CN200981971Y - Built-in type hydraulic damper - Google Patents
Built-in type hydraulic damper Download PDFInfo
- Publication number
- CN200981971Y CN200981971Y CN 200620073143 CN200620073143U CN200981971Y CN 200981971 Y CN200981971 Y CN 200981971Y CN 200620073143 CN200620073143 CN 200620073143 CN 200620073143 U CN200620073143 U CN 200620073143U CN 200981971 Y CN200981971 Y CN 200981971Y
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- CN
- China
- Prior art keywords
- steel pipe
- damper
- hydraulic damper
- seat
- pipe bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- 239000000725 suspension Substances 0.000 claims description 42
- 239000000806 elastomer Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000013016 damping Methods 0.000 abstract description 24
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013017 mechanical damping Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
A built-in hydraulic damper for decreasing vibration of bridge off-angle standing rope comprises a rubber connector, a holder seat, a dowel pin, a hydraulic damper, a damper support seat, an upper seat of steel pipe, a ring flange, a connecting bolt, a lower seat of steel pipe and a rain cover, wherein the holder seat is connected with the off-angle standing rope through rubber connector, and the one terminal of the hydraulic damper is connected with the holder seat, and the other terminal of the hydraulic damper is connected with the damper support seat which is on the inner wall of the upper seat of steel pipe, further the upper seat of steel pipe is connected with the lower seat of steel pipe through the ring flange and the connecting bolt, also the lower seat of steel pipe is arranged and fixed on the bridge surface. The vibration force of the off-angle standing rope is transmitted to the hydraulic damper through the rubber connector and the holder seat which is supported by the upper seat of steel pipe, and provides damping force on the off-angle standing rope, and changes the original vibration mode of the off-angle standing rope, so achieves the purpose of restraining vibration of the standing rope.
Description
Affiliated technical field
The utility model relates to a kind of built-in hydraulic damper that is used to be installed on cable stayed bridge suspension cable or the sling of suspension bridge, and its major function is in order to reduce the suspension cable in running order or the Oscillation Amplitude and the acceleration of hoist cable effectively.
Background technology
With the cable stayed bridge is example, suspension cable is the important stressed hardware of cable stayed bridge upper tank beam, the making of suspension cable and mounting cost generally account for 10%～25% of cable stayed bridge total cost, if shortening or accidental damage significantly in the normal application life of suspension cable, will cause enormous economic loss and bad social influence, so suspension cable energy-eliminating shock-absorbing technology is again the crucial application technology of cable stayed bridge.
Suspension cable places among the extraneous natural environment for a long time, stand to expose to the sun and rain, the continuous test of high temperature, severe cold and day and night temperature, and its condition of work is abominable unusually.Particularly suspension cable very easily produces vibration under the comprehensive function of factors such as wind and rain load and vehicular impact load; the destruction that the additional force that is produced by vibration very easily causes the overtired and outer protection layer of suspension cable; so in the design or use of big-and-middle-sized cable stayed bridge suspension cable; should consider on the appropriate location of suspension cable, select and install corresponding energy-eliminating shock-absorbing damper for use.Suspension cable energy-eliminating shock-absorbing damping unit (being called for short " damper ") is mounted in the mill auxiliaries device on the suspension cable, its mainly act on be absorb or conversion because of the energy that various natural causes cause Inclined Cable Vibration to produce, guarantee suspension cable safe operation under design conditions.
The damping measure that is used for energy dissipating of cable stayed bridge suspension cable and vibration damping mainly is divided into aerodynamic Measures, auxiliary (rope) rope measure, mechanical damping measure three major types type; Wherein the mechanical damping measure can be divided into built-in damping unit and external damping unit two big series again.At present both at home and abroad the built-in damping unit of widespread usage mainly contains fluid pressure type damper, rubber type damper, three kinds of citation forms of metal friction chip damper on the cable stayed bridge suspension cable, their common feature is exactly the vibration displacement that utilizes suspension cable, produce the damping force opposite with the Inclined Cable Vibration direction of motion, remake conversely and be used for suspension cable, thereby reach the purpose that suppresses Inclined Cable Vibration; The core component of internal damper generally is installed between suspension cable and the steel pipe bearing, and the difference between the different internal dampers is that mainly its form or machine work principle that produces damping force has nothing in common with each other.Through consulting built-in energy dissipating and the scientific achievement of damper or the technical data of product that is used on the cable stayed bridge, now briefly introduce the operating principle of representative built-in and external hydraulic damper and the result of use of preliminary investigation as follows both at home and abroad:
The fluid pressure type damper is otherwise known as by " oil damper ", and this damper mainly is made up of connector, hydraulic damper and steel pipe bearing etc.; The general work principle of fluid pressure type damper: the shell of hydraulic damper is fixed on steel pipe bearing outside, suspension cable links to each other with the metallic piston bar of hydraulic damper by connector, the vibration displacement of suspension cable is broken the original pressure balance in hydraulic damper interior metal piston two ends and the resistance that thereupon produces, be the damping force of damper, after this damping force reacts on suspension cable, can reach the purpose of suspension cable vibration damping.If fluid pressure type damper combined sensor, controller and oil pump use, promptly be called " active spoiler " or be called " intelligent damper "; For damper without external power supply and oil pump, generally be called " passive type damper " or " plain edition damper ", the fluid pressure type damper in most cases is made into the external damper.With France and damper professional equipment manufacturer such as Switzerland produce and the characteristic of this series products of providing as a reference, its advantage is that the size adjustment of damping force is easier to, shortcoming is the overall appearance of volume considerable influence city cable stayed bridge.
External damper general work principle: this damper mainly is made up of connector, hydraulic damper and metal machine frame etc.; The metal shell great majority of hydraulic damper adopt bolt to be fixed on the metallic support (or title " pedestal "), its piston rod links to each other with suspension cable by connector, the vibration of suspension cable conducts to hydraulic damper by connector, the damping force that hydraulic damper provides reacts on suspension cable, thereby reaches the purpose of vibration damping.The core component of external damper adopts hydraulic damper usually, also can select magnetorheological parts or be made up of the mechanical spring part for use.The installation floor space of external damper is bigger.
Summary of the invention
The stressed moment of present hydraulic damper is long in order to overcome, the structural instability problem, and the utility model provides a kind of brand-new without the more perfect built-in hydraulic damper of the integral damping mechanical performance of power supply.
The technical scheme that the utility model technical solution problem is adopted is: in built-in hydraulic damper inside, supporting base is connected with suspension cable by elastomer connector, one end of hydraulic damper by the power transmission pin be connected with supporting base, the other end is connected with damper bearing in the last steel pipe bearing, last steel pipe bearing is connected by flange with following steel pipe bearing, following steel pipe bearing is installed on the bridge floor, and rain cover is connected with last steel pipe bearing by bolt.When suspension cable produces vibration displacement, angle (α) between hydraulic damper axial line and the suspension cable center line is corresponding, and change has taken place, at this moment the vibration force of suspension cable is passed to the hydraulic damper piston rod by elastomer connector and supporting base, the reset pressure disequilibrium that causes its piston end surface, hydraulic damper is to keep the resistance that equilibrium state produces, be the damping force of built-in hydraulic damper, after this damping force acts on suspension cable, can reach the purpose of suspension cable vibration damping, the vibration displacement of suspension cable and acceleration are big more, and the damping force that damper produces is just big more; Because the axial line of hydraulic damper exists with the suspension cable center line angle (α) is installed again, thereby is shared and reduced the vertical vibration force that acts on the steel pipe bearing originally, improved and improved the mechanical characteristic and the resistance to overturning of upper and lower steel pipe bearing; Rain cover is installed in steel pipe bearing upper port, prevents that damper from suffering rain erosion.
The beneficial effects of the utility model are: dwindled the volume of damper effectively, optimized and the vibration damping mechanical characteristic that has improved damper, improved the damping action to the various mode of oscillations of suspension cable, finally realized the purpose of energy-eliminating shock-absorbing.The all material of built-in hydraulic damper and device all can be realized buying, processing and make that it is simple in structure at home, and installation and working service are simple and easy, dependable performance and long service life.Because large-scale suspension cable damping unit that can substituting import one,, increased the kind that domestic big-and-middle-sized cable stayed bridge is selected the suspension cable damper simultaneously so following one obtain good economic benefits and social benefit surely.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a sectional structural map of the present utility model.
Among Fig. 1: 1. elastomer connector, 2. supporting base, 3. power transmission pin, 4. hydraulic damper, 5. damper bearing, 6. rain cover, 7. connecting bolt is 8. gone up the steel pipe bearing, and 9. flange 10. plays the steel pipe bearing, and 11, bridge floor, 12, suspension cable.
The specific embodiment
In the embodiment shown in fig. 1, built-in hydraulic damper is connected and composed by elastomer connector (1), supporting base (2), power transmission pin (3), hydraulic damper (4), damper bearing (5), last steel pipe bearing (8), flange (9), following steel pipe bearing (10), rain cover (6), connecting bolt (7).Supporting base (2) is connected with suspension cable (12) by elastomer connector (1); One end of hydraulic damper (4) is connected with supporting base (2) by power transmission pin (3), and the other end is connected with damper bearing (5) on last steel pipe bearing (8) inwall; Last steel pipe bearing (8) is connected by flange (9) with following steel pipe bearing (10); Following steel pipe bearing (10) is installed on the bridge floor (11); Rain cover (6) is connected with last steel pipe bearing (8) by connecting bolt (7).
In the embodiment shown in fig. 1, elastomer connector (1), supporting base (2), power transmission pin (3), hydraulic damper (4), damper bearing (5) are installed in steel pipe bearing (8) inside; One cover built-in hydraulic damper can amount to 20 hydraulic dampers (4) and forms by being no more than 10 pairs, built-in hydraulic damper damping force adjusting range is: 0.5～100kN, installation angle (α) control range between hydraulic damper (4) axial line and suspension cable (12) center line: 0 °＜α≤90 °; The axle of supporting base (2) can 360 ° of rotations; The factory length of last steel pipe bearing (8) generally is controlled in the 10m, and the factory length of following steel pipe bearing (10) is not more than 20m, the diameter phi control range of last steel pipe bearing (8) and following steel pipe bearing (10): 10cm≤diameter phi≤200cm.
Claims (2)
1, a kind of built-in hydraulic damper, by elastomer connector, supporting base, the power transmission pin, hydraulic damper, the damper bearing, last steel pipe bearing, flange, connecting bolt, following steel pipe bearing, rain cover connects and composes, it is characterized in that: supporting base is connected with suspension cable by elastomer connector, one end of hydraulic damper is connected with supporting base by the power transmission pin, the other end is connected with damper bearing on the last steel pipe bearing inwall, last steel pipe bearing is connected with connecting bolt by flange with following steel pipe bearing, following steel pipe bearing is installed on the bridge floor, and rain cover is connected with last steel pipe bearing.
2, built-in hydraulic damper according to claim 1 is characterized in that elastomer connector, supporting base, power transmission pin, hydraulic damper, damper bearing are installed in steel pipe bearing inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073143 CN200981971Y (en) | 2006-05-08 | 2006-05-08 | Built-in type hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073143 CN200981971Y (en) | 2006-05-08 | 2006-05-08 | Built-in type hydraulic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200981971Y true CN200981971Y (en) | 2007-11-28 |
Family
ID=38909130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620073143 Expired - Fee Related CN200981971Y (en) | 2006-05-08 | 2006-05-08 | Built-in type hydraulic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200981971Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545244B (en) * | 2009-04-27 | 2010-12-08 | 江苏法尔胜新日制铁缆索有限公司 | Stay cable built-in damper with adaptable cable eccentricity and self-locking function |
| CN102486038A (en) * | 2010-12-01 | 2012-06-06 | 上海方济减震器材有限公司 | Built-in rubber hydraulic damper for guy cable |
| CN102733303A (en) * | 2012-07-06 | 2012-10-17 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN103924517A (en) * | 2014-04-30 | 2014-07-16 | 智性科技南通有限公司 | Damping vibration attenuation frame for sling |
| CN106356161A (en) * | 2016-10-13 | 2017-01-25 | 国家电网公司 | Viscous damping shielding ring and manufacturing method thereof |
-
2006
- 2006-05-08 CN CN 200620073143 patent/CN200981971Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545244B (en) * | 2009-04-27 | 2010-12-08 | 江苏法尔胜新日制铁缆索有限公司 | Stay cable built-in damper with adaptable cable eccentricity and self-locking function |
| CN102486038A (en) * | 2010-12-01 | 2012-06-06 | 上海方济减震器材有限公司 | Built-in rubber hydraulic damper for guy cable |
| CN102733303A (en) * | 2012-07-06 | 2012-10-17 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN102733303B (en) * | 2012-07-06 | 2015-01-14 | 巨力索具股份有限公司 | Bending restrictor for stay cable of bridge |
| CN103924517A (en) * | 2014-04-30 | 2014-07-16 | 智性科技南通有限公司 | Damping vibration attenuation frame for sling |
| CN103924517B (en) * | 2014-04-30 | 2015-10-28 | 智性科技南通有限公司 | A kind of damping vibration attenuation frame for hoist cable |
| CN106356161A (en) * | 2016-10-13 | 2017-01-25 | 国家电网公司 | Viscous damping shielding ring and manufacturing method thereof |
| CN106356161B (en) * | 2016-10-13 | 2017-08-29 | 国家电网公司 | Viscous damping formula shading ring and preparation method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Ding Meilin Document name: Notification of Termination of Patent Right |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |