CN118128215B - Self-adaptive unidirectional friction damper capable of self-resetting - Google Patents
Self-adaptive unidirectional friction damper capable of self-resetting Download PDFInfo
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- CN118128215B CN118128215B CN202410543682.4A CN202410543682A CN118128215B CN 118128215 B CN118128215 B CN 118128215B CN 202410543682 A CN202410543682 A CN 202410543682A CN 118128215 B CN118128215 B CN 118128215B
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- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 description 26
- 238000006073 displacement reaction Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 10
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- 230000009471 action Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The invention relates to a self-adaptive unidirectional friction damper capable of self-resetting, which comprises a quadrangular frustum frame, a first elastic friction system and a second elastic friction system, wherein two ends of the second elastic friction system are respectively connected with two opposite side walls of the frame in a sliding manner, one end of the first elastic friction system penetrates through the upper bottom surface of the frame to be fixedly connected with a limiting plate, and the other end of the first elastic friction system is connected with the second elastic friction system through a connecting block.
Description
Technical Field
The invention relates to the technical field of building shock absorption, in particular to a self-adaptive unidirectional friction damper capable of self-resetting.
Background
The building structure is continuously affected by external influence to generate vibration in the whole life cycle, wherein the vibration comprises the influence of surrounding environment (such as the disassembly of old building, the disturbance of large-scale construction equipment, the vibration of high-speed rail operation and the like) and earthquake action, and particularly the normal use of the building is greatly affected and the life of a person is greatly threatened once the earthquake occurs. In addition, building repair and reconstruction after an earthquake is also a relatively complex problem. Therefore, the damping measures of the building are particularly important, and with the development of the current building damping technology, the friction damper which is characterized by replacement, self-resetting and the like and is represented by friction energy consumption is produced, so that the influence of external vibration on the building is reduced to a certain extent.
However, the traditional friction damper is generally high in rigidity and cannot well play a role under small displacement, so that the building is easy to produce fatigue damage under small-displacement environments such as small shock and external vibration, and the problem is particularly remarkable for steel structure buildings. In addition, based on the design concept of 'self-resetting and repair-free', the friction damper is gradually connected with a self-resetting mechanism, but the traditional friction damper with the self-resetting function is difficult to completely reset a building structure and easy to generate larger residual deformation due to larger friction energy consumption capability in the resetting process.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the self-adaptive unidirectional friction damper capable of resetting, wherein the friction energy consumption presents a continuous increasing effect along with the increase of the displacement of a building, the friction energy consumption presents a continuous decreasing effect in the resetting process of the building, the self-adaptive unidirectional friction damper has a good damping effect when the building is displaced in size, and the building is prevented from generating residual deformation under the condition of larger displacement, so that the service life of the building is prolonged.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The invention provides a self-adaptive unidirectional friction damper capable of self-resetting, which comprises a quadrangular frustum frame, a first elastic friction system and a second elastic friction system, wherein the first elastic friction system comprises a driving rod and a first disc spring, the second elastic friction system comprises a guide rod, a second disc spring and a third disc spring, the frame comprises a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall is opposite to the third side wall, the second side wall is opposite to the fourth side wall, the driving rod is connected with the guide rod through a connecting block, one end of the driving rod is fixedly connected with a limiting plate in a sliding manner through the upper bottom surface of the frame, the other end of the driving rod is fixedly connected with the connecting block in a penetrating manner through the connecting block, two ends of the guide rod are respectively connected with the second side wall and the fourth side wall in a sliding manner, the connecting block is positioned in the middle of the guide rod, the first disc spring is sleeved on the driving rod, two ends of the first disc spring are respectively contacted with the upper bottom surface of the frame and the connecting block, the second disc spring is arranged between the connecting block and the fourth side wall, the third disc spring is arranged between the driving rod and the fourth disc spring, the second disc spring and the third disc spring is arranged between the second disc spring and the fourth disc spring and the third disc spring is also arranged between the second disc and the fourth disc spring and the connecting block.
Further, still be provided with first friction piece between second dish spring and the second lateral wall, still be provided with second friction piece between third dish spring and the fourth lateral wall, first friction piece and second friction piece all slip cap are on the guide arm, and the one end contact of connecting block is kept away from with second lateral wall and second dish spring respectively to the upper and lower extreme of first friction piece, the one end that the second dish spring is close to the connecting block contacts with the connecting block, and the one end and the fourth lateral wall contact of connecting block are kept away from with the third dish spring respectively to the lower extreme on the second friction piece, and the one end that the third dish spring is close to the connecting block contacts with the connecting block.
Further, the first friction piece is a first wedge block, and the second friction piece is a second wedge block.
Further, the first friction piece includes first voussoir and first friction long plate, the second friction piece includes second voussoir and second friction long plate, first voussoir sets up between second dish spring and second lateral wall, first friction long plate sets up between first voussoir and second lateral wall, the second voussoir sets up between third dish spring and fourth lateral wall, the second friction long plate sets up between second voussoir and fourth lateral wall, first voussoir, and second voussoir all slide the cover on the guide arm, the one end slip cap of first friction long plate is on the guide arm, the other end passes the frame upper bottom surface and is connected with limiting plate upper end through first spring, the one end slip cap of second friction long plate is on the guide arm, the other end passes the frame upper bottom surface and is connected with the limiting plate lower extreme through the second spring, the upper surface and the laminating of second friction long plate, the lower surface and the contact of first voussoir and second dish spring, the lower surface and fourth lateral wall laminating of second friction long plate, the upper surface and second voussoir lower surface and third dish spring contact.
Further, the limiting plate is an H-shaped plate, one end of the driving rod penetrating out of the upper bottom surface of the frame is fixedly connected with the transverse plate of the limiting plate, one end of the first spring is fixedly connected with the bottom surface of the upper groove of the limiting plate, the other end of the first spring is connected with the first friction long plate, one end of the second spring is fixedly connected with the bottom surface of the lower groove of the limiting plate, and the other end of the second spring is connected with the second friction long plate.
Further, the upper groove side wall of the limiting plate is hinged with one end of the first friction long plate connected with the first spring through a first long hole along the axial direction of the first spring, and the lower groove side wall of the limiting plate is hinged with one end of the second friction long plate connected with the second spring through the first long hole.
Further, the second side wall and the fourth side wall are correspondingly provided with sliding grooves, two ends of the guide rod respectively penetrate through the two sliding grooves to be fixedly connected with the third wedge block, and the widths of the third wedge block, the first friction piece and the second friction piece are larger than the widths of the sliding grooves.
Further, the upper bottom surface and the lower bottom surface of the frame are rectangular and the lower bottom surface is opened, the first side wall and the third side wall of the frame are trapezoid, the second side wall and the fourth side wall of the frame are rectangular, two L-shaped friction short plates are further arranged at one end, connected with the connecting block, of the driving rod, one of the L-shaped friction short plates is fixedly connected with the driving rod, the vertical plate is attached to the first side wall of the frame, the other of the L-shaped friction short plates is fixedly connected with the driving rod, and the vertical plate is attached to the third side wall of the frame.
Further, second long holes along the axial direction of the first disc spring are correspondingly formed in the first side wall and the third side wall of the frame, the friction rod penetrates through the two L-shaped friction short plates, and two ends of the friction rod are respectively connected with the second long holes in a sliding mode.
Compared with the prior art, the invention has the beneficial effects that:
(1) The damper provided by the invention can more comprehensively and flexibly cope with the vibration action of the size, the matching combination of the friction plate and the disc spring is not used for distinguishing the displacement condition in the prior art, the friction plate and the disc spring have variable friction force on the basis of stable friction force so as to meet the energy consumption requirements of different displacements, and a plurality of energy consumption systems are not required to be designed to cope with the large displacement and the small displacement of a building respectively.
(2) The damper provided by the invention has a simple structure, uses as few materials and building space as possible, realizes the design goal of flexibly coping with the displacement by controlling the size of the friction force, and has clear and definite working principle compared with the traditional hierarchical friction damper, and is more convenient and beneficial to calculating and deducing the energy consumption capacity of the damper.
(3) The damper provided by the invention is divided into longitudinal energy consumption and transverse energy consumption, the change of the longitudinal energy consumption is realized by changing the distance between the two opposite side walls of the frame, the longitudinal energy consumption is gradually reduced in the resetting process of the building, the building is prevented from generating residual deformation, and meanwhile, the building is prevented from being damaged by inertia.
Drawings
FIG. 1 is a schematic view of a first overall structure of a damper of the present invention;
FIG. 2 is a schematic view of a second overall structure of the damper of the present invention;
FIG. 3 is a schematic view of the structure of the inside of the frame of the present invention;
FIG. 4 is a schematic diagram of a connection structure of a first elastic friction system and a second elastic friction system according to the present invention;
FIG. 5 is a schematic view of the structure of the frame of the present invention;
FIG. 6 is a schematic view of a limiting plate according to the present invention;
FIG. 7 is a schematic view of a first wedge of the present invention;
Reference numerals: 1. frame, 101, first side wall, 102, second side wall, 103, third side wall, 104, fourth side wall, 105, chute, 106, second slot, 2, first elastic friction system, 201, active lever, 202, first disc spring, 203, L-shaped friction short plate, 3, second elastic friction system, 301, guide lever, 302, second disc spring, 303, third disc spring, 304, first wedge, 305, second wedge, 306, first friction long plate, 307, second friction long plate, 308, third wedge, 4, limit plate, 401, first slot, 5 first spring, 6, connecting block, 7, friction lever, 8, second spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, a self-adaptive unidirectional friction damper capable of self-resetting comprises a quadrangular frustum frame 1, a first elastic friction system 2 and a second elastic friction system 3, wherein the first elastic friction system 2 comprises a driving rod 201 and a first disc spring 202, the second elastic friction system 3 comprises a guide rod 301, the frame 1 comprises a first side wall 101, a second side wall 102, a third side wall 103 and a fourth side wall 104, the first side wall 101 is opposite to the third side wall 103, the second side wall 102 is opposite to the fourth side wall 104, the driving rod 201 is connected with the guide rod 301 through a connecting block 6, the first disc spring 202 is prevented from being mutually influenced by a second disc spring 302 and the third disc spring 303, one end of the driving rod 201 penetrates through the upper bottom surface of the frame 1 and is fixedly connected with a limiting plate 4, the other end penetrates through the connecting block 6 and is fixedly connected with the connecting block 6, the guide rod 301 penetrates through the two ends of the connecting block 6 and is respectively connected with the second side wall 102 and the fourth side wall 104, the connecting block 6 is positioned in the middle of the guide rod 301 and is fixedly connected with the guide rod 301, the first disc spring 202 is sleeved on the driving rod 201 and is respectively provided with the bottom surface 1 and the frame 6 and the second disc spring 302 and the second disc spring 303 are respectively contacted with the second disc spring 302 and the third disc spring 303, and the connecting block 302 is arranged between the second disc spring and the second disc spring 302 and the third disc spring 303 is respectively contacted with the second disc spring 6 and the connecting block 6 and the third disc spring 6.
In this embodiment, during installation, one end of the driving rod 201 fixedly connected with the limiting plate 4 is connected with a building on one side, one end of the side wall of the frame 1 close to the lower bottom surface is connected with a building on the other side, when the building vibrates, the driving rod 201 slides relatively with the frame 1, meanwhile, the driving rod 201 drives the guide rod 301 to slide relatively with the side wall of the frame 1 through the connecting block 6, the existence of the limiting plate 4 prevents the driving rod 201 and the guide rod 301 from separating from the frame 1, as the relative displacement between the driving rod 201 and the frame 1 increases, friction energy consumption is generated between the driving rod 201 and the upper bottom surface of the frame 1, between the guide rod 301 and the second side wall 102 and between the guide rod 301 and the fourth side wall 104, the first disc spring 202 is gradually compressed under the pushing of the connecting block 6, the elastic potential energy is gradually increased, and the energy consumption is increased, so that in the process of displacement of the building, the energy consumption of this embodiment increases continuously and responds to the vibration absorbing demands of different displacements of the building flexibly; in the resetting process of a building, the relative displacement of the driving rod 201 and the frame 1 is gradually reduced, the energy consumption of the damper is gradually reduced, and meanwhile, the restoring force of the first disc spring 202, the second disc spring 302 and the third disc spring 303 can promote the resetting of the building and avoid the residual deformation of the building, so that the fatigue damage of the building can be avoided due to the fact that the friction force in the damper is too large under the small displacement of the building, the poor damping effect due to the fact that the energy consumption of the damper is too small during the large displacement of the building is avoided, the energy consumption of the damper is gradually reduced during the resetting process after the large displacement of the building, the resetting of the building is not influenced due to the fact that the friction force of the damper is too large, the residual deformation of the building is generated, the buffering effect is achieved on the resetting of the building, and the building is not damaged due to inertia.
Referring to fig. 1 to 4, further, a first friction member is further disposed between the second disc spring 302 and the second side wall 102, a second friction member is further disposed between the third disc spring 303 and the fourth side wall 104, the first friction member and the second friction member are both sleeved on the guide rod 301 in a sliding manner, the upper end and the lower end of the first friction member are respectively contacted with the second side wall 102 and one end of the second disc spring 302, which is far away from the connecting block 6, the end of the second disc spring 302, which is close to the connecting block 6, is contacted with the connecting block 6, the upper end and the lower end of the second friction member are respectively contacted with one end of the third disc spring 303, which is far away from the connecting block 6, and the fourth side wall 104, and one end of the third disc spring 303, which is close to the connecting block 6, is contacted with the connecting block 6.
In this embodiment, in the displacement process of the building, besides the friction energy consumption generated between the driving rod 201 and the upper bottom surface of the frame 1, between the guide rod 301 and the second side wall 102, and between the guide rod 301 and the fourth side wall 104, friction energy consumption is generated between the first friction member and the second side wall 102, and between the second friction member and the fourth side wall 104, the elastic potential energy of the second disc spring 302 and the third disc spring 303 increases, the acting force between the first friction member and the second side wall 102, and between the second friction member and the fourth side wall 104 is driven to increase, as the displacement of the building increases, the friction energy consumption between the first friction member and the second side wall 102, and between the second friction member and the fourth side wall 104 all show an increasing trend, and as the displacement of the building decreases, the acting force between the first friction member and the second side wall 102, and between the second friction member and the fourth side wall 104 gradually decreases, and the damper friction energy consumption shows a decreasing trend.
Referring to fig. 1 to 3 and fig. 6 to 7, preferably, the first friction member includes a first wedge 304 and a first long friction plate 306, the second friction member includes a second wedge 305 and a second long friction plate 307, the limiting plate 4 is an H-shaped plate, one end of the driving rod 201 penetrating out of the upper bottom surface of the frame 1 is fixedly connected with the transverse plate of the limiting plate 4, the first wedge 304 is disposed between the second disc spring 302 and the second side wall 102, the first long friction plate 306 is disposed between the first wedge 304 and the second side wall 102, the second wedge 305 is disposed between the third disc spring 303 and the fourth side wall 104, the second long friction plate 307 is disposed between the second wedge 305 and the fourth side wall 104, the first wedge 304 and the second wedge 305 are both slidably sleeved on the guide rod 301, one end of the first long friction plate 306 is slidably sleeved on the guide rod 301, the other end passes through the upper bottom surface of the frame 1 and is connected with the bottom surface of the upper groove of the limiting plate 4 through the first spring 5, one end of the first spring 5 is fixedly connected with the bottom surface of the upper groove of the limiting plate 4, the other end is connected with the first friction long plate 306, one end of the second friction long plate 307 is sleeved on the guide rod 301 in a sliding way, the other end passes through the upper bottom surface of the frame 1 and is connected with the bottom surface of the lower groove of the limiting plate 4 through the second spring 8, one end of the second spring 8 is fixedly connected with the bottom surface of the lower groove of the limiting plate 4, the other end is connected with the second friction long plate 307, the upper surface of the first friction long plate 306 is jointed with the second side wall 102, the lower surface of the first wedge block 304 is jointed with the second disc spring 302, the lower surface of the second friction long plate 307 is jointed with the fourth side wall 104, the upper surface of the second wedge block 305 is jointed with the lower surface of the third disc spring 303, the upper groove side wall of the limiting plate 4 is also hinged with one end of the first spring 5 connected with the first friction long plate 306 through a first long hole 401 along the axial direction of the first spring 5, and the lower groove side wall of the limiting plate 4 is also hinged with one end of the second spring 8 connected with the second friction long plate 307 through the first long hole 401.
In this embodiment, in the displacement process of the building, the first long friction plate 306 is always attached to and slides with the second side wall 102 of the frame 1 under the action of the second disc spring 302 and the first spring 5, the second long friction plate 307 is always attached to and slides with the fourth side wall 104 of the frame 1 under the action of the third disc spring 303 and the second spring 8, the first wedge block 304 and the second wedge block 305 can respectively make the stress of the second spring 302 and the third spring 303 in the axial direction uniform, and as the displacement of the building increases, the acting force between the first long friction plate 306 and the second side wall 102 and the acting force between the second long friction plate 307 and the fourth side wall 104 both increase faster, the energy consumption increases faster, the damper vibration reduction response is fast, and the damper energy consumption decreases faster in the building resetting process.
Further, the second side wall 102 and the fourth side wall 104 are correspondingly provided with sliding grooves 105, two ends of the guide rod 301 respectively penetrate through the two sliding grooves 105 and are fixedly connected with a third wedge block 308, and the widths of the third wedge block 308, the first friction piece and the second friction piece are larger than the widths of the sliding grooves 105.
In this embodiment, during the vibration process of the building, the guide rod 301 moves along the chute 105, friction energy dissipation is generated between the guide rod 301 and the chute 105, friction energy dissipation is generated between the third wedge 308 and the side wall of the frame 1, and meanwhile, the reliability of the damper can be ensured under the action of the chute 105 and the third wedge 108.
Referring to fig. 1, fig. 2 and fig. 5, the upper bottom surface and the lower bottom surface of the frame 1 are rectangular, the lower bottom surface is open, the first side wall 101 and the third side wall 103 of the frame 1 are both trapezoidal, the second side wall 102 and the fourth side wall 104 of the frame are both rectangular, one end of the driving rod 201 connected with the connecting block 6 is further provided with two L-shaped friction short plates 203, one of the transverse plates of the L-shaped friction short plates 203 is fixedly connected with the driving rod 201, the vertical plate is attached to the first side wall 101 of the frame 1, the other transverse plate of the L-shaped friction short plates 203 is fixedly connected with the driving rod 201, the vertical plate is attached to the third side wall 103 of the frame 1, the first side wall 101 and the third side wall 103 of the frame 1 are correspondingly provided with second long holes 106 along the axial direction of the first disc springs 202, the friction rod 7 passes through the two L-shaped friction short plates 203, and two ends of the friction short plates are respectively slidingly connected with the second long holes 106.
In this embodiment, the first side wall 101 is parallel to the third side wall 103, the angles between the second side wall 102 and the fourth side wall 104 and the bottom surface on the frame 1 are obtuse angles, and when the building vibrates, the distance between the first side wall 101 and the third side wall 103 is unchanged, and friction energy consumption always exists between the vertical plate of one L-shaped friction short plate 203 and the first side wall 101, and friction energy consumption always exists between the vertical plate of the other L-shaped friction short plate 203 and the third side wall 103, and friction energy consumption always exists between the friction rod 7 and the first side wall 101 or the third side wall 103.
In the above embodiment, the first wedge 304, the second wedge 305 and the third wedge 308 have the same structure, and the compression amount of the first disc spring 202, the compression amount of the second disc spring 302, the compression amount of the second disc spring 303, the compression amount of the first spring 5, the compression amount of the second spring 8, the length of the chute 105, the length of the first long hole 401 and the length of the second long hole 106 may be determined according to design requirements.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.
Claims (6)
1. The self-adaptive unidirectional friction damper capable of resetting is characterized by comprising a quadrangular frustum frame (1), a first elastic friction system (2) and a second elastic friction system (3), wherein the first elastic friction system (2) comprises a driving rod (201) and a first disc spring (202), the second elastic friction system (3) comprises a guide rod (301), a second disc spring (302) and a third disc spring (303), the frame (1) comprises a first side wall (101), a second side wall (102), a third side wall (103) and a fourth side wall (104), the first side wall (101) is opposite to the third side wall (103), the second side wall (102) is opposite to the fourth side wall (104), the driving rod (201) is connected with the guide rod (301) through a connecting block (6), one end of the driving rod (201) is fixedly connected with the upper bottom surface of the frame (1) in a sliding manner, the other end of the driving rod (201) is fixedly connected with the connecting block (6) in a penetrating manner, the guide rod (301) is fixedly connected with the connecting block (6), the two ends of the guide rod (301) are respectively connected with the second side wall (103) and the fourth side wall (301) in a sliding manner, and the middle position of the guide rod (301) is fixedly connected with the connecting block (301) respectively, the first disc spring (202) is sleeved on the driving rod (201) and two ends of the first disc spring are respectively contacted with the upper bottom surface of the frame (1) and the connecting block (6), a second disc spring (302) is arranged between the connecting block (6) and the second side wall (102), a third disc spring (303) is arranged between the connecting block (6) and the fourth side wall (104), the second disc spring (302) and the third disc spring (303) are sleeved on the guide rod (301), a first friction piece is further arranged between the second disc spring (302) and the second side wall (102), and a second friction piece is further arranged between the third disc spring (303) and the fourth side wall (104);
The first friction piece and the second friction piece are both sleeved on the guide rod (301) in a sliding mode, the upper end and the lower end of the first friction piece are respectively contacted with one end, far away from the connecting block (6), of the second side wall (102) and one end, far away from the connecting block (6), of the second disc spring (302), one end, close to the connecting block (6), of the second disc spring (302) is contacted with the connecting block (6), the upper end and the lower end of the second friction piece are respectively contacted with one end, far away from the connecting block (6), of the third disc spring (303) and the fourth side wall (104), and one end, close to the connecting block (6), of the third disc spring (303) is contacted with the connecting block (6);
the first friction piece comprises a first wedge block (304) and a first friction long plate (306), the second friction piece comprises a second wedge block (305) and a second friction long plate (307), the first wedge block (304) is arranged between the second disc spring (302) and the second side wall (102), the first friction long plate (306) is arranged between the first wedge block (304) and the second side wall (102), the second wedge block (305) is arranged between the third disc spring (303) and the fourth side wall (104), the second friction long plate (307) is arranged between the second wedge block (305) and the fourth side wall (104), the first wedge block (304) and the second wedge block (305) are both sleeved on the guide rod (301) in a sliding mode, one end of the first friction long plate (306) is sleeved on the guide rod (301) in a sliding mode, the other end of the second friction long plate (307) penetrates through the upper bottom surface of the frame (1) and is connected with the upper end of the limit plate (4) through the first spring (5), one end of the guide rod is sleeved on the guide rod (301), the other end of the second friction long plate (307) penetrates through the upper surface of the frame (1) and is connected with the upper surface of the second disc spring (304) and the upper surface of the second wedge block (304) through the second spring (8) and the upper end of the limit plate (4) is contacted with the upper surface of the lower surface of the first wedge block (304), the lower surface of the second friction long plate (307) is attached to the fourth side wall (104), the upper surface of the second friction long plate is in contact with the lower surface of the second wedge block (305), and the upper surface of the second wedge block (305) is in contact with the third disc spring (303).
2. The self-adaptive unidirectional friction damper capable of resetting according to claim 1, wherein the limiting plate (4) is an H-shaped plate, one end of the driving rod (201) penetrating out of the upper bottom surface of the frame (1) is fixedly connected with the transverse plate of the limiting plate (4), one end of the first spring (5) is fixedly connected with the upper groove bottom surface of the limiting plate (4), the other end of the first spring is connected with the first friction long plate (306), one end of the second spring (8) is fixedly connected with the lower groove bottom surface of the limiting plate (4), and the other end of the second spring is connected with the second friction long plate (307).
3. The self-resetting self-adaptive unidirectional friction damper as claimed in claim 2, wherein the upper groove side wall of the limiting plate (4) is hinged with one end of the first spring (5) connected with the first friction long plate (306) through a first long hole (401) along the axial direction of the first spring (5), and the lower groove side wall of the limiting plate (4) is hinged with one end of the second spring (8) connected with the second friction long plate (307) through the first long hole (401).
4. The self-adaptive unidirectional friction damper capable of resetting according to claim 1, wherein the second side wall (102) and the fourth side wall (104) are correspondingly provided with sliding grooves (105), two ends of the guide rod (301) respectively penetrate through the two sliding grooves (105) to be fixedly connected with the third wedge block (308), and the widths of the third wedge block (308), the first friction piece and the second friction piece are all larger than the width of the sliding groove (105).
5. The self-adaptive unidirectional friction damper capable of resetting according to claim 1, wherein the upper bottom surface and the lower bottom surface of the frame (1) are rectangular and the lower bottom surface is open, the first side wall (101) and the third side wall (103) of the frame (1) are trapezoidal, the second side wall (102) and the fourth side wall (104) of the frame are rectangular, two L-shaped friction short plates (203) are further arranged at one end, connected with the connecting block (6), of the driving rod (201), one of the L-shaped friction short plates (203) is fixedly connected with the driving rod (201), the vertical plate is attached to the first side wall (101) of the frame (1), and the other of the L-shaped friction short plates (203) is fixedly connected with the driving rod (201), and the vertical plate is attached to the third side wall (103) of the frame (1).
6. The self-resetting self-adaptive unidirectional friction damper as claimed in claim 5, wherein the first side wall (101) and the third side wall (103) of the frame (1) are correspondingly provided with second long holes (106) along the axial direction of the first disc spring (202), the friction rod (7) passes through two L-shaped friction short plates (203), and two ends of the friction rod are respectively connected with the second long holes (106) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410543682.4A CN118128215B (en) | 2024-05-06 | 2024-05-06 | Self-adaptive unidirectional friction damper capable of self-resetting |
Applications Claiming Priority (1)
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