left air bag assembly (200 a) and the right air bag assembly (200 b) are fixedly connected with the frame, one side of the left axle lower cover plate (120 a) and one side of the right axle lower cover plate (120 b) are respectively hinged with a left shock absorber assembly (300 a) and a right shock absorber assembly (300 b), the upper ends of the left shock absorber assembly (300 a) and the right shock absorber assembly (300 b) are fixedly connected with the frame, and one sides of the bottoms of the left bridge lower cover plate (120 a) and the right bridge lower cover plate (120 b) are respectively hinged with a left lower thrust rod assembly (400 a) and a right lower thrust rod assembly (400 b) through a spherical hinge and a fastener, the other ends of the left lower thrust rod assembly (400 a) and the right lower thrust rod assembly (400 b) are hinged with the frame through a spherical hinge and a fastener;

one side of the left stabilizer bar connecting seat (710 a) and one side of the right stabilizer bar connecting seat (710 b) are hinged with a stabilizer bar assembly (700) through a spherical hinge and a fastener, the outer side of the stabilizer bar assembly (700) is respectively connected with a left suspender system assembly (800 a) and a right suspender system assembly (800 b), and the other ends of the left suspender system assembly (800 a) and the right suspender system assembly (800 b) are fixedly connected with the frame.

2. A light-weight four-bar linkage air suspension system as claimed in claim 1, wherein the stabilizer bar assembly (700) is a U-shaped rod-like structure, and the left and right boom system assemblies (800 a, 800 b) are symmetrically arranged on the stabilizer bar assembly (700).

3. The light-weight four-bar linkage air suspension system of claim 1, wherein the left and right upper axle cover plates (110 a, 120 b), the left and right lower axle cover plates (120 a, 120 b), the left and right air bag assemblies (200 a, 200 b), the left and right shock absorber assemblies (300 a, 300 b), the left and right lower thrust rod assemblies (400 a, 400 b), the left and right upper thrust rod assemblies (500 a, 500 b), the left and right stabilizer bar connecting seats (710 a, 710 b), and the left and right boom system assemblies (800 a, 800 b) are identical in structure.