Shear type function self-recovery damping energy absorber

Abstract

The application discloses a shearing type functional self-recovery damping energy absorber, which comprises a constraint sleeve with a cavity and a hole in the top; a quasi-moving seal is arranged at the hole in the top of the constraint sleeve; a linkage plate connected with an external main body structure is arranged above the quasi-moving seal; a closed cavity surrounded by the linkage plate, the constraint sleeve and the quasi-moving seal is filled with damping medium, and a plurality of extrusion pieces are embedded in the damping medium; a driving piece is fixed to the lower surface of the linkage plate, extends downward through the center hole of the quasi-moving seal into the cavity of the constraint sleeve and is fixedly connected with the extrusion pieces embedded in the damping medium; under the action of external load, the driving piece drives the extrusion pieces to interact with the damping medium, thereby generating damping energy absorption effect of dissipating input kinetic energy. The application adopts multi-stage sealing to avoid leakage of the damping medium; the extrusion between the plurality of extrusion pieces and the flowing lead body realizes energy consumption of the damper and self-repair after energy consumption; and the elastic layer is arranged to facilitate deformation of the damping medium.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vibration control of engineering structure, and particularly relates to a shear type functional self-recovery damping energy absorber. BACKGROUND

[0002] Under the action of dynamic load such as wind load and earthquake, engineering structure produces strong vibration, which not only seriously affects the normal use function of the structure, but also threatens the safety of the structure, and causes serious consequences such as structure damage and collapse. One of the effective ways to protect the safety and normal use of engineering structure under the action of dynamic load is to install a certain number of damping energy absorbers in the engineering structure to absorb and dissipate the kinetic energy input into the structure and attenuate the vibration of the structure.

[0003] The shear type damping energy absorber is an important type of damping energy absorber, among which the shear type metal damping energy absorber is most commonly used in engineering. It uses steel to provide energy dissipation mechanism, that is, it uses the yield of steel under external force to dissipate energy, such as shear soft steel damper with different ribbing modes and different opening modes. However, since the mechanical properties of steel change significantly after yielding, and the ductility and fatigue resistance of steel cannot meet the requirements of multiple earthquakes, the above prior art may face the problem of needing to replace the damping energy absorbers on a large scale after experiencing frequent medium and small earthquakes, which not only requires a large amount of economic cost, but also brings great inconvenience to people's work and life, and even may cause a series of social problems such as panic of residents on the safety of the house structure and disputes on the replacement of damping energy absorbers. SUMMARY

[0004] The present application aims at the above-mentioned deficiencies in the prior art, and provides a shear type functional self-recovery damping energy absorber to solve or improve the above-mentioned problems.

[0005] To achieve the above-mentioned purposes, the technical solution adopted by the present application is as follows:

[0006] A shear type functional self-recovery damping energy absorber comprises a constraint sleeve with a cavity and a hole at the top; a quasi-moving seal is arranged at the top hole of the constraint sleeve; a linkage plate connected with an external main structure is arranged above the quasi-moving seal; a closed cavity is formed between the linkage plate, the constraint sleeve and the quasi-moving seal, and the closed cavity is filled with damping medium, and a plurality of extrusion pieces are embedded in the damping medium; a driving piece is fixed to the lower surface of the linkage plate, the driving piece extends downward through the center hole of the quasi-moving seal into the cavity of the constraint sleeve and is fixedly connected with the extrusion pieces embedded in the damping medium.

[0007] Further, the quasi-moving seal is a laminated steel-rubber piece formed by alternately stacking a layer of steel plate and a layer of rubber plate and high-temperature vulcanization, and the laminated steel-rubber piece includes two different setting modes:

[0008] (1) The steel plate of the laminated steel-rubber piece is arranged in the vertical direction, and the innermost layer of the laminated steel-rubber piece is a rubber layer, which is tightly attached to and adhesively fixed with the driving member passing through the hole; and the outermost layer of the laminated steel-rubber piece is a steel plate, which is fixedly connected with the restraint sleeve to form an integral body.

[0009] (2) The steel plate of the laminated steel-rubber piece is arranged in the horizontal direction, and the top surface and the bottom surface of the laminated steel-rubber piece are tightly attached to and fixedly connected with the lower surface of the linkage plate and the upper surface of the restraint sleeve, respectively, to form an integral body.

[0010] Further, the quasi-moving seal is a laminated steel-rubber piece formed by alternately stacking a layer of steel plate and a layer of rubber plate and high-temperature vulcanization, and the laminated steel-rubber piece includes two different setting modes:

[0011] Further, the driving member is a rigid plate or a rigid columnar body; the restraint sleeve is a rigid member in the shape of a hollow cylinder, a cuboid, a square, a sphere or a hemisphere; and the extrusion member is a rigid member in the shape of a column, a plate or a sphere, and the surface of the extrusion member is provided with a plurality of rigid protrusions for increasing the interaction area between the extrusion member and the damping medium.

[0012] Further, the driving member is a rigid plate; and the extrusion member is a columnar body with a hemispherical end, and the length direction of the columnar body is arranged in the horizontal direction, and the radius of the columnar body is 10mm-150mm.

[0013] Further, the driving member is a rigid plate; and the extrusion member is a rigid plate provided with hemispherical rigid protrusions on the two side surfaces, and the plate thickness direction of the extrusion member is arranged in the horizontal direction, and the plate thickness is 10mm-80mm, and the radius of the hemispherical protrusions is 10mm-50mm.

[0014] Further, a thin layer of elastic layer for accelerating the deformation of the damping medium is embedded on the outer surface of the extrusion member and the inner wall of the restraint sleeve.

[0015] Further, the material of the linkage plate, the restraint sleeve, the driving member and the extrusion member is steel, cast iron, alloy or reinforced concrete; and the damping medium is lead, aluminum low-yield-point soft metal or fine sand, iron filings solid rigid particles.

[0016] The shear type functional self-recovery damping energy absorber provided by the application has the following beneficial effects:

[0017] Functional self-recovery: unlike the shearing type metal damper of the prior art, the application is not based on steel as the energy dissipation core material in the energy dissipation mechanism, that is, not by steel yielding and deforming to dissipate energy, but by the driving member driving the rigid extrusion member to extrude the lead body, and then forcing the lead body to yield to dissipate the input energy. Since lead has the characteristic of automatically crystallizing after external load and returning to the physical state before the load, the shock absorption performance parameters of the application change little before and after the external force, realizing the self-recovery of the shock absorption function. In addition, the quasi-dynamic-sealing layer of the application uses a laminated steel plate-rubber member. This component can provide a certain elastic stiffness and elastic restoring force. Under the action of external load, the driving member drives the extrusion member to extrude the lead body to yield and dissipate energy. At the same time, under the driving of the driving member, the rubber layer of the laminated steel plate-rubber member will also produce shear deformation. Since rubber is an elastic body, the laminated steel plate-rubber member can provide elastic restoring force. By controlling the hardness and shear area of the rubber, the size of the elastic restoring force can be controlled, so that the damping energy absorber of the application has good reset ability, thereby further enhancing the self-recovery characteristics of the damping energy absorber of the application.

[0018] Multi-stage sealing: Unlike the traditional technical solution using liquid medium such as silicone oil as damping medium, the damping medium of the application uses solid medium, which significantly reduces the sealing requirement between components compared to the traditional solution using liquid medium as damping medium, avoiding the sharp problem and malady of leakage of liquid damping medium and failure of the damping energy absorber due to factors such as change of ambient temperature, thermal expansion and contraction of materials, etc. during service, which causes gaps at the originally sealed connection of components of the damping energy absorber, and further leads to leakage of the damping medium and failure of the damping energy absorber. In addition, the application further prevents the possibility of leakage of the damping medium under external dynamic load through multi-stage sealing, including the first stage sealing, the guide sealing reinforcement plate above the damping medium, used to realize the first stage sealing of the damping medium; the second stage sealing, the laminated rubber steel plate above the guide sealing reinforcement plate; the third stage sealing, the linkage plate at the opening of the constraint sleeve; using multi-stage sealing, layer by layer, the solid damping medium can be effectively sealed in the constraint sleeve, achieving the effect of multi-stage sealing and strict prevention of leakage.

[0019] Extrusion member: a plurality of protrusions are uniformly distributed on the surface of the extrusion member, and the extrusion members are dispersedly arranged. When energy is dissipated, the contact area between the extrusion member and the lead body can be effectively increased, and the energy dissipation of the damper is realized through the extrusion between the plurality of protrusions and the lead body.

[0020] In the manufacturing of damping energy dissipators, the elastic layer helps to apply a certain prestress to the solid damping medium, thereby eliminating manufacturing gaps and ensuring the compactness of the damping medium. In addition, under external loads, the lead body passively creeps along with the extrusion movement of the extruder, and the lead body and the elastic layer will also be squeezed against each other, causing the elastic layer to produce slight elastic deformation. This has a beneficial effect on the creep and yielding of the damping medium and the reduction of the strength requirements of the driving component. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a shear-type self-restoring damping energy dissipator.

[0022] Figure 2 for Figure 1 Side view.

[0023] Figure 3 for Figure 2 Sectional view at 1-1.

[0024] Figure 4 for Figure 3 Sectional view at 2-2.

[0025] Figure 5 for Figure 3 Sectional view at 3-3.

[0026] Figure 6 for Figure 3 Sectional view at 4-4.

[0027] Figure 7 This is another three-dimensional schematic diagram of a shear-type self-restoring damping energy dissipator.

[0028] Figure 8 for Figure 7 Side view.

[0029] Figure 9 for Figure 2 Sectional view at 1-1.

[0030] Figure 10 for Figure 9 Sectional view at 2-2.

[0031] Figure 11 for Figure 9 Sectional view at 3-3.

[0032] Figure 12 for Figure 9 Sectional view at 4-4.

[0033] Figure 13 This is a structural diagram of a shear-type self-recovering damping energy dissipator that integrates the drive and extrusion components.

[0034] Figure 14 for Figure 13 The front view.

[0035] Figure 15 for Figure 14 Sectional view at 2-2.

[0036] Figure 16 for Figure 14 Sectional view at 3-3.

[0037] Figure 17 This is a structural diagram of a shear-type self-recovering damping energy dissipator, including protrusions and connecting steel plates, with extrusion components.

[0038] Figure 18 for Figure 17 The front view.

[0039] Figure 19 for Figure 18 Sectional view at 1-1.

[0040] Figure 20 for Figure 19 Sectional view at 2-2.

[0041] Figure 21 for Figure 19 Sectional view at 3-3.

[0042] Among them, 1. Linkage plate; 2. Drive component; 3. Quasi-dynamic seal; 4. Guide seal reinforcement plate; 5. Damping medium; 6. Constraint sleeve; 7. Extrusion component; 8. Connecting steel plate; 9. Protrusion. Detailed Implementation

[0043] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0044] According to Embodiment 1 of this application, the shear-type self-restoring damping energy dissipator of this solution includes a constraint sleeve 6, a driving member 2, a quasi-dynamic seal 3, and multiple extrusion members 7.

[0045] Specifically, an opening is made at the top of the constraint sleeve 6, and a quasi-dynamic seal 3 is provided at the top opening of the constraint sleeve 6. The quasi-dynamic seal 3 has a certain elastic stiffness and elastic recovery force.

[0046] The upper portion of the quasi-moving seal 3 is provided with a linkage plate 1 connected with the external main body structure, the linkage plate 1 has sealing performance and can be used to close the opening at the top of the constraint sleeve 6 to avoid lead leakage, and has a connection function and is connected with the external main body structure by bolts or welding.

[0047] The closed cavity formed between the linkage plate 1, the constraint sleeve 6 and the quasi-moving seal 3 is filled with a damping medium 5, and the damping medium 5 is a solid damping medium.

[0048] A plurality of extrusion pieces 7 are embedded in the damping medium 5, and a driving piece 2 is fixed to the lower surface of the linkage plate 1, the driving piece 2 extends downward through the center hole of the quasi-moving seal 3 into the cavity of the constraint sleeve 6 and is fixedly connected with the extrusion pieces 7 embedded in the damping medium 5.

[0049] Under external load, the driving piece 2 drives the extrusion pieces 7 to move, and the extrusion pieces 7 act on the solid damping medium 5 to consume energy.

[0050] Specifically, the linkage plate 1 is fixedly connected with the external main body structure by bolts or welding, that is, the entire damper is fixedly connected with the external main body structure through the linkage plate 1, the bottom of the linkage plate 1 is connected with one end of the driving piece 2, and is used to transmit external load to the driving piece 2.

[0051] The driving piece 2 is used to drive the extrusion pieces 7 to move in the solid damping medium 5 and act on the solid damping medium 5 to realize damping and energy dissipation when a strong wind, an earthquake or other external load occurs.

[0052] According to the second embodiment of the present application, the damping medium 5 in the embodiment is a low-yield-point soft metal such as lead or aluminum or a solid rigid particle such as fine sand or iron filings, and the damping medium 5 is preferably a lead body particle, which is used to be extruded by the extrusion pieces 7 to consume energy.

[0053] When the lead body particle consumes energy, the lead body is extruded by the extrusion pieces 7 to become soft and form a continuous flow body, the movement performance is enhanced, the energy is quickly and efficiently consumed, and the building main body structure is protected; in addition, the extrusion pieces 7 can be quickly restored to the initial position, that is, the self-repairing of the extrusion pieces 7 is realized.

[0054] The solid damping medium 5 used in the embodiment significantly reduces the sealing requirement between parts compared with the traditional scheme using a liquid medium as the damping medium 5, avoids the sharp problem and malady that a gap occurs at the originally sealed part connection of the damping energy absorber due to environmental temperature changes, material thermal expansion and cold contraction and other factors during service, and further causes leakage of the liquid damping medium 5 and failure of the damping energy absorber.

[0055] According to the third embodiment of the present application, the quasi-moving seal 3 of the present embodiment is a laminated steel plate-rubber part formed by alternately stacking a layer of steel plate and a layer of rubber and high-temperature vulcanization.

[0056] Specifically, the laminated steel plate-rubber part of the present solution includes two different setting modes:

[0057] 1. The steel plate of the laminated steel plate-rubber part is arranged vertically, and the innermost layer of the laminated steel plate-rubber part is a rubber layer, which is tightly attached to and adhesively fixed with the driving member 2 passing through the hole therein; and the outermost layer of the laminated steel plate-rubber part is a steel plate, which is fixedly connected with the restraint sleeve 6 to form an integral body.

[0058] 2. The steel plate of the laminated steel plate-rubber part is arranged horizontally, and the top surface and the bottom surface of the laminated steel plate-rubber part are respectively tightly attached to and fixedly connected with the lower surface of the linkage plate 1 and the upper surface of the restraint sleeve 6 to form an integral body.

[0059] The laminated steel plate-rubber part is used to seal the inner cavity of the restraint sleeve 6 to prevent lead leakage. On the other hand, the laminated steel plate-rubber part uses a combination of elastic and rigid materials, which can allow the driving member 2 to have a certain movement displacement, while having the support function of the steel plate.

[0060] The steel plate in the laminated steel plate-rubber part is a rigid structure, which can serve as the support for the rubber layer, the driving member 2, the linkage plate 1, and the restraint sleeve 6. Even if subjected to a certain load impact, the rigid structure can maintain its integrity and not be damaged, thereby increasing the strength of the overall structure and limiting the elastic displacement of the rubber layer.

[0061] The rubber layer has a certain elasticity, which can buffer part of the load impact and assist in energy dissipation, and also allows the driving member 2 to have a certain movement displacement and provide elastic restoring force. The laminated steel plate-rubber part of the present embodiment can provide a certain elastic stiffness and elastic restoring force. Under the action of external load, the driving member 2 is specifically used, and the rubber layer of the laminated steel plate-rubber part will also produce shear deformation. Since rubber is an elastic body, the laminated steel plate-rubber part can provide elastic restoring force. By controlling the hardness and shear area of the rubber, the size of the elastic restoring force can be controlled, so that the damping energy absorber of the present application has good resetting ability, thereby further enhancing the self-recovery characteristics of the damping energy absorber.

[0062] According to the fourth embodiment of the present application, the quasi-moving seal 3 of the present embodiment is provided below with a guide sealing reinforcing plate 4 fixedly connected with the restraint sleeve 6. The guide sealing reinforcing plate 4 is tightly attached to and fixedly connected with the quasi-moving seal 3, and a slit is formed on the guide sealing reinforcing plate 4. The slit width of the slit is consistent with the thickness of the driving member 2, and the slit length of the slit is equal to the sum of the transverse length of the driving member 2 and the maximum horizontal displacement of the driving member 2.

[0063] The slit of the guide sealing reinforcing plate 4 is used for guiding the movement direction of the driving member 2, the slit width is equal to the thickness of the driving member 2, and the slit length is equal to the sum of the transverse length of the driving member 2 and the maximum horizontal displacement of the driving member 2, so that the driving member 2 can be displaced in the movement direction and cooperate with the damping medium 5 to realize damping energy dissipation.

[0064] The opposite two sides of the guide sealing reinforcing plate 4 are fixedly connected with the constraint sleeve 6, so as to realize the sealing connection between the guide sealing plate and the constraint sleeve 6, and realize the first-stage sealing of the lead body.

[0065] The guide sealing reinforcing plate 4 is located above the damping medium 5, and is used for sealing the solid damping medium 5, avoiding leakage of the damping medium 5 under external dynamic load.

[0066] According to the fifth embodiment of the present application, referring to Figures 1-21 The driving member 2 is a rigid plate or a rigid column, and is used for driving the extrusion member 7 to move in the solid damping medium 5 and cooperating with the solid damping medium 5 to realize damping energy dissipation under the action of strong wind, earthquake or other external load.

[0067] The constraint sleeve 6 is a hollow cylinder, a cuboid, a square, a sphere or a hemisphere, which is used for containing the solid damping medium 5 and the extrusion member 7, and is used as a main place for damping energy dissipation, and is used for extrusion energy dissipation between the extrusion member 7 and the damping medium 5.

[0068] The extrusion member 7 can be a rigid member in any shape such as a column, a plate or a sphere, and a certain number of rigid protrusions 9 can be arranged on the surface of the extrusion member 7 to increase the interaction area between the extrusion member 7 and the damping medium 5, so as to improve the efficiency of damping energy dissipation.

[0069] According to the sixth embodiment of the present application, referring to Figures 1-6 The driving member 2 is a rigid plate, and the extrusion member 7 is a column with a hemispherical end, and the length direction of the column is horizontally arranged, and the radius of the column is 10mm-150mm.

[0070] The column part is used for cooperating with the solid damping medium 5 to realize energy dissipation of external load, and in the specific energy dissipation process:

[0071] Under the driving of the driving member 2, the extrusion member 7 extrudes the lead body, forces the lead body to yield and consume the input energy, and after the action of external load, the lead body automatically crystallizes and restores to the physical state before the action of load, that is, the shock absorption performance parameters change little before and after the action of external force, realizes self-recovery of shock absorption function, and the extrusion member 7 finally moves to the initial position state to realize self-repair.

[0072] According to the seventh embodiment of the present application, referring toFigures 7-12 The driving member 2 of the embodiment is a rigid plate, the extrusion member 7 is a rigid plate with hemispherical rigid protrusions 9 on both sides, and the plate thickness direction is arranged horizontally, the plate thickness is 10-80 mm, and the spherical radius of the hemispherical protrusions 9 is 10-50 mm.

[0073] The extrusion member 7 can be provided with multiple extrusion members 7 according to the actual application scene, and the multiple extrusion members 7 are distributed in a scattered and spaced manner, and preferably uniformly and symmetrically distributed on the two sides of the rigid plate.

[0074] During energy consumption, the extrusion member 7 moves under the driving of the driving member 2, the multiple scattered and protruding extrusion members 7 simultaneously act on the lead body, extrude the lead body, and force the lead body to yield and consume the input energy. When the input energy is completely consumed, the lead body automatically crystallizes and restores to the physical state before the load action. That is, the shock absorption performance parameters change little before and after the external force action, the self-recovery of the shock absorption function is realized, and the extrusion member 7 finally moves to the initial position state to realize self-repair.

[0075] The multiple extrusion members 7 of the embodiment are distributed in a scattered manner, which can effectively increase the action area of the extrusion member 7 and the lead body and improve the damping energy consumption effect.

[0076] According to Embodiment Eight of the present application, referring to Figures 13-16 The driving member 2 and the extrusion member 7 of the embodiment are integrally formed and arranged in a cylindrical shape, wherein the upper part of the cylindrical structure is the driving member 2, and the lower part is the extrusion member 7.

[0077] The top of the cylindrical driving member 2 is flush, which is used for fixed connection with the lower surface of the linkage plate 1 to realize the transmission of external load.

[0078] The bottom of the cylindrical extrusion member 7 is spherical, which is used for extruding and consuming energy with the lead body.

[0079] The steel plate of the laminated steel plate-rubber member of the embodiment is arranged horizontally, and the top surface and the bottom surface of the laminated steel plate-rubber member are tightly attached to and fixedly connected with the lower surface of the linkage plate 1 and the upper surface of the constraint sleeve 6 respectively to form an integral body.

[0080] During energy consumption, the driving member 2 and the extrusion member 7 which are integrated and in a cylindrical shape simultaneously and directly act on the lead body, extrude the lead body, and force the lead body to yield and consume the input energy. When the input energy is completely consumed, the lead body automatically crystallizes and restores to the physical state before the load action. That is, the shock absorption performance parameters change little before and after the external force action, the self-recovery of the shock absorption function is realized, and the driving member 2 and the extrusion member 7 finally move to the initial position state to realize self-repair.

[0081] The driving member 2 and the extrusion member 7 are integrally formed in this embodiment, and directly act on the lead body, that is, the load transmission function and the load consumption function are integrated in this embodiment. Compared with the sixth and seventh embodiments, the whole structure of this embodiment is simpler, the cost is lower, the structure is more compact, and the installation and use are more convenient.

[0082] According to the ninth embodiment of the present application, referring to Figures 17-21 The extrusion member 7 of this embodiment includes a connecting steel plate 8 and a plurality of protrusions 9 arranged on the lower surface of the connecting steel plate 8.

[0083] The driving member 2 passes through the middle hole of the laminated steel plate-rubber member, and is fixedly connected with the upper surface of the connecting steel plate 8. The lower surface of the connecting steel plate 8 is fixedly connected with the plurality of protrusions 9.

[0084] The protrusions 9 are in the shape of a ball, a column, a hemisphere or other protruding shapes, and are used to extrude the solid damping medium 5 to achieve energy consumption.

[0085] The plurality of protrusions 9 are dispersedly distributed on the lower surface of the connecting steel plate 8, and have a certain flow space between adjacent protrusions 9, so as to facilitate the extrusion of the lead body and increase the action area of the lead body and the extrusion member 7.

[0086] When a specific external load acts, the steel plate in the extrusion member 7 moves under the driving of the driving member 2 and drives the plurality of dispersed protrusions 9 to extrude the lead body, so as to force the lead body to yield and consume the input energy. When the input energy is completely consumed, the lead body automatically crystallizes and restores to the physical state before the load action, that is, the shock absorption performance parameters change little before and after the external force acts, the self-recovery of the shock absorption function is realized, and finally the extrusion member 7 moves to the initial position state to realize self-repair.

[0087] According to the tenth embodiment of the present application, a thin elastic layer for facilitating the deformation of the damping medium 5 is embedded on the outer surface of the extrusion member 7 and the inner wall of the constraint sleeve 6. The structure of the elastic layer is not marked in the drawings.

[0088] The material of the elastic layer is preferably a rubber material with elasticity, and the thickness of the rubber material can be determined according to the specific application scene or the size of the shear force in the historical record.

[0089] In the specific energy consumption, the lead body is passively moved with the extrusion movement of the extrusion member 7, but in the initial state, the movement rate of the lead body particles is small, and the deformation rate is slow. When the lead body particles contact the elastic layer on the surface of the extrusion member 7 and the inner wall of the constraint sleeve 6, the elastic deformation occurs between the lead body particles and the elastic layer. Under the reaction force, the elastic layer facilitates the deformation of the damping medium 5, accelerates the formation of the flowing continuum of the lead body, and further extrudes the extrusion member 7 to consume energy, so as to realize rapid energy consumption.

[0090] According to the eleventh embodiment of the present application, referring to Figures 1-21 The damping medium 5 of the present embodiment adopts a solid medium, and specifically can adopt a low-yield-point soft metal such as lead or aluminum, or a solid rigid particle such as fine sand or iron filings. The present embodiment preferably adopts a lead body.

[0091] The present embodiment adopts a multi-stage sealing structure to avoid leakage of the lead body, and specifically includes a first-stage sealing, a guide sealing reinforcement plate 4 located above the damping medium 5, for realizing first-stage sealing of the damping medium 5.

[0092] A second-stage sealing, a laminated steel plate-rubber piece located above the guide sealing reinforcement plate 4.

[0093] A third-stage sealing, a linkage plate 1 located at the opening of the constraint sleeve 6, for realizing sealing of the outermost layer.

[0094] The three-stage sealing structure can effectively seal the solid medium in the constraint sleeve 6, and achieve the effect of multi-stage sealing and strict prevention of leakage.

[0095] Different from the conventional technical solution of using a liquid medium such as silicone oil as the damping medium 5, the damping medium 5 of the present embodiment adopts a lead body solid medium, which significantly reduces the sealing requirement between components, avoids the problem that the originally sealed component connection of the damping energy absorber is cracked due to environmental temperature changes, material thermal expansion and contraction, and other factors during service, and further causes leakage of the liquid damping medium 5 and failure of the damping energy absorber. In addition, the multi-stage sealing structure adopted by the present embodiment can further enhance the sealing performance of the damping medium 5, and achieve the effect of multi-stage sealing and strict prevention of leakage.

[0096] Although the specific embodiments of the application are described in detail with reference to the accompanying drawings, it should not be understood as limiting the scope of protection of the patent. Various modifications and variations made by those skilled in the art within the scope described in the claims are still within the scope of protection of the patent.

Claims

1. A shear type functional self-restoring damping energy absorber, characterized in that: The application relates to a constraint sleeve with a cavity in the top and a hole in the top, wherein a quasi-moving seal is arranged at the hole in the top of the constraint sleeve; a linkage plate connected with an external main body structure is arranged above the quasi-moving seal; a closed cavity is formed among the linkage plate, the constraint sleeve and the quasi-moving seal, and the closed cavity is filled with damping medium, and a plurality of extrusion pieces are embedded in the damping medium; a driving piece is fixed to the lower surface of the linkage plate, the driving piece extends downward through the hole in the quasi-moving seal and into the cavity of the constraint sleeve and is fixedly connected with the extrusion pieces embedded in the damping medium.

2. The shear type functional self-healing damping energy absorber according to claim 1, characterized in that: The quasi-moving seal is a laminated steel-rubber piece formed by alternately stacking a layer of steel plate and a layer of rubber plate and high-temperature vulcanization.

3. The shear type functional self-healing damping absorber according to claim 2, characterized in that: The steel plate of the laminated steel-rubber piece is arranged in the vertical direction, the innermost layer of the laminated steel-rubber piece is a rubber layer, the driving piece passes through the hole in the rubber layer and is tightly adhered and fixed, the outermost layer of the laminated steel-rubber piece is a steel plate, and the steel plate in the outermost layer is fixedly connected with the constraint sleeve to form an integrated body.

4. The shear type functional self-healing damping absorber according to claim 2, characterized in that: The steel plate of the laminated steel-rubber piece is arranged in the horizontal direction, and the top surface and the bottom surface of the laminated steel-rubber piece are tightly adhered and fixedly connected with the lower surface of the linkage plate and the upper surface of the constraint sleeve to form an integrated body.

5. The shear type functional self-healing damping absorber according to claim 1, characterized in that: A guide sealing reinforcing plate is arranged below the quasi-moving seal and fixedly connected with the constraint sleeve; the guide sealing reinforcing plate is tightly adhered and fixedly connected with the quasi-moving seal, and a gap is formed in the guide sealing reinforcing plate, the gap width is consistent with the thickness of the driving piece, and the gap length is equal to the sum of the transverse length of the driving piece and the maximum horizontal displacement of the driving piece.

6. The shear type functional self-healing damping absorber according to claim 1, characterized in that: The driving piece is a rigid plate or a rigid columnar body; the constraint sleeve is a rigid member in the shape of a hollow cylinder, a cuboid, a square, a sphere or a hemisphere; the extrusion piece is a rigid member in the shape of a column, a plate or a sphere, and a plurality of rigid protrusions are arranged on the surface of the extrusion piece to increase the interaction area between the extrusion piece and the damping medium.

7. The shear type functional self-healing damping absorber according to claim 6, characterized in that: The driving piece is a rigid plate; the extrusion piece is a columnar body with a hemispherical end, and the length direction of the columnar body is arranged in the horizontal direction, and the radius of the columnar body is 10mm-150mm.

8. The shear type functional self-healing damping absorber according to claim 6, characterized in that: The driving piece is a rigid plate; the extrusion piece is a rigid plate with hemispherical rigid protrusions on the two sides, and the plate thickness direction is arranged in the horizontal direction, the plate thickness is 10mm-80mm, and the radius of the hemispherical protrusion is 10mm-50mm.

9. The shear type functional self-healing damping absorber according to claim 1, characterized in that: A thin elastic layer is embedded on the outer surface of the extrusion piece and the inner wall of the constraint sleeve to accelerate the deformation of the damping medium.

10. The shear type functional self-recovery damping energy absorber according to any one of claims 1-9, characterized in that: The material of the linkage plate, the constraint sleeve, the driving piece and the extrusion piece is steel, cast iron, alloy or reinforced concrete; and the damping medium is lead, aluminum low-yield-point soft metal or fine sand, iron filings solid rigid particles.

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