阅读说明：本技术 一种抗疲劳飞机操纵用钢丝绳及其制造方法 (Anti-fatigue steel wire rope for airplane operation and manufacturing method thereof ) 是由 陈勇 贺孝宇 张成宇 张朝武 任艳丽 于 2021-03-17 设计创作，主要内容包括：一种抗疲劳飞机操纵用钢丝绳及其制造方法,钢丝绳由一根金属股芯和六根金属外层股组成；六根金属外层股均匀螺旋缠绕于金属股芯外周；金属股芯和金属外层股均分为三层一次捻制,结构为1X19S,钢丝由内向外结构式为1-9-9,即中心层-内层-外层；钢丝数为19根,股芯中钢丝间呈线接触状态,钢丝表面镀锌；钢丝绳制造方法包括如下步骤：钢丝生产-金属股芯和金属外层股生产-钢丝绳生产-钢丝绳稳定化处理。本发明在满足飞机操纵用钢丝绳高破断拉力、高疲劳寿命使用需求的同时,大幅提高了钢丝绳的破断拉力和疲劳寿命,与普通操纵用钢丝绳相比,其破断拉力提高1.08倍以上,疲劳寿命提高2倍以上。(A steel wire rope for controlling an anti-fatigue airplane and a manufacturing method thereof are disclosed, wherein the steel wire rope consists of a metal strand core and six metal outer strands; six metal outer layer strands are uniformly and spirally wound on the periphery of the metal strand core; the metal strand core and the metal outer strand are uniformly twisted into three layers at one time, the structure is 1X19S, and the structural formula of the steel wire from inside to outside is 1-9-9, namely a central layer, an inner layer and an outer layer; the number of the steel wires is 19, the steel wires in the strand core are in a line contact state, and the surfaces of the steel wires are galvanized; the steel wire rope manufacturing method comprises the following steps: steel wire production-metal strand core and metal outer strand production-steel wire rope stabilization treatment. The invention meets the use requirements of high breaking force and high fatigue life of the steel wire rope for airplane operation, greatly improves the breaking force and the fatigue life of the steel wire rope, and compared with the common steel wire rope for operation, the invention improves the breaking force by more than 1.08 times and improves the fatigue life by more than 2 times.)

1. An anti-fatigue steel wire rope for airplane operation consists of a metal strand core and six metal outer strands; six metal outer layer strands are uniformly and spirally wound on the periphery of the metal strand core;

the method is characterized in that: the metal strand core is divided into three layers which are twisted once, the structure is 1X19S, the structural formula of the steel wire is 1-9-9 from inside to outside, namely a central layer, an inner layer and an outer layer; the number of the steel wires is 19, the steel wires in the strand core are in a line contact state, the surfaces of the steel wires are galvanized, and the weight of a zinc layer is not less than 21g per square meter;

the metal outer layer strand is divided into three layers which are twisted once, the structure is 1X19S, the structural formula of the steel wire is 1-9-9 from inside to outside, namely a central layer, an inner layer and an outer layer; the number of the steel wires is 19, the steel wires in the outer layer strands are in a line contact state, the surfaces of the steel wires are galvanized, and the weight of a zinc layer is not less than 18g per square meter;

the total number of the six metal outer layer strand steel wires is 114;

the nominal diameter of the steel wire rope is 4.0mm, the steel wire rope is formed by twisting 133 galvanized steel wires, and the steel wires are made of 72A or 72E carbon steel.

2. A method of manufacturing a fatigue-resistant steel cord for aircraft maneuvering according to claim 1, characterized by: the method comprises the following implementation steps:

(A) production of steel wire

The diameters of the metal strand core and the metal outer strand steel wires are not more than 0.43mm, the outer layer steel wire strength of the metal strand core and the metal outer strand steel wires is not lower than 1960MPa, the inner layer steel wire strength is not lower than 2060MPa, and the diameter ratio of the outer layer steel wires to the inner layer steel wires is 1.5-1.7;

the metal strand core and the metal outer strand are drawn by using steel wires by an LT160.1-19/165 turnover type water tank wire drawing machine, the total drawing compression rate of the steel wires except the steel wire of the central layer is 88.6-96.1%, and the average partial compression rate is 15.6-16.7%;

the steel wire contains 0.73% of C, 0.005-0.008% of S, less than or equal to 0.025% of P, 0.21-0.29% of Si and 0.5-0.55% of Mn;

(B) metal strand core and metal outer strand production

The metal strand core is formed by one-time twisting through a tubular stranding machine according to an arrangement mode that steel wires are 1-9-9 mm from inside to outside, and the twisting distance is 12 mm; the metal outer layer strand is formed by one-time twisting through a tubular strander according to an arrangement mode that steel wires are 1-9-9 mm from inside to outside, and the twisting distance is 10.6 mm; the metal strand core and the metal outer layer strand are produced by adopting 18I-shaped wheels with the phi of 150mm for loading steel wires;

(C) production of steel wire rope

The steel wire rope is formed by one-time twisting through a tubular rope twisting machine, the twisting distance is 26.3mm, and 6I-shaped wheels with the phi of 300mm are used for mounting metal outer layer strands for production;

(D) wire rope stabilization treatment

After the steel wire rope is twisted, a two-section type intermediate frequency induction tempering device is adopted for tempering and stabilizing treatment, the treatment temperature is 180 ℃, and the treatment speed is 26 m/min.

Technical Field

The invention relates to an anti-fatigue steel wire rope for airplane operation and a manufacturing method thereof, belonging to the technical field of metal product processing.

Background

The existing steel wire rope for airplane operation is mainly a point contact galvanized steel wire rope, an inner layer steel wire and an outer layer steel wire of a strand used for twisting the steel wire rope are in the same tensile strength level, the diameters of the inner layer steel wire and the outer layer steel wire are the same, and the steel wire rope has small breaking tension and poor wear resistance and fatigue resistance. If the strength of the inner and outer steel wires is simply improved, a breaking tension test is not carried out on the product before the product is actually used, the breaking tension can be improved, but the strength of the steel wires is improved, the fatigue performance of the steel wires tends to be reduced, and in addition, the contact form among the steel wires is point contact, so that the bending stress of the steel wire rope is large when the steel wire rope is used, the fatigue performance of the steel wire rope is reduced, and the requirement of the steel wire rope for airplane operation on high fatigue performance cannot be completely met.

Disclosure of Invention

The invention aims to solve the technical problems of small breaking tension and poor wear resistance and fatigue resistance of the existing steel wire rope for point contact galvanized aircraft control.

An anti-fatigue steel wire rope for airplane operation consists of a metal strand core and six metal outer strands; six metal outer layer strands are uniformly and spirally wound on the periphery of the metal strand core;

the metal strand core is divided into three layers which are twisted once, the structure is 1X19S, the structural formula of the steel wire is 1-9-9 from inside to outside, namely a central layer, an inner layer and an outer layer; the number of the steel wires is 19, the steel wires in the strand core are in a line contact state, the surfaces of the steel wires are galvanized, and the weight of a zinc layer is not less than 21g per square meter;

the metal outer layer strand is divided into three layers which are twisted once, the structure is 1X19S, the structural formula of the steel wire is 1-9-9 from inside to outside, namely a central layer, an inner layer and an outer layer; the number of the steel wires is 19, the steel wires in the outer layer strands are in a line contact state, the surfaces of the steel wires are galvanized, and the weight of a zinc layer is not less than 18g per square meter;

the total number of the six metal outer layer strand steel wires is 114;

the nominal diameter of the steel wire rope is 4.0mm, the steel wire rope is formed by twisting 133 galvanized steel wires, and the steel wires are made of 72A or 72E carbon steel.

A method for manufacturing a fatigue-resistant steel wire rope for airplane operation comprises the following implementation steps:

(A) production of steel wire

The diameters of the metal strand core and the metal outer strand steel wires are not more than 0.43mm, the outer layer steel wire strength of the metal strand core and the metal outer strand steel wires is not lower than 1960MPa, the inner layer steel wire strength is not lower than 2060MPa, and the diameter ratio of the outer layer steel wires to the inner layer steel wires is 1.5-1.7;

the metal strand core and the metal outer strand are drawn by using steel wires by an LT160.1-19/165 turnover type water tank wire drawing machine, the total drawing compression rate of the steel wires except the steel wire of the central layer is 88.6-96.1%, and the average partial compression rate is 15.6-16.7%;

the steel wire contains 0.73% of C, 0.005-0.008% of S, less than or equal to 0.025% of P, 0.21-0.29% of Si and 0.5-0.55% of Mn;

(B) metal strand core and metal outer strand production

The metal strand core is formed by one-time twisting through a tubular stranding machine according to an arrangement mode that steel wires are 1-9-9 mm from inside to outside, and the twisting distance is 12 mm; the metal outer layer strand is formed by one-time twisting through a tubular strander according to an arrangement mode that steel wires are 1-9-9 mm from inside to outside, and the twisting distance is 10.6 mm; the metal strand core and the metal outer layer strand are produced by adopting 18I-shaped wheels with the phi of 150mm for loading steel wires;

(C) production of steel wire rope

The steel wire rope is formed by one-time twisting through a tubular rope twisting machine, the twisting distance is 26.3mm, and 6I-shaped wheels with the phi of 300mm are used for mounting metal outer layer strands for production;

(D) wire rope stabilization treatment

After the steel wire rope is twisted, a two-section type intermediate frequency induction tempering device is adopted for tempering and stabilizing treatment, the treatment temperature is 180 ℃, and the treatment speed is 26 m/min.

Adopt above-mentioned technical scheme's beneficial effect:

the invention meets the use requirements of high breaking force and high fatigue life of the steel wire rope for airplane operation, greatly improves the breaking force and the fatigue life of the steel wire rope, and compared with the common steel wire rope for operation, the invention improves the breaking force by more than 1.08 times and improves the fatigue life by more than 2 times.

Drawings

Fig. 1 is a schematic cross-sectional structure view of a fatigue-resistant aircraft-handling steel wire rope according to the present invention.

In the figure: 1-metal strand core, 2-metal outer strand.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below to fully understand the objects, features and effects of the present invention.

As shown in fig. 1, the fatigue-resistant steel wire rope for airplane operation consists of a metal strand core 1 and six metal outer strands 2; six metal outer layer strands 2 are uniformly and spirally wound on the periphery of the metal strand core 1;

the metal strand core 1 is divided into three layers which are twisted once, the structure is 1X19S, the structural formula of the steel wire is 1-9-9 from inside to outside, namely a central layer, an inner layer and an outer layer; the number of the steel wires is 19, the steel wires in the strand core are in a line contact state, the surfaces of the steel wires are galvanized, and the weight of a zinc layer is not less than 21g per square meter;

the metal outer layer strand 2 is divided into three layers which are twisted once, the structure is 1X19S, the structural formula of the steel wire is 1-9-9 from inside to outside, namely a central layer, an inner layer and an outer layer; the number of the steel wires is 19, the steel wires in the outer layer strands are in a line contact state, the surfaces of the steel wires are galvanized, and the weight of a zinc layer is not less than 18 g/square meter.

The total number of the six metal outer strand steel wires is 114.

The nominal diameter of the steel wire rope is 4.0mm, the steel wire rope is formed by twisting 133 galvanized steel wires, and the steel wires are made of 72A or 72E carbon steel.

A method for manufacturing a fatigue-resistant steel wire rope for airplane operation comprises the following implementation steps:

(A) production of steel wire

The diameters of the steel wires for the metal strand core 1 and the metal outer strand 2 are not more than 0.43mm, the outer-layer steel wire strength of the metal strand core 1 and the metal outer strand 2 is not lower than 1960MPa, the inner-layer steel wire strength is not lower than 2060MPa, and the diameter ratio of the outer-layer steel wire to the inner-layer steel wire is 1.5-1.7;

the metal strand core 1 and the metal outer layer strand 2 are drawn by steel wires by using an LT160.1-19/165 turnover water tank wire drawing machine, the total drawing compression rate of the steel wires except the steel wire of the central layer is 88.6-96.1%, and the average partial compression rate is 15.6-16.7%;

the steel wire contains 0.73% of C, 0.005-0.008% of S, less than or equal to 0.025% of P, 0.21-0.29% of Si and 0.5-0.55% of Mn;

(B) production of a metal strand core 1 and a metal outer strand 2

The metal strand core 1 is formed by one-time twisting through a tubular stranding machine according to an arrangement mode that steel wires are 1-9-9 from inside to outside, and the twisting distance is 12 mm; the metal outer layer strand 2 is formed by twisting the steel wires in an arrangement mode of 1-9-9 from inside to outside at one time through a tubular strander, and the lay length is 10.6 mm; the metal strand core 1 and the metal outer layer strand 2 are produced by adopting 18I-shaped wheels with phi 150mm for steel wire loading;

(C) production of steel wire rope

The steel wire rope is formed by one-time twisting through a tubular rope twisting machine, the twisting distance is 26.3mm, and 6I-shaped wheels with the phi of 300mm are used for mounting metal outer layer strands for production;

(D) wire rope stabilization treatment

After the steel wire rope is twisted, a two-section type intermediate frequency induction tempering device is adopted for tempering and stabilizing treatment, the treatment temperature is 180 ℃, and the treatment speed is 26 m/min.