CN221003593U - Reverse stiffness self-resetting rotary friction damper - Google Patents
Reverse stiffness self-resetting rotary friction damper Download PDFInfo
- Publication number
- CN221003593U CN221003593U CN202322548343.9U CN202322548343U CN221003593U CN 221003593 U CN221003593 U CN 221003593U CN 202322548343 U CN202322548343 U CN 202322548343U CN 221003593 U CN221003593 U CN 221003593U
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- lower fixing
- main body
- fixing disc
- friction damper
- friction
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- 238000007789 sealing Methods 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims 2
- 238000013016 damping Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000010030 laminating Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a reverse stiffness self-resetting rotary friction damper, and belongs to the field of dampers. In particular to a reverse stiffness friction damper with a spiral structure arranged inside and friction through rotary fit. Comprising the following steps: the lower fixed subassembly, correspond the grafting and arrange the upper subassembly in the lower fixed subassembly in, be provided with spiral guide structure in the middle of upper subassembly and the lower fixed subassembly, and the laminating corresponds the formation friction setting, upper subassembly and lower fixed subassembly middle part is provided with interior supporting spring, and fixed subassembly lateral wall is provided with the breather valve down, forms air spring, through flexible setting, and inside corresponds the helicitic texture that sets up, cooperates the friction strip, carries out the corresponding damping structure that is the friction, has carried out the reverse rigidity.
Description
Technical Field
The utility model provides a reverse stiffness self-resetting rotary friction damper, and belongs to the field of dampers. In particular to a reverse stiffness friction damper with a spiral structure arranged inside and friction through rotary fit.
Background
At present, the friction damper cannot adapt to the working environment of the structure under the action of earthquakes with different intensities and has larger residual displacement, such as the existing rotary friction damper, the invention dissipates energy through the relative sliding of the friction plates arranged in the grooves, but after the friction damper is subjected to the action of external load, the non-recoverable plastic deformation can be generated due to the fact that a recovery device is not arranged in the damper, and the whole damper needs to be replaced after the earthquake, so that the requirements of self-resetting and high energy consumption are provided for the friction damper based on the concept of the recoverable function, and the disc springs and unbonded prestress ribs are mainly used in the self-resetting device at present, but the two devices have certain defects.
The publication No. CN116201410A discloses a self-resetting rotary friction damper and a method, the self-resetting rotary friction damper comprises a pin shaft, a first rotary plate and a second rotary plate are symmetrically arranged on two sides of the pin shaft, a first coupling plate and a second coupling plate are symmetrically arranged along the axial direction of the pin shaft, one side of the first coupling plate and one side of the second coupling plate, which are provided with friction surfaces, are connected with the friction surfaces of the rotary plates and are connected with the rotary plates in series, the coupling plates are connected with the rotary plates through pretightening force bolts, and the damping device with a single structure is used for truly regulating and controlling the internal air pressure.
Disclosure of utility model
The utility model provides a reverse stiffness self-resetting rotary friction damper, and provides a damper which is arranged in a rotary mode to form corresponding friction. Simple structure and convenient use.
The utility model discloses a reverse stiffness self-resetting rotary friction damper, which is realized by the following steps: the lower fixed subassembly, correspond the grafting and arrange the upper subassembly in the lower fixed subassembly in, be provided with spiral guide structure in the middle of upper subassembly and the lower fixed subassembly, and the laminating corresponds the formation friction setting, upper subassembly and lower fixed subassembly middle part are provided with interior supporting spring, and lower fixed subassembly lateral wall is provided with the breather valve, forms air spring.
Preferably: the lower fixing assembly comprises a lower fixing disc and a main body pipe, the lower fixing disc is of a disc-shaped structure, a guide sleeve is arranged in the middle of the lower fixing disc, a sealing gasket is arranged at the bottom of the lower fixing disc, the sealing gasket is fixedly embedded on the lower fixing disc, and the main body pipe is arranged on the lower fixing disc in a threaded connection mode and correspondingly sleeved on the outer side of the guide sleeve;
Wherein, be provided with the sealing ring between lower fixed disk and the main part pipe.
Preferably: the inner arm of the main body pipe is provided with a spiral groove, the side wall of the main body pipe is provided with a breather valve, and the upper end of the main body pipe is internally provided with a guide sleeve;
The breather valve comprises an outer fixed sleeve, a limiting ring, a valve plate and a reset spring, wherein the outer fixed sleeve is in threaded connection with the side wall of the main body pipe, an air inlet hole is formed in the outer fixed sleeve, the limiting ring is in threaded connection with the outer fixed sleeve, the valve plate is arranged between the outer fixed sleeve and the limiting ring, the reset spring is correspondingly sleeved on the valve plate and is abutted against the limiting ring, and a rod body corresponding to the middle of the limiting ring is arranged on the valve plate.
Preferably: the sealing ring is formed by bending steel bars, and the section of the sealing ring is of a C-shaped structure.
Preferably: the upper assembly comprises an inner cylinder, a piston sleeve and an upper fixing disc, the inner cylinder is inserted and arranged in the main body pipe, the piston sleeve is arranged at the end part of the inner cylinder and is convenient to be correspondingly attached to the main body pipe, and the outer side wall of the piston sleeve is provided with a guide sliding block corresponding to the spiral groove;
wherein, the guide sliding block is provided with the friction strip with the helicla flute faying surface.
Preferably: the upper fixing plate is fixedly arranged at the end part of the inner column body through a fastening screw, and flange holes for installation and fixation are formed in the upper fixing plate and the lower fixing plate.
According to the anti-rigidity self-resetting rotary friction damper, through telescopic arrangement, the spiral structure which is correspondingly arranged in the damper is matched with the friction strip to perform corresponding friction, and the anti-rigidity damping structure is performed.
Drawings
FIG. 1 is a perspective view of a self-resetting rotational friction damper of the present utility model with anti-stiffness.
FIG. 2 is a schematic diagram of the structure of the present utility model.
Fig. 3 is a schematic structural view of the breather valve of the present utility model.
Fig. 4 is a schematic view of the structure of the selection guide assembly of the present utility model.
FIG. 5 is a schematic structural view of a seal ring of the present utility model.
In the accompanying drawings:
1. A lower fixing plate; 2. a main body tube; 3. an inner cylinder; 4. an upper fixing plate; 5. an inner support spring; 6. a piston sleeve; 7. a fastening screw; 8. a respiratory valve; 9. a seal ring; 11. a sealing gasket; 21. a spiral groove; 61. a guide slide block; 81. an outer fixing sleeve; 82. a limiting ring; 83. a valve plate; 84. and a return spring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The utility model discloses a reverse stiffness self-resetting rotary friction damper, which is realized by the following steps: the lower fixed subassembly, correspond the grafting and arrange the upper subassembly in the lower fixed subassembly in, be provided with spiral guide structure in the middle of upper subassembly and the lower fixed subassembly, and the laminating corresponds the formation friction setting, upper subassembly and lower fixed subassembly middle part are provided with interior supporting spring 5, and lower fixed subassembly lateral wall is provided with breather valve 8, forms air spring.
In an alternative embodiment: the lower fixing assembly comprises a lower fixing disc 1 and a main body tube 2, wherein the lower fixing disc 1 is of a disc-shaped structure, a guide sleeve is arranged in the middle of the lower fixing disc, a sealing gasket 11 is arranged at the bottom of the lower fixing disc 1, the sealing gasket 11 is fixedly embedded on the lower fixing disc 1, and the main body tube 2 is screwed on the lower fixing disc 1 and correspondingly sleeved on the outer side of the guide sleeve;
wherein a sealing ring 9 is arranged between the lower fixing disk 1 and the main body pipe 2.
The lower fixing plate 1 and the lower fixing plate 4 are used for installation and fixation, and the upper assembly is relatively compressed by the lower fixing assembly and matched with friction arrangement formed by rotation to form damping.
In an alternative embodiment: the inner arm of the main body pipe 2 is provided with a spiral groove 21, the side wall of the main body pipe 2 is provided with a breather valve 8, and the upper end of the main body pipe 2 is internally provided with a guide sleeve;
The breather valve 8 comprises an outer fixed sleeve 81, a limiting ring 82, a valve plate 83 and a reset spring 84, wherein the outer fixed sleeve 81 is in threaded connection with the side wall of the main body pipe 2, an air inlet is formed in the outer fixed sleeve 81, the limiting ring 82 is in threaded connection with the outer fixed sleeve 81, the valve plate 83 is arranged between the outer fixed sleeve 81 and the limiting ring 82, the reset spring 84 is correspondingly sleeved on the valve plate 83 and is abutted against the limiting ring 82, and a rod body corresponding to the middle of the limiting ring 82 is arranged on the valve plate 83.
It should be noted that, the compression of the internal gas is performed through the compression of the upper assembly and the lower fixing assembly, and then the gas is compressed and discharged through the breather valve 8, and when the compression amount is large, the gas is rapidly discharged through the breather valve 8, and then the valve plate 83 is rapidly moved, and the stop collar 82 is blocked, so that the support is formed.
In an alternative embodiment: the sealing ring 9 is formed by bending steel bars, and the section of the sealing ring is of a C-shaped structure.
The sealing is performed by the C-shaped seal ring 9, and the sealing performance of the connection position is improved.
In an alternative embodiment: the upper assembly comprises an inner column body 3, a piston sleeve 6 and an upper fixing disc 4, wherein the inner column body 3 is inserted and arranged in the main body pipe 2, the piston sleeve 6 is arranged at the end part of the inner column body 3 and is convenient to be correspondingly attached to the main body pipe 2, and a guide sliding block 61 corresponding to the spiral groove 21 is arranged on the outer side wall of the piston sleeve 6;
Wherein, the contact surface of the guide slide block 61 and the spiral groove 21 is provided with a friction strip.
The friction damping is formed by the deflection of the friction strip inner body 3 in the body tube 2.
In an alternative embodiment: the upper fixing plate 4 is fixedly arranged at the end part of the inner column body 3 through a fastening screw 7, and flange holes for installation and fixation are formed in the upper fixing plate 4 and the lower fixing plate 1.
When the upper fixing plate 4 is pressed down, the inner cylinder 3 correspondingly stretches and contracts along the main body pipe 2, meanwhile, the inner supporting spring 5 is compressed, rigidity is adjusted through the gas compression speed, and rotary friction is carried out by matching with the spiral guiding on the inner side, so that the purpose of damping is achieved.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (5)
1. A counter-stiffness self-resetting rotational friction damper comprising: the lower fixing assembly and the upper assembly correspondingly inserted in the lower fixing assembly are characterized in that a spiral guide structure is arranged between the upper assembly and the lower fixing assembly, friction arrangement is formed by the joint surface, an inner supporting spring (5) is arranged in the middle of the upper assembly and the lower fixing assembly, and a breather valve (8) is arranged on the side wall of the lower fixing assembly to form an air spring;
The lower fixing assembly comprises a lower fixing disc (1) and a main body tube (2), wherein the lower fixing disc (1) is of a disc-shaped structure, a guide sleeve is arranged in the middle of the lower fixing disc, a sealing gasket (11) is arranged at the bottom of the lower fixing disc (1), the sealing gasket (11) is fixedly embedded on the lower fixing disc (1), and the main body tube (2) is connected to the lower fixing disc (1) in a threaded manner and correspondingly sleeved on the outer side of the guide sleeve;
wherein, be provided with sealing ring (9) between lower fixed disk (1) and main part pipe (2).
2. The anti-stiffness self-resetting rotational friction damper of claim 1, further comprising: the inner arm of the main body pipe (2) is provided with a spiral groove (21), the side wall of the main body pipe (2) is provided with a breather valve (8), and the upper end of the main body pipe (2) is internally provided with a guide sleeve;
Wherein, breather valve (8) include external fixation cover (81), spacing ring (82), valve plate (83), reset spring (84), external fixation cover (81) spiro union is provided with the inlet port on main part pipe (2) lateral wall in external fixation cover (81), spacing ring (82) spiro union is arranged in external fixation cover (81), in the middle of external fixation cover (81), spacing ring (82) are arranged in to valve plate (83), reset spring (84) correspond the cover and are arranged in on valve plate (83), and the butt is arranged in on spacing ring (82), be provided with the body of rod that corresponds with spacing ring (82) middle part on valve plate (83).
3. A counter-stiffness self-resetting rotational friction damper as defined in claim 2, wherein: the sealing ring (9) is formed by bending steel bars, and the section of the sealing ring is of a C-shaped structure.
4. A counter-stiffness self-resetting rotational friction damper as defined in claim 3, wherein: the upper assembly comprises an inner cylinder (3), a piston sleeve (6) and an upper fixing disc (4), wherein the inner cylinder (3) is inserted into the main body pipe (2), the piston sleeve (6) is arranged at the end part of the inner cylinder (3) and is convenient to be correspondingly attached to the main body pipe (2), and a guide sliding block (61) corresponding to the spiral groove (21) is arranged on the outer side wall of the piston sleeve (6);
Wherein, the joint surface of the guide sliding block (61) and the spiral groove (21) is provided with a friction strip.
5. The anti-stiffness self-resetting rotational friction damper of claim 4, further comprising: the upper fixing disc (4) is fixedly arranged at the end part of the inner column body (3) through a fastening screw (7), and flange holes for installation and fixation are formed in the upper fixing disc (4) and the lower fixing disc (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322548343.9U CN221003593U (en) | 2023-09-19 | 2023-09-19 | Reverse stiffness self-resetting rotary friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322548343.9U CN221003593U (en) | 2023-09-19 | 2023-09-19 | Reverse stiffness self-resetting rotary friction damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003593U true CN221003593U (en) | 2024-05-24 |
Family
ID=91087917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322548343.9U Active CN221003593U (en) | 2023-09-19 | 2023-09-19 | Reverse stiffness self-resetting rotary friction damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003593U (en) |
-
2023
- 2023-09-19 CN CN202322548343.9U patent/CN221003593U/en active Active
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