CN212317166U - Friction shock insulation support - Google Patents
Friction shock insulation support Download PDFInfo
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- CN212317166U CN212317166U CN202021898833.1U CN202021898833U CN212317166U CN 212317166 U CN212317166 U CN 212317166U CN 202021898833 U CN202021898833 U CN 202021898833U CN 212317166 U CN212317166 U CN 212317166U
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Abstract
The utility model belongs to the technical field of shock insulation, and relates to a friction shock insulation support, which comprises an upper cover plate and a lower cover plate, wherein a sealing steel ring fixedly connected with the lower cover plate, a striking sleeve suspended above the lower cover plate and a friction material sleeve placed above the lower cover plate are sequentially arranged between the upper cover plate and the lower cover plate from outside to inside; the top end of the impact sleeve is contacted with the upper cover plate, and the edge of the upper friction material is contacted with the inner ring of the impact sleeve. The utility model discloses simple structure, cost reduction to compressive capacity improves, and the shock insulation effect is more excellent.
Description
Technical Field
The utility model relates to a friction shock insulation support belongs to the shock insulation technology field.
Background
The disaster caused by the strong earthquake is mainly caused by the horizontal earthquake wave (horizontal vibration), namely, the horizontal acceleration, so that the earthquake intensity (damage degree) is regulated to be 7 degrees when the horizontal acceleration reaches 0.1 g. In order to eliminate earthquake disasters, the horizontal earthquake acceleration is eliminated, and the horizontal earthquake acceleration is not separated from the horizontal earthquake acceleration. At present, the patent of application number 2018211093751 plays better shock insulation effect, can realize the purpose of protection top building, but its structure shows complicacy slightly, and the cost is slightly high, and shock insulation effect is also limited, needs to improve, makes it have better shock insulation effect.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a friction isolation bearing, this friction isolation bearing simple structure, cost reduction to compressive capacity improves, and the shock insulation effect is more excellent.
The utility model discloses a friction shock insulation support, including upper cover plate and lower cover plate, be equipped with the sealing steel ring of fixedly connected with lower cover plate, the striking sleeve pipe of suspension above the lower cover plate and the friction material sleeve pipe of placing above the lower cover plate from outside to inside in proper order between upper cover plate and the lower cover plate, friction material sleeve pipe inside is equipped with down friction material, lower bolster plate and rocks the bearing block from bottom to top in proper order, rocks the bearing block top and is equipped with the upper padding plate, is equipped with the friction material between upper padding plate and the upper cover plate; the top end of the inner diameter of the impact sleeve is additionally provided with an upper closing-up ring plate which is obliquely arranged from bottom to top from outside to inside, and the upper closing-up ring plate is pressed between the edge of the upper friction material and the upper cover plate to ensure that the upper friction material is not leaked in the impact sleeve.
The upper end face and the lower end face of the rocking bearing block are spherical surfaces or subspheral surfaces with larger curvature radius, and gaps are formed between the two sides of the rocking bearing block and the friction material sleeve. The impact sleeve is suspended above the lower cover plate through the extrusion of the shaking bearing block, the upper base plate and the upper friction material, and the impact sleeve is not in contact with the lower cover plate. The upper padding plate outer ring is thickened, the upper padding plate outer ring is tightly matched with the inner diameter of the impact sleeve, the upper padding plate can be compressed and cannot be loosened, the upper padding plate is supported by hundreds of tons of supporting force of the shaking bearing block, only the horizontal state can be kept, the deflection cannot be caused, no gap exists between the upper padding plate and the impact sleeve, the impact sleeve is more powerfully limited after the upper padding plate outer ring is thickened to generate deflection when the impact sleeve is subjected to the force of collision, only the upper padding plate outer ring can be translated, and the upper friction surface can. When a horizontal seismic wave of a violent earthquake arrives, because the upper end surface and the lower end surface of the rocking bearing block are spherical surfaces or subspheral surfaces, the rocking bearing block can immediately generate horizontal rocking, the foundation actually vibrates horizontally at the moment, the upper structure is basically motionless, the friction surface between the lower cover plate and the lower friction material and the friction surface between the upper cover plate and the upper friction material are not opened, the rocking force amplitude of the rocking bearing block is increased along with the increase of the seismic wave, the friction material sleeve vibrating together with the lower cover plate must collide with the motionless impact sleeve, at least one friction surface of the friction surface between the lower cover plate and the lower friction material and the friction surface between the upper cover plate and the upper friction material is opened to play a role of double insurance, the friction shock insulation effect can be generated more timely and reliable, the shock insulation effect can be generated at the fastest speed, and the upper surface and the lower surface can both generate sliding friction shock, the slidable distance is increased in multiples, the weight, the manufacturing cost and the like of the device are reduced by about one half on the premise of the same bearing capacity, the cost performance can be greatly improved, and the shock insulation effect is better.
Preferably, the quantity of rocking the bearing piece be 1 or a plurality of, can increase substantially the compressive capacity of device, rock the demand that the number of bearing piece satisfies different loads through the adjustment, almost do not block up to can reduce the whole height of device, and increase the pressure area, reduce the deformation possibility of upper cover plate and lower cover plate, thereby save material, weight, expense, be convenient for transport installation etc. can also reduce superstructure's beat from top to bottom when the earthquake rocks, the shock insulation effect is better. When the number of the shaking bearing blocks is more than 3, the annular compression springs can be additionally arranged on the peripheries of the shaking bearing blocks to restrain the shaking bearing blocks together, and the shaking bearing blocks are concentric with the friction material sleeve as far as possible, and meanwhile, the annular compression springs are easy to deform, so that the co-walking shaking of the core blocks is not influenced during earthquakes.
Preferably, the lower closing-up ring plate is additionally arranged at the bottom end of the inner diameter of the friction material sleeve, the lower closing-up ring plate is obliquely arranged from top to bottom from outside to inside, and the lower closing-up ring plate is pressed below the edge of the lower friction material. The lower closing-up ring plate is arranged, on one hand, the sealing force between the lower end face of the friction material sleeve and the lower cover plate can be automatically and proportionally increased along with the increase of load, so that the friction material can be ensured not to leak out in the friction material sleeve all the time, the reliability of the device is improved, on the other hand, a compression spring originally arranged between the top of the friction material sleeve and the upper cover plate is removed, and the cost is reduced.
Preferably, the periphery of the middle part of the impact sleeve is additionally provided with an annular middle partition plate, the inner diameter wall of the annular middle partition plate is close to the outer wall of the impact sleeve, the outer diameter wall of the annular middle partition plate divides the sealing steel ring into an upper sealing steel ring and a lower sealing steel ring, annular sealing gaskets are arranged between the upper sealing steel ring and the annular middle partition plate and between the lower sealing steel ring and the annular middle partition plate, and the outer diameter wall of the annular middle partition plate extends out of the range of the upper sealing steel ring and the lower sealing steel ring; the top end of the upper sealing steel ring is fixedly connected with the upper cover plate, and the bottom end of the lower sealing steel ring is fixedly connected with the lower cover plate. The arrangement of the annular middle partition plate enables the space above the annular middle partition plate and the device as well as the space below the annular middle partition plate and the device to be in a closed ring state respectively; when the earthquake happens, the annular intermediate partition plate can ensure that dust or impurities cannot enter the cavity, the cleanliness of the inner space is ensured, and manual reset or supplementary sealing cover is not needed after the earthquake.
Preferably, the periphery of the impact sleeve above and below the annular middle partition plate is respectively provided with an upper reset helical spring and a lower reset helical spring, one end of each of the upper reset helical spring and the lower reset helical spring is respectively connected with the upper sealing steel ring and the lower sealing steel ring, and the other end of each of the upper reset helical spring and the lower reset helical spring is connected with the impact sleeve. At the end of the earthquake, the device can be restored to a basically concentric position by the elasticity of the upper return spiral spring and the lower return spiral spring, so that the purpose of automatic return is achieved.
Preferably, a plurality of oil storage holes are uniformly distributed on the upper friction material and the lower friction material, so that lubrication can be increased, the friction coefficient can be reduced, the horizontal rigidity of the friction surface can be reduced, and the opening of the friction surface is facilitated.
Preferably, both ends of the upper cover plate and the lower cover plate are respectively shaped through shaped reinforcing steel bars. When the device is installed, the corresponding types and the number of the shock insulation devices are selected according to the weight of the upper structure of the building and the distribution of nodes, all the devices are basically located on the same horizontal plane, but the individual shock insulation devices are strictly required to be horizontally placed, the lower cover plate is horizontally embedded by cement mortar with higher marks through secondary grouting until the lower cover plate is well solidified, then an upper ring beam of reinforced concrete is cast on the upper cover plate, the shaping reinforcing steel bars play a role in pre-tightening and fixing the upper cover plate and the lower cover plate during assembly, the large deviation is avoided when the upper cover plate and the lower cover plate are installed, and the shaping reinforcing steel bars are removed after the upper ring beam is well solidified, so that the upper cover plate and the lower cover plate are not fixedly connected.
Preferably, a layer of grease is uniformly distributed on the upper surface of the lower cover plate in the lower sealing steel ring and the lower surface of the upper cover plate in the upper sealing steel ring, so that the lubricating effect is achieved between the lower friction material and the lower cover plate and between the upper friction material and the upper cover plate, once an earthquake occurs, the internal structure of the device can rapidly react, and the shock insulation effect is achieved.
Compared with the prior art, the utility model beneficial effect who has is:
the utility model discloses simple structure, reasonable in design, cost reduction to compressive capacity improves, can satisfy the demand of different loads, and can fastest performance shock insulation effect, the shock insulation effect is more excellent.
Drawings
FIG. 1 is a schematic structural view of a friction seismic isolation bearing;
fig. 2 and a are partially enlarged views.
In the figure: 1. a lower cover plate; 2. a friction material sleeve; 3. a lower return coil spring; 4. shaping the reinforcing steel bar; 5. a lower sealing steel ring; 6. an annular intermediate diaphragm; 7. an upper sealing steel ring; 8. an upper return coil spring; 9. an upper cover plate; 10. an upper friction material; 11. an upper base plate; 12. an upper necking ring plate; 13. an annular seal; 14. impacting the casing pipe; 15. shaking the bearing block; 16. a lower closing-in ring plate; 17. a lower friction material; 18. a lower base plate; 19. an oil storage hole; 20. grease; 21. the annular compression spring.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
as shown in fig. 1 and 2, the friction shock insulation support of the present invention comprises an upper cover plate 9 and a lower cover plate 1, wherein a sealing steel ring fixedly connected with the lower cover plate 1, an impact sleeve 14 suspended above the lower cover plate 1 and a friction material sleeve 2 placed above the lower cover plate 1 are sequentially arranged between the upper cover plate 9 and the lower cover plate 1 from outside to inside, a lower friction material 17, a lower backing plate 18 and a rocking bearing block 15 are sequentially arranged inside the friction material sleeve 2 from bottom to top, an upper backing plate 11 is arranged at the top end of the rocking bearing block, and an upper friction material 10 is arranged between the upper backing plate 11 and the upper cover plate 9; the top end of the impact sleeve 14 is contacted with the upper cover plate 9, and the edge of the upper friction material 10 is contacted with the inner ring of the impact sleeve 14.
In this embodiment:
the quantity of rocking the bearing block 15 is 1 or a plurality of, can increase substantially the compressive capacity of device, rock the demand that the number of bearing block 15 satisfies different loads through the adjustment, almost do not seal the top, and can reduce the whole height of device, and increase the pressure area, reduce the deformation possibility of upper cover plate 9 and lower cover plate 1, thereby save material, weight, expense, be convenient for transport installation etc., can also reduce superstructure's vertical runout when the earthquake rocks, the shock insulation effect is better. When the number of the shaking bearing blocks 15 is more than 3, the annular pressure springs 21 can be additionally arranged on the peripheries of the shaking bearing blocks, so that the shaking bearing blocks 15 are restrained together and are kept concentric with the friction material sleeve 2 as far as possible, and simultaneously, the annular pressure springs 21 are easy to deform, so that the synchronous shaking of the core blocks is not influenced during earthquakes.
The bottom end of the inner diameter of the friction material sleeve 2 is additionally provided with a lower closing-up ring plate 16, the lower closing-up ring plate 16 is arranged in an inclined manner from top to bottom from outside to inside, and the lower closing-up ring plate 16 is pressed below the edge of a lower friction material 17. The lower closing-in ring plate 16 is arranged to automatically and proportionally increase the sealing force between the lower end surface of the friction material sleeve 2 and the lower cover plate 1 along with the increase of the load, so as to ensure that the friction material does not leak out in the friction material sleeve 2 all the time, thereby improving the reliability of the device, and on the other hand, the original compression spring arranged between the top of the friction material sleeve 2 and the upper cover plate 9 is removed, thereby reducing the cost.
An annular middle partition plate 6 is additionally arranged on the periphery of the middle part of the impact sleeve 14, the inner diameter wall of the annular middle partition plate 6 is close to the outer wall of the impact sleeve 14, the outer diameter wall of the annular middle partition plate 6 divides the sealing steel ring into an upper sealing steel ring 7 and a lower sealing steel ring 5, annular sealing gaskets 13 are respectively arranged between the upper sealing steel ring 7 and the annular middle partition plate 6, the outer diameter wall of the annular middle partition plate 6 extends out of the range of the upper sealing steel ring 7 and the lower sealing steel ring 5; the top end of the upper sealing steel ring 7 is fixedly connected with the upper cover plate 9, and the bottom end of the lower sealing steel ring 5 is fixedly connected with the lower cover plate 1. The arrangement of the annular middle partition plate 6 ensures that the space and the device above the annular middle partition plate 6 and the space and the device below the annular middle partition plate are respectively in a closed ring state; when the earthquake occurs, the annular middle partition plate 6 can ensure that dust or impurities cannot enter the cavity, the cleanliness of the inner space is ensured, and manual reset or supplementary sealing cover is not needed after the earthquake, so that the earthquake-proof structure can be used once and for all.
The periphery of the impact sleeve 14 above and below the annular middle partition plate 6 is respectively provided with an upper return helical spring 8 and a lower return helical spring 3, one end of each of the upper return helical spring 8 and the lower return helical spring 3 is respectively connected with an upper sealing steel ring 7 and a lower sealing steel ring 5, and the other end of each of the upper return helical spring 8 and the lower return helical spring is connected with the impact sleeve 14. At the end of the earthquake, the device can be restored to a basically concentric position by the elasticity of the upper return spiral spring 8 and the lower return spiral spring 3, thereby achieving the purpose of automatic return. The anti-collision and buffering functions can be achieved by the upper return spiral spring 8 and the lower return spiral spring 3 with the outer rings being square.
The upper friction material 10 and the lower friction material 17 are uniformly distributed with a plurality of oil storage holes 19, which can increase lubrication, reduce friction coefficient and reduce horizontal rigidity of the friction surface, thereby being beneficial to opening the friction surface.
The two ends of the upper cover plate 9 and the lower cover plate 1 are respectively shaped through shaping reinforcing steel bars 4. When the device is installed, the corresponding types and the number of the shock insulation devices are selected according to the weight of the upper structure of the building and the distribution of the nodes, all the devices are basically located on the same horizontal plane, but the individual shock insulation devices are strictly required to be horizontally pressed, the lower cover plate 1 is horizontally embedded by cement mortar with higher grade number until the shock insulation devices are well solidified, then an upper ring beam of reinforced concrete is cast on the upper cover plate 9, the shaping reinforcing steel bars play a role in pre-tightening and fixing the upper cover plate 9 and the lower cover plate 1 during assembling, the large deviation is avoided when the upper cover plate 9 and the lower cover plate 1 are installed, and the shaping reinforcing steel bars 4 are removed after the upper ring beam is well solidified, so that the upper cover plate 9 and the lower cover plate 1 are not fixedly connected.
A layer of grease 20 is uniformly distributed on the upper surface of the lower cover plate 1 in the lower sealing steel ring 5 and the lower surface of the upper cover plate 9 in the upper sealing steel ring 7, a lubricating effect is achieved between the lower friction material 17 and the lower cover plate 1 and between the upper friction material 10 and the upper cover plate 9, once an earthquake happens, the internal structure of the device can rapidly react, and the shock insulation effect is achieved.
The upper end face and the lower end face of the rocking bearing block 15 are spherical surfaces or subspheral surfaces with larger curvature radius, and gaps are formed between the two sides of the rocking bearing block 15 and the friction material sleeve 2. The impact bushing 14 is suspended above the lower cover plate 1 by the compression of the sloshing bearing block 15, the upper pad plate 11 and the upper friction material 10, and the impact bushing 14 is not in contact with the lower cover plate 1. The outer ring of the upper padding plate 11 is thickened, the outer ring of the upper padding plate 11 is tightly matched with the inner diameter of the impact sleeve 14, the upper padding plate can be compressed and cannot be loosened, the upper padding plate 11 is supported by hundreds of tons of shaking bearing blocks, only the horizontal state can be kept, the upper padding plate 11 cannot be inclined, no gap exists between the upper padding plate 11 and the impact sleeve 14, the impact sleeve 14 is more powerfully limited to be inclined when the impact sleeve 14 is stressed after the outer ring of the upper padding plate 11 is thickened, only the upper padding plate can be translated, and the upper friction surface can be opened. When a horizontal seismic wave of a violent earthquake arrives, because the upper end surface and the lower end surface of the shaking bearing block 15 are spherical surfaces or subspheral surfaces, the shaking bearing block can immediately generate horizontal shaking, the foundation actually shakes horizontally, the upper structure basically does not move, the friction surface between the lower cover plate 1 and the lower friction material 17 and the friction surface between the upper cover plate 9 and the upper friction material 10 are not opened, the shaking force amplitude of the shaking bearing block 15 is increased along with the increase of the seismic wave, the friction material sleeve 2 which shakes together with the lower cover plate 1 must collide with the immovable collision sleeve 14, at least one friction surface of the friction surface between the lower cover plate 1 and the lower friction material 17 and the friction surface between the upper cover plate 9 and the upper friction material 10 is opened, the double-insurance effect is achieved, the friction shock insulation effect can be generated more timely and reliably, and the shock insulation effect can be generated at the fastest speed, the upper surface and the lower surface can generate sliding friction shock insulation effect, the slidable distance is increased in a multiplied mode, the weight, the manufacturing cost and the like of the device are reduced by about one half on the premise of the same bearing capacity, the cost performance can be greatly improved, and the shock insulation effect is better.
Claims (8)
1. The utility model provides a friction isolation bearing, includes upper cover plate (9) and lower apron (1), its characterized in that: a sealing steel ring fixedly connected with the lower cover plate (1), an impact sleeve (14) suspended above the lower cover plate (1) and a friction material sleeve (2) placed above the lower cover plate (1) are sequentially arranged between the upper cover plate (9) and the lower cover plate (1) from outside to inside, a lower friction material (17), a lower backing plate (18) and a shaking pressure-bearing block (15) are sequentially arranged inside the friction material sleeve (2) from bottom to top, an upper backing plate (11) is arranged at the top end of the shaking pressure-bearing block, and an upper friction material (10) is arranged between the upper backing plate (11) and the upper cover plate (9); an upper closing-up ring plate (12) is additionally arranged at the top end of the inner diameter of the impact sleeve (14), the upper closing-up ring plate (12) is obliquely arranged from outside to inside from bottom to top, and the upper closing-up ring plate (12) is pressed between the edge of the upper friction material (10) and the upper cover plate (9).
2. The friction vibration-isolating mount as set forth in claim 1, wherein: the number of the shaking bearing blocks (15) is 1 or more.
3. The friction vibration-isolating mount as set forth in claim 1, wherein: the bottom end of the inner diameter of the friction material sleeve (2) is additionally provided with a lower closing-in ring plate (16), the lower closing-in ring plate (16) is obliquely arranged from top to bottom from outside to inside, and the lower closing-in ring plate (16) is pressed below the edge of the lower friction material (17).
4. A friction seismic isolation bearing according to any of claims 1 to 3 wherein: an annular middle partition plate (6) is additionally arranged on the periphery of the middle part of the impact sleeve (14), the inner diameter wall of the annular middle partition plate (6) is close to the outer wall of the impact sleeve (14), the outer diameter wall of the annular middle partition plate (6) divides the sealing steel ring into an upper sealing steel ring (7) and a lower sealing steel ring (5), annular sealing gaskets (13) are respectively arranged between the upper sealing steel ring (7), the lower sealing steel ring (5) and the annular middle partition plate (6), and the outer diameter wall of the annular middle partition plate (6) extends out of the range of the upper sealing steel ring (7) and the lower sealing steel ring (5); the top end of the upper sealing steel ring (7) is fixedly connected with the upper cover plate (9), and the bottom end of the lower sealing steel ring (5) is fixedly connected with the lower cover plate (1).
5. The friction isolation mount of claim 4, wherein: the periphery of an impact sleeve (14) above and below the annular middle partition plate (6) is respectively provided with an upper reset spiral spring (8) and a lower reset spiral spring (3), one end of the upper reset spiral spring (8) and one end of the lower reset spiral spring (3) are respectively connected with an upper sealing steel ring (7) and a lower sealing steel ring (5), and the other end of the upper reset spiral spring and the other end of the lower reset spiral spring are respectively connected with the impact sleeve (14).
6. The friction isolation mount of claim 4, wherein: a plurality of oil storage holes (19) are uniformly distributed on the upper friction material (10) and the lower friction material (17).
7. The friction isolation mount of claim 4, wherein: the two ends of the upper cover plate (9) and the lower cover plate (1) are respectively shaped through shaping reinforcing steel bars (4).
8. The friction isolation mount of claim 4, wherein: a layer of grease (20) is uniformly distributed on the upper surface of the lower cover plate (1) in the lower sealing steel ring (5) and the lower surface of the upper cover plate (9) in the upper sealing steel ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898833.1U CN212317166U (en) | 2020-09-03 | 2020-09-03 | Friction shock insulation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021898833.1U CN212317166U (en) | 2020-09-03 | 2020-09-03 | Friction shock insulation support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212317166U true CN212317166U (en) | 2021-01-08 |
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ID=74034878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021898833.1U Active CN212317166U (en) | 2020-09-03 | 2020-09-03 | Friction shock insulation support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212317166U (en) |
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2020
- 2020-09-03 CN CN202021898833.1U patent/CN212317166U/en active Active
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