CN209941481U - Decentralized damping support - Google Patents
Decentralized damping support Download PDFInfo
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- CN209941481U CN209941481U CN201920554728.7U CN201920554728U CN209941481U CN 209941481 U CN209941481 U CN 209941481U CN 201920554728 U CN201920554728 U CN 201920554728U CN 209941481 U CN209941481 U CN 209941481U
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Abstract
The utility model discloses a dispersion type damping support, including bottom suspension bedplate, spherical crown welt and upper bracket board, the spherical crown welt include plane welt and sphere welt, be provided with two at least damping alloy boards between plane welt and the sphere welt, damping alloy adopts dispersion type embedding in sphere welt upper surface recess, has reduced damping alloy's area, is convenient for process out the material that the surface accuracy meets the requirements, and damping alloy's roughness is higher, and damping capacity is stronger more, and the atress is more even, and life is also long.
Description
Technical Field
The utility model relates to a bridge beam supports field, concretely relates to decentralized damping support.
Background
In recent years, the traffic construction of China is rapidly developed, the running speed, the carrying weight and the transportation density are greatly improved, wherein the highway traffic and the railway traffic are most widely applied, but the two traffic modes are not limited by the terrain and the forest stand of urban high buildings, so that the limitation of spanning through the construction of bridges is required, and the highway and railway bridges are mainly viaducts at present.
The vehicle runs on the viaduct, the generated vibration is transmitted to the foundation through the bridge piers and then is transmitted to the periphery from the foundation, and secondary vibration of nearby strata and buildings is further induced, so that the safety of buildings along the line and the life and work of surrounding residents are influenced, moreover, the vibration of the bridge also generates noise, the noise generated by the viaduct traffic structure belongs to structural radiation noise, the noise has the characteristics of high sound level and long action time, mainly medium and low frequency, high frequency noise can be well eliminated from the root by the traditional vibration reduction measures adopted by the existing viaduct, low frequency noise has small air molecule vibration and low energy consumption when being transmitted, so that the low frequency noise is far transmitted, can easily pass through barriers such as walls and glass windows, and the low frequency vibration is difficult to effectively eliminated by the traditional vibration reduction measures, so that the common vibration reduction and sound insulation mode is difficult to eliminate the low frequency noise, and low frequency noise can cause long-term harm to the human body.
At present, a bridge support is mainly adopted for the viaduct, and a vibration damping component is additionally arranged in the support to reduce and eliminate low-frequency vibration of the bridge; but the damping performance of the rubber damping vibration attenuation element is greatly affected by the temperature and the vibration frequency, the damping performance effect is not very ideal, and the vibration attenuation effect is not obvious aiming at the low-frequency vibration, meanwhile, because the rubber damping vibration attenuation element has poor heat resistance and is easy to age, the vibration attenuation effect of the bridge support in long-term use is difficult to ensure, and the vibration attenuation function cannot be stably exerted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a decentralized damping support, unsatisfactory, the low frequency damping effect of damping vibration damping performance is poor in order to solve prior art, damping alloy plate machining precision is not high, the short technical problem of life.
In order to solve the technical problem, the utility model discloses a following scheme:
the utility model provides a dispersion type damping support, includes bottom suspension bedplate, spherical crown welt and upper bracket board, the spherical crown welt include plane welt and sphere welt, be provided with two at least damping alloy boards between plane welt and the sphere welt.
By adopting the structure, when the bridge vibrates and deforms, the vibration is transmitted to the vibration-damping alloy in the support through the support shell, the vibration-damping alloy absorbs the kinetic energy of the vibration, and converts the kinetic energy into heat energy to be dissipated, thereby reducing and eliminating vibration, and because the damping of the vibration-reducing alloy is very large, therefore, the vibration can be quickly attenuated, a good vibration damping effect is achieved, the vibration damping alloy plate is changed from a whole plate into scattered small alloy plates, the vibration damping alloy plate with small area is beneficial to processing, the flatness of the processed alloy plate can meet the requirement, when the support receives vibration and deformation, the stress is uniform, so that the vibration-damping alloy plate is not easy to deform, the service life of the vibration-damping alloy plate is prolonged, the vibration-damping alloy plate is dispersedly embedded on the spherical lining plate, the vibration reduction alloy plate can not be damaged completely at the same time, only a small damaged block needs to be replaced every time, and the cost is saved.
Further, as a preferred technical scheme, the upper surface of the spherical lining plate is provided with a groove matched with the vibration reduction alloy plate, and the vibration reduction alloy plate is arranged in the groove.
Due to the adoption of the structure, the upper surface of the spherical lining plate is provided with the groove matched with the vibration reduction alloy plate, and the vibration reduction alloy plate is directly embedded into the groove, so that the vibration reduction alloy is more stable between the plane lining plate and the spherical lining plate.
Further, as a preferred technical scheme, the vibration reduction alloy plates are distributed on the upper surface of the spherical lining plate in a centrosymmetric or axisymmetric manner by taking the center of the spherical lining plate as a center.
Further, as a preferred technical scheme, the center of the spherical lining plate is provided with a damping alloy plate, and a first circle layer of damping alloy plates are arranged around the damping alloy plate at the center and distributed in a circumferential shape or a regular hexagon shape.
Further, as a preferable technical scheme, a second ring layer of damping alloy plates are arranged around the first ring layer of damping alloy plates and distributed in a circumferential shape or a regular hexagon shape.
Further, as a preferable technical solution, the damping alloy plate and the second groove are both circular.
By adopting the structure, the damping alloy plate and the groove are both circular, the circular shape is convenient to process, no edge angle exists, the upper surface space of the spherical lining plate can be reasonably used, the maximization of the quantity of the damping alloy plates is convenient, and the optimization of the damping capacity is convenient.
Further, as a preferable aspect, the vibration reduction alloy plate is an alloy material having a shape memory function.
By adopting the structure, the vibration-damping alloy plate is made of alloy materials with the shape memory function, so that the vibration-damping alloy plate not only has good damping and vibration-damping performance, but also has the shape memory function, when the bridge deforms due to large vibration, the memory alloy can enable the bridge to freely deform through self deformation so as not to generate stress, and the memory alloy can restore the original shape after vibration, so that the bridge and the support can restore the original structure, and the bridge and the support are prevented from being damaged by vibration.
Further, as preferred technical scheme, it is vice to be equipped with the plane friction between upper bracket board and the spherical crown welt, is equipped with the sphere friction between spherical crown welt and the undersetting board vice, the plane friction vice including plane corrosion resistant plate and the plane slide that can relative slip, plane corrosion resistant plate welded fastening is at the upper bracket board lower surface, the plane slide is fixed to be set up at plane welt upper surface, the sphere friction vice including sphere corrosion resistant plate and the sphere slide that can relative slip, sphere corrosion resistant plate welded fastening is at sphere welt lower surface, the sphere slide is fixed to be set up at the undersetting board upper surface.
Due to the adoption of the structure, the plane stainless steel plate is welded and fixed on the lower surface of the upper support plate, the plane sliding plate is fixedly arranged on the upper surface of the plane lining plate, the spherical stainless steel plate is welded and fixed on the lower surface of the spherical lining plate, the spherical sliding plate is fixedly arranged on the upper surface of the lower support plate, the deformation (including displacement and rotation angle) of the bridge can generate stress, the stress generated can be eliminated through the relative sliding between the plane sliding plate and the plane stainless steel plate and the relative sliding between the spherical sliding plate and the spherical stainless steel plate, and the overall structure of the bridge is stabilized.
Furthermore, as a preferred technical scheme, the plane sliding plate and the spherical sliding plate are made of polytetrafluoroethylene materials.
By adopting the structure, the plane sliding plate and the spherical sliding plate are made of polytetrafluoroethylene materials, the polytetrafluoroethylene materials have good mechanical properties, the friction coefficient is the lowest of high polymer materials, the stainless steel plates with the same low friction coefficient are matched, the relative sliding between the plane sliding plate and the spherical sliding plate is very smooth, the bridge can vibrate through sliding to freely displace, and the plane sliding plate and the spherical sliding plate have strong wear resistance, corrosion resistance and ageing resistance. And the performance of the polytetrafluoroethylene material is kept stable for a long time in the temperature range of-180 to 250 ℃, and compared with other high polymer materials, the polytetrafluoroethylene material has a larger use temperature range and can be used on bridge supports in various environments.
Further, as a preferred technical scheme, a first sealing ring is arranged between the planar stainless steel plate and the planar lining plate, a second sealing ring is arranged between the spherical stainless steel plate and the lower support plate, a first gap is formed between the planar sliding plate and the first sealing ring, a second gap is formed between the spherical sliding plate and the second sealing ring, and silicone grease is filled in the first gap and the second gap.
By adopting the structure, the sealing ring and the silicone grease are used for sealing the support, so that impurities are prevented from entering the friction pair to influence the performance of the support, and the silicone grease also plays a role in lubricating the friction pair and dissipating heat.
The utility model discloses beneficial effect who has:
1. the spherical liner plate upper surface is provided with a plurality of recesses, the embedding has damping alloy board in the recess, damping alloy board becomes the fritter alloy board of dispersion by a whole board, the damping alloy board of little area does benefit to processing, the roughness of the damping alloy board of processing out can reach the requirement, when vibration and deformation are received to the support, the atress is even, make the difficult production of damping alloy board warp, improve damping alloy board life, in the dispersion embedding spherical liner plate, make damping alloy board can not all damage simultaneously, only need to change a fritter wherein damaging at every turn, and the cost is saved.
2. The vibration reduction alloy plate is made of alloy materials with a shape memory function, has good damping and vibration reduction performance and also has the shape memory function, when the bridge deforms due to large vibration, the memory alloy can enable the bridge to deform freely due to self deformation and cannot generate stress, and the memory alloy can restore the original shape after vibration, so that the original structure of the bridge and the support is restored, and the bridge and the support are prevented from being damaged due to vibration.
3. Set up the sealing washer and can prevent effectively that outside impurity from getting into the support friction pair, influence the vice sliding property of friction, annotate the silicone grease in annular gap, not only can strengthen the sealing performance of support, the silicone grease can get into the vice working face of friction gradually when the vice slip of friction moreover, further reduces the coefficient of friction between two vice friction surfaces of friction, the silicone grease has the radiating effect to the heat that produces because of friction, rotation and damping alloy damping in the support simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the distribution of the damping alloy on the upper surface of the spherical lining plate of the present invention;
FIG. 3 is the distribution schematic diagram of the damping alloy on the upper surface of the spherical lining plate of the present invention
Reference numerals: 1-upper support plate, 2-first sealing ring, 3-first gap, 4-plane lining plate, 5-plane stainless steel plate, 6-plane sliding plate, 7-damping alloy plate, 8-spherical lining plate, 9-spherical stainless steel plate, 10-lower support plate, 11-spherical sliding plate, 12-second gap, 13-second sealing ring, 14-groove
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example 1
As shown in fig. 1, a dispersion type damping support comprises a lower support plate 10, a spherical crown lining plate and an upper support plate 1, wherein the spherical crown lining plate comprises a plane lining plate 4 and a spherical lining plate 8, at least two damping alloy plates 7 are arranged between the plane lining plate 4 and the spherical lining plate 8, a groove 14 matched with the damping alloy plates 7 is arranged on the upper surface of the spherical lining plate 8, and the damping alloy plates 7 are arranged in the groove 14.
Specifically, when the bridge vibrates and deforms, and the vibration is transmitted to the vibration reduction alloy plate 7 in the support through the support shell, the vibration reduction alloy plate 7 absorbs the kinetic energy of the vibration and converts the kinetic energy into heat energy to be dissipated, so that the vibration is reduced and eliminated. The deformation (including displacement and corner) of the bridge can generate stress, the generated stress can be eliminated through the rotation of the spherical cap lining plate, the integral structure of the bridge is stabilized, at least two damping alloy plates 7 are arranged between the plane lining plate 4 and the spherical surface lining plate 8, the area of the damping alloy plates 7 is reduced, the damping alloy plates 7 are arranged in the grooves 14, the damping alloy plates 7 are prevented from falling off in the rotating process of the spherical cap lining plate, the damping alloy plates 7 with small areas are convenient to process materials with the flatness meeting the requirements, the higher the flatness of the damping alloy plates 7 is, the stronger the damping capacity is, the more uniform stress is realized, and the service life is also long.
The damping alloy material has large damping, can quickly attenuate vibration and prevent the bridge and the support structure from being damaged by overlong vibration time; the damping alloy has excellent mechanical property, high material strength, corrosion resistance and wear resistance, the damping vibration attenuation performance of the damping alloy keeps high efficiency and stability in environments with different temperatures and different frequencies, the damping alloy has good vibration attenuation effect on low-frequency vibration, has excellent anti-aging capacity and long service life, and is suitable for being used in bridge supports in various environments for a long time.
Example 2
As shown in fig. 2 and 3, in example 1, the damping alloy plates 7 are distributed on the upper surface of the spherical liner plate 8 so as to be centrosymmetric or axisymmetric about the center of the spherical liner plate 8. The center of the spherical lining plate (8) is provided with a damping alloy plate 7, and a first circle layer of damping alloy plate 7 is arranged around the damping alloy plate 7 at the center and distributed in a circumference or a regular hexagon. And a second ring of damping alloy plates 7 are arranged around the first ring of damping alloy plates 7 and distributed in a circumferential or regular hexagon shape. The damping alloy plate 7 and the recess 14 are both circular. Specifically, the vibration reduction alloy plates 7 are distributed on the upper surface of the spherical lining plate 8 in a circular central symmetry or axial symmetry manner by taking the center of the spherical lining plate 8 as a center, so that the stress of the spherical lining plate 8 is uniformly distributed, and the vibration reduction alloy plates 7 are distributed on the upper surface of the spherical lining plate 8 in a concentric circle shape or a regular hexagon shape by taking the center of the spherical lining plate 8 as a center. The concentric circumference shape or the regular hexagon is divided into two layers, six damping alloy plates 7 are arranged on the first layer, twelve damping alloy plates are arranged on the second layer, one damping alloy plate 7 is arranged at the center of the spherical lining plate, the upper surface space of the spherical lining plate 8 is utilized to the maximum extent, the stress on each part of the upper surface of the spherical lining plate 8 is uniform, deformation caused by uneven stress can be avoided when the stress is applied, and the uniform stress of the whole support is facilitated. Damping alloy plate 7 and second recess 15 all adopt circularly, and circular shape is convenient for process, and no edges and corners can be reasonable use the space of sphere welt 8, the maximize of the damping alloy plate 7 quantity of being convenient for, the optimization of the damping ability of being convenient for. In the specific implementation, the distribution of the damping alloy plates 7 can also be regular hexagon distribution taking the center of the spherical lining plate 8 as the center, and similarly, the center of the spherical lining plate 8 is provided with one damping alloy plate 7, the first layer of six damping alloy plates 7 and the second layer of twelve damping alloy plates 7, and the distribution mode can also meet the requirement of uniform bearing stress.
Example 3
In addition to example 2, the vibration damping alloy plate 7 is an alloy material having a shape memory function. The vibration reduction alloy plate 7 is made of alloy materials with a shape memory function, has good damping and vibration reduction performance and also has the shape memory function, when the bridge deforms due to large vibration, the memory alloy can enable the bridge to deform freely due to self deformation and cannot generate stress, and the memory alloy can restore the original shape after vibration, so that the original structure of the bridge and the support is restored, and the bridge and the support are prevented from being damaged due to vibration.
Example 4
As shown in fig. 1, on the basis of embodiment 3, a plane friction pair is provided between the upper support plate 1 and the spherical crown lining plate, a spherical friction pair is provided between the spherical crown lining plate and the lower support plate 10, the plane friction pair includes a plane stainless steel plate 5 and a plane sliding plate 6 which can slide relatively, the plane stainless steel plate 5 is welded and fixed on the lower surface of the upper support plate 1, the plane sliding plate 6 is fixed on the upper surface of the plane lining plate 4, the spherical friction pair includes a spherical stainless steel plate 9 and a spherical sliding plate 11 which can slide relatively, the spherical stainless steel plate 9 is welded and fixed on the lower surface of the spherical lining plate 8, and the spherical sliding plate 11 is fixed on the upper surface of the lower support plate 10.
Be provided with the plane friction between upper bracket board 1 and the spherical crown welt vice, be provided with the sphere friction between spherical crown welt and bottom suspension fagging 10 vice, 5 welded fastening of plane corrosion resistant plate are at 1 lower surface of last bedplate, 6 fixed settings in 4 upper surfaces of plane welt of plane slide, 9 welded fastening of sphere corrosion resistant plate are at 8 lower surfaces of sphere welt, 11 fixed settings of sphere slide are at 10 upper surfaces of bottom suspension fagging, the deformation of bridge (including displacement and corner) can produce stress, can be through the relative slip between 6 of plane slide and the plane corrosion resistant plate 5, the stress that produces is eliminated to the relative slip between sphere slide 11 and the sphere corrosion resistant plate 9, the overall structure of stable bridge.
Example 5
On the basis of the embodiment 4, the plane sliding plate 6 and the spherical sliding plate 11 both adopt polytetrafluoroethylene materials.
The plane sliding plate 6 and the spherical sliding plate 11 are made of polytetrafluoroethylene materials, the polytetrafluoroethylene materials have good mechanical properties, the friction coefficient is the lowest among high polymer materials, the stainless steel plates with the same low friction coefficient are matched, the relative sliding between the plane sliding plate and the spherical sliding plate is very smooth, the bridge can vibrate through sliding to move freely, and the plane sliding plate and the spherical sliding plate have strong wear resistance, corrosion resistance and ageing resistance. And the performance of the polytetrafluoroethylene material is kept stable for a long time in the temperature range of-180 to 250 ℃, and compared with other high polymer materials, the polytetrafluoroethylene material has a larger use temperature range and can be used on bridge supports in various environments.
Example 6
As shown in fig. 1, in example 5, a first seal ring 2 is provided between the planar stainless steel plate 5 and the planar lining plate 4, a second seal ring 13 is provided between the spherical stainless steel plate 9 and the lower support plate 10, a first gap 3 is provided between the planar sliding plate 6 and the first seal ring 2, a second gap 12 is provided between the spherical sliding plate 11 and the second seal ring 13, and silicone grease is filled in both the first gap 3 and the second gap 12.
The sealing washer is used for sealed of support with the silicone grease, prevents that impurity from getting into the vice effect support performance of friction, and the silicone grease also plays lubricated vice and radiating effect of friction simultaneously.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a dispersion type damping support, includes bottom suspension bedplate (10), spherical crown welt and upper bracket board (1), its characterized in that, the spherical crown welt include plane welt (4) and spherical welt (8), be provided with two at least damping alloy boards (7) between plane welt (4) and spherical welt (8).
2. A dispersion type vibration damping mount according to claim 1, characterized in that the spherical liner plate (8) is provided with a second groove (14) on its upper surface for matching with the vibration damping alloy plate (7), and the vibration damping alloy plate (7) is disposed in the groove (14).
3. A dispersion type vibration damping mount according to claim 2, wherein said vibration damping alloy plate (7) is distributed on the upper surface of the spherical lining plate (8) in a central symmetry or an axial symmetry with the center of the spherical lining plate (8) as the center.
4. A dispersion damping mount according to claim 3, characterized in that the spherical lining plate (8) is provided with a damping alloy plate (7) at the center, and the damping alloy plate (7) at the center is provided with a first ring layer of damping alloy plates (7) around, and is distributed in a circle or regular hexagon.
5. A dispersion type vibration damping mount according to claim 4, characterized in that the second ring of vibration damping alloy plates (7) is arranged around the first ring of vibration damping alloy plates (7) and distributed in a circle or a regular hexagon.
6. A dispersion mount according to claim 2, characterized in that said damping alloy plate (7) and said recess (14) are circular.
7. A distributed vibration damping mount according to claim 1 wherein said vibration damping alloy sheet (7) is an alloy material having a shape memory function.
8. The dispersion type vibration damping support according to claim 1, wherein a plane friction pair is arranged between the upper support plate (1) and the spherical cap lining plate, a spherical friction pair is arranged between the spherical cap lining plate and the lower support plate (10), the plane friction pair comprises a plane stainless steel plate (5) and a plane sliding plate (6) which can slide relatively, the plane stainless steel plate (5) is welded and fixed on the lower surface of the upper support plate (1), the plane sliding plate (6) is fixedly arranged on the upper surface of the plane lining plate (4), the spherical friction pair comprises a spherical stainless steel plate (9) and a spherical sliding plate (11) which can slide relatively, the spherical stainless steel plate (9) is welded and fixed on the lower surface of the spherical lining plate (8), and the spherical sliding plate (11) is fixedly arranged on the upper surface of the lower support plate (10).
9. A dispersion damping mount according to claim 8, characterized in that the planar slider (6) and the spherical slider (11) are made of PTFE.
10. A dispersion type vibration damping support according to claim 8, characterized in that a first seal ring (2) is arranged between the plane stainless steel plate (5) and the plane lining plate (4), a second seal ring (13) is arranged between the spherical stainless steel plate (9) and the lower support plate (10), a first gap (3) is arranged between the plane sliding plate (6) and the first seal ring (2), a second gap (12) is arranged between the spherical sliding plate (11) and the second seal ring (13), and silicone grease is filled in both the first gap (3) and the second gap (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920554728.7U CN209941481U (en) | 2019-04-23 | 2019-04-23 | Decentralized damping support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920554728.7U CN209941481U (en) | 2019-04-23 | 2019-04-23 | Decentralized damping support |
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| CN209941481U true CN209941481U (en) | 2020-01-14 |
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| CN201920554728.7U Active CN209941481U (en) | 2019-04-23 | 2019-04-23 | Decentralized damping support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324000A (en) * | 2020-09-16 | 2021-02-05 | 中国铁路设计集团有限公司 | Shock absorption and energy dissipation method under earthquake action |
| CN114016397A (en) * | 2021-09-29 | 2022-02-08 | 洛阳双瑞特种装备有限公司 | Damping spherical crown lining plate with lubricating grease supplementing function |
| US11428265B2 (en) * | 2019-10-24 | 2022-08-30 | Aktiebolaget Skf | Plain bearing and method for its manufacture |
-
2019
- 2019-04-23 CN CN201920554728.7U patent/CN209941481U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11428265B2 (en) * | 2019-10-24 | 2022-08-30 | Aktiebolaget Skf | Plain bearing and method for its manufacture |
| CN112324000A (en) * | 2020-09-16 | 2021-02-05 | 中国铁路设计集团有限公司 | Shock absorption and energy dissipation method under earthquake action |
| CN114016397A (en) * | 2021-09-29 | 2022-02-08 | 洛阳双瑞特种装备有限公司 | Damping spherical crown lining plate with lubricating grease supplementing function |
| CN114016397B (en) * | 2021-09-29 | 2024-03-26 | 中船双瑞(洛阳)特种装备股份有限公司 | Vibration reduction spherical crown lining plate with lubricating grease supplementing function |
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Address after: No. 669, Xingyuan 10 road, a district, Xinjin Industrial Park, Chengdu, Sichuan 610000 Patentee after: Jitong Intelligent Equipment Co.,Ltd. Patentee after: CHINA RAILWAY DESIGN Corp. Address before: No. 669, Xingyuan 10 road, a district, Xinjin Industrial Park, Chengdu, Sichuan 610000 Patentee before: CHENGDU JITONG ROAD AND BRIDGE TECHNOLOGY CO.,LTD. Patentee before: CHINA RAILWAY DESIGN Corp. |