CN218405880U - Self-resetting friction-variable energy-consumption damper - Google Patents
Self-resetting friction-variable energy-consumption damper Download PDFInfo
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- CN218405880U CN218405880U CN202222120558.6U CN202222120558U CN218405880U CN 218405880 U CN218405880 U CN 218405880U CN 202222120558 U CN202222120558 U CN 202222120558U CN 218405880 U CN218405880 U CN 218405880U
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- 238000013016 damping Methods 0.000 abstract description 9
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000001953 Hypotension Diseases 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 229920001971 elastomer Polymers 0.000 description 1
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- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a become friction energy dissipation attenuator from reset belongs to shock attenuation technical field. The utility model comprises a friction sleeve, a friction body, a screw rod, a pressurizing gasket I, a pressurizing gasket II, a nut I, a nut II, a disc spring I, a disc spring II, a fixed end cover and a hole-opening end cover; in the utility model, the disc springs are symmetrically arranged and the friction damping part arranged between the two disc springs jointly acts, so that energy can be consumed when the device moves in any left or right direction, and the device can be reset in any direction after the device moves; simultaneously the utility model discloses each spare part convenient for material collection, processing is simple, and the cost is lower, and is convenient for change, easy to maintain, consequently is fit for the large tracts of land and promotes.
Description
Technical Field
The utility model relates to a become friction power consumption attenuator from reset belongs to shock attenuation technical field.
Background
The friction damper is used as an energy dissipation and shock absorption technology, mainly utilizes friction between metals or friction between metals and nonmetal to generate damping, thereby consuming energy, and is widely applied in engineering.
Most of the current friction dampers have a substantially constant slip force on one hand, and the most critical problem in engineering applications for such a friction damper with a constant slip force is how to determine a proper slip friction force. On the other hand, the friction damper does not have the self-resetting function and does not meet the requirements of economy and repeated use. Therefore, it is necessary to provide a self-resetting and friction-changing dissipative damper, and a self-resetting and friction-changing dissipative damper needs to be designed, and the structure and connection of the damper need to be considered.
Disclosure of Invention
The utility model provides a become friction power consumption attenuator from restoring to throne to be used for having found the power consumption damping device who possesses from restoring to throne and become friction through reasonable constitution and connection.
The technical scheme of the utility model is that: a self-resetting friction-variable energy-consumption damper comprises a friction sleeve 1, a friction body 2, a screw rod 3, a pressurizing gasket I4, a pressurizing gasket II 5, a nut I6, a nut II 7, a disc spring I8, a disc spring II 9, a fixed end cover 10 and an opening end cover 11; two ends of the friction sleeve 1 are opened, one open end is connected with the fixed end cover 10, and the other open end is connected with the perforated end cover 11; the friction body 2 arranged in the middle of the friction sleeve 1 is clamped by a pressurizing gasket I4 and a pressurizing gasket II 5; the first end of the screw rod 3 is positioned in the friction sleeve 1, the nut I6, the nut II 7 and the first end of the screw rod 3 are matched to fix the pressurizing gasket I4, the friction body 2 and the pressurizing gasket II 5 which are positioned between the first end and the first end, and the second end of the screw rod 3 is positioned outside the friction sleeve 1; a disc spring I8 is arranged between the fixed end cover 10 and the pressurizing gasket I4, and a disc spring II 9 is arranged between the perforated end cover 11 and the pressurizing gasket II 5.
The central axes of the friction sleeve 1 and the screw rod 3 are superposed with the central axis of the friction body 2.
The amount of precompression of the friction bodies 2 is adjusted by tightening and loosening the nut i 6.
The beneficial effects of the utility model are that: in the utility model, the disc springs are symmetrically arranged and the friction damping part arranged between the two disc springs jointly acts, so that energy can be consumed when the device moves in any left or right direction, and the device can be reset in any direction after the device moves; simultaneously the utility model discloses each spare part convenient for material collection, processing is simple, and the cost is lower, and is convenient for change, easy to maintain, consequently is fit for the large tracts of land and promotes.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 isbase:Sub>A schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along line C-C of FIG. 1;
FIG. 5 is a schematic cross-sectional view taken along line D-D of FIG. 1;
FIG. 6 is a schematic diagram of the utility model illustrating disassembly of the material object;
fig. 7 is a hysteresis curve diagram of the pseudo-static test of the present invention;
the reference numbers in the figures are: 1-friction sleeve, 2-friction body, 3-screw, 4-pressurizing gasket I, 5-pressurizing gasket II, 6-nut I, 7-nut II, 8-disc spring I, 9-disc spring II, 10-fixed end cover and 11-perforated end cover.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in fig. 1, the self-resetting variable-friction energy-consumption damper comprises a friction sleeve 1, a friction body 2, a screw rod 3, a pressurizing gasket I4, a pressurizing gasket II 5, a nut I6, a nut II 7, a disc spring I8, a disc spring II 9, a fixed end cover 10 and an opening end cover 11; two ends of the friction sleeve 1 are opened, one open end is connected with the fixed end cover 10, and the other open end is connected with the perforated end cover 11; the friction body 2 arranged in the middle of the friction sleeve 1 is clamped by a pressurizing gasket I4 and a pressurizing gasket II 5; the first end of the screw rod 3 is positioned in the friction sleeve 1, the nut I6, the nut II 7 and the first end of the screw rod 3 are matched to fix the pressurizing gasket I4, the friction body 2 and the pressurizing gasket II 5 which are positioned between the first end and the first end, and the second end of the screw rod 3 is positioned outside the friction sleeve 1; a disc spring I8 is arranged between the fixed end cover 10 and the pressurizing gasket I4, and a disc spring II 9 is arranged between the perforated end cover 11 and the pressurizing gasket II 5.
Optionally, the central axes of the friction sleeve 1 and the screw 3 coincide with the central axis of the friction body 2.
Alternatively, the amount of precompression of the friction bodies 2 is adjusted by tightening and loosening the nut i 6.
Specifically, the structure shown in fig. 1 to 6:
the friction sleeve 1 is of a steel pipe structure with openings at two ends, and the inner wall is smooth; one end of the friction sleeve 1 is provided with an external thread which is in threaded connection with the fixed end cover 10, and the other end of the friction sleeve 1 is provided with an external thread which is in threaded connection with the perforated end cover 11; the inner wall of the fixed end cover 10 is provided with threads, the outer surface of the fixed end cover is smooth, and the fixed end cover is positioned at the left end of the friction sleeve 1; the inner wall of the opening end cover 11 is provided with threads, the outer surface of the opening end cover is smooth, the opening end cover is positioned at the right end of the friction sleeve 1, and the fixed end cover 10 and the opening end cover 11 can be screwed on the sleeve 1.
The friction body 2 can specifically rub cylindrical rubber, can be made of nitrile rubber, and is arranged in the middle of the friction sleeve 1; the middle position of the friction body 2 is provided with a circular opening, the central axis of the circular opening is superposed with the central axis of the friction sleeve 1, the inner diameter of the circular opening is slightly larger than the diameter of the screw rod 3, and the outer diameter of the circular opening is the same as the inner diameter of the friction sleeve 1. When the damper is started, the friction body 2 generates radial expansion deformation, and the outer side of the friction body 2 generates sliding friction with the inner wall of the friction sleeve 1.
The screw rod 3 is a high-strength screw rod, the central axis of the screw rod coincides with the central axis of the friction sleeve 1, and the screw rod passes through the nut I6, the pressurizing gasket I4, the friction body 2, the pressurizing gasket II 5 and the nut II 7 from left to right in sequence. The pressurizing gasket I4 is a circular iron sheet with a hole in the center and is positioned on the right side of the nut I6 and the left side of the friction body 2; the pressurizing gasket II 5 is a circular iron sheet with a hole in the center and is positioned on the left side of the nut II 7 and the right side of the friction body 2; the pressure pad may be 8mm thick. The nut I6 is a high-strength hexagon nut, and the nut I6 is located on the left side of the pressurizing gasket I4 and is in contact with the pressurizing gasket I4; nut II 7 is high strength hexagon nut, and nut II 7 is located II 5 right sides of pressurization gasket and both contacts. The damper can move left and right along the central axis of the friction sleeve 1 when moving. The nut I6 and the nut II 7 are respectively screwed on the screw rod 3, and the precompression quantity of the friction body 2 is adjusted by screwing and unscrewing the nut I6; under the pressure effect of a disc spring I8 and a disc spring II 9 in the vibration process, the friction force of the friction damping part can be changed, namely the friction force can be changed by adjusting the torque of the screw rod 3 and the nut before vibration, and in addition, the friction damping part can also be changed by the pressure of the spring in vibration.
The disc springs are symmetrically arranged on two sides in the friction sleeve 1: the disc spring I8 is a conical disc-shaped sheet spring, an opening is formed in the middle of the disc-shaped spring, the inner diameter of the disc-shaped spring is slightly larger than the diameter of the screw rod 3, and the outer diameter of the disc-shaped spring is slightly smaller than the inner diameter of the friction sleeve 1; the disc spring I8 is placed on the left side in the friction sleeve 1, is arranged between the fixed end cover 10 and the pressurizing gasket I4 and is in contact with the fixed end cover and the pressurizing gasket I4, and the first end of the screw rod 3 extends into an opening in the middle of the disc spring 8; the disc spring I8 is used for generating deformation, consumes vibration energy together with the friction body 2, and recovers the friction body 2 to the original position by means of self-recovery elasticity after vibration is finished; the disc spring II 9 is a conical disc-shaped sheet spring, an opening is formed in the middle of the disc spring, the inner diameter of the disc spring is slightly larger than the diameter of the screw rod 3, and the outer diameter of the disc spring is slightly smaller than the inner diameter of the friction sleeve 1; the disc spring II 9 is placed on the right side in the friction sleeve 1, is arranged between the pressurizing gasket II 5 and the perforated end cover 11 and is in contact with the pressurizing gasket II 5 and the perforated end cover 11, and the screw rod 3 penetrates through the perforated hole in the middle of the disc spring 9 and penetrates out of the perforated end cover 11; the disc spring II 9 is used for generating deformation, consumes vibration energy together with the friction body 2, and recovers the original position of the friction body 2 by means of self-recovery elasticity after vibration is finished.
The utility model discloses a symmetry sets up belleville spring and installs the frictional damping part combined action between two belleville springs for any direction motion all can consume energy about, and any direction can reset after moving. Still further, through the design that the screw rod second end stretches out, can be so that adopt one the utility model discloses a attenuator just can be used for bearing the pressure of drawing. Moreover, each component of this application, regardless of constituting the utility model discloses friction damping parts's frictional body 2, pressurization gasket I4, pressurization gasket II 5, still screw rod 3, nut I6, nut II 7, belleville spring, friction sleeve, end cover, each component is all convenient for draw materials, and processing is simple, and the cost is lower, and is convenient for change, easy to maintain is fit for the large tracts of land and promotes.
Based on the utility model discloses a become friction power consumption attenuator from restoring to throne can adjust frictional force, be used for from restoring to throne, specifically:
for adjusting friction, including pre-shock and shock adjustments:
adjusting before shaking: the nut I6 is applied with pretightening force to transmit force to the friction body 2 through the pressurizing gasket I4, so that the friction body 2 generates radial expansion deformation, and proper friction force is adjusted; based on the current experiment, the friction body 2 is firstly installed into the sleeve, and therefore the proper friction force is adjusted only by applying pretightening force through the nut I6.
Vibration adjustment: when the screw rod 3 receives pulling force and moves to the right, the right acting force provided by the nut I6 and the screw rod 3 is received to the left end pressurizing gasket I4, thereby the left acting force is provided for the right side pressurizing gasket II 5 by the extrusion of the disk spring II 9 on the right side, the radial expansion deformation of the friction body 2 can be changed along with the change of displacement under the action of the resultant force, and further the output of the damper can be changed.
When the screw rod 3 is pressed to move leftwards, the right pressurizing gasket II 5 is pressed by the nut II 7 and the screw rod 3 to provide a leftward acting force, the left disc spring I8 is extruded to provide a leftward acting force for the right pressurizing gasket I4, the radial expansion deformation of the friction body 2 can be changed along with the change of displacement under the action of resultant force, and further the output force of the damper can be changed.
For self-resetting: assuming that the initial vibration direction is horizontal and rightward movement, the self-resetting friction-variable energy-consumption damper is subjected to rightward pulling force, the screw 3 in the damper generates rightward displacement L integrally, the nut I6 connected with the screw 3 transmits force to the pressurizing gasket I4 on the left side of the friction body 2, the friction body 2 generates deformation L1, and the disc spring II 9 deforms L2. Then the vibration disappears, the deformed disc spring II 9 needs to restore to the original shape, the pressurizing gasket II 5 on the right side of the friction body 2 is pushed by the disc spring II 9, and the pressurizing gasket II 5, the friction body 2 and the pressurizing gasket I4 start to move leftwards to realize resetting. Assuming that the initial vibration direction is horizontal leftward movement, the self-resetting friction-variable energy-consumption damper is subjected to leftward thrust, the screw 3 in the damper generates leftward displacement L integrally, a nut II 7 connected with the screw 3 transmits force to a pressurizing gasket II 5 on the right side of the friction body 2, the friction body 2 generates deformation L1, and the disc spring I8 deforms L2. Then the vibration disappears, the deformed disc spring I8 needs to restore to the original state, the pressurizing gasket I4 on the left side of the friction body 2 is pushed by the disc spring I8, and the pressurizing gasket I4, the friction body 2 and the pressurizing gasket II 5 move rightwards to realize resetting.
The use mode is further explained in the following way by combining the attached drawings:
in fig. 1, the self-resetting friction-to-energy-consuming damper is in an initial balance position, and the friction damping part in the initial state adjusts the appropriate pre-compression amount through the change of the torque of the screw rod 3 and the nut I6. The damper begins to move after the screw rod 3 is stressed, and the seismic energy is dissipated: when the screw rod 3 moves rightwards, a rightwards acting force is transmitted to the pressurizing gasket I4 through the nut I6, the deformed disc spring II 9 can generate a leftwards acting force and transmit the leftwards acting force to the pressurizing gasket II 5, and under the combined action of the pressurizing gasket I4 and the pressurizing gasket II 5, the friction body 2 is extruded to generate radial expansion deformation. The larger the screw rod 3 displaces rightwards, the larger the positive pressure between the friction body 2 and the inner wall of the friction sleeve 1 is, and further the size of the seismic energy dissipated by the friction damper is changed. When the damper is arranged between the structural layers, the damper can automatically adjust the numerical value of the friction force according to the magnitude of the displacement reaction of the main body structure; the hysteresis curve of the self-resetting variable friction damper pseudo-static force test is shown in fig. 7 (the initial conditions of the test are that a nut I6 applies pretightening force, a friction body 2 is axially compressed and slightly radially expanded, a disc spring I8 and a disc spring II 9 are in a relaxed state and are not compressed), and the energy consumption effect and the resetting effect are demonstrated.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (3)
1. The utility model provides a become friction power consumption attenuator from restoring to throne which characterized in that: the device comprises a friction sleeve (1), a friction body (2), a screw (3), a pressurizing gasket I (4), a pressurizing gasket II (5), a nut I (6), a nut II (7), a disc spring I (8), a disc spring II (9), a fixed end cover (10) and a perforated end cover (11);
two ends of the friction sleeve (1) are opened, one open end is connected with the fixed end cover (10), and the other open end is connected with the perforated end cover (11); a friction body (2) arranged in the middle of the friction sleeve (1) is clamped by a pressurizing gasket I (4) and a pressurizing gasket II (5);
the first end of the screw rod (3) is positioned in the friction sleeve (1), the nut I (6), the nut II (7) and the first end of the screw rod (3) are matched to fix the pressurizing gasket I (4), the friction body (2) and the pressurizing gasket II (5) which are positioned between the first end and the second end of the screw rod (3) outside the friction sleeve (1);
a disc spring I (8) is arranged between the fixed end cover (10) and the pressurizing gasket I (4), and a disc spring II (9) is arranged between the perforated end cover (11) and the pressurizing gasket II (5).
2. The self-resetting friction-changing energy-consuming damper of claim 1, wherein: the central axes of the friction sleeve (1) and the screw (3) are superposed with the central axis of the friction body (2).
3. The self-resetting variable friction dissipative damper of claim 1, wherein: the precompression of the friction bodies (2) is adjusted by tightening and loosening the nut (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222120558.6U CN218405880U (en) | 2022-08-12 | 2022-08-12 | Self-resetting friction-variable energy-consumption damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222120558.6U CN218405880U (en) | 2022-08-12 | 2022-08-12 | Self-resetting friction-variable energy-consumption damper |
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| Publication Number | Publication Date |
|---|---|
| CN218405880U true CN218405880U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222120558.6U Active CN218405880U (en) | 2022-08-12 | 2022-08-12 | Self-resetting friction-variable energy-consumption damper |
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| Country | Link |
|---|---|
| CN (1) | CN218405880U (en) |
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2022
- 2022-08-12 CN CN202222120558.6U patent/CN218405880U/en active Active
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