Double-arm type independent suspension

Abstract

The double-arm type independent suspension comprises two shock absorbers, an air bag, a wheel side system, supporting arm assemblies on the two sides and a stabilizing rod, each supporting arm assembly on the two sides comprises a vertical arm, an upper A-shaped arm and a lower A-shaped arm, and the vertex angle ends of the upper A-shaped arms and the vertex angle ends of the lower A-shaped arms are correspondingly and rotationally connected to the upper ends and the lower ends of the vertical arms respectively. The other two ends of the upper A-shaped arm and the lower A-shaped arm are rotationally mounted on the frame; the two shock absorbers and the air bags are correspondingly and fixedly installed at the bottom ends and the top ends of the vertical arms on the two sides respectively, the two wheel edge systems are correspondingly and rotationally installed on the outer sides of the vertical arms on the two sides respectively, and the stabilizing rod is rotationally connected between the inner sides of the vertical arms on the two sides. The wheel side systems, the supporting arm assemblies and the air bags bear the vertical load of a vehicle together, the air bags and the shock absorbers buffer and attenuate impact from the ground together, the wheel side system on each side can jump independently through the upper A-shaped arm and the lower A-shaped arm, the comfort of the whole vehicle is improved, and the service life of the vehicle is prolonged. And impact force on one side can be prevented from being transmitted to the other side.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile suspension, in particular to a double-arm independent suspension. BACKGROUND

[0002] Suspension is the general term of all force transmission connecting devices between the frame or the load-bearing body of the automobile and the axle or the wheel, its function is to transmit the force and the force torque between the wheel and the frame, and to buffer the impact force from the uneven road to the frame or the body, and to reduce the vibration caused thereby, so as to ensure that the automobile can travel smoothly.

[0003] At present, for the vehicle with larger load, the non-independent suspension such as the steel plate spring suspension is usually adopted, its structural feature is that the wheels on both sides are connected by a whole frame, the wheel together with the axle is suspended below the frame or the body through the elastic suspension system, although it has the advantages of simple structure, low cost, high strength, easy maintenance and the like, but its comfort and steering stability are relatively poor. SUMMARY

[0004] The utility model discloses a double-arm independent suspension, which overcomes the defects and deficiencies of the prior art, makes the wheel edge system bear the vertical load of the vehicle together with the support arm assembly and the air bag, buffers and attenuates the impact from the ground together with the shock absorber, and the wheel edge system on each side can independently jump through the upper and lower A-shaped arms to improve the comfort of the whole vehicle and prevent the impact force on one side from being transmitted to the other side.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A double-arm independent suspension, comprising two shock absorbers, two air bags, two wheel edge systems, two side support arm assemblies and a stabilizer bar, characterized in that: the two side support arm assemblies each comprise a vertical arm, an upper A-shaped arm and a lower A-shaped arm, the top corner ends of the upper A-shaped arm and the lower A-shaped arm are respectively rotatably connected to the upper and lower ends of the vertical arm, and the other two ends of the upper A-shaped arm and the lower A-shaped arm are rotatably installed on the frame; the two shock absorbers and the two air bags are respectively fixedly installed at the bottom end and the top end of the vertical arm on both sides, the two wheel edge systems are respectively rotatably installed on the outer side of the vertical arm on both sides, and the stabilizer bar is rotatably connected between the inner sides of the vertical arms on both sides.

[0007] Further, the other two ends of the upper A-shaped arm and the lower A-shaped arm are each provided with a spherical hinge.

[0008] Further, a first bolt is threaded through both ends of the pin shafts of the two ball hinges on the upper side and screwed into screw holes in the vehicle frame, and the other two ends of the upper A-shaped arm are pivotally mounted on the vehicle frame; a second bolt is threaded through both ends of the pin shafts of the two ball hinges on the lower side and screwed into screw holes in a connecting block fixedly welded to the vehicle frame, and the other two ends of the lower A-shaped arm are pivotally mounted on the vehicle frame.

[0009] Further, the inner sides of the bottom end and the top end of the vertical arm are integrally connected with a shock absorber mounting seat and an air bag mounting seat, respectively, for fixedly mounting the two shock absorbers and the two air bags.

[0010] Further, the outer side of the vertical arm is pivotally mounted with a kingpin for pivotally mounting the two wheel-side systems.

[0011] Further, the inner side of the vertical arm is pivotally connected with a suspension rod at the upper end, and the two ends of the stabilizing rod are correspondingly pivotally connected to the bottom ends of the suspension rods on both sides.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] The present application is a double-arm independent suspension structure, so that the wheel-side system, together with the supporting arm assembly and the air bag, bears the vertical load of the vehicle, the air bag and the shock absorber together buffer and attenuate the impact from the ground, and the wheel-side system on each side can independently jump through the upper and lower A-shaped arms, which not only improves the comfort of the vehicle, but also prevents the impact force on one side from being transmitted to the other side; in addition, the interchangeability of the components is good, which reduces the maintenance cost and the failure rate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the present application.

[0015] Fig. 2 It is a partial structural schematic view of the present application.

[0016] Fig. 3 It is a structural schematic view of the unilateral supporting arm assembly in the present application. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Reference is made to Figs. 1-3A double-arm independent suspension, comprising two shock absorbers 1, two air bags 2, two wheel-side systems 3, two side support arm assemblies 4 and a stabilizer bar 5, each of the two side support arm assemblies 4 comprises a vertical arm 6, an upper A-shaped arm 7 and a lower A-shaped arm 8, the top end of the upper A-shaped arm 7 and the lower A-shaped arm 8 is respectively rotatably connected to the upper end and the lower end of the vertical arm 6, and the other two ends of the upper A-shaped arm 7 and the lower A-shaped arm 8 are rotatably installed on a vehicle frame; the two shock absorbers 1 and the two air bags 2 are respectively fixedly installed on the bottom end and the top end of the vertical arm 6 on the two sides, the two wheel-side systems 3 are respectively rotatably installed on the outer side of the vertical arm 6 on the two sides, and the stabilizer bar 5 is rotatably connected between the inner sides of the vertical arm 6 on the two sides.

[0019] In the utility model, the other two ends of the upper A-shaped arm 7 and the lower A-shaped arm 8 are provided with ball hinges 9.

[0020] In the utility model, the first bolt 10 penetrates the pin shafts of the two ball hinges 9 on the upper side and is screwed into the screw holes in the vehicle frame, so that the other two ends of the upper A-shaped arm 7 are rotatably installed on the vehicle frame; in addition, the second bolt 11 penetrates the pin shafts of the two ball hinges 9 on the lower side and is screwed into the screw holes in the connecting block 12 fixedly welded on the vehicle frame, so that the other two ends of the lower A-shaped arm 8 are rotatably installed on the vehicle frame.

[0021] In the utility model, the inner sides of the bottom end and the top end of the vertical arm 6 are integrally connected with a shock absorber mounting seat 13 and an air bag mounting seat 14 respectively, so that the two shock absorbers 1 and the two air bags 2 are respectively fixedly installed on the bottom end and the top end of the vertical arm 6 on the two sides.

[0022] In the utility model, the outer side of the vertical arm 6 is rotatably installed with a king pin 15, so that the two wheel-side systems 3 are respectively rotatably installed on the outer side of the vertical arm 6 on the two sides.

[0023] In the utility model, the upper end of the inner side of the vertical arm 6 is rotatably connected with a boom 16, and the two ends of the stabilizer bar 5 are respectively rotatably connected to the bottom end of the boom 16 on the two sides, so that the stabilizer bar 5 is rotatably connected between the inner sides of the vertical arm 6 on the two sides.

[0024] The utility model will be further described in combination with the drawings as follows:

[0025] During assembly, the two shock absorbers 1 and the two air bags 2 are respectively fixedly installed on the shock absorber mounting seat 13 and the air bag mounting seat 14 on the two sides, and the two wheel-side systems 3 are respectively connected with the king pin 15 on the two sides, so as to complete the installation of the two shock absorbers 1, the two air bags 2 and the two wheel-side systems 3.

[0026] Then, the first bolt 10 is threaded through the pin shafts of the two upper ball hinges 9 and screwed into the screw holes in the frame, so as to rotate and install the other two ends of the upper A-shaped arm 7 on the frame. In addition, the second bolt 11 is threaded through the pin shafts of the two lower ball hinges 9 and screwed into the screw holes in the connecting block 12 fixedly welded on the frame, so as to rotate and install the other two ends of the lower A-shaped arm 8 on the frame.

[0027] Furthermore, the upper ends of the two shock absorbers 1 and the two air bags 2 are connected to the frame, respectively.

[0028] When the vehicle is in use, the two wheel-side systems 3, together with the two side support arm assemblies 4 and the two air bags 2, bear the vertical load of the vehicle, the two air bags 2 and the two shock absorbers 1 together buffer and attenuate the impact from the ground, and the wheel-side system 3 on each side can jump independently through the upper A-shaped arm 7 and the lower A-shaped arm 8, so as to not only improve the comfort of the vehicle, but also prevent the impact force on one side from being transmitted to the other side.

[0029] Although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0030] Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; that is, various equivalent transformations made within the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A double wishbone independent suspension comprising two shock absorbers, two air bags, two wheel end systems, two side support arm assemblies and a stabilizer bar, characterized in that: The two side support arm assemblies each comprise a vertical arm, an upper A-shaped arm and a lower A-shaped arm, the top corner end of the upper A-shaped arm and the lower A-shaped arm is respectively rotatably connected to the upper and lower end of the vertical arm, the other two ends of the upper A-shaped arm and the lower A-shaped arm are rotatably installed on the frame; the two shock absorbers and the two air bags are respectively fixedly installed on the bottom end and the top end of the vertical arm on the two sides, the two wheel side systems are respectively rotatably installed on the outer side of the vertical arm on the two sides, and the stabilizer bar is rotatably connected between the inner sides of the vertical arms on the two sides.

2. The double wishbone independent suspension of claim 1, wherein: The other two ends of the upper A-shaped arm and the lower A-shaped arm are each installed with a spherical hinge.

3. The double wishbone independent suspension of claim 2, wherein: A first bolt is passed through the pin shafts of the two spherical hinges on the upper side and is screwed into the screw holes in the connecting block fixedly welded on the frame, so as to rotatably install the other two ends of the upper A-shaped arm on the frame; a second bolt is passed through the pin shafts of the two spherical hinges on the lower side and is screwed into the screw holes in the connecting block fixedly welded on the frame, so as to rotatably install the other two ends of the lower A-shaped arm on the frame.

4. The dual-arm independent suspension of claim 1, wherein: The inner sides of the bottom end and the top end of the vertical arm are respectively integrally connected with a shock absorber mounting seat and an air bag mounting seat, which are respectively used for fixedly installing the two shock absorbers and the two air bags.

5. The dual-arm independent suspension of claim 1, wherein: The outer side of the vertical arm is rotatably installed with a kingpin, which is used for rotatably installing the two wheel side systems.

6. The dual-arm independent suspension of claim 1, wherein: The upper end of the inner side of the vertical arm is rotatably connected with a boom, and the two ends of the stabilizer bar are respectively rotatably connected to the bottom end of the boom on the two sides.

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