Self-resetting energy consumption device

Abstract

The invention provides a self-resetting energy consumption device which comprises a connecting guide rod, an outer frame, a fixed guide rod, a resetting system and a friction energy consumption system, the resetting system comprises a first resetting assembly and a second resetting assembly, and the first resetting assembly and the second resetting assembly are installed at the two ends of the outer frame respectively and are symmetrically arranged; the connecting guide rod penetrates through the second reset assembly and the friction energy dissipation system to be connected with the first reset assembly. The fixed guide rod is mounted at one end, away from the connecting guide rod, of the first reset assembly; the friction energy dissipation system is installed between the first reset assembly and the second reset assembly and located in the outer frame. 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; when the reset system is pressed and pulled, the first reset assembly and the second reset assembly can work to provide reset capacity. Certain energy dissipation capacity can be provided, and meanwhile residual displacement after an earthquake can be reduced.

Description

Technical Field

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

[0002] Traditional earthquake-resistant design dissipates energy through plastic deformation of structural components. This method ensures the safety of personnel to a large extent, but the excessive residual deformation of the structure after the earthquake interrupts the use of the building itself and generates high repair costs. Since the residual inter-story displacement angle of the structure after the earthquake exceeds 0.5%, the repair cost of the building will be higher than the reconstruction cost. Therefore, it is necessary to make the energy dissipation device have a certain self-reset ability to reduce or even eliminate the residual deformation of the structure after the earthquake.

[0003] Since existing friction dampers consume energy through relative sliding of their own composite components and friction plates under preload, they are often unable to return to their original working state after an earthquake, and the structure will produce large residual deformation, which is not conducive to post-earthquake repair. Summary of the invention

[0004] The purpose of the present invention is to provide a self-resetting energy dissipation device, which utilizes the mutual friction between the friction plate and the friction plate to construct a damping device to produce a shock-absorbing effect, and further cooperates with a reset system to achieve reset, which can reduce or even eliminate the residual deformation of the structure after the earthquake.

[0005] The technical solution of the present invention is: a self-resetting energy dissipation device, comprising a connecting guide rod, an outer frame, a fixed guide rod, a reset system and a friction energy dissipation system, the reset system comprising a first reset component and a second reset component, the first reset component and the second reset component are respectively installed at two ends of the outer frame and are arranged symmetrically; the connecting guide rod passes through the second reset component and the friction energy dissipation system and is connected to the first reset component; the fixed guide rod is installed at one end of the first reset component away from the connecting guide rod; the friction energy dissipation system is installed between the first reset component and the second reset component, and is located inside the outer frame.

[0006] Furthermore, the outer frame includes an outer plate, a first end cover and a second end cover, and the first end cover and the second end cover are respectively installed at two ends of the outer plate and are symmetrically arranged.

[0007] Furthermore, the connecting guide rod includes a round rod, a connecting plate and a fixed cylinder which are welded in sequence, a first fixing plate and a second fixing plate are welded at both ends of the connecting plate, and eight small holes are respectively opened on the first fixing plate and the second fixing plate for connecting with the reset system.

[0008] Furthermore, the friction energy dissipation system includes a friction plate, a friction sheet and a second fastening assembly; there are two friction plates, which are symmetrically arranged inside the outer plate, and a slide groove is opened on the friction plate; there are six friction plates, which are symmetrically arranged between the inner wall of the outer plate and the friction plate; the second fastening assembly passes through the outer plate, the friction sheet and the friction plate in sequence.

[0009] Furthermore, the second fastening assembly includes a screw rod and a nut II, the screw rod adopts an anti-loosening disc spring, and the screw rod cooperates with the nut II.

[0010] Furthermore, a groove is formed on the inner wall of the outer plate to restrict the movement of the friction plate.

[0011] Furthermore, the first reset assembly is connected to the first end cover and the first fixing plate via a first fastening assembly, and the second reset assembly is connected to the second end cover and the second fixing plate via a first fastening assembly.

[0012] Further, the first fastening assembly includes a nut I, and the nut I cooperates with the first resetting assembly.

[0013] Furthermore, the first reset assembly includes 1 first spring and 8 second springs; the first spring is installed between the fixed guide rod and the fixed cylinder, and the second spring is connected to the first end cover and the first fixed plate through the nut I.

[0014] Furthermore, the second reset assembly includes 1 first spring and 8 second springs; the first spring is installed on the connecting round rod between the second end cover and the second fixing plate, and the second spring is connected to the second end cover and the second fixing plate through the nut I.

[0015] Compared with the prior art, the beneficial effects of the present invention are: friction is generated between the friction plate and the friction plate through the displacement of the connecting guide rod, and the seismic energy is dissipated by friction, thereby achieving the purpose of energy dissipation and shock reduction; and the two reset systems can work simultaneously under compression and tension, thereby increasing the self-reset capacity of the spring-friction self-reset energy dissipation device; at the same time, the device has low cost and a wide range of uses, 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 present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the main structure of the self-resetting energy dissipation device according to an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the top view of the structure of the self-resetting energy dissipation device according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the main structure of the connecting guide rod according to an embodiment of the present invention;

[0020] Figure 4 It is a schematic diagram of the top view of the connecting guide rod according to an embodiment of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the friction energy dissipation system and the outer plate of an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the inner plate of an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of a large spring and a small spring according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of a bolt according to an embodiment of the present invention;

[0025] Fig. 9 for Figure 1 Schematic diagram of the left and right views of the cross section at A in the middle;

[0026] Fig.10 for Figure 1 Schematic diagram of the left and right views of the cross section at B in the middle;

[0027] Fig.11 for Figure 1 Schematic diagram of the left and right views of the cross section at C in the middle;

[0028] Fig.12 for Figure 1 Schematic diagram of the left and right views of the section at point D.

[0029] Description of reference numerals:

[0030] 1: connecting guide rod; 11: connecting round rod; 12: connecting plate; 13: fixing cylinder; 14: first fixing plate; 15: second fixing plate; 2: outer frame; 21: outer plate; 211: groove; 22: first end cover; 23: second end cover; 3: fixing guide rod; 4: screw rod; 5: friction plate; 6: second spring; 7: first spring; 8: friction plate; 81: slide groove. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] 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" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "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 indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1: Figure 1-12 As shown, the present invention provides a self-resetting energy dissipation device, including a connecting guide rod 1, an outer frame 2, a fixed guide rod 3, a reset system and a friction energy dissipation system, the reset system includes a first reset component and a second reset component, the first reset component and the second reset component are respectively installed at both ends of the outer frame 2, and are symmetrically arranged; the connecting guide rod 1 passes through the second reset component and the friction energy dissipation system to be connected with the first reset component; the fixed guide rod 3 is installed at one end of the first reset component away from the connecting guide rod 1; the friction energy dissipation system is installed between the first reset component and the second reset component, and is located inside the outer frame 2.

[0035] The outer frame 2 includes an outer plate 21, a first end cover 22 and a second end cover 23. The first end cover 22 and the second end cover 23 are respectively mounted on two ends of the outer plate 21 and are symmetrically arranged.

[0036] The connecting guide rod 1 includes a connecting round rod 11, a connecting plate 12 and a fixed cylinder 13 which are welded in sequence. A first fixed plate 14 and a second fixed plate 15 are welded at both ends of the connecting plate 12. Eight small holes are respectively opened on the first fixed plate 14 and the second fixed plate 15 for connecting with the reset system.

[0037] The friction energy dissipation system includes a friction plate 8, a friction sheet 5 and a second fastening assembly; there are two friction plates 8, which are symmetrically arranged in the outer plate 21, and a slide groove 81 is opened on the friction plate 8; there are six friction plates 5, which are symmetrically arranged between the inner wall of the outer plate 21 and the friction plate 8; the second fastening assembly passes through the outer plate 21, the friction sheet 5 and the friction plate 8 in sequence.

[0038] The second fastening assembly includes a screw rod 4 and a nut II. The screw rod 4 uses an anti-loosening disc spring to ensure that no loss occurs after the pre-tightening force is applied. The screw rod 4 cooperates with the nut II.

[0039] The inner wall of the outer plate 21 is provided with a groove 211 for restricting the movement of the friction plate 5. The first reset assembly is connected to the first end cover 22 and the first fixing plate 14 through a first fastening assembly, and the second reset assembly is connected to the second end cover 23 and the second fixing plate 15 through a first fastening assembly. The first fastening assembly includes a nut I, which cooperates with the nut I and the first reset assembly.

[0040] The first reset assembly includes a first spring 7 and eight second springs 6; the first spring 7 is installed between the fixed guide rod 3 and the fixed cylinder 13, and the two ends of the second spring 6 are straight and extend out of the first end cover 22 and the first fixed plate 14 respectively. The extended part is provided with an external thread, which is adapted to connect with the nut I to play a tightening role. The first spring 7 has a restoring force only when it is compressed, and when it is pulled, it is ensured that the first spring 7 will not be separated from the fixed guide rod 3 and the fixed cylinder 13 within the measuring range. The second spring 6 is connected to the first end cover 22 and the first fixed plate 14 through the nut I. Due to the effect of the nut I, the second spring 6 can provide self-reset capability when it is compressed and pulled.

[0041] The second reset assembly includes one first spring 7 and eight second springs 6; the first spring 7 is installed on the connecting rod 11 between the second end cover 23 and the second fixing plate 15, and the second spring 6 is connected to the second end cover 23 and the second fixing plate 15 through the nut I. The first spring 7 of the second reset assembly is installed on the connecting rod 11 between the second end cover 23 and the second fixing plate 15, and the first spring 7 only provides self-reset capability when under pressure, and the second spring 6 is connected to the second end cover 23 and the second fixing plate 15 through the nut I, and the second spring 6 can provide self-reset capability when under pressure and tension.

[0042] The reset system can adjust the initial reset capacity of the reset system through the nut I. When adjusting the preload force, the preload force applied by each second spring 6 is the same, and the preload forces applied by the first and second reset assemblies are also the same, so as to ensure that the self-resetting energy dissipation device is in the same state when under compression and tension.

[0043] The friction energy dissipation system can adjust the friction force of the friction plate 5 through the nut II. 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 system should be greater than the friction force of the friction energy dissipation system, so that the device can have good reset capacity.

[0044] The working principle of the present invention is as follows:

[0045] Under the action of earthquake, the connecting guide rod 1 moves, causing the self-resetting system 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-reset system work together to consume energy.

[0046] The design method of the present invention is as follows:

[0047] In order to ensure that the device has sufficient self-reset capability, it is necessary to ensure that the force F of the self-reset system in the initial state S Greater than the force F of the friction energy dissipation system m ; Force F of the self-resetting system S = kx, k is the elastic coefficient, x is the elongation, and the force F of the friction energy dissipation system m =μN, μ is the friction coefficient, N is the positive pressure. Take the self-reset system with sixteen second springs 6 and two first springs 7, and the friction energy dissipation system with four friction plates 5 as an example, where the elastic coefficient of the second spring is k 1 , the elastic coefficient of the first spring is k 2 , the friction coefficient is μ, the force F of the self-resetting system S =16k 1 x, the force F of the friction systemm =4μN, then the relationship between the initial preload displacement of the second spring and the normal pressure of the friction system is

[0048] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-resetting energy dissipation device, characterized in that: The invention comprises a connecting guide rod (1), an outer frame (2), a fixed guide rod (3), a reset system and a friction energy dissipation system, wherein the reset system comprises a first reset component and a second reset component, wherein the first reset component and the second reset component are respectively mounted at two ends of the outer frame (2) and are symmetrically arranged; the connecting guide rod (1) passes through the second reset component and the friction energy dissipation system and is connected to the first reset component; the fixed guide rod (3) is mounted at one end of the first reset component away from the connecting guide rod (1); and the friction energy dissipation system is mounted between the first reset component and the second reset component and is located inside the outer frame (2).

2. The self-resetting energy dissipation device according to claim 1, characterized in that: The outer frame (2) comprises an outer plate (21), a first end cover (22) and a second end cover (23); the first end cover (22) and the second end cover (23) are respectively mounted at two ends of the outer plate (21) and are symmetrically arranged.

3. The self-resetting energy dissipation device according to claim 2, characterized in that: The connecting guide rod (1) comprises a connecting round rod (11), a connecting plate (12) and a fixed cylinder (13) which are welded in sequence, a first fixed plate (14) and a second fixed plate (15) are welded at both ends of the connecting plate (12), and eight small holes are respectively opened on the first fixed plate (14) and the second fixed plate (15) for connecting with the reset system.

4. The self-resetting energy dissipation device according to claim 3, characterized in that: The friction energy dissipation system comprises a friction plate (8), a friction sheet (5) and a second fastening assembly; the friction plates (8) are in two pieces and are symmetrically arranged inside the outer plate (21), and a slide groove (81) is provided on the friction plates (8); the friction sheets (5) are in six pieces and are symmetrically arranged between the inner wall of the outer plate (21) and the friction plates (8); the second fastening assembly passes through the outer plate (21), the friction sheet (5) and the friction plate (8) in sequence.

5. The self-resetting energy dissipation device according to claim 4, characterized in that: The second fastening assembly comprises a screw rod (4) and a nut II. The screw rod (4) adopts an anti-loosening disc spring, and the screw rod (4) cooperates with the nut II.

6. The self-resetting energy dissipation device according to claim 4, characterized in that: The inner wall of the outer plate (21) is provided with a groove (211) for restricting the movement of the friction plate (5).

7. The self-resetting energy dissipation device according to claim 2, characterized in that: The first reset assembly is connected to the first end cover (22) and the first fixing plate (14) via a first fastening assembly, and the second reset assembly is connected to the second end cover (23) and the second fixing plate (15) via a first fastening assembly.

8. The self-resetting energy dissipation device according to claim 7, characterized in that: The first fastening assembly includes a nut I, and the nut I cooperates with the first resetting assembly.

9. The self-resetting energy dissipation device according to claim 8, characterized in that: The first reset assembly comprises a first spring (7) and eight second springs (6); the first spring (7) is installed between the fixed guide rod (3) and the fixed cylinder (13), and the second spring (6) is connected to the first end cover (22) and the first fixed plate (14) through the nut I.

10. The self-resetting energy dissipation device according to claim 9, characterized in that: The second reset assembly comprises one first spring (7) and eight second springs (6); the first spring (7) is mounted on the connecting round rod (11) between the second end cover (23) and the second fixing plate (15), and the second spring (6) is connected to the second end cover (23) and the second fixing plate (15) via the nut I.

Images