A dual-mass linked tuned mass damper

Abstract

This utility model relates to the field of tuned mass dampers, specifically disclosing a tuned mass damper with dual mass blocks, including a main mass block, a damper body, a secondary mass block, and a hydraulic cylinder. The damper body contains the main mass block and the secondary mass block, which are connected by a spring. The end of the secondary mass block is connected to a guide rod, and a piston is provided at one end of the guide rod. A hydraulic cylinder is located near the end of the damper body, with an oil head on one side and a sealing bushing inside. The damper body has a first connecting lug and a second connecting lug at both ends, facilitating installation and fixation. The hydraulic cylinder near the end of the damper body allows for liquid buffering and shock absorption control. A shock-absorbing cavity is located inside the damper body, and a guide rod is located inside the shock-absorbing cavity.

Description

Technical Field

[0001] This utility model relates to the field of tuned mass dampers, specifically a tuned mass damper with dual mass blocks linked together. Background Technology

[0002] A tuned mass damper is a device used in super high-rise buildings to cope with wind-induced vibrations, reducing acceleration response and building sway amplitude during strong winds, and improving the comfort of people inside the building. It consists of a mass, springs, and a damping system. By adjusting the vibration frequency to near the main structure frequency, it can change the structure's resonance characteristics to achieve a vibration reduction effect.

[0003] For example, the authorized patent with publication number CN116556757B (tuned mass damper): The tuned mass damper is installed on the main structure requiring vibration control. When the main structure vibrates under external load excitation, the tuned mass damper reduces vibration. The tuned mass damper includes an active tuned mass damper unit, a passive tuned mass damper unit, a sensing unit, and a control drive unit. When the amplitude of the main structure under external load excitation is less than the set threshold, only the passive tuned mass damper unit works, while the active tuned mass damper unit remains inactive, thus meeting the vibration reduction requirements with almost no energy consumption. When the amplitude of the main structure under external load excitation exceeds the set threshold, the active tuned mass damper unit begins to operate, achieving efficient vibration reduction and energy dissipation.

[0004] The dampers in the above-mentioned existing technologies have insufficient vibration reduction effect, cannot be self-tuned, are not flexible in use, and cannot perform multi-directional vibration reduction and buffer adjustment. Furthermore, the damper body is not convenient to fix. Utility Model Content

[0005] The purpose of this invention is to provide a tuned mass damper with dual mass blocks linked together, in order to solve the problems mentioned in the background art, such as insufficient damping effect, inability to perform self-tuning control, lack of flexibility in use, inability to perform multi-directional damping and buffering adjustment, and inconvenience in fixing the damper body.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tuned mass damper with dual mass blocks, comprising a main mass block, a damper body, a secondary mass block, and a hydraulic cylinder. The damper body contains a main mass block and a secondary mass block, which are connected by a spring. The end of the secondary mass block is connected to a guide rod, and a piston is provided at one end of the guide rod. A hydraulic cylinder is provided near the end of the damper body, and an oil head is provided on one side of the hydraulic cylinder. A sealing bushing is provided inside the hydraulic cylinder.

[0007] In a further embodiment, the damper body has a first connecting lug and a second connecting lug at both ends, and both the first connecting lug and the second connecting lug have a hinge hole in the middle.

[0008] In a further embodiment, a threaded hole is provided at the middle of one end of the main mass block, and the main mass block is connected to the end of the buffer rod through the threaded hole. The end of the buffer rod is connected to the first connecting lug.

[0009] In a further embodiment, the guide rod is provided with a piston, and the piston is located in the middle of one side of the cylinder.

[0010] In a further embodiment, there are four springs in total, and the four springs are evenly distributed between the main mass block and the secondary mass block.

[0011] In a further embodiment, the damper body has a damping cavity inside, a sealing bushing is provided at the end of the guide rod, and the sealing bushing is provided at the end of the inner cavity of the damping cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The damper body of this utility model is provided with a first connecting ear and a second connecting ear at both ends. The first connecting ear and the second connecting ear facilitate the installation and fixing of the damper body. A hydraulic cylinder is provided on the damper body near the end position. The hydraulic cylinder can be used for liquid buffering and shock absorption control.

[0014] 2. The damper body of this utility model has a damping cavity inside, and a guide rod is provided inside the damping cavity. A piston is provided at the end of the guide rod. The piston can push the guide rod to guide. Multiple springs are provided between the main mass block and the secondary mass block. The multiple springs can be tuned and controlled to effectively improve the balance and damping effect of the damper body. The end of the main mass block is connected to the first connecting ear through a buffer rod, so that it can be buffered and controlled to effectively improve the damping effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main mass block of this utility model;

[0017] Figure 3 This is a top view of the main mass block of this utility model;

[0018] Figure 4 This is a structural schematic diagram of part A of this utility model.

[0019] In the diagram: 1. First connecting lug; 2. Buffer rod; 3. Main mass block; 4. Spring; 5. Damper body; 6. Second connecting lug; 7. Secondary mass block; 8. Shock absorption chamber; 9. Guide rod; 10. Piston; 11. Oil head; 12. Oil cylinder; 13. Sealing bushing; 14. Threaded hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figure 1-4 This utility model provides an embodiment of a tuned mass damper with dual mass blocks, comprising a main mass block 3, a damper body 5, a secondary mass block 7, and a hydraulic cylinder 12. The damper body 5 contains the main mass block 3 and the secondary mass block 7, which are connected by a spring 4. The end of the secondary mass block 7 is connected to a guide rod 9, and a piston 10 is provided at one end of the guide rod 9. The hydraulic cylinder 12 is located near the end of the damper body 5, and an oil head 11 is provided on one side of the hydraulic cylinder 12. A sealing bushing 13 is provided inside the hydraulic cylinder 12. The main mass block 3 and the secondary mass block 7 are used for tuning, damping, and buffering control. The guide rod 9 can be used for buffering through the piston 10. The hydraulic cylinder 12 is used to store oil. The oil head 11 facilitates the addition of oil to the hydraulic cylinder 12. The sealing bushing 13 can seal the hydraulic cylinder 12.

[0022] The damper body 5 has a first connecting lug 1 and a second connecting lug 6 at both ends. The first connecting lug 1 and the second connecting lug 6 are both provided with hinge holes in the middle, so that the damper body 5 can be installed through the first connecting lug 1 and the second connecting lug 6.

[0023] The main mass block 3 has a threaded hole in the middle of one end. The main mass block 3 is connected to the end of the buffer rod 2 through the threaded hole 14. The end of the buffer rod 2 is connected to the first connecting lug 1. The threaded hole facilitates the threaded fixation of the buffer rod 2 and the main mass block 3.

[0024] A piston 10 is provided on the guide rod 9, and the piston 10 is located in the middle of one side of the oil cylinder 12. The guide rod 9 is controlled by the piston 10.

[0025] There are four springs 4 in total, and the four springs 4 are evenly distributed between the main mass block 3 and the secondary mass block 7. The springs 4 can be used to dampen and tune the main mass block 3 and the secondary mass block 7.

[0026] The damper body 5 has a damping cavity 8 inside, and a sealing bushing 13 is located at the end of the guide rod 9. The sealing bushing 13 is located at the end of the inner cavity of the damping cavity 8, and the end of the damper body 5 can be sealed by the sealing bushing 13.

[0027] Working principle: In use, the two ends of the damper body 5 are installed and fixed through the first connecting ear 1 and the second connecting ear 6 respectively. Oil is added into the oil cylinder 12 through the oil head 11. The oil in the oil cylinder 12 is used as power to push and control the piston 10. The piston 10 controls the guide rod 9, so that the end of the guide rod 9 is self-tuned through the secondary mass block 7 and the main mass block 3. The secondary mass block 7 and the main mass block 3 can be buffered and balanced through the spring 4. The installation of the first connecting ear 1 can be buffered through the buffer rod 2.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tuned mass damper with dual mass blocks, comprising a main mass block (3), a damper body (5), a secondary mass block (7), and a hydraulic cylinder (12), characterized in that: The damper body (5) is provided with a main mass block (3) and a secondary mass block (7) inside, and the main mass block (3) and the secondary mass block (7) are connected by a spring (4). The end of the secondary mass block (7) is connected to the guide rod (9). A piston (10) is provided at one end of the guide rod (9). A hydraulic cylinder (12) is provided near the end of the damper body (5). An oil head (11) is provided on one side of the hydraulic cylinder (12). A sealing bushing (13) is provided inside the hydraulic cylinder (12).

2. A dual-mass linked tuned mass damper according to claim 1, characterized in that: The damper body (5) has a first connecting ear (1) and a second connecting ear (6) at both ends, and the first connecting ear (1) and the second connecting ear (6) are provided with hinge holes in the middle.

3. A dual-mass linked tuned mass damper according to claim 1, wherein: The main mass block (3) has a threaded hole at the middle of one end. The main mass block (3) is connected to the end of the buffer rod (2) through the threaded hole (14). The end of the buffer rod (2) is connected to the first connecting ear (1).

4. A dual-mass linked tuned mass damper according to claim 1, wherein: The guide rod (9) is provided with a piston (10), and the piston (10) is located in the middle of one side of the oil cylinder (12).

5. A dual-mass linked tuned mass damper according to claim 1, wherein: There are four springs (4), and the four springs (4) are evenly distributed between the main mass block (3) and the secondary mass block (7).

6. A dual-mass linked tuned mass damper according to claim 1, wherein: The damper body (5) has a damping cavity (8) inside, and a sealing bushing (13) is provided at the end of the guide rod (9), and the sealing bushing (13) is provided at the end of the inner cavity of the damping cavity (8).

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