A disc spring self-resetting friction energy dissipation damper

Abstract

This invention relates to the field of structural vibration reduction technology, and provides a disc spring self-resetting friction energy-dissipating damper. The disc spring self-resetting friction energy-dissipating damper includes: an outer cylinder and an energy-dissipating component; the outer cylinder has a cavity with a fixed stop inside; the energy-dissipating component includes: an inner cylinder with a movable stop inside; a disc spring assembly located on the side of the movable stop away from the fixed stop; and a pulley system including a first fixed pulley, a second fixed pulley, and a rope. The first fixed pulley is located at the fixed stop, the second fixed pulley is located at the end of the inner cylinder away from the fixed stop, and one end of the pulley rope is connected to the end of the inner cylinder away from the fixed stop, and the other end is connected to the movable stop. This invention solves the problem of low energy dissipation efficiency in existing dampers, achieving a damper with a high energy dissipation efficiency structure. Simultaneously, the amplification effect of the pulley system further increases the self-restoring force of the damper, which helps reduce residual deformation of the structure after an earthquake, thereby further enhancing the damping effect of the damper.

Description

Technical Field

[0001] This invention relates to the field of structural vibration reduction technology, and in particular to a disc spring self-resetting friction energy dissipation damper. Background Technology

[0002] Structures may experience strong earthquakes during their service life, resulting in irreversible damage. Although the overall integrity of the structure may remain good, excessive residual deformation leads to increased costs for later reinforcement and maintenance, or even complete loss of usability, necessitating demolition and reconstruction. Therefore, reducing post-earthquake residual deformation is a crucial issue. Self-resetting energy dissipation dampers are widely used due to their excellent self-recovery and stable energy dissipation capabilities.

[0003] Existing self-resetting energy-dissipating dampers have limited energy dissipation and self-resetting capabilities, making it difficult to improve vibration reduction performance. Summary of the Invention

[0004] This invention provides a disc spring self-resetting friction energy-dissipating damper to solve the defects of low energy dissipation efficiency and insufficient self-resetting capability in existing dampers, thereby achieving a damper with higher energy dissipation efficiency and self-resetting capability, and further enhancing the damping effect of the damper.

[0005] This invention provides a disc spring self-resetting friction energy-dissipating damper, comprising: an outer cylinder and an energy-dissipating component;

[0006] The outer cylinder has a cavity inside, and a fixing baffle is provided inside the cavity;

[0007] The energy-consuming component includes:

[0008] An inner cylinder is movably disposed within the cavity, and a first opening is provided at one end of the inner cylinder facing the fixed stop. A movable stop is movably disposed inside the inner cylinder.

[0009] A disc spring assembly is movably disposed inside the inner cylinder along the length direction of the inner cylinder, and the disc spring assembly is located on the side of the movable stop opposite to the fixed stop.

[0010] A pulley system, comprising a first fixed pulley and a second fixed pulley, wherein the first fixed pulley is disposed on the fixed stop, and the second fixed pulley is disposed on the inner cylinder at the end away from the fixed stop. A pulley rope is wound between the first fixed pulley and the second fixed pulley, one end of the pulley rope being connected to the end of the inner cylinder away from the fixed stop, and the other end being connected to the movable stop.

[0011] According to the present invention, a disc spring self-resetting friction energy-dissipating damper is provided, wherein two energy-dissipating components are provided, and the two energy-dissipating components are respectively disposed on both sides of the fixed stop.

[0012] According to the present invention, a disc spring self-resetting friction energy dissipation damper further includes a friction shaft, the middle part of which passes through the through hole of the fixed stop, one end of which is slidably inserted into the disc spring group of one of the energy dissipation components; the other end of which is slidably inserted into the disc spring group of another of the energy dissipation components.

[0013] According to the present invention, a disc spring self-resetting friction energy dissipation damper is provided, wherein a pressing block is fixed on the fixed stop, and the pressing block is used to push the corresponding movable stop to move when the fixed stop moves toward the inner cylinder.

[0014] According to the present invention, a disc spring self-resetting friction energy dissipation damper is provided, wherein the diameter of the first opening is larger than the outer diameter of the extrusion block.

[0015] According to the present invention, a disc spring self-resetting friction energy dissipation damper is provided, wherein one end of the outer cylinder is provided with a second opening and the other end is provided with a first connecting member, and the inner cylinder passes through the second opening to connect with an external device.

[0016] According to the present invention, a disc spring self-resetting friction energy dissipation damper is provided, wherein the inner cylinder is provided with a second connector at one end near the second opening, and the second connector extends to the outside of the cavity.

[0017] According to the present invention, a disc spring self-resetting friction energy dissipation damper is provided, wherein the disc spring assembly includes a plurality of disc springs, and each of the plurality of disc springs is provided with a hole in the middle.

[0018] According to the present invention, a disc spring self-resetting friction energy dissipation damper is provided, wherein a guide portion is provided between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and the guide portion is used to make the inner cylinder move along the length direction of the outer cylinder.

[0019] According to the present invention, a disc spring self-resetting friction energy dissipation damper is provided, wherein the guide portion includes a protrusion and a groove, and the protrusion and the groove are respectively disposed on the inner wall of the outer cylinder and the outer wall of the inner cylinder.

[0020] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0021] This invention features a disc spring assembly inside the inner cylinder, composed of several stacked disc springs. A moving stop compresses the disc spring assembly under the action of a fixed stop. Since the disc spring assembly is made up of stacked disc springs, each disc spring compresses against itself, generating significant friction. This converts the mechanical energy generated by the fixed stop into internal energy, thus dissipating the mechanical energy between the outer and inner cylinders and achieving a shock-absorbing effect. Simultaneously, the disc springs possess strong deformation capacity and highly stable restoring force, greatly improving the stability of the damper.

[0022] The present invention also includes a pulley system. Specifically, a first fixed pulley is fixedly installed on the fixed stop, and a second fixed pulley is fixedly installed on the end of the inner cylinder away from the fixed stop. A pulley rope is wound between the first and second fixed pulleys, with one end of the pulley rope connected to the end of the inner cylinder away from the fixed stop and the other end connected to the movable stop. The pulley system can increase the moving distance of the movable stop, thereby increasing the energy dissipation of the disc spring assembly, thus converting more mechanical energy into heat energy and improving the energy dissipation capacity of the damper. At the same time, the presence of the pulley system increases the post-yield stiffness and self-restoring force of the damper, improving the self-resetting capability of the damper. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a front view of the disc spring self-resetting friction energy dissipation damper provided by the present invention;

[0025] Figure 2 This is a top view of the disc spring self-resetting friction energy dissipation damper provided by the present invention;

[0026] Figure 3 This is an enlarged schematic diagram of the upper half of the disc spring self-resetting friction energy dissipation damper provided by the present invention;

[0027] Figure 4 This is an enlarged schematic diagram of the lower half of the disc spring self-resetting friction energy dissipation damper provided by the present invention;

[0028] Figure 5 yes Figure 4 Sectional view along the AA direction;

[0029] Figure 6 This is a schematic diagram of the disc spring structure of the disc spring self-resetting friction energy dissipation damper provided by the present invention;

[0030] Figure 7This is a comparison diagram of the relative positions of the disc spring self-resetting friction energy dissipation damper in three different states provided by the present invention.

[0031] Figure label:

[0032] 100: Outer cylinder; 200: Inner cylinder; 300: Disc spring assembly; 400: Movable stop; 500: Pulley assembly; 600: Extrusion block; 700: Friction shaft; 800: Second connecting piece;

[0033] 110: Fixed stop; 120: First connecting member;

[0034] 310: Disc spring; 311: Disc spring leaf;

[0035] 510: First fixed pulley; 520: Pulley rope; 530: Second fixed pulley. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some 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 shall fall within the scope of protection of the present invention.

[0037] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "first" and "second" are used to clearly indicate the product components and do not represent any substantial difference. The directions of "upper" and "lower" are based on the directions shown in the accompanying drawings. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances. Furthermore, "multiple" means two or more. In the specification, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Structures may experience severe earthquakes during their service life, resulting in irreversible damage. Although the overall integrity of the structure may remain good, excessive residual deformation leads to increased costs for later reinforcement and maintenance, and may even render the structure unusable, necessitating demolition and reconstruction. Therefore, reducing residual deformation after an earthquake is a crucial issue. Self-resetting energy-dissipating dampers are widely used due to their excellent self-recovery and stable energy dissipation capabilities. They generally consist of a self-resetting section and an energy-dissipating section. The self-resetting capability can be achieved through preloaded disc springs, shape memory alloy SMA wire bundles, prestressed steel strands, etc., while energy can be dissipated through metal friction, metal yielding deformation, viscous fluid flow, etc.

[0040] Although there is a wide variety of self-resetting energy dissipation dampers, many problems still affect their large-scale application:

[0041] (1) When using SMA wire bundles to provide self-restoring force for the damper, due to the special properties of SMA material, there will be problems with weak anchoring; when using prestressed steel strands, there will be problems with prestress loss during the service life, which will affect the self-restoring ability.

[0042] (2) Although a large portion of the energy can be dissipated through the plastic deformation of metal, a large residual deformation will remain; dissipating energy through the flow of viscous fluid has disadvantages such as easy leakage and poor durability.

[0043] (3) Most existing dampers are complex in structure, difficult to process, large in size and heavy in weight, and have high requirements for the environment in which they are used.

[0044] To address the aforementioned problems, embodiments of the present invention provide a disc spring self-resetting friction energy-dissipating damper. (Refer to...) Figure 1 and Figure 2The disc spring self-resetting friction energy-dissipating damper of this embodiment includes an outer cylinder 100 and an energy-dissipating component. In practical applications, the damper is connected between two external devices. Specifically, the outer cylinder 100 is connected to a first external device, and the energy-dissipating component is connected to a second external device. The outer cylinder 100 can move relative to the energy-dissipating component. When the two devices vibrate (i.e., relative movement occurs), the outer cylinder 100 will move relative to the energy-dissipating component, thereby converting the mechanical energy between the two external devices into mechanical energy between the outer cylinder 100 and the energy-dissipating component. That is, the relative movement between the two external devices is converted into the relative movement between the outer cylinder 100 and the energy-dissipating component. When the outer cylinder 100 and the energy-dissipating component move relative to each other, the energy-dissipating component converts the mechanical energy between them into internal energy through friction, that is, converting energy from a motion form to a non-motion form, thereby consuming mechanical motion and thus achieving the function of shock absorption. By consuming the vibration between the two external devices, the residual deformation of the external device structure after an earthquake can be reduced, thereby greatly improving the seismic performance of the external device and extending its service life. It should be noted that there are no restrictions on the external equipment; it can be any equipment that requires vibration damping.

[0045] Since the energy-consuming component is located inside the outer cylinder 100, a cavity can be provided inside the outer cylinder 100. A fixing stop 110 is installed inside the cavity. When the outer cylinder 100 and the energy-consuming component move relative to each other, the outer cylinder 100 can transfer the mechanical energy between them to the energy-consuming component through the fixing stop 110, thereby achieving interaction between the outer cylinder 100 and the energy-consuming component. Specifically, the fixing stop 110 can be a plate-like structure matching the shape of the cavity, or it can be a block-like structure. The specific shape is not limited, as long as it can interact directly or indirectly with the energy-consuming component as the outer cylinder 100 moves. It should be noted that the connection between the fixing stop 110 and the outer cylinder 100 needs to have a certain strength to prevent breakage due to insufficient connection strength when the outer cylinder 100 and the energy-consuming component move relative to each other, thus preventing the energy-consuming component from functioning. In some possible embodiments, the fixing baffle 110 and the outer cylinder 100 can be integrally formed by casting the two together. Its direct function can be to act through direct contact with the energy-consuming component, while its indirect function refers to the fixing baffle 110 acting through contact with the energy-consuming component via other components.

[0046] The following provides an embodiment of the energy-consuming component, with reference to... Figures 1-5 The energy-consuming components include the inner cylinder 200, the disc spring assembly 300, and the pulley assembly 500.

[0047] The inner cylinder 200 is movably disposed within the cavity; specifically, the inner cylinder 200 is slidably installed inside the cavity. The relative movement between the outer cylinder 100 and the energy-dissipating component is mainly manifested in the relative movement between the outer cylinder 100 and the inner cylinder 200. The outer cylinder 100 and the inner cylinder 200 also serve a protective function; therefore, both can be made of materials with a certain degree of rigidity. Specifically, they can be made of durable materials such as steel, stainless steel, and ductile iron castings, which can greatly extend the service life of the damper. The inner cylinder 200 has a first opening at the end facing the fixed stop 110.

[0048] The disc spring assembly 300 is movably disposed inside the inner cylinder 200 along its length. The disc spring assembly 300 is composed of several stacked disc springs 310 made of SMA (shape memory alloy) material, and each disc spring 310 has a hole in its center. The disc spring assembly 300 is located on the side of the movable stop 400 away from the fixed stop 110, thus positioning the disc spring assembly 300 between the movable stop 400 and the inner wall of the inner cylinder 200 away from the fixed stop 110. Under the action of the fixed stop 110, the movable stop 400 compresses the disc spring assembly 300. Since the disc spring assembly 300 is composed of several stacked disc springs 310, each disc spring 310 will compress against each other, generating a large amount of friction. This converts the mechanical energy generated by the fixed stop 110 into internal energy, thereby dissipating the mechanical energy between the outer cylinder 100 and the inner cylinder 200, thus achieving a shock absorption effect.

[0049] In some possible embodiments, refer to Figure 6 The disc spring 310 is composed of two disc spring sets, each with an arc shape. The concave surfaces of the two disc spring sets meet to form the disc spring 310. This allows the disc spring 310 to generate greater elasticity during mutual compression, ensuring it returns to its original state to the greatest extent possible after the force is removed. This also allows the disc spring 310 more room to move during compression, thus prolonging the friction process and converting more mechanical energy into heat energy, thereby improving damping efficiency. The disc spring set is formed by pressing together several disc springs 311, each with an arc shape. These disc springs 311 are sequentially pressed together, i.e., arranged in parallel. In practical use, the energy dissipation capacity of the disc spring set 300 can be adjusted by changing the number of disc springs 311 and the number of disc springs 310, thereby enhancing the applicability of the damper.

[0050] The pulley block 500 includes a first fixed pulley 510 and a second fixed pulley 530. The first fixed pulley 510 is located on the fixed stop 110, and the second fixed pulley 530 is located on the inner cylinder 200 away from the fixed stop 110. Specifically, the first fixed pulley 510 is fixedly installed on the fixed stop 110, and the second fixed pulley 530 is fixedly installed on the inner cylinder 200 away from the fixed stop 110. A pulley rope 520 is wound between the first fixed pulley 510 and the second fixed pulley 530. One end of the pulley rope 520 is connected to the end of the inner cylinder 200 away from the fixed stop 110, and the other end is connected to the movable stop 400. It should be noted that the number of the first fixed pulley 510 and the second fixed pulley 530 is not limited; there can be two or three of each, depending on the actual situation. The function of the pulley block 500 is to increase the moving distance of the movable stop 400, thereby improving the energy consumption capacity of the movable stop 400. In this embodiment, the moving distance of the movable stop 400 determines the degree of compression of the disc spring assembly 300, which in turn determines the amount of energy consumed by the disc spring assembly 300. In other words, the moving distance of the movable stop 400 determines the energy consumption of the disc spring assembly 300. The pulley system 500 increases the moving distance of the movable stop 400, thereby increasing the energy consumption of the disc spring assembly 300. This allows more mechanical energy to be converted into heat energy, improving the energy consumption capacity of the damper. Simultaneously, it increases the post-yield stiffness and self-resetting capability of the damper.

[0051] The following provides an embodiment that limits the number of energy-consuming components, which are arranged in pairs. (Refer to...) Figure 1 or Figure 2 In some possible embodiments, two energy-consuming components are provided, with each component corresponding to one of the two sides of the fixed stop 110. The purpose of having two energy-consuming components is that when the outer cylinder 100 moves relative to the other cylinder in two directions, the pulley block 500 can amplify the movement distance of the movable stop 400.

[0052] Reference Figure 7 Line 'e' refers to the position of the second connector 800 in the three states; in Figure 7The three figures illustrate three different states under the action of the outer cylinder 100, assuming the inner cylinder 200 is fixed. (a) represents the state where the outer cylinder 100 and inner cylinder 200 do not move relative to each other; (b) represents the state where the inner cylinder 200 is fixed and the outer cylinder 100 is pulled to the left; and (c) represents the state where the inner cylinder 200 is fixed and the outer cylinder 100 is pushed to the right. By setting two pulleys, when the outer cylinder 100 is pulled to the left, the pulley group 500 on the right can increase the movement distance of the movable stop 400, and when the outer cylinder 100 is pushed to the right, the pulley group 500 on the left can increase the movement distance of the movable stop 400. This increases the energy dissipation of the disc spring group 300 throughout the vibration process, thereby greatly improving the energy dissipation capacity and self-resetting capability of the damper.

[0053] The following provides an embodiment of the friction shaft 700, with reference to... Figure 3 and Figure 4 The disc spring self-resetting friction energy dissipation damper also includes a friction shaft 700. The friction shaft 700 passes through a through hole in the fixed stop 110 at its center. One end of the friction shaft 700 is slidably inserted into a disc spring assembly 300 of one energy dissipation component; the other end of the friction shaft 700 is slidably inserted into a disc spring assembly 300 of another energy dissipation component. During the compression of the disc spring assembly 300, the disc spring assembly 300 slides on the friction shaft 700, thereby generating friction, increasing the pathway for mechanical energy to be converted into internal energy, and thus increasing the energy dissipation efficiency. To further improve the energy dissipation efficiency of the damper, the friction shaft 700 can be made of a material with a high coefficient of friction and high wear resistance. In some specific embodiments, several protrusions can be provided on the outer periphery of the friction shaft 700 to increase the frictional force between the friction shaft 700 and the disc spring assembly 300, thereby allowing more mechanical energy to be converted into heat energy. In addition to increasing the friction of the disc spring assembly 300, the friction shaft 700 also guides the disc spring assembly 300, so that the disc spring assembly 300 always moves in the length direction of the inner cylinder 200 during the extrusion process, thereby allowing the disc springs 310 to continuously generate friction.

[0054] The following provides an embodiment of the extrusion block 600, with reference to Figure 3A pressing block 600 is fixedly mounted on the fixed stop 110. The pressing block 600 pushes the corresponding movable stop 400 to move when the fixed stop 110 moves towards the inner cylinder 200. Pressing blocks 600 are fixedly mounted on both the left and right sides of the fixed stop 110, and the pressing blocks 600 are correspondingly positioned to the movable stop 400. The diameter of the first opening is larger than the outer diameter of the pressing block 600. This allows the pressing block 600 to pass through the first opening and contact the movable stop 400, thereby pressing the movable stop 400. When the outer cylinder 100 is pulled to the left, the pressing block 600 on the left side of the fixed stop 110 presses the movable stop 400 on the left, thus pressing the disc spring assembly 300 on the left; when the outer cylinder 100 is pushed to the right, the pressing block 600 on the right side of the fixed stop 110 presses the movable stop 400 on the right, thus pressing the disc spring assembly 300 on the right. The extrusion block 600 also has a hole in the middle for the friction shaft 700 to pass through, and the two are fitted with a clearance fit. This allows the extrusion block 600 to move relative to the friction shaft 700 when the fixed stop 110 pushes the extrusion block 600.

[0055] In the above embodiment, the extrusion block 600 has a ring-shaped structure. It should be noted that the extrusion block 600 is not limited to a ring-shaped structure. Specifically, it can include several push rods arranged in a circular array along the length of the friction shaft 700. One end of each push rod is fixedly mounted on the fixed stop 110. To increase the firmness of the contact between the push rod and the movable stop 400, several grooves corresponding to the push rods can be provided on the movable stop 400, allowing the push rod to enter the groove when it contacts the movable stop 400. The grooves limit the movement of the push rod, preventing them from not moving along the length of the inner cylinder 200 during the pushing process.

[0056] The following embodiments further define the outer cylinder 100. In some specific embodiments, the outer cylinder 100 and the inner cylinder 200 are cylindrical structures, thus possessing a certain degree of sealing. Since the inner cylinder 200 undergoes relative movement within the outer cylinder 100, to ensure smooth movement of the inner cylinder 200 within the outer cylinder 100, a second opening is provided at the end of the inner cylinder 200 facing the fixed stop 110. This opening allows the inner cylinder 200 to move to the outside of the outer cylinder 100, thereby ensuring smooth movement between the outer cylinder 100 and the inner cylinder 200. A movable stop 400 is movably provided inside the inner cylinder 200; specifically, the movable stop 400 can be slidably disposed inside the inner cylinder 200. A first connecting member 120 is provided at the end of the inner cylinder 200 facing away from the fixed stop 110, and the inner cylinder 200 passes through the second opening to connect with external equipment. (Refer to...) Figure 2As shown, the first connector 120 includes two strip-shaped connecting plates, and the two strip-shaped connecting plates are provided with connecting holes to facilitate connection with external equipment. The two strip-shaped connecting plates can be integrally formed with the outer cylinder 100 or welded to the outer cylinder 100.

[0057] The following is an embodiment of the second connector 800. The inner cylinder 200 is provided with the second connector 800 near the second opening, and the second connector 800 extends to the outside of the cavity. The structure of the second connector 800 is the same as that of the first connector 120, and the specific structure of the first connector 120 can be referred to.

[0058] The following provides a cooperative embodiment of the outer cylinder 100 and the inner cylinder 200. A guide portion is provided between the inner wall of the outer cylinder 100 and the outer wall of the inner cylinder 200, arranged along the length direction of the outer cylinder 100. The guide portion is used to allow the inner cylinder 200 to move along the length direction of the outer cylinder 100. The guide portion includes protrusions and grooves, which are correspondingly provided on the inner wall of the outer cylinder 100 and the outer wall of the inner cylinder 200. Specifically, the protrusions can be provided on the inner wall of the outer cylinder 100, and correspondingly, the grooves can be provided on the outer wall of the inner cylinder 200; or the protrusions can be provided on the outer wall of the inner cylinder 200, and the corresponding grooves can be provided on the inner wall of the outer cylinder 100.

[0059] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A disc spring self-resetting friction energy dissipation damper, characterized in that, include: Outer cylinder (100) and energy-consuming components; The outer cylinder (100) has a cavity inside, and a fixing stop (110) is provided inside the cavity. The energy-consuming component includes: An inner cylinder (200) is movably disposed within the cavity. The inner cylinder (200) has a first opening at one end facing the fixed stop (110), and a movable stop (400) is movably disposed inside the inner cylinder (200). A disc spring assembly (300) is movably disposed inside the inner cylinder (200) along the length direction of the inner cylinder (200), and the disc spring assembly (300) is located on the side of the movable stop (400) away from the fixed stop (110); A pulley system (500) is provided, which can amplify the movement distance of the movable stop (400). The pulley system (500) includes a first fixed pulley (510) and a second fixed pulley (530). The first fixed pulley (510) is located on the fixed stop (110), and the second fixed pulley (530) is located on the inner cylinder (200) away from the fixed stop (110). A pulley rope (520) is wound between the first fixed pulley (510) and the second fixed pulley (530). One end of the pulley rope (520) is connected to the end of the inner cylinder (200) away from the fixed stop (110), and the other end is connected to the movable stop (400). Two energy-consuming components are provided, and the two energy-consuming components are respectively arranged on both sides of the fixed stop (110); A pressing block (600) is fixed on the fixed stop (110). The pressing block (600) is used to push the corresponding movable stop (400) to move when the fixed stop (110) moves toward the inner cylinder (200).

2. The disc spring self-resetting friction energy dissipation damper according to claim 1, characterized in that, It also includes a friction shaft (700), the middle of which is inserted into the through hole of the fixed stop (110), one end of which is slidably inserted into the disc spring assembly (300) of one of the energy-consuming components; the other end of which is slidably inserted into the disc spring assembly (300) of another of the energy-consuming components.

3. The disc spring self-resetting friction energy dissipation damper according to claim 1, characterized in that, The diameter of the first opening is larger than the outer diameter of the extrusion block (600).

4. The disc spring self-resetting friction energy dissipation damper according to claim 1, characterized in that, The outer cylinder (100) has a second opening at one end and a first connector (120) at the other end. The inner cylinder (200) passes through the second opening and is connected to an external device.

5. The disc spring self-resetting friction energy dissipation damper according to claim 4, characterized in that, The inner cylinder (200) has a second connector (800) near the second opening, and the second connector (800) extends to the outside of the cavity.

6. The disc spring self-resetting friction energy dissipation damper according to claim 2, characterized in that, The disc spring assembly (300) includes several disc springs (310), and each of the disc springs (310) has a hole in the middle.

7. The disc spring self-resetting friction energy dissipation damper according to claim 1, characterized in that, A guide portion is provided between the inner wall of the outer cylinder (100) and the outer wall of the inner cylinder (200) along the length direction of the outer cylinder (100), and the guide portion is used to make the inner cylinder (200) move along the length direction of the outer cylinder (100).

8. The disc spring self-resetting friction energy dissipation damper according to claim 7, characterized in that, The guide portion includes protrusions and grooves, which are respectively disposed on the inner wall of the outer cylinder (100) and the outer wall of the inner cylinder (200).

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