High-sensitivity and high-durability damping and isolation support and application thereof

Abstract

The present application relates to a kind of high-sensitivity high durability vibration reduction isolation support, including pedestal, movable seat, vertical shear energy dissipation component;Vertical shear energy dissipation component includes multiple vertical stacked arrangement energy dissipation ring;Energy dissipation ring includes at least one side slide ring, side slide ring has two inclined surfaces symmetrically, and two inclined surfaces form arch at junction;Two inclined surfaces respectively abut on one sliding ring, and rubber layer is fixed between sliding ring inclined surface and side slide ring inclined surface;Vibration reduction isolation support is used as energy dissipation damper for use in energy dissipation vibration reduction engineering.The present application can generate greater interaction force between side slide ring and sliding ring when subjected to microseism / vibration, and rubber layer can generate more obvious extrusion shear deformation, so that the whole vibration reduction isolation support can generate more obvious vertical deformation, generate vertical vibration reduction isolation effect, and rubber layer can also generate considerable energy dissipation effect in extrusion shear deformation process, and has higher durability.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction and seismic isolation in engineering, and in particular to a highly sensitive and durable vibration reduction and seismic isolation bearing and its application. Background Technology

[0002] Seismic isolation technology has been applied to a certain extent in engineering fields such as construction, power, precision instruments, and transportation, achieving satisfactory results. With the continuous development of urbanization, these fields are gradually becoming more large-scale, denser, and more complex, which brings new challenges. Current seismic isolation technology mainly targets vibrations with large responses, such as earthquakes, wind vibrations, and impact vibrations, which may cause damage or destruction to engineering structures. However, with further urbanization, engineering projects are facing more problems caused by micro-vibrations. Micro-vibrations mainly include micro-earthquakes, traffic vibrations, and mechanical vibrations, characterized by small responses and high frequency. Although micro-vibrations do not cause obvious damage to engineering structures, they can affect people's daily lives and the normal use of precision instruments. Current vibration control technologies, such as rubber vibration isolation bearings, steel spring vibration isolation bearings, viscous dampers, friction dampers, and inertial containers, all require a large input vibration response to produce deformation and thus exert a vibration control effect. However, they do not produce significant deformation when faced with micro-vibrations, so the vibration control effect is not obvious. At the same time, since micro-vibrations occur frequently, the durability requirements of vibration control devices are also high.

[0003] In summary, existing vibration control technologies cannot provide significant isolation or energy dissipation effects when dealing with micro-vibrations. Therefore, there is an urgent need to develop new types of vibration isolation bearings that can perform vibration control under small responses and have high durability. Summary of the Invention

[0004] The purpose of this application is to provide a highly sensitive and durable vibration reduction and isolation bearing and its application, aiming to solve the problems existing in the prior art.

[0005] This application provides a highly sensitive and durable vibration damping and isolation bearing, comprising:

[0006] The base is fixedly installed on the ground.

[0007] A movable seat, the lower end of which is movably installed within the base, and the movable seat can move up and down relative to the base;

[0008] A vertical shear energy-dissipating component, with one end abutting against a base and the other end abutting against a movable seat, comprises multiple vertically stacked energy-dissipating rings. Each energy-dissipating ring includes at least one side sliding ring, which has two symmetrical inclined surfaces, and the two inclined surfaces form an arch at their junction. Each of the two inclined surfaces abuts against a sliding ring, which has an inclined surface that matches the slope of the side sliding ring. The sliding ring and the side sliding ring are fitted together through the inclined surfaces, and a rubber layer is fixed between the inclined surfaces of the sliding ring and the side sliding ring. The two sliding rings do not contact each other, and both sliding rings protrude from the upper and lower surfaces of the side sliding ring. Between two adjacent energy-dissipating rings, the sliding rings abut against each other.

[0009] Furthermore, the base includes a base plate and a sleeve fixed together. The sleeve has a movable cavity inside, the top of the sleeve has an insertion port communicating with the movable cavity, and the bottom of the sleeve has a receiving groove. The diameters of the insertion port and the receiving groove are both smaller than the inner diameter of the movable cavity.

[0010] The movable seat includes a top plate and a vertical fixing rod fixed together. The vertical fixing rod is T-shaped, and an upper stop block and a lower stop block with an increased diameter are fixed at the upper and lower ends of the vertical rod. The vertical rod is inserted into the movable cavity through the insertion port, with the upper stop block located in the insertion port and the lower stop block located in the receiving groove. A pressure-bearing pad is provided below the upper stop block and above the lower stop block. The vertical shear energy dissipation component is installed on the vertical fixing rod between the upper and lower pressure-bearing pads, and the vertical shear energy dissipation component abuts against the two pressure-bearing pads.

[0011] Furthermore, the receiving groove has a depth that satisfies the distance the lower stop block can move up and down within the receiving groove.

[0012] Furthermore, the sleeve includes an upper sleeve and a lower sleeve, which are connected by threads. The insertion port is located on the axial portion of the upper sleeve, and the receiving cavity is located on the axial portion of the lower sleeve. The lower sleeve is fixedly connected to the base plate by bolts. The bottom of the upper sleeve is spaced from the bottom of the movable cavity. The two pressure pads have the same inner diameter. The outer diameter of the upper pressure pad matches the inner diameter of the upper sleeve, and the outer diameter of the lower pressure pad matches the inner diameter of the lower sleeve. The thickness of the lower pressure pad is less than the gap between the bottom of the upper sleeve and the bottom of the movable cavity.

[0013] Furthermore, the vertical fixing rod is fixedly connected to the top plate by bolts.

[0014] Furthermore, there are two side sliding rings, namely an outer sliding ring and an inner sliding ring. The outer sliding ring and the inner sliding ring have inclined surfaces on their opposite sides. The sliding ring abuts between the outer sliding ring and the inner sliding ring. Both sides of the sliding ring have inclined surfaces corresponding to the outer sliding ring and the inner sliding ring, so that the cross-section of the sliding ring is an isosceles trapezoid.

[0015] Furthermore, there is one side slip ring, the sliding ring is located inside the side slip ring, and the outer surface of the sliding ring is an inclined surface, so that the cross-section of the sliding ring is a right trapezoid.

[0016] Furthermore, the rubber layer is wrapped around the side slip ring or the rubber layer is wrapped around the sliding ring.

[0017] An application of a vibration damping and seismic isolation bearing: when the number of energy dissipation rings is 1-5, the vibration damping and seismic isolation bearing is used in seismic isolation engineering; when the number of energy dissipation rings is 6 or more, the vibration damping and seismic isolation bearing is used as an energy dissipation damper in energy dissipation and vibration reduction engineering.

[0018] The beneficial effects of this invention are:

[0019] 1. The vibration damping and seismic isolation bearing provided by the present invention can provide a large vertical bearing capacity when subjected to vertical static load by the vertical shear energy dissipation component in the bearing; when subjected to micro-vibration, a large interaction force can be generated between the side slip ring and the sliding ring in the vertical shear energy dissipation component, and the rubber layer therein will undergo significant extrusion shear deformation under this force. Therefore, the entire vibration damping and seismic isolation bearing will undergo significant vertical deformation, thereby producing a considerable vertical seismic isolation effect. The rubber layer will also produce a considerable energy dissipation effect during the extrusion shear deformation process.

[0020] 2. The vibration reduction and isolation bearing provided by the present invention has strong load durability in its side slip ring, sliding ring and rubber layer, so the entire vibration isolation bearing also has high durability performance.

[0021] 3. The vibration reduction and seismic isolation bearing provided by the present invention can not only be used in engineering to isolate micro-vibrations, but also, when the number of vertical shear energy dissipation components is large and the height is high, the seismic isolation bearing can act as an energy dissipation damper in energy dissipation and vibration reduction engineering. The vibration reduction and seismic isolation bearing can be used in series with the horizontal seismic isolation bearing to become a three-dimensional seismic isolation bearing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall cross-sectional structure of Embodiment 1 of the present invention.

[0023] Figure 2 This is a schematic diagram of the vertical fixing rod of the present invention.

[0024] Figure 3 This is a cross-sectional schematic diagram of the energy dissipation ring in Embodiment 1 of the present invention.

[0025] Figure 4 This is a schematic diagram of the energy dissipation ring in Embodiment 1 of the present invention.

[0026] Figure 5This is a schematic diagram of the state of the vibration reduction and isolation bearing under compression in Embodiment 1 of the present invention.

[0027] Figure 6 This is a schematic diagram of the state of the energy dissipation ring under downward pressure in Embodiment 1 of the present invention.

[0028] Figure 7 This is a schematic diagram of the state of the vibration reduction and seismic isolation support under tension in Embodiment 1 of the present invention.

[0029] Figure 8 This is a schematic diagram of the state of the energy dissipation ring when it is pulled upward in Embodiment 1 of the present invention.

[0030] Figure 9 This is a schematic diagram of the cross-sectional structure of the vibration reduction and seismic isolation bearing in Embodiment 2 of the present invention.

[0031] Figure 10 This is a schematic diagram of the energy dissipation ring in Embodiment 2 of the present invention.

[0032] Figure 11 This is a schematic diagram of the cross-sectional structure of the vibration reduction and seismic isolation bearing in Embodiment 3 of the present invention.

[0033] Figure 12 This is a schematic diagram of the energy dissipation ring in Embodiment 3 of the present invention.

[0034] Figure 13 This is a schematic diagram of the cross-sectional structure of the vibration reduction and seismic isolation bearing in Embodiment 4 of the present invention.

[0035] Figure 14 This is a schematic diagram of the energy dissipation ring in Embodiment 4 of the present invention.

[0036] Figure 15 This is a schematic diagram of the cross-sectional structure of the shear energy dissipation damper in Embodiment 5 of the present invention.

[0037] In the picture:

[0038] 1. Base; 11. Base plate; 12. Upper sleeve; 13. Lower sleeve; 14. Movable cavity; 15. Insert; 16. Receiving groove; 2. Movable seat; 21. Top plate; 22. Vertical fixing rod; 23. Upper stop block; 24. Lower stop block; 3. Vertical shear energy dissipation component; 31. Side slip ring; 311. Outer slip ring; 312. Inner slip ring; 32. Sliding ring; 33. Rubber layer; 4. Pressure bearing pad. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] like Figures 1-8 The present invention relates to a highly sensitive and durable vibration reduction and isolation bearing, comprising: a base 1, a movable base 2, and a vertical shear energy dissipation component 3.

[0042] The vertical shear energy dissipation component 3 has one end abutting against the base 1 and the other end abutting against the movable seat 2, separating the base 1 and the movable seat 2. The vertical shear energy dissipation component 3 includes multiple vertically stacked energy dissipation rings. Each energy dissipation ring includes a side sliding ring with two symmetrical inclined surfaces, forming an arch at their junction. Each of the two inclined surfaces abuts against a sliding ring 32, which has an inclined surface matching the slope of the side sliding ring. The sliding ring 32 and the side sliding ring are fitted together by the inclined surfaces, and a rubber layer 33 is fixed between the inclined surfaces of the sliding ring 32 and the side sliding ring. The upper and lower sliding rings 32 do not contact each other, and both sliding rings 32 protrude from the upper and lower surfaces of the side sliding ring; adjacent energy dissipation rings abut against each other.

[0043] In this embodiment, as Figure 3 and Figure 4 As shown, there are two side slip rings, an outer slip ring 311 and an inner slip ring 312. The outer slip ring 311 and the inner slip ring 312 have inclined surfaces on their opposite sides. The sliding ring 32 abuts between the outer slip ring 311 and the inner slip ring 312. Both sides of the sliding ring 32 have inclined surfaces corresponding to the outer slip ring 311 and the inner slip ring 312, making the cross-section of the sliding ring 32 an isosceles trapezoid. The rubber layer 33 is bonded to the side slip rings by vulcanization. Preferably, both the side slip rings and the sliding rings are steel rings.

[0044] The base 1 includes a base plate 11 and a sleeve fixed together. The base plate 11 is fixedly installed on the ground. The sleeve has a movable cavity 14. The sleeve includes an upper sleeve 12 and a lower sleeve 13. The upper sleeve 12 and the lower sleeve 13 are connected by threads. The shaft portion of the upper sleeve 12 has an insertion port 15 communicating with the movable cavity 14. The bottom shaft portion of the lower sleeve 13 has a receiving groove 16. The diameters of both the insertion port 15 and the receiving groove 16 are smaller than the inner diameter of the movable cavity 14. The lower sleeve 13 is fixedly connected to the base plate 11 by bolts. The bottom of the upper sleeve 12 is spaced from the bottom of the movable cavity 14.

[0045] The movable seat 2 includes a top plate 21 and a vertical fixing rod 22 fixed together. The vertical fixing rod 22 is bolted to the top plate 21. The vertical fixing rod 22 is T-shaped, and its upper and lower ends are fixed with an upper stop block 23 and a lower stop block 24 of increased diameter. The lower stop block 24 can be a nut, which is threaded onto the vertical fixing rod 22. The vertical rod 22 is inserted into the movable cavity 14 through the insertion port 15, with the upper stop block 23 located in the insertion port 15 and the lower stop block 24 located in the receiving groove 16. The receiving groove 16 has a depth that allows the lower stop block 24 to move up and down within it. A pressure-bearing pad 4 is provided below the upper stop block 23 and above the lower stop block 24. The two pressure-bearing pads 4 have the same inner diameter. The outer diameter of the upper pressure-bearing pad 4 matches the inner diameter of the upper sleeve 12, and the outer diameter of the lower pressure-bearing pad 4 matches the inner diameter of the lower sleeve 13. The thickness of the lower pressure-bearing pad 4 is less than the distance between the bottom of the upper sleeve 12 and the bottom of the movable cavity 14. Combined with the diameter of the insertion port 15 and the receiving groove 16, it can be ensured that the pressure-bearing pad 4 is always confined in the movable cavity 14.

[0046] The vertical shear energy dissipation component 3 is installed on the vertical fixing rod 22 between the upper and lower pressure pads 4, and the vertical shear energy dissipation component 3 abuts against the two pressure pads 4.

[0047] During assembly, first, the vertical fixing rod 22 is fitted with the upper sleeve 12, the vertical shear energy dissipation component 3, and the pressure-bearing gasket. Then, the lower stop 24 (nut) is screwed onto the vertical fixing rod 22 via threads. Finally, the lower sleeve 13 is screwed onto the upper sleeve 12 via threads to complete the assembly of the entire support. Thus, the vertical fixing rod 22 and the pressure-bearing gasket work together to ensure that the vertical shear energy dissipation component 3 is under pressure when the vertical fixing rod 22 moves up and down.

[0048] like Figure 5 and Figure 6As shown, when the support is subjected to vertical pressure during micro-vibration, the top plate 21 will drive the vertical fixing rod 22 to move downward, thereby coordinating with the upper pressure-bearing pad to put the vertical shear energy dissipation component 3 under downward pressure. The upper sliding ring 32 in the top energy dissipation ring moves vertically downward, causing the rubber layers 33 in contact on both sides to be compressed and sheared. This compression force is then transmitted to the outer sliding ring 311 and the inner sliding ring 312. The outer sliding ring 311 and the inner sliding ring 312 continue to transmit the compression force downward, causing the rubber layer 33 on the lower slope to be compressed and sheared, which is then transmitted to the lower sliding ring 32. This force is then transmitted to the upper sliding ring 32 in the next energy dissipation ring, and the process repeats. During this process, the vertical shear energy dissipation component 3 can produce a significant vibration isolation effect, and the rubber layer 33 generates energy dissipation during the compression and shearing process. Simultaneously, the vertical shear energy dissipation component 3 as a whole generates a vertically upward reaction force, providing self-resetting capability and upward support.

[0049] like Figure 7 and Figure 8 As shown, when the support is subjected to vertical tension during micro-vibration, the top plate 21 will drive the vertical fixing rod 22 to move upward, coordinating with the lower bearing pad to put the vertical shear energy dissipation component 3 in an upward compressed state. The lower sliding block in the bottom energy dissipation ring moves vertically upward, causing the rubber layer 33 in contact on both sides to be compressed and sheared. This compression force is then transmitted to the outer sliding ring 311 and the inner sliding ring 312. The outer sliding ring 311 and the inner sliding ring 312 continue to transmit the compression force upward, causing the rubber layer 33 on the upper inclined surface to be compressed and sheared, which is then transmitted to the upper sliding ring 32. This force is then transmitted to the lower sliding ring 32 in the next energy dissipation ring, and the process repeats. During this process, the vertical shear energy dissipation component 3 can produce a significant vibration isolation effect, and the rubber layer 33 generates energy dissipation during the compression and shearing process. Simultaneously, the entire vertical shear energy dissipation component 3 generates a vertically downward reaction force, providing self-resetting capability.

[0050] This embodiment is preferred because it takes into account the characteristics of large scale, high density, and complexity of the application engineering objects. This form has a large load-bearing capacity, strong seismic isolation capacity during micro-vibrations, strong energy dissipation capacity, large restoring force, and small deformation. Moreover, those skilled in the art can flexibly design it according to the actual needs of different building types.

[0051] Example 2

[0052] like Figures 9-10 As shown, the difference from Embodiment 1 is that there is only one side slip ring 31, and the sliding ring 32 is located inside the side slip ring. The outer surface of the sliding ring 32 is a bevel, making the cross-section of the sliding ring 32 a right trapezoid. This allows the support as a whole to have lower cost and greater deformation capacity.

[0053] Example 3

[0054] like Figure 11 and Figure 12 As shown, the difference from Example 2 is that the rubber layer 33 is bonded to the surface of the sliding ring 32 by vulcanization. This method can also achieve lower cost and greater deformability.

[0055] Example 4

[0056] like Figure 13 and Figure 14 As shown, the difference from Embodiment 1 is that the rubber layer 33 is bonded to the surface of the sliding ring 32 by vulcanization, and this design can only pursue lower cost.

[0057] Example 5

[0058] When the number of energy dissipation rings is 1-5, the vibration damping and isolation bearing is used in seismic isolation engineering. When the number of energy dissipation rings is 6 or more, the vibration damping and isolation bearing is used as an energy dissipation damper in energy dissipation and vibration reduction engineering, such as... Figure 15 As shown.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

Claims

1. A highly sensitive and durable vibration damping and seismic isolation bearing, characterized in that, include: The base is fixedly installed on the ground. A movable seat, the lower end of which is movably installed within the base, and the movable seat can move up and down relative to the base; A vertical shear energy-dissipating component, with one end abutting against a base and the other end abutting against a movable seat, comprises multiple vertically stacked energy-dissipating rings; each energy-dissipating ring includes at least one side sliding ring, which has two symmetrical inclined surfaces, and the two inclined surfaces form an arch at their junction; each of the two inclined surfaces abuts against a sliding ring, and the sliding ring has an inclined surface that matches the slope of the side sliding ring. The sliding ring and the side sliding ring are fitted together through the inclined surfaces, and a rubber layer is fixed between the inclined surfaces of the sliding ring and the side sliding ring; the two sliding rings do not contact each other, and both sliding rings protrude from the upper and lower surfaces of the side sliding ring; between two adjacent energy-dissipating rings, the sliding rings abut against each other; The base includes a base plate and a sleeve fixed together. The sleeve has a movable cavity inside, the top of the sleeve has an insertion port communicating with the movable cavity, and the bottom of the sleeve has a receiving groove. The diameters of the insertion port and the receiving groove are both smaller than the inner diameter of the movable cavity. The movable seat includes a top plate and a vertical fixing rod fixed together. The vertical fixing rod is T-shaped, and an upper stop block and a lower stop block with an increased diameter are fixed at the upper and lower ends of the vertical rod. The vertical rod is inserted into the movable cavity from the insertion port, with the upper stop block located in the insertion port and the lower stop block located in the receiving groove. A pressure-bearing pad is provided below the upper block and above the lower block. The vertical shear energy dissipation component is installed on the vertical fixing rod between the upper and lower pressure-bearing pads, and the vertical shear energy dissipation component abuts against the two pressure-bearing pads.

2. The high-sensitivity and high-durability vibration damping and isolation bearing according to claim 1, characterized in that, The receiving groove has a depth that is sufficient to allow the lower stop block to move up and down within the receiving groove.

3. The high-sensitivity and high-durability vibration damping and isolation bearing according to claim 1, characterized in that, The sleeve includes an upper sleeve and a lower sleeve, which are connected by threads. The insertion port is located on the shaft of the upper sleeve, and the receiving groove is located on the shaft of the lower sleeve. The lower sleeve is fixedly connected to the base plate by bolts. The bottom of the upper sleeve is spaced from the bottom of the movable cavity. The two pressure pads have the same inner diameter. The outer diameter of the upper pressure pad matches the inner diameter of the upper sleeve, and the outer diameter of the lower pressure pad matches the inner diameter of the lower sleeve. The thickness of the lower pressure pad is less than the gap between the bottom of the upper sleeve and the bottom of the movable cavity.

4. The high-sensitivity and high-durability vibration damping and isolation bearing according to claim 1, characterized in that, The vertical fixing rod is fixedly connected to the top plate by bolts.

5. The high-sensitivity and high-durability vibration damping and isolation bearing according to claim 1, characterized in that, There are two side sliding rings, namely an outer sliding ring and an inner sliding ring. The outer sliding ring and the inner sliding ring have inclined surfaces on their opposite sides. The sliding ring abuts between the outer sliding ring and the inner sliding ring. Both sides of the sliding ring have inclined surfaces corresponding to the outer sliding ring and the inner sliding ring, so that the cross-section of the sliding ring is an isosceles trapezoid.

6. The high-sensitivity and high-durability vibration damping and isolation bearing according to claim 1, characterized in that, There is one side slip ring, the sliding ring is located inside the side slip ring, and the outer surface of the sliding ring is an inclined surface, so that the cross-section of the sliding ring is a right trapezoid.

7. The high-sensitivity and high-durability vibration damping and isolation bearing according to claim 1, characterized in that, The rubber layer is wrapped around the side slip ring or the rubber layer is wrapped around the sliding ring.

8. An application of the vibration damping and seismic isolation bearing as described in claim 1, characterized in that, When the number of energy dissipation rings is 1-5, the vibration damping and seismic isolation bearing is used in seismic isolation projects; when the number of energy dissipation rings is 6 or more, the vibration damping and seismic isolation bearing is used as an energy dissipation damper in energy dissipation and vibration reduction projects.

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