CN102666344A - Rope for elevators, and elevator device - Google Patents

Rope for elevators, and elevator device Download PDF

Info

Publication number
CN102666344A
CN102666344A CN2009801626842A CN200980162684A CN102666344A CN 102666344 A CN102666344 A CN 102666344A CN 2009801626842 A CN2009801626842 A CN 2009801626842A CN 200980162684 A CN200980162684 A CN 200980162684A CN 102666344 A CN102666344 A CN 102666344A
Authority
CN
China
Prior art keywords
resin
rope
elevator
riata
resinous principle
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.)
Granted
Application number
CN2009801626842A
Other languages
Chinese (zh)
Other versions
CN102666344B (en
Inventor
村井道雄
光井厚
中川博之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN102666344A publication Critical patent/CN102666344A/en
Application granted granted Critical
Publication of CN102666344B publication Critical patent/CN102666344B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • D07B5/006—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties by the properties of an outer surface polymeric coating
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2087—Jackets or coverings being of the coated type
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2083—Jackets or coverings
    • D07B2201/2092—Jackets or coverings characterised by the materials used
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2003—Thermoplastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/20—Organic high polymers
    • D07B2205/2064—Polyurethane resins
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Ropes Or Cables (AREA)

Abstract

Disclosed is a rope for elevators, which comprises a rope main body and a resin coating layer covering the outer periphery of said rope main body, wherein said resin coating layer is formed of a molded article of a resin composition, said resin composition containing a first resin component and a second resin component at a mass ratio of 90:10 to 70:30 and the difference between the glass transition temperature of said first resin component and the glass transition temperature of said second resin component being 20oC or greater. In the aforesaid rope for elevators, a rope is coated with a resin material that has a stable friction coefficient without depending on temperature or sliding speed, which makes it possible to stably brake a cage over a wide speed range, i.e., from a minor sliding speed area required for keeping the cage in a resting state to a sliding speed in normal operation.

Description

Riata for elevator and lift appliance
[technical field]
The Riata for elevator that is used for suspension craning cab and the lift appliance that the present invention relates to use in the elevator.
[background technology]
Lift appliance has following formation usually: rope on the rope sheave that is installed on the elevator motor, is hung at an end of rope and to be provided with car, hang at the other end of rope and be provided with the counterweight (hammer) that is used for keeping with car balance.In lift appliance, in the past,, used and had rope diameter (rope footpath hereinafter referred to as for premature wear or the fracture that prevents rope with such formation.) the rope sheave of diameter more than 40 times.(hereinafter referred to as rope sheave directly for the diameter of this rope sheave.) directly related with the go up and down driving torque of required motor of car, thereby be that the various parts of lift appliance of representative have been realized miniaturization, lightweight through reducing that the rope sheave footpath makes with the motor.Wherein, in order to reduce the rope sheave footpath, for the above reasons, the rope footpath also must reduce.
However, without changing the number of roots rope rope diameter is reduced, the strength of the rope will reduce the maximum rated load of the elevator (may be stowed by weight) will be reduced.In addition, if increase the radical of rope, then the structure of lift appliance can become complicated.In addition, if reduce the rope sheave footpath, then the flex life of rope shortens, and needs the frequent change rope.
As the means that address these problems, there is document to propose following Riata for elevator: many steel wire twisteds to be processed strand, many twisteds of this strand are processed rope, coat the most peripheral (for example, referring to patent documentation 1) of this rope with resin material.The lift appliance that has used such Riata for elevator is through the resin material that coats the rope most peripheral and the friction force between the rope sheave and driven, therefore hopes to improve the frictional behavior of resin material and make its stabilization.
As the method that improves the frictional behavior between rope sheave and rope, the Riata for elevator (for example, referring to patent documentation 2) that has document to propose to utilize the polyurethane clad material of the content of wax not that rope is coated.
Incidentally, the friction coefficient of known resin material depends on sliding velocity and temperature usually to a great extent.Also the viscoelastic properties such as dynamic viscoelastic of known resin material have correlativity (Williams-Landel-Ferry formula (WLF formula)) between sliding velocity and temperature in addition.Particularly under the situation of rubber, also have same correlativity between viscoelastic property and sliding velocity and the temperature, thereby show the viscoelastic property relevant with the frictional behavior of rubber (for example, referring to non-patent literature 1) of rubber.
[prior art document]
[patent documentation]
Patent documentation 1: TOHKEMY 2001-262482 communique
Patent documentation 2: Japan special table 2004-538382 communique
[non-patent literature]
Roll up in non-patent literature 1:K.A. グ ロ ッ シ ェ (K.A.Grosch), " the frictional behavior と viscoelastic property と of go system Seki system (frictional behavior of rubber and the relation of viscoelastic property, The relation between the friction and visco-elastic properties of rubber) ", プ ロ シ ー デ ィ Application グ オ Block ザ ロ イ ヤ Le ソ サ エ テ ィ ー A (Proceedings of the Royal Society A), on June 25th, 1963, the 274th, No. 1356, p.21-39
[summary of the invention]
[inventing problem to be solved]
As stated, along with sliding velocity or variation of temperature, the friction coefficient that comprises the resin material of rubber can change; Along with the increase of sliding velocity or the rising of temperature, comprise the friction coefficient change of the resin material of rubber.Therefore, even be the polyurethane clad material of the not content of wax described in the patent documentation 2, friction coefficient also can change under the situation of sliding velocity or temperature traverse, has the problem that car can't be stablized braking.And, stop for a long time in order to make car, need keep the quiescence of car through the friction force between rope and rope sheave; Even and utilize the polyurethane clad material of the not content of wax of patent documentation 2 record to coat rope; The change of the friction coefficient of polyurethane clad material is also very big; Can't the stable maintenance friction coefficient under small sliding velocity, the stop position with car is the out-of-position problem in time.
Thereby; The present invention makes for addressing the above problem; Its purpose is to provide a kind of Riata for elevator and lift appliance, wherein, utilizes stable friction factor and the resin material that do not rely on the friction coefficient of temperature or sliding velocity coats rope; Thus on a large scale under the sliding velocity---the sliding velocity when keeping the required small sliding velocity zone of car quiescence to common running can make the stable braking of car.
[being used to solve the means of problem]
The inventor has carried out in-depth study in order to address the above problem to the frictional behavior of various resin materials, and the result draws following opinion.
Fig. 1 is frequency and the loss modulus E that the different resin material (that is the friction coefficient resin material different with respect to the change of sliding velocity) of the sliding velocity dependence of friction coefficient is shown " the example of diagram of curves of relation.Can know the loss modulus E of the resin material that the sliding velocity dependence of friction coefficient is little by Fig. 1 " frequency dependence little (that is under the situation that frequency changes, loss modulus E, " change little); Relative therewith, the loss modulus E of the resin material that the sliding velocity dependence of friction coefficient is big " frequency dependence big (that is under the situation that frequency changes, loss modulus E, " change big).That is, can know the sliding velocity dependence and the loss modulus E of friction coefficient " frequency dependence have correlativity, through reducing loss modulus E " frequency dependence, can reduce the sliding velocity dependence of friction coefficient.
Based on such opinion, the inventor has carried out further research for the composition of resin material, and the result finds, the formed body that is obtained by following resin combination can make the sliding velocity dependence of frequency dependence and the friction coefficient of loss modulus all have to reduce; It is two kinds of resinous principles more than 20 ℃ that this resin combination uses the difference of glass transition temperature, and the mass ratio of these two kinds of resinous principles is in particular range simultaneously.
Promptly; The present invention relates to a kind of Riata for elevator; It is the Riata for elevator that possesses the rope main body and the resin-coated layer of the periphery that covers above-mentioned rope main body, and this Riata for elevator is characterised in that, above-mentioned resin-coated layer is that the formed body by following resin combination constitutes; Said resin combination contains the 1st resinous principle and the 2nd resinous principle with 90: 10～70: 30 mass ratio, and the difference of the glass transition temperature of the 1st resinous principle and the 2nd resinous principle is more than 20 ℃.
The invention still further relates to lift appliance, this lift appliance is characterised in that it possesses above-mentioned Riata for elevator.
[effect of invention]
According to the present invention; Through utilize stable friction factor do not rely on temperature or sliding velocity resin material coat rope, can provide under a kind of sliding velocity on a large scale of the sliding velocity when keeping the required small sliding velocity zone of car quiescence and can make stable Riata for elevator and the lift appliance of braking of car to running usually.
[description of drawings]
Fig. 1 is the diagram of curves of relation that frequency and the loss modulus of the different resin material of the sliding velocity dependence of friction coefficient are shown.
Fig. 2 is the section drawing of Riata for elevator of the present invention.
Fig. 3 is the viscoelastic spectra of general resin material.
Fig. 4 is used to carry out system's pie graph that friction coefficient is estimated.
[specific embodiment]
Embodiment 1.
Riata for elevator of the present invention possesses the resin-coated layer of rope main body and the periphery that covers the rope main body.
Use accompanying drawing that the preferred implementation of Riata for elevator of the present invention is described below.
Fig. 2 is the section drawing of Riata for elevator.Among Fig. 2, Riata for elevator possesses the resin-coated layer 2 of rope main body 1 and the periphery that covers rope main body 1.
This Riata for elevator is a characteristic with the resin-coated layer 2 of the periphery of covering rope main body 1, thereby limits for the rope main body that forms resin-coated layer 21 is not special, can use known material.As the example of rope main body 1, can enumerate strand or rope that the steel wire twisted more than 2 forms! コ ー De) etc. load-supporting part.And this load-supporting part is not limited to cord-like, also can be band shape.Need to prove, about load-supporting part, patent documentation 1 and 2 and No. the 2004/002868th, No. the 2003/050348th, International Publication and International Publication etc. in write up is arranged, they are quoted in this specification sheets with the form of reference.
Resin-coated layer 2 is that the formed body of the resin combination of the two kinds of resinous principles (the 1st resinous principle and the 2nd resinous principle) more than 20 ℃ constitutes by the difference that comprises glass transition temperature.
Here, in Fig. 3, illustrated common resin material (TPUE) viscoelastic spectra (Storage modulus E ', loss modulus E " and losstangenttan) an example.In this viscoelastic spectra, mode determination is that beam mode, mensuration frequency are that 10Hz, programming rate are 5 ℃/minute.Can know loss modulus E by Fig. 3 " spectrogram approximately-40 ℃ the peak is arranged, this temperature is equivalent to the glass transition temperature of TPUE.
In the present invention; The difference that contains glass transition temperature through use is the resin combination of two kinds of resinous principles more than 20 ℃; Thus at the loss modulus E of the resin-coated layer 2 that the formed body by resin combination constitutes " spectrogram in, loss modulus E " the peak broaden or be divided into 2 small peaks.Its result, the frequency dependence of the loss modulus of the resin-coated layer 2 that is made up of the formed body of resin combination diminishes.
Form resin-coated layer 2 the 1st resinous principle that resin combination contained if with the difference of the glass transition temperature of the 2nd resinous principle be just not special qualification the more than 20 ℃, but be preferably TPUE.Here, so-called TPUE refer to usually by hard section of the carbamic acid ester structure with soft section material that constitutes, at room temperature demonstrates caoutchouc elasticity derived from the polyalcohol raw material.TPUE is divided into polyethers system, polyester system, polycarbonate-based, silicone-based, ethylene series etc. according to the kind difference of employed polyalcohol raw material.
Such TPUE can be made through known method usually.For example, can use isocyanates, polyalcohol and chain extender, they are carried out copolymerization as raw material.This polymerization reaction is generally known, and the blending ratio of raw material and synthesis condition can suit to adjust according to employed raw material, do not have special qualification.
And,, can use general commercially available material as TPUE.
Obtaining under the situation of TPUE,, can enumerate toluenediisocyanate, 4 as isocyanates through synthetic; 4 '-methyl diphenylene diisocyanate, 1; 5-naphthalene diisocyanate, tolidine diisocyanate, 1,6-hexamethylene diisocyanate, IPDI, XDI, hydrogenated xylene diisocyanate, triisocyanate, tetramethylxylene diisocyanate, 1,6; 11-undecane triisocyanate, 1; 8-diisocyanate methyloctane, lysine ester triisocyanate, 1,3,6-hexa-methylene triisocyanate, bicycloheptane triisocyanate etc.They can use separately or two or more combination is used.
As polyalcohol, can enumerate polyester polyol, polycarbonate polyol, polyester ether polyalcohol, polyether glycol, silicone polyalcohol, polyolefin polyhydric alcohol etc.They can use separately or two or more combination is used.
As polyester polyol, can enumerate the polyester polyol that dicarboxylic acid or its ester compounds or acid anhydrides and glycol obtain through condensation reaction; The polylactone glycol that internal ester monomers such as 6-caprolactone obtain through ring-opening polymerisation etc.As dicarboxylic acid, use aliphatic dicarboxylic acids such as succinate, adipic acid, decanedioic acid, azelaic acid here; Aromatic dicarboxylic acids such as phthalic acid, terephthalic acid, isophthalic acid, naphthalene dicarboxylic acids; Alicyclic dicarboxylic acids such as hexahydroterephthalic acid, hexahydro-phthalic acid, hexahydro isophthalic acid; As glycol, make spent glycol, 1, ammediol, 1,2-propylene glycol, 1,3-butylene glycols, 1,4-butylene glycols, 1,5-pentanediol, 1,6-hexandiol, 3-methyl isophthalic acid, 5-pentanediol, neopentyl glycol, 1,3-ethohexadiol, 1,9-nonanediol etc.They can use separately or two or more combination is used.
As polycarbonate polyol, can enumerate ethanediol, 1, ammediol, 1; 2-propylene glycol, 1,3-butylene glycols, 1,4-butylene glycols, 1; 5-pentanediol, 1,6-hexandiol, 3-methyl isophthalic acid, 5-pentanediol, neopentyl glycol, 1; 8-ethohexadiol, 1, reacting with carbonic acid two ethyls, diethyl carbonate etc. more than a kind and polycarbonate polyol of obtaining etc. in the polyalcohols such as 9-nonanediol, diethylene-glycol.Specifically, can enumerate polyhexamethylene carbonic ester glycol, PTMC glycol, gather 3-methyl (pentamethylene) carbonic ester glycol and their copolymer.These materials can use separately or two or more combination is used.
As the polyester ether polyalcohol, can enumerate the condensation reaction thing of glycol such as above-mentioned aliphatic dicarboxylic acid, aromatic dicarboxylic acid, alicyclic dicarboxylic acid or its ester or acid anhydrides and diethylene-glycol, propylene oxide adduct etc.These materials can use separately or two or more combination is used.
As polyether glycol, the cyclic ether that can enumerate epoxyethane, epoxypropane, tetrahydrofuran etc. carries out polymerization respectively and carbowax, polypropylene glycol, polytetramethylene glycol and their copolyether etc. that obtain.These materials can use separately or two or more combination is used.
As the silicone polyalcohol, can enumerate dimethyl polysiloxane glycol that end has 2 reactive hydrogens, methyl phenyl silicone glycol, amino-modified silicone oil, two terminal diamines modified silicon oils, polyether modified silicon oil, pure modified silicon oil, carboxy-modified silicone oil, phenyl modified silicone oil etc.These materials can use separately or two or more combination is used.
As polyolefin polyhydric alcohol, can enumerate polyisoprene polyalcohol, polybutadiene polyol or its styrene, acrylonitrile copolymer, reach their hydride etc.These materials can use separately or two or more combination is used.
As chain extender, can use low molecular weight polyols.For example can enumerate ethanediol, 1, ammediol, 1; 2-propylene glycol, 1,3-butylene glycols, 1,4-butylene glycols, 1; 5-pentanediol, 1,6-hexandiol, 3-methyl isophthalic acid, 5-pentanediol, neopentyl glycol, 1; 8-ethohexadiol, 1,9-nonanediol, diethylene-glycol, 1, aliphatic polyols such as 4-cyclohexanedimethanol, glycerine; 1, aromatic diols such as the ethylene oxide adduct of 4-xylenediol, bisphenol-A, bisphenol-A, propylene oxide adduct.These materials can use separately or two or more combination is used.
In the various TPUEs,, aspect the hydrolysis that prevents environment for use, to produce, consider, be preferably the TPUE beyond the polyester system for the 1st resinous principle; If consider desired various characteristics in the Riata for elevator (for example flexibility, durability, resistance to cold), then more preferably JIS A hardness (hardness of utilizing A type hardness tester instrumentation to get of JIS K7215 defined) is the polyethers based thermoplastic polyurethane elastomer below 95 more than 85.
It is higher more than 20 ℃ or hang down the resinous principle more than 20 ℃ than the glass transition temperature of the 1st resinous principle that the 2nd resinous principle that resin combination contained that forms resin-coated layer 2 is a glass transition temperature.
As the 2nd resinous principle with such characteristic; Above-mentioned condition is just not special to be limited as long as satisfy; From the aspect of durability, abrasion test, be preferably the TPUE or the amilan that use the polyalcohol different to form as raw material with the TPUE of the 1st resinous principle.And; In various TPUEs; For the 2nd resinous principle; If consider desired various characteristics in the Riata for elevator (for example flexibility, durability, resistance to cold), then preferred JIS A hardness (hardness of utilizing A type hardness tester instrumentation to get of JIS K7215 defined) is polycarbonate-based thermoplastic polyurethane elastomer below 95 or silicone-based TPUE more than 85.
As amilan, can enumerate polyamide-based thermoplastic elastomer, polyamide-based thermoplastic base resin etc.
So-called polyamide-based thermoplastic elastomer is meant usually by hard section of polyamide soft section material that constitutes, at room temperature demonstrates caoutchouc elasticity with polyethers or polyester.Wherein, from the aspect of hydrolytic resistance, preferably by hard section of polyamide soft section polyamide-based thermoplastic elastomer that constitutes with polyethers.
Polyamide-based thermoplastic base resin typically refers to the thermoplastic base resin that has polyamide bond in the strand, can enumerate nylon 6, nylon 66, nylon 11, nylon 12 etc. as an example.These materials can use separately or two or more combination is used.
The mass ratio of the 1st resinous principle and the 2nd resinous principle is 90: 10～70: 30.If the mass ratio of the 2nd resinous principle then can not get through mixing the effect (the particularly stable friction coefficient in the resin-coated layer 2) that the 2nd resinous principle obtains low excessively.Otherwise if the mass ratio of the 2nd resinous principle is too high, then the characteristic of the 2nd resinous principle is preponderated, and really up to the mark by the resin-coated layer 2 that the formed body of resin combination constitutes, the flexibility of rope durability impaired or resin-coated layer 2 reduces.Its result, if drive the lift appliance that uses this rope, the problems such as durability variation in the time of then can occurring making consumes electric power increase or alternating bending.
The resin combination that forms resin-coated layer 2 can prepare through using known means that mentioned component is mixed.For this resin combination, can carry out moulding according to the mode of the periphery that covers rope main body 1 through using known moulding means such as extrusion molding, injection moulding, process resin-coated layer 2 thus.And,, can implement furnace run for the rerum natura of the article shaped that makes resin combination is stable.The condition of furnace run can suit to adjust according to employed resin combination, not special the qualification.
The glass transition temperature of resin-coated layer 2 is high more, and then the sliding velocity dependence of friction coefficient is more little, and the modulus of elasticity of resin-coated layer 2 also tends to increase in addition.Therefore; Rope being formed with the high resin-coated layer 2 of glass transition temperature is used under the situation of lift appliance; The flexibility of rope is tended to impaired; When perhaps under the environment of the glass transition temperature that is higher than resin-coated layer 2, making rope carry out bending repeatedly, has the tendency of endurance failures such as breaking of the resin-coated layer 2 that is easy to generate due to the stress.Therefore, for loss modulus E by viscoelastic spectra " the glass transition temperature of resin-coated layer 2 of peak temperature defined, under the situation that only has 1 above-mentioned peak, this temperature is preferably below-20 ℃, more preferably-25 ℃ below.In addition, have at above-mentioned peak temperature under 2 the situation, the glass transition temperature of the 1st resinous principle that resin-coated layer 2 is contained is preferably below-20 ℃, more preferably-25 ℃ below.
In addition, the JIS A hardness of resin-coated layer 2 (hardness of utilizing A type hardness tester instrumentation to get of JIS K7215 defined) is if greater than 98, and then the flexibility of rope is easy impaired, and when driving the lift appliance that uses this rope, consumes electric power is tended to increase.Otherwise if the JIS A hardness of resin-coated layer 2 is less than 85, and the durability during then as the Riata for elevator alternating bending has the tendency of variation.Therefore, the JIS A hardness of resin-coated layer 2 is preferably more than 85 below 98.
In Riata for elevator, consider from the aspect of the adaptation that improves 2 pairs of rope main body 1 of resin-coated layer, can on rope main body 1, be coated with cement in advance, form resin-coated layer 2 then.As cement,, can enumerate for example Chemlok (registered trade mark (RTM)) 218 (LORD FarEast Incorp Ltd manufacturing) as long as be that metal and polyurethane do not limit with cement is just special.
Have in the Riata for elevator of above-mentioned characteristic; Do not rely on the resin material that temperature or sliding velocity have stable friction coefficient and coat rope owing to utilizing; Thereby be used under the situation of lift appliance, can make the stable braking of car under the sliding velocity on a large scale of the sliding velocity when keeping the required small sliding velocity zone of car quiescence to common running.
[embodiment]
Embodiment is shown below the present invention is specified, but the present invention is not limited to following embodiment.
(embodiment 1)
The particle of following polyethers based thermoplastic polyurethane elastomer (JIS A hardness 95, glass transition temperature-30 ℃) is mixed with 90: 10 mass ratio with the particle of polycarbonate-based thermoplastic polyurethane elastomer (5 ℃ of JIS A hardness 95, glass transition temperatures); Obtain resin combination: make polytetramethylene glycol, 4; 4 '-methyl diphenylene diisocyanate and 1; The particle that the 4-butylene glycols reacts the polyethers based thermoplastic polyurethane elastomer that forms (JIS A hardness 95, glass transition temperature-30 ℃) with make polyhexamethylene carbonic ester glycol, 4; 4 '-methyl diphenylene diisocyanate and 1,4-butylene glycols react the particle of the polycarbonate-based thermoplastic polyurethane elastomer (5 ℃ of JIS A hardness 95, glass transition temperatures) that forms.
Next, this resin combination is supplied in the extrusion shaping machine, carry out extrusion molding, mold the resin-coated layer in the periphery of rope main body according to the mode of the periphery that covers the rope main body.Here; The rope main body is used like what International Publication was put down in writing for No. 2003/050348 the steel wire more than 2 is carried out twisted and the strand that forms; Before the resin-coated layer forms, Chemlok (registered trade mark (RTM)) 218 (LORD Far East Incorp Ltd manufacturing) is applied to the rope main body in advance, carries out drying.
Next,, this rope is carried out heating in 2 hours, obtain the Riata for elevator of diameter 12mm at 100 ℃ for the rerum natura that makes the resin-coated layer is stable.Carry out viscoelastic spectra for the resin-coated layer of this Riata for elevator and measure that (in this mensuration, mode determination is that beam mode, mensuration frequency are that 10Hz, programming rate are 5 ℃/minute.Below embodiment and comparative example in also be identical condition determination.), the loss modulus E of viscoelastic spectra " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-30 ℃.And the resin-coated layer to this Riata for elevator has carried out JIS A hardness test, and JIS A hardness is 95 as a result.
(embodiment 2)
Except the mass ratio of the particle of the particle that makes polyethers based thermoplastic polyurethane elastomer and polycarbonate-based thermoplastic polyurethane elastomer is 80: 20, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer to this Riata for elevator carries out viscoelastic spectra and JIS A hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-28 ℃, JIS A hardness is 95.
(embodiment 3)
Except the mass ratio of the particle of the particle that makes polyethers based thermoplastic polyurethane elastomer and polycarbonate-based thermoplastic polyurethane elastomer is 70: 30, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-25 ℃, JIS A hardness is 95.
(embodiment 4)
Use with the particle of the polyethers based thermoplastic polyurethane elastomer that uses among the embodiment 1 with make two terminal methyl group (カ Le ビ ニ ー Le) modified siloxane, polytetramethylene glycol, 4; 4 '-methyl diphenylene diisocyanate and 1; The particle that the 4-butylene glycols reacts the silicone-based TPUE that forms (JIS A hardness 95, glass transition temperature-50 ℃) mixes with 80: 20 mass ratio and the resin combination that obtains; In addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JISA hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-32 ℃, JISA hardness is 95.
(embodiment 5)
Use mixes with the particle of nylon 6 (50 ℃ of glass transition temperatures) particle of the polyethers based thermoplastic polyurethane elastomer that uses among the embodiment 1 and the resin combination that obtains with 80: 20 mass ratio; In addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test; The loss modulus E of viscoelastic spectra as a result " demonstrate 2 peaks; being equivalent to the 1st resinous principle---the peak temperature of the glass transition temperature of polyethers based thermoplastic polyurethane elastomer is-28 ℃, and JIS A hardness is 97.
(embodiment 6)
Use mixes with the particle of nylon 66 (55 ℃ of glass transition temperatures) particle of the polyethers based thermoplastic polyurethane elastomer that uses among the embodiment 1 and the resin combination that obtains with 80: 20 mass ratio; In addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test; The loss modulus E of viscoelastic spectra as a result " demonstrate 2 peaks; being equivalent to the 1st resinous principle---the peak temperature of the glass transition temperature of polyethers based thermoplastic polyurethane elastomer is-30 ℃, and JIS A hardness is 98.
(embodiment 7)
Use mixes with the particle of nylon 12 (40 ℃ of glass transition temperatures) particle of the polyethers based thermoplastic polyurethane elastomer that uses among the embodiment 1 and the resin combination that obtains with 80: 20 mass ratio; In addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JISA hardness test; The loss modulus E of viscoelastic spectra as a result " demonstrate 2 peaks; being equivalent to the 1st resinous principle---the peak temperature of the glass transition temperature of polyethers based thermoplastic polyurethane elastomer is-30 ℃, and JIS A hardness is 97.
(comparative example 1)
Only use the polyethers based thermoplastic polyurethane elastomer that uses among the embodiment 1 to form the resin-coated layer, in addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-30 ℃, JIS A hardness is 95.
(comparative example 2)
Only use the polycarbonate-based thermoplastic polyurethane elastomer that uses among the embodiment 1 to form the resin-coated layer, in addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is 5 ℃, JISA hardness is 95.
(comparative example 3)
Only use the silicone-based TPUE that uses among the embodiment 4 to form the resin-coated layer, in addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-50 ℃, JIS A hardness is 95.
(comparative example 4)
Only use the nylon 12 that uses among the embodiment 7 to form the resin-coated layer, in addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JISA hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is 40 ℃, JIS A hardness is 100.
(comparative example 5)
Except the mass ratio of the particle of the particle that makes polyethers based thermoplastic polyurethane elastomer and polycarbonate-based thermoplastic polyurethane elastomer is 60: 40, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-15 ℃, JIS A hardness is 95.
(comparative example 6)
Use is with the polyethers based thermoplastic polyurethane elastomer that uses among the embodiment 1 and make polycaprolactone glycol, 4; 4 '-methyl diphenylene diisocyanate and 1; The particle that the 4-butylene glycols reacts the polyester based thermoplastic polyurethane elastomer that forms (JISD hardness 60, glass transition temperature-20 ℃) mixes with 80: 20 mass ratio and the resin combination that obtains; In addition, likewise obtain Riata for elevator with embodiment 1.Resin-coated layer for this Riata for elevator carries out viscoelastic spectra and JIS A hardness test, the loss modulus E of viscoelastic spectra as a result " demonstrate 1 peak, the peak temperature that is equivalent to glass transition temperature is-28 ℃, JIS A hardness is 97.
Carry out the evaluation of friction coefficient for the Riata for elevator that obtains in the foregoing description and the comparative example.Need to prove,, owing to the resin-coated layer is hard, do not obtain having can be used as the product that rope carries out the flexibility of alternating bending, because do not carry out this evaluation for the Riata for elevator of comparative example 4 and 5.
The evaluation of friction coefficient is carried out to small sliding velocity and two kinds of situation of the sliding velocity that turns round usually.The system's pie graph that is used to carry out this evaluation is seen Fig. 4.As shown in Figure 4, the Riata for elevator that obtains in embodiment and the comparative example 10 is carried out 180 degree with respect to rope sheave 11 reel, the one of which end is connected with bob-weight 12, the other end is fixed in ground 13.And, in order to measure the rope tension (T of bob-weight 12 sides 1), near the connecting part of Riata for elevator 10 and bob-weight 12, force transducer 14 is set.Likewise, in order to measure the rope tension (T of ground 13 sides 2), near the connecting part on Riata for elevator 10 and ground 13, force transducer 14 is set.
In this system, if with specified speed clickwise rope sheave 11, the rope tension (T of ground 13 sides then 2) corresponding reduction, the reduction value is corresponding to the friction force that is produced between Riata for elevator 10 and the rope sheave 11, at the rope tension (T of bob-weight 12 sides 1) between produce Tension Difference.Utilize the force transducer rope tension (T of 14 pairs of this moments 1And T 2) measure, be brought in the formula, thereby obtain the friction coefficient between Riata for elevator 10 and the rope sheave 11.In addition, at rope tension (T 1And T 2) mensuration in, the situation of small sliding velocity is defined as 1 * 10 -5The situation of mm/second, the sliding velocity that will turn round usually is defined as 0.01 mm/second and 1 mm/second, with these speed rope sheave 11 dextrorotations is transferred and implements to measure.And this surveys timer-operated temperature is 25 ℃.
[several 1]
μ = ln ( T 1 / T 2 ) K 2 θ
In the above-mentioned formula, θ is rope winding angle (i.e. 180 degree), K 2For by the coefficient of the shape of rope sheave groove decision (promptly 1.19).
For the result of the friction coefficient that obtains by above-mentioned formula, be that the friction coefficient under the situation of 1 mm/second is made as 100 with sliding velocity, to represent that with respect to the relative value of this friction coefficient with sliding velocity be 0.01 mm/second and 1 * 10 -5Friction coefficient under the situation of mm/second, the result lists in table 1.
[table 1]
Figure BDA00001710618900121
Result by table 1 can know, the friction coefficient of the Riata for elevator that obtains in embodiment and the comparative example demonstrates along with sliding velocity reduces and the tendency that reduces.But the change of the friction coefficient of the Riata for elevator that obtains among the embodiment is little, sliding velocity 1 * 10 -5Friction coefficient under the situation of mm/second can maintain more than 75% of friction coefficient under the situation of 1 mm/second.Relative therewith, the change of the friction coefficient of the Riata for elevator that obtains in the comparative example is big, sliding velocity 1 * 10 -5Friction coefficient under the situation of mm/second is reduced to below 45% of friction coefficient under the situation of 1 mm/second.
And, can know that by the result of embodiment 1～3 and comparative example 5 change of the high more then friction coefficient of the ratio of polycarbonate-based thermoplastic polyurethane elastomer is more little; But if the polycarbonate-based thermoplastic polyurethane elastomer is too high with respect to the mass ratio of polyethers based thermoplastic polyurethane elastomer, then the resin-coated layer of Riata for elevator can become really up to the mark, can not get having can be used as the product that rope carries out the flexibility of alternating bending.
Can know by above result; According to the present invention; Have the temperature of not relying on or sliding velocity and the resin material of stable friction coefficient coats rope through utilization, can provide under a kind of sliding velocity on a large scale of the sliding velocity when keeping the required small sliding velocity zone of car quiescence and can make stable Riata for elevator and the lift appliance of braking of car to running usually.

Claims (5)

1. Riata for elevator, it is the Riata for elevator that possesses the rope main body and the resin-coated layer of the periphery that covers said rope main body, this Riata for elevator is characterised in that,
Said resin-coated layer is that the formed body by following resin combination constitutes: this resin combination contains the 1st resinous principle and the 2nd resinous principle with 90: 10～70: 30 mass ratio, and the difference of the glass transition temperature of the 1st resinous principle and the 2nd resinous principle is more than 20 ℃.
2. Riata for elevator as claimed in claim 1 is characterized in that, it is the TPUE of raw material that said the 1st resinous principle has been to use different polyalcohols with said the 2nd resinous principle.
3. according to claim 1 or claim 2 Riata for elevator; It is characterized in that; Said the 1st resinous principle is a polyethers based thermoplastic polyurethane elastomer, and said the 2nd resinous principle is at least a kind that is selected from the group of being made up of polycarbonate-based thermoplastic polyurethane elastomer and silicone-based TPUE.
4. Riata for elevator as claimed in claim 1 is characterized in that, said the 1st resinous principle is a polyethers based thermoplastic polyurethane elastomer, and said the 2nd resinous principle is an amilan.
5. lift appliance, this lift appliance is characterised in that it possesses each described Riata for elevator of claim 1～4.
CN200980162684.2A 2009-12-02 2009-12-02 Rope for elevators, and elevator device Active CN102666344B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/070233 WO2011067839A1 (en) 2009-12-02 2009-12-02 Rope for elevators, and elevator device

Publications (2)

Publication Number Publication Date
CN102666344A true CN102666344A (en) 2012-09-12
CN102666344B CN102666344B (en) 2014-11-05

Family

ID=44114704

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200980162684.2A Active CN102666344B (en) 2009-12-02 2009-12-02 Rope for elevators, and elevator device

Country Status (5)

Country Link
EP (1) EP2508459B1 (en)
JP (1) JP5295386B2 (en)
KR (1) KR101329386B1 (en)
CN (1) CN102666344B (en)
WO (1) WO2011067839A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103079982A (en) * 2010-09-09 2013-05-01 三菱电机株式会社 Rope for elevator
CN109562914A (en) * 2016-07-19 2019-04-02 贝卡尔特先进帘线阿尔特公司 Elevator tensile member with rigid thermoplastic polyurethane elastic body jacket

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017191879A (en) * 2016-04-14 2017-10-19 株式会社小糸製作所 Light emitting module

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3048540B2 (en) * 1997-07-29 2000-06-05 信越ポリマー株式会社 Tying strap
DE19858732A1 (en) * 1998-12-18 2000-06-21 Bayer Ag Aqueous, two-component polyurethane coating material for various substrates contains, as binder, polyisocyanate in aqueous solution or dispersion of graft copolymer with elastomeric and thermoplastic polyol components
JP3724322B2 (en) 2000-03-15 2005-12-07 株式会社日立製作所 Wire rope and elevator using it
US20050208286A1 (en) * 2000-09-21 2005-09-22 Hartmann Mark H Polymeric composites having enhanced reversible thermal properties and methods of forming thereof
US20030024770A1 (en) 2001-08-03 2003-02-06 O'donnell Hugh James Elevator belt assembly with waxless coating
JP2003048937A (en) * 2001-08-06 2003-02-21 Toyo Tire & Rubber Co Ltd Cushioning structure and method for producing the same
JP4096879B2 (en) 2001-09-12 2008-06-04 株式会社日立製作所 Elevator rope
DE10197157B4 (en) 2001-12-12 2008-02-21 Mitsubishi Denki K.K. Elevator rope and elevator device
MXPA04007358A (en) 2002-01-30 2005-06-08 Thyssen Elevator Capital Corp Synthetic fiber rope for an elevator.
DE60235205D1 (en) 2002-06-27 2010-03-11 Mitsubishi Electric Corp ROPE FOR LIFT AND METHOD FOR MAKING THE ROPE
JP3756878B2 (en) * 2002-12-18 2006-03-15 東京製綱株式会社 Covered wire rope
JP4374293B2 (en) * 2004-07-15 2009-12-02 株式会社日立製作所 Wire rope and wire rope deterioration detection method
US7772322B2 (en) * 2005-02-17 2010-08-10 Sabic Innovative Plastics Ip B.V. Poly(arylene ether) composition and articles
CN1936137A (en) * 2006-08-18 2007-03-28 上海兰度科技有限公司 Nano fiber coated linear composite material and its preparing method
JP5281883B2 (en) * 2008-03-07 2013-09-04 株式会社日立製作所 Elevator rope and elevator belt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103079982A (en) * 2010-09-09 2013-05-01 三菱电机株式会社 Rope for elevator
CN109562914A (en) * 2016-07-19 2019-04-02 贝卡尔特先进帘线阿尔特公司 Elevator tensile member with rigid thermoplastic polyurethane elastic body jacket
CN109562914B (en) * 2016-07-19 2021-06-15 贝卡尔特先进帘线阿尔特公司 Elevator tension member with rigid thermoplastic polyurethane elastomer jacket

Also Published As

Publication number Publication date
EP2508459A4 (en) 2014-12-17
JP5295386B2 (en) 2013-09-18
KR101329386B1 (en) 2013-11-14
JPWO2011067839A1 (en) 2013-04-18
CN102666344B (en) 2014-11-05
WO2011067839A1 (en) 2011-06-09
EP2508459A1 (en) 2012-10-10
EP2508459B1 (en) 2015-09-30
KR20120088812A (en) 2012-08-08

Similar Documents

Publication Publication Date Title
US8402731B2 (en) Elevator rope
CN101058629B (en) Foaming polyurethanes elastomer, manufacturing method thereof and pallet for railway
CN109562914B (en) Elevator tension member with rigid thermoplastic polyurethane elastomer jacket
TWI649468B (en) Bicomponent spandex with reduced friction
CN102666344B (en) Rope for elevators, and elevator device
CN102906000B (en) Rope for elevator
JP3020022B2 (en) Microcellular polyurethane elastomer and method for producing the same
JP4031330B2 (en) Silicone-modified thermoplastic polyurethane for golf ball cover material and golf ball cover molding composition
CN103079982B (en) Rope for elevator
JP5832727B2 (en) Manufacturing method of elevator rope
JP5436190B2 (en) Elevator rope
WO2013145130A1 (en) Elevator rope and elevator apparatus
JP2003201326A (en) Polyurethane resin composition, method for manufacturing the same and driving belt
JP4212750B2 (en) Method for producing aramid fiber cord for bonding polyurethane resin
RU2159256C2 (en) Polyurethane composition for preparing low-module elastomers
RU2165944C2 (en) Rubber crumb-filled polyurethane composition for preparing low-module oil benzo-resistant elastomers
JP2003294086A (en) Drive belt
US20220220247A1 (en) Composition Comprising Silylated Polymer
JP2009127154A (en) Composite monofilament and method for producing the same

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant