CN107208368A

CN107208368A - Stranded hawser

Info

Publication number: CN107208368A
Application number: CN201680006168.0A
Authority: CN
Inventors: H·罗美尔
Original assignee: Bridon International Ltd
Current assignee: Bridon International Ltd
Priority date: 2015-01-27
Filing date: 2016-01-26
Publication date: 2017-09-26
Also published as: EP3250749A1; US20170370046A1; AU2016212179A1; BR112017013878A2; CA2970930A1; KR20170106970A; RU2017130174A; SG11201705015SA; WO2016120237A1

Abstract

A kind of hawser (10,20), including：Core (12,22), twist with the fingers multiple silent partners (18,28) on the core (12,22) and multiple separation stocks (17,27) and around the multiple silent partners (18,19) and the first plastic sheath (19) of the multiple separation stock (17,27), the wherein the multiple stock (17,27) that separates extends from the core (12,22) and extended between each pair silent partners in the multiple silent partners (18,28), the gap between each pair silent partners to produce and maintain the multiple silent partners (18,28).Separation stock (17,27) is attributed to, the plastics dipping of hawser (10,20) can be ensured.

Description

Stranded hawser

Technical field

The present invention relates to hawser, particularly high performance stranded hawser, the method for manufacturing this hawser and this The application of hawser.

Background technology

The rope of plastics dipping is recommended for harsh mining application, and rope is exposed to high-caliber in this applications Abrasion and fatigue, and particularly abrasive dust, dust or Corrosive Materia may permeate the occasion of rope in the normal operation period.

Hawser is impregnated by special process, and thus the independent stock gap in rope is filled with sealing thermoplastic, The sealing thermoplastic is between independent stock and around rope core formation protective layer.

Plastics dipping protects rope from the infiltration of dust and dust and other Corrosive Materias, and also protection rope is exempted from By the inter deterioration rubbed between stock.Therefore, the life-span of rope is extended considerably.If in addition, the hawser of plastics dipping has Dry advantage.It does not have tensile properties, because thermoplasticity makes stock stick together；This rope to rotation is also highly profitable, Because this technique prevents rope is reversed from separating.Another benefit is that their flexural property：The filling of plastics reduces silk contact Bending stress, so as to improve the load transfer between silk and stock and share.Impregnated plastic causes lasting flexibility, more resistant to impact Load and rope service life are significantly increased.

The hawser of plastics dipping is useful in more extreme condition (for example, dust, dust or chemical environment).It is also It is frequently used in coal or ore industry, piling operation and shovel crane, and in the application with very high wear levels.

On the other hand, the common plastics dipping of rope is not very in check technique, because it is difficult to which how control rope is Impregnated.Generally, plastics only randomly fill the space inside rope.During this technique, it is difficult to avoid following situation： When rope is bent during use, two or more outer ropes stocks are in contact with each other or outer rope stock contacts the silent partners of core. During the operation of rope, these contact points turn into the wear point of steel to steel, cause the last failure of rope.

The separation of Maintenance Unit and stock and stock and core is extremely difficult in the rope that plastics impregnate.In United States Patent (USP) No.5,386,683 and United States Patent (USP) 7,389,633 in disclose a kind of such method, which provide the modeling of particular design Material or fiber rod are as wrapped (wormings), to prevent the contact between silent partners.However, this system requirements accurately operates control System, and still leave the possibility contacted after plastics or fiber rod fretting wear between the silk of silent partners.

The content of the invention

It is an object of the present invention to provide a kind of hawser with high fatigue life and wearability.

It is an object of the present invention to provide a kind of hawser for the stabilization for being suitable for harsh fretting wear operation.

It is yet another object of the invention to provide a kind of hawser for the stabilization that can be produced by conventional punch and torsade technique.

According to the present invention there is provided a kind of hawser, it includes core, the multiple silent partners and multiple separations stock twisted with the fingers on the core (separator strand), around the multiple silent partners and the first plastic sheath of the multiple separation stock, wherein described Extend between multiple each pair silent partners separated from core extension and in the multiple silent partners, to produce and maintain described many Gap between each pair silent partners of individual silent partners.

In present disclosure, " separation stock " refer to be used as being used for maintaining gap between each pair silent partners it is wrapped, The stock of spacing body or partition member.Separate stock or wrapped be different from filler of the prior art.Wrapped position and function and filler It is different.Separate stock or wrapped between each pair silent partners, and filler is by the space for two neighbouring interlayers for being filled in stock.Separate Stock or it is wrapped be used for keep each pair stock between gap, and filler is generally used for being filled in the gap in rope so that rope more Circle.Separate stock or wrapped with the layer identical lay pitch being associated, and filler has the monofilament phase contacted with them The same lay pitch.

In present disclosure, ' stock ' can also be interpreted ' cord '.It is generally made up of some single monofilament. In this context, ' single monofilament ' is the silk of single uninterrupted length.Herein, the independent silk with uninterrupted length need not It is identical.Silk in each can depend on its needed for property but it is different types of.Monofilament or silk are by want The lay pitch is twisted together, to form stock or cord.All monofilament receive the identical lay pitch, and such typical case is to compress cord (wherein institute Have filament diameter equal), (wherein monofilament is assembled with a certain pattern for warrington type strand (Warrington) or Xi Lushi (Seale) stock Together).Alternatively, stock can be made with layer, and wherein the layer of monofilament is twisted with the fingers around center monofilament or precursor stock with the layer lay pitch Close, formation stratiform cord (such as 3+9+15 cords, wherein the core strand that 3 monofilament are twisted with the fingers together is surrounded by the layer of 9 monofilament, and The final layer with 15 monofilament).As another example, steel stock is the so-called cord of 7 X 7, is made up of the core strand of 7 monofilament, Include 6 personal shares of 7 monofilament twisted around core strand with the identical lay pitch.

The core of hawser can also be thread or independent hawser.As an example, the core can be such as by poly- third The synthetic rope that alkene, nylon, the fiber of polyester are made.Preferably use the yarn of high modulus fibre, such as liquid crystal polymer, such as PPTA (is known as) aromatic polyamides, High molecular weight polyethylene (HMwPE), such asWith the yarn of the fiber of PBO (polyparaphenylene's benzodiazole) ultra-high molecular weight polyethylene (UHMwPE).It is excellent Selection of land, the core is independent hawser.

Multiple silent partners and multiple separations stock can be made up of the metal or metal alloy of such as copper, aluminium or steel.Preferably, institute State hardness of the hardness less than the multiple silent partners of hawser of multiple separation stocks.It is the core, the multiple outer as an example Stock and the multiple separation stock are made of entirely steel.Preferably, the core and the multiple silent partners by carbon content 0.2 to 1.5 Weight percentage ranges in high-carbon steel be made, and the multiple separate weight percent of the stock by carbon content 0.02 to 0.2 It is made than the mild steel in scope.As an example, high-carbon steel can have scope between 0.2wt% and 0.8wt% Silicone content, the 0.05wt% of carbon content, the manganese content from 0.3wt% to 0.80wt%, scope from 0.10wt% to 0.50wt% Maximum sulfur, 0.05wt% maximum phosphorus content, remaining is iron and may micro copper, chromium, nickel, vanadium, molybdenum or boron.Alternatively Ground, the silk of silent partners can also have following component：Carbon content of the scope between 0.8wt% and 1.0wt%, from 0.5wt% to 0.8wt% manganese content, silicone content of the scope from 0.1wt% to 5.0wt%, chromium of the scope from 0.1wt% to 0.5wt% contains Amount, the content of vanadium from 0.02wt% to 0.2wt%, remaining is iron and possible trace content.As an example, the silk of silent partners has Have 0.84wt% carbon, 0.67wt% manganese, 0.23wt% silicon, 0.24wt% chromium, 0.075wt% vanadium, remaining be iron and The composition of possible trace content.Low-carbon composition of steel is following composition of steel, wherein may in addition to silicon and manganese all elements it is equal With the content for being less than 0.50% by weight, for example, it is less than 0.20% by weight, for example, is less than 0.10% by weight.For example, silicon Exist with the amount of maximum 1.0% by weight, such as by weight maximum 0.5%, such as by weight 0.3%, or by weight 0.15%. For example, manganese exists with the amount of maximum 2.0% by weight, such as maximum 1.0%, such as by weight 0.50% or by weight by weight 0.30%.Separate an example of stock for mild steel, carbon content scope is up to by weight 0.20%, and for example scope is up to by weight Amount 0.06%.Minimum carbon content may be about by weight 0.02%.

As an alternatives, the core and the multiple silent partners are made up of steel (high-carbon steel or mild steel), and The multiple separation stock is made of copper.Copper is used as to the material for separating stock, or the material that mild steel is used as separating stock simultaneously will The material that high-carbon steel is used as silent partners has the following advantages that：When there is fretting wear, because it is relatively soft, institute that these, which separate stock, Can be " weak " part with these separation stocks.By this way, metal separation stock is attributed to, silent partners is not subjected to huge fine motion mill Damage.

According to the present invention, including the first plastic sheath the hawser the multiple silent partners and the multiple separation stock it Between permeate.Partition member between the silent partners of hawser is in the mode of stock, it is allowed to which plastics are matched somebody with somebody around stock is separated, thus plastics not by Partition member or wrapped blocking.Plastic sheath can be penetrated into the multiple separation stock.This is more wrapped than fiber be it is favourable, because To be permeated relative to plastics, fiber is wrapped without space or no adequate space.On the other hand, from the point of view of the angle viewpoint of manufacture, During the punching press and torsade of hawser, separate stock can than the more preferable processing of single silk with same diameter because stock with than Single silk is preferably flexible.

On the one hand the application for separating stock is provided than the preferably resistance to fretting wear of plastics or fiber rod separator, and another Aspect ensure that has minimum interval between silent partners, to promote plastics to be flowed during sheath is applied and by separating stock, so as to With the infiltration of complete plastics.Therefore, benefit from plastic sheath to permeate completely, the performance of rope can be significantly improved.

Preferably, the hawser further comprises the second plastic sheath on the core or hawser.On the hawser The first plastic sheath and the second plastic sheath on the core can be by polyamide (PA), polyethylene (PE), poly- to benzene two Formic acid glycol ester (PET), polypropylene (PP), polyurethane (PU), polysulfones (PES), ethylene tetrafluoroethylene copolymer (ETFE) etc. It is made.First and second plastic sheaths can be made from the same material or a different material.Plastic sheath is formed along the outer of hawser Week is extended with the thickness preferably in 0.5mm to 5mm scopes (such as 2mm to 4mm).When core is independent hawser, thereon Two plastic sheaths can produce more round cross section, and separate stock and silent partners can be placed on plastic sheath by accurately twisting with the fingers Between.Furthermore it is possible to avoid core and separate the buffering (cushion) between stock and silent partners.

As an example, each in the multiple separation stock can be coated with the 3rd plastic sheath, be divided with reducing Buffering between stock and silent partners.Preferably, plastic coating is and first and second plastic sheath identical material.

First, second and/or the 3rd plastic sheath can be made up of any appropriate method, preferably by extrusion molding system Into.

Both multiple silent partners and multiple separations stock can have approximate circle cross section.Preferably, multiple silent partners have Identical size, and multiple separation stocks are also identical.The diameter ratio of the diameter of the multiple silent partners and the multiple separation stock In 3 to 10 scope, such as 6 to 10.The metal that this ratio is played in gap length and hawser between control silent partners is filled out Fill the effect of rate.

As an example, the diameter of the multiple silent partners is in 2mm to 40mm scope, such as 10mm to 30mm's In scope or in 15mm to 25mm scope.The diameter of the hawser is for example arrived in 5mm to 200mm scope in 10mm In 100mm scope or in 30mm to 50mm scope.Metal or the enhanced stock that separates of metal may be particularly useful in major diameter Rope, wherein separate gap between stock and rope quite big (for example, about 1mm, or about 2mm, even more greatly) and therefore allow Plastics are easily distributed around separator.For the rope of medium-small diameter, when needing by permeating completely to apply sheath this To be very important.During sheath is applied, for the good flow of plastics, it is desirable to minimum clearance.If interval too small, It is required that unusual high pressure.It is maintained by using the gap separated between stock, silent partners and plastics still can be from side warp Cross.For the rope of the core strand with coating, this is also important advantage.

Brief description of the drawings

With reference to detailed description, when combining non-limiting example and the accompanying drawing enclosed to consider, the present invention will be able to more preferably Ground understanding, in the accompanying drawings：

Fig. 1 schematically shows an example of the hawser according to the present invention.

Fig. 2 schematically shows another example of the hawser according to the present invention.

Embodiment

A structure of the hawser of the present invention is illustrated in Fig. 1.The hawser has 44mm or 71mm diameter, and EP8 X K36WS+IWRC (1+6-8-8+8) configuration.Here, the hawser of EP reference polymer overmolds.What the hawser was compressed with 8 Silent partners, silent partners has 36 silks being twisted together with the combined parallel lay pitch, is indicated by 8 X K36WS.Core is independent hawser (IWRC).It is whole Individual rope has Wa Lingdun structures (1+6-8-8+8), is parallel twisting away from stock structure, with alternately including big cord and small curtain The number of cord is twice of the number of cord in lower floor in the silk outer layer of line, outer layer.

As shown in Figure 1, hawser 10 has independent silk core (IWRC) 12, and it is provided with plastic sheath 14.Preferably, Plastic sheath 14 is made up of the hard plastic material of such as polyamide.Independent hawser 12 can be synthetic rope.Independent rope 12 is excellent Choosing is steel cable, and it is highly preferred that the inside of hawser 12 is for example lubricated by conventional pitch lubricant 16, conventional pitch lubricates Agent 16 is embedded in core 12 by plastic sheath 14.

On the periphery of plastic sheath 14, it is disposed with 8 be made up of metal or alloy and separates the outer of stocks 17 and 8 compressions Stock 18.Preferably, separate stock 17 and silent partners 18 is formed from steel.It is highly preferred that the carbon content ratio for the steel of silent partners 18 is used to divide It is high every the carbon content of the steel of stock 17.Separate stock 17 to be arranged between the silent partners 18 of compression, to twist with the fingers on plastic sheath 14 It is each to creating gap between silent partners in the silent partners 18 of compression.

Hawser 10 is surrounded with plastic sheath 19.Preferably, plastic sheath 19 is made up of polypropylene, and more preferably leads to Cross extrusion molding generation.Plastic sheath 19 is extruded with the periphery along hawser with 1mm to 2mm scopes (such as 1.50mm) thickness Extension.

Such hawser is uniformly distributed considerable improvement of the aspect offer 5% to 10% in GAP.

Fig. 2 illustrates another example of the hawser according to the present invention.Hawser 20 has 7 X 7+7 X 19W structures.Steel cord 27 are inserted as separator, extend from core 22 and each to extending between silent partners in multiple silent partners 28, to produce simultaneously Keep each gap between silent partners in multiple silent partners 28.

Claims

1. a kind of hawser, including：

Core,

Multiple silent partners and multiple separations stock on the core are twisted with the fingers, and

Around the multiple silent partners and the first plastic sheath of the multiple separation stock,

Wherein the multiple separation stock extends from the core and extended between each pair silent partners in the multiple silent partners, to produce Give birth to and keep the gap between each pair silent partners in the multiple silent partners.

2. hawser according to claim 1, wherein the core, the multiple silent partners and the multiple separation stock by metal or Metal alloy is made.

3. hawser according to claim 1 or 2, wherein the multiple hardness for separating stock is less than the hard of the multiple silent partners Degree.

4. the hawser according to any one of preceding claims, wherein first plastic sheath is in the multiple silent partners Permeated between the multiple separation stock.

5. the hawser according to any one of preceding claims, wherein first plastic sheath penetrate into it is the multiple Separate in stock.

6. the hawser according to any one of preceding claims, wherein the core, the multiple silent partners and the multiple Separate stock to be formed from steel.

7. hawser according to claim 6, wherein the weight of the core and the multiple silent partners by carbon content 0.2 to 1.5 High-carbon steel in amount percentage range is made, and the multiple percentage by weight model for separating stock by carbon content 0.02 to 0.2 Mild steel in enclosing is made.

8. the hawser according to any one of preceding claims, wherein the core is thread.

9. the hawser according to any one of preceding claims, wherein the hawser further comprises on the core Second plastic sheath.

10. the hawser according to any one of preceding claims, wherein the multiple each separation stock separated in stock By the 3rd plastic sheath cladding.

11. the hawser according to any one of preceding claims, wherein first plastic sheath, second plastics At least one in sheath and the 3rd plastic sheath is by polyamide (PA), polyethylene (PE), polyethylene terephthalate Ester (PET), polypropylene (PP), polyurethane (PU), polysulfones (PES) or ethylene tetrafluoroethylene copolymer (ETFE) are made.

12. the hawser according to any one of preceding claims, wherein first plastic sheath, second plastics At least one in sheath and the 3rd plastic sheath is made up of extrusion molding.

13. the hawser according to any one of preceding claims, wherein the diameter of the multiple silent partners with it is the multiple Separate the diameter ratio of stock in 3 to 10 scope.

14. the hawser according to any one of preceding claims, wherein the diameter of the multiple silent partners is in 2mm to 40mm Scope in.

15. the hawser according to any one of preceding claims, wherein the diameter of the hawser is 5mm to 200mm's In scope.