CN108360701A - A kind of novel unidirectional friction damper - Google Patents
A kind of novel unidirectional friction damper Download PDFInfo
- Publication number
- CN108360701A CN108360701A CN201810042496.7A CN201810042496A CN108360701A CN 108360701 A CN108360701 A CN 108360701A CN 201810042496 A CN201810042496 A CN 201810042496A CN 108360701 A CN108360701 A CN 108360701A
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- China
- Prior art keywords
- transmission shaft
- ratchet
- drive link
- subplate
- mainboard
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of novel unidirectional friction dampers, including outer barrel, band gear-driving rod, ratchet, lubrication groove, transmission shaft, mainboard, subplate, friction plate；The high-strength bolt of pretightning force needed for rubbing between mainboard and subplate is provided.When structural elements is deformed under geological process, the drive link of unidirectional friction damper is driven to move up and down.When drive link moves upwards, ratchet rotates clockwise, ratchet internal tooth cannot block pawl, ratchet cannot drive lubrication groove to rotate, lubrication groove cannot drive transmission shaft to rotate, and transmission shaft can not drive mainboard to rotate, and mainboard can not be with friction plate friction, damping force is not generated at this time, can avoid component compressive buckling or destruction；When drive link moves downward, ratchet rotates counterclockwise, and ratchet internal tooth is seized pawl, lubrication groove rotation, lubrication groove is driven to drive transmission shaft rotation, the mainboard rotation to be fixed on transmission shaft, it just rubs under certain pretightning force with friction plate, generates damping force, dissipation seismic energy.
Description
Technical field
Present invention relates particularly to a kind of novel unidirectional friction dampers, belong to civil engineering structure energy-dissipating and shock-absorbing technology neck
Domain.
Background technology
It is middle in structure to there is many tensional elements, but there is no the energy dissipatings being applicable in pull rod system special secondary school door to subtract at present
Shake method.Common damper is used in tensional element, under geological process, the only component of under tension under normal circumstances
It may be under pressure, such component is likely to compressive buckling.And by such unidirectional friction damper in tensional element
When, although may be pressurized in geological process lower member, once it is pressurized, one-way damper works at once, release component
In pressure, therefore component buckling will not be caused, component can be designed fully according to tensional element.Application aspect, it is high-rise at present
Building, high-rise building are more and more, and the building enclosure of such building mostly uses curtain wall system, and energy dissipating of the curtain wall under earthquake subtracts
Shake even lacks effective measures, and curtain wall sunpender can utilize this unidirectional friction damper as tensional element, improves curtain wall
Damping performance under geological process.In addition, suspended structure is as a kind of novel structure type, earthquake damping performance is very
It is important, and such unidirectional friction damper is installed on the tensional element of suspended structure, there will be good energy-dissipating and shock-absorbing effect
Fruit.
Invention content
The purpose of the present invention is to provide a kind of unidirectional friction dampers that construction is succinct, can pass through simple mode
Industrialized production is carried out, is applied in structure tensional element, generates good energy-dissipating and shock-absorbing effect.
The novel unidirectional friction damper of one kind proposed by the present invention, including it is outer barrel 101, drive link 102, ratchet 103, interior
Wheel 104 and rubbing device 106, wherein：
Ratchet includes ratchet external gear 1031, ratchet internal gear 1032 and pawl 1033, and ratchet external gear 1031 is placed in ratchet
Outside gear 1032, pawl 1033 is installed in lubrication groove 104；Outer barrel 101 is cylinder or rectangle cylinder, open top, opening
The both sides at position are equipped with yielding rubber pad 1011；Drive link 102 is equipped with drive link limiting device 1021 and gear 1022；Transmission
The opening position of outer barrel 101, the ratchet external gear 1031 that drive link 102 passes through gear 1022 and ratchet 103 are stretched into 102 one end of bar
Engagement, is driven；Transmission shaft 105 is equipped at the axle center of lubrication groove 104, transmission shaft 105 is supported on outer tube wall and rubbing device 106
On subplate 1063；Two panels rubbing device 106 is each passed through transmission shaft 105, and positioned at the both sides of ratchet.
In the present invention, drive link 102 uses steel, and cross sectional shape is without particular/special requirement, such as round, rectangle, gear 1022
Positioned at one section of its bottom；Transmission limit device 1021 on drive link plays the stroke of limitation drive link.
In the present invention, lubrication groove 104 is installed on transmission shaft 105, and section is annular, and recess is provided at the inner ring of lubrication groove 104；
Casting lug thereon is equipped in transmission shaft 106, the casting lug thereon and inner ring recess match, and the two is just agreed with, and inner ring can drive biography
Moving axis.Recess shape is without particular/special requirement.
In the present invention, the rubbing device includes mainboard, subplate, friction plate and high-strength bolt, and mainboard is annular plate,
It is just connected on transmission shaft；Subplate is fixed in outer barrel bottom, the position trepanning that subplate intersects with transmission shaft；Friction plate is located at mainboard
Between subplate, it is therefore an objective to improve the performance of friction energy-dissipating；High-strength bolt sequentially passes through mainboard, friction plate, subplate and outer barrel,
It is combined into an entirety by four, provides the pretightning force needed for friction energy-dissipating, size is adjustable.
In the present invention, transmission shaft position is the leaving certain gaps uncovered by the economic plan on the direction of ratchet plane, outer tube wall, transmission shaft installation
In outer tube wall and it is fixed on the subplate of outer barrel bottom.
In the present invention, mainboard is just connected to transmission shaft by welding, and form can be annular or rectangle etc., therefore mainboard
Transmission shaft is followed to rotate.
In the present invention, subplate is just connected to outer barrel bottom by welding, and the position that subplate intersects with transmission shaft is pre- on subplate
Circular hole is stayed, is passed through for transmission shaft.Therefore, transmission shaft is just contacted with subplate, between the two merely by frictional force phase
Interaction, without other connections.
It is friction plate between mainboard and subplate in the present invention, copper coin or other materials, mesh may be used in friction plate
Be enhancing friction, ensure frictional force it is uniform and stable so that energy-dissipating and shock-absorbing effect is more preferable.
In the present invention, there are holes for mainboard, subplate, friction plate corresponding position, and so that high-strength bolt passes through, nut is divided into
Washer, it is therefore an objective to ensure stable pretightning force.
Beneficial effects of the present invention are as follows：
The maximum innovation of the novel unidirectional friction damper is to improve internal messing ratchet configuration and gear drive one is started shipment
It uses in friction damper, when realizing drive link and being moved along a direction（Component is pressurized）, do not generate damping force；Transmission
When bar is moved along another direction（Component tension）, damping force is generated, realizes friction energy-dissipating.It is specific as follows：
1）Avoid earthquake lower member buckling.Tensional element is under normal circumstances only by pulling force, not by pressure, therefore is designed by pull rod
The problem of there is no rod piece compressive bucklings.But under earthquake course under cyclic loading, compression member still is possible to be pressurized, and
The case where generating buckling.This can not be solved the problems, such as using normal damper, but use such unidirectional friction damper
Afterwards, even if rod piece is pressurized under earthquake, the internal tooth back due to check pawl in ratchet slides back to original position, does not drive lubrication groove and transmission
Shaft rotation is dynamic, therefore does not generate frictional force, i.e., no damping force, therefore avoids component compressive buckling, and component is prevented to receive destruction.
2）It is adjustable.Damping force is adjustable：The big of damping force can be adjusted by adjusting the pretightning force of high-strength bolt
It is small.
3）Easily design.As long as situations such as quantity for slightly changing the size, component that construct, designs difference
The damper of parameter.About stroke：The stroke of damper can be by changing drive link number of gears, gear size, two groups of biographies
Distance of lever limiting device etc. is adjusted.About damping force：The damping force of damper can be by changing high-strength bolt
Pretightning force size, the size of mainboard and subplate, friction sheet type and size, rubbing device（Mainboard, subplate, friction plate, high intensity
Bolt）The parameters such as group number adjust.
4）It can combine.When needing to reach certain damping force, it may be considered that damper by two or more excessively is in parallel
Get up, it is in parallel after damping force be each damper damping force and.
5）Easily detection, easy care.Since high-strength bolt is directly installed on outer drum outer wall, the working performance of rubbing device
It can easily be detected, such as pretightning force deficiency, can directly adjust pretightning force, be safeguarded without dismantling whole device to detect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the novel unidirectional friction damper of the present invention.
Fig. 2 is the A-A sectional views of novel unidirectional friction damper shown in Fig. 1.
Fig. 3 is the B-B sectional views of novel unidirectional friction damper shown in Fig. 1.
Fig. 4 is the schematic diagram that the damper is mounted in curtain wall construction.
Fig. 5 is scheme of installation of the damper in suspended structure.Wherein（a）For integral installation schematic diagram, (b) it is tool
Body scheme of installation.
Figure label：101- outer barrels, 102- drive links, 103- ratchets, 104- lubrication grooves, 105- transmission shafts, 106- friction dresses
It sets, 1011- yielding rubber pads, 1021- drive link limiting devices, 1022- drive link gears, 1031- pawls, outside 1032- ratchets
Gear, 1061- mainboards, 1062- friction plates, 1063- subplates, 1064- high-strength bolts.
Specific implementation mode
The present invention provides a kind of novel unidirectional friction dampers, with reference to the accompanying drawings and detailed description to this hair
It is bright to be described further.
Embodiment 1
The novel unidirectional friction damper of the present invention as shown in Figure 1, including：Outer barrel 101, drive link 102, ratchet 103, lubrication groove
104 and transmission shaft 105, more than 106 part of rubbing device.
The damper outer barrel 101 uses steel, and shape is cuboid, is stayed there are one slot at top so that transmission
Bar 102 can just pass through, and drive link 102 is apart from bore edges 5mm.Around the slot at 101 top of outer barrel, top and bottom are equal
Yielding rubber pad 1011 is installed, prevents the limiting device of drive link 102 from hitting bore edges, damages.
The drive link 102 uses steel, and there are circular holes at drive link 102 top, are connected using pin, are connected with component.
The drive link limiting device 1021 on 102 top of drive link welds doughnut-shaped steel plate to realize in target location so that
The gear of drive link 102 will not completely disengage ratchet external gear 1032, while 102 bottom of drive link will not strike outer barrel
101 bottoms.There are two drive link limiting device 1021 is total to above and below, when being mounted in tensional element due to damper, normal work
Make under state, the drive link limiting device 1021 for being located at lower part will be against aperture on outer barrel 101 by pressure, therefore is pressed in design
Boom internal force designs the connection of limiting device；Separately as described above, need to ensure the strong of the impact aperture of drive link limiting device 1021
Degree.
Ratchet external gear 1032 and drive link gear 1022 use the gear of identical size so that the two can nibble completely
It closes.By the way of internal messing, pawl is mounted in lubrication groove ratchet.
Lubrication groove 104 is steel, and section is circular ring shape, is opened there are two notch at the edge of inner ring, is located at opposite position, lacks
The cross sectional shape of mouth is rectangle.Transmission shaft 105 is in the range of lubrication groove thickness, in lubrication groove gap position welding steel, just
Notch is filled up.In this way so that when ratchet straps move lubrication groove rotation, lubrication groove can drive transmission shaft to rotate.Transmission shaft is in non-lubrication groove
In the range of thickness, cross sectional shape is circle.
Mainboard 1061 is the steel plate of one piece of annulus shape, and there are round holes to pass through biography for the position intersected with transmission shaft 105
Moving axis, the size of round hole are equal to the cross-sectional sizes of transmission shaft, are then welded on transmission shaft 105, energy when transmission shaft 105 rotates
Enough mainboard 1061 is driven to rotate.
Subplate 1063 is also the steel plate of annulus shape, and there are round holes to pass through transmission for the position intersected with transmission shaft 105
Axis, the size of round hole are equal to the cross-sectional sizes of transmission shaft, and subplate has just been connected to outer tube end plate by welding, when transmission shaft rotates not
Subplate can be driven to rotate.
Between mainboard 1061 and subplate 1063 and between 101 side wall of mainboard 1061 and outer barrel, friction plate is installed
1062, the friction plate 1062 which uses is copper coin, and equally there are circles for the position that friction plate 1062 intersects with transmission shaft 105
Shape hole, but its size is slightly larger than transmission shaft, in order to which friction plate can generate larger deformation.
In one group of rubbing device 106（One piece of 1061, one pieces of mainboard 1063, two pieces of subplate friction plate 1062, outer barrel 101
Side wall）, installation there are two high-strength bolt 1064, high-strength bolt 1064 by position, corresponding mainboard 1061, subplate
1063, friction plate 1062 and 101 side wall of outer barrel there are suitable high-strength bolt 1064 by hole.High-strength bolt 1064 is matched
It closes gasket to use, prevents pretightning force from losing in use.
The nut of high-strength bolt 1064 is located at 101 outside of outer barrel so that applying pretightning force can apply from 101 outside of outer barrel
Add.After geological process or after long-time use, whether the pretightning force for detecting the rubbing device of damper reaches requirement, as long as
It can detect and safeguard on the outside of device.
The position that transmission shaft 105 intersects with outer barrel 101, there are circular holes on the outer tube wall of outer barrel 101 wears for transmission shaft 105
It crosses.Finally, transmission shaft 105 is supported on the outer tube wall of both sides and is welded on the subplate of outer barrel bottom.
The novel unidirectional friction damper can install the steel boom location with curtain wall of glass for high building, as Fig. 4 illustrates.
Since curtain wall sunpender cannot bear pressure, and the case where still will produce compression under earthquake course under cyclic loading, cause to destroy.
After being mounted with such unidirectional friction damper, once sunpender generates compressive deformation, drive link moves upwards at once, drives spine
Wheel rotates clockwise, and ratchet internal gear can not block main pawl at this time, therefore will not drive lubrication groove, drive link, mainboard rotation, therefore
Damping force is not generated, sunpender compression is avoided.And in sunpender deformed in tension, drive link moves downward, and drives ratchet counterclockwise
Rotation, ratchet internal gear blocks pawl, and to drive lubrication groove to rotate, lubrication groove drives drive rod rotation, drive link that mainboard is driven to turn
It is dynamic, it consumes energy with friction plate damping by friction.
Fig. 5 is a kind of form that the invention is mounted in suspended structure.
Claims (5)
1. a kind of novel unidirectional friction damper, which is characterized in that including outer barrel（101）, drive link（102）, ratchet
（103）, lubrication groove（104）And rubbing device（106）, wherein：
Ratchet includes ratchet external gear（1031）, ratchet internal gear（1032）And pawl（1033）, ratchet external gear（1031）Set
In ratchet internal gear（1032）Outside, pawl（1033）It is installed on lubrication groove（104）On；Outer barrel（101）For cylinder or rectangle cylinder,
The both sides of its open top, the position that is open are equipped with yielding rubber pad（1011）；Drive link（102）It is equipped with drive link limiting device
（1021）And gear（1022）；Drive link（102）Outer barrel is stretched into one end（101）Opening position, drive link（102）Pass through gear
（1022）And ratchet（103）Ratchet external gear（1031）Engagement, is driven；Lubrication groove（104）Axle center at be equipped with transmission shaft
（105）, transmission shaft（105）It is supported on outer tube wall and rubbing device（106）Subplate（1063）On；Two panels rubbing device（106）Point
It Chuan Guo not transmission shaft（105）, and positioned at the both sides of ratchet.
2. the novel unidirectional friction damper of one kind according to claim 1, which is characterized in that drive link（102）Using
Steel, specially round or rectangle, gear（1022）Positioned at one section of its bottom；Transmission limit device on drive link（1021）It rises
Limit the stroke of drive link.
3. the novel unidirectional friction damper of one kind according to claim 1, which is characterized in that lubrication groove（104）It is installed on
Transmission shaft（105）On, section is annular, lubrication groove（104）Inner ring at be provided with recess；Transmission shaft（106）It is inside equipped with casting lug thereon,
The casting lug thereon and inner ring recess match, and the two is just agreed with, and inner ring can drive transmission shaft, and recess shape is without particular/special requirement.
4. the novel unidirectional friction damper of one kind according to claim 1, which is characterized in that the rubbing device includes
Mainboard, subplate, friction plate and high-strength bolt, mainboard are annular plate, are just connected on transmission shaft；Subplate is fixed in outer barrel bottom
Portion, the position trepanning that subplate intersects with transmission shaft；Friction plate is between mainboard and subplate, it is therefore an objective to improve the property of friction energy-dissipating
Energy；High-strength bolt sequentially passes through mainboard, friction plate, subplate and outer barrel, is combined into an entirety by four, provides friction energy-dissipating institute
The pretightning force needed, size is adjustable.
5. the novel unidirectional friction damper of one kind according to claim 1, which is characterized in that transmission shaft position is vertical
In the direction of ratchet plane, leaving certain gaps uncovered by the economic plan on outer tube wall, transmission shaft is mounted on outer tube wall and is fixed on the subplate of outer barrel bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810042496.7A CN108360701B (en) | 2018-01-17 | 2018-01-17 | A kind of novel unidirectional friction damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810042496.7A CN108360701B (en) | 2018-01-17 | 2018-01-17 | A kind of novel unidirectional friction damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108360701A true CN108360701A (en) | 2018-08-03 |
| CN108360701B CN108360701B (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810042496.7A Expired - Fee Related CN108360701B (en) | 2018-01-17 | 2018-01-17 | A kind of novel unidirectional friction damper |
Country Status (1)
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356425A (en) * | 2018-11-19 | 2019-02-19 | 扬州大学 | Exempt from the energy consumption drag-line support of prestressing force Self-resetting |
| CN109537971A (en) * | 2018-12-28 | 2019-03-29 | 北京筑信润捷科技发展有限公司 | A kind of friction energy-dissipating damper |
| CN110273956A (en) * | 2019-06-25 | 2019-09-24 | 江苏科技大学 | A kind of torsional friction plate-type metal damper |
| CN110670753A (en) * | 2019-09-27 | 2020-01-10 | 同济大学 | One-way idle-stroke-free friction damper |
| CN111236044A (en) * | 2020-01-19 | 2020-06-05 | 同济大学 | Novel shock attenuation power consumption support |
| CN113235760A (en) * | 2020-05-10 | 2021-08-10 | 河南牛帕力学工程研究院 | Anti-resonance damping device and structural body using same |
| CN113323982A (en) * | 2020-05-10 | 2021-08-31 | 河南牛帕力学工程研究院 | Anti-resonance damping method for structural body |
| CN113323983A (en) * | 2020-05-10 | 2021-08-31 | 河南牛帕力学工程研究院 | Structure body with anti-resonance damping device |
| CN113818331A (en) * | 2021-10-29 | 2021-12-21 | 济南城建集团有限公司 | Large-span pipeline truss beam falling prevention device |
| CN115341677A (en) * | 2022-09-02 | 2022-11-15 | 扬州大学 | Prestress-free self-resetting energy-consumption inhaul cable support |
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| CN204826285U (en) * | 2015-07-29 | 2015-12-02 | 彭凌云 | Plumbous attenuator of gear drive |
| CN107299953A (en) * | 2017-08-21 | 2017-10-27 | 刘华 | A kind of adjustable rotation viscous damper of damping force and its application |
| CN107313526A (en) * | 2017-07-03 | 2017-11-03 | 同济大学 | Become friction-type gear inertia damping device |
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| US20140041320A1 (en) * | 2011-09-22 | 2014-02-13 | Tongji University | Seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace and fabricating method thereof |
| CN204826285U (en) * | 2015-07-29 | 2015-12-02 | 彭凌云 | Plumbous attenuator of gear drive |
| CN107313526A (en) * | 2017-07-03 | 2017-11-03 | 同济大学 | Become friction-type gear inertia damping device |
| CN107299953A (en) * | 2017-08-21 | 2017-10-27 | 刘华 | A kind of adjustable rotation viscous damper of damping force and its application |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356425A (en) * | 2018-11-19 | 2019-02-19 | 扬州大学 | Exempt from the energy consumption drag-line support of prestressing force Self-resetting |
| CN109356425B (en) * | 2018-11-19 | 2024-04-19 | 扬州大学 | Prestressed self-resetting energy-consumption inhaul cable support |
| CN109537971A (en) * | 2018-12-28 | 2019-03-29 | 北京筑信润捷科技发展有限公司 | A kind of friction energy-dissipating damper |
| CN110273956A (en) * | 2019-06-25 | 2019-09-24 | 江苏科技大学 | A kind of torsional friction plate-type metal damper |
| CN110670753A (en) * | 2019-09-27 | 2020-01-10 | 同济大学 | One-way idle-stroke-free friction damper |
| CN111236044A (en) * | 2020-01-19 | 2020-06-05 | 同济大学 | Novel shock attenuation power consumption support |
| CN113235760A (en) * | 2020-05-10 | 2021-08-10 | 河南牛帕力学工程研究院 | Anti-resonance damping device and structural body using same |
| CN113323982A (en) * | 2020-05-10 | 2021-08-31 | 河南牛帕力学工程研究院 | Anti-resonance damping method for structural body |
| CN113323983A (en) * | 2020-05-10 | 2021-08-31 | 河南牛帕力学工程研究院 | Structure body with anti-resonance damping device |
| CN113818331A (en) * | 2021-10-29 | 2021-12-21 | 济南城建集团有限公司 | Large-span pipeline truss beam falling prevention device |
| CN115341677A (en) * | 2022-09-02 | 2022-11-15 | 扬州大学 | Prestress-free self-resetting energy-consumption inhaul cable support |
| CN115341677B (en) * | 2022-09-02 | 2023-08-04 | 扬州大学 | Prestressed self-resetting energy-dissipation inhaul cable support |
Also Published As
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| CN108360701B (en) | 2019-10-01 |
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Granted publication date: 20191001 Termination date: 20220117 |