Rope capable of prompting fatigue degree

A fatigue level and rope technology, applied in the field of ropes that can indicate fatigue level, can solve problems such as rope breakage, and achieve the effect of low cost

Active Publication Date: 2016-11-09
QINGDAO HUAKAI OCEAN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can only reveal the color of the core fiber when the outer layers of the cortex are worn to indicate the risk of rope breakage. It cannot indicate the risk of rope breakage when the rope is not worn but only breaks due to reaching the maximum load. In most rope use cases, the safety load of the rope will be much less than the maximum load

Method used

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  • Rope capable of prompting fatigue degree

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Experimental program
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Effect test

Embodiment 1

[0021] A rope that can indicate the degree of fatigue, which includes a rope core 1, a rope sheath 2, and a sheath 3, the rope core is wrapped with a rope sheath, the rope sheath is provided with a sheath, and the rope sheath is provided with An annular area 4, the annular area is divided into an inner annular area 5 and an outer annular area 6, which are distributed according to the outer annular area, the inner annular area, and the outer annular area from top to bottom, and the inner annular area and the outer annular area are respectively coated with There are two kinds of pigments with different colors from the rope skin, the waistline of the inner ring area is the waist line of the ring area; The area is the same, the width of the sheath just covers the annular area of ​​the rope sheath, the waistline of the sheath coincides with the waistline of the annular area, and the sheath is fixed on the belt along the waistline of the annular area. On the rope sheath; the length ...

Embodiment 2

[0025] The width of the above-mentioned outer annular area that can indicate the degree of fatigue is determined by the following method, and the specific steps are as follows:

[0026] 1) Select a rope core and a rope sheath for preparing a rope that can indicate the degree of fatigue, the rope core is wrapped with a rope sheath, and it is cut into 3-10 sections of ropes to be tested with different lengths;

[0027] 2) Take 2-5 ropes to be tested of the same length at each length as parallel comparisons, fix the two ends of the ropes to be tested on the clamps of the universal material testing machine, stretch slowly, and set them by computer The tensile speed of the universal material testing machine, until the rope to be tested is broken, and the relationship curve and data between the tensile load and the length of the rope to be tested are recorded by the computer;

[0028] 3) Use SPSS mathematical software to analyze and calculate the relationship curve and data between ...

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Abstract

The invention relates to the technical field of rope processing, in particular to a rope capable of prompting the fatigue degree. The rope comprises a rope core, a sheath and a jacket, wherein the rope core is covered with the sheath; the jacket is arranged outside the sheath; circular areas are arranged on the sheath and comprise an inner circular area and outer circular areas, the outer circular area, the inner circular area and the outer circular area are sequentially distributed from top to bottom, and the inner circular area and the outer circular areas are coated with two pigments different from the sheath in color respectively; the width of the jacket is equal to that of the circular areas on the sheath, and the jacket just covers the circular areas of the sheath. The rope capable of prompting the fatigue degree fills in the gap in the prior art, a user can directly see whether the rope reaches or exceeds the own safe load, complex and high-cost equipment such as electronic load sensors and the like are not required, and the rope can be made of various materials and is simple, practical and low in cost.

Description

technical field [0001] The invention relates to the technical field of rope processing, in particular to a rope that can indicate the degree of fatigue. Background technique [0002] When the rope is used for high-altitude operations, hoisting or towing heavy cargo, and tying ships with high tension and high safety requirements, it is necessary to avoid the risk of breaking, usually by checking in advance or installing an anti-break device. However, the anti-break device can only ensure that the most likely point of breakage is continuous. Due to the complexity of the length and bending of the rope, there is no obvious sign of wear and tear, so it is inevitable to miss something, which will cause the risk of breakage, resulting in light loss of goods. Accidents involving ships and casualties. [0003] Invention patent CN201310585941.1 discloses a rope that avoids the risk of breaking. It has a multi-strand multi-layer structure. At least the outer strands are made of differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D07B1/14D07B1/16
CPCD07B1/145D07B1/16D07B2201/2066D07B2205/2042D07B2205/2046D07B2205/2064D07B2205/2071D07B2801/14
Inventor 刁新源张旭明谢丹
Owner QINGDAO HUAKAI OCEAN SCI & TECH
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