CN104807878A - Sensor for damage detection of braided steel wire rope - Google Patents
Sensor for damage detection of braided steel wire rope Download PDFInfo
- Publication number
- CN104807878A CN104807878A CN201510129564.XA CN201510129564A CN104807878A CN 104807878 A CN104807878 A CN 104807878A CN 201510129564 A CN201510129564 A CN 201510129564A CN 104807878 A CN104807878 A CN 104807878A
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- wire rope
- steel wire
- support
- sensor
- hole
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses a sensor for damage detection of a braided steel wire rope. The sensor comprises a support made from insulated nylon, wherein the surface of the support is covered with an iron yoke with magnetism conduction capacity, the outside of the support is sleeved with a metal casing, a through hole allowing the steel wire rope to move is formed in the axis of the support, the middle of the axis is wound with an excitation coil, end parts of two sides of the excitation coil are wound with detection coils, and fixing rings for guaranteeing that the steel wire rope is always located on the center line of the through hole during moving are welded at two ends of the through hole. According to the magnetic resistance principle, wire breaking of the braided steel wire rope is detected online through linear excitation of a primary side and reverse connection of two windings of a secondary side of a differential transformer, and safe operation of the braided steel wire rope is guaranteed.
Description
Technical field
The present invention relates to a kind of sensor, particularly relate to a kind of sensor for Weaving Steel Wires damage check.
Background technology
Wire rope as promote, transport and load bearing equipment in critical component be widely used in many engineering fields this, its safety in utilization is most important.The rope strand of wire rope complexity connects stock and severe working environment makes it in use be easy to occur wearing and tearing, corrosion, fatigue, fracture of wire equivalent damage, causes its intensity to decline, causes potential safety hazard.The object of wire rope Non-Destructive Testing is the safe operation ensureing wire rope, and under the prerequisite of safe operation, reduce the waste produced because of premature failure as far as possible.
Power transmission engineering in electric system is used for hanging the wire rope of electric wire, and its cross section is not circular but squarish, because it have employed a kind of special mode, as braiding, is therefore called Weaving Steel Wires.This steel wire rope sling, just like traceless advantage after flexible, distortion, is very applicable to traction.The working environment very severe of Weaving Steel Wires, and require the intensity with high reliability, this just needs repairing and detection.Because of the structure that it is special, existing its Detection results of detection technique is not ideal enough.
Summary of the invention
The object of the invention is to the above problem overcoming prior art existence, a kind of sensor for Weaving Steel Wires damage check is provided, effectively realizes the on-line checkingi of Weaving Steel Wires fracture of wire.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of sensor for Weaving Steel Wires damage check, comprise the support be made up of insulated nylon, the surface of described support is covered by the iron yoke with magnetic conduction ability, outer cover is provided with metal shell, described support is positioned at shaft centre line place and is provided with the through hole that wire rope moves, be wound with field coil in the middle part of axle, the end being positioned at field coil both sides is wound with magnetic test coil, is positioned at the set collar on through hole center line when the two ends of described through hole are welded with for ensureing that wire rope moves all the time.
Further, the coil ratio of described field coil and magnetic test coil is 1:1.
The invention has the beneficial effects as follows:
The present invention, according to reluctance principle, utilizes the linear incentive on the former limit of differential transformer and the reversal connection of secondary two windings, achieves the on-line checkingi of Weaving Steel Wires fracture of wire, ensure that the safe operation of Weaving Steel Wires.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is fundamental diagram of the present invention;
Number in the figure illustrates: 1-support, 11-through hole, 2-metal shell, 3-field coil, 4-magnetic test coil, 5-set collar, 6-wire rope.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
As shown in Figure 1, a kind of sensor for Weaving Steel Wires damage check, comprise the support 1 be made up of insulated nylon, the surface of described support 1 is covered by the iron yoke with magnetic conduction ability, outer cover is provided with metal shell 2, described support 1 is positioned at shaft centre line place and is provided with the through hole 11 that wire rope 6 moves, field coil 3 is wound with in the middle part of axle, the end being positioned at field coil 3 both sides is wound with magnetic test coil 4, is positioned at the set collar 5 on through hole 11 center line when the two ends of described through hole 11 are welded with for ensureing that wire rope 6 moves all the time.
Further, above-mentioned field coil 3 is 1:1 with the coil ratio of magnetic test coil 4.
The principle of work of the present embodiment is as follows:
As shown in Figure 2, wire rope is used as armature by the present invention, if just like the damage of fracture of wire in wire rope, magnetic resistance will change, and moves wire rope along axis, can make the induction electromotive force that two secondary winding change, output voltage; Magnetic resistance change rate is changed by the air cleft gap in armature and common transformer between iron to cause, the change of this representative damage wire rope; When the armature position of common differential transformer changes, the mutual inductance of secondary winding
,
can change; When detecting for steel wire,
,
determined by magnetic resistance, the feature of its signal is differential.Because the diameter of Weaving Steel Wires is mostly less than 30mm, single loop excitation can meet the demands.
Claims (2)
1. the sensor for Weaving Steel Wires damage check, comprise the support (1) be made up of insulated nylon, the surface of described support (1) is covered by the iron yoke with magnetic conduction ability, outer cover is provided with metal shell (2), it is characterized in that: described support (1) is positioned at shaft centre line place and is provided with the mobile through hole (11) of wire rope (6), field coil (3) is wound with in the middle part of axle, the end being positioned at field coil (3) both sides is wound with magnetic test coil (4), the two ends of described through hole (11) are welded with for ensureing that wire rope (6) is positioned at the set collar (5) on through hole (11) center line all the time time mobile.
2. the sensor for Weaving Steel Wires damage check according to claim 1, is characterized in that: described field coil (3) is 1:1 with the coil ratio of magnetic test coil (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129564.XA CN104807878A (en) | 2015-03-24 | 2015-03-24 | Sensor for damage detection of braided steel wire rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129564.XA CN104807878A (en) | 2015-03-24 | 2015-03-24 | Sensor for damage detection of braided steel wire rope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104807878A true CN104807878A (en) | 2015-07-29 |
Family
ID=53692886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510129564.XA Pending CN104807878A (en) | 2015-03-24 | 2015-03-24 | Sensor for damage detection of braided steel wire rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104807878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645386A (en) * | 2016-12-02 | 2017-05-10 | 北京邮电大学 | Online monitoring instrument of aerial mancar wire rope |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88201272U (en) * | 1988-02-09 | 1988-11-30 | 蒋旭华 | Steel wire flaw detector without damage |
| KR20010064341A (en) * | 1999-12-29 | 2001-07-09 | 이구택 | Eddy current sensor for inspection a wire surface |
| CN204649686U (en) * | 2015-03-24 | 2015-09-16 | 肖勤 | For the sensor of Weaving Steel Wires damage check |
-
2015
- 2015-03-24 CN CN201510129564.XA patent/CN104807878A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88201272U (en) * | 1988-02-09 | 1988-11-30 | 蒋旭华 | Steel wire flaw detector without damage |
| KR20010064341A (en) * | 1999-12-29 | 2001-07-09 | 이구택 | Eddy current sensor for inspection a wire surface |
| CN204649686U (en) * | 2015-03-24 | 2015-09-16 | 肖勤 | For the sensor of Weaving Steel Wires damage check |
Non-Patent Citations (1)
| Title |
|---|
| 王兵 等: "基于差动变压器的编织式钢丝绳损伤检测传感器", 《仪表技术与传感器》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645386A (en) * | 2016-12-02 | 2017-05-10 | 北京邮电大学 | Online monitoring instrument of aerial mancar wire rope |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |
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| WD01 | Invention patent application deemed withdrawn after publication |