CN203546587U - Damping device of stay cable - Google Patents
Damping device of stay cable Download PDFInfo
- Publication number
- CN203546587U CN203546587U CN201320652843.0U CN201320652843U CN203546587U CN 203546587 U CN203546587 U CN 203546587U CN 201320652843 U CN201320652843 U CN 201320652843U CN 203546587 U CN203546587 U CN 203546587U
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- bearing
- support
- damping device
- bridge
- fixed
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Abstract
The utility model belongs to the field of damping technologies of bridge engineering structures, and particularly relates to a damping device of a stay cable. The damping device comprises a support frame, wherein a transverse axial transmission gear and a bridge cable external damper are fixedly arranged on the upper surface of the support frame, wherein the transverse axial transmission gear comprises a support body, a first support fixed at the top of the support body and a second support connected to the first support, a third support is fixed at the top of an upper case of the bridge cable external damper, two angular points at the bottom of a triangular transmission lever are respectively connected to the second support and the third support, another angular point at the top of the triangular transmission lever is connected to a drive rod, and a cable clamp is fixed on the other end of the drive rod. According to the damping device, through design of the adjustable drive rod, the position adjustment during installation can be provided, and the damping device has the advantages of strong adaptive ability, convenience for installation, simple and reliable structure, simplicity in maintenance and long service life.
Description
Technical field
The utility model belongs to bridge engineering structural damping technical field, specifically a kind of suspension cable damping device.
Background technology
The main load-carrying member of cable stayed bridge is suspension cable.It is large that the feature of drag-line is slenderness ratio, and quality is little, and flexibility is large, the feature that damping is little, and its logarithmic decrement is generally below 0.01.Drag-line very easily produces various vibrations, fatigue failure drag-line, even crossstructure under extraneous excitation.The vibration of cable stayed bridge not only can cause the fatigue failure of drag-line and ground tackle, but also can destroy sheath and noose pipe, accelerates the corrosion rate of drag-line, brings psychological uneasiness to people simultaneously.The variety of problems that the vibration of suspension cable brings generally can expend the cable replacement engineering that huge manpower and materials are carried out drag-line bridge.Therefore the vibration damping of suspension cable just seems very important.Bridge cable external damper is a kind of ideal vibration absorber.But this type of damper will be an angle of 90 degrees with drag-line while installing, when rope and bridge floor inclination angle≤45 are spent, the installation difficulty of bridge cable external damper is large, and the leakage that very easily produces damping fluid, causes damper inefficacy.Existing bridge cable external damper generally can only suppress plane internal vibration simultaneously, and the flat out-of-plane vibration of drag-line is not but controlled.During installation, due to the adjusting of Suo Li, installation self adaptation is poor.
Summary of the invention
The utility model, for the problems referred to above, provides a kind of suspension cable damping device, adopts this device to solve the situation that damper lost efficacy, and can also effectively suppress the various vibrations of drag-line simultaneously.
According to the technical solution of the utility model: a kind of suspension cable damping device, it is characterized in that: comprise bearing support, described bearing support upper surface is fixedly installed laterally around shaft drive, bridge cable external damper, wherein laterally around shaft drive, comprise stake body, be fixed on first bearing at stake body top and be connected in the second bearing on the first bearing, described bridge cable external damper upper box top is fixed with the 3rd bearing, two angle points in triangle transmission levers bottom are connected to described the second bearing, on the 3rd bearing, another angle point of triangle transmission levers top is connected with drive link, the other end of described drive link is fixed with drag-line cord clip.
As further improvement of the utility model, described laterally around shaft drive, bridge cable external damper, both be arranged in parallel and bearing support upper surface.
As further improvement of the utility model, described drive link comprises first order bar, the second level bar being mutually slidably connected, described triangle transmission levers top angle point passes through a shaft support in the mounting groove of first order bar tail end, in described first order bar front end mounting groove, be connected with slide plate, the described slide plate other end is connected in the mounting groove of second level bar.
As further improvement of the utility model, two the axis hole lines of centres in described the first bearing upper end are perpendicular to two axis hole lines of centres of the second bearing.
As further improvement of the utility model, the support body surface of described triangle transmission levers between the 3rd bearing and first order boom end is provided with arc gap.
Technique effect of the present utility model is: adopt triangle transmission levers structure, the displacement equivalence vertical transmission that drag-line is produced is to viscosity shearing type damper, thereby suppress vibration by viscosity shearing type damper, viscosity shearing type damper is designed to vertical placement simultaneously, has avoided the leakage problem of damping fluid; Triangle transmission levers structure of the present utility model bottom is designed with laterally around shaft drive, can effectively make viscosity shearing type damper suppress the various vibrations of drag-line, comprises in plane flat out-of-plane vibration; The utility model is designed with adjustable drive link, and the position adjustment while installing can be provided, and adaptive ability is strong, easy for installation; This apparatus structure is simple and reliable, safeguards simply long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is perspective view of the present utility model.
Fig. 3 is the syndeton schematic diagram of the utility model the first bearing and the second bearing.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is further described.
In Fig. 1 ~ 3, comprise drag-line cord clip 1, drive link 2, first order bar 2-1, second level bar 2-2, slide plate 2-3, triangle transmission levers 3, traverse gear 4, stake body 4-1, the first bearing 4-2, the second bearing 4-3, bridge cable external damper 5, bearing support 6, arc gap 7 etc.
As shown in Fig. 1 ~ 3, the utility model is a kind of suspension cable suspension cable damping device, comprise bearing support 6, described bearing support 6 upper surfaces are fixedly installed laterally around shaft drive 4, bridge cable external damper 5, wherein laterally around shaft drive 4, comprise stake body 4-1, be fixed on the first bearing 4-2 at stake body 4-1 top and be connected in the second bearing 4-3 on the first bearing 4-2, described bridge cable external damper 5 upper box tops are fixed with the 3rd bearing 5-1, two of 3 bottoms of triangle transmission levers angle point is connected to described the second bearing 4-3, on the 3rd bearing 5-1, another angle point of triangle transmission levers 3 tops is connected with drive link 2, the other end of described drive link 2 is fixed with drag-line cord clip 1.
It is described that laterally around shaft drive 4, bridge cable external damper 5, both be arranged in parallel and bearing support 6 upper surfaces.
Described drive link 2 comprises first order bar 2-1, the second level bar 2-2 being mutually slidably connected, described triangle transmission levers 3 top angle points pass through a shaft support in the mounting groove of first order bar 2-1 tail end, in described first order bar 2-1 front end mounting groove, be connected with slide plate 2-3, the described slide plate 2-3 other end is connected in the mounting groove of second level bar 2-2.
Described first two of the bearing 4-2 upper ends axis hole line of centres is perpendicular to two axis hole lines of centres of the second bearing 4-3.
The support body surface of described triangle transmission levers 3 between the 3rd bearing 5-1 and first order bar 2-1 end is provided with arc gap 7.
Triangle transmission levers 3 of the present utility model is a triangular plate with arc gap 7, laterally the first bearing 4-2 in shaft drive 4, the rotating shaft in the second bearing 4-3 vertical setting mutually, assurance can along bridge to vertical bridge to rotation, transmit in drag-line plane and out-of-plane vibration.
Operating principle of the present utility model is as follows: this damping device is fixed on bridge floor, and bridge cable external damper 5 adopts bolt to be mutually rigidly connected with triangle transmission levers 3 and drag-line cord clip 1.Bridge cable external damper 5 its upper boxes and lower box up and down four direction are done shearing motion with the vibration of drag-line.When drag-line produces vibration, triangle transmission levers 3 is just delivered to the energy of generation of vibration bridge cable external damper 5 and does upper and lower shearing motion, during shearing motion, the relative shear campaign in viscous damping liquid of damping plate produces damping force, by kinetic energy energy transform into heat energy.Because this external damper adopts novel viscous damping fluid, viscosity is very high, under very little vibration, just can produce very large damping force, and effectiveness in vibration suppression is remarkable.
Claims (5)
1. a suspension cable damping device, it is characterized in that: comprise bearing support (6), described bearing support (6) upper surface is fixedly installed laterally around shaft drive (4), bridge cable external damper (5), wherein laterally around shaft drive (4), comprise stake body (4-1), be fixed on first bearing (4-2) at stake body (4-1) top and be connected in the second bearing (4-3) on the first bearing (4-2), described bridge cable external damper (5) upper box top is fixed with the 3rd bearing (5-1), two angle points in triangle transmission levers (3) bottom are connected to described the second bearing (4-3), on the 3rd bearing (5-1), another angle point of triangle transmission levers (3) top is connected with drive link (2), the other end of described drive link (2) is fixed with drag-line cord clip (1).
2. according to suspension cable damping device claimed in claim 1, it is characterized in that: described laterally around shaft drive (4), bridge cable external damper (5), both be arranged in parallel and bearing support (6) upper surface.
3. according to suspension cable damping device claimed in claim 1, it is characterized in that: described drive link (2) comprises first order bar (2-1), the second level bar (2-2) being mutually slidably connected, described triangle transmission levers (3) top angle point passes through a shaft support in the mounting groove of first order bar (2-1) tail end, in described first order bar (2-1) front end mounting groove, be connected with slide plate (2-3), described slide plate (2-3) other end is connected in the mounting groove of second level bar (2-2).
4. according to suspension cable damping device claimed in claim 1, it is characterized in that: two of upper ends of described the first bearing (4-2) the axis hole line of centres is perpendicular to two axis hole lines of centres of the second bearing (4-3).
5. according to suspension cable damping device claimed in claim 1, it is characterized in that: the support body surface that described triangle transmission levers (3) is positioned between the 3rd bearing (5-1) and first order bar (2-1) end is provided with arc gap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652843.0U CN203546587U (en) | 2013-10-22 | 2013-10-22 | Damping device of stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652843.0U CN203546587U (en) | 2013-10-22 | 2013-10-22 | Damping device of stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203546587U true CN203546587U (en) | 2014-04-16 |
Family
ID=50464724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320652843.0U Expired - Fee Related CN203546587U (en) | 2013-10-22 | 2013-10-22 | Damping device of stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203546587U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526692A (en) * | 2013-10-22 | 2014-01-22 | 无锡圣丰建筑新材料有限公司 | Stay cable damping device |
| CN106758776A (en) * | 2017-01-19 | 2017-05-31 | 重庆科技学院 | Damping due to rotation formula bridge aseismic devices |
| CN107165049A (en) * | 2017-06-14 | 2017-09-15 | 南昌工程学院 | A kind of vibration absorber in the cable of suspension system for civil engineering structure |
| CN107313349A (en) * | 2017-07-11 | 2017-11-03 | 德阳天元重工股份有限公司 | Bilateral hoist cable arranges shaping pin joint formula cord clip |
-
2013
- 2013-10-22 CN CN201320652843.0U patent/CN203546587U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526692A (en) * | 2013-10-22 | 2014-01-22 | 无锡圣丰建筑新材料有限公司 | Stay cable damping device |
| CN103526692B (en) * | 2013-10-22 | 2016-03-09 | 无锡圣丰建筑新材料有限公司 | Suspension cable damping device |
| CN106758776A (en) * | 2017-01-19 | 2017-05-31 | 重庆科技学院 | Damping due to rotation formula bridge aseismic devices |
| CN106758776B (en) * | 2017-01-19 | 2019-01-04 | 重庆科技学院 | Damping due to rotation formula bridge aseismic devices |
| CN107165049A (en) * | 2017-06-14 | 2017-09-15 | 南昌工程学院 | A kind of vibration absorber in the cable of suspension system for civil engineering structure |
| CN107313349A (en) * | 2017-07-11 | 2017-11-03 | 德阳天元重工股份有限公司 | Bilateral hoist cable arranges shaping pin joint formula cord clip |
| CN107313349B (en) * | 2017-07-11 | 2024-01-26 | 德阳天元重工股份有限公司 | Pin-connected cable clamp for double-side sling arranging and forming |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161022 |