CN2679803Y

CN2679803Y - Wind-proof cable for harbor hoisting machinery

Info

Publication number: CN2679803Y
Application number: CN 200420024208
Authority: CN
Inventors: 鲁建军; 彭小弟; 孙曙光
Original assignee: YUANDONG CABLE FACTORY
Current assignee: Far East Cable Co Ltd
Priority date: 2004-01-11
Filing date: 2004-01-11
Publication date: 2005-02-16
Anticipated expiration: 2014-01-11

Abstract

The utility model relates to a control cable, in particular to a wind-proof cable for harbor hoisting machinery. The utility model is characterized in that a plurality of wires are twisted by a plurality of insulated wire cores, a plurality of wires integrate the cable, and the wire center, the cable center and the cable edge gap are filled with lead bead chains which extend with the wire core. Because the utility model is additionally provided with a plurality of longitudinal weight increasing lead bead chains in the cable, not only the weight of the cable is made to increase in multiples with good gravity flagging performance but also the sectional area of the cable can not be increased greatly, the wind resistance ability of the cable is greatly increased, and the phenomenon that cable greatly swings in strong wind can be basically eliminated. The cable also has good flexibility which satisfies the request of moving and storing, the anti-breaking ability of the cable is greatly increased, and the cable is suitable for moving and bending situations.

Description

Harbour lifting machine wind-proof cable

Technical field

Utility model relates to a kind of control cable, especially the windproof control cable of harbour lifting machine.

Background technology

Harbour lifting machine control cable is to provide electric power and control signal cable for lifting appliances such as harbour van containers.The lifting discrepancy in elevation differs sometimes and reaches tens of rice, and because harbour service by the sea, wind-force is bigger, therefore require cable will have stronger wind resistance swing ability, as require anti-9-10 level wind-force to impact, and cable needs to move with lifting appliance in the lifting process, also requires cable that good bending property is arranged.Harbour lifting machine cable adopts the general control cable usually at present, and this cable is because deadweight is lighter, and is severe especially at powerful wind blows lower swing, not only influences the safe handling of cable, and big swing is difficult to the lifting folding and unfolding.Secondly, because the bending radius of this cable is less, often use easily causes cable conductor to fracture and the sheath breakage, and its fracture resistance is relatively poor.Chinese patent 94207862 and the plumbous cover of 94208962 disclosed polyvinyl chloride insulations control cable are to use lead alloy to be suppressed with the lead alloy oversheath with lead extrusion die orifice direct cooling mode outside stranding.Though this kind cable has higher weight, lack soft bending property, therefore can only be used for fixing and lay, be not suitable for frequent mobile, crooked harbour lifting machine use.

Summary of the invention

The purpose of utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of from great, and wind resistance is good, and good bending property and bigger bending radius are arranged again, the harbour lifting machine wind-proof cable that fold resistance is good.

The utility model purpose realizes, main improvement is that strand center, cable center and the crack, cable limit at cable is filled with bigger lead of density and lead alloy pelletron, thereby make cable not only reach weightening finish, make it to have stronger wind loading rating, but also has the crooked flexibility that satisfies instructions for use, and bigger bending radius, make it to be fit to harbour device for hoisting machinery and use.Specifically, utility model harbour lifting machine wind-proof cable comprises edge core and the oversheaths of thoroughly doing away with more, it is characterized in that being twisted into some strands by some insulated wire cores, the comprehensive stranding of some strands, said strand center, cable center and crack, cable limit are filled with the lead sweat chain that extends with core.

The said weightening finish lead sweat of utility model chain, wherein especially with the 40-80% that accounts for whole cable weight for well; For increasing the intensity of lead sweat chain, utility model is filled the lead sweat chain, and a kind of better mode is that the center has series line, is with the fibrage cover outward.For guaranteeing that the weightening finish stranding has suitable bending property, said lead sweat chain pearl is long to be good with 2-10mm; For making it stranding suitability is preferably arranged with insulated wire cores, help stablizing strandedly and regular with cable, said lead sweat is comparatively suitable with diameter 2-6mm.

The utility model cable, because set up many vertically weightening finish lead sweat chains in cable, thereby cable is increased weight at double, gravity sag is good, and cable increasing section is long-pending significantly, significantly improved the wind loading rating of cable, can eliminate cable substantially and in strong wind, rock significantly, and cable has still had bending property preferably, can satisfy mobile, folding and unfolding requirement, use applicable to moving crooked occasion, and significantly improved the anti-ability that fractures of cable, reduce the breakage rate of sheath.

Description of drawings

Fig. 1 is a utility model wind-proof cable structural representation.

Fig. 2 fills lead sweat chain structure schematic diagram in being.

Embodiment

Embodiment: referring to accompanying drawing, the utility model wind-proof cable has some (6) insulated wire cores 1 and center lead sweat chain 3 to be twisted into strand 2, and the strand periphery has nonwoven fabrics lapping layer 4 to tighten.Some lead sweat chains 3 are twisted into the center weightening finish fill chain, fibrage layer 7 is arranged outward, inner width is filled with regeneration cotton fiber 6.The evenly distributed some strands of chain periphery (7 strands) are filled in the center weightening finish, and some lead sweat chain 3 comprehensive strandings are filled in crack, strand limit, and external application fabric strip 5 holds, and is with TPU sheath 8 again.

Utility model can be set insulated wire cores, strand quantity and weightening finish lead sweat chain as required.

The said lead sweat chain of utility model comprises pelletron plumbous and that lead alloy is made.

Claims

1, a kind of harbour lifting machine wind-proof cable, comprise edge core and the oversheaths of thoroughly doing away with more, it is characterized in that being twisted into some strands by some insulated wire cores, the comprehensive stranding of some strands, said strand center, cable center and crack, cable limit are filled with the lead sweat chain that extends with core.

2,, it is characterized in that institute's said central lead sweat chain is a stranded strand of chain according to right 1 described harbour hoisting machine wind-proof cable.

3,, it is characterized in that said lead sweat chain weight accounts for the 40-80% of cable weight according to right 1 or 2 described harbour hoisting machine wind-proof cables.

4, according to right 3 described harbour hoisting machine wind-proof cables, it is characterized in that the long 2-10mm of institute lead sweat chain pearl.

5, according to right 4 described harbour hoisting machine wind-proof cables, it is characterized in that the lead sweat diameter 2-6mm that has a talk about.

6, according to right 1 described harbour hoisting machine wind-proof cable, it is characterized in that said lead sweat chain has braided sheath outward.