CN115749406B - Self-resetting anti-swing three-dimensional shock insulation friction pendulum support - Google Patents
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- CN115749406B CN115749406B CN202211217418.9A CN202211217418A CN115749406B CN 115749406 B CN115749406 B CN 115749406B CN 202211217418 A CN202211217418 A CN 202211217418A CN 115749406 B CN115749406 B CN 115749406B
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- 230000035939 shock Effects 0.000 title claims abstract description 48
- 238000009413 insulation Methods 0.000 title claims abstract description 44
- 230000000694 effects Effects 0.000 claims abstract description 16
- 238000005265 energy consumption Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 58
- 239000010959 steel Substances 0.000 claims description 58
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 238000002955 isolation Methods 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 239000002783 friction material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a self-resetting anti-swing three-dimensional shock insulation friction pendulum support, wherein a central cavity of a base is provided with a curved surface capable of providing sliding of a horizontal sliding block sleeve, a curved surface axial rod, the horizontal sliding block sleeve and a coordination spring are assembled into a whole, and the curved surface axial rod, the horizontal sliding block sleeve and the coordination spring work together in a coordinated manner with the base and a top plate to provide self-resetting and energy consumption functions in the horizontal direction. In the inside cavity that the base is close to the outside, place anti-swing linkage slider, press from both sides vertical pressurized shock insulation spring between the two, play spacing and the effect of vertical load of transmission. The top plate is arranged in the upper space of the anti-swing linkage slide block, so that the rotation of the top plate around any horizontal axis direction of the support can be limited, and the anti-swing effect is achieved. The tension shock insulation spring is arranged on the top surface of the anti-swing linkage sliding block, and the outer sleeve and the base are installed together through the bottom fixing bolt. The invention has simple structure, easy processing and manufacturing and strong engineering practical application significance.
Description
Technical Field
The invention belongs to the technical field of seismic reduction and isolation control of building structures such as houses, bridges and large-span steel structures in the field of civil engineering, and particularly relates to a self-resetting anti-swing three-dimensional seismic isolation friction swing support.
Background
The earthquake disaster causes irrecoverable loss to life and property safety of people, and the earthquake reduction and isolation device with reliable performance can effectively reduce the influence of earthquake damage. The vibration isolation principle of the vibration isolation device is that the vibration isolation device can prolong the self-vibration period of the structure, so that the excellent period of the earthquake vibration is staggered, and the effect of reducing the resonance of the earthquake vibration to the building structure is achieved.
The effects of an earthquake on a building structure are simply divided into horizontal and vertical effects. Most of the existing seismic isolation supports only have the function of horizontal seismic isolation, but for some special structures, such as large-span space structures, large-span bridges and other building structures, the vertical seismic effect is not negligible. Some existing seismic reduction and isolation supports have three-dimensional seismic reduction and isolation capability, but have lower bearing capability and more complex structure.
In practice, the building structure will transmit bending moment and concentrated force to the shock absorbing and isolating support, wherein the bending moment will have the effect of making the support rotate, but the rubber support, friction pendulum and other common shock absorbing supports cannot provide enough rotation rigidity. This can lead to rotation of the top surface of the support, especially in the case of conventional friction pendulum supports, which are very weak against rotation and which may exhibit a certain wobble under the action of power. And these supports also do not have the effect of vertical shock insulation.
In the design of building structures, the effect of earthquakes on the building structures is generally idealized into the effect of horizontal directions and vertical directions, but the effect of actual earthquakes on the building structures is irregular, the effect of bearing columns on the top surfaces of the supports is also continuously changed, the direction of eccentric effects is also continuously changed, the top surfaces of the supports can rotate and swing irregularly left and right under the action of the earthquakes, and the control degree of engineers on the building structures under the action of the earthquakes is reduced. In addition, the phenomenon of 'swaying' of the top surface of the support also increases the difficulty of construction and maintenance.
The Chinese patent publication No. CN110029736A discloses a special-shaped three-dimensional shock insulation support which is arranged between an upper structure and a lower structure which need shock insulation, and comprises: a bottom plate connected to the lower structure; the at least two special-shaped supports are formed by clamping first elastic blocks by upper and lower parallel sealing plates; the upper connecting corner block and the lower connecting corner block are provided with a horizontal bottom surface and an inclined top surface, and when the upper connecting corner block is inverted and overlapped with the lower connecting corner block, the bottom surfaces are parallel; the horizontal support is formed by clamping a second elastic block by an upper plate and a lower plate; a sliding panel; the upper connecting angle block is reversely connected with the special-shaped support and the lower connecting angle block in sequence and then fixedly supported on the bottom plate in a central symmetry distribution mode, the sliding panel is fixed on the bottom surface of the inverted upper connecting angle block, the horizontal support is vertically supported on the sliding panel in a rotary mode around a central symmetry line, and the contact surface is made of friction materials.
The Chinese patent publication No. CN107604810A discloses a self-resetting friction pendulum three-dimensional shock absorption and isolation support, wherein a concave blind hole is formed in the middle of a lower support plate, a shock absorption layer and a vertical shock absorption spring are arranged at the bottom of the concave blind hole, the upper part of the vertical shock absorption spring is connected with a spherical sliding plate, the upper part of the spherical sliding plate is provided with a hinged sliding block, and the upper spherical surface of the hinged sliding block is positioned in a sliding block accommodating cavity at the lower part of an upper support plate; and a counter-force plate is arranged on the periphery of the upper part of the lower support plate, and a horizontal damping spring is positioned between the counter-force plate and the peripheral wall of the sliding block accommodating cavity.
The technology has no anti-swing function, and the top surface of the support can rotate along the direction of the centroid main shaft of the top surface to different degrees.
Disclosure of Invention
The invention provides a self-resetting anti-swing three-dimensional shock insulation friction pendulum support, which can ensure that the top surface of the support only generates horizontal and vertical linear displacement under the action of power and does not generate the phenomenon of swinging.
As shown in FIG. 1, the support comprises an anti-swing linkage slide block, a top plate, a curved axial rod, a horizontal slide block sleeve, a coordination spring, a base, a vertical compression shock insulation spring, a vertical tension shock insulation spring, an outer sleeve and a bottom fixing bolt. When the anti-swing linkage sliding block and the base are combined together, the anti-swing linkage sliding block can be guaranteed to only generate linear displacement along the axial direction of the support, and the upper structure of the anti-swing linkage sliding block constrains the rotation of the top plate. Therefore, the movement state of the top plate in the support is mainly linear displacement. Meanwhile, the problem that the sliding of the horizontal sliding block sleeve is limited due to the fact that the top plate moves upwards when the top plate of the support moves horizontally under the action of power is solved. In addition, the annular spring has strong bearing capacity and certain energy consumption capacity, so the annular spring is selected as a main vertical vibration isolation element.
When an earthquake occurs, the motion state of the top plate can be decomposed into horizontal linear displacement and vertical linear displacement. When the top plate generates vertical linear displacement, the top plate transmits part of the vertical load born by the top plate to the anti-swing linkage sliding block, then the vertical load is transmitted to the base through the vertical compression shock insulation spring, and then the vertical load is transmitted to other supporting systems at the bottom of the support by the base; the other part of the vertical load can be transmitted to the curved axial rod through the top plate, and the vertical load born by the curved axial rod is transmitted to the water smoothing block sleeve through the coordination spring and then transmitted to the base. In the process, the vertical compression shock insulation spring and the coordination spring are in a compression deformation movement state, and the annular spring can convert part of mechanical energy into heat energy through friction, so that the effect of consuming vertical seismic energy can be achieved. In addition, the distance between the bottom surface of the anti-swing linkage sliding block and the inner surface of the base can be designed according to the actual engineering requirements, and when the vertical load is overlarge, the anti-swing linkage sliding block and the base can be in direct contact with each other and transmit a part of the vertical load, so that the function of protecting the vertical compression shock insulation spring can be achieved.
When the top plate generates horizontal linear displacement, a certain friction force exists on the spherical sliding surface of the top plate and the curved axial rod, so that horizontal load can be transmitted to the curved axial rod; the horizontal slider sleeve allows axial movement of the curved axial rod but limits horizontal movement relative to the horizontal slider sleeve so that the curved axial rod transfers horizontal loads to the horizontal slider sleeve. Then, a certain friction force exists on the spherical contact surface of the horizontal sliding block sleeve and the base, so that horizontal load can be transmitted to the base. In the horizontal load transmission process, friction can be generated between the top plate and the curved surface axial rod, and between the horizontal sliding block sleeve and the base, and part of mechanical energy can be converted into heat energy in the sliding process, so that the horizontal load transmission device has certain energy consumption capability. In addition, the distance between the side surface of the top plate and the anti-swing linkage sliding block can be designed, and the function of controlling the horizontal displacement travel of the top plate in the support can be achieved.
The support also provides a pull-out resistance. When the top plate of the support generates vertical linear displacement, the top plate drives the anti-swing linkage sliding block to move upwards together, and at the moment, the annular spring between the outer sleeve and the anti-swing linkage sliding block can be extruded, so that a certain buffering effect can be achieved.
Preferably, the coordination spring is preferably a ring spring.
In any of the above schemes, it is preferable that a certain lubricant is coated between the top plate and the anti-swing linkage slider, between the anti-swing linkage slider and the outer sleeve, between the anti-swing linkage slider and the base, and between the curved axial rod and the horizontal slider sleeve.
In any of the above solutions, it is preferable that the sliding surfaces between the top plate and the curved axial rod and between the curved axial rod and the base are coated with polytetrafluoroethylene friction material or other friction materials.
Drawings
Fig. 1 is a semi-structural three-dimensional schematic diagram of a self-resetting anti-swing three-dimensional shock insulation friction pendulum support according to the invention.
Fig. 2 is a schematic plan view of a cross-sectional structure of a self-resetting anti-sway three-dimensional vibration-isolation friction pendulum support according to the present invention.
FIG. 3 is a schematic cross-sectional view of an anti-sway linkage slider in the self-resetting anti-sway three-dimensional shock insulation friction pendulum support shown in FIG. 1 according to the present invention.
Fig. 4 shows a curved axial rod 3 in a self-resetting anti-sway three-dimensional shock insulation friction pendulum support according to the present invention as shown in fig. 1.
Fig. 5 shows a horizontal slider sleeve 4 in the self-resetting anti-sway three-dimensional shock insulation friction pendulum support of fig. 1 according to the present invention.
Fig. 6 is a base 6 of the self-resetting anti-sway three-dimensional shock insulation friction pendulum support of fig. 1 according to the present invention.
FIG. 7 is a three-dimensional exploded view of the self-resetting anti-sway three-dimensional shock insulation friction pendulum support of FIG. 1 according to the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Examples
The invention provides a self-resetting anti-swing three-dimensional shock insulation friction pendulum support, which comprises: the anti-swing linkage slide block 1, the top plate 2, the curved axial rod 3, the horizontal slide block sleeve 4, the coordination spring 5, the base 6, the vertical compression shock insulation spring 7, the vertical tension shock insulation spring 8, the outer sleeve 9 and the bottom fixing bolt 10 are shown in fig. 1 and 2.
In the process of processing and manufacturing each component part, the main technical difficulties are the manufacturing of the anti-swing linkage slide block 1 and the installation between the anti-swing linkage slide block 1 and the top plate 2. The basic thought for solving the technical difficulty is provided below, namely the anti-swing linkage slide block 1 is split into a plurality of open-pore round steel plates and steel pipes with different specifications, and then the anti-swing linkage slide block 1 and the top plate 2 are installed together in the process of welding the steel plates and the steel pipes into the anti-swing linkage slide block 1. The implementation procedure for solving the technical difficulties is described in detail below. As shown in fig. 3, the third row outside perforated steel plate 21 of the interlocking slide and the third row inside steel plate 22 of the interlocking slide are welded to the outside surface and the inside surface of the interlocking slide bottom steel pipe 23, respectively. Note that the inside diameter of the linkage slider third row outside perforated steel plate 21 is the same as the outside diameter of the linkage slider bottom steel pipe 23, and the outside diameter of the linkage slider third row inside steel plate 22 is the same as the inside diameter of the linkage slider bottom steel pipe 23; and after the welding is completed, the third row of perforated steel plates 21 of the linkage slide block and the third row of inner steel plates 22 of the linkage slide block are positioned on the same plane. Next, the second row of perforated steel plates 19 of the linkage slide block are welded on the top surface of the steel pipe 23 at the bottom of the linkage slide block, and after the welding is completed, the steel pipe 20 at the top of the linkage slide block is welded on the second row of perforated steel plates 19 of the linkage slide block. After this step, note that the top plate 2 is then placed over the second row of perforated steel plates 19 of the interlocking slides and then the top steel plates 18 of the interlocking slides are welded. Wherein, the outside diameter of the linkage slide top surface perforated steel plate 18, the linkage slide top steel pipe 20 and the linkage slide second row perforated steel plate 19 are the same. At this time, the anti-sway linkage slide 1 and the top plate 2 have been mounted.
Next, the axial rod top plate 11, the axial rod upper plate 12, and the axial rod lower plate 13 are set
Welded to the axial rod 14, resulting in a curved axial rod 3, as shown in fig. 4. The outer layer steel tube 15 of the horizontal slide block is sleeved outside the inner layer steel tube 16 of the horizontal slide block, and the outer layer steel tube 15 of the horizontal slide block and the inner layer steel tube are welded on the bottom plate 17 of the horizontal slide block, and at the moment, the horizontal slide block sleeve 4 is manufactured, as shown in fig. 5.
Next, curved axial bars 3 are produced. An axial rod top plate 11, an axial rod upper plate 12 and an axial rod lower plate 13 with a certain arc surface are welded to an axial rod 14. The upper axial rod plate 12 and the lower axial rod plate 13 are circular rigid plates with holes at the centers, and the pore size of the circular rigid plates is the same as the diameter of the axial rod 14.
The manufactured horizontal slider sleeve 4 is placed on the arc-shaped sliding surface inside the base 6, taking care that the bottom surface of the base 4 and the arc-shaped sliding surface inside the base 6 have the same radius of curvature. A counter spring 5 is placed in the inner cavity of the horizontal slider sleeve 4 and the curved axial rod 3 is placed on the counter spring 5. Wherein, the schematic diagram of the base 6 is shown in fig. 6.
After the vertical compression shock insulation spring 7 is placed in the base 6, the anti-swing linkage slide block 1 is placed on the curved axial rod 3. In addition, the bottom of the interlocking slide 1 can be inserted into an annular cavity at the bottom of the base 6. Note that the top plate 2 has been assembled with the anti-sway linkage slide 1 in this mounting step.
The vertical tension shock insulation spring 8 is placed on the top surface of the anti-swing linkage slide block 1, and the outer sleeve 9 and the base 6 are installed together through the bottom fixing bolts 10. To aid understanding, a three-dimensional exploded view of the mount is shown in fig. 7.
In this embodiment, the sliding surface between the top plate 2 and the curved axial rod 3, and the sliding surface between the curved axial rod 3 and the base 6 are coated with polytetrafluoroethylene friction material or other friction materials.
In this embodiment, the contact surface between the top plate 2 and the anti-swing linkage slide block1, the contact surface between the anti-swing linkage slide block1 and the base 6, the contact surface between the curved axial rod 3 and the horizontal slide block sleeve 4, and the contact surface between the outer sleeve 9 and the anti-swing linkage slide block1 are coated with lubricant.
In this embodiment, the coordination spring 5, the vertical compression shock-insulation spring 7 and the vertical tension shock-insulation spring 8 are coated with a lubricant, so as to ensure that no self-locking phenomenon occurs.
Examples
A self-resetting anti-sway three-dimensional shock insulation friction pendulum support, which is different from the first embodiment in that: in this embodiment, the coordinating spring 5 is a coil spring.
Examples
A self-resetting anti-sway three-dimensional shock insulation friction pendulum support, which is different from the first embodiment in that: in this embodiment, the coordination spring 5 is a belleville spring.
Examples
A self-resetting anti-sway three-dimensional shock insulation friction pendulum support, which is different from the first embodiment in that: in this embodiment, the tension shock-insulating spring 8 is eliminated. When the support is in tension, the outer sleeve 9 is in direct contact with the anti-swing linkage slide block 1, and vertical tension load is directly transferred to the outer sleeve 9.
It will be appreciated by those skilled in the art that a self-resetting anti-sway three-dimensional shock insulation friction pendulum support of the present invention comprises any combination of the various parts of the present specification. These combinations are not described in detail herein for brevity of description, but the scope of the present invention, which is formed by any combination of the parts of the present specification, is not to be construed as being limited to the embodiments provided herein, and thus is not to be repeated.
Claims (5)
1. A self-resetting anti-swing three-dimensional shock insulation friction pendulum support is characterized in that: the support consists of an anti-swing linkage slide block (1), a top plate (2), a curved axial rod (3), a horizontal slide block sleeve (4), a coordination spring (5), a base (6), a vertical compression shock insulation spring (7), a vertical tension shock insulation spring (8), an outer sleeve (9) and a bottom fixing bolt (10); wherein the base (6) is provided with two internal cavities, and one of the cavities is positioned close to the outer side; the other cavity is positioned at the center, and the bottom of the cavity at the center is a spherical sliding surface; the curved axial rod (3), the coordination spring (5) and the horizontal sliding block sleeve (4) are combined into a whole and then placed on a spherical sliding surface of the base (6); the vertical compression shock insulation spring (7) is arranged in the inner cavity at the outer side of the base (6); the anti-swing linkage slide block (1) and the top plate (2) are combined together and arranged on the top surface of the base (6) and the curved axial rod (3); the vertical tension shock insulation spring (8) is arranged on the top surface of the anti-swing linkage sliding block (1), and the outer sleeve (9) is fixed on the base (6) through the bottom fixing bolt (10);
The curved axial rod (3) is fixed together by an axial rod top plate (11), an axial rod upper plate (12), an axial rod lower plate (13) and an axial rod (14) in a welding mode, and the central axes of all parts are ensured to coincide when in welding; the axial rod top plate (11) is a curved surface rigid plate with a certain radian; the upper axial rod plate (12) and the lower axial rod plate (13) are round rigid plates with holes at the centers, and the pore size is the same as the diameter of the axial rod (14);
The horizontal sliding block sleeve (4) is obtained by welding an outer layer steel pipe (15) of a horizontal sliding block, an inner layer steel pipe (16) of the horizontal sliding block and a bottom plate of the horizontal sliding block together, and central shafts of all parts are overlapped during welding; the inner diameter of the horizontal sliding block outer layer steel pipe (15) is consistent with the outer diameter of the horizontal sliding block inner layer steel pipe (16), and the height of the horizontal sliding block outer layer steel pipe (15) is larger than that of the horizontal sliding block inner layer steel pipe (16); the horizontal sliding block bottom plate (17) is a curved surface steel plate with a certain radian and is circular;
The anti-swing linkage slide block (1) is formed by welding a linkage slide block top surface perforated steel plate (18), a linkage slide block second row perforated steel plate (19), a linkage slide block top steel pipe (20), a linkage slide block third row outer perforated steel plate (21), a linkage slide block third row inner steel plate (22) and a linkage slide block bottom steel pipe (23); wherein, the steel plate (18) with holes on the top surface of the linkage slide block and the steel plate (19) with holes on the second row of the linkage slide block clamp the steel pipe (20) on the top of the linkage slide block in the middle and are welded together, and the outer diameters of the other three are the same; then welding the linkage slide block third row outer side perforated steel plate (21) on the outer side surface of the linkage slide block bottom steel pipe (23), welding the linkage slide block third row inner side steel plate (22) in the linkage slide block bottom steel pipe (23), and ensuring that the linkage slide block third row outer side perforated steel plate (21) and the linkage slide block third row inner side steel plate (22) are positioned on the same plane; in addition, the inner diameter of the steel plate (21) with the holes on the outer side of the third row of the linkage slide blocks is the same as the outer diameter of the steel tube (23) at the bottom of the linkage slide blocks, and the outer diameter of the steel plate (22) on the inner side of the third row of the linkage slide blocks is the same as the inner diameter of the steel tube (23) at the bottom of the linkage slide blocks; the top surface perforated steel plate (18) of the linkage slide block, the second row perforated steel plate (19) of the linkage slide block, the third row outer perforated steel plate (21) of the linkage slide block and the third row inner steel plate (22) of the linkage slide block are round steel plates with central holes;
The top plate (2) is connected and fixed with the building structure supporting system, external load can be transmitted to the support, and when the top plate generates displacement components in the horizontal direction, certain friction exists on the contact surface between the top plate (2) and the curved axial rod (3), so that the horizontal load components can be transmitted to the curved axial rod (3); the inner diameter of the upper part and the inner diameter of the lower part in the inner cavity of the horizontal sliding block sleeve (4) are respectively the same as the outer diameters of an axial rod upper plate (12) and an axial rod lower plate (13) in the curved surface axial rod (3), so that horizontal load can be transmitted between the horizontal sliding block sleeve (4) and the curved surface axial rod (3) and relative linear displacement in the horizontal direction cannot be generated; friction exists on the contact surface between the horizontal sliding block sleeve (4) and the base (6), and relative sliding can be generated; when the external horizontal load component is input to the top plate (2), the horizontal load is mainly transmitted to the curved axial rod (3) in the form of friction force, then transmitted to the horizontal sliding block sleeve (4), and then transmitted to the base (6) through the friction force on the contact surface of the horizontal sliding block sleeve (4) and the base (6); because the contact surface between the top plate (2) and the curved axial rod (3) and the contact surface between the horizontal sliding block sleeve (4) and the base (6) are spherical sliding surfaces with a certain radian, when horizontal movement occurs, horizontal restoring force can be generated, and the restoring force is the self-restoring capability of the support; friction exists on the two pairs of contact surfaces, and part of mechanical energy can be converted into heat energy, so that the support is provided with a horizontal energy consumption function;
A coordination spring (5) is arranged between the curved axial rod (3) and the horizontal sliding block sleeve (4) and is used for enabling the curved axial rod (3) and the horizontal sliding block sleeve (4) to generate relative compression displacement, enabling the horizontal sliding block sleeve (4) to slide more smoothly and increasing coordination among all parts of the support; if the coordination spring (5) is not arranged, any relative displacement between the curved axial rod (3) and the horizontal sliding block sleeve (4) cannot occur, when the horizontal sliding block sleeve (4) horizontally moves, the horizontal sliding block sleeve (4) can drive the curved axial rod (3) to lift the top plate (2), the top surface of the curved axial rod (3) cannot be located in the original horizontal plane when the horizontal sliding block sleeve (4) moves, upward displacement is generated relative to the original horizontal plane, vertical load borne by the support is very large, most of the support is in a pressed state, the upward movement trend of the curved axial rod (3) can be limited, so that the sliding of the horizontal sliding block sleeve (4) is blocked, and finally the horizontal shock insulation and energy consumption capacity of the support are weakened; the coordination spring (5) which can be compressed can enable axial linear displacement to be generated between the curved surface axial rod (3) and the horizontal sliding block sleeve (4), so that the action of driving the curved surface axial rod (3) to lift upwards when the horizontal sliding block sleeve (4) moves is reduced, the sliding capacity of the horizontal sliding block sleeve (4) is increased, and the coordination of horizontal movement of the horizontal sliding block sleeve is ensured.
2. The self-resetting anti-sway three-dimensional vibration-isolation friction pendulum support of claim 1, wherein: when the anti-swing linkage slide block (1) is processed, the top plate (2) is arranged in the space at the upper part of the anti-swing linkage slide block, and then the anti-swing linkage slide block (1) is welded.
3. The self-resetting anti-sway three-dimensional vibration-isolation friction pendulum support of claim 1, wherein: when the horizontal component displacement of the top plate (2) is overlarge under the action of external horizontal load, the side surface of the top plate (2) can be contacted with the inner wall of the anti-swing linkage sliding block (1), the overlarge displacement is limited, and a certain protection effect can be achieved.
4. The self-resetting anti-sway three-dimensional vibration-isolation friction pendulum support of claim 1, wherein: when the top plate (2) receives an external vertical load component, the load is transmitted to the anti-swing linkage sliding block (1), and the vertical load component is transmitted to the base (6) by means of the vertical compression shock insulation spring (7); in addition, when the vertical displacement is too large, the bottom surface of the anti-swing linkage sliding block (1) can be directly contacted with the inner wall of the base (6), so that the excessive vertical displacement is limited, and the function of protecting the support is achieved.
5. The self-resetting anti-sway three-dimensional vibration-isolation friction pendulum support of claim 1, wherein:
When the top plate (2) is pulled under the action of external load, the anti-swing linkage sliding block (1) is driven to extrude the vertical tension shock insulation spring (8), the vertical tension shock insulation spring (8) transmits the vertical tension load to the outer sleeve (9), and the outer sleeve (9) transmits the load to the base (6) through the bottom fixing bolt (10); at the moment, the vertical tension shock insulation spring (8) is in a compression state, so that certain shock insulation and energy consumption capacity can be provided;
lubricants are coated on the contact surface between the top plate (2) and the anti-swing linkage slide block (1), the contact surface between the anti-swing linkage slide block (1) and the base (6), the contact surface between the curved axial rod (3) and the horizontal slide block sleeve (4) and the contact surface between the outer sleeve (9) and the anti-swing linkage slide block (1);
When the top plate (2) is subjected to bending moment, the movement trend of the top plate is that the top plate rotates around a certain horizontal axis; because the anti-swing linkage sliding block (1) and the base (6) are in contact with each other and can only generate relative vertical displacement and cannot generate relative rotation, the anti-swing linkage sliding block (1) can limit the rotation and swing of the top plate and transmit the bending moment load to the base (6);
the vertical compression shock insulation spring (7) and the vertical tension shock insulation spring (8) are annular springs, so that extremely large counter force can be provided when the springs are compressed, friction can be generated on a contact surface between the spring pairs, a part of mechanical energy is converted into heat energy, and the energy consumption effect can be achieved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211217418.9A CN115749406B (en) | 2022-10-03 | 2022-10-03 | Self-resetting anti-swing three-dimensional shock insulation friction pendulum support |
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| CN202211217418.9A CN115749406B (en) | 2022-10-03 | 2022-10-03 | Self-resetting anti-swing three-dimensional shock insulation friction pendulum support |
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| CN115749406A CN115749406A (en) | 2023-03-07 |
| CN115749406B true CN115749406B (en) | 2024-07-02 |
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| CN118498554B (en) * | 2024-07-18 | 2024-09-27 | 中裕铁信交通科技股份有限公司 | Double-guide type tensile anti-overturning shock insulation support |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604810A (en) * | 2017-08-04 | 2018-01-19 | 东南大学 | A kind of Self-resetting friction pendulum three-dimensional shock damping and insulation bearing |
| CN110093986A (en) * | 2019-05-31 | 2019-08-06 | 天津大学 | A kind of air spring-friction multidimensional shock insulation support |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204676415U (en) * | 2015-05-07 | 2015-09-30 | 河海大学 | A kind of three-dimensional shock isolation support |
| CN111962700A (en) * | 2020-08-04 | 2020-11-20 | 上海大学 | Anti-swing oblique three-dimensional shock isolation system |
| CN114045951A (en) * | 2021-10-11 | 2022-02-15 | 武汉工程大学 | Combined three-dimensional shock insulation or vibration isolation support for anti-pulling friction pendulum and thick-flesh rubber |
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| CN107604810A (en) * | 2017-08-04 | 2018-01-19 | 东南大学 | A kind of Self-resetting friction pendulum three-dimensional shock damping and insulation bearing |
| CN110093986A (en) * | 2019-05-31 | 2019-08-06 | 天津大学 | A kind of air spring-friction multidimensional shock insulation support |
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