CN1508456A

CN1508456A - Wrapped steel wire

Info

Publication number: CN1508456A
Application number: CNA2003101206821A
Authority: CN
Inventors: 圆句幸作; 之; 守谷敏之; 平; 古川一平; 朗; 中村一朗; 弘; 大宫昭弘; 太; 岩仓昭太
Original assignee: Hitachi Ltd; Tokyo Rope Manufacturing Co Ltd
Current assignee: Hitachi Ltd; Tokyo Rope Manufacturing Co Ltd
Priority date: 2002-12-18
Filing date: 2003-12-18
Publication date: 2004-06-30
Anticipated expiration: 2023-12-18
Also published as: TWI237080B; KR100625006B1; EP1431450A3; JP2004197263A; EP1431450B1; EP1431450A2; KR20040054549A; CN1316184C; JP3756878B2; DE60326808D1; TW200413599A

Abstract

A steel cable rope well-suited for the application to an elevator or a cargo-handling machine, in which each of side strands is constructed by twisting ordinary linear members together with at least one resinous linear member that is larger in diameter than each of the ordinary linear members. Owing to the existence of the resinous linear member of the relatively larger diameter, gaps are respectively defined between the individual side stands and a core rope and between the respectively adjacent side strands, and a resin for outer layer coating is pressed and packed through the gaps, thereby to prevent wear ascribable to the touch between a core rope and the outer side strands, as well as wear ascribable to the touch between the adjacent outer side strands, and wear ascribable to the metal touch between a sheave and the outer side strands.

Description

The cladded type wire rope

Technical field

The present invention relates to a kind of cladded type wire rope that is suitable for the moving rope of making elevator and cargo handling machinery etc.

Background technique

Elevator and be that the used moving rope of cargo handling machinery of representative moves by pulley on one side with the crane, batched on one side, therefore, the known rigor condition that exists the whole piece rope all to bear tension force and flecition.

Past, as this moving rope,, used the rope of such formation according to regulations such as JISG3525 and 3546, promptly on the outer circumferential face of the wire rope core made from fiber or steel strand, wire rope, arrange many side strands and they are twisted together.

In this structure, on wire rope core and side strand, produce high surface pressure, and, because rope is bent by pulley etc., so the friction of wire rope core and side strand occurs.Like this, when rope diameter reduced because of the wire rope core wearing and tearing, the surface pressure between the close all the more mutually side strand had increased.As a result, the problem that has each sub-thread finer wire fracture of each strand wearing and tearing and formation wire rope core and side strand.

As countermeasure, the someone has proposed a kind of moving rope rope that thermoplastic resin is set between wire rope core and side strand.According to this prior art,, be difficult in and keep suitable distance between each side strand though prevented Metal Contact between wire rope core and the side strand.Therefore, each side strand phase mutual friction and wearing and tearing easily.In addition, pulley and side strand are Metal Contact ground slide relative usually, thereby the lower pulley of hardness worn and torn, so exist not only bothersome, but also the time-consuming problem of the replacing of high price pulley.And if oil for alleviating to wear and tear to be coated with, the friction factor between pulley and the rope has just changed, between pulley and rope, occur skidding, and the result, the rotation of pulley can't be passed to rope exactly.As a result, exist such problem, promptly the position control accuracy of the object that is connected with rope (for example elevator cab, handling goods etc.) reduces, and must use the pulley that has the special groove processing of enforcement as pulley.

Summary of the invention

Formulated the present invention for eliminating the problems referred to above.The purpose of this invention is to provide a kind of cladded type wire rope, it can prevent by outside strand be in contact with one another the wearing and tearing that cause, the wearing and tearing and the wire rope core that are caused by pulley and outside strand Metal Contact contact the wearing and tearing that cause with outside strand, thereby the good friction that can realize pulley and whole rope contacts (transmission of power) and manufactures simple.

For achieving the above object, the invention provides a kind of cladded type wire rope, it has wire rope core, be arranged on the periphery of this wire rope core and many stranded with it side strands, coat the resin-coated layer of the periphery of described side strand, wherein, each described side strand is to be made of many stranded resin wire rods, at least one wire rod that constitutes in these resin wire rods of this side strand has the external diameter bigger than all the other wire rods, owing to there is described resin wire rod, so forming the gap respectively between each described side strand and this wire rope core and between adjacent described side strand, outer abrim the coating used resin in these gaps.

Exactly, described side strand has circumcircle that is made of the wire rod outside the described resin wire rod and the bigger circumcircle that is made of described resin wire rod, between each described side strand, form almost equal gap by this circumcircle that constitutes by described resin wire rod, simultaneously, between each described side strand and this wire rope core also owing to this circumcircle forms almost equal gap.

According to such structure, the skin of each side strand has at least one thicker resin wire rod, therefore, under the state of wire rope core arranged around and stranded side strand, each side strand that the contact of the resin wire segment of each side strand is adjacent, part contacts wire rope core simultaneously.Because other wire rod except that the resin wire rod is thinner, thus between the sides adjacent strand formation gap about equally reliably, and between side strand and wire rope core, also form almost equal gap.

Therefore, outermost resin not only covers on the outside of the circumcircle that connects whole side strand and form, and be soaked between adjacent each side strand and between side strand and the wire rope core, form the triangle resin layer of low ebb between the landfill side strand around wire rope core, it becomes radial extension and connects in outermost resin.

Each side strand has with concavo-convex different sectional shape because of the resin wire rod is arranged, and the resin layer of its resin wire rod adheres to then on the outermost resin, becomes the outstanding strand of integrity thus.

Between each side strand and each resin layer between side strand and the wire rope core play bed course and the buffering material effect.Therefore, do not need oiling just can prevent to contact the wearing and tearing that cause with outside strand and be in contact with one another the wearing and tearing that cause by adjacent outside strand by wire rope core, in the wearing and tearing that Metal Contact causes prevent by pulley and outside strand by outermost resin layer between, can realize the good power transmission relationship of pulley with the whole piece rope.

Suitable is, cladded type wire rope of the present invention is made by following operation, promptly prepare out many wires material and have reinforcing line and thicker than this metal wire rod resin wire rod more than at the center, on the periphery of this core wire or internal layer, arrange and stranded these metal wire rods and resin wire rod, be made into the side strand of odd-shaped cross section by described resin wire rod with protrusion; Many described side strands are arranged on the periphery of wire rope core and and twist together, make the rope base material thus them; Make this rope base material pass through extruder, the synthetic resin of fusion is by being filled between side strand and the wire rope core because of the gap between each side strand that has this resin wire rod to form is pressed into, simultaneously, the synthetic resin of fusion also is filled between each side strand, and has further formed the skin of thickness above the circumcircle of this side strand.

According to this structure, once finish the coating operation, before side strand and wire rope core is stranded, need not carry out resin-coating in advance, therefore, can bring to make and become simple and advantage that productivity improves.

Be preferably in the described side strand, used the resin wire rod more than two, they are arranged on the disconnected position of circumference, by having formed and the similar guide flow path of spiral chute with other wire rod is stranded.

According to this structure, because the resin wire rod more than 2 is arranged, so avoided with the Metal Contact of sides adjacent strand and increased point of contact, can between wire rope core and side strand and side strand, stably form equal gap, and owing to form the helical guiding gutter on the circumference between the crude resin wire rod, so resin can successfully soak into, be filled between wire rope core and the side strand traces between each side strand.

In addition, described resin wire rod preferably has the center reinforcing line and is coated on resin layer on the periphery of this center reinforcing line, and described resin wire rod is compared with other wire rod has 1.01-1.1 diameter doubly.

According to this embodiment, because the resin wire rod is compared with other wire rod 1.01-1.1 diameter is doubly arranged, so forming such uniform gap between wire rope core and the side strand and between each side strand, promptly the size in gap allows resin impregnated with being suitable for not causing Metal Contact.And, because each resin wire rod has reinforcing line, so also can guarantee the necessary intensity of side strand.

The resin layer of described resin wire rod is preferably by constituting with the resin identical materials with outer layer protection.So, the skin of the resin of resin wire rod by institute's filling coats heat with resin and is softened or melts, so can form identical even bonding state such as engaging force.

This wire rope core is preferably on the periphery of wire rope core body has the resin-coating layer.So, reliably prevented the contact between wire rope core and the side strand, and can be reliably and be impregnated into skin between wire rope core and the side strand and coat and be integral with resin-bonded.

Although described other form of the present invention and advantage in the following description, be not limited to form with essential characteristic of the present invention and the structure shown in the embodiment.Those skilled in the art can carry out various changes and correction under the prerequisite that does not exceed the spirit or scope of the present invention.

Description of drawings

Fig. 1 is that oblique drawing cuts open in first embodiment's of expression cladded type wire rope of the present invention office.

Fig. 2 is the amplification sectional view of Fig. 1.

Fig. 3 A is that amplification oblique drawing cuts open in the office of an example of the used resin wire rod of the present invention.

Fig. 3 B is that amplification oblique drawing cuts open in the office of another example of the used resin wire rod of the present invention.

Fig. 4 A is the amplification oblique drawing of first embodiment's side strand.

Fig. 4 B is the sectional view of Fig. 4 A.

Fig. 5 is the sectional view of expression first embodiment's the state (rope base material state) of rope before skin coats.

Fig. 6 A represents outer burden process.

Fig. 6 B schematically illustrates the resin impregnated state when coating.

Fig. 7 A represents second embodiment's of the cladded type wire rope of the present invention sectional view of the state (rope base material state) before skin coats.

Fig. 7 B is the sectional view of second embodiment's rope.

Fig. 8 is that oblique drawing cuts open in the 3rd embodiment's of expression cladded type wire rope of the present invention office.

Fig. 9 is the amplification sectional view of Fig. 8.

Figure 10 is the amplification oblique drawing of the 3rd embodiment's side strand.

Figure 11 is the sectional view of the 3rd embodiment's side strand.

Figure 12 is the sectional view of expression the 3rd embodiment's the state (rope base material state) before the outer coating of rope.

Figure 13 A is the 4th embodiment's of the expression cladded type wire rope of the present invention sectional view at the state (rope base material state) that rope is outer before coating.

Figure 13 B is the amplification sectional view of the 4th embodiment's side strand.

Figure 14 represents the experiment anchor clamps of rope of the present invention.

Embodiment

Below, referring to accompanying drawing embodiments of the invention are described.

Fig. 1-Fig. 6 represents first embodiment according to cladded type wire rope of the present invention.

In Fig. 1,2, symbol 1 expression wire rope core on the periphery of the wire rope core body 1a that constitutes at stranded sub-thread finer wire or steel strand, is formed with synthetic resin clad 1b.Although the structure of wire rope core body 1a can be random, in this example, it has 1 * 7 structure, promptly arranges 6 side line materials 102 and they are twisted together around core wire 101.

2 are arranged on around the wire rope core 1 and many stranded (being 6 in the drawings) side strands.The 3rd, the external coating (the full coating) of the synthetic resin that containing side strand 2 ground apply, its fills the gap of gap, each side strand 2 and the wire rope core 1 of having blocked adjacent each

side strand

2,2.

In other words, the 300th, the pack portion between sides

adjacent strand

2,2, the 301st, the pack portion between side strand 2 and wire rope core 1, the 302nd, layer segment outside the cylindrical shape that surrounds towards the circumcircle D3 that draws with crossing the external diameter connect side strand 2.Outer layer segment 302 is integral by radial pack portion 300 and pack portion 301 as internal layer.Pack portion 301 strikes up partnership with the synthetic resin clad 1b of wire rope core 1.

Described side strand 2 constitutes by core wire (middleware) 201 with around the many

side line materials

202,4 of core wire.In this example, as shown in Figure 4, the arranged around of core wire 201 and stranded 6 side line materials obtain 1 * 7 structure thus.

Described side line material is resin wire rod 4 these two kinds of formations of with metal wire rod 202 with more than 1 (here being 2), and resin wire rod 4 is thicker than metal wire rod 202.

Usually, single steel wire is used to described wire rod 201,202.And the core wire 102 of described wire rope core body 1a has also adopted single steel wire.Under the occasion that rope is had high strength require, use tensile strength to be 240kg/cm ²Above single steel wire.This single steel wire is to be that raw material wire rod more than the 0.70wt% obtains by the drawing Kohlenstoffgehalt.Single steel wire has anti-corrosion capable shallow layer such as zinc coat or zinc-aluminium coating etc. from the teeth outwards.

Resin wire rod 4 can be made of resin fully.But, when constituting strand, hope can be played the effect of high strength part.Shown in Fig. 3 A, 3B, preferably have reinforcing line 4a and be provided with the composite structure of resin layer 4b around the reinforcing line at the center.Resin layer 4b and reinforcing line 4a are bonded together.This resin wire rod 4 can be made so continuously, that is, make reinforcing line 4a bathe by melting resin in and adhere to resin, remove redundance subsequently, reinforcing line is passed through in the mould of resin extruded machine.

Reinforcing line 4a can be 1 as shown in Figure 3A, also can form by stranded many single cords 400 shown in Fig. 3 B.Though single steel wire is often used as reinforcing line 4a, also can replace single steel wire ground to use synthetic fiber.As the synthetic fiber under this occasion, preferably the high strength of selecting from aromatic copolyamide, ultra high molecular polyethylene, aromatic polyester etc. is hanged down the extensibility fiber.Many on the line that is made of this fiber is assembled bunchy, with the parallel merging of wire harness or use the long filament twisted.

The resin that is used to form resin layer 4b can use the material strong to the adhesive quality of reinforcing line 4a, for example copolymer of PVC, nylon, polyester, polyethylene, polypropylene and these resins.But, from the viewpoint of acquisition with the good adhesion of the resin of external coating 3, preferably its material and the identical or akin thermoplastic resin of the resin of external coating 3.

Resin as external coating 3, preferably except that wear resistance, ageing resistance, pliability (proof stress breaking property), also have suitable elasticity so as to regulate with the friction factor of pulley and friction factor than higher material, for example adopted propylene resin, polyurethane resin, ether is the elastomer etc. of polyurethane for this reason.Therefore, resin layer 4b also is suitable for adopting this macromolecular material.Wire rope core clad 1b also is suitable for using this resin.

The diameter of described resin wire rod 4 and other wire rod 202 diameter are mutually compared and are necessary for more than 101%, this be because, if diameter does not reach such degree, then when it is used as the side strand, resin wire rod 4 almost is not projected into outside the circumcircle that is made of wire rod, when being twisted into rope, can't form between adjacent

resin wire rod

2,2 is enough to the gap that helps outermost resin to soak into.

Reaching the standard grade of diameter ratio with wire rod 202 is 110%, this be because, if the resin wire rod is thicker, then it very that is contained between the wire rod 202, come-up is exposed thus, perhaps the excesssive gap that forms between sides

adjacent strand

2,2, as a result, the steel pack completeness in the unit cross section reduces.

Though can obtain the size of above-mentioned diameter than ground selection resin layer 4b and reinforcing line 4a, play the viewpoint of the effect of high strength part from making reinforcing line 4a, select wire rod 202 the same or suitable thin diameters with other type.From the relation of strength balance, reduce used wire rod type to stablize the viewpoint of cost, preferably the same size with wire rod 202.

In the occasion that many resin wire rods 4 are arranged, these wire rods are being disposed on the circumference on the position also preferably symmetrical on the separated position, and they twist together according to predetermined spacing and other wire rod 202.

Therefore, under the twisted state of resin wire rod 4, shown in Fig. 4 A, the resin wire rod is along strand length direction curl.Because resin wire rod 4 is thicker than other wire rod 202, so, shown in Fig. 4 B, 2 one-tenth such states of side strand, promptly the circumcircle D2 of resin wire rod 4 surrounds the circumcircle D1 that is made of common wire 202.

By at many this side strands 2 of wire rope core 1 arranged around and carry out strandedly, formed rope base material A shown in Figure 5.The strand direction of lay is preferably opposite with the rope direction of lay, and for example, when the strand direction of lay was the S direction, the rope direction of lay was the Z direction.

Position on the circumference of the resin wire rod 4 of each

side strand

2,2 is at random as illustrated in fig. 5.From being easy to the viewpoint of rope manufacturing, this also is suitable.

In this rope base material A, between each

side strand

2,2, circumcircle D2 by helical resin wire rod 4 is partitioned into suitable gap S1 about equally, simultaneously, between side strand 2 and the wire rope core 1, the circumcircle D2 by helical resin wire rod 4 also is partitioned into suitable gap S2 about equally.

Under this state, clean rope base material A, whole be preheating to about 100 ℃ after, apply external coating 3.Usually, as shown in Figure 6A, this be by make rope base material A in the mould 90 of the continuous extruder 9 of resin melt extrusion 30 by and carry out continuously.

When coating is extruded, shown in Fig. 6 B, melting resin 30 be pressed into be filled among the uniform gap S1 that is formed between each

side strand

2,2 and be filled to communicate with this gap S1, in the gap S2 between side strand 2 and the wire rope core 1, this gap of landfill thus.

Shown in Fig. 4 A, between thick

resin wire rod

4,4, be formed with and be similar to the spiral fluted guide flow path.Therefore, melting resin 30 is along this guide flow path smoothly reliably between inflow side strand 2 and the wire rope core 1, and can be filled between each side strand 2.Increase and make the stable viewpoint in gap consider that the resin wire rod 4 of side strand 2 is preferably more than 2 from this point and with the point of contact of sides adjacent strand 2.

The resin wire rod 4 of each

side strand

2,2 is preheated as described above, under this state, owing to contact high-temperature fusion resin 30 is heated, so the surface of resin layer 4b becomes sticky or fusing at least, under the occasion of fusing, the melting resin part is also soaked into by gap S1, S2, melts thus on the clad 1b that is attached to wire rope core 1.That is, resin wire rod 4 also becomes and coats with the part of melting resin and play the effect of supplying resin in the rope.

So, as shown in Figure 2, can be reliably between each

side strand

2,2, form be embedded between paddy and become similar leg-of-mutton radial impregnated with resin layer 300 and between side strand 2 and wire rope core 1, form the annular impregnated with resin layer 301 continuous with this resin impregnated layer 300.

At last, melting resin 30 covers whole side strand 2, but owing to be mixed with crude resin wire rod 4 in the side strand 2, so bonding surface area increases and forms irregular complex section shape, under this state, resin layer 4b melts attached or sticks on the melting resin 30.Therefore, the cohesion of cylindric outer 302 the inside part homonymy strand 2 that surrounds that side strand 2 ground form strengthens, thereby the anti-resistance that offsets increases.

And outer 302 strike up partnership being embedded between paddy, the radial impregnated with resin layer 300 of similar del and the annular impregnated with resin layer 301 between side strand 2 and wire rope core 1 between the

side strand

2,2 by these.

Resin and external coating 3 at the resin wire rod 4 of wire rope core 1 resin layer 1b, side strand 2 are under the situation of identical material, if heat, then melting easily, because physical property, the chemical property of the resin in the cross section are consistent, so the clad that is not easy to occur because of frictional force and shearing force with pulley cause breaks or the changing of the relative positions.

The present invention sneaks into resin wire rod 4 in constituting side strand 2 outer field wire rods, in this case, owing between each

side strand

2,2 and between side strand 2 and wire rope core 1, form the gap, so do not need in advance whole side strand to be carried out the operation of resin burden, when coating whole rope, realized the resin-coating of side strand.Therefore, disposablely finish the coating operation, can boost productivity and reduce cost.

And if when differently using resin-coating side strand 2 in advance with the present invention, side strand and coating wire rope core glue to be incorporated in whole enforcement resin burden on its periphery, in this case, resin is difficult to be impregnated between cylindrical shape coated sides strand and the cylindrical shape burden wire rope core, produces space and existence thus and is unfavorable for side strand and the incorporate possibility of wire rope core.And the present invention has eliminated this mystery.And, owing to also can improve the steel pack completeness, so obtained high-intensity rope.

Described outer 302 external diameters (circumcircle D3) from side strand 2 if thickness too small, poor durability then, wear-out life also reduces.If but blocked up, then impair as the moving necessary pliability of rope, and rope chap and strength efficiency reduces, therefore, this thickness is generally below 1/5 of rope diameter, for example is preferably the 0.3-2.0 millimeter.

Fig. 7 represents second embodiment of the invention.In this embodiment, have three to be resin wire rod 4 in the outer field wire rod that constitutes side strand 2, these three wire rods are equally spaced arranged.Only show in detail 1 side strand, and simplified other side strand.Other structure is the same with first embodiment, thereby with identical symbolic representation same section and omitted explanation.

In the present invention, the structure of the structure of wire rope core 1, side strand 2 does not have particular restriction.Fig. 8-Figure 12 represents other embodiments of the invention (the 3rd embodiment), and wherein the wire rope core body 1a of wire rope core 1 is made of 7 * 7 IWRC, and its periphery is provided with resin-coating layer 1b.

Side strand 2 is that the structure by 8 * S (17+2) forms.Exactly, the center piece of side strand 2 be by thick core wire 201 ' around arrange 9 thin wires 203 and the internal layer 2a that forms constitutes, on the periphery of internal layer 2a, as arrange and stranded 7 steel wires 201 and the resin wire rod 4 of (being 2 among the figure) more than 1 outerly.Resin wire rod 4 is arranged between 3 wire rods and 4 wire rods.Therefore the structure of resin wire rod 4, all the same with first embodiment with the diameter ratio of single steel wire, used resin, outer coating condition and effect etc. here cites above-mentioned explanation.

Figure 13 represents to use the example of 3 resin wire rods 4.Per 2 single steel wire 201 are joined a resin wire rod 4, and other structure etc. are the same with first embodiment, therefore with reference to above description.

Example

Adopt the present invention to make the cladded type wire rope.Wire rope core has that to coat ether on the wire rope core body of 1 * 7 structure be that the structure and the external diameter of polyurethane (Shore D is 90) is 3.0 millimeters.Subsequently, at wire rope core arranged around and stranded 6 side strands that 1 * 7 structure is arranged.

In each side strand, 4 that constitute in outer field 6 wire rods are single steel wire, and 2 is the resin wire rod.It is 1.00 millimeters steel wire that single steel wire is used diameter, and the resin wire rod uses by extruder and coat the wire rod that ether is 1.1 millimeters thicknesses forming of polyurethane (Shore D is 90) on thick 1.00 millimeters single steel wire.These resin wire rods are configured between the single steel wire and are undertaken strandedly on the S direction by 30 millimeters of laies, obtain the side strand thus.

Produce 6 side strands of above-mentioned form, these side strands are configured in around the wire rope core and carry out strandedly on the Z direction according to 80 millimeters of laies, form the rope base material thus.

After checking out the rope base material, between each side strand, evenly separate 0.2 mm clearance, between wire rope core and side strand, form 0.1 millimeter gap.

Behind clean rope base material, 100 ℃ of following preheatings, the ether that is coated on 200 ℃ of following fusions by extruder is polyurethane (Shore D is 90), is 11 millimeters cladded type wire rope thereby the thickness that obtains outer D3 is 1.0 millimeters and external diameter.

Cut off and with microscopic examination cladded type wire rope, can confirm resin-coated by complete filling between adjacent each side strand and also between side strand and wire rope core and with outer resin layer, become one by complete filling.

The cladded type wire rope that is obtained is carried out the experiment of such coating with the bond strength of rope, promptly pull external coating 3 and rope base material A in the opposite direction with anchor clamps as illustrated in fig. 14.For relatively, also all use the rope of single steel wire to carry out the bond strength experiment without resin wire rod and outer strand to its side strand.As a result, rope of the present invention is compared with the occasion of not using the resin wire rod, and bond strength improves about 80%.Determine the resin fill rate with microscopic examination, found that the resin fill rate has improved about 65% with comparing without the occasion of resin wire rod.

And, be 20 at D (diameter of pulley)/d (rope diameter), safety coefficient is to carry out the S crooked experiment under 10 the circular groove pulley service condition, investigates resin-coated unusual frequency.Found that, in the occasion of not using the resin wire rod, the coating changing of the relative positions has just taken place in the time of 50000 times, and rope of the present invention is not seen yet in the time of 150000 times unusually.

Changing resin wire rod radical when having only 1 resin wire rod, to compare with the occasion of not using the resin wire rod, the engaging force that coats with rope strengthens about 50%.And the resin fill aluminium in the rope has increased by 40% when using 1 resin wire rod, has increased by 80% when using 3.As for resin-coated unusual frequency, even if under the occasion of 1 resin wire rod, rope is not seen in the time of 100000 times yet unusually.

Industrial applicibility

Although the present invention is applicable to dynamic search, also be applicable to hoist cable, the cable-stayed bridge of suspension bridge wirerope, The standing wire of electric pole etc. etc. In the occasion that is used for these purposes, the resin-coated side of not only surrounding Strand, and resin is by being filled between wire rope core and the side strand and connecing securely between the side strand Integrator, therefore, cause owing to the expansion rate of steel and resin is different at coating and rope Occur the gap between the cable body and avoided, thereby can prevent effectively that (comprising dewfall produces by moisture Moisture) corrosion that causes.

Claims

1, a kind of cladded type wire rope, it has wire rope core (1), be arranged on the periphery of this wire rope core and stranded with it many side strands (2), coat the resin-coated layer (3) of the periphery of described side strand (2), it is characterized in that, each described side strand (2) is to be made of many stranded resin wire rods (4), at least one wire rod that constitutes in these resin wire rods of this side strand has the external diameter bigger than all the other wire rods, owing to there is described resin wire rod (4), so forming gap (S1 respectively between each described side strand (2) and this wire rope core (1) and between adjacent described side strand (2), S2), outer abrim coating the in these gaps with resin (300,301).

2, wire rope as claimed in claim 1, it is characterized in that, described side strand (2) has circumcircle (D1) that is made of the wire rod outside the described resin wire rod and the bigger circumcircle (D2) that is made of described resin wire rod (4), between each described side strand (2), form almost equal gap (S1) by this circumcircle (D2) that constitutes by described resin wire rod (4), simultaneously, between each described side strand (2) and this wire rope core (1) also owing to this circumcircle (D2) forms almost equal gap (S1).

3, wire rope as claimed in claim 1, it is characterized in that, in described side strand (2), used the resin wire rod (4) more than two, they are arranged on the disconnected position of circumference, by having formed and the similar guide flow path of spiral chute with other wire rod (202) is stranded.

4, wire rope as claimed in claim 1, it is characterized in that, described resin wire rod (4) has center reinforcing line (4a) and is coated on resin layer (4b) on the periphery of this center reinforcing line, and described resin wire rod is compared with other wire rod (202) has 1.01-1.1 diameter doubly.

5, wire rope as claimed in claim 4 is characterized in that, the resin layer (4b) of described resin wire rod (4) is by constituting with the resin identical materials with outer layer protection.

6, wire rope as claimed in claim 1 is characterized in that, this wire rope core (1) has resin-coating layer (1b) on the periphery of wire rope core body (1a).

7, wire rope as claimed in claim 1 is characterized in that, described cladded type wire rope is used to elevator or cargo handling machinery.

8, a kind of cladded type wire rope is characterized in that, it is made by following operation:

1) prepares out many wires material and have reinforcing line and thicker than this metal wire rod resin wire rod more than at the center, on the periphery of this core wire or internal layer, arrange and stranded these metal wire rods and resin wire rod, be made into the side strand of odd-shaped cross section with protrusion by described resin wire rod

2) many described side strands are arranged on the periphery of wire rope core and and twist together, make the rope base material thus them,

3) make this rope base material pass through extruder, the synthetic resin of fusion is by being filled between side strand and the wire rope core because of the gap between each side strand that has this resin wire rod to form is pressed into, simultaneously, the synthetic resin of fusion also is filled between each side strand, and has further formed the skin of thickness above the circumcircle of this side strand.