CN207944344U - One kind becoming expansion compensation device with bridge cable is differential - Google Patents
One kind becoming expansion compensation device with bridge cable is differential Download PDFInfo
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- CN207944344U CN207944344U CN201820343848.8U CN201820343848U CN207944344U CN 207944344 U CN207944344 U CN 207944344U CN 201820343848 U CN201820343848 U CN 201820343848U CN 207944344 U CN207944344 U CN 207944344U
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- differential
- bridge
- compensation device
- cable
- same direction
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Abstract
The utility model discloses one kind becoming expansion compensation device with bridge cable is differential.Existing expansion compensation device, cannot achieve miniaturization and modularization, not adapt to apply in bridge babinet.The utility model includes at least one differential compensation unit with the differential expansion compensation device that becomes of bridge cable；The differential compensation unit includes for carrying the arched elastic steel plate of power cable, front tension bar, back stay and differential gear in the same direction for being fixed on bridge platform；The both ends of the arched elastic steel plate are connected in forward and backward shaft, and respectively one pulley of connection, the pulley are placed on guide rail at the both ends of the shaft, and guide rail is used to support pulley；The front and rear portions of the differential gear in the same direction are separately connected forward and backward pull rod, and the front and rear connecting rods are connect with forward and backward shaft respectively.The expansion compensation device of the utility model optimizes structure, has the characteristics that miniaturization, modularization, generalization, can substantially reduce investment outlay.
Description
Technical field
The utility model is related to bridge power cable affiliated facility field, specifically one kind becomes with bridge cable is differential
Expansion compensation device, being exclusively used in solving the different expansion joint widths variation at long range bridge floor docking causes with bridge cable
The engineering problem for frequently extending and compressing.
Background technology
With advances in technology with the development in epoch, in overhead transmission line tight passage, extra large cable investment cost is big and technology is difficult
In the case that degree is high, high-tension line cable is laid with bridge, increasingly by Design of Highway Bridge and administrative department receiving and recognize
It can.
With bridge cabling engineering, maximum technological difficulties be to efficiently solve at bridge floor docking because climatic environment,
Gap variation caused by the variation of the factors such as bridge floor load.These cyclically-varyings, the electricity between the two bridge end gaps that can cause to be laid in
Cable frequently elongation and compression, makes power cable fatigue failure.For Oversea bridge, there are different to stretch for different sections
Seam, the stroke that large span stayed-cable bridge, suspension bridge bridge floor end especially on main channel generate can be more than 1m or more.General cable
Telescoping collapse is far from meeting bridge dilatation needs under system of laying.Only by with bridge cable expansion compensation device
（OFFSET）, just can be well solved this engineering roadblock.
Expansion compensation device（OFFSET）The core concept of device design is, in elongation and contraction process, entire arc length
It answers uniform equivalent to be bent, cable mounted thereto is made to ensure that strain in its day and accumulated fatigue are broken under the conditions of allowing bending radius
Bad coefficient meets prescribed requirement.
Domestic and international existing expansion compensation device（OFFSET）To in the horizontal direction be formed with bridge cable one it is arc-shaped
It places, is fixed on the cable tray of same arc, by dividing equally link mechanism, sliding cable frame pulls cable bracket to move
It is dynamic, to drive with the flexible of bridge cable.When movable bridge floor is shunk, arc Cable Bending Radius increases, and arc string elongates, elongation
Amount is equal to the shrinkage of dynamic bridge floor.When movable bridge floor extends, arc Cable Bending Radius reduces, and arc string shortens, indent etc.
In the elongation of dynamic bridge floor.This device is horizontally oriented arc placement, and installation floor area requirement is larger, and ordinary circumstance is both needed to
Additional steel platform is built in bridge case periphery, and this mechanism is complicated, cost of investment is high.
Above-mentioned expansion compensation device（OFFSET）, miniaturization and modularization are cannot achieve, is not adapted in bridge babinet
Middle application.
Utility model content
Technical problem to be solved in the utility model is to overcome the problems of the above-mentioned prior art, and providing one kind is having
It limits in bridge case（Or on platform）Realizing that miniaturization is modular has the differential with bridge cable of adaptation wide area flexible compensation ability
Become expansion compensation device, to simplify structure, reduce investment outlay.
To achieve the above object, the utility model adopts the following technical scheme：One kind becoming flexible with bridge cable is differential
Compensation device comprising at least one differential compensation unit；
The differential compensation unit include for carry the arched elastic steel plate of power cable, front tension bar, back stay and
Differential gear in the same direction for being fixed on bridge platform；
The both ends of the arched elastic steel plate are connected in forward and backward shaft, and respectively connection one is slided at the both ends of the shaft
Wheel, the pulley are placed on guide rail, and guide rail is used to support pulley；
The front and rear portions of the differential gear in the same direction are separately connected forward and backward pull rod, the front and rear connecting rods respectively with forward and backward turn
Axis connection；
Differential gear in the same direction, connecting rod, shaft and the pulley constitutes cooperative motion, and arched elastic steel plate is with pivot
Folding.
The utility model is utilizing bridge case（Or on platform）In the case of the confined space, it is electric with bridge to provide a kind of built modular
Cable wide area expansion compensation device.
As the supplement of above-mentioned technical proposal, the differential compensation unit further includes two activities in splayed distribution
Brace, activity brace are used to support arched elastic steel plate, and the upper shaft of two activity braces connects, and lower end is connected to forward and backward
In shaft.
As the supplement of above-mentioned technical proposal, the differential gear in the same direction is gear differential mechanism or bar thick stick differential mechanism.
As the supplement of above-mentioned technical proposal, the guide rail is in dually arrayed, is fixed on bridge platform.
As the supplement of above-mentioned technical proposal, the differential compensation unit has multiple, is spliced successively from front to back.
As the supplement of above-mentioned technical proposal, the differential gear in the same direction has the differential factor K of two lateral bracing strut displacements,
Multiple differential compensation units are by logical join at the device for adapting to wide area flexible compensation ability.
As the supplement of above-mentioned technical proposal, when splicing, the differential system of the differential gear in the same direction in each differential compensation unit
Number K, respectively 0,1/2,2/3 ... ... n/ (n+1), n is natural number；One end of the differential compensation unit of K=0 is fixed on bridge seam
On the side bridge platform of gap, the equal both ends of differential compensation unit of other end movement, wherein K=(n-1)/n are differential simultaneously；K=n/
(n+1) one end of differential compensation unit is fixed on the other side bridge platform of bridge beam gap, other end movement.
As the supplement of above-mentioned technical proposal, the differential compensation unit has multiple, is arranged in the same of bridge beam gap
Side or both sides.
The utility model has the advantage that as follows：The utility model optimizes structure, have miniaturization, modularization,
Generalization feature can substantially reduce investment outlay；Structure becomes expansion compensation device with bridge cable is differential, flexible with bridge beam gap,
With unique movement locus, the compensation rate equilibrium of each differential compensation unit occurs, and each arched elastic steel plate folding is consistent,
It ensure that electric power threephase cable Bending Deformation thereon synchronizes uniformly.The utility model solves at long range bridge floor docking
The variation of different expansion joint widths cause to extend and the engineering problem of compression with the frequent of bridge cable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model differential compensation unit；
Fig. 2 is the utility model with the differential structural schematic diagram for becoming expansion compensation device of bridge cable；
Fig. 3 is the structural schematic diagram of the utility model differential gear in the same direction.
In Fig. 2, by the first differential compensation unit, the second differential compensation unit, third differential compensation unit spliced at flexible
Compensation device.
Differential compensation unit is by arched elastic steel plate, activity brace（Two are arranged in eight words）, pull rod, in the same direction differential dress
It sets, pulley, guide rail, shaft are constituted.One end of first differential compensation unit is fixed on the bridge platform of flexible side, poor in the same direction
Dynamic device also is secured on bridge platform；Four-headed arrow indicates that bridge beam gap stretches back and forth, that is, indicates the opposite of other side bridge
Movement.
In Fig. 3, differential gear in the same direction is fixed on bridge platform.The ratio between the amount of movement △ M and △ N at its both ends are differential
COEFFICIENT K=n/ (n+1), n are natural number 0,1,2,3 ....It is the corresponding first differential compensation unit module of embodiment, second differential
The n that compensating unit module, third differential compensation unit module build expansion compensation device is 0,1,2.K is respectively 0,1/2,2/3.
Specific implementation mode
In order to which the purpose and advantage that make utility model are more clearly understood, with reference to embodiments, to the utility model into
One step is described in detail.It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit
Determine the utility model.
As shown in Figure 2 becomes expansion compensation device with bridge cable is differential, poor by the first differential compensation unit 11, second
Dynamic compensating unit 12, third differential compensation unit 13 are spliced.
As shown in Figure 1, the differential compensation unit includes for carrying the arched elastic steel plate 1 of power cable 10, preceding
Pull rod 2, back stay 3, the differential gear in the same direction 4 for being fixed on bridge platform and two are in the activity brace of splayed distribution
9。
The both ends of the arched elastic steel plate 1 are connected in forward and backward shaft 5,6, and the both ends of the shaft respectively connect
One pulley 7, the pulley 7 are placed on guide rail 8, and guide rail 8 is used to support pulley 7；
The front and rear portions of the differential gear in the same direction 4 are separately connected forward and backward pull rod 2,3, the front and rear connecting rods 2,3 respectively with
Forward and backward shaft 5,6 connects；
Differential gear in the same direction, connecting rod, shaft and the pulley constitutes cooperative motion, and arched elastic steel plate is with pivot
Folding.
Activity brace 9 is used to support arched elastic steel plate 1, and the upper shaft of two activity braces 9 connects, and lower end is connected to
In forward and backward shaft 5,6.
The differential gear in the same direction 4 is gear differential mechanism or bar thick stick differential mechanism.The guide rail 8 is in dually arrayed, fixed
On bridge platform.
As shown in figure 3, the differential gear in the same direction has the differential factor K of two lateral bracing strut displacements, multiple differences
Dynamic compensating unit is by logical join at the device for adapting to wide area flexible compensation ability.
In Fig. 2, when four-headed arrow moves right 3X（X is amount of movement）When, i.e. F point displacement 3X, by differential compensation unit 13
Effect, E point displacements will become 2X, E points and D point Hard links, then the displacement of D points is also 2X；It is acted on by differential compensation unit 12,
C point displacements will become X, C points and B point Hard links, then the displacement of B points is also X；A points are fixed, its displacement is forever
Zero.This process be it is simultaneous, therefore, B-A=X, D-C=X, F-E=X, that is to say, that three blocks of arched elastic steel plates it is same
When joint open be X, thereby realize the purpose for the power cable homogeneous deformation being mounted above.
When four-headed arrow is moved to the left 3X（X is amount of movement）When, principle is identical, only becomes to close up process.It repeats no more.
The embodiment of the utility model above described embodiment only expresses, can not be therefore understands that for utility model
The limitation of the scope of the claims also not makes any form of restriction the structure of the utility model.It should be pointed out that for this
For the those of ordinary skill in field, without departing from the concept of the premise utility, several variations can also be made and changed
Into these belong to the scope of protection of the utility model.
Claims (8)
1. one kind becoming expansion compensation device with bridge cable is differential, which is characterized in that including at least one differential compensation unit；
The differential compensation unit includes the arched elastic steel plate (1), front tension bar (2), back stay for carrying power cable
(3) and the differential gear in the same direction (4) for being fixed on bridge platform；
The both ends of the arched elastic steel plate (1) are connected in forward and backward shaft (5,6), and the both ends of the shaft respectively connect
One pulley (7), the pulley (7) are placed on guide rail (8), and guide rail (8) is used to support pulley (7)；
The front and rear portions of the differential gear in the same direction (4) are separately connected forward and backward pull rod (2,3), and the front and rear connecting rods (2,3) are respectively
It is connect with forward and backward shaft (5,6)；
Differential gear in the same direction, connecting rod, shaft and the pulley constitutes cooperative motion, and arched elastic steel plate is opened with pivot
It closes.
2. according to claim 1 become expansion compensation device with bridge cable is differential, which is characterized in that the differential benefit
It further includes two activity braces (9) in splayed distribution to repay unit, and activity brace (9) is used to support arched elastic steel plate (1),
The upper shaft of two activity braces (9) connects, and lower end is connected in forward and backward shaft (5,6).
3. according to claim 1 or 2 become expansion compensation device with bridge cable is differential, which is characterized in that described in the same direction
Differential gear (4) is gear differential mechanism or bar thick stick differential mechanism.
4. according to claim 1 or 2 become expansion compensation device with bridge cable is differential, which is characterized in that described leads
Rail (8) is in dually arrayed, is fixed on bridge platform.
5. according to claim 1 or 2 become expansion compensation device with bridge cable is differential, which is characterized in that the difference
Dynamic compensating unit has multiple, is spliced successively from front to back.
6. according to claim 5 become expansion compensation device with bridge cable is differential, which is characterized in that described is in the same direction poor
Dynamic device has the differential factor K of two lateral bracing strut displacements, and multiple differential compensation units are by logical join at adaptation
The device of wide area flexible compensation ability.
7. according to claim 6 become expansion compensation device with bridge cable is differential, which is characterized in that when splicing, each difference
The differential factor K of differential gear in the same direction in dynamic compensating unit, respectively 0,1/2,2/3 ... ... n/ (n+1), n is natural number；K
One end of=0 differential compensation unit is fixed on the side bridge platform of bridge beam gap, other end movement, wherein K=(n-1)/n
The equal both ends of differential compensation unit simultaneously it is differential；One end of the differential compensation unit of K=n/ (n+1) is fixed on the another of bridge beam gap
On the bridge platform of side, other end movement.
8. according to claim 1 become expansion compensation device with bridge cable is differential, which is characterized in that the differential benefit
Repaying unit has multiple, is arranged in the same side or both sides of bridge beam gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343848.8U CN207944344U (en) | 2018-03-13 | 2018-03-13 | One kind becoming expansion compensation device with bridge cable is differential |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343848.8U CN207944344U (en) | 2018-03-13 | 2018-03-13 | One kind becoming expansion compensation device with bridge cable is differential |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207944344U true CN207944344U (en) | 2018-10-09 |
Family
ID=63696990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820343848.8U Withdrawn - After Issue CN207944344U (en) | 2018-03-13 | 2018-03-13 | One kind becoming expansion compensation device with bridge cable is differential |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207944344U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385518A (en) * | 2018-03-13 | 2018-08-10 | 浙江华云电力工程设计咨询有限公司 | One kind becoming expansion compensation device and its construction method with bridge cable is differential |
| CN111799745A (en) * | 2020-08-06 | 2020-10-20 | 刘斌 | Cable assembly for power transmission of adjacent motor train unit carriages |
| CN114649790A (en) * | 2022-05-23 | 2022-06-21 | 中铁建设集团华北工程有限公司 | Spool supporting device for underground pipe gallery and mounting method thereof |
-
2018
- 2018-03-13 CN CN201820343848.8U patent/CN207944344U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385518A (en) * | 2018-03-13 | 2018-08-10 | 浙江华云电力工程设计咨询有限公司 | One kind becoming expansion compensation device and its construction method with bridge cable is differential |
| CN108385518B (en) * | 2018-03-13 | 2023-09-08 | 浙江华云电力工程设计咨询有限公司 | Bridge-following cable differential uniform-variation expansion compensation device and construction method thereof |
| CN111799745A (en) * | 2020-08-06 | 2020-10-20 | 刘斌 | Cable assembly for power transmission of adjacent motor train unit carriages |
| CN111799745B (en) * | 2020-08-06 | 2021-09-10 | 刘斌 | Cable assembly for power transmission of adjacent motor train unit carriages |
| CN114649790A (en) * | 2022-05-23 | 2022-06-21 | 中铁建设集团华北工程有限公司 | Spool supporting device for underground pipe gallery and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181009 Effective date of abandoning: 20230908 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181009 Effective date of abandoning: 20230908 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |