CN102738758A - Angle bending apparatus used for cable telescoping arc - Google Patents
Angle bending apparatus used for cable telescoping arc Download PDFInfo
- Publication number
- CN102738758A CN102738758A CN2011100833469A CN201110083346A CN102738758A CN 102738758 A CN102738758 A CN 102738758A CN 2011100833469 A CN2011100833469 A CN 2011100833469A CN 201110083346 A CN201110083346 A CN 201110083346A CN 102738758 A CN102738758 A CN 102738758A
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- Prior art keywords
- cable
- dog
- angle bending
- bridge
- arc
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- 238000005452 bending Methods 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 244000188472 Ilex paraguariensis Species 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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- Bridges Or Land Bridges (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to an angle bending apparatus used for a cable telescoping arc. The apparatus is a rotary pin which is horizontally or vertically arranged. The rotary pin is a square frame structure. A middle part of two sides is connected to an angle bending support. Compared to the prior art, by using the apparatus of the invention, the structure is simple and installation is convenient. Rotation is performed according to a heat-expansion and cold-contraction condition. The cable is fixedly installed on a bridge. Therefore, adverse effects of the telescoping and angle bending changes on the cable are reduced as much as possible, a service life of the cable is prolonged and safety operation of the cable is ensured.
Description
Technical field
The present invention relates to the flexible arc of a kind of stube cable and use device, especially relate to the flexible arc of a kind of cable and use dog-ear device.
Background technology
220kV Chongming networking project is laid the station, 220kV Chen Jia town of 2 go back tos 220kV cable line to Chongming Islands from station, sea, 220kV continent, and cut-offs ring and go into to be positioned at the station, 220kV Changxing on the Changxing Island.Through detailed investigation, analysis, comparison; Engineering confirms to be employed in the Shanghai Chong Su major path route scheme of building; Pass through basin for shipping, south, the Changjiang river with tunnel style, cross over basin for shipping, north, the Changjiang river, the about 37km of length completely with the bridge mode; Being maximum in the world at present bridge tunel engineering, also is simultaneously that the power cable of the domestic the first 220kV electric pressure of China is striden the bridge engineering.Bridge produces flexible and knuckle owing to receive the influence of dynamic loading of current, the wind, earthquake etc. of variation of temperature, vehicle at the two ends of bridge.For soft junction structure length bridges such as suspension bridge, cable-stayed bridges, consider this two kinds of factors simultaneously; And for rigid structure small bridge such as metal bridge, concrete bridges, because knuckle changes not quite, can ignore, so only consider the telescopic variation of length direction.Since these variations have been arranged, take measures necessary to the influence of stretching and knuckle causes to the cable on the bridge that is laid in regard to needing, eliminate or the flexible adverse effect that variation causes cable with knuckle of reduction farthest.Modern bridge generally adopts concrete or steel construction, and bridge in running, changes owing to variations in temperature, humidity and load variations all will cause bridge structure to deform.
For the bridge cabling, lay high-tension cable and need consider to adapt to this particular surroundings of bridge, avoid factor affecting cable running safeties such as bridge is flexible, vibration.When this engineering 220kV power cable lays in the place, expansion joint,, therefore need to be used for power cable laying and to absorb the flexible absorption plant that stroke changes, be called for short the offset device in the installation of the position at expansion joint in order to tackle the flexible amplitude of bridge better.
The offset device technique stems from Japan at first, has obtained development widely through for many years application study.Even to this day, the existing a plurality of power cable laying works in the whole world have adopted the offset device to deal with the flexible and knuckle problem of bridge.
Summary of the invention
The object of the invention is exactly to provide the flexible arc of a kind of cable simple in structure, easy for installation to use dog-ear device for the defective that overcomes above-mentioned prior art existence.
The object of the invention can be realized through following technical scheme:
The flexible arc of a kind of cable is used dog-ear device, it is characterized in that, this device is level or the vertical rotating dog that is provided with, and rotating dog is foursquare shaped as frame structure, and the middle part of dual-side is connected on the knuckle support.
Described rotating dog adopts stainless steel tube to make and obtains.
Connect through movable diagonal brace between four limits of described rotating dog, the middle part of dual-side is provided with bolt, is fixedly connected on the knuckle support.
Described knuckle support is made up of angle steel and connecting plate, and described connecting plate is provided with screw, is connected with bolt on rotating dog side coupling.
Compared with prior art, the present invention is simple in structure, and is easy for installation; Can cable be fixedly mounted on the bridge according to the situation rotation of expanding with heat and contract with cold, farthest reduce the flexible adverse effect that variation causes cable with knuckle; Improve the useful life of cable, guaranteed the safe operation of cable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1 is that rotating dog, 11 is that diagonal brace, 12 is that bolt, 2 is the knuckle support among the figure.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is elaborated.
Embodiment
The flexible arc of a kind of cable is used dog-ear device; Its structure is as shown in Figure 1, and this device adopts stainless steel tube to make and obtains for level or the vertical rotating dog 1 that is provided with; Rotating dog 1 is foursquare shaped as frame structure; Connect through movable diagonal brace 11 between four limits of rotating dog 1, the middle part of dual-side is provided with bolt 12, is fixedly connected on the knuckle support.Knuckle support 2 is made up of angle steel and connecting plate, and connecting plate is provided with screw, is connected with bolt on rotating dog 1 side 12 couplings.Through level to and the operate as normal of vertical the present invention who is provided with can guarantee knuckle the time in the bridge end, and guarantee the safe operation of cable.
Claims (4)
1. the flexible arc of cable is used dog-ear device, it is characterized in that, this device is level or the vertical rotating dog that is provided with, and rotating dog is foursquare shaped as frame structure, and the middle part of dual-side is connected on the knuckle support.
2. the flexible arc of a kind of cable according to claim 1 is used dog-ear device, it is characterized in that, described rotating dog adopts stainless steel tube to make and obtains.
3. the flexible arc of a kind of cable according to claim 1 is used dog-ear device, it is characterized in that, connect through movable diagonal brace between four limits of described rotating dog, the middle part of dual-side is provided with bolt, is fixedly connected on the knuckle support.
4. the flexible arc of a kind of cable according to claim 1 use dog-ear device, it is characterized in that described knuckle support is made up of angle steel and connecting plate, and described connecting plate is provided with screw, matees with bolt on the rotating dog side to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083346.9A CN102738758B (en) | 2011-04-02 | 2011-04-02 | A kind of cable expansion arc dog-ear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110083346.9A CN102738758B (en) | 2011-04-02 | 2011-04-02 | A kind of cable expansion arc dog-ear device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102738758A true CN102738758A (en) | 2012-10-17 |
| CN102738758B CN102738758B (en) | 2015-08-05 |
Family
ID=46993781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110083346.9A Active CN102738758B (en) | 2011-04-02 | 2011-04-02 | A kind of cable expansion arc dog-ear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102738758B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566924A (en) * | 2021-11-22 | 2022-05-31 | 浙江华云电力工程设计咨询有限公司 | Horizontal type modularization is along with flexible compensation arrangement of bridge cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263801Y (en) * | 1995-08-24 | 1997-10-01 | 英业达股份有限公司 | Retraction stand for open cover type electronic display device |
| CN202019177U (en) * | 2011-04-02 | 2011-10-26 | 上海市电力公司 | Break angle device arranged on cable telescoping arc |
-
2011
- 2011-04-02 CN CN201110083346.9A patent/CN102738758B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263801Y (en) * | 1995-08-24 | 1997-10-01 | 英业达股份有限公司 | Retraction stand for open cover type electronic display device |
| CN202019177U (en) * | 2011-04-02 | 2011-10-26 | 上海市电力公司 | Break angle device arranged on cable telescoping arc |
Non-Patent Citations (3)
| Title |
|---|
| 周韫捷等: "远距离跨海大桥高压电缆敷设工程", 《电网技术》, vol. 30, no. 22, 30 November 2006 (2006-11-30), pages 87 - 90 * |
| 孟毓,龚尊: "东海大桥敷设电力电缆设计探讨", 《上海市电气工程设计研究会2007年学术年会》, 1 October 2007 (2007-10-01), pages 75 - 78 * |
| 陶坊资: "大呜门吊桥上架设高压电力交联电缆", 《电力建设》, no. 5, 31 May 1987 (1987-05-31), pages 19 - 25 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114566924A (en) * | 2021-11-22 | 2022-05-31 | 浙江华云电力工程设计咨询有限公司 | Horizontal type modularization is along with flexible compensation arrangement of bridge cable |
| CN114566924B (en) * | 2021-11-22 | 2023-10-27 | 浙江华云电力工程设计咨询有限公司 | Horizontal modularized bridge-following cable expansion compensation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102738758B (en) | 2015-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. SHANGHAI ELECTRIC POWER C Free format text: FORMER OWNER: SHANGHAI JIULONG ELECTRIC SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20130110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130110 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: Shanghai Electric Power Communication Co., Ltd. Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation Applicant before: Shanghai Jiulong Electric Power Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |