Secondary vulcanized air spring top rubber
By using a secondary vulcanization connection between the rubber sleeve and the ring support, the problem of the metal outer sleeve affecting the durability of the top rubber and assembly is solved, achieving higher assembly accuracy and stability of rigidity performance, and avoiding the generation of outer sleeve diameter reduction and burrs.
Patent Information
- Application Number
- CN202520438319.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The existing metal jacket of the top adhesive may affect the durability and assembly of the top adhesive, causing the jacket to shrink in diameter and produce burrs, thus affecting performance and assembly accuracy.
The first vulcanization connection is achieved using a rubber sleeve and a ring support. The outer sleeve is made of plastic and coated with adhesive. The second vulcanization is performed by injection molding through a mold to ensure a stable connection between the rubber sleeve and the outer sleeve.
It avoids the shrinkage and burrs of the outer sleeve, improves assembly accuracy and durability, enhances rigidity performance, ensures the connection stability between the rubber sleeve and the outer sleeve, and reduces geometric changes caused by environmental changes.
Smart Images
Figure CN223825497U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of air spring especially relates to a secondary vulcanization's air spring top glue. BACKGROUND
[0002] The top glue is an important component of the shock absorber support small assembly in the air spring assembly, and is widely used in shock absorbers; it can bear load, filter and attenuate some high-frequency small-amplitude vibrations in tires, shock absorbers and air springs.
[0003] The traditional top glue is made of two processes: one is the scheme of inner support and rubber vulcanization, which forms a groove between the inner support and the rubber, but the groove has a low rigidity performance, and the rigidity of the rubber material may change greatly in long-term use, affecting the performance of the entire top glue.
[0004] Another way is to add a metal tubular sleeve to the outside of the rubber, which can improve the rigidity of the rubber and increase its performance, but after adding the sleeve, the inner support and the rubber will shrink after vulcanization, the rubber and the sleeve will shrink, the adhesion between the rubber and the sleeve will have a radial force and an axial force, the durability between the sleeve and the rubber will be reduced, affecting the performance of the top glue, so the sleeve needs to be shrunk, but after the sleeve is shrunk, the surface of the sleeve may have burrs and size changes, which may cause assembly problems. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problem of providing a secondary vulcanization air spring top glue to solve the problem of the metal sleeve of the existing top glue affecting the durability and assembly of the top glue.
[0006] Based on the technical problems in the background art, the utility model provides a secondary vulcanization air spring top glue, which comprises a rubber sleeve, a ring support and a cylindrical sleeve, the ring support is coaxially installed in the rubber sleeve and is vulcanization connected, and the rubber sleeve is coaxially installed in the sleeve and is vulcanization connected.
[0007] Preferably, the sleeve is made of plastic material.
[0008] Preferably, the inner surface of the sleeve is coated with an adhesive.
[0009] Preferably, when the ring support is assembled in the rubber sleeve, the first vulcanization is performed.
[0010] Preferably, when the rubber sleeve is assembled in the sleeve, it is put into a fixed mold for the second vulcanization.
[0011] Preferably, the outer casing is injection molded.
[0012] Preferably, the edge of the outer garment is an inwardly rolled edge.
[0013] Compared with the prior art, the secondary vulcanized air spring top rubber proposed in this utility model adopts the above technical solution and achieves the following technical effects:
[0014] This invention can eliminate deformation and burrs caused by the shrinkage of the outer jacket, improve the matching degree during assembly, reduce the impact on the assembly air chamber, and improve the stability of durability and rigidity performance. Radial tension is avoided between the outer jacket and the rubber sleeve, which can improve the durability, rigidity and stability of the top rubber. The secondary vulcanization in this application can avoid deformation of the outer jacket, while increasing the connection rigidity between the outer jacket and the rubber sleeve, ensuring the consistency and stability of the rubber bushing size, and reducing geometric changes caused by environmental or usage conditions. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the ring support structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the outer casing structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the first vulcanization of the rubber sleeve and ring support of this utility model.
[0018] Figure 4 This is a schematic diagram of the secondary vulcanization process for the rubber sleeve and outer sleeve of this utility model.
[0019] In the diagram: 1. Rubber sleeve; 2. Ring support; 3. Outer sleeve; 31. Inward rolled edge. Detailed Implementation
[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0022] Example
[0023] Please refer to Figures 1-4 This utility model proposes a secondary vulcanized air spring top rubber, including a rubber sleeve 1, a ring support 2, and a cylindrical outer sleeve 3. The rubber sleeve 1 is an annular rubber sleeve 1. The ring support 2 is installed inside the rubber sleeve 1, making the ring support 2 and the rubber sleeve 1 coaxial, and directly performing the first vulcanization connection. Then, it is installed as a whole inside the outer sleeve 3 for the second vulcanization, so that the outer sleeve 3 and the rubber sleeve 1 can be vulcanized and connected, while the rubber sleeve 1 and the outer sleeve 3 remain coaxial.
[0024] In a specific embodiment, refer to Figure 2 , Figure 4 The outer sleeve 3 is made of plastic. In this application, the material of the outer sleeve 3 affects its performance. When the outer sleeve 3 is made of plastic, it can produce a certain diameter reduction effect through vulcanization, so that the outer sleeve 3 and the rubber sleeve 1 can be better connected. At the same time, the outer dimensions of the outer sleeve 3 can be shaped by high temperature, which can avoid changes in the outer dimensions of the outer sleeve 3, thereby making the installation dimensions of the top rubber more compatible.
[0025] In a specific embodiment, refer to Figure 1 The inner surface of the outer jacket 3 is coated with an adhesive; the adhesive used in this solution is Lord adhesive, which is used to increase the adhesion between the outer jacket 3 and the rubber sleeve 1.
[0026] In a specific embodiment, refer to Figure 3 When the ring support 2 is assembled inside the rubber sleeve 1, the first vulcanization is performed. In this scheme, the purpose of the first vulcanization is to enable the ring support 2 to be connected with the rubber sleeve 1 to form an integral unit inside the rubber sleeve 1.
[0027] In a specific embodiment, refer to Figure 4 When the rubber sleeve 1 is assembled inside the outer sleeve 3, it is placed in a fixed mold for a second vulcanization. In this solution, the second vulcanization allows the outer surface of the rubber sleeve 1 to be connected to the inner wall of the outer tire, achieving an integrated effect.
[0028] In a specific embodiment, refer to Figure 2The outer jacket 3 is made by injection molding; the outer jacket 3 is made of plastic and can be plasticized at high temperature, which can fix the size of the outer jacket 3 and improve the pass rate of the top adhesive.
[0029] In a specific embodiment, refer to Figure 2 The edge of the outer sleeve 3 is an inwardly rolled edge 31, which makes it easy for the rubber sleeve 1 to be installed into the outer shell.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A secondary vulcanized air spring top adhesive, characterized in that, It includes a rubber sleeve (1), a ring support (2) and a cylindrical outer sleeve (3). The ring support (2) is located inside the rubber sleeve (1), coaxially installed and vulcanized with the rubber sleeve (1). The rubber sleeve (1) is located inside the outer sleeve (3), coaxially installed and vulcanized with the outer sleeve (3).
2. The secondary vulcanized air spring top rubber according to claim 1, characterized in that, The outer cover (3) is made of plastic.
3. The secondary vulcanized air spring top rubber according to claim 1, characterized in that, The inner surface of the outer jacket (3) is coated with an adhesive.
4. The secondary vulcanized air spring top rubber according to claim 1, characterized in that, When the ring support (2) is assembled inside the rubber sleeve (1), the first vulcanization is performed.
5. The secondary vulcanized air spring top rubber according to claim 1, characterized in that, When the rubber sleeve (1) is assembled inside the outer sleeve (3), it is placed in a fixed mold for a second vulcanization.
6. The secondary vulcanized air spring top rubber according to claim 1, characterized in that, The outer jacket (3) is made by injection molding.
7. The secondary vulcanized air spring top rubber according to claim 1, characterized in that, The edge of the outer garment (3) is an inwardly rolled edge (31).