Automobile suspension bushing structure

Abstract

The utility model relates to the technical field of automobile parts, and discloses an automobile suspension lining structure which comprises a plastic outer pipe, a rubber sleeve is fixedly bonded to the inner side of the plastic outer pipe, supporting rods are fixedly connected to the inner walls of the two opposite sides of the bottom of the plastic outer pipe, and a plastic wrapping pipe is fixedly connected between the two supporting rods. The outer wall of the middle of the plastic wrapping pipe is fixedly sleeved with a plastic wrapping pipe, a vulcanized inner pipe is fixed to the inner side of the plastic wrapping pipe, the outer wall of the middle of the plastic wrapping pipe is fixedly sleeved with a hopper-shaped plastic connecting pipe, the outer wall of the top of the plastic wrapping pipe is sleeved with a plastic inner sleeve, and the outer wall of the plastic inner sleeve is fixedly sleeved with a plastic outer sleeve. The lower end face of the plastic outer sleeve is fixed to the upper end face of the hopper-shaped plastic connecting pipe, and plastic parts such as the plastic wrapping pipe, the plastic inner sleeve and the plastic outer sleeve provide stable support and specific rigidity for the whole structure and are matched with the rubber sleeve, so that the lining can generate enough damping to attenuate vibration under low-frequency vibration, and the vibration resistance of the lining is improved. Therefore, the low-frequency damping performance of the suspension is improved.

Description

Technical Field

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

[0002] In numerous fields such as automobiles and machinery, the suspension system, as a key component, plays a crucial role in isolating vibrations, reducing noise, and ensuring stable equipment operation. Among these components, the bushing, as one of the core components of the suspension system, directly affects the overall vibration handling effectiveness of the entire system. Currently, most common bushing structures on the market are primarily made of rubber, or simply combine rubber bushings with other simple metal or plastic components. These existing technologies can provide a certain degree of vibration damping under normal operating conditions. The rubber bushing, with its good elasticity, can absorb and attenuate vibration energy to a certain extent, providing basic vibration isolation for the equipment.

[0003] Existing devices have some drawbacks in use. For example, existing bushings have a relatively simple way of dispersing and attenuating vibration energy, and lack effective structural design to change the transmission path and mode of vibration. This makes it difficult for vibration energy to be more fully dispersed and attenuated during transmission, and cannot meet the increasingly stringent requirements of modern equipment for the low-frequency damping performance of suspension systems. Utility Model Content

[0004] The purpose of this utility model is to provide an automotive suspension bushing structure that solves the problem that existing bushings have a relatively simple way of dispersing and attenuating vibration energy and lack effective structural design to change the transmission path and mode of vibration.

[0005] This utility model provides the following technical solution: an automotive suspension bushing structure, comprising a plastic outer tube, a rubber sleeve bonded to the inner side of the plastic outer tube, support rods fixedly connected to the inner walls of opposite sides at the bottom of the plastic outer tube, a plastic-coated tube fixedly connected between the two support rods, a vulcanized inner tube fixedly sleeved on the outer wall of the middle part of the plastic-coated tube, a bucket-shaped plastic connecting tube fixedly sleeved on the outer wall of the middle part of the plastic-coated tube, a plastic inner sleeve sleeved on the outer wall of the top of the plastic-coated tube, a plastic outer sleeve fixedly sleeved on the outer wall of the plastic inner sleeve, and the lower end face of the plastic outer sleeve fixed to the upper end face of the bucket-shaped plastic connecting tube.

[0006] As a preferred embodiment of the above technical solution, limiting protrusions are fixedly connected to the inner walls of the opposite sides of the plastic inner sleeve, and limiting slots adapted to the limiting protrusions are provided on the outer walls of the opposite sides of the plastic covering tube.

[0007] As a preferred embodiment of the above technical solution, the inner wall of the plastic-coated tube is provided with a ring array of multiple positioning slots, and the outer wall of the vulcanized inner tube is provided with a ring array of multiple positioning protrusions adapted to the positioning slots.

[0008] As a preferred embodiment of the above technical solution, the rubber sleeve is made of natural rubber material.

[0009] As a preferred embodiment of the above technical solution, multiple weight-reducing grooves are provided on the bottom outer wall of the plastic outer tube.

[0010] As a preferred embodiment of the above technical solution, the annular array of the plastic jacket has multiple weight-reduction cavities.

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

[0012] In this invention, plastic components such as the plastic-coated tube, plastic inner sleeve, and plastic outer sleeve provide stable support and specific rigidity for the entire structure. In conjunction with the rubber sleeve, the bushing can generate sufficient damping to attenuate vibrations at low frequencies while maintaining a certain structural stability, avoiding the problem of excessive vibration transmission due to insufficient damping. Furthermore, the bucket-shaped plastic connecting tube fixedly sleeved on the outer wall of the middle part of the plastic-coated tube plays an important role in vibration regulation. The bucket-shaped structure can change the transmission path and mode of vibration at low frequencies, allowing the vibration energy to be more effectively dispersed and attenuated during transmission, thereby improving the low-frequency damping performance of the suspension. Attached Figure Description

[0013] Figure 1 A first-person view schematic diagram of an overall automotive suspension bushing structure;

[0014] Figure 2 This is an exploded view of the overall structure of an automotive suspension bushing.

[0015] Figure 3 This is a schematic cross-sectional view of an automotive suspension bushing structure.

[0016] Figure 4 This is a partial three-dimensional structural diagram of an automotive suspension bushing structure.

[0017] Figure 5 This is a partial exploded view of an automotive suspension bushing structure.

[0018] Figure 6 This is a schematic diagram of the overall second-view structure of an automotive suspension bushing.

[0019] In the diagram: 1. Plastic outer tube; 101. Weight reduction groove; 2. Plastic-coated tube; 3. Vulcanized inner tube; 4. Plastic outer sleeve; 401. Weight reduction cavity; 5. Plastic inner sleeve; 6. Bucket-shaped plastic connecting tube; 7. Rubber sleeve; 8. Limiting slot; 9. Limiting protrusion; 10. Positioning slot; 11. Positioning protrusion; 12. Support rod. Detailed Implementation

[0020] 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

[0021] like Figures 1-6 As shown, this utility model provides a technical solution: an automotive suspension bushing structure, including a plastic outer tube 1, a rubber sleeve 7 glued and fixed to the inner side of the plastic outer tube 1, support rods 12 fixedly connected to the inner walls of the two opposite sides at the bottom of the plastic outer tube 1, a plastic-coated tube 2 fixedly connected between the two support rods 12, a vulcanized inner tube 3 fixedly sleeved on the outer wall of the middle part of the plastic-coated tube 2, a bucket-shaped plastic connecting tube 6 fixedly sleeved on the outer wall of the middle part of the plastic-coated tube 2, a plastic inner sleeve 5 sleeved on the outer wall of the top of the plastic-coated tube 2, a plastic outer sleeve 4 fixedly sleeved on the outer wall of the plastic inner sleeve 5, and the lower end face of the plastic outer sleeve 4 fixed to the upper end face of the bucket-shaped plastic connecting tube 6. In specific use, the assembled bushing structure is installed as a whole. When installed in the corresponding position of the car suspension system, the plastic outer tube 1 is fixedly connected to the inner walls of the two opposite sides at the bottom, and the plastic covering tube 2 is fixedly connected between the two support rods 12. During installation, the plastic outer tube 1 is accurately matched with the mounting seat of the suspension system or other related components through reasonable operation. The plastic outer tube 1 is firmly fixed to the suspension system with bolts and other fasteners to ensure that the bushing can stably withstand various forces and vibrations during the car's operation. The bucket-shaped plastic connecting tube 6 fixedly sleeved on the outer wall of the middle part of the plastic covering tube 2 plays an important role in vibration regulation. The bucket-shaped structure can change the transmission path and mode of vibration during low-frequency vibration, so that the vibration energy is more effectively dispersed and attenuated during the transmission process.

[0022] It should also be noted that the bushing structure uses a variety of materials such as plastic and rubber. The rubber sleeve 7 is bonded and fixed to the inside of the plastic outer tube 1. The rubber material has good elasticity and damping characteristics. During low-frequency vibration, the rubber sleeve 7 can undergo large elastic deformation, effectively absorbing and dissipating low-frequency vibration energy. At the same time, the plastic components such as the plastic-coated tube 2, the plastic inner sleeve 5, and the plastic outer sleeve 4 provide stable support and specific stiffness for the entire structure. Together with the rubber sleeve 7, the bushing can generate sufficient damping to attenuate vibration under low-frequency vibration, while maintaining a certain structural stability. This avoids the problem of excessive vibration transmission caused by insufficient damping, thereby improving the low-frequency damping performance of the suspension.

[0023] As one implementation method in this embodiment, such as Figure 5 As shown, limiting protrusions 9 are fixedly connected to the inner walls of opposite sides of the plastic inner sleeve 5, and limiting slots 8 adapted to the limiting protrusions 9 are provided on the outer walls of opposite sides of the plastic covering tube 2. In specific use, the plastic inner sleeve 5 is slowly put onto the top outer wall of the plastic covering tube 2. During the insertion process, the limiting protrusions 9 on the inner walls of opposite sides of the plastic inner sleeve 5 and the limiting slots 8 on the outer walls of opposite sides of the plastic covering tube 2 must be precisely aligned to ensure that the limiting protrusions 9 can be smoothly and accurately inserted into the limiting slots 8 to achieve initial positioning and limiting. This step is very critical. Accurate limiting installation can ensure that the bushing will not move relative to each component during subsequent use and maintain the stability of the structure. Then, the plastic outer sleeve 4 and the bucket-shaped plastic connecting tube 6 are heat-fused and fixed.

[0024] As one implementation method in this embodiment, such as Figure 5 As shown, multiple positioning slots 10 are arranged in a ring array on the inner wall of the plastic-coated tube 2, and multiple positioning protrusions 11 adapted to the positioning slots 10 are fixed in a ring array on the outer wall of the vulcanized inner tube 3. The plastic inner sleeve 5 is put onto the top outer wall of the plastic-coated tube 2 after the vulcanized inner tube 3 has been installed. When putting it on, attention should be paid to the alignment and insertion of the limiting protrusions 9 on the inner walls of the plastic inner sleeve 5 on the opposite sides and the limiting slots 8 on the outer walls of the plastic-coated tube 2 on the opposite sides. Ensure that the limiting protrusions 9 smoothly enter the limiting slots 8 to achieve the initial positioning and limiting of the plastic inner sleeve 5 and the plastic-coated tube 2. At this time, since the vulcanized inner tube 3 has achieved precise positioning with the plastic-coated tube 2 through the positioning protrusions 11 and the positioning slots 10, the installation of the plastic inner sleeve 5 can also be more accurate and stable. Then, the vulcanized inner tube 3 and the plastic-coated tube 2 are fixed by heat fusion.

[0025] Among them, the rubber sleeve 7 is made of natural rubber material, which can be NR material, and the plastic outer tube 1, plastic covering tube 2, plastic inner sleeve 5, plastic outer sleeve 4 and bucket-shaped plastic connecting tube 6 can all be made of PA66-GF30 type plastic.

[0026] As one implementation method in this embodiment, such as Figure 1 As shown, the plastic outer tube 1 has multiple weight-reducing grooves 101 on its bottom outer wall, and the plastic outer sleeve 4 has multiple weight-reducing cavities 401 arranged in a ring. The multiple weight-reducing grooves 101 on the bottom outer wall of the plastic outer tube 1 and the multiple weight-reducing cavities 401 arranged in a ring on the plastic outer sleeve 4 effectively reduce the weight of the bushing structure itself. The lighter bushing structure helps to reduce the curb weight of the car, thereby improving the fuel economy of the car, reducing energy consumption and exhaust emissions, which is in line with the development trend of energy conservation and environmental protection in modern automobiles.

[0027] 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 car suspension bushing structure, comprising a plastic outer tube (1), characterized in that: A rubber sleeve (7) is glued and fixed to the inner side of the plastic outer tube (1). Support rods (12) are fixedly connected to the inner walls of the opposite sides at the bottom of the plastic outer tube (1). A plastic-coated tube (2) is fixedly connected between the two support rods (12). A vulcanized inner tube (3) is fixedly sleeved on the outer wall of the middle part of the plastic-coated tube (2). A bucket-shaped plastic connecting tube (6) is fixedly sleeved on the outer wall of the middle part of the plastic-coated tube (2). A plastic inner sleeve (5) is sleeved on the outer wall of the top of the plastic-coated tube (2). A plastic outer sleeve (4) is fixedly sleeved on the outer wall of the plastic inner sleeve (5). The lower end face of the plastic outer sleeve (4) is fixed to the upper end face of the bucket-shaped plastic connecting tube (6).

2. The automotive suspension bushing structure according to claim 1, characterized in that: Limiting protrusions (9) are fixedly connected to the inner walls of opposite sides of the plastic inner sleeve (5), and limiting slots (8) adapted to the limiting protrusions (9) are provided on the outer walls of opposite sides of the plastic covering tube (2).

3. The automotive suspension bushing structure according to claim 1, characterized in that: The inner wall of the plastic-coated tube (2) is provided with a ring array of multiple positioning slots (10), and the outer wall of the vulcanized inner tube (3) is provided with a ring array of multiple positioning protrusions (11) adapted to the positioning slots (10).

4. The automotive suspension bushing structure according to claim 1, characterized in that: The rubber sleeve (7) is made of natural rubber material.

5. The automotive suspension bushing structure according to claim 1, characterized in that: Multiple weight-reducing grooves (101) are provided on the bottom outer wall of the plastic outer tube (1).

6. The automotive suspension bushing structure according to claim 1, characterized in that: The plastic jacket (4) has multiple weight-reducing cavities (401) arranged in a ring array.

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