Spring viscoelastic self-resetting energy consumption device

Abstract

The utility model provides a spring viscoelastic self-resetting energy consumption device which comprises a frame outer barrel, a connecting guide rod, resetting systems and a viscoelastic energy consumption assembly, the resetting systems and the viscoelastic energy consumption assembly are arranged in the frame outer barrel, the resetting systems are arranged on the two sides of the viscoelastic energy consumption assembly, and the connecting guide rod is arranged on the connecting guide rod. The connecting guide rod penetrates through the frame outer barrel, the viscoelastic energy dissipation assembly is arranged between the frame outer barrel and the connecting guide rod, and the connecting guide rod is connected with the viscoelastic energy dissipation assembly. The viscous-elastic materials generate relative displacement through the displacement of the connecting guide rod, so that the purposes of energy consumption and shock absorption are achieved; the energy dissipation characteristic of the viscoelastic material and the reset capacity of the spring are ingeniously combined, so that an effective anti-seismic protection mechanism is provided, and efficient energy dissipation and excellent reset performance are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building shock absorption, in particular to a spring viscoelastic self-resetting energy dissipation device. Background Art

[0002] Traditional earthquake-resistant design dissipates energy through plastic deformation of structural components. This approach largely ensures human safety, but excessive residual deformation can disrupt the building's functionality and incur high repair costs. If the residual inter-story drift angle exceeds 0.5%, the cost of repairing the building will exceed the cost of rebuilding. Therefore, it is necessary to design devices with a certain degree of self-reset capability to reduce or even eliminate residual deformation after an earthquake.

[0003] Therefore, there is an urgent need for structures that can dissipate the energy input from external loads while maintaining sufficient structural stiffness during rare earthquakes. Viscoelastic dampers have attracted significant attention due to their superior performance, reliability, and low cost. Viscoelastic dampers dissipate energy through friction and slip between molecular chains within the material, as well as the destruction of molecular network bonds. However, after an earthquake, the structure undergoes plastic deformation, resulting in significant residual deformation. This prevents the viscoelastic damper from returning to its original working state, hindering post-earthquake repair. Therefore, it is necessary to design a viscoelastic energy dissipation device with a self-resetting function.

[0004] Compared with other energy-dissipating dampers, self-resetting dampers have weaker energy dissipation capabilities. Therefore, a large number of self-resetting dampers must be arranged in a structure to achieve the desired seismic resistance. Therefore, it is necessary to propose a device that not only has self-resetting capabilities but also has good energy dissipation capabilities. Utility Model Content

[0005] The purpose of the utility model is to provide a spring viscoelastic self-resetting energy dissipation device, which cleverly combines the energy dissipation characteristics of viscoelastic materials and the reset ability of springs, aiming to achieve efficient energy dissipation and excellent reset performance, which is crucial for reducing earthquake damage to building structures.

[0006] According to the purpose of the present utility model, the present utility model provides a spring viscoelastic self-resetting energy dissipation device, including a frame outer tube, a connecting guide rod, a reset system and a viscoelastic energy dissipation component, the reset system and the viscoelastic energy dissipation component are both arranged inside the frame outer tube, the reset system is provided on both sides of the viscoelastic energy dissipation component, the connecting guide rod passes through the frame outer tube, the viscoelastic energy dissipation component is arranged between the frame outer tube and the connecting guide rod, and the connecting guide rod is connected to the viscoelastic energy dissipation component.

[0007] Furthermore, the reset system includes a left reset component and a right reset component, and the left reset component and the right reset component are symmetrically arranged on the left and right sides of the viscoelastic energy dissipation component respectively.

[0008] Furthermore, the left reset assembly and the right reset assembly are fixedly connected to the frame outer cylinder and the connecting guide rod respectively.

[0009] Furthermore, the connecting guide rod includes a guide rod body, a guide rod right fixing piece and a guide rod left fixing piece, the left side of the guide rod body is fixed with the guide rod left fixing piece, and the right side of the guide rod body is fixed with the guide rod right fixing piece.

[0010] Furthermore, the guide rod right fixing piece and the guide rod left fixing piece are both circular structures, and the guide rod right fixing piece and the guide rod left fixing piece are fixed on the connecting guide rod.

[0011] Furthermore, the outer cylinder of the frame includes two semicircular cylinders, and connecting plates are fixed on the upper and lower side walls of the semicircular cylinders. The connecting plates are provided with connecting holes, and the two semicircular cylinders are connected by butt bolts.

[0012] Furthermore, a left cover plate is fixed to the left side of the frame outer tube, and a right cover plate is fixed to the right side of the frame outer tube.

[0013] Furthermore, the viscoelastic energy dissipation component includes a left viscoelastic component and a right viscoelastic component, and the left viscoelastic component and the right viscoelastic component are respectively composed of a viscoelastic outer ring, a viscoelastic inner ring and a viscoelastic material, the viscoelastic outer ring is fixedly connected to the frame outer cylinder, the viscoelastic inner ring is fixedly connected to the connecting guide rod, and the viscoelastic material is arranged between the viscoelastic outer ring and the viscoelastic inner ring.

[0014] Furthermore, the outer wall of the viscoelastic outer ring is provided with a plurality of grooves, the inner wall of the semicircular cylinder is provided with a plurality of outer cylinder protrusions, and the positions of the grooves and the outer cylinder protrusions are correspondingly arranged; the viscoelastic inner ring is also provided with a plurality of grooves, and the guide rod body is provided with a plurality of guide rod protrusions, and the positions of the grooves and the guide rod protrusions are correspondingly arranged.

[0015] Furthermore, the left reset assembly and the right reset assembly respectively include a large spring and several small springs, the large spring is fixed on the connecting guide rod and the frame outer tube; the two ends of the small spring are respectively connected to the frame outer tube and the connecting guide rod.

[0016] The technical solution of the utility model achieves the purpose of energy dissipation and shock absorption by causing the viscoelastic material to undergo relative displacement through the displacement of the connecting guide rod; it cleverly combines the energy dissipation characteristics of the viscoelastic material with the reset ability of the spring, thereby providing an effective anti-seismic protection mechanism, realizing efficient energy dissipation and excellent reset performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 The schematic diagram of the AA cross-section structure does not include the viscoelastic energy dissipation components;

[0020] Figure 3 for Figure 1 Schematic diagram of the structure of the viscoelastic energy dissipation component in the AA cross-section structure;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the AA section;

[0022] Figure 5 This is a schematic diagram of the components of the self-resetting system according to an embodiment of the present utility model;

[0023] Figure 6 This is a structural diagram of the right side of the outer cylinder of the frame of the embodiment of the utility model;

[0024] Figure 7 This is a structural diagram of the right side of the connecting guide rod according to an embodiment of the present utility model;

[0025] Figure 8 This is a schematic diagram of connecting guide rods according to an embodiment of the present utility model;

[0026] Figure 9 This is a structural diagram of the outer cylinder of the frame of the embodiment of the utility model;

[0027] In the figure: 1, frame outer cylinder; 11, outer cylinder protrusion; 12, tension bolt; 13, semicircular cylinder; 14-right cover plate;

[0028] 2. Connecting guide rod; 21. Guide rod protrusion; 22. Guide rod body; 23. Guide rod right fixing piece; 24. Guide rod left fixing piece;

[0029] 3. Fix the guide rod;

[0030] 4. viscoelastic energy dissipation component, 41. viscoelastic outer ring, 42. viscoelastic material, 43. viscoelastic inner ring;

[0031] 5. Small spring; 6. Large spring. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0035] Example 1

[0036] like Figures 1-9 As shown, a spring viscoelastic self-resetting energy dissipation device includes a frame outer tube 1, a connecting guide rod 2, a reset system and a viscoelastic energy dissipation component 4. The reset system and the viscoelastic energy dissipation component 4 are installed inside the frame outer tube 1. The reset system includes a left reset component and a right reset component. The viscoelastic energy dissipation component is located in the middle, and the left reset component and the right reset component are symmetrically installed at both ends of the viscoelastic energy dissipation component.

[0037] The connecting guide rod 2 passes through the frame outer tube 1 , the viscoelastic energy dissipation component 4 is arranged between the frame outer tube 1 and the connecting guide rod 2 , and the connecting guide rod 2 is connected to the viscoelastic energy dissipation component 4 .

[0038] The left reset assembly and the right reset assembly are respectively connected to the frame outer tube 1 and the fixing assembly of the connecting guide rod 2.

[0039] Specifically, if Figure 6 、 Figure 7 and Figure 8 As shown, the connecting guide rod 2 includes a guide rod body 22, a guide rod right fixing piece 23 and a guide rod left fixing piece 24. A plurality of guide rod protrusions 21 are provided on the guide rod body 22. The left side of the guide rod body 22 is fixed with the guide rod left fixing piece 24, and the right side of the guide rod body 22 is fixed with the guide rod right fixing piece 23.

[0040] The right guide rod fixing piece 23 and the left guide rod fixing piece 24 are both circular structures. A hole of the same size as the cross-section of the connecting guide rod is opened in the middle of the right guide rod fixing piece 23 and the left guide rod fixing piece 24. The right guide rod fixing piece 23 and the left guide rod fixing piece 24 are welded and fixed to the connecting guide rod 2.

[0041] The positions of the right guide rod fixing member 23 and the left guide rod fixing member 24 can be adjusted according to the size of the middle viscoelastic component. Eight guide rod protrusions 21 are set on the connecting guide rod 2 to fix the viscoelastic inner ring of the viscoelastic component. These guide rod protrusions 21 are fixed to the connecting guide rod 2 by welding.

[0042] In this embodiment, the frame outer tube 1 includes a left frame body and a right frame body; the left frame body and the right frame body are connected by tension bolts 12 to form a circle.

[0043] Specifically, if Figure 1 and Figure 9 As shown, the frame outer cylinder 1 is divided into two semicircular cylinders 13. A long connecting plate is fixed on the upper and lower side walls of the semicircular cylinder 13. The connecting plate is provided with connecting holes. After the two semicircular cylinders 13 are assembled together, the two connecting plates are butt-jointed together and connected by butt bolts 12 to form the frame outer cylinder 1.

[0044] Furthermore, a left cover plate is fixed to the left side of the frame outer tube 1 , and a right cover plate 14 is fixed to the right side of the frame outer tube 1 .

[0045] Nine outer cylinder protrusions 11 are welded to the inner wall of the semicircular cylinder 13 of the frame outer cylinder 1. The outer cylinder protrusions 11 are arranged in a "2-1-2-1-2-1" manner on the inner wall of the semicircular cylinder 13. The outer cylinder protrusions 11 are used to fix the viscoelastic outer ring 41 of the viscoelastic component 4.

[0046] The viscoelastic energy dissipation assembly 4 is divided into two identical left and right parts, specifically a left viscoelastic assembly and a right viscoelastic assembly. The left and right viscoelastic assemblies are respectively composed of a viscoelastic outer ring 41, a viscoelastic inner ring 43, and a viscoelastic material 42. The viscoelastic outer ring 41 is fixedly connected to the frame outer cylinder 1, the viscoelastic inner ring 43 is fixedly connected to the connecting guide rod 2, and the viscoelastic material 42 is disposed between the viscoelastic outer ring 41 and the viscoelastic inner ring 43.

[0047] Specifically, the outer wall of the viscoelastic outer ring 41 of the viscoelastic assembly is provided with nine grooves, and the outer cylinder protrusions 11 are provided on the frame outer cylinder 1. The nine grooves correspond to the positions of the nine outer cylinder protrusions 11, and the viscoelastic outer ring 41 is fixedly connected to the frame outer cylinder 1 through the cooperation of the grooves and the outer cylinder protrusions 11. The viscoelastic inner ring 43 of the viscoelastic assembly is also provided with eight grooves, and the connection assembly is provided with eight guide rod protrusions 21. The eight grooves correspond to the positions of the eight guide rod protrusions 21, and the viscoelastic inner ring 43 is fixedly connected to the connection guide rod 2 through the cooperation of the grooves and the guide rod protrusions 21.

[0048] The left reset assembly and the right reset assembly are respectively composed of a large spring 6 and eight small springs 5; wherein:

[0049] The large spring 6 of the left reset assembly is fixed on the connecting guide rod 2 and the fixed guide rod 3. The fixed guide rod 3 is fixedly connected to the left cover plate of the frame outer tube 1. The large spring 6 is limited in position by the fixed guide rod 3 and the connecting guide rod 2.

[0050] The ends of the small springs 5 ​​are provided with external threads. A through-hole is provided on the left cover plate of the frame outer tube 1, and a through-hole is also provided on the left guide rod fixing member 24 connecting the guide rod 2. The left ends of the eight small springs 5 ​​extend through the through-holes in the left cover plate of the frame outer tube 1 and are secured by nuts. The right ends of the eight small springs 5 ​​extend through the through-holes in the left guide rod fixing member 24 connecting the guide rod 2 and are secured by nuts. The nuts at both ends of the small springs 5 ​​can be pre-tightened, providing prestress, giving the small springs a strong initial self-reset capability.

[0051] The large spring 6 of the right reset assembly is installed between the right guide rod fixing piece 23 of the connecting guide rod 2 and the right cover plate of the frame outer tube 1. The left end of the large spring 6 is fixed on the right guide rod fixing piece 23 of the connecting guide rod 2, and the right end of the large spring 6 is fixed on the right cover plate of the frame outer tube 1, and the large spring 6 is restricted from moving up and down by the connecting guide rod 2.

[0052] The ends of the small springs 5 ​​are also provided with external threads. A through-hole is provided on the right cover plate of the frame outer tube 1, and a through-hole is also provided on the right guide rod fixing member 23 of the connecting guide rod 2. The left ends of the eight small springs 5 ​​are respectively inserted through the through-holes of the right guide rod fixing member 23 of the connecting guide rod 2 and secured by nuts. The right ends of the eight small springs 5 ​​are respectively inserted through the through-holes in the right cover plate of the frame outer tube 1 and secured by nuts. The nuts at both ends of the small springs 5 ​​can be pre-tightened, providing prestress, giving the small springs a strong initial self-reset ability.

[0053] When prestress is applied to the left reset component and the right reset component, it is best to apply the same prestress on both sides, which can ensure that the viscoelastic material is in the initial position at the beginning.

[0054] The working principle of the present invention is as follows:

[0055] During an earthquake, the connecting guide rod 2 moves, causing the left and right reset assemblies and the viscoelastic component to move simultaneously, dissipating energy. The viscoelastic material has a low stiffness, and when a certain prestress is applied to the reset assembly, the viscoelastic material reaches a slippery state, allowing the reset system and the viscoelastic component to work together during an earthquake.

[0056] The outer tube 1 of the frame of the present invention fixes the viscoelastic outer ring 41 of the viscoelastic component, and the connecting guide rod 2 passes through and connects to the viscoelastic inner ring 43 of the viscoelastic component. Through the movement of the connecting guide rod 2, the viscoelastic material 42 consumes energy to produce a shock-absorbing effect, and further cooperates with the reset system to achieve reset.

[0057] The utility model achieves the purpose of energy dissipation and shock absorption by causing the viscoelastic material to undergo relative displacement through the displacement of the connecting guide rod 2; and self-resetting components are arranged at both ends of the inner side of the frame outer tube 1, so that the self-resetting energy dissipation device has self-resetting capabilities in both compression and tension directions.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spring viscoelastic self-resetting energy dissipation device, characterized in that: It includes a frame outer tube, a connecting guide rod, a reset system and a viscoelastic energy dissipation component, the reset system and the viscoelastic energy dissipation component are both arranged inside the frame outer tube, the reset system is provided on both sides of the viscoelastic energy dissipation component, the connecting guide rod passes through the frame outer tube, the viscoelastic energy dissipation component is arranged between the frame outer tube and the connecting guide rod, and the connecting guide rod is connected to the viscoelastic energy dissipation component; the reset system includes a left reset component and a right reset component, the left reset component and the right reset component are symmetrically arranged on the left and right sides of the viscoelastic energy dissipation component respectively; the left reset component and the right reset component are respectively connected to the The frame outer cylinder and the connecting guide rod are fixedly connected; the connecting guide rod includes a guide rod body, a guide rod right fixing piece and a guide rod left fixing piece, the left side of the guide rod body is fixed with the guide rod left fixing piece, and the right side of the guide rod body is fixed with the guide rod right fixing piece; the guide rod right fixing piece and the guide rod left fixing piece are both circular structures, and the guide rod right fixing piece and the guide rod left fixing piece are fixed on the connecting guide rod; the frame outer cylinder includes two semicircular cylinders, and connecting plates are fixed on the upper and lower side walls of the semicircular cylinders, and connecting holes are opened on the connecting plates, and the two semicircular cylinders are connected by butt bolts.

2. The spring viscoelastic self-resetting energy dissipation device according to claim 1, characterized in that: A left cover plate is fixed to the left side of the frame outer cylinder, and a right cover plate is fixed to the right side of the frame outer cylinder.

3. The spring viscoelastic self-resetting energy dissipation device according to claim 1, characterized in that: The viscoelastic energy dissipation component includes a left viscoelastic component and a right viscoelastic component, and the left viscoelastic component and the right viscoelastic component respectively include a viscoelastic outer ring, a viscoelastic inner ring and a viscoelastic material. The viscoelastic outer ring is fixedly connected to the frame outer cylinder, the viscoelastic inner ring is fixedly connected to the connecting guide rod, and the viscoelastic material is arranged between the viscoelastic outer ring and the viscoelastic inner ring.

4. The spring viscoelastic self-resetting energy dissipation device according to claim 3, characterized in that: The outer wall of the viscoelastic outer ring is provided with a plurality of grooves, the inner wall of the semicircular cylinder is provided with a plurality of outer cylinder protrusions, and the positions of the grooves and the outer cylinder protrusions are arranged correspondingly; the viscoelastic inner ring is also provided with a plurality of grooves, and the guide rod body is provided with a plurality of guide rod protrusions, and the positions of the grooves and the guide rod protrusions are arranged correspondingly.

5. The spring viscoelastic self-resetting energy dissipation device according to claim 1, characterized in that: The left reset assembly and the right reset assembly respectively include a large spring and several small springs. The large spring is fixed on the connecting guide rod and the frame outer cylinder; the two ends of the small spring are respectively connected to the frame outer cylinder and the connecting guide rod.

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