Detachable and replaceable double-order metal damper with coaxial output

Abstract

The detachable and replaceable double-step metal damper comprises a strong side damping end, a weak side damping end and a middle plate, the strong side damping end comprises strong side end plates, strong side mild steel plates and a strong side pin shaft, the strong side end plates are located on the two sides of the middle plate, and the strong side mild steel plates are connected with the middle plate and the strong side end plates; the strong side pin shaft is positioned between the two strong side end plates, and the end part of the strong side pin shaft is inserted into the strong side end plates; the weak-side damping end comprises weak-side end plates, weak-side mild steel plates and weak-side pin shafts, the weak-side end plates are located on the two sides of the middle plate, the weak-side mild steel plates are connected with the middle plate and the weak-side end plates, the weak-side pin shafts are located between the two weak-side end plates, the ends of the weak-side pin shafts are inserted into the weak-side end plates, and the strong-side pin shafts and the weak-side pin shafts are located at the two ends of the middle plate respectively; and a force transmission limiting rod is connected between the two weak side end plates. The damper has the effect of being convenient to replace, two output forces of the damper are on the same axis, and no additional bending moment is applied to a building.

Description

Technical Field

[0001] This utility model relates to the field of dampers, and in particular to a coaxial, detachable, replaceable, two-stage metal damper. Background Technology

[0002] A damper is a device that provides resistance to motion and dissipates kinetic energy. Various types of dampers (or shock absorbers) have long been used in industries such as aerospace, aviation, military, firearms, and automobiles for vibration reduction and energy dissipation. Since the 1970s, these technologies have been gradually applied to structural engineering projects such as buildings, bridges, and railways. In the construction field, metal dampers are widely used for vibration reduction.

[0003] like Figure 1 This is a type of soft steel damper, comprising an upper metal plate 31, a lower metal plate 32, and soft steel plates 33, with multiple soft steel plates 33 fixed between the upper metal plate 31 and the lower metal plate 32. During installation, pre-selected embedded points are used to fix embedded parts at these points. The lower metal plate is then welded to the embedded parts, thus installing the damper. However, after multiple cycles of vibration reduction and energy dissipation, the soft steel plates may experience fatigue, cracks, or other issues, requiring replacement. Since the soft steel damper is welded to the embedded parts, removing it is inconvenient, and installing a new one requires re-welding, making replacement inconvenient and requiring improvement. Utility Model Content

[0004] To facilitate the replacement of metal dampers, this application provides a removable and replaceable two-stage metal damper with coaxial output.

[0005] This application provides a coaxial output, detachable and replaceable two-stage metal damper using the following technical solution:

[0006] A coaxial, detachable, replaceable, two-stage metal damper includes a strong-side damping end, a weak-side damping end, and an intermediate plate. The strong-side damping end includes a strong-side end plate, a strong-side soft steel plate, and a strong-side pin. The strong-side end plate is located on both sides of the intermediate plate. Several strong-side soft steel plates connect the intermediate plate and the strong-side end plate. The strong-side pin is located between two strong-side end plates, and its end is inserted into one of the strong-side end plates. The weak-side damping end includes a weak-side end plate, a weak-side soft steel plate, and a weak-side pin. The weak-side end plate is located on both sides of the intermediate plate. Several weak-side soft steel plates connect the intermediate plate and the weak-side end plate. The weak-side pin is located between two weak-side end plates, and its end is inserted into one of the weak-side end plates. The number of weak-side soft steel plates is less than the number of strong-side soft steel plates. The strong-side pin and the weak-side pin are located at opposite ends of the intermediate plate. A force-transmitting limiting rod connects the two weak-side end plates.

[0007] By adopting the above technical solution, the metal damper consists of a strong-side damping end and a weak-side damping end, which are connected by an intermediate plate. The weak-side damping end transmits force to the strong-side damping end through the intermediate plate. When the damper needs to be replaced, the strong-side pin and the weak-side pin are connected to the force-bearing end (strong-side end plate and weak-side end plate) by plugging, which facilitates disassembly. Only the new intermediate plate and the strong-side soft steel plates and weak-side soft steel plates on both sides need to be replaced. Then, the intermediate plate, the strong-side soft steel plates and the weak-side soft steel plates are installed as a whole between the two strong-side end plates (weak-side end plates), and the strong-side pin and the weak-side pin are inserted. Finally, the force-transmitting limit rod is inserted to complete the replacement. Compared with the traditional method of fixing it to the embedded parts by welding, the metal damper of this application is easy to disassemble and replace, eliminating the tedious process of removing the entire damper and re-welding. Moreover, the two outputs of the damper are on the same axis, and there is no additional bending moment on the building.

[0008] Preferably, the strong side end plate has a strong side mounting hole for inserting a strong side pin, and the weak side end plate has a weak side mounting hole for inserting a weak side pin.

[0009] By adopting the above technical solution, the two strong-side end plates are connected to the strong-side pin through the strong-side mounting holes, and the two weak-side end plates are connected to the weak-side pin through the weak-side mounting holes, so that the damper is formed as a whole.

[0010] Preferably, the weak side end plate has an mounting waist-shaped hole for inserting a force transmission limiting rod; the middle plate has a force transmission waist-shaped hole, the center of the cross section of the force transmission waist-shaped hole coincides with the center of the cross section of the mounting waist-shaped hole, and the length of the cross section of the force transmission waist-shaped hole is greater than the length of the cross section of the mounting waist-shaped hole.

[0011] By adopting the above technical solution, a waist-shaped hole is installed to connect two weak-side end plates and a force transmission limit rod passes through the middle plate. When the middle plate moves to the side of the limit waist-shaped hole and contacts the force transmission limit rod, the external force can be transmitted to the strong-side damping end.

[0012] Preferably, the weak-side soft steel plate is symmetrically welded to both sides of the intermediate plate.

[0013] By adopting the above technical solution, the weak-side soft steel plate is fixed to both sides of the middle plate by welding, which makes installation more convenient and the weak-side damping end is more stable.

[0014] Preferably, the strong-side soft steel plates are symmetrically welded to both sides of the intermediate plate.

[0015] By adopting the above technical solution, the strong-side soft steel plate is fixed to both sides of the middle plate by welding, which is relatively convenient for installation and the strong-side damping end is also relatively stable.

[0016] Preferably, there are two force transmission limiting rods, which are located between the strong side soft steel plate and the weak side soft steel plate, and are spaced apart.

[0017] By adopting the above technical solution, two limit rods are set to further improve the force transmission effect and also increase the overall stability of the damper.

[0018] Preferably, both the strong-side soft steel plate and the weak-side soft steel plate are provided with through grooves.

[0019] By adopting the above technical solution, opening through slots on the strong-side and weak-side soft steel plates can reduce costs and improve the effect of dispersing external forces on a single soft steel plate (increasing the force-dispersing surface).

[0020] The main technical effects of this utility model are reflected in the following aspects:

[0021] 1. The metal damper of this utility model is easy to disassemble and replace, and the two outputs of the damper are on the same axis, so it does not exert an additional bending moment on the building.

[0022] 2. This utility model connects two weak-side end plates by opening an installation waist-shaped hole and passes a force transmission limiting rod through the middle plate. When the middle plate moves to the side of the limiting waist-shaped hole and contacts the force transmission limiting rod, the external force can be transmitted to the strong-side damping end.

[0023] 3. This utility model reduces costs by opening through grooves on the strong-side and weak-side soft steel plates, and increases the force-dispersing surface to improve the effect of dispersing external forces on a single soft steel plate. Attached Figure Description

[0024] Figure 1 It is a type of soft steel damper in related technologies.

[0025] Figure 2 This is a schematic diagram of the overall structure of a detachable and replaceable two-stage metal damper with coaxial output according to an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the structure of the strong side end plate, the weak side end plate, and the middle plate in the embodiment.

[0027] Figure 4 This is a schematic diagram of the structure of the strong-side soft steel plate in an embodiment.

[0028] Explanation of reference numerals in the attached diagram: 1. Strong side damping end; 11. Strong side end plate; 12. Strong side soft steel plate; 13. Strong side pin; 2. Weak side damping end; 21. Weak side end plate; 22. Weak side soft steel plate; 23. Weak side pin; 3. Intermediate plate; 4. Strong side mounting hole; 5. Weak side mounting hole; 6. Force transmission limit rod; 7. Mounting slot; 8. Force transmission slot; 9. Through slot; 31. Upper metal plate; 32. Lower metal plate; 33. Soft steel plate. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail to make the technical solution of this application easier to understand and master.

[0030] This application discloses a removable and replaceable two-stage metal damper with coaxial output.

[0031] Reference Figure 2 and Figure 3 This embodiment of a coaxial, detachable, replaceable, two-stage metal damper includes a strong-side damping end 1, a weak-side damping end 2, and an intermediate plate 3. The strong-side damping end 1 includes a strong-side end plate 11, strong-side soft steel plates 12, and a strong-side pin 13. The strong-side end plates 11 are located on both sides of the intermediate plate 3. Several strong-side soft steel plates 12 connect the intermediate plate 3 and the strong-side end plates 11. In this embodiment, six sets of strong-side soft steel plates 12 are installed, with each set symmetrically distributed on both sides of the intermediate plate 3. The strong-side soft steel plates 12 are symmetrically welded to both sides of the intermediate plate 3. The strong-side pin 13 is located between two strong-side end plates 11, and its end is inserted into the strong-side end plate 11. A strong-side mounting hole 4 is provided on the strong-side end plate 11 for the strong-side pin 13 to be inserted. The length directions of the strong-side pin 13 and the weak-side pin 23 are parallel to each other. The present application discloses a removable and replaceable two-stage metal damper with coaxial output, which has two yield forces, one large and one small, and the two outputs of the damper are on the same axis, thus adding a bending moment to the building.

[0032] Reference Figure 2 and Figure 3 The weak-side damping end 2 includes a weak-side end plate 21, a weak-side soft steel plate 22, and a weak-side pin 23. The weak-side end plate 21 is located on both sides of the intermediate plate 3. Several weak-side soft steel plates 22 connect the intermediate plate 3 and the weak-side end plate 21. In this embodiment, three sets of weak-side soft steel plates 22 are installed, with each set symmetrically distributed on both sides of the intermediate plate 3. The weak-side soft steel plates 22 are symmetrically welded to both sides of the intermediate plate 3. The weak-side pin 23 is located between two weak-side end plates 21, and its end is inserted into the weak-side end plate 21. The weak-side end plate 21 has a weak-side mounting hole 5 for the weak-side pin 23 to be inserted.

[0033] Reference Figure 2 and Figure 3 The strong-side pin 13 and the weak-side pin 23 are located at both ends of the intermediate plate 3. A force-transmitting limiting rod 6 connects the two weak-side end plates 21. A mounting waist-shaped hole 7 is provided on the weak-side end plate 21 for the force-transmitting limiting rod 6 to be inserted. A force-transmitting waist-shaped hole 8 is provided on the intermediate plate 3. The center of the cross-section of the force-transmitting waist-shaped hole 8 coincides with the center of the cross-section of the mounting waist-shaped hole 7, and the length of the cross-section of the force-transmitting waist-shaped hole 8 is greater than the length of the cross-section of the mounting waist-shaped hole 7. When the damper is subjected to axial tension (compression), the weak-side damping end 2 yields and deforms first to dissipate energy. At this time, the weak-side end plate 21 has a horizontal displacement relative to the intermediate plate 3, while the strong-side end plate 11 has no horizontal displacement relative to the intermediate plate 3. When the force-transmitting limiting rod 6 contacts the side of the force-transmitting waist-shaped hole 8 on the intermediate plate 3, the first-order yield displacement reaches the limit position. When the horizontal displacement of the damper exceeds the first yield displacement, the weak side end plate 21 transmits the force to the middle plate 3 through the force transmission limit rod 6, and begins to pull the strong side soft steel plate 12 into the second yield deformation. At this time, the weak side soft steel plate 21 no longer increases the yield deformation.

[0034] Reference Figure 2 Two force transmission limit rods 6 are installed, located between the strong side soft steel plate 12 and the weak side soft steel plate 22, with the two force transmission limit rods 6 spaced apart.

[0035] Reference Figure 2 and Figure 4 Both the strong-side soft steel plate 12 and the weak-side soft steel plate 22 are provided with through grooves 9. The cross-section of the through grooves 9 is rhomboid.

[0036] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A detachable and replaceable two-stage metal damper with coaxial output, characterized in that: The system includes a strong-side damping end (1), a weak-side damping end (2), and an intermediate plate (3). The strong-side damping end (1) includes a strong-side end plate (11), a strong-side soft steel plate (12), and a strong-side pin (13). The strong-side end plate (11) is located on both sides of the intermediate plate (3). Several strong-side soft steel plates (12) connect the intermediate plate (3) and the strong-side end plate (11). The strong-side pin (13) is located between two strong-side end plates (11), and the end of the strong-side pin (13) is inserted into the strong-side end plate (11). The weak-side damping end (2) includes a weak-side end plate (21) and a weak-side soft steel plate (22). The weak side pin (23) and the weak side end plate (21) are located on both sides of the intermediate plate (3). Several weak side soft steel plates (22) connect the intermediate plate (3) and the weak side end plate (21). The weak side pin (23) is located between two weak side end plates (21). The end of the weak side pin (23) is inserted into the weak side end plate (21). The number of weak side soft steel plates (22) is less than the number of strong side soft steel plates (12). The strong side pin (13) and the weak side pin (23) are located at both ends of the intermediate plate (3). A force transmission limit rod (6) is connected between the two weak side end plates (21).

2. The removable and replaceable two-stage metal damper with coaxial output according to claim 1, characterized in that: The strong side end plate (11) is provided with a strong side mounting hole (4) for the strong side pin (13) to be inserted. The weak side end plate (21) is provided with a weak side mounting hole (5) for the weak side pin (23) to be inserted.

3. The removable and replaceable two-stage metal damper with coaxial output according to claim 1, characterized in that: The weak side end plate (21) is provided with an installation waist-shaped hole (7) for the force transmission limiting rod (6) to be inserted; the middle plate (3) is provided with a force transmission waist-shaped hole (8) with the center of the cross section of the force transmission waist-shaped hole (8) and the center of the cross section of the installation waist-shaped hole (7) coinciding, and the length of the cross section of the force transmission waist-shaped hole (8) being greater than the length of the cross section of the installation waist-shaped hole (7).

4. The removable and replaceable two-stage metal damper with coaxial output according to claim 1, characterized in that: The weak side soft steel plate (22) is symmetrically welded to both sides of the intermediate plate (3).

5. A detachable and replaceable two-stage metal damper with coaxial output according to claim 1, characterized in that: The strong side soft steel plate (12) is symmetrically welded to both sides of the middle plate (3).

6. The removable and replaceable two-stage metal damper with coaxial output according to claim 1, characterized in that: Two force transmission limiting rods (6) are provided, and the two force transmission limiting rods (6) are located between the strong side soft steel plate (12) and the weak side soft steel plate (22), and the two force transmission limiting rods (6) are spaced apart.

7. A detachable and replaceable two-stage metal damper with coaxial output according to claim 1, characterized in that: Both the strong-side soft steel plate (12) and the weak-side soft steel plate (22) are provided with through grooves (9).

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