Tuned mass damper

Abstract

The utility model discloses a tuned mass damper which comprises a base, a mass block is installed on the top of the base in a sliding mode, the mass block is connected with a connecting block through a damping assembly, and a driving rod is installed at the end, away from a spring, of the connecting block. The base is provided with a limiting assembly for limiting the driving rod, and the base is provided with a driving assembly for driving the driving rod to move in a reciprocating mode. The damping assembly comprises a rubber cylinder and a spring, and the spring is arranged on the outer side of the rubber cylinder in a sleeving mode. According to the utility model, the driving rod can be driven to reciprocate through the driving assembly, so that the action on the mass block is realized, the reciprocating distance of the mass block can be observed through the action of the damping assembly, the damping assembly comprises a rubber cylinder and a spring, the defect of single spring damping is overcome, and the damping effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to a tuned mass damper. Background Art

[0002] Tuned mass dampers are widely used in vibration control of high-rise structures due to their simple structure and good control effect. TMDs are usually composed of inertial mass blocks, springs and damping elements.

[0003] The existing publication number CN219010932U discloses a horizontal compression spring tuned mass damper, which includes a base, a guide shaft, a mass unit, a damping unit, a rolling unit, a first compression spring and a second compression spring; the base includes a first support baffle and a second support baffle symmetrically arranged on the top, and the two ends of the guide shaft are respectively fixedly connected to the first support baffle and the second support baffle, the mass unit is slidably arranged on the guide shaft, and a rolling unit is provided at the bottom thereof so as to roll on the base; the first compression spring and the second compression spring are sleeved on the guide shaft and are respectively located on both sides of the mass unit; one end of the damping unit is connected to the first support baffle, and the other end is arranged to be connected to the mass unit to provide damping for the TMD system; by adjusting the mass unit to horizontal linear motion and providing a rolling unit at its bottom to reduce the friction damping generated during motion, it is avoided that the TMD structure is over-damped and the TMD cannot vibrate, thereby ensuring a good vibration reduction effect of the structure.

[0004] The existing technology mainly achieves shock absorption through springs, which has a relatively poor effect and cannot select the number of mass blocks according to needs. In order to solve the above technical problems, we propose a tuned mass damper. Utility Model Content

[0005] The utility model aims to provide a tuned mass damper to solve the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tuned mass damper, comprising a base, a mass block is slidably mounted on the top of the base, the mass block is connected to a connecting block through a shock absorbing assembly, and a driving rod is mounted on one end of the connecting block away from the spring; the base is equipped with a limiting assembly for limiting the driving rod, and the base is equipped with a driving assembly for driving the driving rod to and fro; the shock absorbing assembly comprises a rubber tube and a spring, and the spring is sleeved on the outside of the rubber tube.

[0007] Preferably, at least two mass blocks are provided, and adjacent mass blocks are connected via a shock absorbing assembly.

[0008] Preferably, a guide rail is installed on the top of the base, and a roller cooperating with the guide rail is installed on the bottom end of the mass block.

[0009] Preferably, the limiting assembly includes a plurality of guide rods, and the plurality of guide rods are evenly distributed on both sides of the driving rod, and a guide wheel in contact with the driving rod is installed on the top of the guide rod.

[0010] Preferably, the driving assembly includes a servo motor and a connecting plate, a connecting head is installed at the bottom of the connecting plate, the output shaft of the servo motor is connected to the connecting head, a shaft is installed at the top of the connecting plate, and the driving rod is provided with a guide hole that cooperates with the shaft.

[0011] Preferably, it also includes a connecting rod, the driving rod is inserted into the connecting block, the connecting rod passes through the connecting block and the driving rod, and limiting nuts are installed at both ends of the connecting rod.

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

[0013] 1. The driving assembly can drive the driving rod to move back and forth, thereby realizing the effect on the mass block. Through the effect of the shock absorbing assembly, the reciprocating distance of the mass block can be observed. The shock absorbing assembly includes a rubber tube and a spring, which solves the disadvantages of a single spring shock absorption. The shock absorption effect of this application is better.

[0014] 2. There are at least two mass blocks, and adjacent mass blocks are connected by a shock absorbing assembly. The number of mass blocks can be selected according to needs to achieve damping effects of different intensities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model when the driving component is removed;

[0018] Figure 3 It is a structural schematic diagram of the connection plate of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the shock absorbing component of the utility model.

[0020] In the figure: 1. base; 2. servo motor; 3. guide rail; 4. mass block; 5. shock absorbing assembly; 6. connecting block; 7. guide wheel; 8. driving rod; 9. connecting rod; 10. shaft; 11. fixing rod; 12. connecting plate; 13. connecting head; 51. rubber tube; 52. spring; 81. guide hole. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0022] See also Figure 1-4 In an embodiment of the utility model, a tuned mass damper comprises a base 1, a mass block 4 is slidably mounted on the top of the base 1, a guide rail 3 is mounted on the top of the base 1, a roller matching the guide rail 3 is mounted on the bottom of the mass block 4, the mass block 4 is connected to a connecting block 6 through a shock absorbing assembly 5, and a driving rod 8 is mounted on the end of the connecting block 6 away from the spring 52; a limiting assembly for limiting the driving rod 8 is mounted on the base 1, and a driving assembly for driving the driving rod 8 to move back and forth is mounted on the base 1; the driving assembly can drive the driving rod 8 to move back and forth, thereby realizing the effect on the mass block, and the reciprocating distance of the mass block can be observed through the effect of the shock absorbing assembly;

[0023] At least two mass blocks 4 are provided, and adjacent mass blocks 4 are connected by a shock absorbing assembly 5. The shock absorbing assembly 5 includes a rubber tube 51 and a spring 52. The spring 52 is sleeved on the outside of the rubber tube 51, and the rubber tube 51 is fixed on the connecting parts (connecting blocks, mass blocks) at both ends. The number of mass blocks can be selected according to needs to achieve damping effects of different intensities.

[0024] The limiting assembly includes a plurality of guide rods, which are evenly distributed on both sides of the driving rod 8. A guide wheel 7 in contact with the driving rod 8 is installed on the top of the guide rod. The limiting assembly can limit the driving rod 81 to ensure that the driving rod 81 moves in a straight line.

[0025] The driving assembly includes a servo motor 2 and a connecting plate 12. The servo motor 2 is installed on the base 1 through a fixing rod 11. A connecting head 13 is installed at the bottom of the connecting plate 12. The output shaft of the servo motor 2 is connected to the connecting head 13. A shaft 10 is installed on the top of the connecting plate 12. The driving rod 8 is provided with a guide hole 81 that cooperates with the shaft 10. The setting of the guide hole 81 can realize the movement of the shaft 10 in the guide hole 81.

[0026] It also includes a connecting rod 9, the driving rod 8 is inserted into the connecting block 6, the connecting rod 9 passes through the connecting block 6 and the driving rod 8, and limiting nuts are installed at both ends of the connecting rod 9. The setting of the connecting rod and the limiting nuts can facilitate the disassembly and assembly of the connecting rod, thereby realizing the disassembly and assembly of the driving rod 8 and the connecting block 6.

[0027] The working principle of the utility model is that the driving rod 8 can be driven to move back and forth by the driving assembly, thereby realizing the effect on the mass block, and the reciprocating distance of the mass block can be observed by the effect of the shock absorbing assembly.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A tuned mass damper, comprising a base (1), characterized in that: A mass block (4) is slidably mounted on the top of the base (1); the mass block (4) is connected to a connecting block (6) via a shock absorbing assembly (5); a driving rod (8) is mounted on one end of the connecting block (6) away from the spring (52); a limiting assembly for limiting the driving rod (8) is mounted on the base (1); and a driving assembly for driving the driving rod (8) to reciprocate is mounted on the base (1); The shock absorbing assembly (5) comprises a rubber tube (51) and a spring (52), wherein the spring (52) is sleeved on the outside of the rubber tube (51).

2. A tuned mass damper according to claim 1, characterized in that: At least two mass blocks (4) are provided, and adjacent mass blocks (4) are connected via a shock absorbing assembly (5).

3. A tuned mass damper according to claim 1 or 2, characterized in that: A guide rail (3) is installed on the top of the base (1), and a roller that cooperates with the guide rail (3) is installed on the bottom end of the mass block (4).

4. A tuned mass damper according to claim 1, characterized in that: The position limiting assembly comprises a plurality of guide rods, the plurality of guide rods being evenly distributed on both sides of the driving rod (8), and a guide wheel (7) in contact with the driving rod (8) being installed on the top of the guide rod.

5. A tuned mass damper according to claim 1, characterized in that: The driving assembly comprises a servo motor (2) and a connecting plate (12); a connecting head (13) is installed at the bottom of the connecting plate (12); an output shaft of the servo motor (2) is connected to the connecting head (13); a shaft (10) is installed at the top of the connecting plate (12); and a guide hole (81) is provided on the driving rod (8) that matches the shaft (10).

6. A tuned mass damper according to claim 1, characterized in that: It also includes a connecting rod (9), the driving rod (8) is inserted into the connecting block (6), the connecting rod (9) passes through the connecting block (6) and the driving rod (8), and limit nuts are installed at both ends of the connecting rod (9).

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