Expansion ring type self-resetting double-energy-consumption energy dissipation and shock absorption device

Abstract

The invention discloses an expansion ring type self-resetting double-energy-consumption energy dissipation and shock absorption device, which belongs to the technical field of structural energy dissipation and shock absorption and comprises an energy dissipation part, a resetting part and a connecting plate arranged on the outer side of the resetting part. The energy consumption part comprises a reducing metal body, an expanding metal body and an expanding ring; the reducing metal body is a reducing pipe body; the expanding metal body is a variable-diameter cylindrical body; the expanding metal body is arranged in a pipe body of the reducing metal body, and the expanding metal body, the reducing metal body and the connecting rod are integrated to jointly form an energy consumption part which is connected with the outside through an end connecting piece; the expanding ring sleeves the outer side of the expanding metal body; the tail end of the expansion ring is fixedly connected with the force transmission plate; the other side of the force transmission plate is fixedly connected with a force transmission rod; the reset part comprises a tensile disc spring and a compression-resistant disc spring; the tensile disc spring is arranged on the dowel bar in the pipe body of the reducing metal body; the compression-resistant disc spring is arranged on the dowel bar outside the reducing metal pipe body, and a limiting plate is arranged at the end part of the compression-resistant disc spring. According to the energy dissipation and shock absorption device, organic combination of energy dissipation, self-resetting and assembly in the energy dissipation and shock absorption device can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of structural energy dissipation and shock absorption, in particular to an expansion ring type self-resetting double energy dissipation and shock absorption device. Background Art

[0002] As an important infrastructure in modern society, the earthquake resistance of power facilities is directly related to the stable operation of the power grid and public safety. As an important part of the construction of power facilities, the traditional principle of earthquake resistance design is: "no damage in small earthquakes, repairable in medium earthquakes, and no collapse in large earthquakes". Generally, the cross-sectional size of the main building is increased or building materials with better stiffness and strength are used to resist the effects of earthquakes. When a building experiences a rare earthquake or even a major earthquake, the structural components will undergo large plastic deformation or even damage, which will lead to high post-earthquake repair costs, poor economic efficiency, and even inability to continue to use, causing great economic losses.

[0003] Existing seismic technology The technical means of seismic resistance are: installing energy dissipators or dampers in equipment or structures to reduce the vibration response of the structure by consuming seismic energy. The application of elastic support technology, such as using elastic supports instead of traditional rigid supports, reduces the displacement and acceleration response of equipment in earthquakes. The main disadvantages of existing shock absorption are: easy to damage and cannot be reused, uneven buffering effect, high cost, etc. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an expansion ring type self-resetting dual energy dissipation and shock absorption device, which can realize the organic combination of energy dissipation, self-resetting and assembly in the energy dissipation and shock absorption device.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: An expansion ring type self-resetting double energy dissipation and shock absorption device, comprising an energy dissipation part, a reset part and a connecting plate arranged outside the reset part; The energy dissipation part includes a reduced diameter metal body, an expanded diameter metal body and an expansion ring; the reduced diameter metal body is a reduced diameter tube body; the expanded diameter metal body is a reduced diameter columnar body; the expanded diameter metal body is arranged inside the tube body of the reduced diameter metal body, and the expanded diameter metal body, the reduced diameter metal body and the connecting rod are a whole, and are connected to the outside through the end connecting piece; the expansion ring is sleeved on the outside of the expanded diameter metal body; the tail end of the expansion ring is fixedly connected to the force transmission plate; the other side of the force transmission plate is fixedly connected to the force transmission rod; The reset part includes a tensile disc spring and a compressive disc spring; the tensile disc spring is arranged on a force transmission rod inside the reduced diameter metal body tube; the compressive disc spring is arranged on a force transmission rod outside the reduced diameter metal body tube, and its outer diameter is larger than the inner diameter of the reduced diameter metal body. A limit plate is arranged at the end of the compressive disc spring, and the limit plate is fixedly connected to the force transmission rod.

[0006] A further improvement of the technical solution of the present invention is that when the device is subjected to external force, the expansion ring moves back and forth, circulating through the expanding diameter metal body and the shrinking diameter metal body, thereby realizing a dual energy consumption mechanism of the expansion ring's diameter change energy consumption and friction energy consumption; when displacement occurs, the tensile disc spring and the compressive disc spring are squeezed respectively, and the disc spring provides a restoring force through deformation to complete the reset.

[0007] A further improvement of the technical solution of the present invention is that the reduced diameter metal body is divided into a straight section, a reduced diameter section and a reduced diameter section from right to left; the straight section and the reduced diameter section are both straight tubes, and the inner diameter of the straight section is larger than that of the reduced diameter section.

[0008] A further improvement of the technical solution of the present invention is that: external connectors are respectively provided at both ends of the device to connect with external devices.

[0009] A further improvement of the technical solution of the present invention is that: the expansion ring is interference fit with the diameter-expanding metal body, and the expansion ring is interference fit with the diameter-reducing metal body.

[0010] Due to the adoption of the above technical solution, the technical progress achieved by the present invention is: 1. The thin-walled structure has the advantages of high energy absorption efficiency, low cost, light weight, simple structure and easy processing. When subjected to external force, the thin-walled structure absorbs energy by producing plastic deformation, tearing and other methods, thereby protecting personnel safety. The present invention makes full use of the stable energy absorption capacity of thin-walled metal, stably dissipates external energy, forms a dual energy consumption mechanism through metal friction and deformation, and uses disc springs for reset. It realizes the self-reset function without replacement, reduces manual operation, has a long service life, and is more efficient.

[0011] 2. In the present invention, the expansion ring type self-resetting dual energy dissipation and shock absorption device utilizes the diameter change deformation of the metal thin-walled tube to buffer and absorb energy, and friction with the metal body to dissipate friction energy; the deformation has a long working stroke and is controllable, is insensitive to the load direction and loading speed, and has a high specific energy absorption. Compared with other energy dissipation devices, it has the advantages of easy processing, convenient adjustment, stable operation and a wide range of uses; at this stage, the expansion ring type energy dissipation equipment is mainly used in the aerospace field, and has a complex structure and is not easy to be processed in batches. It is very rare in the fields of electricity and construction. Combining the expansion ring with the disc spring is a highlight. 3. The entire device is a prefabricated structure, which can be designed in size according to on-site requirements and directly processed in the factory. It is convenient for on-site installation and replacement of components, improves production efficiency, and is more in line with the energy-saving and material-saving requirements of green construction. It is an important development trend. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an overall schematic diagram of the device in the present invention; Figure 2 It is a schematic diagram of the energy consumption system in the present invention; Figure 3 It is a schematic diagram of the reset system in the present invention; Figure 4 It is a schematic diagram of the device under pressure in the present invention; Figure 5 It is a schematic diagram of the tension state of the device in the present invention; Among them, 1. external connecting parts, 2. limit plate, 3. force transmission rod, 4. tensile disc spring, 5. reduced diameter metal body, 6. compressive disc spring, 7. force transmission plate, 8. expansion ring, 9. expanded diameter metal body, 10. connecting rod. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below with reference to the accompanying drawings and embodiments: 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" ... etc., indicating orientations or positional relationships, are 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, rather than indicating or implying 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.

[0014] like Figure 1 As shown, an expansion ring type self-resetting double energy dissipation and shock absorption device comprises an energy dissipation part, a reset part and a connecting plate arranged outside the reset part; like Figure 2 As shown, the energy dissipation part includes a reduced diameter metal body 5, an expanded diameter metal body 9 and an expansion ring 8; the reduced diameter metal body 5 is a variable diameter tube body, which is divided into a straight section, a reduced diameter section and a reduced diameter section from right to left; the expanded diameter metal body 9 is a variable diameter columnar body, and the expanded diameter metal body, the reduced diameter metal body and the connecting rod are a whole to form an energy dissipation part, which is connected to the outside through the end connecting piece; the expansion ring 8 is sleeved on the outside of the expanded diameter metal body 9, and the inner diameter is the same as that of the expanded diameter metal body 9; the tail end of the expansion ring 8 is fixedly connected to the force transmission plate 7; the other side of the force transmission plate 7 is fixedly connected to the force transmission rod 3; like Figure 3 As shown, the reset part includes a tensile disc spring 4 and a compressive disc spring 6; the tensile disc spring 4 is arranged on the force transmission rod 3 inside the reduced diameter metal body 5; the compressive disc spring 6 is arranged on the force transmission rod 3 outside the reduced diameter metal body 5, and the outer diameter is larger than the inner diameter of the reduced diameter metal body 5, and a limit plate 2 is arranged at the end of the compressive disc spring 6, and the limit plate 2 is fixedly connected to the force transmission rod 3; an external connecting piece 1 is arranged at the end of the force transmission rod 3.

[0015] Working principle: Under the action of external force, the force transmission rod 3 pushes the expansion ring 8 to move back to its original position, generating metal diameter change energy consumption and friction energy consumption. At the same time, when displacement occurs, the disc spring on the right side will be squeezed and deformed to generate a restoring force. At the same time, the limit plate 2, the reduced diameter metal body 5 and the force transmission plate 7 are used to constrain the disc spring reset distance, so that the entire device can automatically return to its initial position after completing the force transmission and energy consumption, reducing manual operation and making it more convenient to use.

[0016] like Figure 4 As shown, when the earthquake generates pressure, the connecting plate connected to the outside on the right side pushes the limit plate 2 to the left, and the pressure is evenly transmitted to the force transmission plate 7 by the force transmission rod 3, pushing the expansion ring 8 to move to the left and come into contact with the reduced diameter metal body 5. As the displacement increases, the expansion ring continues to move to the left. Due to the existence of the reduced diameter metal body 5, the expansion ring 8 undergoes a reduced diameter deformation to absorb external energy, and at the same time, friction energy is consumed with the reduced diameter metal body 5. When the compressive displacement occurs, the limit plate 2 squeezes the compression-resistant disc spring 6 to the left, and together with the right end of the reduced diameter metal body 5, limits the compression distance of the disc spring. After the external force disappears, the disc spring recovers and deforms to the right due to the existence of the restoring force, pushing the limit plate 2 to move to the right, driving the expansion ring 8 to move right to reset the device.

[0017] like Figure 5 As shown, when a tensile force occurs in an earthquake, the connecting plate connected to the right side externally pulls the limit plate 2 to the right, and the tensile force is evenly transmitted to the force transmission plate 7 by the force transmission rod 3, pulling the expansion ring 8 to move to the right to expand and deform with the expanded metal body 9 to absorb external energy, and at the same time, friction energy is consumed with the expanded metal body 9. When a tensile displacement occurs, the force transmission plate 7 squeezes the tensile disc spring 4 to the right. After the external force disappears, the disc spring is deformed to the left due to the existence of the restoring force, pushing the force transmission plate 7 to move to the left, driving the expansion ring 8 to move to the left to reset the device.

[0018] In summary, the present invention can achieve an organic combination of energy dissipation, self-reset and assembly in the energy dissipation and shock absorption device.

Claims

1. An expansion ring type self-resetting double energy dissipation and shock absorption device, characterized in that: It includes an energy consumption part, a reset part and a connecting plate arranged outside the reset part; The energy dissipation part comprises a reduced diameter metal body (5), an expanded diameter metal body (9) and an expansion ring (8); the reduced diameter metal body (5) is a reduced diameter tube body; the expanded diameter metal body (9) is a reduced diameter columnar body; the expanded diameter metal body (9) is arranged inside the tube body of the reduced diameter metal body (5); the expanded diameter metal body (9), the reduced diameter metal body (5) and the connecting rod are an integral whole and are connected to the outside through an end connecting piece; the expansion ring (8) is sleeved on the outside of the expanded diameter metal body (9); the tail end of the expansion ring (8) is fixedly connected to the force transmission plate (7); the other side of the force transmission plate (7) is fixedly connected to the force transmission rod (3); The reset portion comprises a tensile disc spring (4) and a compressive disc spring (6); the tensile disc spring (4) is arranged on a force transmission rod (3) inside the tube of the reduced diameter metal body (5); the compressive disc spring (6) is arranged on a force transmission rod (3) outside the tube of the reduced diameter metal body (5), and has an outer diameter greater than an inner diameter of the reduced diameter metal body (5); a limit plate (2) is arranged at the end of the compressive disc spring (6), and the limit plate (2) is fixedly connected to the force transmission rod (3).

2. The expansion ring type self-resetting double energy dissipation and shock absorption device according to claim 1 is characterized in that: When the device is acted upon by an external force, the expansion ring (8) moves back and forth, circulates through the diameter-expanding metal body (9) and the diameter-reducing metal body (5), and realizes a dual energy consumption mechanism of the expansion ring's diameter-changing energy consumption and friction energy consumption; when displacement occurs, the tension-resistant disc spring (3) and the compression-resistant disc spring (6) are respectively squeezed, and the disc spring provides a restoring force through deformation to complete the resetting.

3. The expansion ring type self-resetting double energy dissipation and shock absorption device according to claim 1 is characterized in that: The reduced diameter metal body (5) is divided from right to left into a straight section, a reduced diameter section and a reduced diameter section; the straight section and the reduced diameter section are both straight tubes, and the inner diameter of the straight section is larger than the inner diameter of the reduced diameter section.

4. The expansion ring type self-resetting dual energy dissipation and shock absorption device according to claim 1 is characterized in that: External connecting pieces (1) are respectively provided at two ends of the device for connecting to external devices.

5. The expansion ring type self-resetting double energy dissipation and shock absorption device according to claim 1 is characterized in that: The expansion ring (8) is in interference fit with the diameter-expanding metal body (9), and the expansion ring (8) is in interference fit with the diameter-reducing metal body (5).

Images