A composite electromagnetic multi-dimensional seismic isolation device

Abstract

This invention belongs to the field of vibration reduction and isolation technology, specifically relating to a composite electromagnetic multi-dimensional vibration isolation device. It includes a damping pad with support rods on both sides. Each support rod is fitted with a first and second sleeve assembly that can slide up and down. A vertical vibration isolation mechanism is located at the top of the damping pad, between the two support rods. The device also includes a first, second, third, fourth, fifth, and sixth rod, with a horizontal vibration isolation mechanism between each support rod and its corresponding outer wall. This invention can effectively absorb and disperse vibration energy, reducing the impact of vibration on the building structure, thereby preventing vibration damage and providing multiple effects against vibration.

Description

Technical Field

[0001] This invention belongs to the field of vibration reduction and isolation technology, specifically relating to a composite electromagnetic multi-dimensional vibration isolation device. Background Technology

[0002] To improve the comfort and seismic safety of buildings affected by subway vibrations, scholars both domestically and internationally have successively researched and developed many seismic isolation and damping products. Among them, rubber seismic isolation bearings and disc springs have been widely used in the field of seismic isolation for buildings around subway stations. Thick-walled rubber bearings and sandbag pads can also effectively improve the comfort of buildings under vertical vibrations. However, these seismic isolation methods or products can only reduce the vibrations of buildings above subway stations or buildings along rail transit lines caused by train operation; they cannot effectively reduce the impact of seismic forces and other external loads. Recognizing this, in recent years, scholars have proposed three-dimensional seismic isolation and damping systems to address the problem of vibration reduction under the coupled effects of earthquakes and subway vibrations.

[0003] However, a prominent drawback of existing three-dimensional seismic isolation bearings is that their energy dissipation modes are relatively simple, resulting in low efficiency in vibration reduction and energy dissipation. Therefore, this invention proposes to improve the efficiency by using multiple energy dissipation mechanisms.

[0004] In view of this, the inventors provide a composite electromagnetic multi-dimensional vibration isolation device to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and propose a composite electromagnetic multi-dimensional vibration isolation device. This device comprises a vertical vibration isolation mechanism, a horizontal vibration isolation mechanism, and multiple first sleeve assemblies, second sleeve assemblies, support rods, and rods that connect the vertical and horizontal vibration isolation mechanisms into a single unit. Under vertical vibration, the vertical vibration isolation mechanism operates; under lateral vibration, the vertical and horizontal vibration isolation mechanisms work together, achieving multi-dimensional vibration reduction. This device provides multiple effects against vibration.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a composite electromagnetic multi-dimensional vibration isolation device, including a damping pad, with support rods on the left and right sides of the damping pad, and a first sleeve assembly and a second sleeve assembly that can slide up and down on each support rod. A vertical vibration isolation mechanism is provided on the top of the damping pad between the two support rods.

[0008] It also includes a first rod, a second rod, a third rod, a fourth rod, a fifth rod, and a sixth rod. One end of the first rod is sleeved on the first sleeve assembly on the left side, and the other end is slidably hinged to the vertical vibration isolation mechanism. One end of the second rod is sleeved on the first sleeve assembly on the right side, and the other end is slidably hinged to the vertical vibration isolation mechanism. One end of the third and fourth rods is hinged together on one side of the vertical vibration isolation mechanism, and the other ends are respectively sleeved on the first and second sleeve assemblies on the left side. One end of the fifth and sixth rods is hinged together on opposite sides of the vertical vibration isolation mechanism, and the other ends are respectively sleeved on the first and second sleeve assemblies on the right side.

[0009] Each of the support rods is provided with a horizontal vibration isolation mechanism between itself and the corresponding outer wall.

[0010] Furthermore, the vertical vibration isolation mechanism includes, from bottom to top, a first magnetorheological elastomer, a first spring assembly, a first magnet, a first damping assembly, a second spring assembly, a second magnet, a third spring assembly, and a second damping assembly, which are arranged sequentially on the top of the damping pad;

[0011] The second damping component includes a second magnetorheological elastomer. Both ends of the second magnetorheological elastomer are connected to corresponding support rods through first dampers. The first rod and the second rod are both hinged to the second magnetorheological elastomer.

[0012] Furthermore, the bottom surface of the second magnetorheological elastomer is provided with a first groove and a second groove spaced apart. The first groove is provided with a first elastic element and a first slider that can move along the length direction of the first groove, and the first rod is hinged to the first slider. The second groove is provided with a second elastic element and a second slider that can move along the length direction of the second groove, and the second rod is hinged to the second slider.

[0013] Furthermore, the first damping component includes a cavity, one end of the third and fourth rods is hinged to one side of the cavity, and one end of the fifth and sixth rods is hinged to the opposite side of the cavity;

[0014] The second spring assembly is located at the top of the cavity, the first magnet is located at the bottom of the cavity, and the cavity is filled with a viscous liquid.

[0015] Furthermore, the first damping assembly also includes a seventh rod, an eighth rod, and a first rotating damping member and a second rotating damping member disposed within the cavity;

[0016] One end of the seventh rod is hinged to the first slider together with the first rod, and the other end extends into the cavity and is hinged to the first nut; one end of the eighth rod is hinged to the second slider together with the second rod, and the other end extends into the cavity and is hinged to the second nut;

[0017] The first nut is mounted on the first rotating damper and can reciprocate along the axial direction of the first rotating damper, thereby driving the first rotating damper to rotate. The second nut is mounted on the second rotating damper and can reciprocate along the axial direction of the second rotating damper, thereby driving the second rotating damper to rotate.

[0018] Furthermore, the first and second rotational damping components have the same structure;

[0019] The first rotating damping component includes a first screw, the top end of which is connected to the top end of the cavity via a bearing, and the bottom end of which is connected to the bottom end of the cavity via a bearing. The first nut is mounted on the first screw, and a limit block is provided on the first screw above the first nut to limit the upward movement range of the first nut. A ring is connected on the first screw below the first nut, and multiple fan blades are connected to the outer circumference of the ring.

[0020] Furthermore, each of the horizontal isolation mechanisms has the same structure;

[0021] The horizontal vibration isolation mechanism between the support rod on the left and the outer wall on the left includes a ninth rod, a tenth rod, a fourth spring assembly, and multiple second dampers. One end of the ninth and tenth rods is hinged to one end of the fourth spring assembly. The other end of the ninth rod is sleeved on the first sleeve assembly on the left, and the other end of the tenth rod is sleeved on the second sleeve assembly on the left. The other end of the fourth spring assembly is connected to the outer wall on the left. One end of each second damper is connected to the support rod, and the other end is connected to the outer wall.

[0022] Furthermore, the first sleeve assembly consists of a first sleeve and a plurality of first horizontal rods connected to the outer wall of the first sleeve; the first sleeve is sleeved on the support rod and can slide up and down along the support rod; one end of the first rod, the third rod, and the ninth rod on the left is sleeved on the corresponding first horizontal rod of the left first sleeve assembly; one end of the second rod, the fifth rod, and the ninth rod on the right is sleeved on the corresponding first horizontal rod of the right first sleeve assembly.

[0023] Furthermore, the second sleeve assembly consists of a second sleeve and a plurality of second horizontal rods connected to the outer wall of the second sleeve; the second sleeve is sleeved on the support rod and can slide up and down along the support rod, and is located below the first sleeve; one end of the fourth rod and the tenth rod on the left is sleeved on the corresponding second horizontal rod of the left second sleeve assembly; one end of the sixth rod and the tenth rod on the right is sleeved on the corresponding second horizontal rod of the right second sleeve assembly.

[0024] Furthermore, the inner surfaces of the first and second sleeves are coated with nanocomposite materials, which serve to dissipate energy through friction.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1) The present invention provides a composite electromagnetic multi-dimensional vibration isolation device, which, by setting up a vertical vibration isolation mechanism, a horizontal vibration isolation mechanism, and multiple first sleeve assemblies, second sleeve assemblies, support rods and rods that connect the vertical vibration isolation mechanism and the horizontal vibration isolation mechanism into an integral device, effectively absorbs and disperses the energy of vibration, reduces the impact of vibration on the building structure, and thus avoids the damage of vibration to the building structure. At the same time, both the vertical vibration isolation mechanism and the horizontal vibration isolation mechanism consume vibration through displacement friction with the support rods by multiple first sleeve assemblies and second sleeve assemblies.

[0027] Among them, multiple first sleeve assemblies, second sleeve assemblies, support rods and rods connect horizontal vibrations with vertical vibrations, so that the vibration reduction in both the horizontal and vertical directions achieves a high level of vibration reduction effect.

[0028] 2) The present invention provides a composite electromagnetic multi-dimensional vibration isolation device, including a vertical vibration isolation mechanism. The vertical vibration isolation mechanism includes a first damping component. The cavity of the first damping component is provided with a viscous liquid, a first rotating damping component, a second rotating damping component, a first nut sleeved on the first rotating damping component, and a second nut sleeved on the second rotating damping component. When vibration occurs, the first nut and the second nut move on the corresponding first rotating damping component and the second rotating damping component, respectively, so that the first rotating damping component and the second rotating damping component rotate in the viscous liquid. This converts the vibration energy in all directions into local rotation, reduces external vibration through frictional energy dissipation, and resets by its own force, greatly improving space utilization and vibration reduction effect.

[0029] 3) The present invention provides a composite electromagnetic multi-dimensional vibration isolation device. The vertical vibration isolation mechanism includes a second damping component, which includes a magnetorheological elastomer. Dampers are respectively set at both ends of the magnetorheological elastomer. When vibration is transmitted from the outside, the stiffness of the magnetorheological elastomer material is adjusted by changing the magnetic field strength, thereby changing the natural frequency of the structure, avoiding the occurrence of resonance, and reducing the damage of vibration to the overall structure. The magnetorheological elastomer has solid-state characteristics, is simple to maintain, and greatly reduces costs.

[0030] 4) The first and second sleeves are coated with a new type of friction energy dissipation material, which plays a role in friction energy dissipation and converts external vibration energy into internal heat energy. Attached Figure Description

[0031] The accompanying drawings are incorporated in and form part of this specification, and together with the description serve to explain the principles of the invention.

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the composite electromagnetic multi-dimensional vibration isolation device of the present invention;

[0034] Figure 2 This is a schematic diagram of the vertical seismic isolation mechanism of the composite electromagnetic multi-dimensional seismic isolation device of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure on the second magnetorheological elastic body of the composite electromagnetic multi-dimensional vibration isolation device of the present invention;

[0036] Figure 4 This is a schematic diagram of the first sleeve assembly of the composite electromagnetic multi-dimensional vibration isolation device of the present invention.

[0037] Where: 1 is the damping pad;

[0038] 2 is the support rod;

[0039] 3 represents the first sleeve assembly; 3-1 represents the first sleeve; 3-2 represents the first horizontal bar;

[0040] 4 represents the second sleeve assembly;

[0041] 5 represents the vertical vibration isolation mechanism; 5-1 represents the first magnetorheological elastic body; 5-2 represents the first spring assembly; 5-3 represents the first magnet; 5-4 represents the first damping assembly; 5-5 represents the second spring assembly; 5-6 represents the second magnet; 5-7 represents the third spring assembly; and 5-8 represents the second damping assembly.

[0042] 5-4 is the first damping component; 5-4-1 is the cavity; 5-4-2 is the seventh rod; 5-4-3 is the eighth rod; 5-4-4 is the first rotating damping component; 5-4-5 is the second rotating damping component; 5-4-6 is the first nut; 5-4-7 is the second nut;

[0043] 5-8 is the second damping component; 5-8-1 is the second magnetorheological elastomer; 5-8-2 is the first damper;

[0044] 5-8-1 is the second magnetorheological elastomer; 5-8-1-1 is the first slide groove; 5-8-1-2 is the second slide groove; 5-8-1-3 is the first elastic element; 5-8-1-4 is the first slider; 5-8-1-5 is the second elastic element;

[0045] 6 is the first member;

[0046] 7 is the second member;

[0047] 8 is the third member;

[0048] 9 is the fourth member;

[0049] 10 is the fifth member;

[0050] 11 is the sixth member;

[0051] 12 is the horizontal isolation mechanism; 12-1 is the ninth member; 12-2 is the tenth member; 12-3 is the fourth spring assembly; 12-4 is the second damper. Detailed Implementation

[0052] Exemplary embodiments will now be described in detail. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples consistent with some aspects of the invention as detailed in the appended claims.

[0053] Please see Figures 1-4 This invention provides a composite electromagnetic multi-dimensional vibration isolation device, including a damping pad 1 and two support rods 2. The two support rods 2 are respectively inserted into both sides of the damping pad 1 and fixed together with it. Each support rod 2 is fitted with a first sleeve assembly 3 and a second sleeve assembly 4 that can slide up and down. A vertical vibration isolation mechanism 5 is provided on the top of the damping pad 1 between the two support rods 2.

[0054] It also includes a first rod 6, a second rod 7, a third rod 8, a fourth rod 9, a fifth rod 10, and a sixth rod 11. One end of the first rod 6 is sleeved on the first sleeve assembly 3 on the left side, and the other end is hinged to the vertical vibration isolation mechanism 5 and can move horizontally. One end of the second rod 7 is sleeved on the first sleeve assembly 3 on the right side, and the other end is hinged to the vertical vibration isolation mechanism 5 and can move horizontally. One end of the third rod 8 and the fourth rod 9 are both hinged to one side of the vertical vibration isolation mechanism 5, and the other ends are respectively sleeved on the first sleeve assembly 3 and the second sleeve assembly 4 on the left side. One end of the fifth rod 10 and the sixth rod 11 are both hinged to the opposite side of the vertical vibration isolation mechanism 5, and the other ends are respectively sleeved on the first sleeve assembly 3 and the second sleeve assembly 4 on the right side. The third rod 8 and the fourth rod 9 are symmetrical to the fifth rod 10 and the sixth rod 11 along the vertical vibration isolation mechanism 5.

[0055] Each support rod 2 is equipped with a horizontal vibration isolation mechanism 12 between itself and the corresponding outer wall.

[0056] In this embodiment, the damping pad 1 is a butyl rubber damping pad (PVC damping pad), which serves to provide support and dissipate energy.

[0057] like Figure 2 As shown, the vertical vibration isolation mechanism 5 includes, from bottom to top, a first magnetorheological elastomer 5-1, a first spring assembly 5-2, a first magnet 5-3, a first damping assembly 5-4, a second spring assembly 5-5, a second magnet 5-6, a third spring assembly 5-7, and a second damping assembly 5-8, which are arranged sequentially on the top of the damping pad 1; specifically, the first spring assembly 5-2, the second spring assembly 5-5, and the third spring assembly 5-7 are all multiple assembled compression springs.

[0058] The second damping component 5-8 includes a second magnetorheological elastomer 5-8-1. Both ends of the second magnetorheological elastomer 5-8-1 are connected to the upper part of the corresponding support rod 2 through a first damper 5-8-2. One end of the first rod 6 and the second rod 7 are both hinged to the second magnetorheological elastomer 5-8-1.

[0059] like Figure 3 As shown, the bottom surface of the second magnetorheological elastomer 5-8-1 is provided with a first groove 5-8-1-1 and a second groove 5-8-1-2 spaced apart. The first groove 5-8-1-1 is provided with a first elastic element 5-8-1-3 and a first slider 5-8-1-4 that can move along the length direction of the first groove 5-8-1-1. The first rod 6 is hinged to the first slider 5-8-1-4. The second groove 5-8-1-2 is provided with a second elastic element 5-8-1-5 and a second slider that can move along the length direction of the second groove 5-8-1-2. The second rod 7 is hinged to the second slider.

[0060] Specifically, both the first elastic element 5-8-1-3 and the second elastic element 5-8-1-5 are rubber springs or torsion springs.

[0061] In this embodiment, the first shock absorption component 5-4 includes a cavity 5-4-1, one end of the third rod 8 and the fourth rod 9 are hinged together on one side of the cavity 5-4-1, and one end of the fifth rod 10 and the sixth rod 11 are hinged together on the opposite side of the cavity 5-4-1.

[0062] The second spring assembly 5-5 is disposed at the top of the cavity 5-4-1, and the first magnet 5-3 is disposed at the bottom of the cavity 5-4-1. The cavity 5-4-1 is filled with a viscous liquid, which may be silicone oil.

[0063] Furthermore, the first damping assembly 5-4 also includes a seventh rod 5-4-2, an eighth rod 5-4-3, and a first rotating damping member 5-4-4 and a second rotating damping member 5-4-5 spaced apart within the cavity 5-4-1;

[0064] One end of the seventh rod 5-4-2 is hinged together with the first rod 6 to the first slider 5-8-1-4, and the other end extends into the cavity 5-4-1 and is hinged to the first nut 5-4-6; one end of the eighth rod 5-4-3 is hinged together with the second rod 7 to the second slider, and the other end extends into the cavity 5-4-1 and is hinged to the second nut 5-4-7;

[0065] The first nut 5-4-6 is mounted on the first rotating damper 5-4-4 and can reciprocate along the axial direction of the first rotating damper 5-4-4, thereby driving the first rotating damper 5-4-4 to rotate. The second nut 5-4-7 is mounted on the second rotating damper 5-4-5 and can reciprocate along the axial direction of the second rotating damper 5-4-5, thereby driving the second rotating damper 5-4-5 to rotate.

[0066] It should be noted that the structure and motion principle of the first rotating damper 5-4-4, the first nut 5-4-5, the second rotating damper 5-4-5, and the second nut 5-4-7 are the same as those of the lead screw, and can be replaced by ball screws, trapezoidal screws, or other lead screws that can slide up and down.

[0067] Furthermore, the first rotating damper 5-4-4 and the second rotating damper 5-4-5 have the same structure;

[0068] The first rotating damping component 5-4-4 includes a first screw. The top end of the first screw is connected to the top end of the cavity 5-4-1 via a bearing, and the bottom end is connected to the bottom end of the cavity 5-4-1 via a bearing. A first nut 5-4-6 is mounted on the first screw. A limiting block is provided on the first screw above the first nut 5-4-6. A ring is connected on the first screw below the first nut 5-4-6, and multiple fan blades are evenly connected to the outer circumference of the ring. Specifically, the outer diameter of the limiting block is less than or equal to the outer diameter of the first nut 5-4-6, and greater than the inner diameter of the first nut 5-4-6.

[0069] Each horizontal isolation mechanism 12 has the same structure;

[0070] The horizontal vibration isolation mechanism 12 between the left support rod 2 and the left outer wall includes a ninth rod 12-1, a tenth rod 12-2, a fourth spring assembly 12-3, and multiple second dampers 12-4. One end of the ninth rod 12-1 and the tenth rod 12-2 are hinged to one end of the fourth spring assembly 12-3. The other end of the ninth rod 12-1 is sleeved on the first sleeve assembly 3 on the left side, and the other end of the tenth rod 12-2 is sleeved on the second sleeve assembly 4 on the left side. The other end of the fourth spring assembly 12-3 is connected to the left outer wall. One end of each second damper 12-4 is connected to the support rod 2, and the other end is connected to the outer wall.

[0071] Specifically, the fourth spring assembly 12-3 is a rubber spring.

[0072] In this embodiment, there are two second dampers 12-4, and the ninth rod 12-1, the tenth rod 12-2, and the fourth spring assembly 12-3 are all located between the two second dampers 12-4.

[0073] like Figure 4 As shown, the first sleeve assembly 3 consists of a first sleeve 3-1 and two symmetrical first horizontal rods 3-2 connected to the outer wall of the first sleeve 3-1; the first sleeve 3-1 is sleeved on the support rod 2 and can slide up and down along the support rod 2; one end of the first rod 6, the third rod 8 and the ninth rod 12-1 on the left are all sleeved on the corresponding first horizontal rod 3-2 of the left first sleeve assembly 3; one end of the second rod 7, the fifth rod 10 and the ninth rod 12-1 on the right are all sleeved on the corresponding first horizontal rod 3-2 of the right first sleeve assembly 3.

[0074] The second sleeve assembly 4 consists of a second sleeve and two symmetrical second horizontal rods connected to the outer wall of the second sleeve; the second sleeve is sleeved on the support rod 2 and can slide up and down along the support rod 2, and is located below the first sleeve 3-1; one end of the fourth rod 9 and the tenth rod 12-2 on the left is sleeved on the corresponding second horizontal rod of the second sleeve assembly 4 on the left; one end of the sixth rod 11 and the tenth rod 12-2 on the right is sleeved on the corresponding second horizontal rod of the second sleeve assembly 4 on the right.

[0075] In this embodiment, the inner surfaces of the first sleeve 3-1 and the second sleeve are coated with a nanocomposite material, which serves to dissipate frictional energy and convert external vibration energy into internal heat energy. Specifically, the nanocomposite material is a nano-ceramic composite coating. The material composition is typically a mixture of nano-ceramic particles (such as alumina, silica, etc.) with a polymer resin base, curing agent, and additives. The nano-ceramic particles possess extremely high hardness and wear resistance, and their unique nano-effects enable the coating to exhibit excellent energy dissipation performance during friction. Working principle: Frictional energy dissipation: When the coating surface is subjected to external friction or vibration, the nano-ceramic particles, as hard points, are embedded in the coating, forming a microscopic uneven contact with the friction surface. This uneven contact generates a large amount of microscopic shearing and compression during friction, causing the molecules and atoms on the coating surface to move relative to their equilibrium positions. This movement induces atomic lattice vibrations (phonons), resulting in energy loss. Energy conversion: As friction continues, the atomic lattice vibrations on the coating surface gradually intensify, forming sound waves that propagate within the coating. These sound waves collide and scatter with other molecules and atoms during propagation, ultimately causing energy to dissipate as heat. Therefore, nano-ceramic composite coatings can convert external mechanical vibration energy into internal heat energy and effectively dissipate it. Wear-resistant protection: In addition to excellent friction energy dissipation performance, nano-ceramic composite coatings also exhibit extremely high wear resistance. The hardness and wear resistance of the nano-ceramic particles make the coating less prone to wear under friction, thus extending its service life. Application advantages: High-efficiency energy dissipation: Nano-ceramic composite coatings can efficiently convert external mechanical vibration energy into internal heat energy and dissipate it, thereby reducing energy waste and equipment vibration noise. Wear-resistant protection: The high wear resistance of the coating allows it to maintain good performance for extended periods in harsh working environments. Environmentally friendly and energy-saving: Due to the reduction of energy waste and equipment wear, nano-ceramic composite coatings also have significant advantages in environmental protection and energy saving.

[0076] The working principle of the vibration isolation device of this invention:

[0077] When the vibration isolation device is subjected to a vertically downward vibration, the second damping component 5-8 moves downward under force, and the first dampers 5-8-2 on both sides perform frictional energy dissipation and vibration reduction. The second damping component 5-8 compresses the third spring component 5-7 and moves closer to the second magnet 5-6. The magnetic field increases, causing the particle arrangement inside the second damping component 5-8 to change, generating damping force to help reduce vibration. At the same time, the downward movement of the second damping component 5-8 pushes the seventh rod 5-4-2 and the eighth rod 5-4-3 downward. The seventh rod 5-4-2 and the eighth rod 5-4-3 then push the first nut 5-4-6 and the second nut 5-4-7 downward, ultimately driving the first rotating damping component 5-4-4 and the second rotating damping component 5-4-5 to rotate. The fan blades on the upper and lower sides rub against the surrounding viscous liquid, hindering the rotation of the fan blades and achieving the effect of energy dissipation and vibration reduction. Additionally, the downward movement of the seventh and eighth rods 5-4-2 and 5-4-3 causes the first and second rods 6 and 7 to move upward, which in turn pulls the rods 3 on both sides upward. During this upward movement, the first and second rods 6 and 7 dissipate energy through friction with the support rod 2, while simultaneously causing the ninth, tenth, and sixth rods 12-1, 12-2, 8, 9, 10, and 11 to move upward. The tenth rods 12-2 on both sides cause the corresponding second sleeve assemblies 4 to move upward, and the second sleeve assemblies 4 on both sides dissipate energy through friction with the support rod 2. After the vibration ends, all spring assemblies perform a self-resetting function of the device.

[0078] When the vibration isolation device is subjected to vertically upward vibration, the damping pad 1 transmits the vibration upward. The first magnetorheological elastomer 5-1 compresses the first spring assembly 5-2 and moves closer to the first magnet 5-3. When the first magnet 5-3 approaches the first magnetorheological elastomer 5-1, the magnetic field increases, causing a change in the particle arrangement within the first magnetorheological elastomer 5-1, generating a damping force to aid in vibration reduction. The first damping assembly 5-4 moves upward, causing the first sleeve assembly 3 and the second sleeve assembly 4 on both sides to move upward. During this process, both the first sleeve assembly 3 and the second sleeve assembly 4 are in contact with the support. The friction of rod 2 dissipates energy. The first rod 6 and the second rod 7 push the first slider 5-8-1-4 and the second slider to move right and left, respectively. The seventh rod 5-4-2 and the eighth rod 5-4-3 move downwards, which in turn pushes the first nut 5-4-6 and the second nut 5-4-7 downwards. Ultimately, this drives the first rotating damper 5-4-4 and the second rotating damper 5-4-5 to rotate. The fan blades on their upper and lower sides rub against the surrounding viscous liquid, hindering the rotation of the fan blades and achieving the effect of energy dissipation and vibration damping. After the vibration ends, all spring assemblies perform a self-resetting function of the device.

[0079] When the vibration isolation device is subjected to vibration from left to right, the right outer wall moves to the left, and all the second dampers 12-4 perform vibration reduction. The ninth rod 12-1 and the tenth rod 12-2 on the left side push the first sleeve assembly 3 and the second sleeve assembly 4 on the corresponding side to dissipate energy upward and downward. The first rod 6 causes the seventh rod 5-4-2 to move downward through the first slide groove 5-8-1-1. The seventh rod 5-4-2 then pushes the first nut 5-4-6 to move downward, and finally drives the first rotating damping member 5-4-4 to rotate. The fan blades on its upper and lower sides rub against the viscous liquid around them, which hinders the rotation of the fan blades and achieves the effect of energy dissipation and vibration reduction. The first sleeve assembly 3 and the second sleeve assembly 4 on the left move upward and downward, causing the third rod 8 and the fourth rod 9 to move, which in turn pulls the cavity 5-4-1 to the left. The movement of cavity 5-4-1 to the left also causes the fifth rod 10 and the sixth rod 11 on the opposite end to move to the left, ultimately pulling the first sleeve assembly 3 and the second sleeve assembly 4 on the right to move upward and downward, rubbing against the support rod 2 to dissipate energy. The upward and downward movement of the first sleeve assembly 3 and the second sleeve assembly 4 on the right causes the outer wall to move to the left, and the second damper 12-4 provides shock absorption. The downward movement of the first sleeve assembly 3 on the right causes one end of the eighth rod 5-4-3 to compress the second elastic element 5-8-1-5 to the right within the second groove 5-8-1-2, while the other end causes the second nut 5-4-7 to move upward, ultimately driving the second rotating shock absorber 5-4-5 to rotate. The fan blades on its upper and lower sides rub against the surrounding viscous liquid, hindering the rotation of the fan blades and achieving the effect of energy dissipation and shock absorption. After the vibration ends, all spring assemblies perform the self-resetting function of the device.

[0080] When the vibration isolation device is subjected to vibration from right to left, the same principle applies as when the vibration is from left to right.

[0081] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention.

[0082] It should be understood that the present invention is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A composite electromagnetic multi-dimensional vibration isolation device, characterized in that, Includes a damping pad (1), with support rods (2) on the left and right sides of the damping pad (1), and each support rod (2) is fitted with a first sleeve assembly (3) and a second sleeve assembly (4) that can slide up and down. A vertical vibration isolation mechanism (5) is provided at the top of the damping pad (1) between the two support rods (2). It also includes a first rod (6), a second rod (7), a third rod (8), a fourth rod (9), a fifth rod (10), and a sixth rod (11). One end of the first rod (6) is sleeved on the first sleeve assembly (3) on the left side, and the other end is slidably hinged to the vertical vibration isolation mechanism (5). One end of the second rod (7) is sleeved on the first sleeve assembly (3) on the right side, and the other end is slidably hinged to the vertical vibration isolation mechanism (5). One end of the third rod (8) and the fourth rod (9) are both hinged to one side of the vertical vibration isolation mechanism (5), and the other ends are respectively sleeved on the first sleeve assembly (3) and the second sleeve assembly (4) on the left side. One end of the fifth rod (10) and the sixth rod (11) are both hinged to the opposite side of the vertical vibration isolation mechanism (5), and the other ends are respectively sleeved on the first sleeve assembly (3) and the second sleeve assembly (4) on the right side. Each of the support rods (2) is provided with a horizontal vibration isolation mechanism (12) between itself and the corresponding outer wall. The vertical vibration isolation mechanism (5) includes, from bottom to top, a first magnetorheological elastomer (5-1), a first spring assembly (5-2), a first magnet (5-3), a first damping assembly (5-4), a second spring assembly (5-5), a second magnet (5-6), a third spring assembly (5-7), and a second damping assembly (5-8). The second damping component (5-8) includes a second magnetorheological elastomer (5-8-1). Both ends of the second magnetorheological elastomer (5-8-1) are connected to the corresponding support rod (2) through a first damper (5-8-2). The first rod (6) and the second rod (7) are both hinged to the second magnetorheological elastomer (5-8-1). The first shock absorber assembly (5-4) includes a cavity (5-4-1), one end of the third rod (8) and the fourth rod (9) are hinged together on one side of the cavity (5-4-1), and one end of the fifth rod (10) and the sixth rod (11) are hinged together on the opposite side of the cavity (5-4-1). The second spring assembly (5-5) is disposed at the top of the cavity (5-4-1), the first magnet (5-3) is disposed at the bottom of the cavity (5-4-1), and the cavity (5-4-1) is filled with a viscous liquid.

2. The composite electromagnetic multi-dimensional vibration isolation device according to claim 1, characterized in that, The bottom surface of the second magnetorheological elastomer (5-8-1) is provided with a first groove (5-8-1-1) and a second groove (5-8-1-2) spaced apart. The first groove (5-8-1-1) is provided with a first elastic element (5-8-1-3) and a first slider (5-8-1-4) that can move along the length direction of the first groove (5-8-1-1). The first rod (6) is hinged to the first slider (5-8-1-4). The second groove (5-8-1-2) is provided with a second elastic element (5-8-1-5) and a second slider that can move along the length direction of the second groove (5-8-1-2). The second rod (7) is hinged to the second slider.

3. The composite electromagnetic multi-dimensional vibration isolation device according to claim 1, characterized in that, The first damping component (5-4) also includes a seventh rod (5-4-2), an eighth rod (5-4-3), and a first rotating damping component (5-4-4) and a second rotating damping component (5-4-5) disposed in the cavity (5-4-1). One end of the seventh rod (5-4-2) is hinged together with the first rod (6) on the first slider (5-8-1-4), and the other end extends into the cavity (5-4-1) and is hinged to the first nut (5-4-6); one end of the eighth rod (5-4-3) is hinged together with the second rod (7) on the second slider, and the other end extends into the cavity (5-4-1) and is hinged to the second nut (5-4-7). The first nut (5-4-6) is mounted on the first rotating damper (5-4-4) and can reciprocate along the axial direction of the first rotating damper (5-4-4), thereby driving the first rotating damper (5-4-4) to rotate. The second nut (5-4-7) is mounted on the second rotating damper (5-4-5) and can reciprocate along the axial direction of the second rotating damper (5-4-5), thereby driving the second rotating damper (5-4-5) to rotate.

4. The composite electromagnetic multi-dimensional vibration isolation device according to claim 3, characterized in that, The first rotating damper (5-4-4) and the second rotating damper (5-4-5) have the same structure; The first rotating shock absorber (5-4-4) includes a first screw, the top end of which is connected to the top end of the cavity (5-4-1) via a bearing, and the bottom end of which is connected to the bottom end of the cavity (5-4-1) via a bearing. The first nut (5-4-6) is mounted on the first screw, and a limit block is provided on the first screw above the first nut (5-4-6). A ring is connected on the first screw below the first nut (5-4-6), and multiple fan blades are connected to the outer circumference of the ring.

5. The composite electromagnetic multi-dimensional vibration isolation device according to claim 1, characterized in that, Each of the horizontal isolation mechanisms (12) has the same structure; The horizontal vibration isolation mechanism (12) between the support rod (2) on the left and the outer wall on the left includes a ninth rod (12-1), a tenth rod (12-2), a fourth spring assembly (12-3), and multiple second dampers (12-4). One end of the ninth rod (12-1) and the tenth rod (12-2) are hinged to one end of the fourth spring assembly (12-3). The other end of the ninth rod (12-1) is sleeved on the first sleeve assembly (3) on the left. The other end of the tenth rod (12-2) is sleeved on the second sleeve assembly (4) on the left. The other end of the fourth spring assembly (12-3) is connected to the outer wall on the left. One end of each second damper (12-4) is connected to the support rod (2), and the other end is connected to the outer wall.

6. The composite electromagnetic multi-dimensional vibration isolation device according to claim 5, characterized in that, The first sleeve assembly (3) consists of a first sleeve (3-1) and a plurality of first horizontal rods (3-2) connected to the outer wall of the first sleeve (3-1); the first sleeve (3-1) is sleeved on the support rod (2) and can slide up and down along the support rod (2); one end of the first rod (6), the third rod (8) and the ninth rod (12-1) on the left are all sleeved on the corresponding first horizontal rod (3-2) of the left first sleeve assembly (3); one end of the second rod (7), the fifth rod (10) and the ninth rod (12-1) on the right are all sleeved on the corresponding first horizontal rod (3-2) of the right first sleeve assembly (3).

7. The composite electromagnetic multi-dimensional vibration isolation device according to claim 6, characterized in that, The second sleeve assembly (4) consists of a second sleeve and a plurality of second horizontal rods connected to the outer wall of the second sleeve; the second sleeve is sleeved on the support rod (2) and can slide up and down along the support rod (2), and is located below the first sleeve (3-1); one end of the fourth rod (9) and the tenth rod (12-2) on the left is sleeved on the corresponding second horizontal rod of the second sleeve assembly (4) on the left; one end of the sixth rod (11) and the tenth rod (12-2) on the right is sleeved on the corresponding second horizontal rod of the second sleeve assembly (4) on the right.

8. The composite electromagnetic multi-dimensional vibration isolation device according to claim 7, characterized in that, The inner surfaces of the first sleeve (3-1) and the second sleeve are coated with nanocomposite materials.

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