CN215717662U - Rotary self-resetting viscous energy dissipation support - Google Patents
Rotary self-resetting viscous energy dissipation support Download PDFInfo
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- CN215717662U CN215717662U CN202121930635.3U CN202121930635U CN215717662U CN 215717662 U CN215717662 U CN 215717662U CN 202121930635 U CN202121930635 U CN 202121930635U CN 215717662 U CN215717662 U CN 215717662U
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Abstract
The utility model discloses a rotary self-resetting viscous energy-consuming support.A guide rod is pushed by external force to move inwards to drive a piston to move axially when the support is under the action of pressure, and the guide rod is restored under the action of energy storage driving of a rotary self-resetting component after the external force disappears; when the whole supporting member is under the action of a pulling force, the guide rod is pulled by an external force to move outwards, the piston moves synchronously along with the guide rod, and the guide rod is reset by rotating the self-resetting component after the external force disappears; therefore, the supporting component can be guaranteed to stably and efficiently consume energy no matter under the action of pressing or pulling force, and the guide rod can restore to the original position under the action of the rotary self-resetting component. According to the utility model, through the property of the flat spiral spring, sufficient reset force can be provided to reduce the residual deformation of the structure, the problems of reduced energy consumption capability, incapability of ensuring the reliability and the like caused by environmental change and time influence on the traditional friction energy consumption are solved, and the self-reset capability and the energy consumption capability of the buckling-restrained brace are fully exerted.
Description
Technical Field
The utility model belongs to the field of energy dissipation and shock absorption of structural engineering, and particularly relates to a rotary self-resetting viscous energy dissipation support.
Background
The buckling restrained brace is one of shock attenuation measures which are widely applied at present, and has simple design parameters and lower manufacturing cost. The buckling-restrained brace component has the working principle that the steel generates elastic-plastic deformation to dissipate seismic energy, has stable energy consumption capacity when being pulled and pressed, and has efficient damping effect. The damping and energy-consuming device is mostly used in a newly built multi-storey or high-rise building or used in the reinforcing and reforming of an existing building. However, the ductility of the energy-consuming steel of the buckling restrained brace is limited, the rigidity of the steel after yielding can be greatly reduced, the structure generates large residual deformation under the action of an earthquake, the safe use of the structure is influenced, the whole structure is difficult to maintain and even can only be overturned for reconstruction, and a large amount of indirect economic loss is caused.
In order to reduce the residual deformation of the buckling restrained brace, researchers put forward a concept of a self-resetting energy dissipation brace, which consists of a self-resetting system, an energy dissipation system and a restraining connection system. At present, the research aiming at the self-resetting energy-consuming support is in a starting stage, the self-resetting of the device is mostly realized by high-strength steel strands or SMA materials, and energy consumption is carried out by the friction action of all parts in a component, wherein the high-strength steel strands are poor in axial deformation capacity and need to be connected in series, so that the internal structure of the support is complex, the requirement on the manufacturing precision of the axial component is high, and the assembly is difficult; SMA wires are expensive to manufacture and are not suitable for large-scale application in building structures. Therefore, the self-resetting energy dissipation support member proposed at present mostly has the problems of complex structure or high cost, and meanwhile, the roughness of the friction surface between each component in the member can be changed along with the repeated reciprocating deformation of the support, and the pre-pressure in the member can be lost along with the change of time and external environmental factors, so that the energy dissipation capability of the self-resetting support is reduced, and the reliability of the energy dissipation capability of the member is low.
The current self-resetting devices have some disadvantages: the steel strand has insufficient deformation capability, the shape memory alloy wire has high manufacturing cost and the like; in addition, the friction energy consumption is greatly influenced by time and external environmental factors. Therefore, research of a novel self-resetting energy dissipation support which has good self-resetting capability and stable and efficient energy dissipation capability and is not influenced by external environmental factors and time factors is an urgent problem to be solved in practical engineering application.
Disclosure of Invention
The utility model aims to overcome the defects and provide a rotary self-resetting viscous energy dissipation support, wherein the rotation of a flat spiral spring provides a resetting force to reduce the residual deformation of the support, so that the rotary self-resetting viscous energy dissipation support not only has good self-resetting capability, but also has stable and efficient energy dissipation capability.
In order to achieve the purpose, the utility model comprises a piston, wherein one end of the piston is connected with a guide rod, a piston rod at the other end of the piston is connected with a rotary self-resetting assembly, and the rotary self-resetting assembly is connected with the guide rod;
the rotary self-resetting assembly comprises a rotating device, an inner scroll spring and an outer scroll spring, wherein the rotating device, the inner scroll spring and the outer scroll spring are all arranged in an upper arc-shaped cover plate and a lower arc-shaped cover plate; the inner ring of the outer scroll spring is fixed with the outer side of a rotating cylinder on the rotating device, and the outer ring of the outer scroll spring is fixed on the inner sides of the upper arc-shaped cover plate and the lower arc-shaped cover plate.
The sealing cylinder is filled with viscous medium, the piston is arranged in the center of the interior of the sealing cylinder, the guide rod penetrates through the axial center of the sealing cylinder, the piston is fixedly connected with the guide rod, and the piston rod extends out of the sealing cylinder and then extends into the rotary self-resetting assembly.
The rotating device is arranged on the arc grooves of the lower arc-shaped cover plate and the upper arc-shaped cover plate, and the lower arc-shaped cover plate and the upper arc-shaped cover plate are fixedly connected with the sealing cylinder.
One end of the lower arc-shaped cover plate and one end of the upper arc-shaped cover plate are provided with circular cover plates, and the connecting guide rod is fixed on the circular cover plates.
The rotating device comprises a spiral groove cylinder, a positioning disc and a rotating cylinder;
the inner diameter of the spiral groove cylinder is larger than the diameter of the piston rod, the spiral groove cylinder is connected with one side of the positioning disc, the positioning disc is connected with the rotating steel cylinder, the rotating steel cylinder is a hollow steel pipe, and the diameter of the rotating steel cylinder is larger than that of the spiral groove cylinder.
The sealed cylinder comprises a hollow steel pipe, a circular end plate and a large-diameter circular end plate, the circular end plate and the large-diameter circular end plate are fixed at two ends of the hollow steel pipe respectively, and circular through holes are formed in the centers of the circular end plate and the large-diameter circular end plate.
The connecting guide rod is connected with the first connecting sleeve, and the extending end of the guide rod is connected with the second connecting sleeve through threads.
The piston rod is provided with a clamp nail which extends into the spiral groove of the spiral groove cylinder.
Compared with the prior art, when the self-resetting component is stressed by pressure, the guide rod is pushed by external force to move inwards to drive the piston to move axially, and after the external force disappears, the guide rod is restored to the original position under the energy storage driving action of the rotary self-resetting component; when the whole supporting member is under the action of a pulling force, the guide rod is pulled by an external force to move outwards, the piston moves synchronously along with the guide rod, and the guide rod is reset by rotating the self-resetting component after the external force disappears; therefore, the supporting component can be guaranteed to stably and efficiently consume energy no matter under the action of pressing or pulling force, and the guide rod can restore to the original position under the action of the rotary self-resetting component. According to the utility model, through the property of the flat spiral spring, sufficient and effective reset force can be provided to reduce the residual deformation of the structure, the problems that the energy consumption capability is reduced and the reliability cannot be ensured due to the influence of environmental change and time on the traditional friction energy consumption are solved, the self-reset capability and the energy consumption capability of the buckling-restrained brace are fully exerted, and the safety of the structure under the action of an earthquake and the like is further enhanced.
Furthermore, the self-resetting device is skillfully combined with a viscous energy consumption mechanism, energy consumption can be carried out by depending on a viscous medium, and the energy consumption capability of the device is improved.
When the guide rod is pushed by external force to move inwards, the rotating device rotates anticlockwise to drive the outer flat spiral spring to be tensioned and the inner flat spiral spring to be relaxed, and the outer flat spiral spring stores energy and provides restoring force for the guide rod to restore to the original position; when the guide rod is pulled by external force to move outwards, the rotating device rotates clockwise to drive the inner flat spiral spring to be tensioned and the outer flat spiral spring to be relaxed, and the inner flat spiral spring stores energy and provides restoring force for the guide rod to restore the original position; the flat spiral spring can generate a large deformation angle when being wound, and generates large energy in a small volume, so that the inner and outer spiral springs in the self-resetting assembly can provide enough resetting force for the support no matter the support is pressed or pulled to rotate. When the guide rod moves inwards and outwards, the axial stiff spring is compressed and stretched along with the guide rod, so that elastic reset force is provided, and the defect of initial reset force of the flat spiral spring is overcome; the later-stage reset force of the flat spiral spring is obviously improved, the reset effect is ensured, the circular constraint sleeve limits the motion direction of the guide rod, and the guide rod is protected from moving along the axial direction; in addition, friction is generated between the positioning disc of the rotating device and the upper and lower arc-shaped cover plates due to rotation, and certain energy consumption capability is achieved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an internal structural view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a top cross-sectional view of the present invention;
FIG. 5 is an elevational, cross-sectional view of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a diagram of the components of the turning gear in the rotary self-resetting assembly of the present invention;
FIG. 8 is an inner flat spiral spring of the rotary self-resetting assembly of the present invention;
FIG. 9 is a view of the outer flat spiral spring of the rotary self-resetting assembly of the present invention;
FIG. 10 is an axial stiff spring in the rotary self-resetting assembly of the present invention;
fig. 11 is a view of a sealing cylinder member in the viscous dissipation assembly of the present invention;
FIG. 12 is a schematic view of a coupling sleeve of the present invention;
FIG. 13 is a model of the restoring force of a rotating self-resetting viscous energy dissipating support of the present invention;
in the figure: 1. a guide bar; 1-1, staple bolts; 2. a piston; 3. sealing the cylinder; 3-1, hollow steel pipes; 3-2, round end plate; 3-3, large diameter round end plate; 4. an upper arc-shaped cover plate; 5, a lower arc-shaped cover plate; 6. a rotating device; 6-1, spiral groove cylinder; 6-2, positioning a disc; 6-3, rotating the cylinder; 7. an axial stiff spring; 8. an inner planar volute spring; 9. an outer planar volute spring; 10, a circular cover plate; 11. connecting the guide rod; 12-1, a first connecting sleeve; 12-2, a second connecting sleeve; 13. the sleeve is constrained.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but it should not be construed that the scope of the above-described subject matter is limited to the examples. Various substitutions and alterations can be made without departing from the technical idea of the utility model and the scope of the utility model is covered by the present invention according to the common technical knowledge and the conventional means in the field.
The energy-saving self-resetting energy-saving device comprises a viscous energy-consuming component, a rotating self-resetting component and connecting sleeve components at two ends.
Referring to fig. 1, the viscous energy consuming assembly comprises a guide rod 1, a piston 2 and a sealing cylinder 3; the piston 2 is positioned in the center of the inner part of the sealed cylinder 3, the guide rod 1 penetrates through the axial center of the sealed cylinder 3, and the piston 2 is fixedly connected with the guide rod 1; one end of the guide rod 1 extends out of the sealing cylinder 3, and the piston rod extends into the rotary self-resetting component.
Referring to fig. 1, 2 and 3, the rotary self-resetting assembly includes an upper arc cover plate 4, a lower arc cover plate 5, a rotating device 6, an axial stiff spring 7, an inner flat spiral spring 8, an outer flat spiral spring 9, a circular cover plate 10, a connecting guide rod 11 and a circular restraining sleeve 13.
The lower arc-shaped cover plate 5 is fixedly connected with a large-diameter circular end plate 3-3 in the viscous energy dissipation assembly, the rotating device 6 is inserted into the extension guide rod 1, a spiral groove 6-1 is formed in the rotating device, a staple bolt 1-1 is arranged on the guide rod 1, and when the guide rod 1 moves axially, the rotating device 6 is driven to rotate; the rotating device 6 is placed on the arc-shaped groove 5-1 of the lower arc-shaped cover plate 5; the connecting rod 11 is welded to the outside of the circular cover plate 10 and is associated with the first connecting sleeve 12-1.
Referring to fig. 7, the rotating means 6 includes a spiral groove cylinder 6-1, a positioning disk 6-2, and a rotating cylinder 6-3.
The spiral groove cylinder 6-1 is a thick-wall steel cylinder, the inner diameter of the steel cylinder is slightly larger than the diameter of the guide rod, the spiral groove cylinder 6-1 is welded with one side of the positioning disc 6-2, and the positioning disc 6-2 is welded with the rotating steel cylinder 6-3; the rotating steel cylinder 6-3 is a hollow steel pipe, the diameter of which is larger than that of the spiral groove cylinder 6-1 and is determined according to the diameters of the inner and outer spiral springs.
Referring to fig. 4, 5 and 6, the axial stiff spring 7 is placed along the direction of the piston rod and has one end fixed with the piston rod and the other end fixed on the circular cover plate 10; the circular restraining sleeve 13 is arranged at the periphery of the stiff spring 7 and fixed with the circular cover plate 10; the inner ring of the inner scroll spring 8 is fixed on the circular restraining sleeve 13, and the outer ring is fixed with the inner side of the rotating cylinder 6-3 on the rotating device 6; the inner ring of the outer volute spiral spring 9 is fixed with the outer side of a rotating cylinder 6-3 on the rotating device 6, and the outer ring is fixed on the inner side of the lower arc-shaped cover plate 5; the inner spiral spring 8 and the outer spiral spring 9 are driven to tighten or contract along with the movement of the rotating cylinder 6-3 to generate a reset force; the upper arc-shaped cover plate 4 and the lower arc-shaped cover plate 5 are connected and closed to form a whole.
Referring to fig. 12, the first connecting sleeve 12-1 and the second connecting sleeve 12-2 are cylinders, one end of which is welded with two arc-shaped rectangular steel plates with a certain distance therebetween, and the rectangular steel plates are provided with circular holes for facilitating bolt connection and replacement with structures; the other end is internally provided with a bolt hole to be connected with the guide rod 1.
Referring to fig. 11, the sealed cylinder 3 is formed by welding a hollow steel pipe 3-1, a circular end plate 3-2 and a large-diameter circular end plate 3-3, a circular through hole 3-4 is formed in the center of the circular end plate 3-2 and the large-diameter circular end plate 3-3, and the diameter of the circular end plate 3-2 is the same as the inner diameter of the hollow steel pipe 3-1; the radius of the 3-3 large-diameter circular end plate is larger than the outer diameter of the 3-1 hollow steel pipe by 100 mm; the diameters of central round holes 3-4 of the round end plate 3-2 and the large-diameter round end plate 3-3 are slightly larger than the diameter of the guide rod 1, and sealing materials are filled in gaps of the round end plates.
The radius of the piston 2 is smaller than the inner radius of the sealing cylinder 3 by 2-3 mm, the middle of the guide rod 1 is fixed, viscous media such as silicon oil are injected into the sealing cylinder 3, the piston 2 is driven to move through the guide pipe 1, and energy consumption is carried out on damping media through friction of gaps.
The thread carved on the overhanging end of the guide rod 1 is mechanically connected with a second connecting sleeve 12-2, and the part of the guide rod 1 extending into the rotary self-resetting component is provided with a staple 1-1, so that when the guide rod 1 moves axially, the staple 1-1 moves along a spiral groove 6-1 in the rotating device 6, and the rotating device 6 rotates.
The upper arc-shaped cover plate 4 and the lower arc-shaped cover plate 5 are 180-degree arc plates with the same radius, the diameter of the upper arc-shaped cover plate is about 250mm, and arc-shaped grooves 5-1 are formed in the same section of the positioning disc 6-2; the diameter of the positioning disc 6-2 is slightly larger than the inner diameter of the upper arc-shaped cover plate and the lower arc-shaped cover plate; the lower arc-shaped cover plate 5 is firstly connected and fixed with the large-diameter circular end plate 3-3, and after the internal installation is finished, the upper arc-shaped cover plate 4 and the lower arc-shaped cover plate 5 are folded.
The working process of the utility model is as follows:
when the guide rod 1 is under the action of pressure, the guide rod 1 moves inwards to drive the piston 2 to move axially, and the piston 2 performs buffering and energy consumption on the shearing and extrusion action of the damping fluid and the flowing of the damping fluid, so that the rotating device 6 rotates anticlockwise to drive the outer flat spiral spring 9 to be tensioned, meanwhile, the inner flat spiral spring 8 is relaxed, and the axial stiff spring 7 compresses;
when the external force applied to the guide rod 1 disappears, the guide rod 1 restores to the original position under the combined action of the tensioned outer plane spiral spring 9 and the compressed axial stiff spring 7;
when the guide rod 1 is under the action of a pulling force, the guide rod 1 moves outwards, the piston 2 moves synchronously along with the guide rod 1, and the rotating device 6 rotates clockwise to drive the inner flat spiral spring 8 to be tensioned through the shearing and extrusion action of the damping fluid and the flowing of the damping fluid, and meanwhile, the outer flat spiral spring 9 is loosened and the axial stiff spring 7 is stretched;
when the external force applied to the guide rod 1 disappears, the guide rod 1 is reset under the combined action of the tensioned inner flat spiral spring 8 and the stretched axial stiff spring 7.
The implementation process of the installation of the rotary self-resetting viscous energy dissipation support is as follows:
1) fixing a piston 2 in the middle of a guide rod 1, penetrating a hollow steel tube 3-1, and installing a round end plate 3-2 and a large-diameter round end plate 3-3 to be welded with the hollow steel tube 3-1 to form a sealed cylinder 3;
2) fixing a lower arc-shaped cover plate 5, a large-diameter round end plate 3-3 and an axial stiff spring 7 with a piston rod;
3) fixing the inner flat spiral spring 8 and the circular constraint sleeve 13, fixing the outer ring of the inner flat spiral spring 8 and the inner side of the rotating cylinder 6-3, and fixing the outer side of the rotating cylinder 6-3 and the inner ring of the outer flat spiral spring 9 by welding or bolt connection;
4) the rotating device 6 penetrates into the piston rod, and the staple bolt 1-1 moves in the spiral groove cylinder 6-1;
5) the axial stiff spring 7 and the circular constraint sleeve 13 are welded and fixed with the circular cover plate 10, then the circular cover plate 10 is fixed with the lower arc-shaped cover plate 5, and the connecting guide rod 11 is welded and fixed on the outer side of the circular cover plate 10;
6) the upper arc-shaped cover plate 4 and the lower arc-shaped cover plate 5 are folded and fixed, then a first connecting sleeve 12-1 and a second connecting sleeve 12-2 are arranged on the connecting guide rod 11 and the guide rod 1 at the two sides of the support, and the upper arc-shaped cover plate and the lower arc-shaped cover plate are connected with the main body structure after being screwed down.
Claims (8)
1. A rotary self-resetting viscous energy-consuming support is characterized by comprising a piston (2), wherein one end of the piston (2) is connected with a guide rod (1), a piston rod at the other end of the piston is connected with a rotary self-resetting component, and the rotary self-resetting component is connected with a connecting guide rod (11);
the rotary self-resetting assembly comprises a rotating device (6), an inner scroll spring (8) and an outer scroll spring (9), the rotating device (6), the inner scroll spring (8) and the outer scroll spring (9) are all arranged in an upper arc-shaped cover plate (4) and a lower arc-shaped cover plate (5), a piston rod is inserted into the rotating device (6), an axial stiff spring (7) is arranged at the end part of the piston rod, a circular constraint sleeve (13) is wrapped outside the axial stiff spring (7), the inner ring of the inner scroll spring (8) is fixed on the circular constraint sleeve (13), and the outer ring of the inner scroll spring (8) is fixed with the inner side of a rotating cylinder on the rotating device (6); the inner ring of the outer scroll spring (9) is fixed with the outer side of a rotating cylinder on the rotating device (6), and the outer ring of the outer scroll spring (9) is fixed on the inner sides of the upper arc-shaped cover plate (4) and the lower arc-shaped cover plate (5).
2. A rotary self-resetting viscous energy-consuming support according to claim 1, characterized in that the sealing cylinder (3) is filled with viscous medium, the piston (2) is arranged at the inner center of the sealing cylinder (3), the guide rod (1) passes through the axial center of the sealing cylinder (3), the piston (2) is fixedly connected with the guide rod (1), and the piston rod extends into the rotary self-resetting component after extending out of the sealing cylinder (3).
3. A rotary self-resetting viscous energy-consuming support according to claim 1, characterized in that the rotating device (6) is arranged on the arc-shaped grooves of the lower arc-shaped cover plate (5) and the upper arc-shaped cover plate (4), and the lower arc-shaped cover plate (5) and the upper arc-shaped cover plate (4) are fixedly connected with the sealing cylinder (3).
4. A rotary self-resetting viscous energy-consuming support according to claim 1, characterized in that one end of the lower arc-shaped cover plate (5) and one end of the upper arc-shaped cover plate (4) are provided with a circular cover plate (10), and the connecting guide rod (11) is fixed on the circular cover plate (10).
5. A rotary self-resetting viscous energy-consuming support according to claim 1, characterized in that the rotating means (6) comprises a spiral groove cylinder (6-1), a positioning disc (6-2) and a rotating cylinder (6-3);
the inner diameter of the spiral groove cylinder (6-1) is larger than the diameter of the piston rod, the spiral groove cylinder (6-1) is connected with one side of the positioning disc (6-2), the positioning disc (6-2) is connected with the rotating steel cylinder (6-3), the rotating steel cylinder (6-3) is a hollow steel pipe, and the diameter of the rotating steel cylinder (6-3) is larger than that of the spiral groove cylinder (6-1).
6. The rotary self-resetting viscous energy-consuming support according to claim 1, characterized in that the sealing cylinder (3) comprises a hollow steel pipe (3-1), a round end plate (3-2) and a large-diameter round end plate (3-3), the round end plate (3-2) and the large-diameter round end plate (3-3) are respectively fixed at two ends of the hollow steel pipe (3-1), and round through holes are respectively formed in the centers of the round end plate (3-2) and the large-diameter round end plate (3-3).
7. A rotary self-resetting viscous energy-consuming support according to claim 1, characterized in that the connecting rod (11) is connected to the first connecting sleeve (12-1), and the extending end of the connecting rod (1) is connected to the second connecting sleeve (12-2) by screw thread.
8. A rotary self-resetting viscous energy-consuming support according to claim 1, characterized in that the piston rod is provided with a staple (1-1), the staple (1-1) extending into the spiral groove of the spiral groove cylinder (6-1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121930635.3U CN215717662U (en) | 2021-08-17 | 2021-08-17 | Rotary self-resetting viscous energy dissipation support |
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| CN202121930635.3U CN215717662U (en) | 2021-08-17 | 2021-08-17 | Rotary self-resetting viscous energy dissipation support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341677A (en) * | 2022-09-02 | 2022-11-15 | 扬州大学 | Prestress-free self-resetting energy-consumption inhaul cable support |
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2021
- 2021-08-17 CN CN202121930635.3U patent/CN215717662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341677A (en) * | 2022-09-02 | 2022-11-15 | 扬州大学 | Prestress-free self-resetting energy-consumption inhaul cable support |
| CN115341677B (en) * | 2022-09-02 | 2023-08-04 | 扬州大学 | Prestressed self-resetting energy-dissipation inhaul cable support |
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