Replaceable fiber bragg grating intelligent inhaul cable and replacement method thereof

A fiber grating and replaceable technology, which is applied in the direction of optical devices, instruments, building components, etc., can solve the problems of high space requirements at the rear end of the cables, poor indirect measurement accuracy, and large consumption of manpower and material resources, so as to reduce production costs. Process, high precision, and the effect of reducing the probability of damage

CN114526685APending Publication Date: 2022-05-24LIUZHOU OVM MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-05-24

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Abstract

The invention discloses a replaceable fiber bragg grating intelligent inhaul cable and a replacement method thereof.The replaceable fiber bragg grating intelligent inhaul cable comprises a cable body, wire dividing plates, an anchor cup, a threaded connector and a steel strand with a fiber bragg grating, the cable body penetrates through one end of the anchor cup, and the steel strand in the cable body penetrates through the wire dividing plates located at the other end of the anchor cup; wherein the center wire steel strand is shorter than other steel strands of the cable body, the center wire steel strand is clamped to one end of the threaded connector, the other end of the threaded connector is fixed to one side of a center hole of the wire dividing plate, an internal thread structure is arranged on the inner side of the end of the threaded connector, and an external thread structure is arranged on the outer surface of one end of the steel strand with the fiber bragg grating. And a central hole penetrating through the wire separating plate is in threaded connection with the threaded connector. Intelligent, convenient and rapid replacement and disassembly of the fiber bragg grating can be realized without using large-scale equipment such as a winch and a jack.
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Description

technical field

[0001] The invention relates to the technical field of an intelligent cable, in particular to a replaceable optical fiber grating intelligent cable and a replacement method thereof. Background technique

[0002] At present, the technology of smart fiber grating cables has gradually matured. The prestressed bars (smart bars) of fiber grating sensors are coupled to the cables, but their service life is generally shorter than that of the cables, and fiber grating sensors are usually manufactured in When the cable body is pre-buried, it is easy to cause damage in the subsequent cable making process. Optical fiber is a brittle material, and its tensile strain after being stressed is smaller than that of steel, so it cannot be used for long cables.

[0003] Most of the existing fiber grating and cable coupling technologies are to implant the fiber grating sensor into the cable body, but the smart bars do not participate in the overall force of the cable, resulting...

Examples

Embodiment 1

[0037] like figure 1 , a replaceable fiber grating intelligent cable, comprising a cable body 1, a splitter plate 3, an anchor cup 2, a threaded connector 5 and a steel hinge line 7 with fiber grating, the cable body 1 passing through the anchor cup 2 At one end of the cable body 1, the steel hinge lines in the cable body 1 respectively pass through the wire splitting plate 3 located at the other end of the anchor cup 2; the center wire steel hinge line 4 is shorter than the other steel hinge lines of the cable body, and the center wire steel hinge line 4 is clamped. At one end of the threaded connector 5, the other end of the threaded connector 5 is fixed on one side of the central hole of the splitter plate 3 and an internal thread structure is provided on the inner side of the end. The outer surface of one end is provided with an external thread structure, which is threadedly connected to the threaded connection head 5 through the central hole of the wire separating plate 3...

Embodiment 2

[0040] On the basis of Example 1, as figure 2, a replaceable fiber grating intelligent cable also includes a threaded sleeve 8, the inner surface of the threaded sleeve 8 is provided with an internal thread structure, the outer surface of the threaded sleeve 8 is provided with an external thread structure, the steel with fiber grating One end of the hinge line 7 is first threadedly connected with the inner surface of the threaded sleeve 8 , and then is threadedly connected with the inner thread structure of the other end of the threaded connector 5 through the outer surface of the threaded sleeve 8 .

Embodiment 3

[0042] On the basis of the previous embodiment, as figure 2 , a replaceable fiber grating intelligent cable also includes a locking nut 9, and the outer surface of the other end of the steel hinge wire 7 with fiber grating is provided with an external thread structure that matches the internal thread of the locking nut 9, so The steel hinge wire with fiber grating is anchored with the anchor hole of the splitter plate 3 through the locking nut 9 .