Magnetorheological elastomer type coupling beam damper

Abstract

The invention relates to the technical field of dampers, and discloses a magneto-rheological elastomer type coupling beam damper which comprises a damper body and a combined mechanism, the bottom of the damper body is fixedly connected with a base, a mounting hole is formed in the base, the interior of the damper body is slidably connected with a movable rod, and the movable rod is fixedly connected with the damper body. A wire is fixedly connected to the outer side of the movable rod, a combination hole is fixedly connected to one end of the movable rod, an assembling mechanism is arranged outside the combination hole and comprises an assembling plate, and a plurality of anchor rods are fixedly connected to the top of the assembling plate. By adopting the special connection design, the assembly plate and the building wall surface are tightly connected in a pouring mode, meanwhile, the arc-shaped clamping blocks are used for clamping, the check rings are used for filling gaps, the limiting plates are used for stabilizing the nuts, all parts of the damper are tightly and firmly connected, the installation mode is more reliable than a traditional expansion bolt, and the structure can be kept stable under strong impact such as earthquakes.

Description

Technical Field

[0001] The invention relates to the technical field of dampers, in particular to a magnetorheological elastomer type connecting beam damper. Background Art

[0002] In the field of building seismic resistance, magnetorheological elastomer beam-type dampers have received widespread attention in recent years. With the acceleration of urbanization, high-rise buildings continue to emerge, which puts higher requirements on the safety and stability of building structures under disasters such as earthquakes. Traditional passive dampers have certain limitations when facing complex and changeable seismic conditions. Magnetorheological elastomer beam-type dampers, due to their unique magnetorheological effect, can quickly adjust the damping force according to changes in the magnetic field, providing a new solution for building structure shock absorption, and gradually becoming a hot spot for research and application.

[0003] At present, magnetorheological elastomer type beam damper is usually composed of magnetorheological elastomer material, excitation coil, connecting parts, etc. Its working principle is based on the magnetorheological effect. When the excitation coil is energized to generate a magnetic field, the magnetic particles in the magnetorheological elastomer will be arranged along the direction of the magnetic field, causing the stiffness and damping performance of the material to change, thereby generating damping force and dissipating energy when the building structure vibrates. In practical applications, by installing the damper on the beam, its damping characteristics are used to reduce the deformation and energy transfer of the beam under earthquake action.

[0004] However, there are still some problems with the existing magnetorheological elastomer type beam-connecting damper. For example, in an earthquake simulation test of a high-rise office building, when encountering a strong earthquake, the connection parts of the damper became loose. This is because the existing connection structures mostly use simple bolt connections or welding methods. Under long-term vibration and impact, the connection parts are prone to fatigue damage, and it is impossible to ensure that the damper can work stably throughout the earthquake. Therefore, the present invention provides a magnetorheological elastomer type beam-connecting damper to solve the shortcomings of the prior art. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a magnetorheological elastomer connecting beam damper, which solves the problem that the connection structure of the magnetorheological elastomer connecting beam damper in the prior art is assembled with expansion bolts or simply welded, which is prone to loosening under multiple vibrations and impacts, making it difficult for the damper to perform its effect.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a magnetorheological elastomer connecting beam damper, including a damper body and a combination mechanism, the bottom of the damper body is fixedly connected to a base, a mounting hole is opened inside the base, a movable rod is slidably connected to the inside of the damper body, an electric wire is fixedly connected to the outside of the movable rod, one end of the movable rod is fixedly connected to a combination hole, an assembly mechanism is arranged outside the combination hole, the combination mechanism includes an assembly plate, a plurality of anchor rods are fixedly connected to the top of the assembly plate, and a plurality of T-shaped columns are fixedly connected to the bottom of the assembly plate.

[0007] Preferably, the top of the assembly plate is in contact with the building wall, the anchor rod is installed inside the building wall, and the outside of the T-shaped column is sleeved with a stop ring.

[0008] Preferably, the assembly mechanism includes a rotating component and an assembling component, the rotating component includes a combination seat, the combination seat is rotatably connected to the inner side of the combination hole, the outer side of the combination seat is fitted with the outer side of the connecting head, one end of the combination seat is fixedly connected to a cover plate, and the outer side of the cover plate is fitted with the outer side of the connecting head.

[0009] Preferably, the outer side of the combination seat is fixedly connected to a support seat, and the outer side of the support seat is in contact with the outer side of the connecting head.

[0010] Preferably, the assembly component comprises a connecting plate, and the bottom of the connecting plate is fixedly connected to the outer side of the support seat.

[0011] Preferably, a plurality of groups of fixing rods are fixedly connected to the top of the connecting plate, and an assembly rod is fixedly connected inside each group of fixing rods.

[0012] Preferably, the outer sleeve of the assembly rod is provided with a plurality of stop rings 2, the outer side of the assembly rod is threadedly connected with a plurality of nuts, the outer side of the assembly rod is slidably connected with a plurality of ear plates, and an arc-shaped clamping block is fixedly connected between two of the ear plates.

[0013] Preferably, the inner side of the arc-shaped clamping block fits with the outer side of the T-shaped column, and the outer side of the arc-shaped clamping block fits with the outer side of the stop ring 1. A plurality of U-shaped limit plates are provided on the outside of the assembly rod, and the outer side of the U-shaped limit plates contacts with the outer side of the stop ring 2.

[0014] The present invention provides a magnetorheological elastomer type beam damper, which has the following beneficial effects:

[0015] 1. The present invention adopts a special connection design, and the assembly plate is tightly connected to the building wall by casting. At the same time, the arc-shaped clamp is used to clamp, the stop ring fills the gap, and the limit plate stabilizes the nut, so that the connection between the damper components is tight and firm. This installation method is more reliable than traditional expansion bolts, and can maintain structural stability under strong impacts such as earthquakes, ensure that the damper continues to work normally, and effectively respond to earthquake threats.

[0016] 2. In the present invention, when an earthquake occurs, the vibration of the connecting beam will drive the movable parts of the damper to move. At this time, the damper uses the characteristics of magnetorheological elastomer to generate a strong damping force, quickly converting the mechanical energy input by the earthquake into heat energy and other forms of dissipation, greatly reducing the vibration amplitude of the connecting beam and reducing the energy transfer to the building structure, thereby effectively protecting the main body of the building and reducing the damage to the building caused by the earthquake. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 It is a schematic diagram of the assembly plate structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the connecting plate structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the U-shaped limiting plate of the present invention.

[0021] Among them, 1. Damper body; 2. Base; 3. Mounting hole; 4. Movable rod; 5. Wire; 6. Connector; 7. Combination hole; 8. Combination seat; 9. Cover plate; 10. Support seat; 11. Connecting plate; 12. Assembly plate; 13. Anchor rod; 14. T-shaped column; 15. Stop ring 1; 16. Fixing rod; 17. Assembly rod; 18. Arc clamp; 19. Ear plate; 20. Stop ring 2; 21. Nut; 22. U-shaped limit plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Please refer to the attached Figure 1 -Attached Figure 4The embodiment of the present invention provides a magnetorheological elastomer type beam-connecting damper, including a damper body 1 and a combination mechanism. The damper body 1 is the core part of the whole device, and a base 2 is fixedly connected to the bottom thereof. The base 2 plays the role of supporting and fixing the damper body 1. In order to facilitate the installation of the damper at a suitable position of the building beam-connecting beam, a mounting hole 3 is provided inside the base 2. During the actual installation, the construction personnel can use auxiliary parts such as bolts to pass through the mounting hole 3 to firmly fix the base 2 at the designated position outside the building beam-connecting beam, so as to ensure that the damper body 1 can stably exert its shock absorption performance. The damper body 1 is slidably connected to a movable rod 4 inside, and the movable rod 4 can slide inside the damper body 1. The outer side of the movable rod 4 is fixedly connected to an electric wire 5, which is mainly used to provide power to components such as the excitation coil in the magnetorheological elastomer type beam-connecting damper to generate the required magnetic field, thereby changing the mechanical properties of the magnetorheological elastomer. One end of the movable rod 4 is fixedly connected to a combination hole 7, and the combination hole 7 is used to connect and cooperate with the subsequent assembly mechanism.

[0024] The assembly mechanism includes an assembly plate 12, which plays an important role in connection and fitting in the entire damper installation. A plurality of anchor rods 13 are fixedly connected to the top of the assembly plate 12, and a plurality of T-shaped columns 14 are fixedly connected to the bottom of the assembly plate 12. During the installation process, the top of the assembly plate 12 needs to fit the building wall. At this time, the anchor rods 13 are installed inside the building wall. Direct casting is usually used to form an integrated structure with the building, which can enhance the connection stability between the assembly plate 12 and the building structure. A stop ring 15 is provided on the outside of the T-shaped column 14, which plays a key role in the subsequent assembly process. The assembly mechanism includes a rotating component and an assembly component. The rotating component includes a combination seat 8, which is rotatably connected to the inner side of the combination hole 7. This rotatable connection method allows the combination seat 8 to rotate flexibly in the combination hole 7, and it is convenient to adjust the angle to meet different installation requirements. The outer side of the combination seat 8 fits with the outer side of the connector 6, one end of the combination seat 8 is fixedly connected with a cover plate 9, the outer side of the cover plate 9 fits with the outer side of the connector 6, and the outer side of the combination seat 8 is also fixedly connected with a support seat 10, and the outer side of the support seat 10 also fits with the outer side of the connector 6. These fitting structures can ensure the tightness and stability of the rotating component during the connection and matching process. The assembly component includes a connecting plate 11, the bottom of which is fixedly connected to the outer side of the support seat 10, so that the connecting plate 11 and the rotating component form a whole. The top of the connecting plate 11 is fixedly connected with multiple groups of fixed rods 16, and the inside of each group of fixed rods 16 is fixedly connected with an assembly rod 17. The outer side of the assembly rod 17 is sleeved with multiple retaining rings 20, the outer side of the assembly rod 17 is threadedly connected with multiple nuts 21, and the outer side of the assembly rod 17 is slidably connected with multiple ear plates 19. An arc-shaped clamping block 18 is fixedly connected between the two ear plates 19 , the inner side of the arc-shaped clamping block 18 is in contact with the outer side of the T-shaped column 14 , and the outer side of the arc-shaped clamping block 18 is in contact with the outer side of the stop ring 15 .

[0025] Specifically, during installation, the damper body 1 is first placed at a suitable position outside the building's connecting beam, and then the base 2 is fixed through the mounting hole 3 using auxiliary parts such as bolts to complete the preliminary positioning of the damper body 1. Then the assembly plate 12 is pressed against the outside of the connecting beam, and the anchor rod 13 is fixed inside the building by pouring, so that the assembly plate 12 is firmly combined with the building structure. After that, the connection plate 11 and the assembly plate 12 are docked, so that the bottom of the T-shaped column 14 fits with the top of the connection plate 11. At this time, the two arc-shaped clamping blocks 18 are respectively located on the outside of the corresponding T-shaped column 14. The construction personnel bring the two arc-shaped clamping blocks 18 closer to the T-shaped column 14, and then turn the nut 21. Since the nut 21 is threadedly connected to the assembly rod 17, turning the nut 21 will make the two ear plates 19 approach each other, and then the two arc-shaped clamping blocks 18 clamp the T-shaped column 14. In this process, the stop ring 15 can fill the gap between the arc-shaped clamping block 18 and the assembly plate 12 to ensure the tightness of the connection. Finally, the U-shaped limit plate 22 is placed outside the assembly rod 17, and the outer side of the U-shaped limit plate 22 contacts the outer side of the stop ring 20. This cooperation can ensure that the position of the nut 21 is stable, and the nut 21 will not loosen even under the impact of earthquakes. Through the close cooperation between the multiple arc-shaped clamping blocks 18 and the T-shaped column 14, the connection between the connecting plate 11 and the assembly plate 12 is tighter. Compared with the traditional installation method using expansion bolts, this installation method is more reliable and can ensure that the damper body 1 can stably play its role when an earthquake occurs. When the building is affected by an earthquake, the connecting beam will vibrate and deform, driving the movable rod 4 to slide in the damper body 1. At this time, the wire 5 supplies power to the excitation coil to generate a magnetic field, changing the mechanical properties of the magnetorheological elastomer, so that the damper generates a larger damping force, converting the mechanical energy input by the earthquake into other forms of energy such as heat energy and dissipating it, thereby effectively reducing the vibration amplitude and energy transfer of the connecting beam and protecting the safety of the building structure.

[0026] Working principle: First, place the damper body 1 on the outside of the building's connecting beam, then use other auxiliary parts to pass through the mounting hole 3 to fix the position of the base 2, the assembly plate 12 is used to fit the outside of the connecting beam, the anchor rod 13 is installed inside the building, directly cast into an integrated type, and then the connecting plate 11 is used to dock with the assembly plate 12, so that the bottom of the T-shaped column 14 fits with the top of the connecting plate 11, and the two arc-shaped clamping blocks 18 are respectively located on the outside of the corresponding T-shaped column 14, and then the two arc-shaped clamping blocks 18 are moved closer to the T-shaped column 14, and then the nut 21 is turned to make the two ear plates 19 close to each other, so that the two arc-shaped clamping blocks 18 can clamp the T-shaped column 14, and the stop ring is 15 can fill the gap between the arc-shaped clamping block 18 and the assembly plate 12. Finally, the U-shaped limit plate 22 is placed on the outside of the assembly rod 17. The stop ring 20 can ensure that the position of the nut 21 is stable and will not loosen even if it is impacted. In addition, the cooperation between the multiple arc-shaped clamping blocks 18 and the T-shaped column 14 makes the connection between the connecting plate 11 and the assembly plate 12 tighter, which is more reliable than the traditional installation method using expansion bolts. In this way, the damper body 1 can stably play its role when an earthquake occurs, and the mechanical energy input by the earthquake is converted into other forms of energy such as heat energy and dissipated, thereby reducing the vibration amplitude and energy transfer of the connecting beam and protecting the building structure.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetorheological elastomer type beam damper, comprising a damper body (1) and a combination mechanism, characterized in that: The bottom of the damper body (1) is fixedly connected to a base (2), a mounting hole (3) is provided inside the base (2), a movable rod (4) is slidably connected inside the damper body (1), an electric wire (5) is fixedly connected to the outer side of the movable rod (4), one end of the movable rod (4) is fixedly connected to a combination hole (7), an assembly mechanism is provided outside the combination hole (7), and the assembly mechanism includes an assembly plate (12), a plurality of anchor rods (13) are fixedly connected to the top of the assembly plate (12), and a plurality of T-shaped columns (14) are fixedly connected to the bottom of the assembly plate (12).

2. The magnetorheological elastomer type connecting beam damper according to claim 1, characterized in that: The top of the assembly plate (12) is in contact with the building wall, the anchor rod (13) is installed inside the building wall, and the outside of the T-shaped column (14) is sleeved with a stop ring (15).

3. The magnetorheological elastomer type connecting beam damper according to claim 1, characterized in that: The assembly mechanism comprises a rotating component and an assembling component, wherein the rotating component comprises a combination seat (8), wherein the combination seat (8) is rotatably connected to the inner side of the combination hole (7), wherein the outer side of the combination seat (8) is in contact with the outer side of the connecting head (6), and wherein one end of the combination seat (8) is fixedly connected to a cover plate (9), wherein the outer side of the cover plate (9) is in contact with the outer side of the connecting head (6).

4. The magnetorheological elastomer type connecting beam damper according to claim 3, characterized in that: The outer side of the combination seat (8) is fixedly connected to a support seat (10), and the outer side of the support seat (10) is in contact with the outer side of the connecting head (6).

5. The magnetorheological elastomer type connecting beam damper according to claim 3, characterized in that: The assembly component comprises a connecting plate (11), the bottom of which is fixedly connected to the outer side of the supporting seat (10).

6. The magnetorheological elastomer type connecting beam damper according to claim 5, characterized in that: A plurality of groups of fixing rods (16) are fixedly connected to the top of the connecting plate (11), and an assembly rod (17) is fixedly connected inside each group of fixing rods (16).

7. The magnetorheological elastomer type connecting beam damper according to claim 6, characterized in that: The outer portion of the assembly rod (17) is sleeved with a plurality of retaining rings (20), the outer side of the assembly rod (17) is threadedly connected with a plurality of nuts (21), the outer side of the assembly rod (17) is slidably connected with a plurality of ear plates (19), and an arc-shaped clamping block (18) is fixedly connected between two of the ear plates (19).

8. The magnetorheological elastomer type connecting beam damper according to claim 7, characterized in that: The inner side of the arc-shaped clamping block (18) is in contact with the outer side of the T-shaped column (14), and the outer side of the arc-shaped clamping block (18) is in contact with the outer side of the first stop ring (15). A plurality of U-shaped limiting plates (22) are arranged on the outside of the assembly rod (17), and the outer side of the U-shaped limiting plates (22) is in contact with the outer side of the second stop ring (20).

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