Plastic outer tube auxiliary frame hydraulic bushing structure

Abstract

The utility model relates to the technical field of automobile chassis auxiliary frame, specifically a plastic outer tube auxiliary frame hydraulic bush structure. A plastic outer tube auxiliary frame hydraulic bush structure, including auxiliary frame bush, its characterized in that: the auxiliary frame bush includes bush inner tube, metal outer tube, the outside of bush inner tube is equipped with metal outer tube, the outside of metal outer tube is equipped with bush outer sleeve, and metal outer tube and bush outer sleeve are combined as a whole through assembly procedure, and the outer edge side of bush outer sleeve is equipped with a plurality of sleeve boss structures. Compared with prior art, provide a kind of plastic outer tube auxiliary frame hydraulic bush structure, to match the assembly demand of iron auxiliary frame sleeve, bush outer sleeve adopts plastic material, and bush outer sleeve is made boss structure, after bush press fits in place, the bush boss structure of bush outer sleeve is matched with the groove of auxiliary frame sleeve, improves the pullout force of bush from auxiliary frame sleeve, enhances the reliability of part use.

Description

Technical Field

[0001] This utility model relates to the field of automotive chassis subframe technology, specifically a hydraulic bushing structure for a plastic outer tube subframe. Background Technology

[0002] With increasingly stringent requirements for lightweight vehicles, a large amount of engineering plastics are being used in the automotive industry. In automotive chassis components, rubber bushings used for vibration isolation, especially subframe bushings, often have outer tubes made of plastic. In some platform projects, OEMs use subframes of different materials to accommodate different configurations. Because the different materials result in different processing properties, the rubber bushings must be able to accommodate the assembly requirements of subframes made of both materials. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides a hydraulic bushing structure for a plastic outer tube subframe. The bushing designed in this way meets the requirements of high pull-out force, while reducing costs and achieving lightweighting.

[0004] To achieve the above objectives, a plastic outer tube subframe hydraulic bushing structure is designed, including a subframe bushing, characterized in that: the subframe bushing includes an inner bushing tube and a metal outer tube, the outer metal tube is sleeved on the outside of the inner bushing tube, and an outer bushing tube is sleeved on the outside of the outer metal tube, and the outer metal tube and the outer bushing tube are integrated by an assembly process; a plurality of outer bushing boss structures are provided on the outer edge of the outer bushing tube.

[0005] The bushing cover is made of plastic.

[0006] The bushing and outer cover and several outer cover bosses are integrally formed.

[0007] The number of the outer casing boss structures is 3 to 6.

[0008] The outer jacket boss structure is a long strip structure, with several long strip structures arranged horizontally on the outer edge of the liner jacket.

[0009] The subframe bushing is press-fitted into the subframe sleeve, and the outer boss structure of the subframe bushing matches the groove of the subframe sleeve.

[0010] Compared with the prior art, this utility model provides a plastic outer tube subframe hydraulic bushing structure. To match the assembly requirements of the iron subframe sleeve, the bushing outer sleeve is made of plastic and has a boss structure. After the bushing is pressed into place, the bushing boss structure of the bushing outer sleeve matches the groove of the subframe sleeve, which improves the pull-out force of the bushing from the subframe sleeve and enhances the reliability of the parts. Attached Figure Description

[0011] Figure 1This is a three-dimensional view of the structure of this utility model.

[0012] Figure 2 This is the main view of the structure of this utility model.

[0013] Figure 3 , Figure 4 This is a schematic diagram of the assembly of the present invention with the subframe sleeve.

[0014] See Figures 1 to 4 1 is the outer bushing, 2 is the raised structure of the outer bushing, 3 is the outer metal tube, 4 is the inner bushing tube, and 5 is the subframe sleeve. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figures 1 to 4 As shown, the subframe bushing includes an inner bushing tube and a metal outer tube. The outer metal tube 3 is fitted on the outside of the inner bushing tube 4, and the outer bushing sleeve 1 is fitted on the outside of the outer metal tube 3. The outer metal tube 3 and the outer bushing sleeve 1 are integrated through an assembly process. Several outer sleeve boss structures 2 are provided on the outer edge of the outer bushing sleeve 1.

[0017] The outer cover 1 is made of plastic.

[0018] The liner jacket 1 and several jacket boss structures 2 are integrally molded structures.

[0019] The number of outer boss structures 2 is 3 to 6.

[0020] The outer jacket boss structure 2 is a long strip structure, and several long strip structures are arranged horizontally on the outer edge of the liner jacket 1.

[0021] The subframe bushing is press-fitted into the subframe sleeve 5, and the outer boss structure 2 of the subframe bushing matches the groove of the subframe sleeve 5.

[0022] This bushing is designed to match the assembly requirements of the subframe sleeve 5. The bushing outer sleeve 1 is made of plastic and has an outer sleeve boss structure 2. After the bushing is pressed into place, the outer sleeve boss structure 2 of the bushing outer sleeve 1 matches the groove of the subframe sleeve 5, which improves the pull-out force of the bushing from the subframe sleeve 5 and enhances the reliability of the parts.

[0023] In this design, the subframe bushing has a plastic bushing outer sleeve 1 and a metal outer tube 3 that are integrated into one unit through an assembly process.

[0024] During the process of pressing the bushing into the subframe sleeve 5, the outer boss structure 2 of the plastic outer sleeve 1 can undergo slight deformation to facilitate the pressing of the bushing into the subframe sleeve 5. After it is fully pressed into place, the plastic outer boss structure 2 will spring up and engage with the groove of the subframe sleeve 5.

[0025] This design leverages the deformability of plastic materials, allowing them to be used in automotive sub-bulb bushings, replacing metal outer tube bushings. This achieves lightweighting and cost reduction; simultaneously, by optimizing the structure, it avoids assembly cracking issues and improves assembly efficiency. Overall, this enhances the competitiveness of the part.

Claims

1. A hydraulic bushing structure for a plastic outer tube subframe, comprising a subframe bushing, characterized in that: The subframe bushing includes an inner bushing tube and a metal outer tube. The outer metal tube (3) is fitted on the outside of the inner bushing tube (4), and the outer bushing sleeve (1) is fitted on the outside of the metal outer tube (3). The metal outer tube (3) and the outer bushing sleeve (1) are integrated through an assembly process. Several outer sleeve boss structures (2) are provided on the outer edge of the outer bushing sleeve (1).

2. The hydraulic bushing structure for a plastic outer tube subframe according to claim 1, characterized in that: The aforementioned liner jacket (1) is made of plastic.

3. The hydraulic bushing structure for a plastic outer tube subframe according to claim 1, characterized in that: The bushing jacket (1) and several jacket boss structures (2) are integrally formed.

4. A hydraulic bushing structure for a plastic outer tube subframe according to claim 1 or 3, characterized in that: The outer jacket boss structure (2) is a long strip structure, and several long strip structures are arranged horizontally on the outer edge of the bushing jacket (1).

5. A hydraulic bushing structure for a plastic outer tube subframe according to claim 1 or 3, characterized in that: The number of the outer jacket boss structure (2) is 3 to 6.

6. The hydraulic bushing structure for a plastic outer tube subframe according to claim 1, characterized in that: The subframe bushing is press-fitted into the subframe sleeve (5), and the outer boss structure (2) of the subframe bushing matches the groove of the subframe sleeve (5).

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