Metal composite friction energy dissipation device

Abstract

The utility model relates to a metal composite friction energy dissipater which comprises a shell, energy dissipation mechanisms for guiding displacement energy dissipation are arranged on the upper side and the lower side of the inner wall of the shell, and assembling mechanisms convenient to assemble are arranged on the upper side and the lower side of the shell. According to the metal composite friction energy dissipater, the energy dissipation mechanism is arranged, and through mutual cooperation of a guide shaft, a sliding block, a limiting spring, a connecting steel plate, an energy dissipation piece and the like, friction and energy loss can be generated through relative movement of a friction plate and a friction steel plate in the movement process; meanwhile, when the friction plates and the friction steel plates are subjected to displacement friction energy dissipation, the backs of the friction steel plates on the two sides are connected with the guide shafts through the sliding blocks, a certain degree of elastic support is provided in the movement process, relative movement of the friction plates or the friction rings is slowed down, the friction plates or the friction rings are brought back to the original position after movement is finished, and reverse friction energy dissipation use is achieved; the initial rigidity is large, the secondary rigidity is zero, the hysteretic curve is full, the energy consumption effect is better, and the limit displacement is large.

Description

Technical Field

[0001] The utility model relates to the technical field of friction energy dissipators, in particular to a metal composite friction energy dissipator. Background Art

[0002] The metal composite friction energy absorber converts the vibration energy of the building into heat energy absorption by utilizing the opposite friction force generated on the contact surfaces when two contact surfaces undergo relative displacement. The friction energy absorber has the characteristics of simple structure, strong energy absorption capacity, and is not affected by load frequency.

[0003] As disclosed in Chinese patent announcement number (CN218814481 U), a metal composite friction energy dissipator comprises: an energy dissipator body, the energy dissipator body comprises a friction energy dissipation component and a bending energy dissipation plate, the friction energy dissipation component comprises a first friction steel plate and a second friction steel plate, two first friction steel plates are vertically arranged in parallel, two second friction steel plates are symmetrically arranged in left and right and vertically arranged in parallel, a plurality of energy dissipation plates are vertically arranged in parallel and perpendicular to the second friction steel plates, a plurality of the bending energy dissipation plates are fixedly connected between the two second friction steel plates, and the outer side surfaces of the two second friction steel plates are respectively slidably and fixedly connected to the opposite side surfaces of the two first friction steel plates, thereby solving the problem of accelerated friction loss between metal parts, rapid decrease in the effect of consuming the vibration load of the building structure, and reducing the service life of the metal composite friction energy dissipator.

[0004] However, the above patent still has the problem of poor support stability in the internal displacement direction of the energy dissipator. For example, the above patent realizes displacement energy dissipation by bending a bent energy dissipation plate to cooperate with two friction steel plates, but this method mainly uses the bent energy dissipation plate for deformation energy dissipation, and the two friction steel plates are connected to the bent energy dissipation plate, while the energy dissipation device mainly realizes offset energy dissipation through reverse displacement on both sides. In the above method, the friction plate does not have a clear limiting method. When the bent energy dissipation plate deforms to dissipate energy, it will drive the two friction steel plates to move in the same direction, resulting in resonance and other phenomena that affect the energy dissipation effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a metal composite friction energy dissipator having the advantages of good friction energy dissipation effect, etc., and solves the problem of poor support stability in the displacement direction of the internal displacement direction of the energy dissipator in the prior art.

[0006] To achieve the above object, the utility model provides the following technical solutions: a metal composite friction energy dissipator, comprising a shell, wherein the upper and lower sides of the inner wall of the shell are provided with energy dissipation mechanisms for guiding displacement energy dissipation, and the upper and lower sides of the shell are provided with assembly mechanisms for easy assembly;

[0007] The energy dissipation mechanism includes two guide shafts, two sliders, two limit springs, two connecting steel plates and energy dissipation parts. The two guide shafts are horizontally fixed on the upper and lower sides of the inner wall of the shell respectively. The outer sides of the two sliders are respectively provided with sliding holes, and the two sliders are respectively slidably connected to the outer sides of the two guide shafts through the sliding holes. The opposite sides of the two limit springs are respectively fixed to the left and right inner walls of the shell, and the opposite sides of the two limit springs are respectively fixed to the outer sides of the two sliders. The two connecting steel plates are respectively fixed to the opposite sides of the two sliders. The energy dissipation parts are arranged on the opposite sides of the two connecting steel plates to realize composite friction energy dissipation.

[0008] Furthermore, the energy dissipation component includes two friction steel plates and a friction plate. The two friction steel plates are respectively fixed to the opposite sides of the two connecting steel plates. The opposite sides of the two friction steel plates are each provided with a slot, and the friction plate is inserted between the left and right inner walls of the slot.

[0009] Furthermore, the number of the friction plates is not less than two and they are evenly distributed on the opposite sides of the two friction steel plates.

[0010] Furthermore, a connection opening is provided in the middle of the outer side of the shell, and a torsion belt is fixed between the upper and lower inner walls of the connection opening.

[0011] Furthermore, the assembly mechanism includes fixing plates fixed on the upper and lower sides of the shell, two rib plates are fixed on the left and right sides of the two fixing plates, and mounting plates are fixed on the opposite side of the rib plates on the left and right sides, and mounting holes are opened on the front sides of the two mounting plates.

[0012] Furthermore, the number of the mounting holes is no less than two and they are evenly distributed on the front sides of the two mounting plates.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The metal composite friction energy dissipator is provided with an energy dissipation mechanism. Through the cooperation among the guide shaft, slider, limit spring, connecting steel plate and energy dissipation parts, the friction plate and the friction steel plate can have relative movement during the movement, thereby generating friction and energy loss. At the same time, when the friction plate and the friction steel plate are performing displacement friction energy dissipation, the backs of the friction steel plates on both sides are connected to the guide shaft through the slider, providing a certain degree of elastic support during the movement, slowing down the relative movement of the friction plate or friction ring, and bringing it back to the original position after the movement, realizing reverse friction energy dissipation. The device has a large initial stiffness, zero secondary stiffness, a full hysteresis curve, a better energy dissipation effect, and a large limit displacement.

[0015] 2. The metal composite friction energy absorber is provided with an assembly mechanism. Through the cooperation among the fixing plate, the rib plate, the mounting plate and the mounting holes, the fixing plate can be connected to the outer shell so as to facilitate the fixing of the mounting plate to the building. The rib plate can form an I-shaped structure with the mounting plate to increase the load-bearing stability, and multiple mounting holes are used for installation with building bolts. This method is easy to install and disassemble, and does not require maintenance under normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the energy dissipation mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the assembly mechanism of the utility model.

[0019] In the figure: 1 housing, 2 energy dissipation mechanism, 21 guide shaft, 22 slider, 23 limit spring, 24 connecting steel plate, 25 energy dissipation member, 251 friction steel plate, 252 friction plate, 253 slot, 3 assembly mechanism, 31 fixing plate, 32 rib plate, 33 mounting plate, 34 mounting hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 A metal composite friction energy dissipator in this embodiment includes a shell 1, and an energy dissipation mechanism 2 for guiding displacement energy dissipation is provided on the upper and lower sides of the inner wall of the shell 1, and an assembly mechanism 3 for easy assembly is provided on the upper and lower sides of the shell 1.

[0022] In this embodiment, a connection opening is provided in the middle of the outer side of the housing 1, and a torsion belt is fixed between the upper and lower inner walls of the connection opening.

[0023] See also Figure 2In order to perform composite limit friction energy dissipation, the energy dissipation mechanism 2 in this embodiment includes two guide shafts 21, two sliders 22, two limit springs 23, two connecting steel plates 24 and energy dissipation parts 25. The two guide shafts 21 are respectively fixed horizontally on the upper and lower sides of the inner wall of the housing 1. The outer sides of the two sliders 22 are respectively provided with sliding holes, and the two sliders 22 are respectively slidably connected to the outer sides of the two guide shafts 21 through the sliding holes. The opposite sides of the two limit springs 23 are respectively fixed to the left and right inner walls of the housing 1, and the opposite sides of the two limit springs 23 are respectively fixed to the outer sides of the two sliders 22. Displacement friction energy dissipation is performed on the friction plate 252 and the friction steel plate 251. When the friction plates 251 on both sides are connected to the guide shaft 21 through the slider 22, the friction plates 251 can move axially along the guide shaft 21. The two connecting steel plates 24 are respectively fixed to the opposite sides of the two sliders 22. The slider 22 can be pushed to move toward one end of the guide shaft 21 by the limit spring 23. The limit spring 23 is arranged on both sides to provide preload for the friction plate 252. The energy dissipation member 25 is arranged on the opposite side of the two connecting steel plates 24 to realize compound friction energy dissipation, provide a certain degree of elastic support during the movement, slow down the relative movement of the friction plate 252, and bring it back to the original position after the movement to realize reverse friction energy dissipation.

[0024] The energy dissipation member 25 includes two friction steel plates 251 and a friction sheet 252 . The two friction steel plates 251 are respectively fixed to opposite sides of the two connecting steel plates 24 . A slot 253 is provided on opposite sides of the two friction steel plates 251 . The friction sheet 252 is inserted between the left and right inner walls of the slot 253 .

[0025] In this embodiment, the number of friction plates 252 is not less than two, and they are evenly distributed on the opposite side of the two friction steel plates 251. They are arranged at the bottom of the building through the assembly mechanism 3. When friction energy dissipation is required, the friction plates 252 and the friction steel plates 251 will move relative to each other during the movement, thereby generating friction and energy loss, and absorbing part of the seismic load.

[0026] See also Figure 3 In order to facilitate the assembly and energy dissipation with the building, the assembly mechanism 3 in this embodiment includes a fixing plate 31 fixed on the upper and lower sides of the shell 1, and the fixing plate 31 is connected to the shell 1 so as to facilitate the fixation between the mounting plate 33 and the building. Two rib plates 32 are fixed on the left and right sides of the two fixing plates 31, and the mounting plates 33 are fixed on the opposite side of the rib plates 32 on the left and right sides, and the front sides of the two mounting plates 33 are provided with mounting holes 34.

[0027] In this embodiment, the number of mounting holes 34 is not less than two and is evenly distributed on the front of the two mounting plates 33. The rib plate 32 can form an I-shaped structure with the mounting plate 33 to increase the load-bearing stability, and multiple mounting holes 34 are used for installation with building bolts.

[0028] The working principle of the above embodiment is:

[0029] (1) When the composite limit friction energy dissipation is used, the assembly mechanism 3 is arranged at the bottom of the building. When friction energy dissipation is required, the friction plate 252 and the friction steel plate 251 will move relative to each other during the movement, thereby generating friction and energy loss, and absorbing part of the seismic load. At the same time, when the friction plate 252 and the friction steel plate 251 are performing displacement friction energy dissipation, the backs of the friction steel plates 251 on both sides are connected to the guide shaft 21 through the slider 22, so that the friction steel plates 251 can move axially along the guide shaft 21, and the limit spring 23 can be used to push the slider 22 to move toward one end of the guide shaft 21. The limit spring 23 is arranged on both sides to provide preload for the friction plate 252, and provide a certain degree of elastic support during the movement, and slow down the relative movement of the friction plate 252, and bring it back to its original position after the movement, so as to achieve reverse friction energy dissipation.

[0030] (2) When it is convenient to assemble and dissipate energy with a building, the fixing plate 31 is connected to the outer shell 1 so that the mounting plate 33 can be fixed to the building. The rib plate 32 can form an I-shaped structure with the mounting plate 33 to increase the load-bearing stability, and multiple mounting holes 34 are used for installation with building bolts.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] The standard parts used in this application document can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in this field. Therefore, this application document will no longer explain the control method and circuit connection in detail.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A metal composite friction energy absorber, comprising a housing (1), characterized in that: An energy dissipation mechanism (2) for guiding displacement and dissipating energy is provided on the upper and lower sides of the inner wall of the shell (1), and an assembly mechanism (3) for facilitating assembly is provided on the upper and lower sides of the shell (1); The energy dissipation mechanism (2) comprises two guide shafts (21), two sliders (22), two limit springs (23), two connecting steel plates (24) and an energy dissipation member (25). The two guide shafts (21) are respectively fixed horizontally on the upper and lower sides of the inner wall of the housing (1). The outer sides of the two sliders (22) are respectively provided with sliding holes, and the two sliders (22) are respectively slidably connected to the outer sides of the two guide shafts (21) through the sliding holes. The opposite sides of the two limit springs (23) are respectively fixed to the left and right inner walls of the housing (1), and the opposite sides of the two limit springs (23) are respectively fixed to the outer sides of the two sliders (22). The two connecting steel plates (24) are respectively fixed to the opposite sides of the two sliders (22). The energy dissipation member (25) is arranged on the opposite sides of the two connecting steel plates (24) to achieve composite friction energy dissipation.

2. A metal composite friction energy absorber according to claim 1, characterized in that: The energy dissipation component (25) comprises two friction steel plates (251) and a friction plate (252). The two friction steel plates (251) are respectively fixed to opposite sides of two connecting steel plates (24). The opposite sides of the two friction steel plates (251) are each provided with a slot (253). The friction plate (252) is inserted between the left and right inner walls of the slot (253).

3. A metal composite friction energy absorber according to claim 2, characterized in that: The number of the friction plates (252) is not less than two and they are evenly distributed on the opposite side of the two friction steel plates (251).

4. The metal composite friction energy absorber according to claim 1, characterized in that: A connection opening is provided in the middle of the outer side of the shell (1), and a torsion belt is fixed between the upper and lower inner walls of the connection opening.

5. The metal composite friction energy absorber according to claim 1, characterized in that: The assembly mechanism (3) comprises fixing plates (31) fixed to the upper and lower sides of the housing (1); two rib plates (32) are fixed to the left and right sides of the two fixing plates (31); mounting plates (33) are fixed to the opposite sides of the rib plates (32) on the left and right sides; and mounting holes (34) are provided on the front sides of the two mounting plates (33).

6. The metal composite friction energy absorber according to claim 5, characterized in that: The number of the mounting holes (34) is no less than two and they are evenly distributed on the front sides of the two mounting plates (33).

Images