Laminated shaft sleeve shock absorber capable of effectively balancing stress
By setting multiple damping layers in the laminated bushing damper and setting staggered balance holes on the liner, the problem of uneven internal stress in the laminated bushing damper is solved, thus achieving stress balance and improving mechanical performance.
Patent Information
- Application Number
- CN202422537792.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-21
AI Technical Summary
During the manufacturing process of the laminated bushing shock absorber, the imbalance of the rubber materials in each layer leads to uneven internal stress, resulting in deformation of the bushing and large fluctuations in mechanical properties.
Multiple damping layers are installed between the outer side of the inner tube and the liner, and multiple balance holes are provided on each liner. The balance holes are staggered to achieve the balance of internal stress, and the thickness of the damping layer decreases from the inside to the outside.
By designing the balancing holes, the internal stress of the laminated bushing damper is balanced, which improves the mechanical performance of the product and the reliability of the design.
Smart Images
Figure CN223178040U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorbers, in particular to a laminated bushing shock absorber that can effectively balance stress. Background Art
[0002] The bushing shock absorption applied to an automobile often reduces the vibration of the shaft by means of a bushing shock absorber, effectively solving the stress state of each component and improving the service life and safety of the automobile. When the vehicle is running, it is affected by uneven bumps on the road surface, which requires the bushing shock absorption to buffer. With different external forces acting, the stiffness curve can change according to the design requirements, which requires a bushing shock absorber with variable stiffness. In design, a multi-layer laminated method is often adopted to enable the external force to be transmitted layer by layer, so there is this laminated bushing shock absorber.
[0003] In the related art, a laminated bushing shock absorber generally includes an inner tube, the inner tube is hollow, and multiple layers of liner tubes are concentrically arranged at intervals around the outer side of the inner tube. A shock-absorbing layer with a shock-absorbing effect is provided between the liner tubes, between the liner tube and the inner tube, and on the outer side of the outermost liner tube. The shock-absorbing layer is usually a rubber layer.
[0004] During the manufacturing process of the laminated bushing shock absorber, it is necessary to inject rubber between the liner tubes, between the liner tube and the inner tube, and on the outer side of the outermost liner tube to form a shock-absorbing layer. For the middle metal liner tube, after the rubber compound is injected, it is difficult to balance the rubber compound injected into each layer. Therefore, the internal stress of the laminated bushing shock absorber is uneven, which will seriously cause the deformation of the liner tube and the uneven layer thickness, resulting in large fluctuations in the overall mechanical properties of the product. Summary of the Utility Model
[0005] Aiming at the problems in the related art, the present application discloses a laminated bushing shock absorber that can effectively balance stress, and solves the problem of uneven internal stress of the shock absorber caused by unbalanced rubber compounds in each layer during the manufacturing process of the laminated bushing shock absorber.
[0006] To achieve the above object, the present application provides the following technical solutions:
[0007] A laminated bushing shock absorber that can effectively balance stress includes an inner tube arranged at the center. A plurality of layers of liner tubes are concentrically arranged at intervals on the outer side of the inner tube. A shock-absorbing layer is provided on the outer side of the inner tube, between the liner tubes, and on the outer side of the outermost liner tube. Each layer of the liner tube is provided with a plurality of balance holes.
[0008] As a further solution of the present application: The balance holes on adjacent liner tubes are arranged in a staggered manner.
[0009] As a further solution of the present application: Each layer of the liner tube is provided with balance holes in four 90-degree directions in the radial direction.
[0010] As a further solution of the present application: the liner tubes are arranged with offset balance holes in the radial direction.
[0011] As a further solution of the present application: each layer of the liner tubes is provided with multiple layers of balance holes in the axial direction.
[0012] As a further solution of the present application: the thickness of the shock-absorbing layer decreases layer by layer from inside to outside.
[0013] As a further solution of the present application: four layers of liner tubes are concentrically arranged at intervals on the outer side of the inner tube.
[0014] In summary, the beneficial effects of the present application are as follows:
[0015] A laminated bushing shock absorber that can effectively balance stress, with multiple liner tubes concentrically arranged at intervals around the outer side of the inner tube. A shock-absorbing layer is provided between the outer side of the inner tube, between the liner tubes, and on the outermost liner tube. Each layer of the liner tube is provided with multiple balance holes, and the balance holes of the same layer or adjacent layers are all arranged in a staggered manner. On the premise that the axial and radial stiffness of the shock absorber remains basically unchanged, multiple balance holes are provided on the liner tube. When the raw material of the shock-absorbing layer is injected into the mold cavity, it is in a fluid state. Before vulcanization, the internal stress in each layer reaches a relatively balanced state through the balance holes, so that the laminated bushing shock absorber reaches the design expectation value, and the balance of the internal stress of the laminated bushing shock absorber is improved. Description of the Drawings
[0016] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application, and do not constitute a limitation to the present application.
[0017] In the drawings:
[0018] Figure 1 is a schematic cross-sectional structure diagram of the present application.
[0019] Figure 2 is a schematic top view structure diagram of the present application.
[0020] Figure 3 is a schematic three-dimensional structure diagram of two layers of liner tubes of the present application.
[0021] Annotation of the reference numerals:
[0022] 1. Inner tube; 2. Liner tube; 3. Shock-absorbing layer; 4. Balance hole; Detailed Embodiments
[0023] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects disclosed in the present embodiment as detailed in the appended claims.
[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0025] In addition, descriptions such as "first" and "second" in the embodiments are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present application. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0026] To further understand the content, features and effects of the present application, the following embodiments are exemplified and described in detail with reference to the accompanying drawings as follows:
[0027] As Figures 1 - 3 shown:
[0028] A laminated bushing shock absorber that can effectively balance stress includes an inner tube 1 disposed at the center. Four layers of liner tubes 2 are concentrically arranged at intervals outside the inner tube 1. Shock-absorbing layers 3 are provided outside the inner tube 1, between the liner tubes 2, and outside the outermost liner tube 2.
[0029] A plurality of balance holes 4 are provided on each layer of the liner tube 2. On the premise that the axial and radial stiffness of the shock absorber remains basically unchanged, a plurality of balance holes 4 are provided on the liner tube 2, and the internal stress in each layer is made to reach a relatively balanced state through the balance holes 4, so that the laminated bushing shock absorber reaches the design expected value and improves the balance of the internal stress of the laminated bushing shock absorber.
[0030] Preferably, four balance holes 4 are provided in each liner 2 in four 90-degree directions in the radial direction, the balance holes 4 on adjacent liners 2 are arranged in a staggered manner, the adjacent balance holes 4 on the liner 2 are arranged in a staggered manner in the radial direction, and multiple layers of balance holes 4 are provided in the axial direction of each liner 2.
[0031] As Figure 3 shown:
[0032] Four rows of balance holes 4 are provided in each liner 2 in four 90-degree directions in the radial direction, the balance holes 4 on adjacent liners 2 are arranged in a staggered manner, the adjacent balance holes 4 on the liner 2 are arranged in a staggered manner in the radial direction, and two or three layers of balance holes 4 are provided at intervals in the axial direction of each liner 2.
[0033] In addition, the thickness of the shock-absorbing layer 3 gradually decreases from the inside to the outside.
[0034] In practical applications:
[0035] A laminated bushing shock absorber that can effectively balance stress has multiple liners 2 concentrically arranged at intervals around the outer periphery of the inner tube 1. A shock-absorbing layer 3 is provided between the outer side of the inner tube 1, between the liners 2, and the outermost liner 2. Multiple balance holes 4 are provided on each liner 2, and the balance holes 4 in the same layer or adjacent layers are all arranged in a staggered manner. On the premise that the axial and radial stiffness of the shock absorber remain basically unchanged, multiple balance holes 4 are provided on the liner 2. When the raw material of the shock-absorbing layer 3 is injected into the mold cavity, it is in a fluid state. Before vulcanization, the internal stress in each layer reaches a relatively balanced state through the balance holes 4, so that the laminated bushing shock absorber reaches the design expectation value and improves the balance of the internal stress of the laminated bushing shock absorber.
[0036] The key points for injection molding of this bushing shock absorber are as follows:
[0037] 1. The rubber Mooney viscosity is relatively low;
[0038] 2. The vulcanization time T10 of the rubber material should be controlled within a certain range;
[0039] 3. The injection force should be controlled within a certain range;
[0040] 4. The aperture of the balance hole 4 is related to the amount of rubber compound used in the product, and the amount of rubber compound is proportional to the aperture.
[0041] Finally, it should be noted that the above disclosure is only the preferred embodiment of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. The scope of the present application is only limited by the appended claims.
Claims
1. A laminated bushing shock absorber capable of effectively balancing stress, comprising an inner tube (1) arranged at the center, a plurality of layers of liner tubes (2) are concentrically arranged at intervals on the outer side of the inner tube (1), a shock-absorbing layer (3) is arranged on the outer side of the inner tube (1), between the liner tubes (2) and on the outer side of the outermost liner tube (2), and is characterized in that: A plurality of balance holes (4) are provided on each layer of the liner tube (2).
2. The laminated bushing shock absorber capable of effectively balancing stress according to claim 1, wherein: The balance holes (4) on adjacent liner tubes (2) are arranged in a staggered manner.
3. A laminated bushing shock absorber capable of effectively balancing stress according to claim 1, characterized in that: On each layer of the liner tube (2), balance holes (4) are arranged in four 90-degree directions in the radial direction.
4. The laminated bushing shock absorber capable of effectively balancing stress according to claim 3, wherein: The adjacent balance holes (4) of the liner tube (2) are arranged in a staggered manner in the radial direction.
5. A laminated bushing shock absorber capable of effectively balancing stress according to claim 1, characterized in that: On each layer of the liner tube (2), multiple layers of balance holes (4) are provided in the axial direction.
6. The laminated bushing shock absorber capable of effectively balancing stress according to claim 1, wherein: The thickness of the shock-absorbing layer (3) gradually decreases layer by layer from the inside to the outside.
7. A laminated bushing shock absorber capable of effectively balancing stress according to claim 1, characterized in that: Four layers of liner tubes (2) are concentrically arranged at intervals on the outside of the inner tube (1).