Adjustable tuned mass damper

Abstract

The utility model discloses an adjustable tuned mass damper which comprises an adjusting assembly, a buffering assembly and a main body assembly. The body assembly comprises a base and mass block mounting plates, the base is fixedly mounted in a building structure, the adjusting assemblies are slidably mounted on the base at intervals, each adjusting assembly is adjustably provided with a buffer assembly, one end faces of the mass block mounting plates are correspondingly mounted on the buffer assemblies of the adjusting assemblies respectively, and the mass block mounting plates are fixedly mounted on the base. And the other end surfaces of the plurality of mass block mounting plates are fixedly connected with damping mass blocks in the building structure respectively. The utility model relates to the technical field of shock absorption equipment, and can solve the problem that a tuned mass damper in the prior art cannot adjust damping shock absorption strength.

Description

Technical Field

[0001] This utility model relates to the field of vibration damping equipment technology, and in particular to an adjustable tuned mass damper. Background Technology

[0002] The tuned mass damper is a hydraulic cylinder type, which mainly consists of a piston head, piston rod, cylinder body and seal. The piston reciprocates axially relative to the cylinder body. The piston head is provided with several small holes or leaves an appropriate radial clearance with the cylinder body. The piston head divides the damping cavity inside the cylinder into two damping chambers, which are filled with a viscous liquid with high viscosity.

[0003] Chinese utility model patent CN220523153U discloses a high-damping rubber tuned mass damper for arbitrary direction vibration reduction, comprising a circular base plate, a circular mass block, a rod-type viscous damper, and a high-damping rubber support. The circular mass block is mounted on top of the circular base plate via the high-damping rubber support, and the circular mass block is laterally connected to the inner wall of the circular base plate via the rod-type viscous damper. Existing tuned mass dampers cannot adjust the damping intensity, resulting in limitations in their application scenarios. Therefore, there is a need to provide an adjustable tuned mass damper that can solve the problem of existing tuned mass dampers being unable to adjust the damping intensity. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable tuned mass damper that can solve the problem that the damping and shock absorption intensity of existing tuned mass dampers cannot be adjusted.

[0005] This utility model is implemented as follows:

[0006] An adjustable tuned mass damper includes an adjustment component, a buffer component, and a main component. The main component includes a base and mass block mounting plates. The base is fixedly installed inside the building structure. Several sets of adjustment components are slidably and spaced apart on the base. Each set of adjustment components can be adjusted to install a buffer component. One end face of several mass block mounting plates is respectively installed on the buffer components of several sets of adjustment components. The other end face of several mass block mounting plates is fixedly connected to a damping mass block inside the building structure.

[0007] The base is a rectangular structure, and several second sliding grooves are formed at intervals along the length of the rectangular structure. Several second sliding blocks are slidably embedded in the several second sliding grooves. The adjustment component is fixedly installed on the second sliding block, so that the adjustment component is slidably set on the base.

[0008] The adjustment assembly includes a first plate and an adjustment mechanism; the bottom of the first plate is fixedly connected to a second slider, and protrusions are formed on both sides of the first plate, and the protrusions are fixed to the base by fixing bolts; a first groove is formed in the first plate, and a pair of adjustment mechanisms are embedded at both ends of the first groove, and the buffer assembly is adjustablely installed on the first plate through the first groove via the pair of adjustment mechanisms.

[0009] The first groove has a first sliding groove formed on both sides, and each set of adjustment mechanisms includes a pair of symmetrically arranged adjustment units that are respectively embedded in the two first sliding grooves.

[0010] Each set of adjustment units includes a cylinder, a second plate, a first spring, and a first slider; the fixed end of the cylinder is fixedly installed on the inner wall of the first slide groove near the end of the first plate; the second plate is fixedly connected to the telescopic end of the cylinder and slidably embedded in the first slide groove; the first spring is vertically connected between the second plate and the first slider, so that the first slider is slidably embedded in the first slide groove; and the buffer assembly is installed on the first slider of a pair of adjustment units.

[0011] The buffer assembly includes a pair of first buffer mechanisms and a pair of second buffer mechanisms; the pair of first buffer mechanisms are symmetrically arranged along the length direction of the first groove, and the pair of second buffer mechanisms are symmetrically arranged along the length direction perpendicular to the first groove, and the mass block mounting plate is mounted on the pair of first buffer mechanisms and the pair of second buffer mechanisms.

[0012] Each of the first buffer mechanisms includes a third plate, a damper, a second spring, and a first rod. The two ends of the third plate are respectively connected to a pair of first sliders of a pair of adjustment units. The damper is connected between the middle of one side of the third plate and the inner wall of the end of the first groove. The second spring is sleeved on the damper and connected to the middle of one side of the third plate and the inner wall of the end of the first groove. The first rod is hinged between the middle of the other side of the third plate and the mass block mounting plate.

[0013] A second groove is formed on the first plate. A pair of second grooves are located on both sides of the first groove. One end of the pair of second buffer mechanisms is installed on the first plate through the pair of second grooves, and the other end of the pair of second buffer mechanisms is connected to the bottom of the mass block mounting plate.

[0014] Each of the second buffer mechanisms includes a second rod, a third spring, and a sleeve; one end of the second rod is telescopically connected to one end of the sleeve to form a telescopic rod, the other end of the second rod is fixedly installed in the second groove, and the other end of the sleeve is fixedly installed at the bottom of the mass block mounting plate; the third spring is sleeved on the telescopic rod and connected to the bottom of the second groove and the bottom of the mass block mounting plate.

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] 1. Because this utility model is equipped with an adjustment component, the second plate can be extended or retracted by a cylinder, the compression of the first spring and the distance between the second plate and the first slider can be adjusted, and the movable distance of the first slider along the first slide groove can be controlled, thereby adjusting the damping stroke of the buffer component during the buffering and shock absorption process, that is, adjusting the damping and shock absorption intensity of the buffer component, making the adjustable tuned mass damper applicable to a wider range of scenarios.

[0017] 2. Because this utility model is equipped with a buffer component, the first buffer mechanism and the second buffer mechanism have different buffer directions, which is conducive to the rapid dissipation of vibration force and achieves the purpose of efficient buffering and shock absorption. It can also provide four-point support for the main component, thereby improving the stability and safety of the main component.

[0018] 3. Because this utility model has a main component, the movement of the second slider along the second slide groove drives the adjustment component to move synchronously, thereby adjusting the installation position of the adjustment component and the buffer component. This allows it to better adapt to the shock-absorbing mass blocks in building structures of different structures and sizes, improving the adaptability and versatility of application scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the adjustable tuned mass damper of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the adjustable tuned mass damper of this utility model;

[0021] Figure 3 This is a schematic diagram of the adjustment component and buffer component in the adjustable tuned mass damper of this utility model;

[0022] Figure 4 This is a cross-sectional view of the adjusting component in the adjustable tuned mass damper of this utility model.

[0023] In the diagram, 101 is the adjusting component, 10 is the first plate, 11 is the first groove, 12 is the first slide, 13 is the cylinder, 14 is the second plate, 15 is the first spring, 16 is the first slider, 17 is the protrusion, 201 is the buffer component, 20 is the third plate, 21 is the damper, 22 is the second spring, 23 is the first rod, 24 is the second rod, 25 is the third spring, 26 is the sleeve, 27 is the second groove, 301 is the main component, 30 is the base, 31 is the mass block mounting plate, 32 is the fixing bolt, 33 is the second slider, and 34 is the second slide. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Please see the appendix Figure 1 and attached Figure 2 An adjustable tuned mass damper includes an adjustment component 101, a buffer component 201, and a main component 301. The main component 301 includes a base 30 and a mass block mounting plate 31. The base 30 is fixedly installed inside the building structure. Several sets of adjustment components 101 are slidably and spaced apart on the base 30. Each set of adjustment components 101 can be adjustablely mounted with a buffer component 201. One end face of several mass block mounting plates 31 is respectively mounted on the buffer component 201 of several sets of adjustment components 101. The other end face of several mass block mounting plates 31 is fixedly connected to the damping mass block inside the building structure.

[0026] Preferably, two sets of adjustment components 101 can be symmetrically arranged on the base 30, and the number of adjustment components 101 is the same as the number of buffer components 201. The buffer components 201 are used to dampen the vibration of the damping mass blocks in the building structure, ensuring the safety of the building structure. The adjustment components 101 are used to adjust the position of the buffer components 201 and the damping intensity, thereby expanding the application scenarios of the adjustable tuned mass damper of this utility model.

[0027] Please see the appendix Figure 2 The base 30 is a rectangular structure, and a number of second sliding grooves 34 are formed at intervals along the length of the rectangular structure on the base 30. A number of second sliding blocks 33 are slidably embedded in the number of second sliding grooves 34. The adjustment component 101 is fixedly installed on the second sliding block 33, so that the adjustment component 101 is slidably set on the base 30.

[0028] Preferably, two second sliding grooves 34 can be symmetrically arranged along the length direction on the base 30. Each set of adjustment components 101 is equipped with two second sliders 33 at the bottom, which are used to slide in cooperation with the two second sliding grooves 34, thereby stably adjusting the installation position of the adjustment component 101, that is, the installation position of the buffer component 201 at the bottom of the damping mass block in the building structure. The adjustment is highly flexible and suitable for damping mass blocks of different structures and sizes.

[0029] Please see the appendix Figure 3 The adjustment component 101 includes a first plate 10 and an adjustment mechanism; the bottom of the first plate 10 is fixedly connected to a second slider 33, and protrusions 17 are formed on both sides of the first plate 10, and the protrusions 17 are fixed to the base 30 by fixing bolts 32; a first groove 11 is formed in the first plate 10, and a pair of adjustment mechanisms are embedded at both ends of the first groove 11. The buffer component 201 is adjustablely installed on the first plate 10 through the first groove 11 via a pair of adjustment mechanisms.

[0030] The first plate 10 slides with the second slider 33 to adjust the position of the entire adjustment assembly 101. After adjustment, the first plate 10 is fixed to the base 30 by the fixing bolt 32. Preferably, internal threaded holes can be made on the protrusion 17 and the base 30 to facilitate the installation and connection of the fixing bolt 32.

[0031] A pair of symmetrically arranged first plates 10 are used to provide balanced and stable support for the buffer assembly 201. The adjustment mechanism is used to adjust the damping and shock absorption intensity of the buffer assembly 201 and to consume the vibration force through the buffer assembly 201 and the adjustment mechanism.

[0032] Please see the appendix Figure 4 The first groove 11 has a first slide groove 12 formed on both sides. Each adjustment mechanism includes a pair of symmetrically arranged adjustment units that are respectively embedded in the two first slide grooves 12.

[0033] Preferably, the first groove 11 has an elongated structure, and a pair of adjustment units are symmetrically arranged at both ends of the first groove 11 to ensure that the buffer assembly 201 is subjected to uniform force on both sides. A pair of first grooves 12 are symmetrically arranged on both sides of the ends of the first groove 11, so that the adjustment units are symmetrically arranged, which is beneficial to the adjustment of the damping intensity and ensures the damping effect.

[0034] Please see the appendix Figure 4 Each set of adjustment units includes a cylinder 13, a second plate 14, a first spring 15, and a first slider 16. The fixed end of the cylinder 13 is fixedly installed on the inner wall of one end of the first slide groove 12 near the end of the first plate 10. The second plate 14 is fixedly connected to the telescopic end of the cylinder 13 and is slidably embedded in the first slide groove 12. The first spring 15 is vertically connected between the second plate 14 and the first slider 16, so that the first slider 16 is slidably embedded in the first slide groove 12. The buffer assembly 201 is installed on the first slider 16 of a pair of adjustment units.

[0035] The first spring 15 is always in a compressed state, thereby providing pressure to the second plate 14 and the first slider 16. The cylinder 13 uses air pressure to provide a power source, pushing the second plate 14 closer to or further away from the first slider 16, while changing the compression length of the first spring 15, thereby controlling the movement stroke of the first slider 16 in the first slide groove 12, and thus controlling the buffering and shock absorption stroke of the buffer assembly 201, to achieve the purpose of adjusting the damping and shock absorption intensity.

[0036] Please see the appendix Figure 3 The buffer assembly 201 includes a pair of first buffer mechanisms and a pair of second buffer mechanisms; the pair of first buffer mechanisms are symmetrically arranged along the length direction of the first groove 11, and the pair of second buffer mechanisms are symmetrically arranged along the length direction perpendicular to the first groove 11. The mass block mounting plate 31 is mounted on the pair of first buffer mechanisms and the pair of second buffer mechanisms.

[0037] The first and second buffer mechanisms are arranged along the length of the first groove 11 and perpendicular to the length of the first groove 11, respectively, which helps to improve the buffering and shock absorption effect. Both the first and second buffer mechanisms are arranged symmetrically, so that the mass block mounting plate 31 is subjected to uniform force and maintains high balance and stability during the shock absorption process.

[0038] Please see the appendix Figure 3 Each of the first buffer mechanisms includes a third plate 20, a damper 21, a second spring 22, and a first rod 23. The two ends of the third plate 20 are respectively connected to the first slider 16 of a pair of adjustment units. The damper 21 is connected between the middle of one side of the third plate 20 and the inner wall of the end of the first groove 11. The second spring 22 is sleeved on the damper 21 and connected to the middle of one side of the third plate 20 and the inner wall of the end of the first groove 11. The first rod 23 is hinged between the middle of the other side of the third plate 20 and the mass block mounting plate 31.

[0039] When the vibration force acts on the first rod 23 through the mass block mounting plate 31, since the first rod 23 is hinged between the third plate 20 and the mass block mounting plate 31, the mass block mounting plate 31 rises and falls, driving the first rod 23 to move and rotate, thus converting the rise and fall of the mass block mounting plate 31 into the horizontal movement of the third plate 20 along the first groove 11.

[0040] The damper 21 can be a tuned mass damper. When the third plate 20 moves horizontally, it compresses the damper 21 and the second spring 22. The second spring 22 extends and retracts synchronously with the distance between the third plate 20 and the inner wall of the end of the first groove 11. The second spring 22 extends and retracts synchronously with the movement of the third plate 20. The tuned mass damper and the spring damping force play a role in buffering and shock absorption.

[0041] When the third plate 20 moves, it synchronously drives the first slider 16 to move within the first slide groove 12. The range of movement of the first slider 16 is limited by the first spring 15 and the second plate 14. Therefore, the range of movement of the third plate 20 can be adjusted by the position of the first slider 16, which also adjusts the damping and shock absorption strength of the buffer assembly 201.

[0042] Please see the appendix Figure 3 The first plate 10 has a second groove 27 formed thereon. A pair of second grooves 27 are located on both sides of the first groove 11. One end of a pair of second buffer mechanisms is installed on the first plate 10 through the pair of second grooves 27, and the other end of the pair of second buffer mechanisms is connected to the bottom of the mass block mounting plate 31.

[0043] Preferably, the second groove 27 can be set on both sides of the middle of the first groove 11. The straight line of the pair of second grooves 27 is perpendicular to the length direction of the first groove 11, which can increase the support points for the mass block mounting plate 31 and improve the shock absorption effect.

[0044] Please see the appendix Figure 3 Each of the second buffer mechanisms includes a second rod 24, a third spring 25, and a sleeve 26; one end of the second rod 24 is telescopically connected to one end of the sleeve 26 to form a telescopic rod, the other end of the second rod 24 is fixedly installed in the second groove 27, and the other end of the sleeve 26 is fixedly installed at the bottom of the mass block mounting plate 31; the third spring 25 is sleeved on the telescopic rod and connected to the bottom of the second groove 27 and the bottom of the mass block mounting plate 31.

[0045] When the mass mounting plate 31 is subjected to vibration and the sleeve 26 is pressed down, the sleeve 26 slides relative to the second rod 24, and the telescopic sleeve and the third spring 25 shorten. The elastic force of the third spring 25 provides direct vertical buffering and shock absorption. By using the different buffering directions of the first and second buffering mechanisms, the shock absorption effect and efficiency of the mass mounting plate 31 are improved, thereby ensuring that the adjustable tuned mass damper has good buffering and shock absorption functions.

[0046] Please see the appendix Figure 1 To be continued Figure 4 The working process and working principle of this utility model are as follows:

[0047] Install the base 30 of this utility model at the vibration damping point, loosen the fixing bolt 32, so that the second slider 33 can drive the first plate 10 to slide along the second slide groove 34, which is used to adjust the position of the first plate 10 of each group of adjustment components 101. After adjustment, tighten the fixing bolt 32 to limit the position of the first plate 10. Install the vibration damping mass block inside the building structure onto the mass block mounting plate 31 above each group of adjustment components 101.

[0048] When the building structure is subjected to external vibration, the vertical vibration component causes the damping mass block to press down on the mass block mounting plate 31, which in turn presses down on the sleeve 26. The telescopic sleeve shortens, compressing the third spring 25 to generate damping force. Simultaneously, the mass block mounting plate 31 presses down on the first rod 23, causing it to rotate. The third plate 20 moves towards the end of the first plate 10, the damper 21 shortens, and simultaneously compresses the second spring 22. The tuned mass damper generates damping force, and the second spring 22 generates elastic damping force. During the movement of the third plate 20, the first slider 16 moves synchronously along the first slide groove 12, and the first spring 15 is compressed, generating damping force.

[0049] The damping force generated by the first spring 15, the second spring 22, and the third spring 25 dissipates energy, achieving the purpose of vibration reduction. After the vibration, the reaction force of the damper 21, the first spring 15, the second spring 22, and the third spring 25 resets the adjusting component 101, the buffer component 201, and the main component 301, that is, the reverse motion restores them to the state before the vibration.

[0050] When it is necessary to adjust the damping intensity, cylinder 13 is activated. The piston rod of cylinder 13 extends or retracts, driving the second plate 14 to move synchronously along the first slide groove 12. When the piston rod of cylinder 13 extends, the compression of the first spring 15 increases, and the distance between the second plate 14 and the first slider 16 decreases. When the piston rod of cylinder 13 retracts, the compression of the first spring 15 decreases, and the distance between the second plate 14 and the first slider 16 increases. Thus, by utilizing the different damping forces provided by the different compressions of the first spring 15 and the distance between the second plate 14 and the first slider 16, the movable distance of the first slider 16 along the first slide groove 12 with the third plate 20 during vibration is controlled, thereby achieving the purpose of adjusting the damping intensity.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An adjustable tuned mass damper, characterized in that: It includes an adjustment component (101), a buffer component (201), and a main component (301); the main component (301) includes a base (30) and a mass block mounting plate (31). The base (30) is fixedly installed in the building structure. Several sets of adjustment components (101) are slidably and spaced on the base (30). Each set of adjustment components (101) can be adjusted and installed with a buffer component (201). One end face of several mass block mounting plates (31) is respectively installed on the buffer component (201) of several sets of adjustment components (101). The other end face of several mass block mounting plates (31) is fixedly connected to the shock-absorbing mass block in the building structure.

2. The adjustable tuned mass damper according to claim 1, characterized in that: The base (30) is a rectangular structure, and several second sliding grooves (34) are formed at intervals along the length of the rectangular structure on the base (30). Several second sliding blocks (33) are slidably embedded in the several second sliding grooves (34). The adjustment component (101) is fixedly installed on the second sliding block (33), so that the adjustment component (101) is slidably set on the base (30).

3. The adjustable tuned mass damper according to claim 2, characterized in that: The adjustment assembly (101) includes a first plate (10) and an adjustment mechanism; the bottom of the first plate (10) is fixedly connected to a second slider (33), and protrusions (17) are formed on both sides of the first plate (10), and the protrusions (17) are fixed to the base (30) by fixing bolts (32); a first groove (11) is formed in the first plate (10), and a pair of adjustment mechanisms are embedded at both ends of the first groove (11), and the buffer assembly (201) is adjustablely installed on the first plate (10) through the first groove (11) by a pair of adjustment mechanisms.

4. The adjustable tuned mass damper according to claim 3, characterized in that: The first groove (11) has a first slide groove (12) formed on both sides. Each set of adjustment mechanisms includes a pair of symmetrically arranged adjustment units that are respectively embedded in the two first slide grooves (12).

5. The adjustable tuned mass damper according to claim 4, characterized in that: Each set of adjustment units includes a cylinder (13), a second plate (14), a first spring (15), and a first slider (16); the fixed end of the cylinder (13) is fixedly installed on the inner wall of the first slide groove (12) near the end of the first plate (10); the second plate (14) is fixedly connected to the telescopic end of the cylinder (13) and is slidably embedded in the first slide groove (12); the first spring (15) is vertically connected between the second plate (14) and the first slider (16), so that the first slider (16) is slidably embedded in the first slide groove (12); the buffer assembly (201) is installed on the first slider (16) of a pair of adjustment units.

6. The adjustable tuned mass damper according to claim 3 or 5, characterized in that: The buffer assembly (201) includes a pair of first buffer mechanisms and a pair of second buffer mechanisms; the pair of first buffer mechanisms are symmetrically arranged along the length direction of the first groove (11), and the pair of second buffer mechanisms are symmetrically arranged along the length direction perpendicular to the first groove (11). The mass block mounting plate (31) is mounted on the pair of first buffer mechanisms and the pair of second buffer mechanisms.

7. The adjustable tuned mass damper according to claim 6, characterized in that: Each of the first buffer mechanisms described in the group includes a third plate (20), a damper (21), a second spring (22), and a first rod (23); the two ends of the third plate (20) are respectively connected to a pair of first sliders (16) of a pair of adjustment units, and the damper (21) is connected between the middle of one side of the third plate (20) and the inner wall of the end of the first groove (11); the second spring (22) is sleeved on the damper (21) and connected to the middle of one side of the third plate (20) and the inner wall of the end of the first groove (11); the first rod (23) is hinged between the middle of the other side of the third plate (20) and the mass block mounting plate (31).

8. The adjustable tuned mass damper according to claim 6, characterized in that: A second groove (27) is formed on the first plate (10). A pair of second grooves (27) are located on both sides of the first groove (11). One end of the pair of second buffer mechanisms is installed on the first plate (10) through the pair of second grooves (27), and the other end of the pair of second buffer mechanisms is connected to the bottom of the mass block mounting plate (31).

9. The adjustable tuned mass damper according to claim 8, characterized in that: Each of the second buffer mechanisms described in the group includes a second rod (24), a third spring (25), and a sleeve (26); one end of the second rod (24) is telescopically connected to one end of the sleeve (26) to form a telescopic rod, the other end of the second rod (24) is fixedly installed in the second groove (27), and the other end of the sleeve (26) is fixedly installed at the bottom of the mass block mounting plate (31); the third spring (25) is sleeved on the telescopic rod and connected to the bottom of the second groove (27) and the bottom of the mass block mounting plate (31).

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