Multi-frequency vibration attenuation tuned mass damper

Abstract

The utility model discloses a multi-frequency vibration damping tuned mass damper which comprises an assembly mounting plate, a vibration damping device base, an elastic body, a mass block and a clamping block. The assembly mounting plate is fixed outside the equipment, the tuned mass dampers are distributed on the assembly mounting plate, and different types and different numbers of tuned mass dampers can be arranged according to the vibration conditions of different frequencies of the equipment. The device has the advantages that the tuned mass dampers are arranged in a distributed mode, multi-frequency vibration can be solved, vibration of the device is reduced through tuning energy absorption and damping energy consumption of the tuned mass dampers, and the problem that vibration is violent due to multi-frequency vibration of the device is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibration reduction, and in particular relates to a multi-frequency vibration reduction tuned mass damper. Background Art

[0002] Multi-frequency vibration is a common problem in various engineering structures and mechanical systems. When these systems are stimulated by multiple frequency components, they can generate multi-frequency vibrations. This vibration can cause fatigue and damage to the structure or machinery, even affecting its normal operation and service life, posing a safety hazard. Therefore, specialized vibration damping devices are required for vibration reduction. Existing multi-frequency vibration damping devices are installed on the equipment itself, which is not conducive to post-production expansion.

[0003] Patent application number CN202311539940.3 is a variable damping tuned mass damper and construction method, including a top plate, a bottom plate, a mass block, several elastic elements, a guide assembly, an eddy current damper assembly, and a position adjustment assembly. The top plate and the bottom plate are arranged relative to each other, the mass block is fixedly arranged on the bottom plate, and a connecting portion is provided around the mass block. The several elastic elements are arranged between the bottom plate and the connecting portion. The guide assembly is inserted into the elastic element, one end is fixedly connected to the bottom plate, and the other end moves through the connecting portion and is fixedly connected to the top plate. The eddy current damper assembly includes a permanent magnet, a conductor plate and a bracket. The permanent magnet is fixedly arranged in the middle of the side wall of the mass block. The conductor plate is arranged relative to the permanent magnet and is connected to the position adjustment assembly through the bracket. The position adjustment assembly can move the conductor plate relative to the permanent magnet to adjust the damping size. Through field testing and reasonable damping design, the vibration reduction effect of the damper is greatly improved. The above device is complicated to install and difficult to adjust quickly according to demand. Therefore, it is urgent for those skilled in the art to solve the above technical problems. Summary of the Invention

[0004] The utility model provides a multi-frequency vibration reduction tuned mass damper in order to solve the problem that the above-mentioned device is complicated to install and difficult to adjust quickly according to demand.

[0005] The technical solutions adopted in this utility model are:

[0006] A multi-frequency vibration-damping tuned mass damper includes an assembly mounting plate and a vibration-damping device; the vibration-damping device includes a vibration-damping device base, an elastic body, a mass block, and fasteners; the assembly mounting plate is fixed to the equipment by a clamping block, the elastic body is installed between the vibration-damping device base and the mass block, and the vibration-damping device base and the assembly mounting plate are connected by fasteners.

[0007] Furthermore, the vibration damping devices (2) are provided on the assembly mounting plate (1) in number A.

[0008] Increasing the number of vibration damping devices can improve the vibration damping capacity of the overall system. Multiple devices can be tuned for different frequencies to ensure that the entire equipment can be effectively damped in multiple vibration modes. If the vibration energy on a large device is shared by multiple vibration damping devices, the load on each device will be reduced, which can extend the service life of a single device and reduce the risk of failure. By adjusting the number of A, the vibration characteristics of a specific device can be optimized. For example, if the vibration of the equipment is more severe in certain areas, the number of vibration damping devices can be increased at these key points. In critical applications, additional vibration damping devices can serve as a backup. Even if one of the devices fails, the other devices can still provide the necessary vibration damping effect to maintain the normal operation of the equipment. Multiple vibration damping devices allow for more precise control and fine-tuning to achieve the best vibration damping effect. This can be achieved by adjusting the mass of the different devices, the stiffness of the elastic body, or other parameters.

[0009] Furthermore, the elastic body is an integrated structure.

[0010] The one-piece structure means that the elastomer exists as a single component, which makes the installation process easier, reduces the number of assembly steps and the number of parts required, and also simplifies the maintenance and replacement process. The one-piece structure reduces seams and connection points, which are usually weak links in the structure. By eliminating these potential failure points, the one-piece elastomer can improve the reliability and durability of the overall device. Since there are no connections between multiple parts, the one-piece elastomer can more effectively absorb and disperse vibrations, preventing vibrations from being amplified or resonating at the connection points, thereby providing better vibration reduction. The one-piece design enables engineers to more precisely control the properties and shape of the material during the manufacturing process, ensuring that the elastomer has the required elastic modulus and damping characteristics to accurately match the vibration frequency of the equipment. The one-piece structure reduces the number of parts required in the production process and assembly time, which may reduce manufacturing costs. In addition, due to its higher reliability, maintenance and replacement costs may also be lower.

[0011] Furthermore, the elastic body is a combined structure.

[0012] Modular structures allow for the use of a combination of different materials, each with its own unique physical and chemical properties, such as high elasticity, high strength, resistance to high or low temperatures, and corrosion resistance. This diversity enables elastomers to meet more complex performance requirements. By carefully designing the arrangement and proportion of each layer of material, the stiffness, damping coefficient, and response speed of the elastomer can be customized to match it with a specific vibration frequency, thereby improving the vibration reduction effect. Composite materials often have a higher strength-to-weight ratio and durability than single materials, which means that elastomers with modular structures can withstand greater stress and strain and extend their service life. The choice of composite materials can be optimized according to the expected working environment, such as maintaining good performance under extreme temperature conditions or providing protection in corrosive environments. Modular structures allow the use of lighter materials while ensuring performance.

[0013] Furthermore, the elastic body is a metal spring, TPE, rubber, metal rubber or steel wire rope.

[0014] Metal springs can provide high stiffness and stability, suitable for carrying heavy loads and high-frequency vibrations. Within the elastic range, the response of metal springs is linear, easy to predict and design. Metal materials generally have high durability and long service life, suitable for applications in harsh environments. TPE has good flexibility and elastic recovery ability, suitable for low to medium frequency vibrations. Many TPE materials can be recycled to reduce environmental pollution. Rubber materials have high internal damping and can effectively absorb vibration energy. The hardness of rubber can range from very soft to quite hard, and the appropriate hardness can be selected according to the specific application. It combines the advantages of metal and rubber, has the rigidity and stability of metal, and the damping and elasticity of rubber. It performs well in high temperature or chemical corrosion environments and is suitable for special working conditions. Wire rope has high tensile strength and is suitable for vibration isolation under tension. It can bend and twist, suitable for vibration reduction applications that require flexibility. With proper maintenance, wire rope has a long service life

[0015] Furthermore, the mass block is an integrated structure.

[0016] A one-piece structure is generally stronger than an assembled structure because it reduces seams and connection points, which can be structural weak links. This means that a one-piece mass can withstand greater forces and stresses without deformation or damage. When a mass is made up of multiple components connected by bolts, welding or other means, these connections can become additional sources or paths of vibration. The one-piece structure eliminates these connections, thereby reducing the unintended transfer of vibration energy. The one-piece design means that during the manufacturing and installation process, there is no need to align and fix multiple independent components, which greatly simplifies the assembly process, reduces the risk of error, and saves time and costs. Since there are no moving parts, the mass of the one-piece structure will not fail due to loose bolts or component wear, which improves the reliability and life of the entire system.

[0017] Furthermore, the mass block is a combined structure.

[0018] Furthermore, the clamping block is an integrated structure or a combined structure, and the clamping block fixes the vibration damping device to the equipment by bolt connection, pressing or snapping.

[0019] The one-piece structure means that the clamping block is a complete unit and does not require on-site assembly, which simplifies the installation process and reduces the risk of installation errors. It also facilitates subsequent maintenance and replacement. The one-piece clamping block reduces the number of connection points, avoids structural instability caused by loose or worn connection points, and improves the rigidity and reliability of the entire vibration reduction system. By reducing the joints between components, the one-piece clamping block can reduce the transmission of vibration through the joints, thereby improving the damping effect. The one-piece design usually reduces material waste and manufacturing costs, and due to its simple structure, the installation and maintenance costs are also relatively low. The modular structure allows the use of a combination of different materials, which can be customized according to the design. The most suitable material is selected according to the specific needs of the equipment, such as enhanced strength, corrosion resistance or thermal stability. By using different materials in different parts, the composite clamping block can be optimized for key performance indicators, such as using high-friction materials on the contact surface to increase grip, and using high-strength materials in areas with high force. The combined structure can more easily adapt to the different shapes and sizes of equipment, providing a tighter fit and more stable fixation. Embedding shock-absorbing materials such as rubber or elastic polymers in the clamping block can further reduce vibration transmission and improve the damping effect. Partial damage to the composite clamping block can replace only the damaged part instead of the entire clamping block, reducing maintenance costs.

[0020] Furthermore, the assembly mounting plate is a mounting portion of the equipment or a separate plate structure, and the vibration damping device is fixed to the assembly mounting plate by fasteners, or is directly fixed to the equipment.

[0021] The assembly mounting plate can be part of the equipment itself or a stand-alone plate-type structure, which means it can be designed to adapt to a variety of different types of equipment and structures, whether existing equipment or newly designed equipment. When the assembly mounting plate is a stand-alone plate-type structure, the vibration damping device can be easily installed and removed using fasteners, which not only simplifies the installation process but also makes maintenance and replacement more convenient. The independent assembly mounting plate can reduce the need for modification to the original structure of the equipment, which means that the original design of the equipment will not be damaged or its performance will be reduced when the vibration damping device is installed. The assembly mounting plate provides a stable foundation for supporting and fixing the vibration damping device, which helps to improve the stability and reliability of the entire system. Because the assembly mounting plate can be distributed in different parts of the equipment, the vibration damping device can be precisely positioned near the vibration source, thereby more effectively absorbing and reducing vibration. The assembly mounting plate can be designed to accommodate different numbers and types of vibration damping devices, which allows the system to be customized according to the vibration characteristics of the equipment to achieve the optimal vibration reduction effect. Using the assembly mounting plate as a stand-alone component can simplify the design and manufacturing process of the equipment because the integration of the vibration damping device is no longer dependent on the specific design details of the equipment.

[0022] The utility model has the following beneficial effects:

[0023] 1. The multi-frequency vibration reduction tuned mass damper of the utility model can be installed on various multi-frequency vibration equipment, thereby achieving the vibration reduction and noise reduction requirements of the equipment;

[0024] 2. The dampers adopt a distributed layout. Different numbers of tuned mass dampers can be arranged around the equipment according to the specific vibration characteristics of the equipment. The number and type of dampers can be flexibly adjusted according to the vibration conditions of the equipment to improve vibration reduction efficiency.

[0025] 3. The installation process of the damper is simple. The vibration reduction device is fixed to the equipment through the clamping block, which reduces the requirements for the installation environment and will not significantly affect the original structure of the equipment. It is convenient for installation after the equipment is put into production. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the installation of the present utility model.

[0027] Figure 2 This is a schematic diagram of the structure for installing the vibration reduction device.

[0028] Figure 3 This is a schematic structural diagram of the utility model.

[0029] Figure 4 This is a schematic diagram of the assembly of the assembly mounting plate and equipment of the utility model.

[0030] Figure 5It is a structural schematic diagram of an embodiment of the present utility model.

[0031] In the figure: 1-assembly mounting plate; 2-vibration damping device; 21-vibration damping device base; 22-elastic body; 23-mass block; 24-clamping block; 3-equipment; DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0033] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of a component and therefore should not be construed as limiting the present invention. The specific dimensions used in this embodiment are merely for illustrative purposes and do not limit the scope of protection of the present invention.

[0034] Reference Figure 3 As can be seen, the present invention provides a multi-frequency vibration-reducing tuned mass damper, comprising an assembly mounting plate 1, a vibration-reducing device base 21, an elastic body 22, a mass block 23, a clamping block 24, and fasteners. Assembly mounting plate 1 is a key component for mounting the device, providing a stable platform to ensure its normal operation. The vibration-reducing device 2 is designed to reduce vibration and noise generated during operation, thereby improving the device's stability and service life.

[0035] The vibration damping device base 21, typically made of metal springs, TPE, rubber, metal rubber, or steel wire, serves as the foundation for the device and supports the entire device. The elastomer 22, a highly elastic material such as rubber or a spring, absorbs vibration energy generated during device operation. The mass 23, a weighted object, interacts with the elastomer to further reduce device vibration.

[0036] Clamping block 24 is a device used to secure assembly mounting plate 1. Typically made of metal, it securely fastens the assembly mounting plate to the equipment using bolts or other fasteners. These fasteners, such as bolts, nuts, and pins, connect the various components and ensure the stability of the entire vibration damping system.

[0037] When using this vibration damping device, first secure the assembly mounting plate 1 to the equipment using the clamping block 24. Then, install the elastic body 22 between the vibration damping device base 21 and the mass block 23. Finally, use fasteners to connect the vibration damping device base 21 to the assembly mounting plate 1, completing the installation of the entire vibration damping device 2.

[0038] Reference Figure 1 、 Figure 2 and Figure 4 , it can be seen that, first, the mass block 23 is pre-fixed to the elastic body 22 to ensure a firm connection between the two. The mass block 23 can be an integral or combined structure, and its weight and shape are designed according to the vibration characteristics of the equipment. The elastic body 22 with the fixed mass block 23 is placed above the vibration damping device base 21. The elastic body 22 can be a metal spring, TPE, rubber, metal rubber or steel wire rope, etc., and appropriate materials and structures are selected according to needs. The vibration damping device base 21 is connected to the elastic body 22 with bolts to ensure that the installation is stable and the elastic body is in a pre-compressed state to facilitate energy absorption. The vibration damping device base 21 is connected to the assembly mounting plate 1 by fasteners. The fasteners can be bolts or other appropriate connectors to ensure that the vibration damping device is firmly installed on the assembly mounting plate 1. The clamping block 24 connects the assembly mounting plate 1 and the device 3 by bolt connection, pressing or snapping. The clamping block can be an integral or combined structure, designed to withstand the force during the installation process and maintain the stability of the connection. Finally, the entire vibration damping device system is fixed to the device 3 by the clamping block (24). The design of the clamping block should ensure that the system will not be displaced or loosened when the equipment is running. According to the multi-frequency vibration of the equipment, multiple vibration damping devices 2 can be set on the assembly mounting plate 1. The number can be set to 4 or 6 as needed to cover all vibration frequencies of the equipment 3 and achieve a comprehensive vibration reduction effect. Through the reasonable design of the above structure, the combination of the elastomer 22 and the mass block 23 can be tuned to the specific vibration frequency of the equipment, thereby absorbing and dissipating vibration energy, reducing the vibration amplitude of the equipment, and achieving the purpose of vibration reduction and noise reduction; the distributed arrangement of the vibration damping device simplifies the installation process, and fixing it on the outside of the equipment reduces the changes to the internal structure of the equipment, which is convenient for maintenance and upgrading. This design can be applied to various multi-frequency vibration equipment and can be customized according to the specific needs of the equipment to improve the vibration reduction effect.

[0039] Reference Figure 5 , it can be seen that, in one embodiment, the assembly mounting plate 1 can be the mounting portion of the device 3, the vibration damping device 2 is directly mounted on the device 3, the assembly mounting plate 1 can be a separate plate-shaped structure, and the vibration damping device 2 is mounted on the assembly mounting plate 1;

[0040] During installation, the mass block 23 is pre-fixed to the elastic body 22; then the vibration damping device base 21 is connected to the elastic body 22 by bolts; then an indefinite number of vibration damping devices 2 set according to the multi-frequency vibration conditions of the equipment are installed one by one on the assembly mounting plate 1, and finally the vibration damping device is connected to the equipment 3 through the clamping block 24.

[0041] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A multi-frequency vibration reduction tuned mass damper, characterized in that: The invention comprises an assembly mounting plate (1) and a vibration damping device (2); the vibration damping device (2) comprises a vibration damping device base (21), an elastic body (22), a mass block (23) and fasteners; the assembly mounting plate (1) is fixed to the equipment via a clamping block (24); the elastic body (22) is installed between the vibration damping device base (21) and the mass block (23); and the vibration damping device base (21) and the assembly mounting plate (1) are connected via fasteners.

2. The multi-frequency vibration reduction tuned mass damper according to claim 1, characterized in that: A number of the vibration damping devices (2) are provided on the assembly mounting plate (1).

3. The multi-frequency vibration reduction tuned mass damper according to claim 1, characterized in that: The elastic body (22) is an integral structure.

4. The multi-frequency vibration reduction tuned mass damper according to claim 1, characterized in that: The elastic body (22) is a combined structure.

5. The multi-frequency vibration reduction tuned mass damper according to claim 3 or 4, characterized in that: The elastic body (22) is a metal spring, TPE, rubber, metal rubber or steel wire rope.

6. The multi-frequency vibration reduction tuned mass damper according to claim 1, characterized in that: The mass block (23) is an integrated structure.

7. The multi-frequency vibration reduction tuned mass damper according to claim 1, characterized in that: The mass block (23) is a combined structure.

8. The multi-frequency vibration reduction tuned mass damper according to claim 1, characterized in that: The clamping block (24) is an integrated structure or a combined structure, and the clamping block (24) fixes the vibration damping device (2) on the equipment (3) by means of bolt connection, pressing or snapping.

9. The multi-frequency vibration reduction tuned mass damper according to claim 1, characterized in that: The assembly mounting plate (1) is the mounting portion of the device (3) or a separate plate structure, and the vibration damping device (2) is fixed to the assembly mounting plate (1) via fasteners, or is directly fixed to the device (3).

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