CN202004386U - Anti-vibration supporting system used in bridge laying high-voltage cable - Google Patents
Anti-vibration supporting system used in bridge laying high-voltage cable Download PDFInfo
- Publication number
- CN202004386U CN202004386U CN2010206948363U CN201020694836U CN202004386U CN 202004386 U CN202004386 U CN 202004386U CN 2010206948363 U CN2010206948363 U CN 2010206948363U CN 201020694836 U CN201020694836 U CN 201020694836U CN 202004386 U CN202004386 U CN 202004386U
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- China
- Prior art keywords
- cable
- bridge
- vibration
- antivibration
- mounting system
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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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Abstract
The utility model discloses an anti-vibration supporting system used in a bridge laying high-voltage cable, at least comprising a plurality of cable supporting parts fixedly arranged on the bridge body along the extension direction of the cable. The cable supporting parts comprise supporting bodies and groove bodies used for placing the cable, the supporting bodies are fixedly connected with the groove bodies, and anti-vibration devices are also arranged between the supporting bodies and the bridge body. The anti-vibration supporting system of the cable of the utility model employs rubber pads as anti-vibration measures, besides, does special settings for the spaced distances of the cable supporting parts, eliminating the resonance between the cable and the bridge caused by the vibration of the bridge, on the premise of guaranteeing the strain on the cable metal sheath to be smaller than the maximum allowable metal vibration strain. The anti-vibration supporting system of the cable of the utility model is especially suitable for the cable with an aluminum sheath.
Description
Technical field
The utility model relates to electrical equipment technical field, relates in particular to a kind of antivibration mounting system that bridge lays high-tension cable that is applied to.
Background technology
At present, bridge can also pass through for other municipal pipeline as a most suitable carrier, as water, electricity, communication or the like except the traffic effect of mainly finishing bridge itself.For electric power, stride river or over strait by what bridge was realized cable, can play safety, reliably, economically to the purpose of the regional transmission of electric energy that takes off.
But bridge can vibrate in practice.Magnitude of vibrations that takes place on bridge and frequency are different because of kind of the structure of bridge, shape, load or the like.Substantially, a kind of is according to the rigidity of bridge purlin and the intrinsic vibration of length decision, is that integral bridge vibrates slowly; Another kind is the influence according to live load, the relative vibration between each member of bridge.
Realize that cable borrows the spanning sea to stride the river engineering, just must resolve the antivibration problem of cable, otherwise will have influence on fail safe, the reliability of cable work, and the useful life of cable self.
Therefore, those skilled in the art is devoted to develop a kind of high-tension cable antivibration mounting system bridge, that antivibration is effective that is applied to.
The utility model content
Because the above-mentioned defective of prior art, the purpose of this utility model provides a kind of bridge that is applied to and lays antivibration mounting system high-tension cable, that antivibration is effective.
For realizing above-mentioned technical purpose, the utility model provides a kind of antivibration mounting system that bridge lays high-tension cable that is applied to, and comprises at least along the cable extension direction being fixedly installed on a plurality of cable support on the body of a bridge; Described cable support comprises stake body, and is used to place the cell body of cable, and described stake body is fixedlyed connected with described cell body; Also be provided with the antivibration device between the described stake body and the body of a bridge.
Preferably, the spacing L between a plurality of described cable support is: L＜=[Л (E1g/W)
1/2/ 2f]
1/2
Wherein: f is the vibration frequency of bridge; E1 is buckling resistance=1.1 * 107gcm
2G is acceleration of gravity=9.8/s
2W is a cable weight.
Preferably, described antivibration device is the vibration-proof rubber pad.
Preferably, described vibration-proof rubber pad is the neoprene material.
Preferably, described cable is an aluminum-sheathed cable.
Preferably, described cell body is the fire prevention groove.
Preferably, described cable is provided with thick rubber layer in chuck.
Antivibration mounting system of the present utility model is done the precautions against earthquakes except adopting rubber blanket, also the spacing of a plurality of cable support has been done special setting, under the prerequisite of the metal vibration strain that the strain that guarantees on the cable metal sheath allows less than maximum, cable that bridge vibration causes and the resonance between the bridge have been eliminated.
Antivibration mounting system of the present utility model is particularly useful for aluminum-sheathed cable.
Description of drawings
Fig. 1 is the transversary schematic diagram of a cable support in the utility model one specific embodiment.
Embodiment
Be described further below with reference to the technique effect of accompanying drawing, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
In the utility model one specific embodiment, be applied to the antivibration mounting system that bridge lays high-tension cable and comprise a plurality of cable support.These cable support are fixedly installed on the body of a bridge 5 along the bearing of trend (cable support only is shown among Fig. 1) of cable 2 on bridge.
Because cable laying is vibrated under the strong environment at bridge, the cable 2 preferred aluminum-sheathed cables that adopt.The vibration-resistant property of aluminum-sheathed cable (S-N characteristic) will be better than lead sheathed cable greatly, can improve the antivibration ability of cable self greatly.
Be illustrated in figure 1 as the transversary schematic diagram of one of them cable support.Wherein mainly comprise stake body 1, and be used to place the fire prevention groove 3 of cable 2.Stake body 1 is the angle steel material, with the fire prevention groove 3 between for fixedlying connected.
Also for fixedlying connected, but also be provided with the antivibration device between the two, the fatigue of the cable metal sheath that causes to reduce bridge vibration between stake body 1 and the body of a bridge 5.The antivibration device is the vibration-proof rubber pad 4 of neoprene material in the present embodiment, is separately positioned on the both sides of stake body 1.
Antivibration mounting system of the present utility model has been done special setting to the spacing L between a plurality of cable support, and this spacing L sets according to the vibration frequency of bridge.
Particularly, L＜=[Л (E1g/W)
1/2/ 2f]
1/2
Wherein: f is the vibration frequency of bridge; E1 is buckling resistance=1.1 * 107gcm
2G is acceleration of gravity=9.8/s
2W is a cable weight.
In one embodiment, according to the technical data of bridge, the intrinsic vibration frequency of bridge is between 0.1～0.5Hz, and disposal load (is example with the automobile) frequency is between 5～20hz.According to the result of calculation of above-mentioned formula, the spacing L of each cable support should be preferably 1.5～1.6 meters less than 2 meters in the above-mentioned specific embodiment.
The antivibration mounting system that constitutes by a plurality of cable support of setting spacing, under the prerequisite of strain that guarantees on the electrical cable aluminium sheath less than the vibration strain of the aluminium of maximum permission, eliminate cable that bridge vibration causes and the resonance between the bridge, had a significant antivibration effect.
In addition, cable 2 can also be provided with certain thickness rubber layer (not doing diagram) in chuck, with further enhancing antivibration effect.
Antivibration mounting system of the present utility model also adopts rubber blanket to make precautions against earthquakes except preferred aluminum-sheathed cable, especially also the spacing of a plurality of cable support has been done special setting.By the above-mentioned vibration-proof technology means of integrated application, the utility model has improved the operational environment of gap bridge cable, has obtained good antivibration effect.
More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that this area need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection range by claims.
Claims (7)
1. one kind is applied to the antivibration mounting system that bridge lays high-tension cable, comprises at least along the cable extension direction being fixedly installed on a plurality of cable support on the body of a bridge; Described cable support comprises stake body, and is used to place the cell body of cable, and described stake body is fixedlyed connected with described cell body; It is characterized in that, also be provided with the antivibration device between the described stake body and the body of a bridge.
2. antivibration mounting system as claimed in claim 1 is characterized in that, the spacing L between a plurality of described cable support is:
L＜＝[Л·(E1·g/W)
1/2/2f]
1/2
Wherein: f is the vibration frequency of bridge; E1 is buckling resistance=1.1 * 107gcm
2G is acceleration of gravity=9.8/s
2W is a cable weight.
3. antivibration mounting system as claimed in claim 1 is characterized in that, described antivibration device is the vibration-proof rubber pad.
4. antivibration mounting system as claimed in claim 3 is characterized in that, described vibration-proof rubber pad is the neoprene material.
5. antivibration mounting system as claimed in claim 1 is characterized in that, described cable is an aluminum-sheathed cable.
6. antivibration mounting system as claimed in claim 1 is characterized in that, described cell body is the fire prevention groove.
7. antivibration mounting system as claimed in claim 1 is characterized in that described cable is provided with thick rubber layer in chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206948363U CN202004386U (en) | 2010-12-31 | 2010-12-31 | Anti-vibration supporting system used in bridge laying high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206948363U CN202004386U (en) | 2010-12-31 | 2010-12-31 | Anti-vibration supporting system used in bridge laying high-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004386U true CN202004386U (en) | 2011-10-05 |
Family
ID=44707113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206948363U Expired - Lifetime CN202004386U (en) | 2010-12-31 | 2010-12-31 | Anti-vibration supporting system used in bridge laying high-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557369A (en) * | 2013-07-26 | 2014-02-05 | 中国船舶重工集团公司第七一九研究所 | Marine cable overall-vibration-isolation support made of vulcanized rubber |
| CN114930662A (en) * | 2020-03-10 | 2022-08-19 | 村田机械株式会社 | Conveying system |
-
2010
- 2010-12-31 CN CN2010206948363U patent/CN202004386U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557369A (en) * | 2013-07-26 | 2014-02-05 | 中国船舶重工集团公司第七一九研究所 | Marine cable overall-vibration-isolation support made of vulcanized rubber |
| CN114930662A (en) * | 2020-03-10 | 2022-08-19 | 村田机械株式会社 | Conveying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |