Vibration reduction control device of suspension type tuned mass damper

Abstract

The utility model discloses a suspension type tuned mass damper vibration reduction control device which comprises a mass block machine shell, a cover plate is connected to the upper portion of the mass block machine shell in a clamped mode, bayonets are formed in the two sides of the lower portion of the cover plate, a spring core shaft penetrates through the cover plate, a rigidity adjusting spring is connected to the spring core shaft in a sleeved mode, and the rigidity adjusting spring is connected with the mass block machine shell in a sleeved mode. And the lower end of the spring mandrel is fixedly connected with a connecting frame. The utility model belongs to the technical field of structural vibration reduction engineering, and effectively solves the problems that a vibration reduction control device of a suspension type tuned mass damper is inconvenient to mount and dismount during maintenance, and the replacement cost of a part structure is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of structural vibration reduction engineering, and specifically refers to a suspended tuned mass damper vibration reduction control device. Background Art

[0002] A tuned mass damper (TMD) is a passive vibration reduction control device that can work without external energy input; a general tuned mass damper consists of a mass block, a spring, and a damper; its vibration reduction mechanism is: using the resonance principle, by changing the mass or stiffness to adjust the self-tuning frequency of the TMD, making it close to the fundamental frequency of the main structure or the excitation frequency of the external load. When the controlled structure vibrates under the external excitation, it causes the TMD to resonate, and the vibration inertia of the TMD mass block generates a reaction force in the opposite direction to the original structure. At the same time, its built-in damper also plays an energy dissipation role, so as to achieve the purpose of reducing and controlling the dynamic response of the main structure.

[0003] Publication (Announcement) Number: CN202611007U provides a suspended tuned mass damper vibration reduction control device, which can reduce and control the vertical vibration problems of building structures caused by earthquakes, wind vibrations, rail transit vehicles, pedestrian walking, etc.

[0004] However, when the above patent is used, it is necessary to manually fix multiple bolts, and the installation operation is relatively inconvenient. When the components need to be replaced, the equipment maintenance cost is increased. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is that the installation and disassembly of the suspended tuned mass damper vibration reduction control device are relatively inconvenient during maintenance, increasing the cost of replacing the component structure.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A suspended tuned mass damper vibration reduction control device proposed by the utility model includes a mass block housing, a cover plate is clamped on the upper part of the mass block housing, bayonets are opened on both sides of the lower part of the cover plate, a spring core shaft penetrates through the cover plate, a stiffness adjustment spring is sleeved on the spring core shaft, and a connecting frame is fixedly connected to the lower end of the spring core shaft.

[0008] Further, a damper is fixedly connected to the lower end of the connecting frame, and a reference spring is sleeved on the damper.

[0009] Further, a connecting equipment frame is fixedly connected to the upper part of the mass block housing, a movable slot is opened on the connecting equipment frame, a pull rod penetrates through the movable slot, and an arc-shaped limiting block is fixedly connected to the end of the pull rod.

[0010] Further, a tightening spring is sleeved on the pull rod, and the tightening spring is arranged between the arc-shaped limiting block and the connecting device frame.

[0011] Further, a clamping groove matched with the arc-shaped limiting block is formed on the side surface of the cover plate.

[0012] Further, an internal mounting plate is fixedly connected to the lower part of the damper, a rigid suspension rod penetrating through the cover plate is fixedly connected to the internal mounting plate, a top plate is fixedly connected to the upper end of the rigid suspension rod, and a hexagonal bolt is screwed on the rigid suspension rod.

[0013] The beneficial effects achieved by the present utility model with the above structure are as follows:

[0014] 1. By setting a structure convenient for installation and disassembly, it is convenient to combine and disassemble the spring structure of parts, improves the maintenance and use efficiency, and reduces the trouble of manually installing bolts. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 is a partial schematic diagram of the mounting structure on the cover plate;

[0017] Figure 3 is a partial structural schematic diagram of the connecting device frame;

[0018] Figure 4 is a schematic diagram of the structural installation of the rigid suspension rod.

[0019] Among them, 1. Mass block housing; 2. Cover plate; 3. Bayonet; 4. Spring core shaft; 5. Stiffness adjustment spring; 6. Connecting frame; 7. Damper; 8. Connecting device frame; 9. Activity groove; 10. Pull rod; 11. Arc-shaped limiting block; 12. Tightening spring; 13. Internal mounting plate; 14. Rigid suspension rod; 15. Top plate; 16. Hexagonal bolt. Detailed Embodiment

[0020] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a suspended tuned mass damper vibration control device proposed by the present utility model includes a mass block housing 1, a cover plate 2 is clamped on the upper part of the mass block housing 1, clamping grooves 3 are formed on both sides of the lower part of the cover plate 2, a spring core shaft 4 penetrates through the cover plate 2, a stiffness adjustment spring 5 is sleeved on the spring core shaft 4, and the lower end of the spring core shaft 4 is fixedly connected to a connecting frame 6; the lower end of the connecting frame 6 is fixedly connected to a damper 7, and a reference spring is sleeved on the damper 7.

[0021] A connecting device frame 8 is fixedly connected to the upper part of the mass housing 1. An activity slot 9 is provided on the connecting device frame 8. A pull rod 10 penetrates through the activity slot 9. An arc-shaped limiting block 11 is fixedly connected to the end of the pull rod 10. A pressing spring 12 is sleeved on the pull rod 10. The pressing spring 12 is arranged between the arc-shaped limiting block 11 and the connecting device frame 8. A clamping slot matched with the arc-shaped limiting block 11 is provided on the side surface of the cover plate 2.

[0022] An internal mounting plate 13 is fixedly connected to the lower part of the damper 7. A rigid suspension rod 14 penetrating through the cover plate 2 is fixedly connected to the internal mounting plate 13. A top plate 15 is fixedly connected to the upper end of the rigid suspension rod 14. A hexagonal bolt 16 is screwed on the rigid suspension rod 14.

[0023] During specific use, the user first sets the internal mounting plate 13 inside the mass. The rigid suspension rod 14, the damper 7, the damper 7 and the spring core shaft 4 are sequentially fixed on the internal mounting plate 13. The spring core shaft 4 is connected and fixed to the connecting frame 6 by penetrating through the cover plate 2. When installing the cover plate 2, by clamping it on the upper part of the mass housing 1, as the pressure acts on the arc surface of the arc-shaped limiting block 11, the upward arc surface converts the acting force into a horizontal thrust. While compressing the pressing spring 12, the pull rod 10 is pushed.

[0024] After the cover plate 2 is installed in place, the clamping slot on the cover plate 2 corresponds to the arc-shaped limiting block 11. The arc-shaped limiting block 11 without resistance is pushed by the elastic potential energy of the pressing spring 12 to be inserted into it, and the pull rod 10 is pulled to move. The pull rod 10 plays a role in assisting the operation during disassembly, improving the use efficiency.

[0025] During the vibration reduction operation, the damper 7 and the spring core shaft 4 are used for working vibration reduction, and cooperate with other spring structures to realize the vibration reduction control function of the tuned mass damper 7.

[0026] The above is the entire use process of a suspended tuned mass damper vibration reduction control device.

[0027] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the creative purpose of the present invention, without creative design, the structural manners and embodiments similar to the technical solution are all within the protection scope of the present invention.

Claims

1. A suspended tuned mass damper vibration control device, comprising a mass block housing (1), a cover plate (2) being clamped on the upper portion of the mass block housing (1), characterized in that: The lower sides of the cover plate (2) are provided with bayonet holes (3), the cover plate (2) is penetrated by a spring core shaft (4), a stiffness adjustment spring (5) is sleeved on the spring core shaft (4), and a connecting frame (6) is fixedly connected to the lower end of the spring core shaft (4).

2. A suspended tuned mass damper vibration control device according to claim 1, characterized in that: A damper (7) is fixedly connected to the lower end of the connecting frame (6), and a reference spring is sleeved on the damper (7).

3. A suspended tuned mass damper vibration control device according to claim 2, characterized in that: A connecting device frame (8) is fixedly connected to the upper portion of the mass block housing (1); a movable groove (9) is provided on the connecting device frame (8); a pull rod (10) passes through the movable groove (9); and an arc-shaped limit block (11) is fixedly connected to the end of the pull rod (10).

4. A suspended tuned mass damper vibration control device according to claim 3, characterized in that: A tensioning spring (12) is sleeved on the pull rod (10), and the tensioning spring (12) is arranged between the arc-shaped limit block (11) and the connecting device frame (8).

5. A suspended tuned mass damper vibration control device according to claim 4, characterized in that: The side surface of the cover plate (2) is provided with a slot which matches the arc-shaped limiting block (11).

6. A suspended tuned mass damper vibration control device according to claim 5, characterized in that: The damper (7) is fixedly connected to an internal mounting plate (13) at the lower part, and a rigid suspension rod (14) penetrating the cover plate (2) is fixedly connected to the internal mounting plate (13). The upper end of the rigid suspension rod (14) is fixedly connected to a top plate (15), and a hexagonal bolt (16) is screwed onto the rigid suspension rod (14).

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