Spring friction self-resetting energy consumption device

Abstract

The utility model provides a spring friction self-resetting energy consumption device which comprises a connecting guide rod, an outer frame, a resetting assembly and a friction energy consumption assembly, the resetting assembly and the friction energy consumption assembly are arranged in the outer frame, the resetting assembly is divided into a left resetting assembly and a right resetting assembly, and the left resetting assembly is connected with the right resetting assembly. The friction energy dissipation assembly is arranged between the left reset assembly and the right reset assembly, the connecting guide rod penetrates through the right reset assembly, and the friction energy dissipation assembly is connected with the left reset assembly. Friction is generated between the friction plate and the friction plate through displacement of the connecting guide rod, the friction is used as power consumption to dissipate earthquake energy, and therefore the purposes of energy dissipation and shock absorption are achieved. The two reset assemblies can work at the same time when being pressed and pulled, and the self-reset capacity of the spring friction self-reset energy dissipation device is improved; and meanwhile, the device is low in cost and wide in application, can be used between floor frames and beam-column joints, and is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of building shock absorption, in particular to a spring friction 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 external load input energy during rare earthquakes while ensuring sufficient structural rigidity and sufficient self-reset capability after a rare earthquake. This requires a composite self-reset friction energy dissipation device. However, because existing friction dampers dissipate energy through relative slip between their composite components and friction plates under preload, the plastic deformation of the structure after an earthquake causes significant residual deformation, making it impossible for the friction damper to return to its original working state, hindering post-earthquake repair. Therefore, it is necessary to design a friction energy dissipation device with a self-reset function that can ensure sufficient energy dissipation capacity while reducing or even eliminating residual structural deformation. Utility Model Content

[0004] The purpose of the utility model is to provide a spring friction self-resetting energy dissipation device, which can dissipate energy through friction when an earthquake occurs, thereby reducing the vibration of the structure and realizing the self-reset of the structure to its original state through a reset component.

[0005] According to the purpose of the present utility model, the present utility model provides a spring friction self-resetting energy dissipation device, including a connecting guide rod, an outer frame, a reset assembly and a friction energy dissipation assembly, the reset assembly and the friction energy dissipation assembly are arranged inside the outer frame, the reset assembly is divided into a left reset assembly and a right reset assembly, the friction energy dissipation assembly is arranged between the left reset assembly and the right reset assembly, the connecting guide rod passes through the right reset assembly, and the friction energy dissipation assembly is connected to the left reset assembly.

[0006] Furthermore, the left reset assembly and the right reset assembly are symmetrically distributed at both ends of the outer frame.

[0007] Furthermore, the outer frame includes an outer plate, a left end cover and a right end cover, the two outer plates are symmetrically arranged, and the left end and the right end of the two outer plates are respectively fixed to the left end cover and the right end cover.

[0008] Furthermore, the friction energy dissipation component includes two friction plates arranged in a front-to-rear manner, and a left fixed plate and a right fixed plate are fixed to the left and right ends of the two friction plates respectively, and the right fixed plate is fixed to the connecting guide rod.

[0009] Furthermore, corresponding grooves are provided on the outer plate and the friction plate, a plurality of friction plates are provided between the outer plate and the friction plate, and the outer plate, the friction plates and the friction plate are connected by bolts.

[0010] Furthermore, the bolt is an anti-loosening disc spring.

[0011] Furthermore, the connecting guide rod includes a connecting round rod, a connecting plate and a fixed cylinder which are fixedly connected in sequence, and the left fixed plate and the right fixed plate are respectively fixed on the connecting plate and the connecting round rod.

[0012] Furthermore, the left reset assembly and the right reset assembly respectively include a large spring and a plurality of small springs.

[0013] Furthermore, a fixed guide rod is fixed to the outer side of the left end cover, the large spring of the left reset assembly is arranged between the fixed guide rod and the fixed cylinder, and the small spring is connected to the left end cover and the left fixed plate through a nut.

[0014] Furthermore, the large spring of the right reset assembly is arranged on the connecting round rod, the large spring is located between the right end cover and the right fixed plate, and the small spring is connected to the right end cover and the right fixed plate through a nut.

[0015] The technical solution of the utility model causes friction between the friction plate and the friction plate through the displacement of the connecting guide rod, and dissipates the seismic energy by friction, thereby achieving the purpose of energy dissipation and shock absorption; and the two reset components can work simultaneously when under compression and tension, thereby increasing the self-resetting ability of the spring friction self-resetting energy dissipation device; at the same time, the device has low cost and wide application, and can be used between floor frames and between beam-column nodes, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 This is a front structural diagram of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0019] Figure 3 This is a front view structural diagram of the connecting guide rod according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the top view of the connecting guide rod according to an embodiment of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the friction energy dissipation component of an embodiment of the utility model;

[0022] Figure 6 This is a schematic structural diagram of the outer panel of an embodiment of the present utility model;

[0023] Figure 7 This is a schematic structural diagram of the friction plate of an embodiment of the utility model;

[0024] Figure 8 This is a schematic diagram of a large spring and a small spring according to an embodiment of the present utility model;

[0025] Figure 9 This is a schematic diagram of a bolt according to an embodiment of the present utility model;

[0026] Figure 10 For the embodiment of the utility model Figure 1 Schematic diagram of the structure of the left end cover at A in the middle;

[0027] Figure 11 For the embodiment of the utility model Figure 1 Schematic diagram of the structure of the left fixed plate at B in the middle;

[0028] Figure 12 For the embodiment of the utility model Figure 1 Schematic diagram of the structure of the right fixed plate at C in the middle;

[0029] Figure 13 For the embodiment of the utility model Figure 1 Schematic diagram of the structure of the right end cover at D in the middle;

[0030] In the figure: 1, connecting guide rod, 11, connecting round rod, 12, connecting plate, 13, fixed cylinder, 14, left fixed plate, 15, right fixed plate;

[0031] 2. Outer frame; 21. Outer plate; 211. Groove; 22. Left end cover; 23. Right end cover;

[0032] 3. Fixed guide rod; 4. Bolt; 5. Friction plate; 6. Small spring; 7. Large spring; 8. Friction plate. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Example 1

[0037] like Figures 1-13 As shown, a spring friction self-resetting energy dissipation device includes a connecting guide rod 1, an outer frame 2, a fixed guide rod 3, a reset assembly and a friction energy dissipation assembly. The reset assembly and the friction energy dissipation assembly are installed inside the outer frame 2. The reset assembly is divided into a left reset assembly and a right reset assembly. The left reset assembly and the right reset assembly are distributed at both ends of the outer frame 1 and are arranged symmetrically; the friction energy dissipation assembly is installed between the left reset assembly and the right reset assembly, and the connecting guide rod 1 passes through the right reset assembly and is connected to the left reset assembly.

[0038] In this embodiment, friction occurs between the friction plate 5 and the friction plate through the displacement of the connecting guide rod 1, and the seismic energy is dissipated by friction, thereby achieving the purpose of energy dissipation and shock absorption; and the reset assembly enables the left reset assembly and the right reset assembly to work simultaneously under compression and tension to provide higher reset ability.

[0039] like Figure 2 As shown, in this embodiment, the outer frame 2 includes an outer plate 21, a left end cover 22 and a right end cover 23. The two outer plates 21 are symmetrically arranged, and the left end cover 22 and the right end cover 23 are fixed to the left and right ends of the two outer plates 21 respectively.

[0040] The friction energy dissipation component is divided into two parts, front and rear, including two friction plates 8 arranged front and rear. The two friction plates 8 are arranged symmetrically front and rear, and a left fixed plate 14 and a right fixed plate 15 are fixed to the left and right ends of the two friction plates 8 respectively.

[0041] Corresponding grooves 211 are provided on the outer plate 21 and the friction plate 8. A plurality of friction plates 5 are provided between the outer plate 21 and the friction plate 8. In this embodiment, three friction plates 5 are provided between the front and rear outer plates 2 and the friction plate 8 respectively.

[0042] The outer plate 21, friction plate 5, and friction plate 8 are connected by bolts 4, which pass through the outer plate 21, friction plate 5, and friction plate 8 in sequence to secure them. The groove 121 is used to restrict the movement of the friction plate 5. The bolts 4 use anti-loosening disc springs to ensure that there is no loss of preload after application.

[0043] In this embodiment, the friction energy dissipation assembly consists of a friction plate, a friction plate and bolts, and the bolts penetrate the outer plate, the friction plate and the friction plate, wherein the outer plate is fixed, the friction plate is welded to the right fixed plate 15, and the right fixed plate 15 is welded to the connecting guide rod 1.

[0044] Specifically, the connecting guide rod 1 consists of a connecting round rod 11, a connecting plate 12 and a fixed cylinder 13. The connecting round rod 11, the connecting plate 12 and the fixed cylinder 13 are welded and fixed in sequence. The left fixed plate 14 and the right fixed plate 15 are welded to the connecting plate 12 and the connecting round rod 11 respectively.

[0045] The reset assembly is composed of a large spring 7 and a small spring 6, and the large spring 7 and the small spring 6 are installed between the corresponding end cover and the fixed plate.

[0046] Specifically, the left reset assembly and the right reset assembly are respectively composed of a large spring 7 and eight small springs 6; among them, the fixed guide rod 3 is fixed on the left end cover 22, and the large spring 7 of the left reset assembly is installed between the fixed guide rod 3 and the fixed cylinder 13. The large spring 7 has a restoring force only when it is under pressure, and when it is under tension, it ensures that the large spring 7 will not separate from the fixed guide rod 3 and the fixed cylinder 13 within the measuring range.

[0047] The small spring 6 is connected to the left end cover 22 and the left fixed plate 14 through a nut I. Due to the restriction of the nut I, the small spring 6 can provide self-resetting ability when under compression and tension;

[0048] The large spring 7 of the right reset assembly is mounted on the connecting rod 11 of the connecting guide rod 1 and located between the right end cap 23 and the right fixed plate 15. It provides self-reset only when under pressure. The small spring 6 is connected to the right end cap 23 and the right fixed plate 15 via nut I. It provides self-reset under both compression and tension. To facilitate the insertion of the small spring 6, eight small holes are provided in the left and right fixed plates 14, 15.

[0049] The preload force of the reset assembly can be adjusted through nut I. When adjusting the preload force, the preload force applied by each small spring is the same, and the preload force applied by the left reset assembly and the right reset assembly is also the same. This ensures that the spring friction self-reset energy dissipation device is in the same state when under compression and tension.

[0050] The friction energy dissipation component can adjust the friction force of the friction plate 5 through the nut II on the bolt. The greater the pre-tightening force, the greater the friction force of the friction plate 5 and the better the energy dissipation effect. When in use, the initial reset capacity of the reset component should be greater than the friction force of the friction energy dissipation component, so that the device can have good reset ability.

[0051] The working principle of the present invention is as follows:

[0052] Under the action of earthquake, the connecting guide rod 1 moves, causing the self-resetting component to deform, thereby achieving energy dissipation and self-resetting. When the force of the earthquake on the support exceeds the sliding force F of the friction system, m At this time, the friction system and the self-resetting component work together to consume energy.

[0053] In this embodiment, the reset assembly adjusts the preload of the reset assembly by adjusting nut I, and the friction energy dissipation assembly adjusts the preload of the friction energy dissipation assembly by adjusting nut II. According to these two preloads, it can be adjusted which system works first. When the preload of the reset assembly is greater than the sliding force of the friction energy dissipation assembly, the friction energy dissipation assembly will work first, otherwise the reset assembly will work first.

[0054] The design method of the present invention is as follows:

[0055] In order to ensure that the device has sufficient self-resetting ability, it is necessary to ensure that the force F of the self-resetting component in the initial state S Greater than the force F of the friction energy dissipation component m ; Force F of the self-resetting component S = kx, k is the elastic coefficient, x is the elongation, and the force F of the friction energy dissipation component m=μN, μ is the friction coefficient, and N is the normal pressure.

[0056] In this embodiment, the self-reset component has sixteen small springs and two large springs, and the friction energy dissipation component has four friction plates. The elastic coefficient of the small spring is k1, the elastic coefficient of the large spring is k2, the friction coefficient is μ, and the force F of the self-reset component is S =16k1·x, the force F of the friction system m =4μN, then the relationship between the initial preload displacement of the small spring and the normal pressure of the friction system is

[0057] The utility model causes friction between the friction plate and the friction plate through the displacement of the connecting guide rod, and dissipates the seismic energy by friction, thereby achieving the purpose of energy consumption and shock absorption; and the two reset components can work simultaneously when under compression and tension, thereby increasing the self-resetting ability of the spring friction self-resetting energy dissipation device; at the same time, the device has low cost and wide application, and can be used between floor frames and between beam-column nodes, and is suitable for promotion and application.

[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 friction self-resetting energy dissipation device, characterized in that: It includes a connecting guide rod, an outer frame, a reset assembly and a friction energy dissipation assembly. The reset assembly and the friction energy dissipation assembly are arranged inside the outer frame. The reset assembly is divided into a left reset assembly and a right reset assembly. The friction energy dissipation assembly is arranged between the left reset assembly and the right reset assembly. The connecting guide rod passes through the right reset assembly and the friction energy dissipation assembly and is connected to the left reset assembly.

2. The spring friction self-resetting energy dissipation device according to claim 1, characterized in that: The left reset assembly and the right reset assembly are symmetrically distributed at two ends of the outer frame.

3. The spring friction self-resetting energy dissipation device according to claim 1, characterized in that: The outer frame includes an outer plate, a left end cover and a right end cover. The two outer plates are symmetrically arranged, and the left end and the right end of the two outer plates are respectively fixed to the left end cover and the right end cover.

4. The spring friction self-resetting energy dissipation device according to claim 3, characterized in that: The friction energy dissipation component includes two friction plates arranged in a front-to-rear manner, and a left fixed plate and a right fixed plate are fixed to the left and right ends of the two friction plates respectively, and the right fixed plate is fixed to the connecting guide rod.

5. The spring friction self-resetting energy dissipation device according to claim 4, characterized in that: The outer plate and the friction plate are both provided with corresponding grooves, a plurality of friction plates are provided between the outer plate and the friction plate, and the outer plate, the friction plates and the friction plate are connected by bolts.

6. The spring friction self-resetting energy dissipation device according to claim 5, characterized in that: The bolt is an anti-loosening disc spring.

7. The spring friction self-resetting energy dissipation device according to claim 5, characterized in that: The connecting guide rod comprises a connecting round rod, a connecting plate and a fixed cylinder which are fixedly connected in sequence, and the left fixed plate and the right fixed plate are respectively fixed on the connecting plate and the connecting round rod.

8. The spring friction self-resetting energy dissipation device according to claim 7, characterized in that: The left reset assembly and the right reset assembly respectively include a large spring and a plurality of small springs.

9. The spring friction self-resetting energy dissipation device according to claim 8, characterized in that: A fixed guide rod is fixed on the outer side of the left end cover, the large spring of the left reset assembly is arranged between the fixed guide rod and the fixed cylinder, and the small spring is connected to the left end cover and the left fixed plate through a nut.

10. The spring friction self-resetting energy dissipation device according to claim 9, characterized in that: The large spring of the right reset assembly is arranged on the connecting round rod, the large spring is located between the right end cover and the right fixed plate, and the small spring is connected to the right end cover and the right fixed plate through a nut.

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