CN220378772U - High damping lamination rubber belleville spring device and structure - Google Patents
High damping lamination rubber belleville spring device and structure Download PDFInfo
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- CN220378772U CN220378772U CN202321630792.1U CN202321630792U CN220378772U CN 220378772 U CN220378772 U CN 220378772U CN 202321630792 U CN202321630792 U CN 202321630792U CN 220378772 U CN220378772 U CN 220378772U
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- 238000013016 damping Methods 0.000 title claims abstract description 120
- 238000003475 lamination Methods 0.000 title description 3
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 6
- 230000035939 shock Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model discloses a high damping laminated rubber belleville spring device and a structure, wherein the device comprises an upper loading ring, a high damping annular rubber layer, a metal constraint ring and a lower loading ring which are all in a uniform height tubular shape; the metal constraint ring and the high damping annular rubber layer are alternately overlapped and tightly adhered between the upper loading ring and the lower loading ring in a coaxial way, and the upper loading ring and the lower loading ring are tightly adhered with the high damping rubber layer; the high damping laminated rubber disc spring device is hollow round table-shaped. The utility model mainly utilizes self damping of the high damping rubber material to dissipate vibration energy while the belleville spring is deformed. When the high-damping laminated rubber belleville spring device is deformed under load, the rubber layer provides a counter force parallel to the load bearing direction due to shear deformation, and simultaneously provides a counter force perpendicular to the load bearing direction due to compression deformation. Due to the nonlinear geometrical deformation principle, a force component perpendicular to the load bearing direction can provide a nonlinear negative stiffness to the system.
Description
Technical Field
The utility model relates to the technical field of earthquake disaster protection and structural vibration control, in particular to a high-damping laminated rubber belleville spring device and a structure.
Background
In the field of earthquake protection engineering, a shock absorbing and shock isolating device based on a negative stiffness or variable stiffness principle attracts a great deal of attention in recent years. For the shock absorbing device, a negative stiffness member is introduced to help achieve early 'pseudo yield' of the structural member to reduce seismic effects; for the vibration isolation device, the negative stiffness spring is added on the basis of the existing device, so that the vibration isolation starting frequency can be reduced, and the broad-spectrum vibration isolation effect can be realized.
The key core technology in designing such devices is to construct a negative stiffness mechanism. At present, a device which is more studied is a negative stiffness device based on a pre-pressed spiral spring. The device has the defects of oversized components, limited negative rigidity force, no additional damping energy consumption and difficult application in practical engineering. The negative stiffness device based on the metal belleville springs is also proposed by the scholars, the device has smaller size and larger force, however, the friction force of the contact interface is overlarge, so that the effect of reducing the dynamic stiffness of the structure is difficult to realize, and the practical working effect is limited.
Disclosure of Invention
The utility model provides a high damping laminated rubber belleville spring device and a structure, which are used for solving the technical problems of the negative stiffness device in the prior art. The utility model aims to provide bearing capacity and negative rigidity for a structure or a device through geometric nonlinear deformation of a high damping rubber layer during bearing; additional damping energy consumption is provided by the damping characteristics of the high damping rubber material. The utility model can be applied to the construction of different types of damping and shock-isolating devices based on complex stiffness characteristics.
The technical scheme adopted by the utility model is as follows: the high damping laminated rubber belleville spring device comprises an upper loading ring, a high damping annular rubber layer, a metal constraint ring and a lower loading ring which are all in a uniform height tubular shape; the metal constraint ring and the high damping annular rubber layer are alternately overlapped and tightly adhered between the upper loading ring and the lower loading ring in a coaxial way, and the upper loading ring and the lower loading ring are tightly adhered with the high damping rubber layer; the high damping laminated rubber disc spring device is hollow round table-shaped.
Further, the metal constraint ring is made of low-carbon steel.
Furthermore, the upper loading ring and the lower loading ring are made of low carbon steel.
Furthermore, the top surfaces and the bottom surfaces of the metal constraint ring and the high damping annular rubber layer are inclined surfaces with the same inclination angle.
Further, the upper loading ring is positioned at the innermost layer of the high-damping laminated rubber belleville spring device, and the middle part of the upper loading ring is provided with a threaded hole along the axial direction.
The utility model also provides a high-damping laminated rubber belleville spring structure, which comprises at least two high-damping laminated rubber belleville spring devices, wherein the at least two high-damping laminated rubber belleville spring devices are adhered together in the same direction.
The utility model also provides a high-damping laminated rubber belleville spring structure, which comprises a pair of opposite inner connecting rings and two high-damping laminated rubber belleville spring devices, wherein the opposite inner connecting rings are fixedly arranged between the two oppositely arranged high-damping laminated rubber belleville spring devices.
Furthermore, the involution inner connecting ring and the two high damping laminated rubber belleville spring devices are fixedly installed through bolts.
The utility model also provides a high-damping laminated rubber belleville spring structure, which comprises two involution inner connecting rings, one involution outer connecting ring and four high-damping laminated rubber belleville spring devices, wherein the two involution inner connecting rings are respectively arranged between the two pairwise arranged high-damping laminated rubber belleville spring devices, the involution outer connecting rings are positioned in the middle of the high-damping laminated rubber belleville spring structure, and the involution inner connecting rings, the involution outer connecting rings and the high-damping laminated rubber belleville spring devices are all coaxially arranged.
The beneficial effects of the utility model are as follows:
the utility model mainly utilizes self damping of the high damping rubber material to dissipate vibration energy while the belleville spring is deformed. When the high-damping laminated rubber belleville spring device is deformed under load, the rubber layer provides a counter force parallel to the load bearing direction due to shear deformation, and simultaneously provides a counter force perpendicular to the load bearing direction due to compression deformation. Due to the nonlinear geometrical deformation principle, a force component perpendicular to the load bearing direction can provide a nonlinear negative stiffness to the system. Based on this, the present utility model is suitable for constructing a shock absorbing and shock insulating device based on a negative stiffness mechanism, and can provide excellent vibration control effects.
Drawings
FIG. 1a is a schematic diagram of a high damping laminated rubber belleville spring device of the present disclosure;
FIG. 1b is a cross-sectional view of a high damping laminated rubber belleville spring apparatus of the present disclosure;
FIG. 2a is a schematic diagram of a stacked configuration of two high damping stacked rubber belleville spring devices in accordance with the present disclosure;
FIG. 2b is a cross-sectional view of a stack of two high damping stacked rubber belleville spring devices in accordance with the present disclosure;
FIG. 3a is a schematic illustration of the alignment of two highly damped laminated rubber belleville spring devices of the present disclosure;
FIG. 3b is a cross-sectional view of a two-piece high damping laminated rubber belleville spring assembly of the present disclosure;
FIG. 4a is a schematic illustration of the mating structure of the four high damping laminated rubber belleville spring arrangements of the present disclosure;
FIG. 4b is a cross-sectional view of a pair of four high damping laminated rubber belleville springs of the present disclosure.
Reference numerals: the high damping annular rubber layer is 1-high damping annular rubber layer, the metal constraint ring is 2-high damping annular rubber layer, the upper loading ring is 3-high damping annular rubber layer, the upper loading ring is 31-high damping annular rubber layer is 4-high damping annular rubber layer, the lower loading ring is 5-involution inner connecting ring is 51-involution inner connecting ring threaded hole, and the outer involution outer connecting ring is 6-involution inner connecting ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings, but embodiments of the present utility model are not limited thereto. It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1:
referring to fig. 1a to 1b, the present embodiment discloses a high damping laminated rubber belleville spring device including an upper loading ring 3, a high damping annular rubber layer 1, a metal constraint ring 2 and a lower loading ring 4, which are all of equal height tubular shape (i.e., of equal height tubular structure); the metal constraint ring 2 and the high damping annular rubber layer 1 are alternately overlapped and tightly adhered between the upper loading ring 3 and the lower loading ring 4 coaxially, and the upper loading ring 3 and the lower loading ring 4 are tightly adhered with the high damping rubber layer; the high damping laminated rubber disc spring device is hollow round table-shaped.
Specifically, the metal constraint ring 2 is provided for the purpose of constraining the rubber material of the bonding interface, carrying and transmitting the shearing force and the axial force inside the belleville springs, and preventing the rubber material from buckling under pressure.
The upper loading ring 3 and the lower loading ring 4 are tightly adhered to the high damping rubber layer, so that the rubber material is restrained on one hand, and the load applied by the belleville springs and the external structure is transferred on the other hand. Specifically, the upper loading ring 3 is disposed inside the laminated belleville springs, and has a certain thickness to ensure that the horizontal end surface has a certain bearing area. The upper loading ring 3 serves on the one hand to constrain the high damping rubber layer and on the other hand to transmit external loads or to perform a butt-joint combination between the belleville springs, achieving a series loading between the belleville springs (see fig. 3 a-3 b). The lower loading ring 4 is arranged outside the laminated disc spring and has a certain thickness so as to ensure a certain bearing area of the horizontal end surface. The lower loading ring 4 serves on the one hand to constrain the high damping rubber layer and on the other hand to transmit external loads or to carry out a superimposed combination between the belleville springs, achieving parallel loading between the belleville springs (see fig. 2 a-2 b).
Preferably, the metal constraint ring 2, the upper loading ring 3 and the lower loading ring 4 are made of low carbon steel. The low-carbon steel is carbon steel with carbon content lower than 0.25%, and is also called soft steel because of low strength and low hardness.
Preferably, the top surfaces and the bottom surfaces of the metal constraint ring 2 and the high damping annular rubber layer 1 are inclined surfaces with the same inclination angle, so that after the metal constraint ring 2 and the high damping annular rubber layer 1 are alternately overlapped together, the top surfaces and the bottom surfaces of the metal constraint ring 2 and the high damping annular rubber layer 1 are inclined surfaces, and the metal constraint ring 2 and the high damping annular rubber layer 1 can be completely attached to each other while being more attractive.
Preferably, the upper loading ring 3 is positioned at the innermost layer of the high damping laminated rubber belleville spring device, and the middle part of the upper loading ring is provided with a threaded hole along the axial direction, so that the upper loading ring is conveniently connected and fixed through bolts.
Preferably, the thickness of the high damping rubber layer can be designed according to the actual requirements of projects so as to obtain different bearing and energy consumption capacities; designing the inner cone height of the high damping rubber layer to obtain different deformability and nonlinear stiffness characteristics; the thickness of the metal constraint ring 2 is designed to ensure that the metal ring does not generate buckling deformation in the normal use range; the bearing capacity and the energy consumption capacity of the disc spring group can be multiplied by overlapping and installing a plurality of disc springs (namely the high damping laminated rubber disc spring device), or the deformation capacity and the energy consumption capacity of the disc spring group can be multiplied by involuting and installing a plurality of disc springs.
The embodiment adopts high damping rubber material and adopts a laminated structure to provide a novel belleville spring device. Providing a certain vertical bearing capacity by utilizing the shearing counterforce provided by the high damping annular rubber layer 1; providing nonlinear negative stiffness by utilizing the compressive counter force provided by the high damping annular rubber layer 1; the self-damping of the high damping rubber material is utilized to provide additional damping energy consumption.
Example 2:
referring to fig. 2 a-2 b, the present embodiment discloses a high damping laminated rubber belleville spring structure, which includes at least two high damping laminated rubber belleville spring devices described in embodiment 1, and at least two high damping laminated rubber belleville spring devices are adhered together in the same direction.
Referring to fig. 2 a-2 b, the schematic diagram is a schematic diagram of the use of two high-damping laminated rubber belleville spring devices in a vertically overlapped mode (i.e. in the same direction), and the number of the high-damping laminated rubber belleville spring devices in the overlapped mode can be designed according to actual bearing and energy consumption requirements of engineering. When stacked, the uppermost upper load ring 3 and the lowermost lower load ring 4 transmit external loads. When the disc springs are used in superposition, the bearing capacity and the energy consumption are multiplied. The situation when the high damping laminated rubber belleville spring arrangements are stacked one above the other is similar to that described above.
Example 3:
referring to fig. 3 a-3 b, this embodiment discloses a high damping laminated rubber belleville spring structure, which comprises a pair of opposite inner connecting rings 5 and two high damping laminated rubber belleville spring devices described in embodiment 1, wherein the opposite inner connecting rings 5 are fixedly installed between the two opposite high damping laminated rubber belleville spring devices.
Referring to fig. 3 a-3 b, the schematic diagram is a schematic diagram of the use of two high damping laminated rubber belleville spring devices in butt joint (i.e. opposite arrangement), and the number of the high damping laminated rubber belleville spring devices in butt joint can be designed according to actual engineering requirements. When the load bearing device is used in a closing way, the uppermost lower loading ring 4 and the lowermost lower loading ring 4 transmit external loads.
When the high damping laminated rubber belleville spring device is used in a butt joint mode, a butt joint inner connecting ring 5 is arranged between the high damping laminated rubber belleville spring devices, and a butt joint inner connecting ring threaded hole 51 is formed in the middle of the butt joint inner connecting ring 5. The upper load ring 3 is provided with an upper load ring inner threaded hole 31. The loading ring 3 and the involution inner connecting ring 5 are connected through bolts, so that the fixing and limiting effects are achieved.
Example 4:
referring to fig. 4 a-4 b, this embodiment discloses a high damping laminated rubber belleville spring structure, which includes two opposite inner connecting rings 5, one opposite outer connecting ring 6 and four high damping laminated rubber belleville spring devices according to embodiment 1, wherein the two opposite inner connecting rings 5 are respectively disposed between the two opposite high damping laminated rubber belleville spring devices, the opposite outer connecting ring 6 is disposed in the middle of the high damping laminated rubber belleville spring structure, and the opposite inner connecting rings 5, the opposite outer connecting rings 6 and the high damping laminated rubber belleville spring devices are all disposed coaxially.
Referring to fig. 4 a-4 b, this schematic is an illustration of the use of four high damping laminated rubber belleville spring arrangements in combination. On the basis of two involutions, an involution outer connecting ring 6 is arranged in the middle, so that the functions of limiting and fixing and providing a deformation space for the belleville springs are achieved. When the belleville springs are used in involution, the deformation capacity and the energy consumption capacity are improved by times.
When multiple high damping laminated rubber belleville spring arrangements are stacked, the situation is similar to that described in fig. 3 and 4. The multi-piece lamination and multi-piece involution of the high damping laminated rubber belleville spring device can be used in combination with the design.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The high damping laminated rubber belleville spring device is characterized by comprising an upper loading ring, a high damping annular rubber layer, a metal constraint ring and a lower loading ring which are all in a uniform height tube shape; the metal constraint ring and the high damping annular rubber layer are alternately overlapped and tightly adhered between the upper loading ring and the lower loading ring in a coaxial way, and the upper loading ring and the lower loading ring are tightly adhered with the high damping rubber layer; the high damping laminated rubber disc spring device is hollow round table-shaped.
2. The high damping laminated rubber belleville spring arrangement of claim 1, wherein the metal confinement ring is a low carbon steel material.
3. The high damping laminated rubber belleville spring arrangement of claim 1, wherein the upper load ring and the lower load ring are both low carbon steel.
4. The high damping laminated rubber belleville spring arrangement of claim 1 wherein the top and bottom surfaces of the metal confinement ring and the high damping annular rubber layer are inclined surfaces of the same inclination.
5. The high damping laminated rubber belleville spring device according to any one of claims 1-4, wherein said upper load ring is located at an innermost layer of the high damping laminated rubber belleville spring device, and a threaded hole in an axial direction is provided in the middle thereof.
6. A high damping laminated rubber belleville spring structure comprising at least two high damping laminated rubber belleville spring devices according to any one of claims 1-5, and at least two high damping laminated rubber belleville spring devices are adhered together in the same direction.
7. A high damping laminated rubber belleville spring structure comprising a pair of opposing inner connecting rings and two high damping laminated rubber belleville spring devices according to any one of claims 1-5, said opposing inner connecting rings being fixedly mounted between two oppositely disposed high damping laminated rubber belleville spring devices.
8. The high damping laminated rubber belleville spring structure of claim 7, wherein the inner mating connecting ring and the two high damping laminated rubber belleville spring devices are fixedly mounted by bolts.
9. The high damping laminated rubber belleville spring structure is characterized by comprising two involution inner connecting rings, one involution outer connecting ring and four high damping laminated rubber belleville spring devices according to any one of claims 1-5, wherein the two involution inner connecting rings are respectively arranged between the two pairwise arranged high damping laminated rubber belleville spring devices, the involution outer connecting rings are positioned in the middle of the high damping laminated rubber belleville spring structure, and the involution inner connecting rings, the involution outer connecting rings and the high damping laminated rubber belleville spring devices are all coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630792.1U CN220378772U (en) | 2023-06-26 | 2023-06-26 | High damping lamination rubber belleville spring device and structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321630792.1U CN220378772U (en) | 2023-06-26 | 2023-06-26 | High damping lamination rubber belleville spring device and structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220378772U true CN220378772U (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321630792.1U Active CN220378772U (en) | 2023-06-26 | 2023-06-26 | High damping lamination rubber belleville spring device and structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220378772U (en) |
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2023
- 2023-06-26 CN CN202321630792.1U patent/CN220378772U/en active Active
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