A steel wire rope (10) is provided with a core rope (20) formed by twisting a plurality of core rope strands (21). The core strand (21) has an inner core (22) formed from a yarn obtained by twisting a plurality of first synthetic fibers, and a plurality of outer cores (23) arranged on the outer periphery of the inner core (22) and formed from a yarn obtained by twisting a plurality of second synthetic fibers. Furthermore, the second compressive yield strength is higher than the first compressive yield strength, the second compressive yield strength being a compressive stress at which the second synthetic fiber begins to plastically deform when the second synthetic fiber is compressive deformed in the radial direction. The first compressive yield strength is a compressive stress at which the first synthetic fiber begins to plastically deform at the time of compressive deformation in the radial direction of the first synthetic fiber. As a result, it is possible to provide a steel wire rope (10) having excellent durability by means of the outer core (23) while suppressing elastic elongation by means of the inner core (22).
钢丝绳(10)具备由多根芯绳股线(21)捻合而成的芯绳(20)。芯绳股线(21)具有内部芯(22)和多个外部芯(23),所述内部芯由多根第一合成纤维捻合而成的纱线形成,所述多个外部芯由多根第二合成纤维捻合而成的纱线形成,配置在内部芯(22)的外周。而且,第二压缩屈服强度比第一压缩屈服强度高,所述第二压缩屈服强度是在第二合成纤维的径向上的压缩变形时第二合成纤维开始发生塑性变形的压缩应力,所述第一压缩屈服强度是在第一合成纤维的径向上的压缩变形时第一合成纤维开始发生塑性变形的压缩应力。由此,能够提供通过内部芯(22)抑制弹性伸长的同时通过外部芯(23)使耐久性优异的钢丝绳(10)。
Steel wire rope, elevator, and steel wire rope manufacturing method
钢丝绳、电梯以及钢丝绳的制造方法
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
European Patent Office | 2019
|European Patent Office | 2019
|European Patent Office | 2018
|European Patent Office | 2017
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