CN204491402U - A kind of elastic gap formula viscous damper used on highway bridge - Google Patents
A kind of elastic gap formula viscous damper used on highway bridge Download PDFInfo
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- CN204491402U CN204491402U CN201520150675.4U CN201520150675U CN204491402U CN 204491402 U CN204491402 U CN 204491402U CN 201520150675 U CN201520150675 U CN 201520150675U CN 204491402 U CN204491402 U CN 204491402U
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- damping ring
- piston
- cylinder barrel
- highway bridge
- viscous damper
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- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 19
- 230000037250 Clearance Effects 0.000 abstract description 10
- 230000035512 clearance Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 3
- 230000000875 corresponding Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Abstract
The utility model relates to a kind of elastic gap formula viscous damper used on highway bridge, piston is set with damping ring, damping ring adopts low modulus elastomeric material to make, damping ring is fixed on the outside of piston by securing member, piston rod is relative to the axially-movable of cylinder barrel, drive piston and the cavity inter-sync campaign between right-left seal guiding device of the damping ring of build-in on piston, extruding power consumption liquid flows through from the gap high speed between damping ring and casing wall, thus in gap, produce viscous shear stress and association compressive stress, this compressive stress meeting compression damping ring, damping ring generation radial contraction is out of shape, respective clearance expansion improves damper energy efficiency, avoid general Varied clearance formula damper designs difficulty of processing large, damping force bust, the problems such as damper installation requirement is high.
Description
Technical field
The utility model relates to viscous damper design field, is specifically related to a kind of damper, especially relates to a kind of elastic gap formula viscous damper used on highway bridge for reducing the effects such as the distortion of highway bridge equipment under vibrating load effect.
Background technology
Typical viscous damper is divided into hole formula and clearance-type two class, general principle is all distortion and movement velocity by relative deformation and speed of related movement between extraneous component being converted to the relative cylinder barrel of damper inner carrier, power consumption liquid in cylinder body is made to flow through narrow and small duct or gap at a high speed under squeezing action, produce larger viscous shearing and shear displacemant, cause power consumption liquid to generate heat in a large number, achieve building or equipment kinetic energy and to consume energy in damper the conversion of internal energy of liquid.
Clearance-type damper is divided into fixed gap formula and Varied clearance formula, and between fixed gap formula viscous damper casing wall and piston appearance, gap size remains definite value, does not change, and its shortcoming is that the turgor of product hysteresis loop is poor, and energy efficiency is relatively low.Varied clearance formula viscous damper needs to make Machining of Curved Surface in piston appearance and casing wall, and the modeling of toroidal function is complicated, and processing technology difficulty is large, is difficult to keep constant product quality; Often there is obvious reduction in stepped clearance-type damper hysteresis loop damping force when the piston speed of service is maximum, more difficult meet " energy consuming curve should full " requirement; The most important thing is that described two class Varied clearance formula dampers exist visibility point correlation, namely when product is installed, piston must be positioned at clearance configurations central symmetry position and could meet and manufacture and design object, and the error requirements of building operations obviously can not meet the error requirements that product is installed, therefore there is larger problem in the application of building engineering field in above two series products.
Therefore, produce a kind of structure simply, easy to operate, simplicity of design, work and operational efficiency high, damping is obvious, and processing is installed simply, energy efficiency is high, without the elastic gap formula viscous damper used on highway bridge of position correlation, has wide market prospects.
Summary of the invention
For the deficiencies in the prior art, the utility model provides that a kind of structure is simple, easy to operate, simplicity of design, work and operational efficiency is high, damping obviously, processing install simple, energy efficiency is high, without the elastic gap formula viscous damper used on highway bridge of position correlation.
The technical solution of the utility model is achieved in that a kind of elastic gap formula viscous damper used on highway bridge, comprise cylinder barrel, be installed in cylinder barrel and the piston moved axially along cylinder barrel, the piston rod, the left sealing guiding device being separately positioned on piston rod two ends and the right sealing guiding device that are connected as a single entity with piston, be filled in the power consumption liquid between left sealing guiding device and right sealing guiding device, described piston is set with damping ring, damping ring adopts low modulus elastomeric material to make, and damping ring is fixed on the outside of piston by securing member.
The cross section of described inner cavity of cylinder is circular, the cross section of described piston is circular, and the cross section of piston rod is circular, and damping ring is sleeved on the outside of piston, be provided with annular gap between the outer wall of damping ring and inner wall of cylinder, the thickness in this gap is 1 millimeter to 5 millimeters.
The outside of described piston offers the pistion recess cooperatively interacted with damping ring, and the two ends of pistion recess are provided with the build-in flange cooperatively interacted with damping ring, build-in flange offer securing member aperture, and securing member is arranged in securing member aperture.
The inner side of described damping ring is provided with the damping ring projection cooperatively interacted with piston, the two ends of damping ring projection are provided with the build-in notch cooperatively interacted with piston, damping ring projection offers damping ring and fixes aperture, securing member is arranged on damping ring and fixes in aperture.
The width of described damping ring is equal with the width of piston, and the diameter of damping ring is less than the internal diameter of cylinder barrel.
The utility model has following good effect: first, the utility model structure is simple, easy to operate, piston rod is relative to the axially-movable of cylinder barrel, drive piston and the cavity inter-sync campaign between right-left seal guiding device of the damping ring of build-in on piston, extruding power consumption liquid flows through from the gap high speed between damping ring and casing wall, thus in gap, produce viscous shear stress and association compressive stress, this compressive stress meeting compression damping ring, damping ring generation radial contraction is out of shape, respective clearance expands, based on this mechanism, when the raising along with the speed of service, in gap, viscous power consumption flow rate of liquid increases, compressive stress increase corresponding to compressive strain, gap is corresponding increase also, in turn reduce the amplitude that power consumption flow rate of liquid increases, also the amplitude that damping force increases just is significantly reduced, thus increase the turgor degree of hysteresis loop of knowing clearly, improve damper energy efficiency, avoid general Varied clearance formula damper designs difficulty of processing large, damping force bust, the problems such as damper installation requirement is high.
Accompanying drawing explanation
Fig. 1 is internal construction schematic diagram of the present utility model.
Fig. 2 is piston structure schematic diagram of the present utility model.
Fig. 3 is damping ring structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, 2, 3, a kind of elastic gap formula viscous damper used on highway bridge, comprise cylinder barrel 1, be installed on cylinder barrel 1 in and the piston 2 moved axially along cylinder barrel 1, the piston rod 3, the left sealing guiding device 6 being separately positioned on piston rod 3 two ends and the right sealing guiding device 7 that are connected as a single entity with piston 2, be filled in the power consumption liquid 8 between left sealing guiding device 6 and right sealing guiding device 7, described piston 2 is set with damping ring 4, damping ring 4 adopts low modulus elastomeric material to make, and damping ring 4 is fixed on the outside of piston 2 by securing member 5.
The cross section of described cylinder barrel 1 inner chamber is circular, the cross section of described piston 2 is circular, and the cross section of piston rod 3 is circular, and damping ring 4 is sleeved on the outside of piston 2, be provided with annular gap between the outer wall of damping ring 4 and cylinder barrel 1 inwall, the thickness in this gap is 1 millimeter to 5 millimeters.The outside of described piston 2 offers the pistion recess 9 cooperatively interacted with damping ring 4, the two ends of pistion recess 9 are provided with the build-in flange 10 cooperatively interacted with damping ring 4, build-in flange 10 offers securing member aperture 11, securing member 5 is arranged in securing member aperture 11.The inner side of described damping ring 4 is provided with the damping ring projection 12 cooperatively interacted with piston 2, the two ends of damping ring projection 12 are provided with the build-in notch 13 cooperatively interacted with piston 2, damping ring projection 12 offers damping ring and fix aperture 14, securing member 5 is arranged on damping ring and fixes in aperture 14.The width of described damping ring 4 is equal with the width of piston 2, and the diameter of damping ring 4 is less than the internal diameter of cylinder barrel 1.
The utility model comprises cylinder barrel 1, piston 2, piston rod 3, damping ring 4, tightening piece 5, left sealing guiding device 6, right sealing guiding device 7, power consumption liquid 8.Piston 2 is connected to piston rod 3, damping ring 4 is embedded in piston 2 outer ring, and be fixed on piston by tightening piece 5, piston 2 and piston rod 3 and damping ring 4, tightening piece 5 integral installation is inner in cylinder barrel 1, and piston rod 3 is supported at both ends in left sealing guiding device 6 and right sealing guiding device 7, in the cavity between piston and sealing guiding device, be filled with the liquid 8 that consumes energy.Damping ring 4 is made up of low modulus elastomeric material, is mounted on piston 2 outer ring; There is gap between damping ring and casing wall, be used as power consumption liquid communication gap.
Piston rod 3 is relative to the axially-movable of cylinder barrel 1, drive piston 2 and the cavity inter-sync campaign of the damping ring 4 of build-in on piston 2 between left sealing guiding device 6 and right sealing guiding device 7, extruding power consumption liquid 8 flows through from the gap high speed between damping ring 4 and casing wall 1.Thus in gap, producing viscous shear stress and association compressive stress, this compressive stress meeting compression damping ring 4, make damping ring 4 that radial contraction distortion occur, respective clearance expands.Based on this mechanism, when the raising along with the speed of service, in gap, viscous power consumption flow rate of liquid increases, compressive stress increase corresponding to compressive strain, gap is corresponding increase also, in turn reduce the amplitude that power consumption flow rate of liquid increases, also just significantly reduce the amplitude that damping force increases, thus increase the turgor degree of hysteresis loop of knowing clearly, improve damper energy efficiency, avoid general Varied clearance formula damper designs difficulty of processing large, damping force bust, the problems such as damper installation requirement is high.
Claims (5)
1. the elastic gap formula viscous damper used on highway bridge, comprise cylinder barrel (1), to be installed in cylinder barrel (1) and the piston (2) moved axially along cylinder barrel (1), the piston rod (3) be connected as a single entity with piston (2), be separately positioned on left sealing guiding device (6) and the right sealing guiding device (7) at piston rod (3) two ends, be filled in the power consumption liquid (8) between left sealing guiding device (6) and right sealing guiding device (7), it is characterized in that: described piston (2) is set with damping ring (4), damping ring (4) adopts low modulus elastomeric material to make, damping ring (4) is fixed on the outside of piston (2) by securing member (5).
2. the elastic gap formula viscous damper used on highway bridge according to claim 1, it is characterized in that: the cross section of described cylinder barrel (1) inner chamber is for circular, the cross section of described piston (2) is circular, the cross section of piston rod (3) is circular, damping ring (4) is sleeved on the outside of piston (2), be provided with annular gap between the outer wall of damping ring (4) and cylinder barrel (1) inwall, the thickness in this gap is 1 millimeter to 5 millimeters.
3. the elastic gap formula viscous damper used on highway bridge according to claim 1, it is characterized in that: the outside of described piston (2) offers the pistion recess (9) cooperatively interacted with damping ring (4), the two ends of pistion recess (9) are provided with the build-in flange (10) cooperatively interacted with damping ring (4), build-in flange (10) offers securing member aperture (11), securing member (5) is arranged in securing member aperture (11).
4. the elastic gap formula viscous damper used on highway bridge according to claim 1, it is characterized in that: the inner side of described damping ring (4) is provided with the damping ring projection (12) cooperatively interacted with piston (2), the two ends of damping ring projection (12) are provided with the build-in notch (13) cooperatively interacted with piston (2), damping ring projection (12) offers damping ring and fix aperture (14), securing member (5) is arranged on damping ring and fixes in aperture (14).
5. the elastic gap formula viscous damper used on highway bridge according to claim 1, it is characterized in that: the width of described damping ring (4) is equal with the width of piston (2), the diameter of damping ring (4) is less than the internal diameter of cylinder barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150675.4U CN204491402U (en) | 2015-03-17 | 2015-03-17 | A kind of elastic gap formula viscous damper used on highway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520150675.4U CN204491402U (en) | 2015-03-17 | 2015-03-17 | A kind of elastic gap formula viscous damper used on highway bridge |
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| Publication Number | Publication Date |
|---|---|
| CN204491402U true CN204491402U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520150675.4U Withdrawn - After Issue CN204491402U (en) | 2015-03-17 | 2015-03-17 | A kind of elastic gap formula viscous damper used on highway bridge |
Country Status (1)
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| CN (1) | CN204491402U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695321A (en) * | 2015-03-17 | 2015-06-10 | 河南交通职业技术学院 | Elastic gap type viscous damper used on highway bridge |
| CN110685370A (en) * | 2019-10-30 | 2020-01-14 | 株洲时代新材料科技股份有限公司 | Device for improving synchronism of viscous damper |
| CN112128291A (en) * | 2020-09-07 | 2020-12-25 | 东南大学 | Distributed viscous damping energy consumption device and energy consumption method |
-
2015
- 2015-03-17 CN CN201520150675.4U patent/CN204491402U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695321A (en) * | 2015-03-17 | 2015-06-10 | 河南交通职业技术学院 | Elastic gap type viscous damper used on highway bridge |
| CN110685370A (en) * | 2019-10-30 | 2020-01-14 | 株洲时代新材料科技股份有限公司 | Device for improving synchronism of viscous damper |
| CN112128291A (en) * | 2020-09-07 | 2020-12-25 | 东南大学 | Distributed viscous damping energy consumption device and energy consumption method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |