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Wire rope composite fiber core and production method and application thereof

A composite fiber and wire rope technology, applied in textiles and papermaking, textile cables, elevators, etc., can solve the problems of increasing the vibration and noise of elevator wire ropes, fluctuations in the length direction of the diameter of the rope core, and uneven thickness of a single fiber, to avoid diameter The effect of large fluctuation, uniform rope diameter and good oil absorption

Pending Publication Date: 2018-07-24
海城正昌工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In fact, the use of sisal to prepare the rope core also has some disadvantages. The sisal fiber is relatively thick and the thickness of a single fiber is uneven, which makes it difficult to control the uniformity during spinning, and the diameter of the produced rope core will vary along the length direction. Large fluctuations, which in turn increase the vibration and noise of the elevator wire rope when the elevator is running

Method used

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  • Wire rope composite fiber core and production method and application thereof
  • Wire rope composite fiber core and production method and application thereof
  • Wire rope composite fiber core and production method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0025] The method for preparing a composite fiber core of a steel wire rope comprises the following steps:

[0026] 1) Pretreatment of jute yarn: The purchased jute yarn is soaked in oil at high temperature for 20-25 hours, and then oil-controlled for 20-25 hours, so that the jute yarn can absorb oil evenly and saturated;

[0027] 2) Preparation of a single strand of composite fiber core: the pretreated jute yarn and polypropylene yarn in step 1) are loaded on a single twisting machine, uniformly arranged through a splitter, and after passing through a sizing die, twisted into a center It is the main core 1 of jute, and the outer layer is a single strand of composite fiber core of polypropylene outer core 2; when twisting, the pay-off tension of the jute yarn is greater than that of the polypropylene yarn, so that the polypropylene yarn is tightly wrapped in the jute yarn. The outer side of the main core 1;

[0028] 3) Plying of the composite fiber core of the steel wire rope...

Embodiment 1

[0032] like figure 1 As shown, in this embodiment, the composite fiber core of the steel wire rope is made of 3 composite fiber cores twisted in a single strand, and each composite fiber core single strand includes a jute main core 1 and a polypropylene outer core 2; the jute main core 1 is composed of 1 central jute yarn and 6 outer jute yarns, and the 6 outer jute yarns are evenly wrapped on the outside of the central jute yarn; 8 polypropylene filaments form the polypropylene outer core 2 and are evenly wrapped in Outside of main jute core 1.

[0033] As shown in Table 1 and Table 2, the test data comparison table of the present embodiment, on the basis of reaching the national standard, the out-of-roundness and the gap rate of the steel wire rope prepared by the method of the present invention are all better than the sisal core whole rope. As shown in Table 3, when using the special fatigue testing machine of Mitsubishi and OTIS to carry out the fatigue test, the wire bre...

Embodiment 2

[0041] like figure 2 As shown, in this embodiment, the composite fiber core of the steel wire rope is made of 3 composite fiber cores twisted in a single strand, and each composite fiber core single strand includes a jute main core 1 and a polypropylene outer core 2; the jute main core 1 is composed of 4 jute yarns twisted together; 7 polypropylene filaments form a polypropylene outer core 2 and are evenly wrapped on the outside of the jute main core 1.

[0042] As shown in Table 4 and Table 5, comparing the detection data of this example, on the basis of reaching the national standard, the out-of-roundness and the gap ratio of the steel wire rope prepared by the method of the present invention are all better than the whole rope with sisal core. As shown in Table 6, when using the special fatigue testing machine of Mitsubishi and OTIS to carry out the fatigue test, the wire breakage rate and corrosion resistance of the wire rope prepared by the method of the present invention...

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Abstract

The invention relates to a wire rope composite fiber core and a production method and application thereof. The wire rope composite fiber core is formed by singly twisting multiple composite fiber cores; the single strand of each composite fiber core includes a jute main core and a polypropylene outer core; multiple polypropylene yarns form the polypropylene outer core evenly covering the outer side of the jute main core. The jute yarn is used to replace sisal yarn to produce the wire rope core, and the problem of high core diameter fluctuations is avoided; the jute core has uniform diameter and good oil absorption, and operational vibration and noise of an elevator are effectively relieved; yarn fracture rate of a whole rope is better than that of a rope with a sisal core; by using the composite structure of the polypropylene yarn outer core twisted to the jute main core, the defect that the jute fiber is less than sisal fiber in fiber strength, and the strength of the composite fibercore is better than that of the sisal core.

Description

technical field [0001] The invention relates to the technical field of steel wire rope production, in particular to a steel wire rope composite fiber core and a preparation method and application thereof. Background technique [0002] At present, sisal is the main material used as the fiber core of elevator wire ropes on the market, and the cores of some governor ropes and balance ropes are made of polyolefin-based synthetic fibers. The sisal rope core has the advantages of strong texture, good elasticity, friction resistance, corrosion resistance and good oil absorption, and can play a good role in supporting, shock absorption and oil storage in the wire rope. However, the amount of sisal planting in the world is getting smaller and smaller. Due to the limitation of sisal production and the extensive use of sisal rope cores, the price of sisal has been rising year by year. Due to cost pressure, all elevator rope manufacturers are looking for swords. Alternative to hemp rop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D07B1/00D07B1/14
CPCD07B1/005D07B1/141D07B2501/2007D07B2401/2025D07B2201/2009D07B2201/102D07B2201/2057D07B2201/2066D07B2205/103D07B2205/201D07B2801/10D07B2801/14
Inventor 孔维安黄东旭房纯彪张久财胡春林
Owner 海城正昌工业有限公司
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