CN206563625U - A kind of built-in cable tension sensor - Google Patents
A kind of built-in cable tension sensor Download PDFInfo
- Publication number
- CN206563625U CN206563625U CN201621459788.3U CN201621459788U CN206563625U CN 206563625 U CN206563625 U CN 206563625U CN 201621459788 U CN201621459788 U CN 201621459788U CN 206563625 U CN206563625 U CN 206563625U
- Authority
- CN
- China
- Prior art keywords
- cable
- built
- wire
- zinc
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model is related to a kind of built-in cable tension sensor, is related to cable force measurement, structural safety monitoring field.The sensor device it include a zinc-coated wire and vibrating string extensometer；The zinc-coated wire is attached with vibrating string extensometer by installing adapter；Thread head is provided at both ends with zinc-coated wire；Vibrating wire sensor signal wire is connected with vibrating string extensometer.In summary, when producing cable, the present apparatus can be installed and cable cable body, the original volume size of cable is not influenceed.By being built in cable cable body, measuring steel wire, using being rigidly connected, rope force value is worth to by the strain of measuring steel wire with cable.
Description
Technical field
The utility model is related to a kind of built-in cable tension sensor, is related to cable force measurement, structural safety monitoring field.
Background technology
Suo Li change is to weigh the important symbol whether wire rope assemblies is in normal operational regime.Cable is a kind of
Internal high order redundant structure, can make the linear and internal force of cable reach perfect condition by adjusting the Suo Li of drag-line.But
It is that, if actual Suo Li deviate from design Suo Li, this deviation can not only make to produce unbalance loading between cable（Unbalance loading is to cause steel
The one of the main reasons of cable breaks）, Sarasota and girder is produced moment of flexure.By the on-line monitoring to wirerope cable force,
The dynamic change trend of wirerope cable force is not only obtained, the technology status for generally evaluation cable provides foundation, while
It can find whether anchor system, the guard system of drag-line are intact, and whether cable wire occurs corrosion etc., is cable to a certain extent
Timely maintenance provide objective basis.
The method of traditional cable force measurement mainly has pressure-bearing type pressure sensor, i.e. rope meter, pressure rings class sensor, due to
Measured using direct pressure-bearing type, the volume of sensor is larger, and installation difficulty is larger.Simultaneously because sensors with auxiliary electrode belongs to cable body
Two kinds of structures, the compatibility issue of installation dimension is often resulted in when actual design is applied, and there is certain deficiency.
In recent years, each research institutions, unit design a kind of built-in optical fiber grating sensor, i.e., by optical fiber grating sensing
Device is fused to inside cable body, when Dang Suoli changes, and fiber grating internal stress changes, and phase is produced to reflected light wavelength
Move, change of the harvester by measuring launch wavelength obtains rope force value.But the product practical application effect is not good, main cause
The link that is cable in production, transport, hoisting process easily causes the damage of fiber-optic grating sensor, and due to be it is built-in,
It can not be repaired after damage, therefore also there is certain difficulty in actual popularization and application.
Traditional cable force measurement method or product have certain application within a period of time, and such as rope meter and pressure rings are passed
Sensor measures Suo Li, but certain popularization and application fiber Bragg grating type sensor is influenceed the problems such as its installation difficulty, volume due to it
Self-protection performance is low, is highly prone to the destruction of external force, therefore the actual survival rate of fiber Bragg grating type sensor is low, it is difficult to promote
Using.
The content of the invention
The purpose of this utility model is to provide a kind of built-in cable tension sensor, can incited somebody to action in cable manufacture production process
Sensor is installed and cable cable body, and drag-line itself outward appearance and volume are not influenceed, available for cable force measurement.
The technical problems to be solved in the utility model is that：1）Solve existing built-in fiber grating class sensor itself
The problem of stability and reliability.2）Sensor does not influence cable body self structure and size using built-in.
In order to solve the above technical problems, the following technical scheme that the utility model is used：
A kind of built-in cable tension sensor, the sensor device it include a zinc-coated wire and vibrating string extensometer；
The zinc-coated wire is attached with vibrating string extensometer by installing adapter；
Thread head is provided at both ends with zinc-coated wire；
Vibrating wire sensor signal wire is connected with vibrating string extensometer.
A diameter of 6-8mm of the zinc-coated wire.
The zinc-coated wire of this built-in cable tension sensor and other equal lengths is tied up simultaneously, and cable is fixed on by thread head
The two ends of anchor head, vibrating wire sensor signal wire leads to cable two ends extraction.
This built-in cable tension sensor outer surface is enclosed with the PE overcoats of cable body.
In order to improve the reliability of cable tension sensor sensing element, it is to avoid fiber Bragg grating type sensor guard performance is low to be lacked
Point, the present apparatus is used as sensing unit using vibrating string extensometer.Vibrating wire sensor is because its is simple in construction, stability is high, anti-interference
The advantages of ability is strong, measurement accuracy is high is widely used in Geotechnical Engineering monitoring industry, with very big market utilization rate.Type vibration wire
Sensor is current most attention and wide variety of sensor both at home and abroad.Vibrating string type sensor has simple in construction, firm resistance to
With, antijamming capability, measured value reliable, precision and resolving power is high and the advantages of good stability；It is output as frequency signal, is easy to remote
Distance Transmission, is widely used in Geotechnical Engineering.
The general work principle of vibrating string type sensor is：Vibratory string is placed in magnetic field, and certain way is subject to exciting to vibratory string
Afterwards, vibratory string will resonate, and the string of a musical instrument of resonance makees cutting magnetic line movement in magnetic field, can induce electricity in pick-up coil
Gesture, the frequency of induced potential is exactly the resonant frequency of vibratory string.From mechanics principle, what the resonant frequency of vibratory string was born with the string of a musical instrument
The pressure or displacement that tension force or pulling force are born with sensor are linear, therefore measure the resonant frequency of vibratory string and can obtain
Measured physical quantity.
The utility model is using vibrating string extensometer, 7mm zinc-coated wires, erection joint composition.When actual use, measurement is used
Cable anchor head two ends are fixed at zinc-coated wire two, and centre is fixed strain gauge with zinc-coated wire by mounting head.Zinc-coated wire
The anchor head at cable two ends is fixed at two ends by screw thread mounting head.So that cable and measuring steel wire, measuring steel wire and strain gauge are equal
Using being rigidly connected.When cable under tension, while active force and measuring steel wire, therefore, pass through the strain value of measuring steel wire
Obtain actual rope force value.Because vibrating string type sensor belongs to mechanical structure sensor, Stability Analysis of Structures is reliable, and barrier propterty is high.Tool
The characteristic of standby engineer applied.
The beneficial effects of the utility model：
In summary, when producing cable, the present apparatus can be installed and cable cable body, does not influence the original volume of cable big
It is small.By being built in cable cable body, measuring steel wire, using being rigidly connected, Suo Li is worth to by the strain of measuring steel wire with cable
Value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is finished product cable schematic diagram after the utility model is installed
In Fig. 2：11 be cable anchor head；12 anchor ring nuts；13 be anchor cup；14 be the PE overcoats of cable body；15 be built-in
Formula cable tension sensor.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings：
A kind of built-in cable tension sensor, the sensor device it include a zinc-coated wire 2 and vibrating string extensometer 4；
The zinc-coated wire 2 is attached with vibrating string extensometer 4 by installing adapter 3；
Thread head 1 is provided at both ends with zinc-coated wire 2；
Vibrating wire sensor signal wire 5 is connected with vibrating string extensometer 4.
A diameter of 6-8mm of the zinc-coated wire 2.
The zinc-coated wire of this built-in cable tension sensor 15 and other equal lengths is tied up simultaneously, is fixed on by thread head 1
The two ends of cable anchor head 11, vibrating wire sensor signal wire 5 leads to cable two ends extraction.
This built-in outer surface of cable tension sensor 15 is enclosed with the PE overcoats 14 of cable body.
Claims (4)
1. a kind of built-in cable tension sensor, it is characterised in that：The sensor device it include zinc-coated wire（2）And vibratory string
Formula strain gauge（4）；
The zinc-coated wire（2）With vibrating string extensometer（4）By installing adapter（3）It is attached；
In zinc-coated wire（2）Be provided at both ends with thread head（1）；
In vibrating string extensometer（4）On be connected with vibrating wire sensor signal wire（5）.
2. built-in cable tension sensor according to claim 1, it is characterised in that：The zinc-coated wire（2）It is a diameter of
6-8mm。
3. built-in cable tension sensor according to claim 1, it is characterised in that：This built-in cable tension sensor（15）With
The zinc-coated wire of its equal length is tied up simultaneously, passes through thread head（1）It is fixed on cable anchor head（11）Two ends, vibrating wire sensor letter
Number line（5）Extraction is led to cable two ends.
4. built-in cable tension sensor according to claim 1, it is characterised in that：This built-in cable tension sensor（15）Outside
It is coated with the PE overcoats of cable body（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621459788.3U CN206563625U (en) | 2016-12-29 | 2016-12-29 | A kind of built-in cable tension sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621459788.3U CN206563625U (en) | 2016-12-29 | 2016-12-29 | A kind of built-in cable tension sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206563625U true CN206563625U (en) | 2017-10-17 |
Family
ID=60028711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621459788.3U Active CN206563625U (en) | 2016-12-29 | 2016-12-29 | A kind of built-in cable tension sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206563625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024279A (en) * | 2018-09-30 | 2018-12-18 | 柳州欧维姆机械股份有限公司 | A kind of built-in acceleration sensor drag-line |
| CN109371837A (en) * | 2018-11-02 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of suspension cable damper for taking into account cable tension test |
-
2016
- 2016-12-29 CN CN201621459788.3U patent/CN206563625U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024279A (en) * | 2018-09-30 | 2018-12-18 | 柳州欧维姆机械股份有限公司 | A kind of built-in acceleration sensor drag-line |
| CN109371837A (en) * | 2018-11-02 | 2019-02-22 | 中铁大桥科学研究院有限公司 | A kind of suspension cable damper for taking into account cable tension test |
| CN109371837B (en) * | 2018-11-02 | 2023-08-18 | 中铁大桥科学研究院有限公司 | Stay cable damper capable of testing cable force |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102175359B (en) | Passive magnetism monitoring method and device for wire rope/rod component stress | |
| CN102288534B (en) | Fiber grating reinforced concrete rusting sensor with temperature compensation | |
| CN103528720B (en) | Precise detection device and detection method for stress of invitro prestressed steel beam | |
| CN103383246A (en) | High-sensitivity fiber Bragg grating strain sensor | |
| CN101576422B (en) | Optical fiber grating anchor stress sensor | |
| CN102121860A (en) | Corrugated diaphragm type pipe external pressure sensor, oil-water well casing external pressure monitoring device and method | |
| CN206563625U (en) | A kind of built-in cable tension sensor | |
| CN101701800A (en) | Optical fiber gradient measuring sensor and tailing storeroom optical fiber gradient measuring system | |
| CN203337111U (en) | Hoop type optical fiber grating reinforcement meter | |
| CN102944581A (en) | Method for monitoring structural damage of conduit offshore platform | |
| CN103335772A (en) | Temperature and pressure sensor of fiber Bragg grating | |
| CN103411713B (en) | Wide range is based on the reinforcing steel corrosion monitoring sensor of fiber grating sensing technology | |
| Duan et al. | FBG smart bolts and their application in power grids | |
| CN111521316B (en) | Multi-gear vibrating wire type bolt state monitoring device and use and identification method thereof | |
| CN206248252U (en) | A kind of anchor pole axial direction dynamometer | |
| CN108534730A (en) | A kind of device for measuring soil body deeply mixing cement-soil pile and surface settlement in real time | |
| CN202166600U (en) | Fiber grating reinforced concrete corrosion sensor with temperature compensation | |
| CN111006603B (en) | Steel bar stress strain gauge | |
| CN103245304B (en) | For the band temperature-compensated fiber angular transducer that shaft tower level angle is measured | |
| CN208238763U (en) | A kind of device for real-time measurement soil body deeply mixing cement-soil pile and surface settlement | |
| CN104407375A (en) | Underground probe of earthquake prediction instrument | |
| CN205688663U (en) | A kind of intelligent reinforcing bar based on FBG | |
| CN202401396U (en) | Intelligent cable capable of sensing internal humidity for bridge | |
| CN202582504U (en) | Reflective grating strainometer | |
| CN101354271B (en) | High-voltage transmission line pole tower operation safe monitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |