Novel auxiliary frame assembly

Abstract

The utility model discloses a novel auxiliary frame assembly, which belongs to the technical field of automobiles and comprises a swing arm front support and a rear cross beam support, the swing arm front support is positioned behind the rear cross beam support, and two sides of the upper surface of the swing arm front support are fixedly connected with first supports; according to the utility model, the whole auxiliary frame adopts a pipe frame scheme, CAE (Computer Aided Engineering) analysis and thirty thousand comprehensive reliable road tests on a road show that the use requirements of customers are met, no quality problem is found, and the development cost of a traditional auxiliary frame is about 3-5 million, while the development cost of a new pipe auxiliary frame scheme and a bracket bending piece in the technology is expected to be 2 million, so that the auxiliary frame is very convenient to use. And meanwhile, the rubber bushings are additionally arranged at the connecting positions of the rear auxiliary frame and the automobile body, so that noise transmission and running vibration transmitted by wheels are reduced, and the control stability and smoothness of the automobile are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, especially a novel auxiliary frame assembly. BACKGROUND

[0002] With the continuous progress of the automobile industry, the comfort, controllability and safety of the automobile are increasingly improved, and the performance of the auxiliary frame as an important part of the automobile chassis system directly affects the driving experience of the whole vehicle.

[0003] The existing auxiliary frame is limited by the machining process and forming material, and has the problems of complex structure, large weight, high development cost of complete mold, and rigid connection, which causes large vibration transmission and cannot be effectively absorbed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a novel auxiliary frame assembly which solves the problems of complex structure, large weight, high development cost of complete mold and rigid connection of the existing auxiliary frame.

[0005] Technical scheme: a novel auxiliary frame assembly, comprising a swing arm front support and a rear cross beam support, the swing arm front support is located behind the rear cross beam support, the upper surface of the swing arm front support is fixedly connected with a support one on both sides, the upper surface of the rear cross beam support is fixedly connected with a support two on both sides, the top of the support one and the support two on the left side are fixedly connected with a left cross beam, the top of the support one and the support two on the right side are fixedly connected with a right cross beam, and the opposite sides of the swing arm front support and the rear cross beam support are fixedly connected with two lower pipe beams.

[0006] Further, the rear surface of the two support ones is fixedly connected with a stabilizer bar support.

[0007] Further, the upper surface of the left cross beam and the upper surface of the right cross beam are provided with a bushing.

[0008] Further, the front surface of the two bushings in front is fixedly connected with a wire harness fixing support.

[0009] Further, the upper surface of the two lower pipe beams is fixedly connected with a reinforcing plate, and the top of the two reinforcing plates is fixedly connected with the outer side wall of the left cross beam and the right cross beam respectively.

[0010] Further, the front surface of the swing arm front support and the upper surface of the lower pipe beam on the right side are fixedly connected with a bogie support.

[0011] Furthermore, a front suspension bracket is fixedly connected to the front surface of the swing arm front bracket, a rear suspension bracket is fixedly connected to the right side of the upper surface of the rear crossbeam bracket, and a left suspension bracket is fixedly connected to the front of the outer side wall of the lower tube beam located on the left side.

[0012] Furthermore, all of the bushings are made of rubber.

[0013] Beneficial effects: The subframe of this utility model adopts a tubular frame design. After CAE analysis and 30,000 km comprehensive road test, it meets the customer's requirements and no quality problems were found. The development cost of a traditional subframe is about 3-5 million RMB, while the development cost of the new tubular subframe design and bracket bending parts in this technology is estimated to be 2 million RMB, which greatly saves the overall vehicle development cost and reduces the overall vehicle development cost. At the same time, rubber bushings are added to all the connection points between the rear subframe and the body, which helps to reduce the transmission of noise and the driving vibration transmitted by the wheels, and improves the vehicle's handling stability and ride comfort. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] In the diagram: 1. Front swing arm bracket; 2. Rear crossbeam bracket; 3. Bracket 1; 4. Bracket 2; 5. Left crossbeam; 6. Right crossbeam; 7. Lower tube beam; 8. Stabilizer bar bracket; 9. Bushing; 10. Wiring harness fixing bracket; 11. Reinforcing plate; 12. Bogie bracket; 13. Front suspension bracket; 14. Rear suspension bracket; 15. Left suspension bracket. Detailed Implementation

[0016] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] like Figure 1 As shown, a novel subframe assembly is provided, including a front swing arm bracket 1 and a rear crossbeam bracket 2. The front swing arm bracket 1 is located behind the rear crossbeam bracket 2. Bracket 1 3 is fixedly connected to both sides of the upper surface of the front swing arm bracket 1. Bracket 2 4 is fixedly connected to both sides of the upper surface of the rear crossbeam bracket 2. The top of bracket 1 3 and bracket 2 4 on the left side are fixedly connected to a left crossbeam 5. The top of bracket 1 3 and bracket 2 4 on the right side are fixedly connected to a right crossbeam 6. Two lower tube beams 7 are fixedly connected to the opposite sides of the front swing arm bracket 1 and the rear crossbeam bracket 2.

[0019] The left cross beam 5 and the right cross beam 6 can be fixed above the front swing arm support 1 and the rear cross beam support 2 through the support one 3 and the support two 4, and the two lower tube beams 7 are fixed through the front swing arm support 1 and the rear cross beam support 2, that is, the main structure of the auxiliary frame can be composed, and the traditional auxiliary frame scheme is mainly composed of a blanking die, a punching die, a forming die, a shaping die, a gauge, welding, a clamp and a lifting device, etc. In the present technology, part of the support is adopted by bending and tailor welding, the main body is adopted by tube beam bending and disassembly, the cost of the full sequence die of the auxiliary frame development is reduced, the cost of the scheme is about 50% lower than that of the traditional scheme, and the main structure is purchased by pipe material scheme, so that the strength of the auxiliary frame meets the use requirement while the cost is reduced.

[0020] As shown in Figure 1 The rear surface of each of the two support one 3 is fixedly connected with a stabilizer bar support 8;

[0021] The two stabilizer bar supports 8 provide stable mounting points for the stabilizer bar, so that the stabilizer bar can maintain the correct position and posture during vehicle driving, and prevent the stabilizer bar from being displaced or shaken due to vibration, bumping and the like of the vehicle, so as to ensure that the stabilizer bar can effectively play its role of stabilizing the vehicle body.

[0022] As shown in Figure 1 The upper surface of the left cross beam 5 and the upper surface of the right cross beam 6 are provided with a plurality of bushings 9, and the material of the plurality of bushings 9 is rubber material;

[0023] The design of the bushing 9 increases the comfort and handling of the vehicle when the auxiliary frame is connected to the vehicle body, and the use of the plurality of bushings 9 of rubber material at the connection points of the auxiliary frame and the vehicle body can effectively isolate or reduce the vibration and noise transmitted from the road to the vehicle body, thereby improving the comfort of riding, and the use of the plurality of bushings 9 can also increase the flexible connection of the auxiliary frame, which helps to improve the handling performance of the vehicle.

[0024] As shown in Figure 1 The front surface of each of the two front bushings 9 is fixedly connected with a wire harness fixing support 10;

[0025] The two wire harness fixing supports 10 can firmly fix the wire harness on the auxiliary frame, prevent the wire harness from being displaced due to shaking and vibration during vehicle driving, ensure that the wire harness always remains in the predetermined position, avoid interference or friction with other parts, thereby reducing the risk of damage to the wire harness and prolonging the service life of the wire harness.

[0026] As shown in Figure 1 The upper surface of each of the two lower tube beams 7 is fixedly connected with a reinforcing plate 11, and the top end of each of the two reinforcing plates 11 is fixedly connected with the outer side wall of the left cross beam 5 and the right cross beam 6;

[0027] The two reinforcing plates 11 can disperse and transmit stress, prevent partial excessive deformation or damage of the auxiliary frame, and improve the structural reliability of the whole auxiliary frame assembly.

[0028] As shown in Figure 1 The front surface of the swing arm front support 1 and the upper surface of the right lower tube beam 7 are fixedly connected with a bogie support 12.

[0029] The bogie support 12 provides a stable mounting fulcrum for the bogie, ensures that the bogie can be accurately mounted on the auxiliary frame, and keeps the position of the bogie relatively stable during the driving of the vehicle, prevents the bogie from being displaced or loosened due to the vibration, bumping and the like of the vehicle, and thus guarantees the normal work of the steering system.

[0030] As shown in Figure 1 The front surface of the swing arm front support 1 is fixedly connected with a front suspension support 13, the upper surface of the rear cross beam support 2 is fixedly connected with a rear suspension support 14 on the right side, and the outer side wall of the lower tube beam 7 on the left side is fixedly connected with a left suspension support 15 in front of the front surface.

[0031] The front suspension support 13, the rear suspension support 14 and the left suspension support 15 are arranged to connect the auxiliary frame and the vehicle body, so that when the vehicle drives on different road conditions, various forces applied to the wheels by the road surface are transmitted to the corresponding suspension supports through the suspension system and further transmitted to other parts of the vehicle body or frame, so that the effective transmission of force in the whole vehicle structure is realized, and various components of the vehicle can jointly bear external force, and the normal driving of the vehicle is guaranteed.

[0032] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A new type of subframe assembly comprising a swing arm front bracket (1) and a rear cross beam bracket (2), characterized in that: The swing arm front support (1) is located behind the rear cross beam support (2), the upper surface of the swing arm front support (1) is fixedly connected with a support one (3) on both sides, the upper surface of the rear cross beam support (2) is fixedly connected with a support two (4) on both sides, the top of the support one (3) and the support two (4) on the left side are fixedly connected with a left cross beam (5), the top of the support one (3) and the support two (4) on the right side are fixedly connected with a right cross beam (6), and the opposite sides of the swing arm front support (1) and the rear cross beam support (2) are fixedly connected with two lower tube beams (7).

2. A new sub-frame assembly as claimed in claim 1, wherein: The rear surface of the two support ones (3) is fixedly connected with a stabilizer bar support (8).

3. A new sub-frame assembly as claimed in claim 1, wherein: The upper surface of the left cross beam (5) and the upper surface of the right cross beam (6) are provided with a bushing (9).

4. A new sub-frame assembly as claimed in claim 3, wherein: The front surface of the two bushings (9) in front is fixedly connected with a wire harness fixing support (10).

5. A new sub-frame assembly as claimed in claim 1, wherein: The upper surface of the two lower tube beams (7) is fixedly connected with a reinforcing plate (11), and the top of the two reinforcing plates (11) is fixedly connected with the outer side wall of the left cross beam (5) and the right cross beam (6) respectively.

6. A new sub-frame assembly as claimed in claim 1, wherein: The front surface of the swing arm front support (1) and the upper surface of the right lower tube beam (7) are fixedly connected with a bogie support (12).

7. A new sub-frame assembly as claimed in claim 1, wherein: The front surface of the swing arm front support (1) is fixedly connected with a front suspension support (13), the upper surface of the rear cross beam support (2) is fixedly connected with a rear suspension support (14) on the right side, and the outer side wall of the lower tube beam (7) on the left side is fixedly connected with a left suspension support (15) in front.

8. A new sub-frame assembly as claimed in claim 3, wherein: The material of the plurality of bushings (9) is rubber.

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