Automobile frame bushing

Abstract

The utility model relates to the technical field of automobile parts discloses a kind of automobile frame bushings, including annular body, multiple supporting rods are fixed with annular array in annular body inside, the end portion of multiple supporting rods is fixedly connected with mounting frame, vulcanization bushing is provided in mounting frame inside, chuck is provided on annular body outer wall, vulcanization bushing outside is equipped with outer tube, and the structure such as inner tube and buffer rubber in vulcanization bushing cooperates jointly, can adapt to the load variation of different directions, ensure that bushing has better buffering performance in each direction, whether it is vertical direction road impact force, or horizontal direction steering force or braking force, bushing can effectively buffer and shock absorption by the synergistic effect of hydraulic pressure and rubber, ensure the stability and safety of automobile travel.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive frame bushing. Background Technology

[0002] When a car is in motion, it receives signals from the road surface, causing changes in the suspension positioning parameters. This affects the vehicle's handling stability and ride comfort. To address these issues, rubber bushings are used as connecting components between the suspension and the vehicle body. On one hand, they prevent rigid impacts from causing collisions, interference, or even damage between suspension components. On the other hand, as buffer components, they absorb road vibrations, improving ride comfort and handling. As residents' demands for automobiles increase, comfort and handling become increasingly important, requiring subframe bushings to have greater axial load-bearing capacity. Therefore, these bushings must withstand greater impacts and maximize the absorption of vibrational energy.

[0003] Existing devices have some drawbacks in use. For example, the subframe bushings used in automobiles are mostly simple metal bushings. Due to the simple metal bushings, the axial stiffness and radial stiffness cannot meet the predetermined target requirements due to structural influences and technical limitations. The bushing hard point creep is large, which affects the overall performance of the bushing. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive frame bushing that solves the problems that the axial stiffness and radial stiffness of the subframe bushing cannot meet the predetermined target requirements, and that the bushing has large hard point creep, which affects the overall performance of the bushing.

[0005] This utility model provides the following technical solution: an automobile frame bushing, including an annular body, with multiple support rods fixed in an annular array on the inner side of the annular body, and an installation frame fixedly connected to the ends of the multiple support rods away from the annular body, a vulcanized bushing provided on the inner side of the installation frame, a chuck provided on the outer wall of the annular body, and an outer tube sleeved on the outer side of the vulcanized bushing.

[0006] As a preferred embodiment of the above technical solution, the vulcanized bushing includes an inner tube fixed to the inner side of the mounting frame and an insert fixed to the inner wall of the annular body, with a cushioning rubber fixedly sleeved on the outer wall of the insert.

[0007] As a preferred embodiment of the above technical solution, the chuck includes an inner skeleton, which is fixedly sleeved on the top and bottom outer walls of the insert, and an outer skeleton is fixedly sleeved on the outer wall of the inner skeleton, with protective rubber provided on the inner side of the inner skeleton.

[0008] As a preferred embodiment of the above technical solution, a receiving cavity is provided on the inner side of the annular body, and the inner side of the receiving cavity is filled with hydraulic oil.

[0009] As a preferred embodiment of the above technical solution, both the inner and outer frames are provided with openings for the support rods to pass through.

[0010] As a preferred embodiment of the above technical solution, both the cushioning rubber and the protective rubber are made of natural rubber, and the inner tube is made of aluminum-magnesium-silicon alloy.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the inner tube and buffer rubber in the vulcanized bushing work together to adapt to load changes in different directions, ensuring that the bushing has good buffering performance in all directions. Whether it is the road impact force in the vertical direction or the steering force or braking force in the horizontal direction, the bushing can effectively buffer and dampen through the synergistic effect of hydraulics and rubber, ensuring the stability and safety of the vehicle. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of an automotive frame bushing;

[0014] Figure 2 This is a schematic diagram of the internal structure of a toroidal body;

[0015] Figure 3 This is a cross-sectional structural diagram of an automobile frame bushing;

[0016] Figure 4 This is an exploded structural diagram of an automobile frame bushing.

[0017] In the diagram: 1. Ring body; 101. Support rod; 102. Mounting frame; 103. Receiving cavity; 2. Vulcanized bushing; 3. Inner tube; 4. Insert plate; 5. Buffer rubber; 6. Outer tube; 7. Chuck; 8. Inner skeleton; 9. Protective rubber; 10. Hydraulic oil; 11. Outer skeleton; 111. Opening. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0019] like Figures 1-4As shown, this utility model provides a technical solution: an automotive frame bushing, including an annular body 1, with multiple support rods 101 fixed in an annular array on the inner side of the annular body 1, and an installation frame 102 fixedly connected to the ends of the multiple support rods 101 away from the annular body 1. A vulcanized bushing 2 is provided on the inner side of the installation frame 102, a chuck 7 is provided on the outer wall of the annular body 1, and an outer tube 6 is sleeved on the outer side of the vulcanized bushing 2. The vulcanized bushing 2 includes an inner tube 3 fixed to the inner side of the installation frame 102 and an insert 4 fixed to the inner wall of the annular body 1. A buffer rubber 5 is fixedly sleeved on the outer wall of the insert 4. The chuck 7 includes an inner skeleton 8, which is fixedly sleeved on the top and bottom outer walls of the insert 4. An outer skeleton 11 is fixedly sleeved on the outer wall of the inner skeleton 8. A protective rubber 9 is provided on the inner side of the inner skeleton 8. A receiving cavity 103 is opened on the inner side of the annular body 1. The side is filled with hydraulic oil 10. In actual use, when the car is in motion, the frame will be subjected to various dynamic loads, such as vibration caused by uneven road surface and inertial force generated by vehicle acceleration and deceleration. These loads will be transmitted to the hydraulic bushing. Since the cavity 103 inside the annular body 1 is filled with hydraulic oil 10, when the load is applied to the bushing, the hydraulic oil 10 will flow in the cavity 103. The buffer rubber 5 fixedly sleeved on the outer wall of the insert 4 will also undergo elastic deformation. When the frame produces a small displacement or vibration during vehicle operation, the buffer rubber 5 can offset part of the vibration energy through its own elastic recovery force, further reducing the transmission of vibration and noise. The chuck 7 adopts a multi-layer structure of inner skeleton 8 and outer skeleton 11, and the inner skeleton 8 is fixedly connected to the insert 4, and the outer skeleton 11 is tightly sleeved with the inner skeleton 8. This structure enhances the overall strength and rigidity of the chuck 7, effectively withstanding the preload during installation and various dynamic loads during vehicle operation. It prevents deformation or damage to the chuck 7, ensuring a secure and reliable connection between the bushing and the frame. The protective rubber 9 inside the inner skeleton 8 provides isolation and protection. It prevents direct contact between the inner skeleton 8 and surrounding metal components, reducing wear and corrosion and extending the service life of the chuck 7. Simultaneously, the protective rubber 9 also absorbs vibration and noise to a certain extent, further improving the bushing's performance.

[0020] As one implementation method in this embodiment, such as Figure 4 As shown, both the inner frame 8 and the outer frame 11 have openings 111 for the support rod 101 to pass through.

[0021] Among them, the cushioning rubber 5 and the protective rubber 9 are both made of natural rubber material, and NR material can be used. The inner tube 3 is made of aluminum-magnesium-silicon alloy material, and 6061-T6 material can be used.

[0022] Working principle: During vehicle operation, the frame is subjected to various dynamic loads, such as vibrations caused by uneven road surfaces and inertial forces generated by vehicle acceleration and deceleration. These loads are transmitted to the hydraulic bushing. Since the cavity 103 inside the annular body 1 is filled with hydraulic oil 10, when the load acts on the bushing, the hydraulic oil 10 flows within the cavity 103. For example, when the frame is subjected to a vertical impact force, the hydraulic oil 10 flows from one chamber to another. The flow and compression of the hydraulic oil 10 absorb and dissipate energy, thereby playing a role in buffering and shock absorption. At the same time, the buffer rubber 5 fixedly sleeved on the outer wall of the insert 4 also undergoes elastic deformation. During vehicle operation, when the frame experiences slight displacement or vibration, the buffer rubber 5 can offset some of the vibration energy through its own elastic restoring force, further reducing the transmission of vibration and noise. Moreover, the inner tube 3 in the vulcanized bushing 2 and the buffer rubber 5 work together to adapt to load changes in different directions, ensuring that the bushing has good buffering performance in all directions.

[0023] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A vehicle frame bushing, comprising an annular body (1), characterized in that: Multiple support rods (101) are fixed in a ring array on the inner side of the annular body (1). The ends of the multiple support rods (101) away from the annular body (1) are fixedly connected to an installation frame (102). A vulcanizing bushing (2) is provided on the inner side of the installation frame (102). A chuck (7) is provided on the outer wall of the annular body (1). An outer tube (6) is sleeved on the outer side of the vulcanizing bushing (2).

2. The automotive frame bushing according to claim 1, characterized in that: The vulcanized bushing (2) includes an inner tube (3) fixed inside the mounting frame (102) and a insert (4) fixed on the inner wall of the annular body (1). A buffer rubber (5) is fixedly sleeved on the outer wall of the insert (4).

3. The automobile frame bushing according to claim 2, characterized in that: The chuck (7) includes an inner frame (8), which is fixedly sleeved on the top and bottom outer walls of the insert (4). An outer frame (11) is fixedly sleeved on the outer wall of the inner frame (8), and a protective rubber (9) is provided on the inner side of the inner frame (8).

4. The automobile frame bushing according to claim 1, characterized in that: The annular body (1) has a receiving cavity (103) on its inner side, and the receiving cavity (103) is filled with hydraulic oil (10).

5. The automobile frame bushing according to claim 3, characterized in that: Both the inner frame (8) and the outer frame (11) have openings (111) for the support rod (101) to pass through.

6. The automobile frame bushing according to claim 2, characterized in that: Both the buffer rubber (5) and the protective rubber (9) are made of natural rubber, and the inner tube (3) is made of aluminum-magnesium-silicon alloy.

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