WO2015158103A1 - 一种输送带用钢丝绳 - Google Patents

一种输送带用钢丝绳 Download PDF

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Publication number
WO2015158103A1
WO2015158103A1 PCT/CN2014/086205 CN2014086205W WO2015158103A1 WO 2015158103 A1 WO2015158103 A1 WO 2015158103A1 CN 2014086205 W CN2014086205 W CN 2014086205W WO 2015158103 A1 WO2015158103 A1 WO 2015158103A1
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WIPO (PCT)
Prior art keywords
steel wire
wire
strand
steel
conveyor belt
Prior art date
Application number
PCT/CN2014/086205
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English (en)
French (fr)
Inventor
刘礼华
张春雷
刘红芳
邵永清
张亚维
徐凯
陆毅
Original Assignee
江苏法尔胜技术开发中心有限公司
江苏法尔胜特钢制品有限公司
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Application filed by 江苏法尔胜技术开发中心有限公司, 江苏法尔胜特钢制品有限公司 filed Critical 江苏法尔胜技术开发中心有限公司
Priority to EP14889460.3A priority Critical patent/EP3133205B1/en
Priority to RS20211473A priority patent/RS62631B1/sr
Priority to US15/302,140 priority patent/US10428456B2/en
Priority to JP2017503043A priority patent/JP6307204B2/ja
Priority to RU2016142676A priority patent/RU2665900C2/ru
Priority to AU2014390836A priority patent/AU2014390836B2/en
Priority to CA2946443A priority patent/CA2946443C/en
Publication of WO2015158103A1 publication Critical patent/WO2015158103A1/zh
Priority to ZA2016/07009A priority patent/ZA201607009B/en

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    • 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
    • D07B1/0686—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration characterised by the core design
    • 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
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the 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
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/08—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core the layers of which are formed of profiled interlocking wires, i.e. the strands forming concentric layers
    • D07B1/10—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core the layers of which are formed of profiled interlocking wires, i.e. the strands forming concentric layers with a core of wires arranged parallel to the centre line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/104—Rope or cable structures twisted
    • D07B2201/1052—Rope or cable structures twisted using lang lay, i.e. the wires or filaments being inclined relative to the rope axis
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/104—Rope or cable structures twisted
    • D07B2201/1064—Rope or cable structures twisted characterised by lay direction of the strand compared to the lay direction of the wires in the strand
    • D07B2201/1068—Rope or cable structures twisted characterised by lay direction of the strand compared to the lay direction of the wires in the strand having the same lay direction
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/10—Rope or cable structures
    • D07B2201/104—Rope or cable structures twisted
    • D07B2201/1072—Compact winding, i.e. S/S or Z/Z
    • 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
    • D07B2201/2001—Wires or filaments
    • D07B2201/2006—Wires or filaments characterised by a value or range of the dimension given
    • 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
    • D07B2201/2015—Strands
    • D07B2201/202—Strands characterised by a value or range of the dimension given
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2051—Cores characterised by a value or range of the dimension given
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • 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
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2059—Cores characterised by their structure comprising wires
    • D07B2201/2061—Cores characterised by their structure comprising wires resulting in a twisted structure
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/3025—Steel
    • D07B2205/3046—Steel characterised by the carbon content
    • D07B2205/3057—Steel characterised by the carbon content having a high carbon content, e.g. greater than 0,8 percent respectively SHT or UHT wires
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/3071—Zinc (Zn)
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/20—Type of machine
    • D07B2207/209—Tubular strander
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2207/00—Rope or cable making machines
    • D07B2207/40—Machine components
    • D07B2207/404—Heat treating devices; Corresponding methods
    • D07B2207/4045—Heat treating devices; Corresponding methods to change the crystal structure of the load bearing material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/2065—Reducing wear
    • D07B2401/207—Reducing wear internally
    • 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
    • D07B2501/2076—Power transmissions
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B3/00—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
    • D07B3/02—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position
    • D07B3/04—General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material in which the supply reels rotate about the axis of the rope or cable or in which a guide member rotates about the axis of the rope or cable to guide the component strands away from the supply reels in fixed position and are arranged in tandem along the axis of the machine, e.g. tubular or high-speed type stranding machine

Definitions

  • the invention relates to a steel wire rope, in particular to a steel wire rope for a conveyor belt.
  • conveyor belts in which the steel cord conveyor belt is reinforced with steel wire ropes, and its carrying capacity is greatly improved, so that it can be used for high speed, large traffic volume and long distance transportation belts.
  • the steel cord conveyor belt is widely used at home and abroad.
  • the current steel wire rope for conveyor belt includes a core steel wire strand and an outer steel wire strand, the outer steel wire strand is spirally twisted on the outer side of the core steel wire strand, and each of the core steel wire strand and the outer steel wire strand includes M core portions respectively.
  • the existing steel wire rope for the conveyor belt first makes the core wire strand of the core steel wire strand and the N outer steel wire, and then the M core wire of the outer steel wire strand and N external steel wires are made of outer steel wire strands, and finally a plurality of outer steel wire strands are spirally twisted.
  • the outer side of the core wire strands is the steel wire rope for the finished conveyor belt, and the steel wire rope core wire strands of the conveyor belt are in point contact with the outer steel wire strands.
  • the structure of the conveyor belt wire rope is generally 6 ⁇ 7+IWS, 6 ⁇ 19+IWS and 6 ⁇ 19W+IWS, etc.
  • the production structure is a combination of multiple wire strands of m*n; the structure “m*n”, ie All steel wire strands have m roots, each steel strand is composed of n steel wires; the size range of steel wire rope for conveyor belt:
  • the object of the present invention is to provide a steel wire rope for a conveyor belt, which can improve the breaking tension of the whole rope of the steel wire without changing the size of the steel wire, without increasing the production cost and maintenance cost. Thereby increasing the carrying capacity of the conveyor belt.
  • the technical content adopted by the present invention is: a steel wire rope for a conveyor belt, which comprises a central steel wire, a steel wire layer surrounding the central steel wire and a plurality of outer steel wire strands; the outer steel wire strand includes a core portion Steel wire and N external steel wires; the central steel wire, the steel wire layer of the outer winding center steel wire and the several outer steel wire strands are made into a wire contact wire rope by one twisting, the steel wire layer is wound outside the center steel wire, and the outer steel wire strand is wrapped around the outer side of the steel wire layer
  • the outer steel wire strand and the steel wire layer are in line contact;
  • the carbon content of all steel wires is not
  • the center of the wire diameter d 0 of the wire, the outer wire diameter around the central wire wire layer is d. 1, the outer diameter d of the wire strands outer strands.
  • the ratio of d 0 /d 1 is not less than 1.05
  • the ratio of d outer strand /d 1 is not less than 1.8.
  • the diameters of the core wire and the outer wire in the outer wire strand are d strand 1 and d strand 2 , respectively, wherein the ratio of d strand 1 /d strand 2 is not less than 1.03.
  • the diameter of the center steel wire is d 0
  • the diameter of the steel wire in the wire layer and the outer wire strand are the same as d 1
  • the diameter of the outer steel wire strand is d outer strand
  • the central steel wire, the steel wire layer of the outer winding center wire, and the plurality of outer steel wire strands are made externally by one twist.
  • the breaking tension of the whole rope can be increased by 1 to 3%; at the same time, the elongation of the whole rope is decreased, and the elongation can be reduced by 0.2 to 0.5 with respect to the steel wire rope formed by the original structure three times. %.
  • the invention Compared with the prior art, the invention has the advantages that the invention increases the breaking tensile force of the steel wire rope for the conveyor belt without changing the size and strength level of the steel wire rope; the invention reduces the steel wire rope in the case of the same wire rope size. Elongation; the invention reduces the strength loss of a part of the steel wire in the tanning process, mainly for the core wire.
  • Figure 1 is a schematic view showing the structure of a conventional steel wire rope 6*7+1*7.
  • FIG. 2 is a schematic view showing the structure of a 6*7+6+1 steel wire layer which is entirely a steel wire in the present invention.
  • Fig. 3 is a schematic view showing the structure of a 6*7+6+1 composed of three steel wires and three outer steel wire strands in the steel wire layer of the present invention.
  • Fig. 4 is a schematic view showing the cross section of the wire rope for the conventional conveyor belt and the point contact in the rope.
  • Fig. 5 is a partially enlarged view showing a cross section of a wire rope for a conventional conveyor belt and point contact in the rope.
  • Figure 6 is a schematic view showing the cross section of the present invention and the inner wire contact of the wire rope.
  • Figure 7 is a partial enlarged view of the cross section of the present invention and the inner wire contact of the wire rope.
  • Figure 8 is a schematic view of the cross section of the present invention and the inner wire contact of the wire rope (reverse hinge).
  • the existing steel wire rope for a conveyor belt includes a core steel wire strand 1 and an outer steel wire strand 2, and the outer steel wire strand 2 is spirally twisted on the outer side of the core steel wire strand 1. It is a 6*7+1*7 structure, and the core steel wire strand 1 is in point contact with the outer steel wire strand 2.
  • Embodiment 1 The novel steel wire rope structure for the conveyor belt of the present invention is 1+m+m*n, m is 5-8 single steel wires or a combination of 5-8 steel wires and outer wound steel wire strands, if M is used
  • the steel wire rope for the conveyor belt of the present embodiment includes a center steel wire 3, a steel wire layer 4 which surrounds the center steel wire, and six outer steel wire strands 5;
  • the outer steel wire strand 5 includes a core wire 5.1 and six outer wires 5.2;
  • a central wire 3 a wire layer 4 of the outer center wire and a six outer wire strand 5 are formed into a conveyor belt wire by one twist, and the wire layer 4 is wound around the center wire 3
  • the outer steel wire strand 5 is wrapped around the outer side of the steel wire layer 4, and the outer steel wire strand 5 is in line contact with the steel wire layer 4;
  • the outer steel wire 4 of the central steel wire 3 is six steel wires 4.1, and the diameter d 0 of the central steel wire 3 is 0.56 mm.
  • steel wires of the layer 4 is 4.1 0.51mm diameter d 1
  • the outer diameter d of the steel wire strands outer strands 5 is 1.22mm
  • the steel wire rope for a conveyor belt of the present embodiment includes a center steel wire 3, a steel wire layer 4 for winding the center steel wire, and six external steel wire strands 5;
  • the steel wire strand 5 comprises a core steel wire 5.1 and six outer steel wires 5.2;
  • the central steel wire 3, the outer steel wire 4 and the outer steel wire strand 5 are made into a steel wire rope for the conveyor belt, and the steel wire layer 4 is wound around the steel wire.
  • the outer steel wire strand 5 is wrapped around the outer side of the steel wire layer 4, the outer steel wire strand 5 and the steel wire layer 4 are in line contact; the outer steel wire 4 of the central steel wire 3 is composed of three steel wires 4.1 and three outer steel wire strands 4.2.
  • the wire contact structure of the wire strands is formed by the process design and the production equipment.
  • the filling area of the core wire can be increased by 8-10%.
  • the breaking tension of the whole rope can be increased by 10-15%.
  • the core steel wire and the outer steel wire strand are formed at one time, for the core steel wire, the one-time twisting is reduced, and the strength loss of the steel wire is reduced, which also brings about an increase in the breaking tension of the whole rope, and from the viewpoint of the reduction of the tanning loss, Can increase 1-3% of the whole The rope breaks the tension.
  • the core wire is only deformed once, resulting in a decrease in the elongation of the whole rope, the elongation can be reduced by 0.2-0.5% relative to the wire rope formed by the original structure three times.
  • Example 3 Wire ropes are taken as an example. They are produced according to the general steel wire rope structure of the conveyor belt and the steel wire rope structure according to the new conveyor belt, and the breaking tension of the wire ropes of different structures is compared.
  • the raw material is selected, the wire component content is 0.70-1.00% carbon, 0.30-0.90% manganese, 0.15-0.50% silicon, the maximum 0.03% sulfur, the maximum 0.03% phosphorus, and the component percentage is weight percentage.
  • the strip is pickled and phosphatized, the wire is subjected to concentrated pickling, rinsed and dried, and weakly phosphatized to remove impurities and oxides on the surface of the wire.
  • the large diameter is drawn, and the wire is drawn for the first time on a straight-through wire drawing machine, and the diameter is about 2.0-3.0 mm.
  • the intermediate heat treatment eliminates the first work hardening and heat treatment for the next drawing.
  • Hot-dip galvanizing the heat-treated semi-finished steel wire is hot-dip galvanized, so that the semi-finished steel wire has a uniform layer of light and has a certain thickness of zinc layer.
  • the water tank is drawn, and the semi-finished steel wire is finally drawn into a rope-making steel wire, and the final diameter of the steel wire is 0.10 mm-0.80 mm.
  • the semi-finished product is made of tantalum, and the steel wire is twisted into a steel wire strand on the pipe winch for the outer steel wire strand of the steel wire rope;
  • the finished product is tanning.
  • the central steel wire, the outer steel wire layer and the outer steel wire strand are formed at one time to form a wire contact wire rope, in which the outer wire strand is twisted.
  • the wire rope illustrated in Figure 8 is the opposite direction of the outer steel wire strands from the finished product]; the final formed lay length is the same as the outer diameter of the outer steel wire, and the outer wire strands are spaced apart. constant.
  • the wire ropes of different structures, the product properties and the wire diameter ratio change are as follows.
  • Invention structure 1 Invention structure 2 Original structure Wire rope diameter mm 3.65-3.70 3.65-3.70 3.65-3.70 Broken pull Kn 17.16-18.25 16.89-17.58 14.41-15.60 Outer strand diameter mm 1.22 1.22 1.22 Core area mm 2 1.471 1.303 1.108 Elongation% 1.98-2.07 1.99-2.10 2.10-2.25

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  • Ropes Or Cables (AREA)
  • Coating With Molten Metal (AREA)

Abstract

一种输送带用钢丝绳，它包括一根中心钢丝（3）、外绕中心钢丝的钢丝层（4）和若干股外部钢丝股（5）；外部钢丝股包括一根芯部钢丝（5.1）和N根外部钢丝（5.2）；中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股通过一次捻制成输送带用钢丝绳，钢丝层外绕在中心钢丝外侧，外部钢丝股包绕在钢丝层外侧，外部钢丝股与钢丝层为线接触；外绕中心钢丝的钢丝层为M根钢丝或由M根钢丝与M'股外绕钢丝股组成，在钢丝层由M根钢丝与M'股外绕钢丝股组成时，M':M=0.25:1∼1:1，每股外绕钢丝股的钢丝根数为2∼12根。

Description

一种输送带用钢丝绳 技术领域
本发明涉及一种钢丝绳，尤其涉及一种输送带用钢丝绳。
背景技术
随着国内矿山、码头的大量建设，高效节能、无污染的输送带运输取代了原来的短距离汽车运输。这种运输方式的关键部件和主要设备消耗品是输送带，其中钢丝绳芯输送带采用钢丝绳来补强，其承载能力大为提高，从而可供高速度、大运输量、长距离的运输带使用，国内外都在广泛推广应用钢丝绳芯输送带。
随着钢丝绳芯输送带的大量使用，客户对于输送带的承载能力不断要求提高，并且要求在不改变钢丝绳尺寸，不增加使用生产成本和维护成本的前提下，通过提高钢丝绳的整绳破断拉力，进一步提高输送带的承载能力。目前的输送带用钢丝绳包括芯部钢丝股和外部钢丝股，所述外部钢丝股螺旋扭绞在所述芯部钢丝股的外侧，每根芯部钢丝股和外部钢丝股分别包括M根芯部钢丝和N根外部钢丝，现有的输送带用钢丝绳先将芯部钢丝股的M根芯部钢丝和N根外部钢丝制成芯部钢丝股，再由外部钢丝股的M根芯部钢丝和N根外部钢丝制成外部钢丝股，最后将若干外部钢丝股螺旋扭绞一芯部钢丝股外侧即为成品输送带用钢丝绳，该输送带用钢丝绳中芯部钢丝股与外部钢丝股是点接触；输送带钢丝绳的结构一般为6×7+IWS，6×19+IWS和6×19W+IWS等，其生产结构都是m*n的多根钢丝股组合；结构“m*n”，即所有钢丝股有m根，每根钢丝股是由n个钢丝组成；输送带用钢丝绳的尺寸范围：
Figure PCTCN2014086205-appb-000001
发明内容
针对现有技术中存在的不足，本发明的目的在于提供一种输送带用钢丝绳，其在不改变钢丝绳尺寸、不增加使用生产成本和维护成本的前提下，能提高钢丝绳的整绳破断拉力，从而提高输送带的承载能力。
为达到上述发明目的，本发明采用的技术内容为：一种输送带用钢丝绳，它包括一根中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股；外部钢丝股包括一根芯部钢丝和N根外部钢丝；中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股通过一次捻制成线接触钢丝绳，钢丝层外绕在中心钢丝外侧，外部钢丝股包绕在钢丝层外侧，外部钢丝股与钢丝层为线接触；外绕中心钢丝的钢丝层由M根钢丝或由M根钢丝与M′股外绕钢丝股组成，每股外绕钢丝股的钢丝根数为2～12根，在钢丝层由M根钢丝与M′股外绕钢丝股组成时，M′： M＝0.25：1～1：1。所有钢丝的碳含量不小于0.7％；每股外部钢丝股的钢丝根数为5～12根。
在上述输送带用钢丝绳中，中心钢丝的钢丝直径为d0，外绕中心钢丝的钢丝层的钢丝直径为d1，外部钢丝股的直径为d外股。其中d0/d1的比值不小于1.05，d外股/d1的比值不小于1.8。外部钢丝股中的芯部钢丝和外部钢丝的直径分别为d股1和d股2，其中d股1/d股2的比值不小于1.03。
在上述输送带用钢丝绳中，其进一步特征在于，中心钢丝的直径为d0，钢丝层中的钢丝与外绕钢丝股的直径相同为d1，外部钢丝股的直径为d外股，外部钢丝股中的芯部钢丝和外部钢丝的直径分别为d外股1与d外股2，d0：d1＝1.05：1～1.2：1；d外股：d1＝1.8：1～5.0：1；d外 股1：d外股2＝1.03：1～1.5：1。
在本发明中在钢丝绳直径不变的情况下，外部钢丝股直径和根数也不变的情况下，使中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股通过一次捻制成外部钢丝股与钢丝层为线接触的输送带用钢丝绳；由此对于整个钢丝绳来说，除外部钢丝股外，芯部钢丝的填充面积可以提升8～10％，在相同钢丝强度级别的情况下，整绳破断拉力可以提升10～15％。
由于中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股通过一次捻制成输送带用钢丝绳，减少了一次捻制，钢丝的强度损失下降，同样也会带来整绳破断拉力的提高，从捻制损失下降来看，可以提升1～3％的整绳破断拉力；同时整绳在伸长率方面有所下降，相对于原结构三次成型的钢丝绳，伸长率可以下降0.2～0.5％。
本发明与现有技术相比所具有优点是：本发明是在不改变钢丝绳尺寸和强度级别的前提下，增加输送带用钢丝绳的破断拉力；本发明是在同等钢丝绳尺寸的情况下，降低钢丝绳的伸长率；本发明降低了钢丝绳中部分钢丝在捻制过程中的强度损失，主要针对芯部钢丝。
附图说明
图1为现有输送带用钢丝绳6*7+1*7结构示意图。
图2为本发明中钢丝层全为钢丝的6*7+6+1结构示意图。
图3为本发明中钢丝层由3根钢丝与3股外绕钢丝股组成的6*7+6+1结构示意图。
图4为现有输送带用钢丝绳横断面以及绳内点接触示意图。
图5为现有输送带用钢丝绳横断面以及绳内点接触局部放大图。
图6为本发明横断面以及钢丝绳内线接触示意图。
图7为本发明横断面以及钢丝绳内线接触局部放大图。
图8为本发明横断面以及钢丝绳内线接触示意图(反铰)。
具体实施方式
以下结合附图和具体实施例对本发明作进一步详细说明。
如图1、图4、图5所示，现有输送带用钢丝绳，包括芯部钢丝股1和外部钢丝股2，所述外部钢丝股2螺旋扭绞在所述芯部钢丝股1的外侧，其为6*7+1*7结构，芯部钢丝股1与外部钢丝股2是点接触。
实施例1：本发明的新型的输送带用钢丝绳结构为1+m+m*n，m为5-8根单根钢丝或者5-8根钢丝和外绕钢丝股的组合，如果采用M根钢丝和M′股外绕钢丝股的组合，M:M′＝4：1～1：1；n为5-12根钢丝组成的外部钢丝股。新型输送带用钢丝绳的尺寸范围：
Figure PCTCN2014086205-appb-000002
如图2、图6、图7所示，本实施例的输送带用钢丝绳，它包括一根中心钢丝3、外绕中心钢丝的钢丝层4和六股外部钢丝股5；外部钢丝股5包括一根芯部钢丝5.1和六根外部钢丝5.2；中心钢丝3、外绕中心钢丝的钢丝层4和六股外部钢丝股5通过一次捻制成输送带用钢丝绳，钢丝层4外绕在中心钢丝3外侧，外部钢丝股5包绕在钢丝层4外侧，外部钢丝股5与钢丝层4为线接触；外绕中心钢丝3的钢丝层4为六根钢丝4.1，中心钢丝3的直径d0为0.56mm，钢丝层4中的钢丝4.1直径d1为0.51mm，外部钢丝股5的直径d外股为1.22mm，外部钢丝股5中的芯部钢丝5.1和外部钢丝5.2的直径分别为d外股1＝0.44mm与d外股2＝0.39mm。
实施例2：如图3、图6、图7所示，本实施例的输送带用钢丝绳，它包括一根中心钢丝3、外绕中心钢丝的钢丝层4和六股外部钢丝股5；外部钢丝股5包括一根芯部钢丝5.1和六根外部钢丝5.2；中心钢丝3、外绕中心钢丝的钢丝层4和六股外部钢丝股5通过一次捻制成输送带用钢丝绳，钢丝层4外绕在中心钢丝3外侧，外部钢丝股5包绕在钢丝层4外侧，外部钢丝股5与钢丝层4为线接触；外绕中心钢丝3的钢丝层4由三根钢丝4.1与三股外绕钢丝股4.2组成，每股外绕钢丝股4.2的钢丝根数为3根，中心钢丝3的直径d0为0.56mm，钢丝层4中的钢丝4.1与钢丝股4.2的直径相同d1为0.51mm，外部钢丝股的直径d外股为1.22mm，外部钢丝股中的芯部钢丝和外部钢丝的直径分别为d外股1＝0.44mm与d外股2＝0.39mm。
在钢丝绳直径不变的情况下，外部钢丝股直径和根数也不变的情况下，通过工艺设计和生产装备实现丝股一次成型的线接触结构。
对于整个钢丝绳来说，除外部钢丝股外，芯部钢丝的填充面积可以提升8-10％，在相同钢丝强度级别的情况下，整绳破断拉力可以提升10-15％。
由于芯部钢丝和外部钢丝股一次成型，对于芯部钢丝来说，减少了一次捻制，钢丝的强度损失下降，同样也会带来整绳破断拉力的提高，从捻制损失下降来看，可以提升1-3％的整 绳破断拉力。
由于芯部钢丝只有一次变形，从而造成整绳在伸长率方面有所下降，相对于原结构三次成型的钢丝绳，伸长率可以下降0.2-0.5％。
实施例3：以
Figure PCTCN2014086205-appb-000003
钢丝绳为实例，按照一般输送带用钢丝绳结构生产和按照新型输送带用钢丝绳结构生产，对比不同结构钢丝绳的破断拉力。
原料选择，线材成份含量为0.70-1.00％的碳，0.30-0.90％的锰，0.15-0.50％的硅，最大0.03％的硫，最大0.03％的磷，成份百分比为重量百分比。
盘条的酸洗磷化，将线材进行集中酸洗并漂洗干燥，弱磷化，除去线材表面的杂质和氧化物。
大直径拉拔，在直进式拉丝机上将线材第一次拉拔，直径大约2.0-3.0mm。
中间热处理，消除第一次的加工硬化，为下一次拉拔做热处理。
热镀锌，将热处理后的半成品钢丝进行热浸镀锌，使得半成品钢丝具有一层均匀光亮，并且具有一定厚度的锌层。
水箱拉拔，将半成品钢丝最终拉拔为制绳钢丝，钢丝的最终直径为0.10mm-0.80mm。
半成品捻制，在管绞车上将制绳钢丝捻制成钢丝股，用于钢丝绳外部钢丝股；
成品捻制，在半成品捻制放线盘两倍的车型上，将中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股一次成型，形成线接触钢丝绳，其中外部钢丝股的捻制方向与成品相同，或者相反【图8示例的钢丝绳即为外部钢丝股的捻制方向与成品相反】；最终形成的成品捻距和外绕中心钢丝的钢丝层捻距一致，外部钢丝股的捻距不变。
就本发明来看，不同结构的钢丝绳，产品性能以及丝径配比变化如下表。
项目 发明结构1 发明结构2 原有结构
钢丝绳直径mm 3.65-3.70 3.65-3.70 3.65-3.70
破断拉力Kn 17.16-18.25 16.89-17.58 14.41-15.60
外层股直径mm 1.22 1.22 1.22
芯部面积mm2 1.471 1.303 1.108
伸长率％ 1.98-2.07 1.99-2.10 2.10-2.25
以上所述仅为本发明之较佳实施例而已，并非以此限制本发明的实施范围，凡熟悉此项技术者，运用本发明的原则及技术特征，所作的各种变更及装饰，皆应涵盖于本权利要求书所界定的保护范畴之内。

Claims (11)

  1. 一种输送带用钢丝绳，其特征在于：它包括一根中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股；所述外部钢丝股包括一根芯部钢丝和N根外部钢丝；所述中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股通过一次捻制成线接触钢丝绳，所述钢丝层外绕在所述中心钢丝外侧，所述外部钢丝股包绕在所述钢丝层外侧，所述外部钢丝股与所述钢丝层为线接触；所述外绕中心钢丝的钢丝层由M根钢丝或由M根钢丝与M′股外绕钢丝股组成。
  2. 根据权利要求1所述的输送带用钢丝绳，其特征在于：在所述外绕中心钢丝的钢丝层由M根钢丝与M′股外绕钢丝股组成时，M′：M＝0.25：1～1：1；每股外绕钢丝股的钢丝根数为2～12根。
  3. 根据权利要求1所述的输送带用钢丝绳，其特征在于：每股外部钢丝股的外部钢丝根数N为5～12根。
  4. 根据权利要求1所述的输送带用钢丝绳，其特征在于：所有钢丝的碳含量不小于0.7％。
  5. 根据权利要求4所述的输送带用钢丝绳，其特征在于：所有钢丝的碳含量为0.70-1.00％。
  6. 根据权利要求1至5之一所述的输送带用钢丝绳，其特征在于：所述中心钢丝的直径为d0，所述外绕中心钢丝的钢丝层的钢丝直径为d1，所述外部钢丝股的直径为d外股，其中d0/d1的比值不小于1.05，d外股/d1的比值不小于1.8。
  7. 根据权利要求6所述的输送带用钢丝绳，其特征在于：所述中心钢丝的直径为d0，所述外绕中心钢丝的钢丝层中的钢丝为d1，所述外部钢丝股的直径为d外股，d0：d1＝1.05：1～1.2：1；d外股：d1＝1.8：1～5.0：1。
  8. 根据权利要求1至5之一所述的输送带用钢丝绳，其特征在于：所述中心钢丝的直径为d0，所述外绕中心钢丝的钢丝层中的钢丝与外绕钢丝股的直径相同为d1，所述外部钢丝股的直径为d外股，d0：d1＝1.05：1～1.2：1；d外股：d1＝1.8：1～5.0：1。
  9. 根据权利要求1至5之一所述的输送带用钢丝绳，其特征在于：所述外部钢丝股中的芯部钢丝直径和外部钢丝直径分别为d外股1和d外股2，其中d外股1/d外股2的比值不小于1.03。
  10. 根据权利要求9所述的输送带用钢丝绳，其特征在于：所述外部钢丝股中的芯部钢丝和外部钢丝的直径分别为d外股1和d外股2，d外股1：d外股2＝1.03：1～1.5：1。
  11. 一种输送带用钢丝绳的生产方法，其特征在于：
    原料选择，线材成份含量为0.70-1.00％的碳，0.30-0.90％的锰，0.15-0.50％的硅，最大0.03％的硫，最大0.03％的磷，成份百分比为重量百分比；
    盘条的酸洗磷化，将线材进行集中酸洗并漂洗干燥，弱磷化，除去线材表面的杂质和氧 化物；
    大直径拉拔，在直进式拉丝机上将线材第一次拉拔；
    中间热处理，消除第一次的加工硬化，为下一次拉拔做热处理；
    热镀锌，将热处理后的半成品钢丝进行热浸镀锌，使得半成品钢丝具有一层均匀光亮，并且具有一定厚度的锌层；
    水箱拉拔，将半成品钢丝最终拉拔为制绳钢丝；
    半成品捻制，在管绞车上将制绳钢丝捻制成钢丝股，用于钢丝绳外部钢丝股；
    成品捻制，在半成品捻制放线盘两倍的车型上，将中心钢丝、外绕中心钢丝的钢丝层和若干股外部钢丝股一次成型，形成线接触钢丝绳，其中外部钢丝股的捻制方向与成品相同，或者相反；最终形成的成品捻距和外绕中心钢丝的钢丝层捻距一致，外部钢丝股的捻距不变。
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