An assembled damping device applicable to steel structures

Abstract

The present invention relates to the technical field of dampers, and particularly to a prefabricable damper applicable to steel structures, which has damping effects in multiple directions and damping effect on torsion, with good damping effect, simple structure and small installation space required; it includes a first assembly plate and a second assembly plate, the first assembly plate is connected to component A, and the second assembly plate is connected to component B; it further includes a force application rod, a contact head and a damping cylinder. One end of the force application rod is connected to the first assembly plate, a contact head is installed at the other end of the force application rod, the damping cylinder is installed on the second assembly plate through an elastic component, the damping cylinder is filled with ultra-high viscosity oil, the force application rod passes through the opening of the damping cylinder to make the contact head extend into the oil cavity of the damping cylinder, the force application rod does not contact all side walls of the opening of the damping cylinder, the contact head does not contact all inner walls of the damping cylinder, the contact head contacts the ultra-high viscosity oil, and a sealing component is arranged between the force application rod and the opening of the damping cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of dampers, and particularly to a prefabricable damper applicable to steel structures. Background Art

[0002] In order to improve the seismic performance of steel structures, dampers are installed at the joint positions of steel structures. A variety of dampers have been proposed in the prior art. For example, a friction damper based on a prefabricated steel structure residential structure system proposed in a Chinese patent application with the publication number "CN114961008A", a butt-jointed mild steel shock-absorbing damper proposed in a Chinese patent application with the publication number "CN112195766A", a damper for a prefabricated structure proposed in a Chinese patent with the patent number "201610996900.5", a viscous fluid damper and a steel structure system proposed in a Chinese patent application with the publication number "CN115370031A", etc.

[0003] These dampers all have their advantages, but like most existing dampers, they all have the following deficiencies:

[0004] First, the main damping direction of existing dampers is fixed. In practical applications, multiple dampers often need to be used in combination to cope with the multi-directional vibration of steel structures. The structure is complex and a large installation space is required.

[0005] Second, the damping direction is along the axial direction and cannot cope with the torsional vibration of steel structures.

[0006] The above two deficiencies result in great limitations in the assembly and application of existing dampers in steel structures and poor damping effects. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a prefabricable damper applicable to steel structures, which has damping effects in multiple directions and damping effect on torsion, has good damping effects, a simple structure, and requires a small installation space.

[0008] An assembled damper applicable to steel structures according to the present invention includes a first assembly plate and a second assembly plate. The first assembly plate is connected to component A at the node of the steel structure, and the second assembly plate is connected to component B at the node of the steel structure; it further includes a force application rod, a contact head, and a damper cylinder. One end of the force application rod is connected to the first assembly plate, and a contact head is installed at the other end of the force application rod. The damper cylinder is installed on the second assembly plate through an elastic component. An oil chamber and an opening communicating with the oil chamber are provided in the damper cylinder. The oil chamber is filled with ultra-high viscosity oil. The force application rod passes through the opening of the damper cylinder so that the contact head extends into the oil chamber of the damper cylinder. The force application rod does not contact all the side walls of the opening of the damper cylinder, and the contact head does not contact all the inner walls of the damper cylinder. The contact head contacts the ultra-high viscosity oil. A sealing component is provided between the force application rod and the opening of the damper cylinder; the first assembly plate and the second assembly plate are respectively connected to component A and component B at the node of the steel structure. When component A vibrates relative to component B, the force application rod and the contact head will stir the ultra-high viscosity oil in the oil chamber of the damper cylinder. The adhesion of the ultra-high viscosity oil forms a damping force on the contact head, so as to buffer and damp between the first assembly plate and the second assembly plate. Since the force application rod does not contact all the side walls of the opening of the damper cylinder, and the contact head does not contact all the inner walls of the damper cylinder, the contact head can move in multiple directions in the oil chamber of the damper cylinder, thereby forming a damping effect in multiple directions. At the same time, the contact head can rotate in the damper cylinder, thereby forming a damping effect on torsion. The damping effect is good. Compared with the combination of multiple dampers, the structure is simple, the installation space required is small, and the limitation is small.

[0009] Preferably, multiple fin plates are provided on the outer surface of the contact head, and the fin plates do not contact all the inner walls of the damper cylinder; by arranging multiple fin plates horizontally or vertically, the contact area between the contact head and the ultra-high viscosity oil in the oil chamber of the damper cylinder is increased, which is beneficial to improving the damping force.

[0010] Preferably, the contact head further includes a column head and multiple contact rods. The multiple contact rods are uniformly installed on the column head. The column head is installed at one end of the force application rod. The column head is located in the oil chamber of the damper cylinder, and the multiple contact rods do not contact all the inner walls of the damper cylinder; the contact area between the multiple contact rods and the ultra-high viscosity oil in the oil chamber of the damper cylinder is large, which is beneficial to improving the damping force. By providing the column head, it is convenient for installation and disassembly.

[0011] Preferably, a polymer is added to the ultra-high viscosity oil to make the ultra-high viscosity oil form a non-Newtonian fluid; polymers such as polyethylene, polyacrylamide, polyvinyl chloride, nylon 6, PVS, celluloid, etc. When a polymer is added to the ultra-high viscosity oil to form a non-Newtonian fluid, when the steel structure is violently vibrated, the viscosity of the part of the non-Newtonian fluid in contact with the contact head will increase sharply instantaneously, thereby providing a greater resistance to the contact head and realizing an automatic change of the damping force. The practicability is good.

[0012] Preferably, the damper cylinder further includes a cover plate and a plurality of bolts. One end of the damper cylinder is provided with an assembly port which communicates with the oil chamber of the damper cylinder. The cover plate is hermetically installed on the assembly port of the damper cylinder through the plurality of bolts. A through hole is provided in the middle of the cover plate, and the through hole is the opening of the damper cylinder. The force application rod passes through the through hole of the cover plate and enters the oil chamber of the damper cylinder, and the force application rod does not contact the side wall of the through hole of the cover plate. By providing the cover plate and the plurality of bolts, the overall assembly and maintenance of the damper cylinder are facilitated.

[0013] Preferably, the sealing assembly includes a sliding sleeve, an outer sealing plate and an inner sealing plate. The sliding sleeve is slidably sleeved on the force application rod, and a wear-resistant sealing ring is provided between the sliding sleeve and the force application rod. The sliding sleeve does not contact the side wall of the through hole of the cover plate. The outer sealing plate and the inner sealing plate are both installed on the sliding sleeve. The outer sealing plate is on the outer side of the cover plate, and the inner sealing plate is located on the inner side of the cover plate. Wear-resistant sealing rings are provided between the outer sealing plate and the cover plate and between the inner sealing plate and the cover plate. The sliding sleeve slides along the force application rod, so that the contact head can move back and forth in the oil chamber of the damper cylinder. The outer sealing plate and the inner sealing plate slide relative to the cover plate, so that the contact head can move up, down, left and right in the oil chamber of the damper cylinder to achieve multi-directional damping effect. The sliding sleeve does not contact the through hole of the cover plate, so that the sliding sleeve, the outer sealing plate and the inner sealing plate can rotate relative to the damper cylinder following the force application rod, so that the contact head rotates in the oil chamber of the damper cylinder to achieve torsional damping effect. At the same time, the plurality of wear-resistant sealing rings can prevent the leakage of ultra-high viscosity oil.

[0014] Preferably, it further includes an expansion box and an expansion box cover. The expansion box is installed on the outer wall of the damper cylinder, and the expansion box communicates with the oil chamber of the damper cylinder. The expansion box cover is hermetically screwed on the upper port of the expansion box. Open the expansion box cover and fill the ultra-high viscosity oil into the oil chamber of the damper cylinder through the expansion box, and make the liquid level of the ultra-high viscosity oil enter the expansion box. The expansion box constitutes the expansion chamber of the damper cylinder. When heated, the ultra-high viscosity oil expands into the expansion box, and when cooled, the ultra-high viscosity oil in the expansion box is supplemented into the oil chamber of the damper cylinder to ensure that the oil chamber of the damper cylinder is filled with ultra-high viscosity oil.

[0015] Preferably, the elastic component includes a plurality of support plates and a plurality of springs. The plurality of support plates are installed on the second assembly plate, and the plurality of support plates are respectively opposite to the plurality of outer side walls of the damper cylinder. A plurality of springs are connected between the damper cylinder and the plurality of support plates and between the damper cylinder and the second assembly plate. The plurality of support plates and the plurality of springs elastically support the damper cylinder in multiple directions, and cooperate with the damping effect between the contact head and the damper cylinder to improve the damping effect.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: The first assembly plate and the second assembly plate are respectively connected to component A and component B of the node of the steel structure. When component A vibrates relative to component B, the force-applying rod and the contact head will stir the ultra-high viscosity oil in the oil chamber of the damping cylinder. The adhesion of the ultra-high viscosity oil forms a damping force on the contact head, so as to buffer and shock-absorb between the first assembly plate and the second assembly plate. Since the force-applying rod does not contact all the side walls of the opening of the damping cylinder, and the contact head does not contact all the inner walls of the damping cylinder, the contact head can move in multiple directions in the oil chamber of the damping cylinder, thus forming a damping effect in multiple directions. At the same time, the contact head can rotate in the damping cylinder, thus forming a damping effect on torsion. The damping effect is good. Compared with the combination of multiple dampers, the structure is simple, the installation space required is small, and the limitation is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic cross-sectional structure diagram of the present invention;

[0018] Figure 2 is an isometric structure diagram of the present invention;

[0019] Figure 3 is a left isometric structure diagram of the present invention;

[0020] Figure 4 is an exploded structure diagram of the sealing assembly and other structures of the present invention;

[0021] Figure 5 is a structure diagram of the second assembly plate and the elastic component and other structures;

[0022] Figure 6 is a structure diagram of the force-applying rod, the column head and the contact rod and other structures;

[0023] Reference numerals in the drawings: 1, the first assembly plate; 2, the second assembly plate; 3, the force-applying rod; 4, the contact head; 5, the damping cylinder; 6, the column head; 7, the contact rod; 8, the cover plate; 9, the bolt; 10, the sliding sleeve; 11, the outer sealing plate; 12, the inner sealing plate; 13, the expansion box; 14, the expansion box cover; 15, the support plate; 16, the spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0025] Embodiment 1

[0026] As Figures 1 to 5As shown in the figure, a prefabricable damper applicable to steel structures includes a first assembly plate 1 and a second assembly plate 2. The first assembly plate 1 is connected to component A at the node of the steel structure, and the second assembly plate 2 is connected to component B at the node of the steel structure. It also includes a force-applying rod 3, a contact head 4, and a damper cylinder 5. One end of the force-applying rod 3 is connected to the first assembly plate 1, and a contact head 4 is installed at the other end of the force-applying rod 3. The damper cylinder 5 is installed on the second assembly plate 2 through an elastic component. An oil chamber and an opening communicating with the oil chamber are provided in the damper cylinder 5. The oil chamber is filled with ultra-high viscosity oil. The force-applying rod 3 passes through the opening of the damper cylinder 5 to make the contact head 4 extend into the oil chamber of the damper cylinder 5. The force-applying rod 3 does not contact all the side walls of the opening of the damper cylinder 5, and the contact head 4 does not contact all the inner walls of the damper cylinder 5. The contact head 4 contacts the ultra-high viscosity oil. A sealing component is provided between the force-applying rod 3 and the opening of the damper cylinder 5. Multiple fin plates are provided on the outer surface of the contact head 4, and the fin plates do not contact all the inner walls of the damper cylinder 5. The damper cylinder 5 also includes a cover plate 8 and multiple bolts 9. An assembly port is provided at one end of the damper cylinder 5, and the assembly port communicates with the oil chamber of the damper cylinder 5. The cover plate 8 is hermetically installed on the assembly port of the damper cylinder 5 through multiple bolts 9. A through hole is provided in the middle of the cover plate 8, and the through hole is the opening of the damper cylinder 5. The force-applying rod 3 passes through the through hole of the cover plate 8 and enters the oil chamber of the damper cylinder 5. The force-applying rod 3 does not contact the side wall of the through hole of the cover plate 8. The sealing component includes a sliding sleeve 10, an outer sealing plate 11, and an inner sealing plate 12. The sliding sleeve 10 is slidably sleeved on the force-applying rod 3, and a wear-resistant sealing ring is provided between the sliding sleeve 10 and the force-applying rod 3. The sliding sleeve 10 does not contact the side wall of the through hole of the cover plate 8. The outer sealing plate 11 and the inner sealing plate 12 are both installed on the sliding sleeve 10. The outer sealing plate 11 is on the outside of the cover plate 8, and the inner sealing plate 12 is located inside the cover plate 8. A wear-resistant sealing ring is provided between the outer sealing plate 11 and the cover plate 8, and a wear-resistant sealing ring is provided between the inner sealing plate 12 and the cover plate 8. The elastic component includes multiple support plates 15 and multiple springs 16. The multiple support plates 15 are installed on the second assembly plate 2, and the multiple support plates 15 are respectively opposite to the multiple outer side walls of the damper cylinder 5. Multiple springs 16 are connected between the damper cylinder 5 and the multiple support plates 15 and between the damper cylinder 5 and the second assembly plate 2.

[0027] The assembly plate one 1 and the assembly plate two 2 are respectively connected to the component A and the component B of the node of the steel structure. When the component A vibrates relative to the component B, the force application rod 3 and the contact head 4 will stir the ultra-high viscosity oil in the oil chamber of the damping cylinder 5. The adhesion of the ultra-high viscosity oil forms a damping force on the contact head 4. By arranging multiple wing plates horizontally or vertically, the contact area between the contact head 4 and the ultra-high viscosity oil in the oil chamber of the damping cylinder 5 is increased, which is beneficial to improving the damping force, so as to buffer and shock-absorb between the assembly plate one 1 and the assembly plate two 2. Since the force application rod 3 does not contact all the side walls of the opening of the damping cylinder 5, and the contact head 4 does not contact all the inner walls of the damping cylinder 5, the sliding sleeve 10 slides along the force application rod 3, so that the contact head 4 can move back and forth in the oil chamber of the damping cylinder 5. The outer sealing plate 11 and the inner sealing plate 12 slide relative to the cover plate 8, so that the contact head 4 can move up, down, left and right in the oil chamber of the damping cylinder 5, so that the contact head 4 can move in multiple directions in the oil chamber of the damping cylinder 5, thus forming a damping effect in multiple directions. At the same time, the sliding sleeve 10 does not contact the through hole of the cover plate 8, so that the sliding sleeve 10, the outer sealing plate 11 and the inner sealing plate 12 can rotate relative to the damping cylinder 5 following the force application rod 3, so that the contact head 4 rotates in the oil chamber of the damping cylinder 5, thus forming a damping effect on torsion. The damping effect is good. Compared with the combination of multiple dampers, the structure is simple, the installation space required is small, the limitation is small. By setting the cover plate 8 and multiple bolts 9, the overall assembly and maintenance of the damping cylinder 5 are convenient. At the same time, multiple wear-resistant sealing rings can prevent the leakage of ultra-high viscosity oil. Multiple support plates 15 and multiple springs 16 elastically support the damping cylinder 5 in multiple directions, and cooperate with the damping effect between the contact head 4 and the damping cylinder 5 to improve the shock-absorbing effect.

[0028] Embodiment 2

[0029] Such as Figure 1 、 Figure 2 、 Figure 3 and Figure 6As shown in the figure, a prefabricable damper applicable to steel structures includes a first assembly plate 1 and a second assembly plate 2. The first assembly plate 1 is connected to component A at the node of the steel structure, and the second assembly plate 2 is connected to component B at the node of the steel structure. It also includes a force application rod 3, a contact head 4, and a damper cylinder 5. One end of the force application rod 3 is connected to the first assembly plate 1, and a contact head 4 is installed at the other end of the force application rod 3. The damper cylinder 5 is installed on the second assembly plate 2 through an elastic component. An oil chamber and an opening communicating with the oil chamber are provided in the damper cylinder 5. The oil chamber is filled with a super-high viscosity oil. The force application rod 3 passes through the opening of the damper cylinder 5 to make the contact head 4 extend into the oil chamber of the damper cylinder 5. The force application rod 3 does not contact all the side walls of the opening of the damper cylinder 5, and the contact head 4 does not contact all the inner walls of the damper cylinder 5. The contact head 4 contacts the super-high viscosity oil. A sealing component is provided between the force application rod 3 and the opening of the damper cylinder 5. The contact head 4 further includes a column head 6 and a plurality of contact rods 7. The plurality of contact rods 7 are evenly installed on the column head 6. The column head 6 is installed at one end of the force application rod 3. The column head 6 is located in the oil chamber of the damper cylinder 5. The plurality of contact rods 7 do not contact all the inner walls of the damper cylinder 5. A polymer is added to the super-high viscosity oil to make the super-high viscosity oil form a non-Newtonian fluid. It also includes an expansion box 13 and an expansion box cover 14. The expansion box 13 is installed on the outer wall of the damper cylinder 5. The expansion box 13 communicates with the oil chamber of the damper cylinder 5. The expansion box cover 14 is hermetically screwed on the upper port of the expansion box 13.

[0030] Open the expansion box cover 14 and pour the super-high viscosity oil into the oil chamber of the damper cylinder 5 through the expansion box 13, and make the liquid level of the super-high viscosity oil enter the expansion box 13. The expansion box 13 constitutes the expansion chamber of the damper cylinder 5. When heated, the super-high viscosity oil expands into the expansion box 13. When cooled, the super-high viscosity oil in the expansion box 13 is supplemented into the oil chamber of the damper cylinder 5 to ensure that the oil chamber of the damper cylinder 5 is filled with the super-high viscosity oil. Polymers such as polyethylene, polyacrylamide, polyvinyl chloride, nylon 6, PVS, and celluloid are added to the super-high viscosity oil to form a non-Newtonian fluid. The contact area between the plurality of contact rods 7 and the non-Newtonian fluid in the oil chamber of the damper cylinder 5 is large, which is beneficial to improving the damping force. By setting the column head 6, it is convenient for installation and disassembly. When the steel structure is violently shaken, the viscosity of the part of the non-Newtonian fluid in contact with the contact rod 7 will increase rapidly instantaneously, thereby providing a greater resistance to the column head 6 and the contact rod 7, realizing the automatic change of the damping force, and having good practicability.

[0031] Such as Figures 1 to 6As shown in the figure, a detachable damper applicable to steel structures according to the present invention, when in operation, first, the assembly plate 1 and the assembly plate 2 are respectively connected to the component A and the component B of the node of the steel structure. Then, when the component A vibrates relative to the component B, the force-applying rod 3 drives the contact head 4 to move in multiple directions in the oil chamber of the damper cylinder 5. The contact head 4 stirs the ultra-high viscosity oil in the oil chamber of the damper cylinder 5. Then, the adhesion of the ultra-high viscosity oil forms a damping effect in multiple directions on the contact head 4, and cooperates with the elastic force of multiple springs 16 to buffer and shock-absorb the assembly plate 1 and the assembly plate 2. At the same time, the contact head 4 rotates in the damper cylinder 5 to form a damping effect on the torsion of the component A and the component B.

[0032] The main functions achieved by the present invention are as follows:

[0033] 1. It has a damping effect in multiple directions;

[0034] 2. It has a damping effect on torsion;

[0035] 3. The structure is simple, requires a small installation space, and has few limitations;

[0036] 4. The damping force can automatically change, and it has strong adaptability.

[0037] For a detachable damper applicable to steel structures according to the present invention, its installation method, connection method or setting method are all common mechanical methods, and any implementation that can achieve its beneficial effects can be carried out; the ultra-high viscosity oil, polymer, wear-resistant sealing ring, bolt 9, and spring 16 of a detachable damper applicable to steel structures according to the present invention are purchased on the market. Those skilled in the art only need to install and operate according to the attached instruction manual, and do not require creative labor from those skilled in the art.

[0038] All technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A prefabricable damper applicable to steel structures, comprising a first assembly plate (1) and a second assembly plate (2). The first assembly plate (1) is connected to component A at the node of the steel structure, and the second assembly plate (2) is connected to component B at the node of the steel structure. It is characterized in that, It further includes a force application rod (3), a contact head (4) and a damping cylinder (5). One end of the force application rod (3) is connected to the first assembly plate (1), and a contact head (4) is installed at the other end of the force application rod (3). The damping cylinder (5) is installed on the second assembly plate (2) through an elastic component. An oil chamber and an opening communicating with the oil chamber are provided in the damping cylinder (5). The oil chamber is filled with ultra-high viscosity oil. The force application rod (3) passes through the opening of the damping cylinder (5) to make the contact head (4) extend into the oil chamber of the damping cylinder (5). The force application rod (3) does not contact all the side walls of the opening of the damping cylinder (5), and the contact head (4) does not contact all the inner walls of the damping cylinder (5). The contact head (4) contacts the ultra-high viscosity oil. A sealing component is provided between the force application rod (3) and the opening of the damping cylinder (5); The damping cylinder (5) further includes a cover plate (8) and a plurality of bolts (9). An assembly port is provided at one end of the damping cylinder (5), and the assembly port communicates with the oil chamber of the damping cylinder (5). The cover plate (8) is hermetically installed on the assembly port of the damping cylinder (5) through a plurality of bolts (9). A through hole is provided in the middle of the cover plate (8), and the through hole is the opening of the damping cylinder (5). The force application rod (3) passes through the through hole of the cover plate (8) and enters the oil chamber of the damping cylinder (5). The force application rod (3) does not contact the side wall of the through hole of the cover plate (8); The sealing component includes a sliding sleeve (10), an outer sealing plate (11) and an inner sealing plate (12). The sliding sleeve (10) is slidably sleeved on the force application rod (3). A wear-resistant sealing ring is provided between the sliding sleeve (10) and the force application rod (3). The sliding sleeve (10) does not contact the side wall of the through hole of the cover plate (8). The outer sealing plate (11) and the inner sealing plate (12) are both installed on the sliding sleeve (10). The outer sealing plate (11) is on the outside of the cover plate (8), and the inner sealing plate (12) is located inside the cover plate (8). A wear-resistant sealing ring is provided between the outer sealing plate (11) and the cover plate (8), and a wear-resistant sealing ring is provided between the inner sealing plate (12) and the cover plate (8); It further includes an expansion box (13) and an expansion box cover (14). The expansion box (13) is installed on the outer wall of the damping cylinder (5), and the expansion box (13) communicates with the oil chamber of the damping cylinder (5). The expansion box cover (14) is hermetically screwed on the upper port of the expansion box (13); The elastic component includes a plurality of support plates (15) and a plurality of springs (16). The plurality of support plates (15) are installed on the second assembly plate (2). The plurality of support plates (15) are respectively opposite to the plurality of outer side walls of the damping cylinder (5). A plurality of springs (16) are connected between the damping cylinder (5) and the plurality of support plates (15) and between the damping cylinder (5) and the second assembly plate (2).

2. The prefabricated damper applicable to steel structures according to claim 1, wherein, A plurality of fin plates are provided on the outer surface of the contact head (4), and the fin plates do not contact all the inner walls of the damping cylinder (5).

3. The prefabricated damper applicable to steel structures according to claim 1, characterized in that, The contact head (4) further includes a stud head (6) and a plurality of contact rods (7). The plurality of contact rods (7) are uniformly installed on the stud head (6). The stud head (6) is installed at one end of the force application rod (3). The stud head (6) is located in the oil chamber of the damping cylinder (5), and the plurality of contact rods (7) do not contact all the inner walls of the damping cylinder (5).

4. The prefabricated damper applicable to steel structures according to claim 1, wherein Add a polymer to the ultra-high viscosity oil to make the ultra-high viscosity oil form a non-Newtonian fluid.

Images