Multi-tuned mass damper device

Abstract

The utility model discloses a multi-tuned mass damper device which is characterized by comprising a device shell, a plurality of tuned mass dampers and a plurality of tuned mass dampers, the double-rod linear sliding rail is horizontally installed on a bottom plate in the device shell, and two independent sliding blocks are connected to a single sliding rail of the double-rod linear sliding rail in a sliding mode; hook rings are symmetrically installed on the two sides of the mass block, the mass block is fixedly connected with the four sliding blocks on the double-rod linear sliding rail, and the two ends of the mass block are connected with the two sides of the device shell through extension springs correspondingly; and the plurality of permanent magnet groups are arranged in the device shell, and the plurality of permanent magnet groups are uniformly distributed on the two sides of the mass block. According to the multi-tuned mass damper device, the influence of wind vibration is solved, and the influence of the wind vibration on the signal tower can be effectively weakened through the installation of the multi-tuned mass damper device when the long and thin signal tower is subjected to the wind action.

Description

Technical Field

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

[0002] Communication towers are typical wind-sensitive structures. Wind load is one of the control loads of their structural design. Their wind effects have the characteristics of multi-load forms and multi-mode responses. With the continuous improvement and promotion of 5G communication technology, the construction of communication towers is becoming more and more vigorous, and higher requirements are also placed on their structural reliability. In order to effectively enhance communication signals, the height of communication towers continues to increase, resulting in a decrease in their structural stiffness and natural frequency. Under the action of wind loads, it is easier to produce significant dynamic response and deformation, resulting in frequent wind damage accidents of communication tower structures. In recent years, some signal towers have used tuned liquid dampers (TLCDIs) to control the wind vibration response of their signal towers. Although a certain vibration reduction effect can be achieved, the heat dissipation of some signal devices on the signal towers is limited due to the large area occupied by the water tank.

[0003] Of course, in order to solve this problem, the prior art has also proposed corresponding means to solve it, such as the dual-tuned liquid column damper with application number: CN201410486591.8, which uses a tuned liquid damper (TLCDI) to control the wind vibration response of its signal tower. Its disadvantages are that the liquid damper requires high-performance liquid, which increases the cost, and liquid leakage affects the performance of the equipment. In addition, TLCDI has low adaptability to the environment and is greatly affected by temperature, humidity and air pressure. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and / or disadvantages and to provide at least the advantages to be described below.

[0005] In order to achieve these objectives and other advantages according to the utility model, a multiple tuned mass damper device is provided, comprising:

[0006] Device housing;

[0007] A double-rod linear slide rail is horizontally mounted on a bottom plate in the housing of the device, and two independent sliders are slidably connected to a single slide rail of the double-rod linear slide rail;

[0008] A mass block, with hook rings symmetrically installed on both sides, the mass block is fixedly connected to the four sliders on the double-rod linear slide rail, and the two ends of the mass block are respectively connected to the two sides of the device housing through tension springs;

[0009] A plurality of permanent magnet groups are arranged in the device housing, and the plurality of permanent magnet groups are evenly distributed on both sides of the mass block.

[0010] Preferably, the double-rod linear slide rail is fixed to the base plate via mounting hole bolts.

[0011] Preferably, the double-rod linear slide rail has two independent sliders slidably connected to a single rod, for a total of four sliders.

[0012] Preferably, the mass block is an iron block, and the mass block is connected to the sliding block by bolts.

[0013] Preferably, the plurality of permanent magnet groups include:

[0014] The first permanent magnet is arranged on the bottom plate of the device housing, and the second permanent magnet is arranged on the top of the device housing. The first permanent magnet and the second permanent magnet are placed opposite to each other to form a first group of permanent magnets, and the first group of permanent magnets is located on the side of the double-rod linear slide rail.

[0015] The second group of permanent magnets is symmetrically installed with the first group of permanent magnets about the double-rod linear slide rail, the third group of permanent magnets and the fourth group of permanent magnets are symmetrically installed with the first group of permanent magnets and the second group of permanent magnets about the mass block, and the four groups of permanent magnets are evenly distributed on both sides of the mass block;

[0016] The width of the permanent magnet 1 is equal to the width of the mass block, and the permanent magnet is installed in the device housing by bolts.

[0017] Preferably, hooks are provided at both ends of the tension spring.

[0018] Preferably, the bolt is a hexagon head bolt.

[0019] The utility model at least has the following beneficial effects:

[0020] A multiple tuned mass damper device has a simple structure, occupies a small area and is widely used in vibration control of high-rise structures. The composition of the electromagnetic structure greatly reduces the impact of the environment on it, and the cost is low. Each component can be disassembled, and equipment replacement only requires replacing damaged components to save costs. The multiple tuned mass damper devices installed in four directions of the signal tower work simultaneously, which can effectively reduce the impact of wind vibration on the signal tower.

[0021] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0024] Figure 3 For this utility model Figure 2 AA section view;

[0025] Figure 4 For this utility model Figure 2 BB cross-sectional view;

[0026] Figure 5 This is a schematic diagram of the connection position between the utility model and the signal tower;

[0027] In the figure: 1. device housing; 2. bottom plate; 3. double-rod linear slide; 4. slider; 5. mass block; 6. tension spring; 7. permanent magnet 1; 8. hook; 9. hook; 10. mounting hole; 11. permanent magnet 2. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0029] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0030] It should be noted that in the description of the present invention, the orientation or position relationship indicated by the term is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0032] In addition, in the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] The following is a detailed description of this experimental novelty with reference to the accompanying drawings:

[0034] Figure 1-5 A multi-tuned mass damper device of the utility model is shown, comprising:

[0035] Device housing 1;

[0036] A double-rod linear slide 3 is horizontally mounted on the bottom plate 2 in the device housing 1, and two independent sliders 4 are slidably connected to a single slide rail of the double-rod linear slide 3;

[0037] The mass block 5 has hook rings 8 symmetrically installed on both sides thereof, the mass block 5 is fixedly connected to the four sliders 4 on the double-rod linear slide rail 3, and the two ends of the mass block 5 are respectively connected to the two sides of the device housing 1 through tension springs 6;

[0038] A plurality of permanent magnet groups are arranged in the device housing 1 , and the plurality of permanent magnet groups are evenly distributed on both sides of the mass block 5 .

[0039] Working principle:

[0040] The device is a multiple tuned mass damper device connected to the signal tower by bolts (welding). When the slender signal tower responds to wind vibration, the multiple tuned mass damper devices in four directions on the signal tower will slide accordingly.

[0041] The slider 4 in the single multi-tuned mass damper device reciprocates back and forth on the double-rod linear guide 3, and the tension spring 6 connected to the two ends of the mass block 5 begins to stretch and contract. At this time, the tension spring 6 provides the necessary damping force and restoring force through deformation, thereby reducing the sliding of the mass block 5.

[0042] Furthermore, the mass block 5 reciprocates back and forth on the double-rod linear guide 3. Through the multiple groups of permanent magnets arranged at both ends, the mass block 5, which is an iron block, passes through the magnetic induction interval, generating an electromagnetic damping force to further limit the shaking of the mass block 5, thereby consuming part of the vibration energy to achieve the effect of vibration reduction and energy consumption.

[0043] In the overall structure of the signal tower, the two vertical multiple tuned mass damper devices will slide back and forth, producing relative displacement with the tower body, and the two horizontal multiple tuned mass damper devices will slide left and right, producing relative displacement with the tower body. The four multiple tuned mass damper devices work simultaneously to control the vibration of the tower body within an appropriate range, thereby weakening the impact of wind vibration response on the slender signal tower.

[0044] As in the above solution, the double-rod linear guide rail 3 is fixed to the base plate 2 via the mounting holes 10 with bolts.

[0045] Working principle:

[0046] The double-rod linear slide 3 is fixed to the base plate 2 with bolts and nuts by arranging mounting holes 10 on both sides of the slide; the double-rod linear slide 3 has excellent linearity, and adopts guide rail linear sliding to ensure the flatness and linearity of the slider 4, and can achieve high-precision linear motion; at the same time, it has strong load-bearing capacity, supports multi-directional loads, withstands loads of a certain mass, and ensures stable motion and service life.

[0047] As in the above solution, the double-rod linear slide rail 3 has two independent sliders 4 slidably connected on a single rod, for a total of four sliders 4 .

[0048] Working principle:

[0049] The slender signal tower responds to wind vibration. The slider 4 contacts the slide surface on the guide rail to achieve smooth movement along the guide rail and has a high load capacity. The slider 4 can achieve precise position adjustment and motion control. By changing the contact point between the slider 4 and the guide rail, the reciprocating motion or stop position can be positioned on the double-rod linear slide rail 3. Single damage does not affect the operation of the device, and an independent slider 4 is more convenient than replacing the entire slider, saving costs.

[0050] As in the above solution, the mass block 5 is an iron block, and the mass block 5 is connected to the slider 4 by bolts.

[0051] Working principle:

[0052] The iron mass block 5 makes a reciprocating motion on the double-rod linear slide rail 3. Through the four permanent magnet groups arranged at both ends, the electromagnetic damping force generated by the two groups consumes part of the vibration energy to achieve the effect of vibration reduction and energy consumption;

[0053] The mass block 5 is detachably connected to the slider 4 by bolts. By replacing different mass blocks 5, the corresponding vibration reduction effect of the multi-tuned mass damper device can be better, thereby reducing the wind vibration response of the structure under wind load, absorbing and consuming the vibration energy of the main structure, and achieving the purpose of reducing its wind vibration response.

[0054] As in the above solution, the plurality of permanent magnet groups include:

[0055] The permanent magnet 1 7 is arranged on the bottom plate 2 inside the device housing 1, and the permanent magnet 2 11 is arranged on the top inside the device housing 1. The permanent magnet 1 7 and the permanent magnet 2 11 are placed opposite to each other to form a first group of permanent magnets, and the first group of permanent magnets is located on the side of the double-rod linear slide rail 3;

[0056] The second group of permanent magnets is symmetrically installed with the first group of permanent magnets about the double-rod linear slide rail 3, the third group of permanent magnets and the fourth group of permanent magnets are symmetrically installed with the first group of permanent magnets and the second group of permanent magnets about the mass block 5, and the four groups of permanent magnets are evenly distributed on both sides of the mass block 5;

[0057] The width of the permanent magnet 1 is equal to the width of the mass block 5 , and the permanent magnet is installed in the device housing 1 by bolts.

[0058] Working principle:

[0059] The iron mass block 5 makes a reciprocating motion on the double-rod linear slide rail 3. Through the four sets of permanent magnets arranged at both ends, the electromagnetic damping force generated by the two consumes part of the vibration energy to achieve the effect of vibration reduction and energy consumption;

[0060] Among them, the permanent magnet poles are required to be a group from top to bottom, such as permanent magnet one 7 and permanent magnet two 11. If permanent magnet one 7 is the S pole, permanent magnet two 11 is the N pole, or permanent magnet one is the N pole, permanent magnet two is the S pole, ensuring that the upper and lower permanent magnet poles are opposite, and the permanent magnets at the same top or the same bottom have the same poles.

[0061] The width of the permanent magnet is the same as that of the mass block 5. The range in which the mass block 5 can move back and forth is limited. Two groups are arranged at one end to ensure that the electromagnetic resistance generated by Lenz's law is maximized in efficiency and the vibration reduction effect is best.

[0062] The permanent magnet group is installed in the device housing 1 by bolts and nuts, and the connection is detachable. The magnets can be replaced to change the electromagnetic damping size and achieve different vibration reduction effects.

[0063] As in the above solution, hooks 9 are provided at both ends of the tension spring 6 .

[0064] Working principle: The hooks 8 at both ends of the mass block 5 are connected to the hooks 9 of the tension spring 6. This connection method is convenient for replacing different mass blocks 5 and springs.

[0065] As in the above solution, the bolt is a hexagonal head bolt.

[0066] Working principle:

[0067] The bolts are preferably hexagonal head bolts, which connect various components and accessories of the multiple tuned mass damper device, are usually made of high-strength metal and have a hexagonal head to facilitate installation and removal.

[0068] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A multiple tuned mass damper device, characterized in that: include: Device housing; A double-rod linear slide rail is horizontally mounted on a bottom plate in the housing of the device, and two independent sliders are slidably connected to a single slide rail of the double-rod linear slide rail; A mass block, with hook rings symmetrically installed on both sides, the mass block is fixedly connected to the four sliders on the double-rod linear slide rail, and the two ends of the mass block are respectively connected to the two sides of the device housing through tension springs; A plurality of permanent magnet groups are arranged in the device housing, and the plurality of permanent magnet groups are evenly distributed on both sides of the mass block.

2. The multiple tuned mass damper device according to claim 1, characterized in that: The double-rod linear slide rail is fixed on the base plate through mounting hole bolts.

3. The multiple tuned mass damper device according to claim 1, characterized in that: The double-rod linear slide rail has two independent sliders slidably connected on a single rod, for a total of four sliders.

4. The multiple tuned mass damper device according to claim 1, characterized in that: The mass block is an iron block, and the mass block is connected to the sliding block via bolts.

5. The multiple tuned mass damper device according to claim 1, characterized in that: The plurality of permanent magnet groups include: a permanent magnet 1 arranged on the bottom plate inside the device housing, a permanent magnet 2 arranged on the top inside the device housing, the permanent magnet 1 and the permanent magnet 2 being arranged opposite to each other to form a first group of permanent magnets, and the first group of permanent magnets being located on the side of the double-rod linear slide rail; The second group of permanent magnets is symmetrically installed with the first group of permanent magnets about the double-rod linear slide rail, the third group of permanent magnets and the fourth group of permanent magnets are symmetrically installed with the first group of permanent magnets and the second group of permanent magnets about the mass block, and the four groups of permanent magnets are evenly distributed on both sides of the mass block; The width of the permanent magnet 1 is equal to the width of the mass block, and the permanent magnet is installed in the device housing by bolts.

6. The multiple tuned mass damper device according to claim 1, characterized in that: Hooks are arranged at both ends of the stretch spring.

7. The multiple tuned mass damper device according to claim 4 or 5, characterized in that: The bolts are hexagonal head bolts.

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