Rubber damper for shafts

Abstract

The utility model belongs to rubber shock absorber technical field, concretely relates to a rubber shock absorber for axle body, including base, gasket, rubber body, upper cover and connecting shaft. The clearance is established between base and upper cover, and the rubber body is installed in the clearance and is connected on the connecting shaft. The coaxial arrangement of each component is arranged, and the base and the upper cover are in the shape of an arch bridge, the base is equipped with the mounting hole, and the connecting shaft is equipped with the screw thread. The structure absorbs the vibration through the elastic deformation of the rubber body, has the advantages such as compact structure, convenient installation, good damping effect, wide adaptability, stable operation, etc, and is suitable for the damping demand of various shafting transmission equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of rubber shock absorbers, specifically relating to a rubber shock absorber for a shaft. Background Technology

[0002] In mechanical equipment, vehicles, ships, and industrial transmission systems, shafts often experience vibration and impact during operation due to load changes, speed fluctuations, or external excitations. These vibrations not only affect the smoothness and precision of equipment operation but also lead to fatigue damage of components, increased noise, and shortened service life. Traditional vibration damping methods often employ metal springs or rigid connections, which, while providing some damping, often perform poorly under high-frequency vibrations, impact loads, and limited installation space. Rubber materials, due to their excellent elasticity, damping characteristics, and deformation recovery ability, are widely used in vibration damping. However, existing rubber vibration dampers have relatively simple structures, often lack coordinated control of axial and radial vibrations, have insufficient installation stability, and poor adaptability to different operating conditions. Therefore, there is an urgent need for a rubber vibration damper with a reasonable structure, convenient installation, significant vibration damping effect, and suitability for various shaft system environments. Utility Model Content

[0003] The purpose of this invention is to provide a rubber shock absorber that is compact in structure, easy to install, has good shock absorption effect, and is suitable for various shaft system environments.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rubber shock absorber for a shaft includes a base, a gasket, a rubber body, a top cover, and a connecting shaft.

[0006] The base is fitted onto the bottom of the connecting shaft, and the top cover is fitted onto the top of the connecting shaft, with a certain gap between them; the rubber body is installed within this gap and fitted onto the connecting shaft. All components are arranged coaxially to ensure the uniformity and stability of load transmission.

[0007] In a further embodiment, the base and the top cover are in the shape of an arch bridge, which not only enhances the overall rigidity but also facilitates arrangement and stress distribution within a limited space.

[0008] In another embodiment, the base is provided with mounting holes on both sides, which facilitates fixing it to the equipment base with bolts, thereby improving the stability and alignment of the installation.

[0009] In another embodiment, the connecting shaft is provided with internal threads, which can be used to connect to an external shaft or load to achieve axial positioning and transmission.

[0010] In another embodiment, the gasket is located between the base and the connecting shaft to adjust the axial clearance, prevent direct metal-to-metal contact, and provide a certain degree of buffering and sealing.

[0011] Beneficial effects:

[0012] 1. Compact structure and easy installation: It adopts a coaxial design and modular components, which facilitates assembly and disassembly and is suitable for installation environments with limited space.

[0013] 2. Excellent shock absorption: The rubber body is located between the top cover and the base, which can effectively absorb axial and radial vibrations and reduce the impact load transmitted to the equipment.

[0014] 3. High adaptability: By replacing the rubber body with different hardness or shape, it can adapt to vibration conditions with different frequencies and amplitudes.

[0015] 4. High stability: The arched design of the base and top cover enhances the overall rigidity, and the mounting holes and internal threads of the connecting shaft provide multiple fixing methods to ensure reliability during long-term operation.

[0016] 5. Long service life: The rubber body is protected by the top cover and base, avoiding direct exposure to the external environment, delaying aging and improving durability. Attached Figure Description

[0017] Figure 1 This is an isometric drawing of this utility model.

[0018] Figure 2 This is the front view of this utility model.

[0019] Figure 3 This is a top view of the present invention.

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] Reference numerals in the attached diagram: 1. Base; 2. Gasket; 3. Rubber body; 4. Top cover; 5. Connecting shaft; 6. Mounting hole; 7. Thread. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Example 1

[0026] This embodiment provides a rubber shock absorber for a shaft, such as Figures 1 to 4 As shown, the assembly includes a base 1, a gasket 2, a rubber body 3, a top cover 4, and a connecting shaft 5. During assembly, first place the gasket 2 in the center hole of the base 1, then pass the connecting shaft 5 through the gasket 2 and the base 1; next, fit the rubber body 3 onto the middle of the connecting shaft 5, and finally install the top cover 4, confining the rubber body 3 within the gap between the top cover 4 and the base 1. The mounting holes 6 on both sides of the base 1 can be bolted to the equipment base, and the threads 7 inside the connecting shaft 5 are used to connect the drive shaft.

[0027] Example 2

[0028] In another embodiment, such as Figures 1 to 4 As shown, the rubber body 3 can adopt different cross-sectional shapes, such as cylindrical, trapezoidal, or multi-layered composite structures, to adjust the stiffness and damping characteristics of the shock absorber. The base 1 and the top cover 4 can also be designed as planar or ribbed structures to enhance local stiffness.

[0029] Example 3

[0030] To further adapt to high-frequency vibration environments, such as Figures 1 to 4 As shown, corrugations or grooves can be provided on the surface of the rubber body 3 to increase deformation capacity and heat dissipation. The connecting shaft 5 can adopt a stepped shaft structure for easy axial positioning and assembly.

[0031] Working principle:

[0032] When the shaft vibrates, the vibration is transmitted to the rubber body 3 through the connecting shaft 5. Under stress, the rubber body 3 undergoes elastic deformation, converting mechanical energy into heat energy and gradually dissipating it, thereby reducing the vibration amplitude transmitted to the base 1 and the equipment. The constraint effect of the upper cover 4 and the base 1 limits excessive deformation of the rubber body 3, while the arch-shaped structure enhances the overall load-bearing capacity and stability. The presence of the gasket 2 avoids direct collisions between metal parts, further reducing noise and wear.

[0033] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A rubber shock absorber for a shaft, characterized in that, include: Base, gasket, rubber body, top cover, and connecting shaft; The base is sleeved on the bottom of the connecting shaft, the top cover is sleeved on the top of the connecting shaft, and there is a gap between the top cover and the base. The rubber body is installed on the connecting shaft and located in the gap between the top cover and the base.

2. The rubber shock absorber for a shaft according to claim 1, characterized in that, The base and the top cover are in the shape of an arch bridge.

3. The rubber shock absorber for a shaft according to claim 1, characterized in that, The base has mounting holes on both sides.

4. The rubber shock absorber for a shaft according to claim 1, characterized in that, The connecting shaft has internal threads.

5. A rubber shock absorber for a shaft according to claim 1, characterized in that, The gasket is installed between the base and the connecting shaft.

6. A rubber shock absorber for a shaft according to claim 1, characterized in that, The base, the gasket, the rubber body, the top cover, and the connecting shaft are arranged coaxially.

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