Hydraulic bushing vulcanization structure and automobile

By setting the main spring rubber and limit rubber on the inner casing and flow channel plate of the hydraulic bushing, and connecting them through pitted friction, the problem of abnormal noise caused by improper structural design of the hydraulic bushing is solved and better NVH is achieved. performance and simplified vulcanization process.

CN222377089UActive Publication Date: 2025-01-21BAIC MOTOR CORP LTD
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Patent Information

Application Number
CN202421265268.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2025-01-21
Estimated Expiration
2034-06-04

AI Technical Summary

Technical Problem

The improper design of the existing hydraulic bushing structure leads to abnormal noise problems, affecting the comfort and NVH performance of the car.

Method used

Design a hydraulic bushing vulcanization structure. By setting the main spring rubber and the limit rubber respectively on the inner casing and the flow channel plate, and frictionally connecting them through pitting, the friction resistance is reduced, the abnormal sound is reduced, and complicated problems are avoided. Dual rubber vulcanization process, separate vulcanization to reduce process difficulty and cost.

Benefits of technology

It effectively reduces friction contact abnormal noise, improves the performance of hydraulic bushings, simplifies the vulcanization process, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydraulic bushing vulcanization structure and an automobile, the hydraulic bushing vulcanization structure comprises an outer sleeve and a runner plate, the outer circumference of the runner plate is connected with the inner circumference of the outer sleeve, the inner circumference of the runner plate is provided with limiting rubber and an inner sleeve, the inner sleeve is sleeved with main spring rubber, the main spring rubber is provided with pocks, and the pocks are arranged in the runner plate. According to the hydraulic bushing vulcanization structure, the main spring rubber and the limiting rubber are arranged on the inner sleeve and the runner plate respectively, so that the main spring rubber is in point contact with the limiting rubber through the hard spots, the frictional resistance is reduced, the abnormal sound of frictional contact is reduced, and an existing complex double-rubber-material vulcanization process is avoided; the main spring rubber and the limiting rubber can be separately vulcanized, and the difficulty and the cost of the vulcanization process are reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of automobile hydraulic bushing vulcanization structures, and more specifically relates to a hydraulic bushing vulcanization structure and an automobile. Background Art

[0002] In today's society, as people's living standards improve, comfort and NVH performance have become the primary considerations when people buy cars. In order to reduce the transmission of road vibration to the car, hydraulic bushings are used to connect the control arm and subframe, and the vibration transmission path between the subframe and the car body during chassis design to filter low-frequency, large-amplitude vibrations and reduce road noise, further improving the comfort and NVH performance of the vehicle. However, this also brings some failure modes such as abnormal noise caused by improper hydraulic bushing structure design. Therefore, it is necessary to improve the hydraulic bushing structure to avoid abnormal noise. Utility Model Content

[0003] The utility model aims to provide a hydraulic bushing vulcanization structure to solve the problem of abnormal noise caused by improper design of the hydraulic bushing structure in view of the deficiencies in the prior art.

[0004] In order to achieve the above object, the utility model provides a hydraulic bushing vulcanization structure, comprising:

[0005] Outer sleeve;

[0006] A flow channel plate, the outer periphery of which is connected to the inner periphery of the outer sleeve, and a limiting rubber is provided on the inner periphery of the flow channel plate;

[0007] An inner sleeve is provided with a main spring rubber, the main spring rubber is provided with pits, and the main spring rubber is frictionally connected with the limit rubber through the pits.

[0008] Optionally, the pits are cone-shaped.

[0009] Optionally, the pockmarks are distributed in an array.

[0010] Optionally, grooves or convex ribs are provided on the limiting rubber.

[0011] Optionally, the groove is in a strip shape and is arranged along the axial direction of the inner sleeve.

[0012] Optionally, both ends of the groove are open.

[0013] Optionally, the main spring rubber and the inner sleeve are vulcanized and formed integrally.

[0014] Optionally, the flow channel plate and the limiting rubber are integrally vulcanized.

[0015] Optionally, the flow channel plate is C-shaped.

[0016] A car, comprising:

[0017] The above-mentioned hydraulic bushing vulcanization structure.

[0018] The utility model provides a hydraulic bushing vulcanization structure, which has the following beneficial effects:

[0019] The hydraulic bushing vulcanization structure arranges the main spring rubber and the limit rubber on the inner sleeve and the flow channel plate respectively, so that the main spring rubber contacts the limit rubber through the pits, which not only reduces the friction resistance and the abnormal noise of the friction contact, but also avoids the existing complicated double-rubber vulcanization process, so that the main spring rubber and the limit rubber can be vulcanized separately, reducing the difficulty and cost of the vulcanization process.

[0020] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0022] Figure 1 An exploded view of a hydraulic bushing vulcanization structure according to an embodiment of the utility model is shown.

[0023] Description of reference numerals:

[0024] 1. Outer sleeve; 2. Runner plate; 3. Limit rubber; 4. Main spring rubber; 5. Inner sleeve. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0026] like Figure 1 As shown, a hydraulic bushing vulcanization structure comprises:

[0027] Outer sleeve 1;

[0028] A flow channel plate 2, the outer periphery of the flow channel plate 2 is connected to the inner periphery of the outer sleeve 1, and a limiting rubber 3 is provided on the inner periphery of the flow channel plate 2;

[0029] The inner sleeve 5 is sleeved with a main spring rubber 4, which is provided with pits. The main spring rubber 4 is frictionally connected with the limit rubber 3 through the pits.

[0030] Specifically, by arranging the main spring rubber 4 and the limit rubber 3 on the inner sleeve 5 and the flow channel plate 2 respectively, the main spring rubber 4 is in contact with the limit rubber 3 through the pits, which not only reduces the friction resistance and the abnormal noise of friction contact, but also avoids the existing complex double-rubber vulcanization process, so that the main spring rubber 4 and the limit rubber 3 can be vulcanized separately, reducing the difficulty and cost of the vulcanization process.

[0031] In this embodiment, the pits are cone-shaped.

[0032] Specifically, the cone-shaped tip contacts are used to reduce the contact area and the friction resistance.

[0033] In this embodiment, the pockmarks are distributed in an array.

[0034] In this embodiment, grooves or convex ribs are provided on the limiting rubber 3 .

[0035] Specifically, the limiting rubber 3 makes line contact with the main spring rubber 4 through the groove or the convex rib to reduce friction resistance.

[0036] In this embodiment, the groove is in a strip shape and is arranged along the axial direction of the inner sleeve 5 .

[0037] Specifically, the pits and the grooves can cooperate with each other to limit and reduce friction resistance.

[0038] In this embodiment, both ends of the groove are open.

[0039] In this embodiment, the main spring rubber 4 and the inner sleeve 5 are integrally vulcanized.

[0040] In this embodiment, the flow channel plate 2 and the limiting rubber 3 are integrally vulcanized and formed.

[0041] Specifically, the main spring rubber 4 and the limit rubber 3 are divided into two parts and separately subjected to traditional vulcanization treatment, which can effectively reduce the difficulty of the vulcanization process and reduce the cost of the vulcanization mold.

[0042] In this embodiment, the flow channel plate 2 is C-shaped.

[0043] Specifically, an opening is provided through a C-shaped structure to adapt to assembly use.

[0044] A car, comprising:

[0045] The above-mentioned hydraulic bushing vulcanization structure.

[0046] When the hydraulic bushing vulcanization structure of this embodiment is used, taking assembly as an example, the limit rubber 3 and the flow channel plate 2 are vulcanized together, the main spring rubber 4 and the inner sleeve 5 are vulcanized together, and then the inner sleeve 5 and the flow channel plate 2 are assembled together and pressed into the outer sleeve 1 as a whole.

[0047] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A hydraulic bushing vulcanization structure, characterized in that: include: Outer sleeve; A flow channel plate, the outer periphery of which is connected to the inner periphery of the outer sleeve, and a limiting rubber is provided on the inner periphery of the flow channel plate; An inner sleeve is provided with a main spring rubber, the main spring rubber is provided with pits, and the main spring rubber is frictionally connected with the limit rubber through the pits.

2. A hydraulic bushing vulcanization structure according to claim 1, characterized in that: The pits are cone-shaped.

3. A hydraulic bushing vulcanization structure according to claim 1, characterized in that: The pockmark array is distributed.

4. A hydraulic bushing vulcanization structure according to claim 1, characterized in that: The limiting rubber is provided with grooves or convex ribs.

5. A hydraulic bushing vulcanization structure according to claim 4, characterized in that: The groove is in strip shape and is arranged along the axial direction of the inner sleeve.

6. A hydraulic bushing vulcanization structure according to claim 5, characterized in that: Both ends of the groove are open.

7. A hydraulic bushing vulcanization structure according to claim 1, characterized in that: The main spring rubber and the inner sleeve are integrally vulcanized and formed.

8. The hydraulic bushing vulcanization structure according to claim 1, characterized in that: The flow channel plate and the limiting rubber are integrally vulcanized and formed.

9. The hydraulic bushing vulcanization structure according to claim 1, characterized in that: The flow channel plate is C-shaped.

10. An automobile, characterized in that: include: A hydraulic bushing vulcanization structure according to any one of claims 1-9.