CN216865554U - Assembled rotary friction damping device - Google Patents
Assembled rotary friction damping device Download PDFInfo
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- CN216865554U CN216865554U CN202220097367.XU CN202220097367U CN216865554U CN 216865554 U CN216865554 U CN 216865554U CN 202220097367 U CN202220097367 U CN 202220097367U CN 216865554 U CN216865554 U CN 216865554U
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Abstract
The utility model relates to the technical field of seismic isolation and reduction, in particular to an assembled rotary friction damping device; the energy consumption node mainly comprises a plurality of pressure plates, friction steel plates and friction materials, wherein the friction steel plates and the pressure plates are arranged in a laminated mode to form a connecting rod mechanism, a certain initial included angle theta is formed between the pressure plates and the friction steel plates, and the friction materials capable of generating friction force are arranged between the friction steel plates and the pressure plates; the utility model converts the traditional horizontal friction energy consumption into the rotary friction energy consumption, and adjusts the friction output by adjusting the initial included angle, adding energy consumption nodes and adopting a combination mode of parallel arrangement. The damping device has stable performance, high energy consumption utilization rate, small occupied space and unlimited installation space, and is suitable for market popularization and engineering application.
Description
Technical Field
The utility model relates to the technical field of seismic isolation and reduction, in particular to an assembled rotary friction damping device.
Background
When modern buildings are developed in a large step towards a direction with higher height and larger span, natural disasters such as earthquake, wind vibration and the like limit the pace of rapid development, and China is located at the boundary of Pacific plates and Eurasian plates and is located between two earthquake zones, and belongs to one of multiple earthquake countries. The traditional structural seismic method dissipates seismic energy by means of elastic-plastic deformation of a main structure, improves the lateral stiffness resistance and the self deformability of the structure by increasing the section size of a beam column of a building structure so as to achieve a seismic grade, but the mode cannot avoid damage to the building structure to a certain degree, the seismic effect is not ideal, the building attractiveness and the use function are influenced, and the manufacturing cost is high.
With the development of seismic isolation and reduction technology of buildings, the seismic requirements of buildings can be met by installing energy dissipaters in building structures, such as displacement-related dampers, speed-related dampers, composite dampers, seismic isolation rubber supports and the like. The friction damper is a damping device with wide application because of simple structure, low cost, simple and convenient construction and installation, stable mechanical property, good fatigue property and strong energy consumption capability. However, the conventional flat plate type friction damper is large in structural size and difficult to install in a specific space, friction force is adjusted mostly by adjusting bolt pretightening force, the operation is inconvenient, human factors can be introduced by frequent operation, the performance is unstable, the connecting end of the damper cannot be fully utilized to play an energy consumption role, the energy consumption efficiency is low, under the action of the large bolt pretightening force, buckling deformation is easy to occur when a friction steel plate reciprocates, a friction material is worn and damaged, the utilization rate of the friction material is low, and the mechanical performance of the damper is unstable. The damping efficiency of the flat plate type friction damper under the heavy earthquake cannot meet the design requirement of building damping vibration, and the engineering application scenes of the flat plate type friction damper are few.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an assembly type rotary friction damping device, which converts the traditional horizontal friction energy consumption into the rotary friction energy consumption, and adjusts the friction output by adjusting an initial included angle, adding energy consumption nodes and adopting a combination mode of parallel arrangement.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an assembled rotary-type friction damping device, mainly includes a plurality of power consumption node, power consumption node mainly includes a plurality of clamp plates, friction steel sheet, friction material, the formation link mechanism is arranged with the clamp plate stromatolite to friction steel sheet, and 4 are no less than to the quantity of clamp plate, friction steel sheet quantity be no less than 2, the distribution of friction steel sheet and clamp plate all be not less than two rows, and clamp plate and friction steel sheet all can increase at thickness and length direction, form certain initial contained angle theta between clamp plate and friction steel sheet, set up the friction material that can produce frictional force between friction steel sheet and the clamp plate.
Furthermore, the energy consumption node further comprises a gasket, a disc-shaped gasket, a nut and a pre-tightening bolt, bolt holes are formed in the centers of the plate body of the pressing plate and the friction steel plate and the center of the friction material, the pre-tightening bolt penetrates through the bolt holes of the gasket, the disc-shaped gasket, the pressing plate, the friction steel plate and the friction material respectively to be fastened and connected together, and the nut is arranged at the tail end of the pre-tightening bolt.
Further, the pressing plate comprises a first pressing plate and a second pressing plate, a pin shaft hole is formed in the head of the friction steel plate, a sinking groove is formed in one side of the first pressing plate, sinking grooves are formed in two sides of the second pressing plate, the first pressing plate is placed on the outermost side of the second pressing plate and the friction steel plate, circular gaskets with bolt holes are arranged on two sides of the first pressing plate, and the friction material is placed in the sinking grooves of the first pressing plate and the second pressing plate.
Further, the width of the pressing plate and the plate body of the friction steel plate is larger than the diameter of the friction material, the thickness of the friction material is larger than the depth of the sinking groove, and the diameter of the gasket and the sinking groove is the same as the diameter of the friction material.
Furthermore, the friction material can be made of wear-resistant materials such as semimetal, copper alloy or metal ceramic composite materials, and the side face of the friction material is sealed by glass cement.
Furthermore, a disc-shaped gasket or a hard spring is arranged between the gasket and the nut.
Furthermore, the assembled rotary friction damping device further comprises embedded parts installed in pairs, wherein the embedded parts comprise anchor bars embedded into the wall body, embedded plates connected with the anchor bars and lug plates vertically connected with the embedded plates.
Furthermore, the friction steel plate head is connected with the lug plate through a pin shaft.
Furthermore, the distribution of the friction steel plates and the pressing plates is not less than two rows.
Furthermore, the assembled rotary friction damping device can increase the friction force by increasing the initial included angle between the pressure plate and the friction steel plate.
The working principle of the utility model is as follows: the friction steel plates are clamped between the pressing plates and are arranged in a laminated mode, meanwhile the friction steel plates and the pressing plates are connected end to form a connecting rod mechanism, friction materials capable of generating friction force are installed between the friction steel plates and the pressing plates, pressure is applied to each energy dissipation node through the pre-tightening bolts, the disc-shaped gaskets and the gasket assemblies, when the damping device is under the action of dynamic load, the damping device can generate an effect of prolonging or shortening one-way change, and the friction steel plates at the energy dissipation nodes and the friction materials rotate relatively to generate friction force to achieve friction energy dissipation.
Compared with the prior art, the utility model has at least one of the following beneficial effects:
1. the damping device converts the traditional horizontal friction energy consumption into the rotary friction energy consumption, adjusts the friction output by adjusting the initial included angle, adding the energy consumption nodes and adopting the combination mode of parallel arrangement, has simple structure, convenient installation, low price, wide application range and high energy consumption efficiency, has higher practical value and economic benefit and is suitable for market popularization.
2. The utility model fully utilizes the working principle of the damping device and greatly improves the energy consumption capability.
3. Under the condition of heavy earthquake, the displacement angle between layers generated by the building structure is large, the stroke of the flat plate type friction damper is limited, the requirement of earthquake (vibration) resistance cannot be met, and the rotary friction damping device can be used for solving the problems.
4. The utility model discloses a can realize vertical and horizontal direction power consumption simultaneously.
5. The existing damper is large in structural size and difficult to install under a specific space size, and the structural size of the rotary friction damping device can be made smaller under the condition of reaching the same friction force, so that the installation space is saved, and the rotary friction damping device is suitable for various installation occasions.
6. This rotary-type friction damping device need not adjusting bolt moment of torsion and changes frictional force, and required frictional force is satisfied in the initial contained angle of accessible adjustment friction steel sheet and clamp plate.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a sectional view of fig. 3.
Fig. 5 is a schematic view of the first pressing plate in fig. 2.
Fig. 6 is a schematic view of the second platen of fig. 2.
FIG. 7 is a schematic structural view of the friction steel plate of FIG. 2.
FIG. 8 is a schematic view of the friction material of FIG. 2.
Fig. 9 is a schematic view of the installation of the present invention.
Fig. 10 is a schematic structural view of embodiment 3 of the present invention.
FIG. 11 is a hysteresis curve corresponding to the assembled rotary-type friction damping device of the present invention with different initial angles.
In the figure: 1-pressing plate, 2-friction steel plate, 3-friction material, 4-gasket, 5-dish-shaped gasket, 6-nut, 7-pre-tightening bolt, 8-embedded part, 9-wall body, 10-pin shaft, 11-first pressing plate, 12-second pressing plate, 13-sink groove, 81-anchor bar, 82-embedded plate and 83-lug plate.
Detailed Description
As shown in fig. 1 to 11, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example 1
As shown in fig. 1, an assembled rotary friction damping device mainly comprises a plurality of energy consumption nodes, wherein the energy consumption nodes mainly comprise a plurality of pressing plates 1, friction steel plates 2 and friction materials 3, the friction steel plates 2 and the pressing plates 1 are arranged in a laminated manner to form a link mechanism, the number of the friction steel plates 2 and the number of the pressing plates 1 are not less than two, a certain initial included angle θ is formed between the pressing plates 1 and the friction steel plates 2, and the friction materials 3 capable of generating friction force are arranged between the friction steel plates 2 and the pressing plates 1; the energy consumption node further comprises a gasket 4, a disc-shaped gasket 5, a nut 6 and a pre-tightening bolt 7, bolt holes are formed in the centers of the plate bodies of the pressing plate 1 and the friction steel plate 2 and the centers of the friction material 3, the pre-tightening bolt 7 penetrates through the bolt holes of the gasket 4, the disc-shaped gasket 5, the pressing plate 1, the friction steel plate 2 and the friction material 3 respectively to be fastened and connected together, and the nut 6 is arranged at the tail end of the pre-tightening bolt 7; the pressing plate 1 further comprises a first pressing plate 11 and a second pressing plate 12, the number of the first pressing plate 11 is 4, the second pressing plate 12 is not arranged in the embodiment, the number of the friction steel plates 2 is 2, pin shaft holes are formed in the plate heads of the friction steel plates 2, a sinking groove 13 is formed in one side of the first pressing plate 11, circular gaskets 4 with bolt holes are arranged on two sides of the first pressing plate 11, and the friction materials 3 are placed in the sinking groove 13 of the first pressing plate 11; the width of the pressing plate 1 and the plate body of the friction steel plate 2 is larger than the diameter of the friction material 3, the thickness of the friction material 3 is larger than the depth of the sinking groove 13, and the diameter of the gasket 4 and the sinking groove 13 is the same as the diameter of the friction material 3; the friction material 3 can be made of a semi-metal wear-resistant material, and the side surface of the friction material is sealed by glass cement; a disc-shaped gasket 5 is arranged between the gasket 4 and the nut 6.
The working process of the utility model is as follows: setting an initial included angle theta formed between a pressing plate 1 and a friction steel plate 2, respectively penetrating a pre-tightening bolt 7 through bolt holes of a gasket 4, a disc-shaped gasket 5, the pressing plate 1, the friction steel plate 2 and a friction material 3 to be tightly connected together, arranging a nut 6 at the tail end of the pre-tightening bolt 7, and tightly pressing the friction material 3 with the pressing plate 1 and the friction steel plate 2 which are in contact with the friction material 3 by generated tightening force; the plate head of the friction steel plate is connected with the lug plate 83 through the pin shaft 10, and the initial included angle between the friction steel plate and the pressing plate can be adjusted to meet the required friction force.
Example 2
As shown in fig. 2-8, an assembly type rotary friction damping device is improved in embodiment 1, the number of the first pressing plates 11 is 6, the number of the friction steel plates 2 is 4, the number of the second pressing plates 12 is 3, pin holes are formed in the plate heads of the friction steel plates 2, a sinking groove 13 is formed in one side of each first pressing plate 11, sinking grooves 13 are formed in both sides of each second pressing plate 12, and the first pressing plates 11 are placed on the outermost sides of the second pressing plates 12 and the friction steel plates 2.
As shown in fig. 9, the assembly type rotary friction damping device further comprises embedded parts 8 installed in pairs, wherein the embedded parts 8 comprise anchor bars 81 embedded in the wall 9, embedded plates 82 connected with the anchor bars 81, and ear plates 83 vertically connected with the embedded plates 82, and the plate heads of the friction steel plates 2 are connected with the ear plates 83 through pin shafts 10.
The working process of the utility model is as follows: setting an initial included angle theta formed between a pressing plate 1 and a friction steel plate 2, respectively penetrating a pre-tightening bolt 7 through bolt holes of a gasket 4, a disc-shaped gasket 5, the pressing plate 1, the friction steel plate 2 and a friction material 3 to be tightly connected together, arranging a nut 6 at the tail end of the pre-tightening bolt 7, and tightly pressing the friction material 3 with the pressing plate 1 and the friction steel plate 2 which are in contact with the friction material 3 by generated tightening force; the plate head of the friction steel plate is connected with the lug plate 83 through the pin shaft 10, and the initial included angle between the friction steel plate and the pressing plate can be adjusted to meet the required friction force.
Example 3
As shown in fig. 10, an assembled rotary-type friction damping device is modified from embodiment 2 by including 6 first pressing plates 11, 6 second pressing plates 12, and 6 friction steel plates 2, wherein the first pressing plate 11-friction steel plate-second pressing plate 12-friction steel plate-first pressing plate 11 is configured, and a friction material 3 capable of generating friction force is disposed between the pressing plate 1 and the friction steel plate 2.
Example 4
The hysteresis curve shown in fig. 11 is characterized in that the friction load increases with the increase of the initial included angle, and the friction resistance can be increased by increasing the initial included angle between the pressure plate and the friction steel plate.
It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the utility model and it is intended to cover in the claims the utility model as defined in the appended claims.
Claims (7)
1. The utility model provides an assembled rotary-type friction damping device, mainly includes a plurality of power consumption node, power consumption node mainly includes a plurality of clamp plates (1), friction steel sheet (2), friction material (3), its characterized in that: the friction steel plates (2) and the pressing plates (1) are arranged in a laminated mode to form a connecting rod mechanism, the number of the pressing plates (1) is not less than 4, the number of the friction steel plates (2) is not less than 2, the friction steel plates (2) and the pressing plates (1) are not less than two rows, an initial included angle theta is formed between the pressing plates (1) and the friction steel plates (2), and friction materials (3) capable of generating friction force are arranged between the friction steel plates (2) and the pressing plates (1);
the device also comprises embedded parts (8) which are installed in pairs, wherein the embedded parts (8) comprise anchor bars (81) embedded into the wall body (9), embedded plates (82) connected with the anchor bars (81), and ear plates (83) vertically connected with the embedded plates (82).
2. An assembled rotary-type friction damping device as set forth in claim 1, wherein: the energy consumption node further comprises a gasket (4), a disc-shaped gasket (5), a nut (6) and a pre-tightening bolt (7), bolt holes are formed in the centers of the pressing plate (1) and the friction material (3) of the friction steel plate (2), the pre-tightening bolt (7) penetrates through the bolt holes of the gasket (4), the disc-shaped gasket (5), the pressing plate (1), the friction steel plate (2) and the friction material (3) respectively to be fastened and connected together, and the nut (6) is arranged at the tail end of the pre-tightening bolt (7).
3. An assembled rotary-type friction damping device as defined in claim 1 or 2 wherein: the pressing plate (1) comprises a first pressing plate (11) and a second pressing plate (12), a pin shaft hole is formed in the head of the friction steel plate (2), a sinking groove (13) is formed in one side of the first pressing plate (11), sinking grooves (13) are formed in two sides of the second pressing plate (12), the first pressing plate (11) is placed on the outermost side of the second pressing plate (12) and the friction steel plate (2), circular gaskets (4) with bolt holes are arranged on two sides of the first pressing plate (11), and friction materials (3) are placed in the sinking grooves (13) of the first pressing plate (11) and the second pressing plate (12).
4. An assembled rotary-type friction damping device as set forth in claim 3, wherein: the plate body width of the pressure plate (1) and the friction steel plate (2) is larger than the diameter of the friction material (3), the thickness of the friction material (3) is larger than the depth of the sinking groove (13), and the diameters of the gasket (4) and the sinking groove (13) are the same as the diameter of the friction material (3).
5. An assembled rotary-type friction damping device as defined in claim 1, 2 or 4 wherein: the friction material (3) can be a composite wear-resistant material of semimetal, copper alloy or metal ceramic, and the side surface of the friction material is sealed by glass cement.
6. An assembled rotary-type friction damping device as set forth in claim 2, wherein: a disc-shaped gasket (5) or a hard spring is arranged between the gasket (4) and the nut (6).
7. An assembled rotary-type friction damping device as set forth in claim 1, wherein: the plate head of the friction steel plate (2) is connected with the lug plate (83) through a pin shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220097367.XU CN216865554U (en) | 2022-01-14 | 2022-01-14 | Assembled rotary friction damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220097367.XU CN216865554U (en) | 2022-01-14 | 2022-01-14 | Assembled rotary friction damping device |
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| Publication Number | Publication Date |
|---|---|
| CN216865554U true CN216865554U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220097367.XU Active CN216865554U (en) | 2022-01-14 | 2022-01-14 | Assembled rotary friction damping device |
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|---|---|
| CN (1) | CN216865554U (en) |
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- 2022-01-14 CN CN202220097367.XU patent/CN216865554U/en active Active
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