CN109989336A - A kind of wind resistance damping bridge boom carrying out vibration isolation with magnetic levitation technology - Google Patents
A kind of wind resistance damping bridge boom carrying out vibration isolation with magnetic levitation technology Download PDFInfo
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- CN109989336A CN109989336A CN201910342134.4A CN201910342134A CN109989336A CN 109989336 A CN109989336 A CN 109989336A CN 201910342134 A CN201910342134 A CN 201910342134A CN 109989336 A CN109989336 A CN 109989336A
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- Prior art keywords
- outer housing
- exciting coil
- sleeve
- magnet exciting
- vibration isolation
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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)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of wind resistance damping bridge booms that vibration isolation is carried out with magnetic levitation technology, magnet exciting coil is wrapped in the outside of sunpender ontology along the axial direction of sunpender ontology, bush outer sleeve is fixedly connected in magnet exciting coil and in the sunpender ontology, first outer housing is cylindrical and is coated at the sleeve and magnet exciting coil described in face is located at the outside of the magnet exciting coil simultaneously, and magnet exciting coil, which is powered, forms along the radially outer electromagnetic force of sunpender ontology the first outer housing.In wind load of first outer housing by two sides, by the electric current for changing magnet exciting coil, it can cause the change of electromagnetic force, first outer housing is formed along the radially outer electromagnetic force of sunpender ontology, so that sunpender ontology and the first outer housing is radially being similar to the effect separated, frictional force, active force only radially is not present, to be easier to control stress, effect of energy dissipation is good.
Description
Technical field
The present invention relates to build a bridge technical field more particularly to it is a kind of with magnetic levitation technology carry out vibration isolation wind resistance subtract
Shake bridge boom.
Background technique
Sunpender is generally used in bridge construction, is exposed to the elements for a long time, and use environment is severe, but sunpender is bridge knot
Important component in structure.Such as in suspension bridge, sunpender is the rod piece for connecting suspension cable and bridge deck, and the load of bridge deck passes through sunpender
It is transmitted to suspension cable.With the continuous development of bridge industry, various types of bridges are more and more.For example, when half-through or under hold
When formula arch bridge span increases, length of boom is more sensitive to wind action with regard to longer more soft, and wind resisting stability is poorer.
Sunpender in bridge is easy to cause wind-induced vibration, in the prior art, have studied when both sides are influenced by wind
Many hanging rod structures, most of is all to increase relevant wind-proof device on the both sides of sunpender, but since wind may be from each
Direction blows to sunpender or blows over from the both sides of sunpender, therefore in present device, is uneven in fact for windproof ability
, the blowing in a variety of directions, bad adaptability, and many wind-proof devices cannot be coped with simultaneously during wind resistance for the biography of power
Sunpender itself can all be passed back by passing, palliative.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of wind resistance damping bridges for carrying out vibration isolation with magnetic levitation technology
Sunpender can be directed to the ambient enviroment of sunpender well, the wind around sunpender be carried out energy-dissipating and shock-absorbing, wind resistance effect is good.
A kind of wind resistance damping bridge boom carrying out vibration isolation with magnetic levitation technology, including sunpender ontology and setting are in institute
The wind-proof device on sunpender ontology is stated, the wind-proof device includes magnet exciting coil, sleeve and the first outer housing, first shell
Body is made of permanent-magnet material, and the magnet exciting coil is wrapped in the outside of sunpender ontology, the sleeve along the axial direction of sunpender ontology
It is coated at magnet exciting coil and is fixedly connected in the sunpender ontology, first outer housing is cylindrical and is coated at the sleeve
And magnet exciting coil described in face is located at the outside of the magnet exciting coil simultaneously, first outer housing is by least two pieces of casing sheets groups
At the shape of each casing sheets is identical and forms first outer housing along the circumferential array of first outer housing, described anti-
Wind apparatus further includes the second housing body limited for the axial direction to first outer housing, the end of the second housing body
Face forms the limiting slot limited for the end of the casing sheets, the second housing body and the fixed company of the sunpender ontology
It connects, gap setting is limited simultaneously for the radial direction to casing sheets between the limiting slot and the casing sheets, described
Magnet exciting coil, which is powered, forms along the radially outer electromagnetic force of sunpender ontology the first outer housing.
Further, the both ends of the casing sheets are provided with fin, and the limiting slot is arranged in second housing body end face
Annular groove, pass through the fin and the limiting slot and cooperate.
Further, the cross section of the fin, at least provided with a fin on the end face of each casing sheets.
Further, the outer diameter of the outer diameter of the second housing body and first outer housing is equal, outside two neighboring second
The both ends that the opposite end face of shell is respectively used to first outer housing are limited, and the first outer housing and second housing body are successively
Stack the tube structure for being formed and being coated at outside the sleeve.
Further, the second housing body is fixedly connected by dowel with the sunpender ontology, and the two of the dowel
End is respectively connected to sleeve and casing sheets, and the dowel is made of damping material.
Further, the dowel is arranged along the circumferential direction of sunpender ontology.
Further, the sleeve is made of permeability magnetic material, and the guide body is located in first outer housing one section
It is made of permeability magnetic material, the second housing body is made of non-magnet material.
Further, the upper end of the guide body is fixedly installed bulge loop, and external screw thread, institute are provided on the outside of the bulge loop
The upper end for stating sleeve is correspondingly arranged on internal screw thread, and the sleeve is threadedly coupled by the bulge loop with guide body.
Further, it the lower ending opening of the sleeve and is tightly connected by end cap and the guide body, on the end cap
It is provided with the via hole stepped down for the cable of the magnet exciting coil.
Further, it is helically wound in the outer of the sunpender ontology to be located at the part outside sleeve for the cable of the magnet exciting coil
Side.
Beneficial effects of the present invention: the present invention carries out the wind resistance damping bridge boom of vibration isolation, excitation with magnetic levitation technology
Coil is wrapped in the outside of sunpender ontology along the axial direction of sunpender ontology, and bush outer sleeve is in magnet exciting coil and in the sunpender ontology
It is fixedly connected, the first outer housing is cylindrical and is coated at the sleeve and magnet exciting coil described in face is located at the excitation simultaneously
The outside of coil, magnet exciting coil, which is powered, forms along the radially outer electromagnetic force of sunpender ontology the first outer housing.In the first shell
Wind load of the body by two sides can cause the change of electromagnetic force, be formed to the first outer housing by changing the electric current of magnet exciting coil
Along the radially outer electromagnetic force of sunpender ontology, sunpender ontology and the first outer housing is made radially to be similar to the effect separated,
There is no frictional force, active force only radially.First outer housing, by wind-force, is offset, electromagnetism in radial direction by electromagnetic force
On power acting in opposition to sunpender ontology, is offset by the reversed electromagnetic force of sunpender ontology, realize energy dissipating.Apparatus of the present invention, by
Power is single, which direction acted on regardless of wind and rain, can be converted into the active force along guide body radial direction, thus more easily to by
Power is controlled, and effect of energy dissipation is good.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is enlarged drawing of the Fig. 1 at C；
Fig. 3 is structural schematic diagram of the Fig. 1 along A-A；
Fig. 4 is structural schematic diagram of the Fig. 1 along B-B.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
Fig. 1 is the structural diagram of the present invention, and Fig. 2 is enlarged drawing of the Fig. 1 at C, and Fig. 3 is structural representation of the Fig. 1 along A-A
Figure, Fig. 4 are structural schematic diagram of the Fig. 1 along B-B.A kind of wind resistance damping bridge for carrying out vibration isolation with magnetic levitation technology of the present invention is hung
Bar includes magnet exciting coil including sunpender ontology 1 and the wind-proof device being arranged on the sunpender ontology 1, the wind-proof device
2, sleeve 3 and the first outer housing 4, first outer housing 4 are made of permanent-magnet material, and the magnet exciting coil 2 is along sunpender ontology 1
Axial direction be wrapped in the outside of sunpender ontology 1, the sleeve 3 is coated at magnet exciting coil 2 and connects in the sunpender ontology 1 is fixed
It connects, first outer housing 4 is cylindrical and is coated at the sleeve and magnet exciting coil 2 described in face is located at the excitation simultaneously
The outside of coil 2, first outer housing 4 are made of at least two pieces of casing sheets, and the present embodiment includes the first casing sheets 401 and the
Two casing sheets 402, the shape of each casing sheets is identical and forms first shell along the circumferential array of first outer housing 4
Body 4, the wind-proof device further include the second housing body 5 limited for the axial direction to first outer housing 4, and described
The end faces of two outer housings 5 forms the limiting slot 501 limited for the end of the casing sheets, the second housing body 5 with
The sunpender ontology 1 is fixedly connected, and gap setting is between the limiting slot 501 and the casing sheets for casing sheets
Radial to be limited simultaneously, the magnet exciting coil 2, which is powered, forms along the radially outer electromagnetism of sunpender ontology 1 first outer housing 4
Power.
The present invention carries out the wind resistance damping bridge boom of vibration isolation with magnetic levitation technology, and magnet exciting coil 2 is along sunpender ontology 1
Axial direction be wrapped in the outside of sunpender ontology 1, sleeve 3 is coated at magnet exciting coil 2 and is fixedly connected in the sunpender ontology 1,
One outer housing 4 is cylindrical and is coated at the sleeve 3 and magnet exciting coil 2 described in face is located at the magnet exciting coil 2 simultaneously
Outside, magnet exciting coil 2, which is powered, forms along the radially outer electromagnetic force of sunpender ontology 1 first outer housing 4.In the first outer housing 4
It can be caused the change of electromagnetic force, to the formation of the first outer housing 4 by changing the electric current of magnet exciting coil 2 by the wind load of two sides
Along the radially outer electromagnetic force of sunpender ontology 1, sunpender ontology 1 and the first outer housing 4 is made radially to be similar to the effect separated
Frictional force, active force only radially is not present in fruit.First outer housing 4, by wind-force, is offset in radial direction by electromagnetic force,
On electromagnetic force acting in opposition to sunpender ontology, is offset by the reversed electromagnetic force of sunpender ontology 1, realize energy dissipating.Present invention dress
It sets, stress is single, regardless of which direction wind and rain acts on, the active force radial along guide body 1 can be converted into, to more hold
Easily stress is controlled, effect of energy dissipation is good.
The center vertical of first casing sheets 401 and second housing piece 402 relative to the first outer housing 4 described in the present embodiment
Section is symmetrical, and combination forms columnar first outer housing 4, and concrete shape is appreciated that details are not described herein.The two group splice grafting
Synapsis, there are small gaps, therefore in the limit of limiting slot 501, and the first casing sheets 401 and second housing piece 402 make can edge
Move radially, therefore wind-force can be acted radially on to 402 surface of the first casing sheets 401 and second housing piece, with electromagnetic force into
Row is cancelled out each other.
In the present embodiment, the both ends of the casing sheets are provided with fin 6, and the limiting slot is arranged in the second housing body
The annular groove of end face is cooperated by the fin 6 with the limiting slot 501.Cooperated by setting fin 6 with limiting slot 501,
It is easier to assemble.
In the present embodiment, the cross section of the fin 6, at least provided with described in one on the end face of each casing sheets
Fin 6.Cricoid fin 6, can limit the oscillation space of casing sheets, allow its energy dissipating in defined space, better effect.
In the present embodiment, the outer diameter of the outer diameter of the second housing body 5 and first outer housing 4 is equal, two neighboring
The both ends that the opposite end face of second housing body is respectively used to first outer housing 4 are limited, outside the first outer housing 4 and second
Shell 5 stacks gradually the tube structure to be formed and be coated at outside the sleeve.The outer diameter of second housing body 5 and first outer housing
4 outer diameter is equal, and in appearance, the appearance that combines is in tube structure, and overall structure is easier to energy dissipating, and damping is smaller, no
There can be other extra active forces.
In the present embodiment, the second housing body 5 is fixedly connected by dowel 7 with the sunpender ontology 1, the connection
The both ends of muscle 7 are respectively connected to sleeve 3 and casing sheets, and the dowel 7 is made of damping material, and second housing body 5 is radial
The active force wind loading rating that can also improve the present apparatus by dowel energy dissipating, more a step.In the present embodiment, the dowel
7 are arranged along the circumferential direction of sunpender ontology 1, are more uniformly stressed, can also offset each other radially.
In the present embodiment, the sleeve 3 is made of permeability magnetic material, and the guide body 1 is located at first outer housing 4
Interior one section is made of permeability magnetic material, and the second housing body 5 is made of non-magnet material.
In the present embodiment, the upper end of the guide body 1 is fixedly installed bulge loop 8, and the outside of the bulge loop 8 is provided with outer
Screw thread, the upper end of the sleeve 3 are correspondingly arranged on internal screw thread, and the sleeve 3 is connected by the bulge loop 8 with 1 screw thread of guide body
It connects.
In the present embodiment, the lower ending opening of the sleeve 3 and it is tightly connected by end cap 9 and the guide body 1, it is described
The via hole stepped down for the cable of the magnet exciting coil 2 is provided on end cap 9.
In the present embodiment, it is helically wound in the sunpender sheet that the cable of the magnet exciting coil 2 is located at the part outside sleeve 3
The outside of body 1, if under stormy weather, using spiral winding, the rain line in guide body 1 can be eliminated, prevented
Influence of the rain line to guide body 1 saves material, reduces into without opening up extra helix in guide body 1
This.
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 (10)
1. it is a kind of with magnetic levitation technology carry out vibration isolation wind resistance damping bridge boom, it is characterised in that: including sunpender ontology with
And the wind-proof device on the sunpender ontology is set, the wind-proof device includes magnet exciting coil, sleeve and the first outer housing, institute
It states the first outer housing to be made of permanent-magnet material, the magnet exciting coil is wrapped in the outer of sunpender ontology along the axial direction of sunpender ontology
Side, the bush outer sleeve are fixedly connected in magnet exciting coil and in the sunpender ontology, and first outer housing is cylindrical and outer
It is placed on the sleeve and magnet exciting coil described in face is located at the outside of the magnet exciting coil simultaneously, first outer housing is by least
Two pieces of casing sheets compositions, the shape of each casing sheets is identical and is formed outside described first along the circumferential array of first outer housing
Shell, the wind-proof device further include the second housing body limited for the axial direction to first outer housing, and described
The end face of two outer housings forms the limiting slot limited for the end of the casing sheets, and the second housing body is hung with described
Bar body is fixedly connected, between the limiting slot and the casing sheets gap setting for the radial direction to casing sheets simultaneously into
Row limit, the magnet exciting coil, which is powered, forms along the radially outer electromagnetic force of sunpender ontology the first outer housing.
2. the wind resistance damping bridge boom according to claim 1 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
The both ends of the casing sheets are provided with fin, and the annular groove in second housing body end face is arranged in the limiting slot, by described
Fin and the limiting slot cooperate.
3. the wind resistance damping bridge boom according to claim 2 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
The cross section of the fin, at least provided with a fin on the end face of each casing sheets.
4. the wind resistance damping bridge boom according to claim 3 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
The outer diameter of the outer diameter of the second housing body and first outer housing is equal, the opposite end face of two neighboring second housing body point
Not Yong Yu the both ends of first outer housing limited, the first outer housing and second housing body stack gradually to be formed and are coated at institute
State the tube structure outside sleeve.
5. the wind resistance damping bridge boom according to claim 4 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
The second housing body is fixedly connected by dowel with the sunpender ontology, and the both ends of the dowel are respectively connected to sleeve
And casing sheets, the dowel are made of damping material.
6. the wind resistance damping bridge boom according to claim 5 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
The dowel is arranged along the circumferential direction of sunpender ontology.
7. the wind resistance damping bridge boom according to claim 1 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
The sleeve is made of permeability magnetic material, and the guide body, which is located in first outer housing, uses permeability magnetic material system for one section
At the second housing body is made of non-magnet material.
8. the wind resistance damping bridge boom according to claim 1 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
The upper end of the guide body is fixedly installed bulge loop, and external screw thread, the upper end pair of the sleeve are provided on the outside of the bulge loop
It should be provided with internal screw thread, the sleeve is threadedly coupled by the bulge loop with guide body.
9. the wind resistance damping bridge boom according to claim 8 for carrying out vibration isolation with magnetic levitation technology, it is characterised in that:
It the lower ending opening of the sleeve and is tightly connected by end cap and the guide body, is provided on the end cap and is encouraged for described
The via hole that the cable of magnetic coil is stepped down.
10. the wind resistance damping bridge boom according to claim 9 for carrying out vibration isolation with magnetic levitation technology, feature exist
In: the cable of the magnet exciting coil is located at the helically wound outside in the sunpender ontology in the part outside sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342134.4A CN109989336B (en) | 2019-04-26 | 2019-04-26 | Wind-resistant shock-absorbing bridge suspender for vibration isolation by using magnetic suspension technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910342134.4A CN109989336B (en) | 2019-04-26 | 2019-04-26 | Wind-resistant shock-absorbing bridge suspender for vibration isolation by using magnetic suspension technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109989336A true CN109989336A (en) | 2019-07-09 |
| CN109989336B CN109989336B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910342134.4A Active CN109989336B (en) | 2019-04-26 | 2019-04-26 | Wind-resistant shock-absorbing bridge suspender for vibration isolation by using magnetic suspension technology |
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| CN109989336B (en) | 2020-10-09 |
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