CN101431225A - Cable clamper - Google Patents
Cable clamper Download PDFInfo
- Publication number
- CN101431225A CN101431225A CNA2008102439446A CN200810243944A CN101431225A CN 101431225 A CN101431225 A CN 101431225A CN A2008102439446 A CNA2008102439446 A CN A2008102439446A CN 200810243944 A CN200810243944 A CN 200810243944A CN 101431225 A CN101431225 A CN 101431225A
- Authority
- CN
- China
- Prior art keywords
- cable
- clamping plate
- clamping
- anchor clamps
- cable cleat
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A cable clamp includes two semicircular clamping plates, wherein, the section shape of the clamping plates is one part of the same circle and the clamping plates are connected mutually to form a hollow for accommodating cables. One clamping plate is longer than the other clamping plate. The invention can efficiently ensure cable fixation and cable protection.
Description
Technical field
The invention belongs to the power circuit technical field, specifically is the cable cleat during power cable vertical wave in a kind of 220KV of being applicable to heavy in section lays.
Background technology
In the prior art, the utilization in city cable tunnel increases day by day, according to the principle in domestic and international operation correlation experience and saving space, and the mode that most of cable all adopts vertical wave to lay, wherein cable and cable bearer fixedly is crucial.In the fixation procedure, key is selecting for use of shroud ring and installation requirement.In the past, the material of shroud ring generally is wooden structures or plastic construction, and its quality is light, the reason that becomes long-term use easy for installation.In recent years, the application of aluminium alloy shroud ring is just progressively developed.Its advantage is that lightly not perishable turbid ability is a certain mechanical strength, and is more moderate to the grip force of cable.Utilize this characteristic, this shroud ring is used in the environment of cable lifting beyond doubt one and well selects.But also will consider some problems in the actual use: whether the size of grip force can satisfy cable is running into when expanding with heat and contract with cold and can be free to slide; Whether cable is produced the stress undue concentration, make its local compression, so that the situation of damaging etc.In the prior art, the position of anchor clamps clamping cable is a straight line, can also be suitable for when the small bore cable that fixing straight-run or big radian lay.And cable lays with different cross section radian in various degree often, therefore during with original clamp electric cable with large cross-section, the clamping force of the suffered clamping force of cable much larger than the anchor clamps intermediate cable located at the anchor clamps two ends, stationary fixture concentrates on place, stationary fixture two ends to the thrust of cable, existing stationary fixture two end cable contacts area are very little, under certain active force, because contact area is little, very big to cable pressure, the easy like this cable machinery that causes damages.
Summary of the invention
The technical problem to be solved in the present invention: in the vertical waves of heavy in section power cable such as 220KV lay, with horizontal stand fixedly be a problem that can not be ignored.Consider and lay that install, many-sided factors such as operation all can be brought influence for the fixed form and the requirement of cable, fixing tension, cable can not carry out opposite mobile according to the phenomenon of expanding with heat and contract with cold.Fixed pine, be easy to generate vibration, motion was made troubles.Therefore solving the cable fixation problem reliably, is the key that cable moves reliably and with long-term.
The objective of the invention is, in order to address the above problem, concrete technical scheme is as follows:
A kind of cable cleat comprises two semi-circular clamping plate, and the clamping plate cross sectional shape is the part of identical annulus, and they interconnect, and formation can be placed the hollow of cable.Described two clamping plates wherein one longer than another.
The axial cross section of described longer clamping plate is an arc.
The position of described shorter clamping plate is corresponding with the vault position than the long arc shape clamping plate.
Described curved splint back is relative with shorter clamping plate.
Described clamping plate adopt aluminum alloy materials.
The inner surface of described clamping plate is provided with neonychium.
Described two clamping plates connects by bolt.
The principle of the invention and advantage are, the clamp position is the clamping form of straight line in these anchor clamps change prior art, increases the clamping area of fastening clip for cable tool, and the crooked radian of stationary fixture and cable is consistent, deformation when having reduced the cable clamping avoids the cable part to bear excessive pressure again.Can guarantee during the clamp cable that cable keeps the shape lay, and cable is when producing distortion because of variations in temperature, guaranteed that cable is stressed can be distributed on the retained part of whole anchor clamps to greatest extent, and be not concentrated in the two ends of anchor clamps.Thereby effectively guarantee the purpose of the fixing of cable and protection cable.The position of anchor clamps clamping cable is designed to circular arc according to cable snake shaped bending radius of laying, during the anchor clamps attached cable, to reduce the cable fault that causes distortion of the cable to cause because of external force.
Anchor clamps adopt the two halves combining structure, the anchor clamps that are used for single-core cable consider that eddy current effect produced fire damage to cable, so adopt light and handy corrosion resistant such as aluminium alloy, have certain mechanical strength, do not constitute closed magnetic circuit, the moderate material of cable grip force is made.
The elastic insert that uses rubber to make between cable and the anchor clamps plays shockproof and the buffering effect, simultaneously the cable sheath insulation against ground is strengthened, and reduces the damage of mechanical stress to cable greatly.
The present invention is applicable to cable trough, and vertical wave such as tunnel lays environment, and easy for installation, reliability is better.
Description of drawings
Fig. 1 is a user mode schematic diagram of the present invention
Fig. 2 is a lateral plan of the present invention
Fig. 3 is a front view of the present invention
Train wheel bridge 1, lower plate 2, bolt 3, cable 4
Embodiment
Be described further below in conjunction with accompanying drawing and embodiment the present invention.
A kind of cable cleat comprises two semi-circular clamping plate (i.e. train wheel bridge among the figure and lower plate), and the clamping plate cross sectional shape is the part of identical annulus, and they interconnect, and formation can be placed the hollow of cable.Described two clamping plates wherein one longer than another.The axial cross section of described longer clamping plate (lower plate) is an arc.The position of described shorter clamping plate (train wheel bridge) is with corresponding than the vault position of long arc shape clamping plate (lower plate).Described curved splint back is relative with shorter clamping plate.The inner surface of described clamping plate is provided with neonychium.Described two clamping plates connects by bolt.
In this example, the preferred aluminium alloy of clamp material.Liner be neonychium can rubber, plastics, stereotype and wooden packing ring, the plastic sheath that peels on the also available cable is as liner.The liner that uses elastomeric material to make in this example, elastic effect is good, and certain antihunt action is arranged.Liner forms resilient coating between cable and anchor clamps, making has both clamping cables of anchor clamps to be difficult for crushing cable, and make the cable sheath insulation against ground, in order to avoid the injury of short circuit current that is subjected to stray electrical current or goes into ground by sheath.In addition, because the clamp region characteristics increase the protection area of liner, the mechanical stress damage that cable is subjected to drops to minimum.
In this example, according to the outside diameter of cable, the crooked amplitude when the vertical wave of cable lays, the size of pressing cable forces and construction space, plan position approach etc., it is the aluminum alloy materials of 8MM that the circular arc vault position of the longer clamping plate of anchor clamps promptly clamps position employing thickness; Extend the flexure plane of each 150MM from vault central point both sides and the 30 degree angles that tilt gradually downwards, increase the clamping area and the docile degree of fastening clip for cable tool like this, alleviate the cable compressive strength.
For verifying these anchor clamps force-bearing situation, simulated field lays the cable wave shape wave, and the cable in the sectional fixture position sticks foil gauge, does the comparative test with the anchor clamps of the old and new's structure.In identical clamping length, identical external force effect following time, the clamping cable has than big-difference at the suffered pressure of clamp ends, and the suffered pressure of this anchor clamps clamping cable is 1/10th of former anchor clamps only, this shows that the suffered pressure of cable is greatly improved; Cable is when 6KN (standard is 5KN) pulling force, and the cable of old anchor clamps clamping produces slippage, and slippage does not appear in the cable of new anchor clamps clamping, and the old relatively anchor clamps of the new anchor clamps in grip aspect also have certain improvement.
By the application of these anchor clamps in the vertical wave of cable lays, thoroughly solved the problem of cable thermal and mechanical stress, and guaranteed cable no any mechanical damage and requirement in anchor clamps.Through operation test, cable does not have any vestige that crushes, and each side is normal.The distribution situation of the thermal and mechanical stress that has improved cable gravity well and produced because of expanding with heat and contract with cold makes it to be distributed on each anchor clamps and is released, and makes cable avoid mechanical damage.
Claims (9)
1, a kind of cable cleat is characterized in that comprising two semi-circular clamping plate, and the clamping plate cross sectional shape is the part of identical annulus, and they interconnect, and formation can be placed the hollow of cable.
2, cable cleat according to claim 1, it is characterized in that described two clamping plates wherein one longer than another.
3, cable cleat according to claim 2, the axial cross section that it is characterized in that described longer clamping plate is an arc.
4, cable cleat according to claim 3 is characterized in that the position of described shorter clamping plate is corresponding with the vault position than the long arc shape clamping plate.
5, cable cleat according to claim 4 is characterized in that described curved splint back is relative with shorter clamping plate.
6, according to claim 1,2,3,4 or 5 described cable cleats, it is characterized in that the inner surface of described clamping plate is provided with neonychium.
7,, it is characterized in that described clamping plate adopt aluminum alloy materials according to claim 1,2,3,4 or 5 described cable cleats.
8, cable cleat according to claim 6 is characterized in that described neonychium adopts elastomeric material.
9,, it is characterized in that described two clamping plates connects by bolt according to claim 1,2,3,4 or 5 described cable cleats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102439446A CN101431225A (en) | 2008-12-11 | 2008-12-11 | Cable clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102439446A CN101431225A (en) | 2008-12-11 | 2008-12-11 | Cable clamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101431225A true CN101431225A (en) | 2009-05-13 |
Family
ID=40646446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102439446A Pending CN101431225A (en) | 2008-12-11 | 2008-12-11 | Cable clamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101431225A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982914A (en) * | 2010-09-21 | 2011-03-02 | 中国北车股份有限公司大连电力牵引研发中心 | Cable fixing clamp |
| CN113155661A (en) * | 2021-05-08 | 2021-07-23 | 河南科技大学 | Reciprocating type friction and wear test and use fixture device and reciprocating type friction and wear test machine |
-
2008
- 2008-12-11 CN CNA2008102439446A patent/CN101431225A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982914A (en) * | 2010-09-21 | 2011-03-02 | 中国北车股份有限公司大连电力牵引研发中心 | Cable fixing clamp |
| CN113155661A (en) * | 2021-05-08 | 2021-07-23 | 河南科技大学 | Reciprocating type friction and wear test and use fixture device and reciprocating type friction and wear test machine |
| CN113155661B (en) * | 2021-05-08 | 2024-02-27 | 河南科技大学 | Clamp device for reciprocating frictional wear test and reciprocating frictional wear testing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103343838A (en) | Pre-stress type cable fixing clamp | |
| CN102032396A (en) | Damping insulated flame-retardant energy-saving pipe holder | |
| CN101431225A (en) | Cable clamper | |
| CN201349114Y (en) | Special clamping apparatus for large section cable | |
| CN201319488Y (en) | Antiskid conductor spacer | |
| CN202094581U (en) | Overhead conductor composite alternating spacing rod | |
| CN209150319U (en) | A kind of tubular insulation aluminum tube bus splice insulation structure | |
| CN214774371U (en) | Impact-resistant high-strength power tube | |
| CN110061461A (en) | A kind of nuclear power Insulation crane span structure | |
| CN202474758U (en) | Anti-waving reinforced strain-resistant cable clamp | |
| CN215378409U (en) | Anti-cracking PVC biaxial orientation anti-aging composite co-extrusion power pipe | |
| CN206541677U (en) | A kind of subway stiff cantilevers composite insulator | |
| CN210771020U (en) | Concatenation formula pipeline insulation assembly | |
| CN204947517U (en) | A kind of high reliability coupling assembling of plug-board bus bar | |
| CN210668833U (en) | High temperature resistant cable for electric automobile conduction electric system | |
| KR102025261B1 (en) | A compression type clamp for aluminum stranded conductors carbon-glass fiber composite core | |
| CN102447239A (en) | Jumper wire support spacer | |
| CN211231911U (en) | Anti-frost-crack plastic pipe | |
| CN103388306A (en) | Super-long stay cable outer protective sleeve expansion compensation device | |
| CN204392175U (en) | Test contact | |
| CN207010171U (en) | A kind of Fast Installation cluster type tension-proof cable clip | |
| CN204885738U (en) | A pyrocondensation distribution for on refrigerator | |
| CN204835445U (en) | Flexible alternate conductor spacer | |
| CN215635402U (en) | Shockproof water pipe mounting structure of engineering | |
| CN201946344U (en) | Anti-galloping carbon fiber conducting wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090513 |