CN106758776B - Damping due to rotation formula bridge aseismic devices - Google Patents
Damping due to rotation formula bridge aseismic devices Download PDFInfo
- Publication number
- CN106758776B CN106758776B CN201710044639.3A CN201710044639A CN106758776B CN 106758776 B CN106758776 B CN 106758776B CN 201710044639 A CN201710044639 A CN 201710044639A CN 106758776 B CN106758776 B CN 106758776B
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- Prior art keywords
- damping
- bridge
- gear mechanism
- planetary gear
- wheel
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of damping due to rotation formula bridge aseismic devices, it is supported on multiple damping wheels on the pedestal jointly including pedestal, by shock-absorbing spring and damper, rolls the support plate of cooperation by multiple damping wheels bearings and with damping wheel and apply the rotary damper of damping action for the rotation to damping wheel；The rotary damper includes planetary gear mechanism and magnetorheological fluid damp mechanism, and the present apparatus, which effectively can block to transmit from bridge pier to bridge in earthquake, to be vibrated.
Description
Technical field
The present invention relates to bridge aseismic devices field, specifically a kind of damping due to rotation formula bridge aseismic devices.
Background technique
Bridge erection is in rivers,lakes and seas, the building for making traffic etc. that can smoothly pass through, referred to as bridge.Bridge generally by
Superstructure, substructure and attached structure composition, superstructure refer mainly to bridge span structure and support system；Substructure packet
Include abutment, bridge pier and basis；Attached structure then refers to transition slab at bridge head, truncated cone banking, shore protection, training works etc..
Bridge refers to as road the building built across natural or cultural obstacle.Bridge is generally by five big portions
Part and five widgets composition, five big components refer to that bridge bears the spanning superstructure of automobile or other vehicle transport loads under
Portion's structure, be bridge structure safe guarantee include bridge span structure (or bridge opening structure superstructure), bridge pad system,
Bridge pier, cushion cap, digs a well or pile foundation at abutment.Five widgets refer to component directly related with bridge service function, and the past is known as bridge
Surface construction includes deck paving, waterproof and water drainage system, railing, expansion joint, lighting.There are also ends of the bridge for large bridge accessory structure
Fort, the setting such as access bridge.
With the development of transportation and the raising of construction standard, support in bridge and Other Engineering not only
It plays a supporting role, but also has the function of vibration damping, resistance to plucking, release moment of flexure, resist displacement.Currently, occurring often in advance in earthquake
The reason of the case where bridge plate processed falls from bridge pier beam, bridge plate falls from bridge pier beam is, when an earthquake occurs,
Very big horizontal force and vertical force are produced, makes precast bridge plate that horizontal displacement and upper and lower displacement occur, when displacement is more than pre-
Bridge plate processed on bridge pier shelve width after, bridge plate will fall, at this point, not only bridge is damaged, Er Qieqiao
The upper, pedestrian under bridge and vehicle will appear serious accident.
Therefore, it is necessary to a kind of damping due to rotation formula bridges that can effectively block in earthquake from bridge pier to bridge transmitting vibration
Damping device.
Summary of the invention
In view of this, providing one kind can be effective in earthquake the purpose of the present invention is overcoming defect in the prior art
Block the damping due to rotation formula bridge aseismic devices from bridge pier to bridge transmitting vibration.
Damping due to rotation formula bridge aseismic devices of the invention, including pedestal, supported jointly by shock-absorbing spring and damper
In on the pedestal damping wheel, supported by the damping wheel and with damping wheel roll cooperation support plate and for pair
The rotation of damping wheel applies the rotary damper of damping action；The rotary damper includes planetary gear mechanism and magnetorheological fluid
Damping mechanism；The magnetorheological fluid damp mechanism includes that damping shaft, rotatable sealing are coated at the barrel-type casing of the damping shaft
And it is wound in the induction coil outside the barrel-type casing；The cylinder outer race is filled with magnetorheological fluid, is located at the cylinder outer race
Gear piece is fixed on intracorporal damping shaft shaft part；The outer gear ring transmission connection of the planetary gear mechanism is in the damping wheel, row
The sun gear transmission connection of star gear mechanism is in the damping shaft, and the planet carrier of planetary gear mechanism is by can be in a manner of clutch and institute
State pedestal connection；
Further, the shell of the planetary gear mechanism is fixed on the pedestal, and the planet carrier outer surface is equipped with positioning
Slot, the inner walls of the planetary gear mechanism are equipped with blind hole, and steel ball and described for pressing to steel ball is equipped in the blind hole
The spring of locating slot；
Further, the outer gear ring of the planetary gear mechanism is connected to the damping wheel by universal drive festival；
Further, the gear piece is equipped with damping through-hole；
Damping due to rotation formula bridge aseismic devices of the invention further include the controller for controlling induction coil electric current.
The beneficial effects of the present invention are: damping due to rotation formula bridge aseismic devices of the invention, pedestal can be fixed on bridge pier,
Support plate is used to support bridge, and support plate is supported by multiple damping wheels simultaneously, and damping wheel passes through damper and damping spring edge
Vertical direction bearing, to realize that vehicle of the support plate in the buffering and damping action of vertical direction, bridge causes bridge small
When amplitude vibrations, bridge will drive support plate to vibrate in the horizontal direction, this rotates driving damping wheel, and damping wheel passes through planet tooth
It takes turns mechanism and the revolving speed of damping wheel is amplified into (planet carrier is engaged with pedestal at this time is kept fixed it), and damping shaft is driven to rotate,
Barrel-type casing is securable to bridge pier, and damping shaft is rotated relative to barrel-type casing, effect of the gear piece on damping shaft in magnetorheological fluid
Lower generation damping force, the damping force will hinder the rotation of damping wheel and the finally horizontal vibration by a small margin of obstruction bridge, work as generation
When earthquake, ground drives bridge pier that violent oscillatory motion occurs, and the horizontal movement of bridge and bridge pier will drive damping wheel rotation, and go at this time
The planet carrier of star gear mechanism and base-separation, planet carrier is free to rotate, therefore the rotation of damping wheel will only drive planet carrier
Idle running, damping wheel not will receive any damping action, at this point, the vibration of bridge pier will not be passed up to bridge, guarantee that bridge exists
Destruction is not will receive in earthquake.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of rotary damper of the invention；
Fig. 3 is the structural schematic diagram of planetary gear mechanism of the invention；
Fig. 4 is the structural schematic diagram of magnetorheological fluid damp mechanism of the invention；
Fig. 5 is the enlarged drawing in Fig. 3 at A.
Specific embodiment
Fig. 1 is the structural diagram of the present invention；Fig. 2 is the structural schematic diagram of rotary damper of the invention；Fig. 3 is this hair
The structural schematic diagram of bright planetary gear mechanism 6；Fig. 4 is the structural schematic diagram of magnetorheological fluid damp mechanism 7 of the invention, is such as schemed
It is shown, 5 damping device of damping due to rotation formula bridge of the present embodiment, including pedestal 1, propped up jointly by damping spring 8 and damper
Hold on the pedestal 1 damping wheel 3, by the damping wheel 3 support and with damping wheel 3 roll cooperation support plate 2 and
Apply the rotary damper of damping action for the rotation to damping wheel 3；The rotary damper includes 6 He of planetary gear mechanism
Magnetorheological fluid damp mechanism 7；The magnetorheological fluid damp mechanism 7 is coated at the damping including damping shaft 16, rotatable sealing
The barrel-type casing 18 of axis 16 and the induction coil 17 being wound in outside the barrel-type casing 18；Filled with magnetic in the barrel-type casing 18
Rheology liquid is fixed with gear piece 19 on 16 shaft part of damping shaft in the barrel-type casing 18；Outside the planetary gear mechanism 6
The transmission connection of gear ring 11 is in the damping wheel 3, and the transmission connection of sun gear 15 of planetary gear mechanism 6 is in the damping shaft 16, row
The planet carrier 12 of star gear mechanism 6 with the pedestal 1 can connect in a manner of clutch；Pedestal 1 can be fixed on bridge pier 4, support
Plate 2 is used to support bridge 5, and support plate 2 is supported by multiple damping wheels 3 simultaneously, and damping wheel 3 passes through damper and damping spring edge
Vertical direction bearing, to realize that vehicle of the support plate 2 in the buffering and damping action of vertical direction, bridge 5 causes bridge 5
When vibrating by a small margin, bridge 5 will drive support plate 2 to vibrate in the horizontal direction, this rotates driving damping wheel 3, and damping wheel 3 passes through
The revolving speed of damping wheel 3 is amplified (planet carrier 12 is engaged with pedestal 1 at this time is kept fixed it) by planetary gear mechanism 6, and is driven
Damping shaft 16 rotates, and barrel-type casing 18 is securable to bridge pier 4, and damping shaft 16 is rotated relative to barrel-type casing 18, on damping shaft 16
Gear piece 19 generate damping force under the action of magnetorheological fluid, which will hinder the rotation of damping wheel 3 and finally hinder bridge
The horizontal vibration by a small margin of beam 5, when an earthquake occurs, ground drive bridge pier 4 that violent oscillatory motion, the water of bridge 5 and bridge pier 4 occurs
Flat movement will drive damping wheel 3 to rotate, and the planet carrier 12 of planetary gear mechanism 6 is separated with pedestal 1 at this time, and planet carrier 12 can be free
Rotation, therefore the rotation of damping wheel 3 only will drive planet carrier 12 to dally, damping wheel 3 not will receive any damping action, at this point,
The vibration of bridge pier 4 will not be passed up to bridge 5, guarantee that bridge 5 not will receive destruction in earthquake.
In the present embodiment, the shell 10 of the planetary gear mechanism 6 is fixed on the pedestal 1,12 appearance of planet carrier
Face is equipped with locating slot, and locating slot is the arc groove cooperated with steel ball 14, and 10 inner wall of shell of the planetary gear mechanism 6 is equipped with blind
Hole, the blind hole is interior to be equipped with steel ball 14 and the spring 13 for steel ball 14 to be pressed to the locating slot, and the generation of bridge 5 is shaken by a small margin
When dynamic, a part of steel ball 14 is pressed into locating slot by spring 13, and pedestal 1, shell 10 and planet carrier 12 are kept fixed at this time, resistance
Buddhist nun's wheel 3 will drive damping shaft 16 rotate by sun gear 15, when an earthquake occurs, damping wheel 3 by high-speed rotation, steel ball 14 will gram
The pressure for taking spring 13 skids off the locating slot, and planet carrier 12 will dally at this time, and damping wheel 3 not will receive any damping and make
With the horizontal vibration of bridge pier 4 is transmitted without normal direction bridge 5, and bridge 5 is avoided to destroy in vibration processes.
In the present embodiment, the outer gear ring 11 of the planetary gear mechanism 6 is connected to the damping by universal driving device
Wheel 3；The universal driving device includes transmission shaft, and the both ends of the drive shaft passes through candan universal joint connection planetary gear respectively
The outer ring 11 of mechanism 6 and damping wheel 3；Realize that damping wheel 3 can still incite somebody to action during moving up and down using universal driving device
Power is transferred to planetary gear mechanism 6.
In the present embodiment, the gear piece 19 is equipped with damping through-hole；When damping shaft 16 rotates, magnetorheological fluid can pass through damping
Through-hole realizes damping action, settable check valve on through-hole is damped, so as to adjust the damping force size of different directions.
5 damping device of damping due to rotation formula bridge of the present embodiment further includes the control for controlling 17 electric current of induction coil
Device controls the electric current of induction coil 17 by controller, to control the damping force of damping wheel 3.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (4)
1. a kind of damping due to rotation formula bridge aseismic devices, it is characterised in that: including pedestal, by shock-absorbing spring and damper it is common
The damping wheel that is supported on the pedestal is supported by the damping wheel and rolls the support plate of cooperation with damping wheel and be used for
Apply the rotary damper of damping action to the rotation of damping wheel；The rotary damper includes planetary gear mechanism and magnetorheological
Liquid damping mechanism；The magnetorheological fluid damp mechanism includes that damping shaft, rotatable sealing are coated at the cylinder outer race of the damping shaft
Body and the induction coil being wound in outside the barrel-type casing；The cylinder outer race is filled with magnetorheological fluid, is located at the tubular
Gear piece is fixed on the intracorporal damping shaft shaft part of shell；The outer gear ring of the planetary gear mechanism is sequentially connected in the damping wheel,
The sun gear transmission connection of planetary gear mechanism in the damping shaft, the planet carrier of planetary gear mechanism by can in a manner of clutch with
The pedestal connection；
The shell of the planetary gear mechanism is fixed on the pedestal, and the planet carrier outer surface is equipped with locating slot, the planet
The inner walls of gear mechanism are equipped with blind hole, are equipped with steel ball and the bullet for steel ball to be pressed to the locating slot in the blind hole
Spring.
2. damping due to rotation formula bridge aseismic devices according to claim 1, it is characterised in that: the planetary gear mechanism
Outer gear ring is connected to the damping wheel by universal driving device.
3. damping due to rotation formula bridge aseismic devices according to claim 2, it is characterised in that: the gear piece is equipped with damping
Through-hole.
4. damping due to rotation formula bridge aseismic devices according to claim 3, it is characterised in that: further include for controlling induction
The controller of coil current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044639.3A CN106758776B (en) | 2017-01-19 | 2017-01-19 | Damping due to rotation formula bridge aseismic devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710044639.3A CN106758776B (en) | 2017-01-19 | 2017-01-19 | Damping due to rotation formula bridge aseismic devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758776A CN106758776A (en) | 2017-05-31 |
| CN106758776B true CN106758776B (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710044639.3A Expired - Fee Related CN106758776B (en) | 2017-01-19 | 2017-01-19 | Damping due to rotation formula bridge aseismic devices |
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| CN (1) | CN106758776B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330814B (en) * | 2018-02-10 | 2018-11-20 | 郑州航空工业管理学院 | Buffer the bridge earthquake resistance device of energy dissipating |
| CN108360368B (en) * | 2018-02-10 | 2018-11-27 | 郑州航空工业管理学院 | A kind of multistage antidetonation bridging apparatus |
| CN109577181B (en) * | 2018-12-21 | 2021-01-01 | 黑龙江建筑职业技术学院 | Damping support for bridge |
| CN110529567B (en) * | 2019-09-25 | 2024-05-07 | 大连理工大学 | Variable acceleration curved surface helical gear transmission mechanism for variable speed mass damping system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303450A (en) * | 1996-05-10 | 1997-11-25 | Akebono Brake Res & Dev Center Ltd | Break control system |
| CN103189666A (en) * | 2010-11-04 | 2013-07-03 | 丰田自动车株式会社 | Dynamic damper device |
| CN203546587U (en) * | 2013-10-22 | 2014-04-16 | 无锡圣丰建筑新材料有限公司 | Damping device of stay cable |
| CN104033534A (en) * | 2013-03-08 | 2014-09-10 | 奥迪股份公司 | Electromechanical Damper |
| CN105544566A (en) * | 2016-01-25 | 2016-05-04 | 重庆工商职业学院 | Buffer damping anchor stock |
| CN205639461U (en) * | 2016-05-27 | 2016-10-12 | 重庆科技学院 | Vibration damping and isolation system |
| CN206486801U (en) * | 2017-01-19 | 2017-09-12 | 重庆科技学院 | Damping due to rotation formula bridge vibrating isolation system |
-
2017
- 2017-01-19 CN CN201710044639.3A patent/CN106758776B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09303450A (en) * | 1996-05-10 | 1997-11-25 | Akebono Brake Res & Dev Center Ltd | Break control system |
| CN103189666A (en) * | 2010-11-04 | 2013-07-03 | 丰田自动车株式会社 | Dynamic damper device |
| CN104033534A (en) * | 2013-03-08 | 2014-09-10 | 奥迪股份公司 | Electromechanical Damper |
| CN203546587U (en) * | 2013-10-22 | 2014-04-16 | 无锡圣丰建筑新材料有限公司 | Damping device of stay cable |
| CN105544566A (en) * | 2016-01-25 | 2016-05-04 | 重庆工商职业学院 | Buffer damping anchor stock |
| CN205639461U (en) * | 2016-05-27 | 2016-10-12 | 重庆科技学院 | Vibration damping and isolation system |
| CN206486801U (en) * | 2017-01-19 | 2017-09-12 | 重庆科技学院 | Damping due to rotation formula bridge vibrating isolation system |
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| CN106758776A (en) | 2017-05-31 |
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