CN208872448U - A kind of steel wire rope tension detection device of Bypass Excitation mode - Google Patents
A kind of steel wire rope tension detection device of Bypass Excitation mode Download PDFInfo
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- CN208872448U CN208872448U CN201821696498.XU CN201821696498U CN208872448U CN 208872448 U CN208872448 U CN 208872448U CN 201821696498 U CN201821696498 U CN 201821696498U CN 208872448 U CN208872448 U CN 208872448U
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- steel wire
- magnetic pole
- magnetism gathering
- gathering rings
- excitation
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Abstract
The utility model discloses a kind of steel wire rope tension detection devices of Bypass Excitation mode, are mainly made of excitation mechanism, testing agency, circuit board three parts；The excitation mechanism mainly includes magnet exciting coil, iron core and magnetic pole, and the magnet exciting coil is wrapped on iron core, and the magnetic pole is mounted on iron core both ends, and the through-hole for steel wire penetrating is equipped on the magnetic pole；The testing agency is mounted on the lower section of excitation mechanism, mainly includes Hall element, two magnetism gathering rings, bushings, and the bushing both ends are fixed between two magnetic poles, and the inner ring of bushing is for steel wire penetrating；Two magnetism gathering rings are embedded in bushing outer ring, two magnetism gathering rings spacing are just the length scale of Hall element, bridge is formed between two magnetism gathering rings, Hall element is placed among bridge, the magnetic field signal that magnetism gathering rings are collected is detected that the Hall element is connected with signal processing circuit by bridge by Hall element.
Description
Technical field
The utility model belongs to steel wire rope tension detection field, and in particular to a kind of steel wire rope tension of Bypass Excitation mode
Detector.
Background technique
Wirerope be it is a kind of with elasticity is good, intensity is high, from the flexible member of heavy and light.Suitable for traction, pulls, ties up
Various purposes are the key building block of many equipment, such as mine hoisting, crane, elevator, suspension bridge, passenger aerial ropeway
Deng.The safety of lifting means and its component is in Machine Design one to being highly important.Its carrying situation direct relation
It is very necessary to the normal operation of equipment and the safety of personnel, therefore to the detection of the tension of wirerope.
Electromagnetic detection method is the current detection widely used method of steel wire rope tension, is occurred in the market very based on the method
Mostly similar detector.Telescopic excitation and bypass type excitation can be divided into according to the frame mode of excitation, two kinds of excitation modes are equal
Excitation effect needed for detection can be reached.But for the wirerope used has been put into, telescopic excitation because be difficult by
Magnet exciting coil is inserted in in-service wirerope, therefore is hardly had practicability in terms of magnetic structure, can be divided into open type and closed
Road formula, open type overall structure is simple, only magnet exciting coil and induction coil, is constituted closed magnetic circuit using air as magnetic bridge, by
It is poor in air magnetic property, cause magnetic circuit closure effect poor, so that wirerope excitation effect is poor, simultaneously because empty
The presence that more interference magnetic field is had in gas, has seriously affected the signal-to-noise ratio of detection signal, causes testing result inaccurate.It is encouraging
The selection aspect of magnetic source, majority detectors carry out excitation using permanent magnet at present, though permanent magnet is easy for installation without general
Property, can not make the lucky magnetic saturation of wirerope according to the model change excitation intensity of wirerope, and permanent magnet excitation stroke compared with
Short, uniformity is poor, leads to the unstable of the magnetic induction intensity in wirerope, has seriously affected the accuracy of detection signal.In master
In terms of flux detection, many detectors all employ coil method at present, but for the wirerope used has been put into, coil need to show
Field winding, and winding effect is required to be uniformly distributed, cause it with certain technical difficulty.The winding repeatedly of coil, reduces
The service life of coil, sexual valence are relatively low.
Utility model content
The utility model has stronger practicability to in-service steel wire rope tension detection aspect, can using Bypass Excitation mode
To reduce the working efficiency due to caused by field-winding low, the problems such as measurement error is big.Using closed magnetic circuit, the external world can be reduced
The influence of excitation condition, reducing the high temperature variation because caused by electric current is excessive causes testing result inaccurate.Using coil
Excitation mode, more versatility can adjust exciting current according to the model of wirerope, and wirerope is made just to reach excitation saturation shape
State, while effectively preventing the problems such as excitation stroke is short, excitation effect is uneven.Using Hall element as detecting element, suddenly
Your element is easy for installation, and detection sensitivity is high, and without cumbersome installation route, and Hall element parameter is complete, facilitates detection electricity
The debugging on road and general judgement to testing result accuracy
The technical solution adopted in the utility model is as follows:
A kind of steel wire rope tension detection device of Bypass Excitation mode, mainly by excitation mechanism, testing agency, circuit board three
It is grouped as；
The excitation mechanism mainly includes magnet exciting coil, iron core and magnetic pole, and the magnet exciting coil is wrapped on iron core, institute
The magnetic pole stated is mounted on iron core both ends, and the through-hole for steel wire penetrating is equipped on the magnetic pole；
The testing agency is mounted on the lower section of excitation mechanism, mainly includes Hall element, two magnetism gathering rings, lining
Set, the bushing both ends are fixed between two magnetic poles, and the inner ring of bushing is for steel wire penetrating；Two magnetism gathering rings edge
Embedded in bushing outer ring, two magnetism gathering rings spacing are just the length scale of Hall element, form bridge, bridge between two magnetism gathering rings
Hall element is placed among road, the magnetic field signal that magnetism gathering rings are collected is detected by bridge by Hall element, the Hall member
Part is connected with signal processing circuit.
Further, the bushing is made of upper semicylindrical bushing and lower semicylindrical bushing, each magnetism gathering rings by
Upper half magnetism gathering rings and lower half magnetism gathering rings composition, upper half magnetism gathering rings are nested in upper semicylindrical bushing outer ring；Lower half magnetism gathering rings are nested
In lower semicylindrical bushing outer ring；When two semi-cylindrical bushings are closed, the magnetism gathering rings are also just closed, and two semicircles
The space for steel wire penetrating is formed after cylindrical bushing is closed together.
Further, the magnetic pole includes upper and bottom section, and upper portion magnetic pole and lower portion magnetic pole pass through connection
After part links together, the hole for steel wire penetrating is formed.
Further, the interface of the bushing of two semi-cylindricals and the interface of magnetic pole upper and lower part are same
In one plane；The bushing of upper semicylindrical is fixed on the upper part of magnetic pole, and the bushing of lower semicylindrical is fixed under magnetic pole
Part.
Further, to guarantee in entire magnetic loop in structure size, the cross-sectional area and magnetic pole of the iron core are logical
The cross-sectional area in hole is both greater than the cross-sectional area of wirerope itself；Guarantee that excitation reaches the required magnetic efficiency of measurement.
Further, after steel wire penetrating magnetic pole, iron core, magnetic pole, wirerope form closed magnetic loop, and magnetic field is by excitation
Coil generates, and magnetic field size is controlled by the size of current of magnet exciting coil.
Further, the magnet exciting coil is using insulation enamel covered wire, identical magnet exciting coil volume and exciting current
In the case of, the diameter of copper wire is thinner, and excitation effect is better.
Further, the iron core and magnetic pole select the preferable ingot iron of magnetic property.
Further, a nylon sheet is covered at the top of the magnetic pole, can be placed in the nylon sheet circuit board, power supply,
Indicator light；The circuit board mainly completes magnet exciting coil power supply, testing agency's power supply, the pretreatment of hall element output signal
Function；The power supply of circuit board can be placed in nylon sheet, can also be with the power supply unit of external large volume, but no more than
The rated condition of circuit.
Further, shielded cable connection, shielded cable and electricity are all made of between magnet exciting coil, Hall element and circuit board
Using aviation plug connection so that it is convenient to which the connection of circuit, the signal output line of circuit board use signal shielding electricity between the plate of road
Cable.
The detection method detected using above-mentioned apparatus to in-service steel wire rope tension is as follows:
The upper part of magnetic pole is connected with the bushing of magnet exciting coil, iron core and upper semicylindrical, forms the upper of detector
Half part；The lower part of magnetic pole is connected with the bushing of lower semicylindrical；Form the lower half portion of detector；
The top half of the top half and active service wirerope that will test device cooperates, and will test lower half portion and the active service of device
The lower half portion of wirerope cooperates；Then two parts are connected by connector；
It is powered to magnet exciting coil, iron core, magnetic pole, wirerope form closed magnetic loop, and magnetic field is generated by magnet exciting coil, magnetic field
Size is controlled by the size of current of magnet exciting coil；
Bridge is formed between two magnetism gathering rings, the magnetic field signal that magnetism gathering rings are collected is detected by bridge by Hall element,
The output signal of Hall element can reach the voltage of A/D equipment identification range through the signal pre-processing circuit output on circuit board
Signal；The Tensity size of wirerope is obtained according to the size of voltage signal.
Using above-mentioned apparatus in the detection method not using as a servant steel wire rope tension and being detected, above method can be used,
Wirerope can also be allowed to be then passed through magnetic pole and bushing afterwards together in complete combination.
The beneficial effects of the utility model are as follows:
The utility model uses detachable design based on the steel wire rope tension detection device of Bypass Excitation mode, for in-service
Wirerope can be detected directly, and without stopping work, work interruption and lost revenue caused by avoiding because of detection.
When the utility model detects different-diameter wirerope, matched bushing and magnetism gathering rings are only needed to change, are reduced
Cost.
The utility model achieves that the artificial control of excitation intensity by adjusting the exciting current of magnet exciting coil, it is ensured that
Wirerope excitation intensity reaches just saturation state.
The utility model uses magnetism gathering rings, can completely be collected into the magnetic field signal by wirerope, improve detection
The accuracy of signal makes sensor only need two Hall elements that can realize the inspection to magnetic field signal by the design of bridge
It surveys, optimizes signal aliasing problem caused by Signal averaging excessive in follow-up signal pretreatment.
Portable power or the power supply of large volume variable-voltage power supply can be used in the utility model, and the sending of signal can be used wired
Wireless transmitter module can be added according to actual use situation, realize wireless transmission.
The utility model is small in size, is easy to dismount, be convenient for carrying, and is beneficial to detect the development of work.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the positive triaxial diagram of steel wire rope tension detection device based on Bypass Excitation mode；
Fig. 2 is the cross-sectional view of the steel wire rope tension detection device based on Bypass Excitation mode；
Fig. 3 is the side view of the steel wire rope tension detection device based on Bypass Excitation mode；
Fig. 4 is the signal pre-processing circuit of the steel wire rope tension detection device based on Bypass Excitation mode；
Description of symbols: 1 magnetic pole, 2 iron cores, 3 nylon sheets, 4 magnet exciting coils, 5 magnetism gathering rings, 6 magnetism gathering rings, 7 nylon bush,
8 magnetic poles, 9 Hall elements.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination；
In order to facilitate narration, if there is "upper", "lower", printed words in the utility model, only indicate with attached drawing itself it is upper,
Lower direction is consistent, does not play restriction effect to structure, it is only for convenient for description the utility model and simplify description, rather than
The equipment or element of indication or suggestion meaning must have a particular orientation, and be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.
As background technique is introduced, electromagnetic detection method is that current detection steel wire rope tension is widely used in the prior art
Method, occur many similar detectors in the market based on the method.It can be divided into according to the frame mode of excitation telescopic
Excitation and bypass type excitation, excitation effect needed for two kinds of excitation modes can reach detection.But it is used for having been put into
For wirerope, telescopic excitation hardly has practicability because being difficult for magnet exciting coil to be inserted in in-service wirerope.
And bypass type excitation need to be only connected by magnetic pole with wirerope just can reach excitation effect, therefore have more practicability.
In terms of magnetic structure, open type and closed type can be divided into, open type overall structure is simple, only magnet exciting coil and
Induction coil is constituted closed magnetic circuit using air as magnetic bridge, since air magnetic property is poor, cause magnetic circuit closure effect compared with
Difference, simultaneously because having the presence in more interference magnetic field in air, seriously affects so that wirerope excitation effect is poor
The signal-to-noise ratio for detecting signal causes testing result inaccurate.The ingot iron that closed type then uses magnetic conductivity very big is as magnetic bridge
Closed magnetic circuit is constituted, magnetic circuit turn-on effect is preferable, and the length and the intensity of magnetization for magnetizing uniform segment are all much larger than open type, Er Qieke
To play the role of shielded detector surrounding interferers, improve detection signal signal-to-noise ratio, therefore it is closed circuit when structural behaviour
It is more excellent.
In terms of the selection of excitation source, majority detector carries out excitation using permanent magnet at present, though permanent magnet is easy for installation
But does not have versatility, the lucky magnetic saturation of wirerope, and permanent magnetism can not be made according to the model change excitation intensity of wirerope
Body excitation stroke is shorter, and uniformity is poor, leads to the unstable of the magnetic induction intensity in wirerope, has seriously affected detection signal
Accuracy.High using coil magnetization stability, uniformity is good, and the size that need to only change electric current can be realized to different straight
The excitation of wire-diameter steel rope, therefore coil magnetization method has more versatility and practicability.
In main flux context of detection, many detectors all employ coil method at present, but for the steel used has been put into
Cord, coil needs field-winding, and winding effect is required to be uniformly distributed, and causes it with certain technical difficulty.Coil it is anti-
Multiple winding, reduces the service life of coil, sexual valence is relatively low.And Hall element is relatively easy for installation, it, only need to be without winding
XXX deficiency may be present in wirerope surface perimeter array arrangement, and in order to solve technical problem as above, present applicant proposes one kind
The steel wire rope tension detection device (subject name) of Bypass Excitation mode.
In a kind of typical embodiment of the application, as shown in Figure 1, the steel wire rope tension detection of Bypass Excitation mode
Device is mainly made of excitation mechanism, testing agency, circuit board three parts.
Excitation mechanism mainly includes magnet exciting coil 4, iron core 2, magnetic pole 1, and magnet exciting coil 4 is wrapped on iron core 2, and magnetic pole 1 is pacified
It is deducted marks at 2 both ends of iron core, magnetic pole 1 and wirerope contact surface and (is specifically shown in Fig. 1), it, will after steel wire penetrating magnetic pole
The upper cover deducted marks is mounted on magnetic pole.In this way, iron core, magnetic pole, wirerope form closed magnetic loop, magnetic field is given birth to by magnet exciting coil
At magnetic field size is controlled by the size of current of magnet exciting coil.Magnet exciting coil is using insulation enamel covered wire, identical excitation wire circle body
In the case of long-pending and exciting current, the diameter of copper wire is thinner, and excitation effect is better.Iron core and magnetic pole select the preferable work of magnetic property
Industry pure iron.To guarantee that the cross-sectional area of iron core and magnetic pole is both greater than or equal to wirerope sheet in entire magnetic loop in structure size
The cross-sectional area of body guarantees that excitation reaches the required magnetic efficiency of measurement.
Testing agency mainly includes Hall element 9, magnetism gathering rings 5, magnetism gathering rings 6, nylon bush 7.Magnetism gathering rings 5 and nylon bush
7 are all made of formula structure of deducting marks, and facilitate installation.Nylon bush is ladder half cylindrical structure, and magnetism gathering rings are embedded on nylon bush, when
When nylon bush is closed, magnetism gathering rings are also just closed, and wirerope passes through among nylon bush, and the magnetic field in wirerope is by poly- magnetic
Ring is collected.Spacing between a pair of of magnetism gathering rings 5 on nylon bush and magnetism gathering rings 6 is just the length scale of Hall element 9, this
Bridge is formed between two magnetism gathering rings of sample, Hall element 9 is placed among bridge, and the magnetic field signal that magnetism gathering rings are collected passes through bridge quilt
Hall element 9 detects that the output signal of Hall element can reach A/D through the signal pre-processing circuit output on circuit board and set
The voltage signal of standby identification range；Signal processing circuit is specifically as shown in Figure 4；
Using magnetism gathering rings, it can be completely collected into the magnetic field signal by wirerope, improve the accurate of detection signal
Property, make sensor only need two Hall elements that can realize the detection to magnetic field signal by the design of bridge, optimizes
Signal aliasing problem caused by excessive Signal averaging in follow-up signal pretreatment.
Magnetic pole top covers a nylon sheet 3, can place circuit board, power supply, indicator light etc. in nylon sheet 3.Circuit board
It is main to complete the functions such as magnet exciting coil power supply, detection circuit power supply, the pretreatment of hall element output signal.The power supply of circuit board
Power supply can be placed in nylon sheet, can also with the power supply unit of external large volume, but no more than circuit rated condition；Letter
Number sending can be used it is wired can also according to actual use situation be added wireless transmitter module, realize wireless transmission.
Shielded cable connection is all made of between magnet exciting coil, Hall element and circuit board, between shielded cable and circuit board
Using aviation plug connection so that it is convenient to which the connection of circuit, the signal output line of circuit board use signal shielding cable.
Hall element detection is magnetic signal, and detector at work, will avoid electrification, with magnetic and easy magnetic conduction device
It is close.When being powered using external voltage adjusting device, it is ensured that the stabilization of equipment supply voltage, in order to avoid lead to the shakiness for detecting signal
It is fixed.
Specifically, nylon bush 7 is made of upper semicylindrical nylon bush and lower semicylindrical nylon bush, each poly- magnetic
Ring is made of upper half magnetism gathering rings and lower half magnetism gathering rings, and upper half magnetism gathering rings are nested in upper semicylindrical nylon bush outer ring；Lower half is poly-
Magnet ring is nested in lower semicylindrical nylon bush outer ring；When two semi-cylindrical nylon bush are closed, the magnetism gathering rings are also rigid
Good closure, and the nylon bush rear space formed for steel wire penetrating closed together of two semi-cylindricals.
Specifically, magnetic pole includes upper and bottom section, upper portion magnetic pole and lower portion magnetic pole are connected to by connector
After together, the hole for steel wire penetrating is formed；Magnet exciting coil, iron core and upper semicylindrical nylon bush are mounted on part magnetic
On extremely；Lower semicylindrical nylon bush is mounted on lower portion magnetic pole；It is also provided with two through-holes on upper portion magnetic pole, is used for
Support the both ends of iron core 2；
The interface of the nylon bush of two semi-cylindricals and the interface of magnetic pole upper and lower part are in the same plane；
The nylon bush of upper semicylindrical is fixed on the upper part of magnetic pole, and the nylon bush of lower semicylindrical is fixed on the lower part of magnetic pole
Point.
Steel wire rope tension detection device uses above-mentioned detachable design, for can directly detecting for in-service wirerope, nothing
It needs to stop work, work interruption and lost revenue caused by avoiding because of detection.
The detection method detected using above-mentioned apparatus to in-service steel wire rope tension is as follows:
The upper part of magnetic pole is connected with the nylon bush of magnet exciting coil, iron core and upper semicylindrical, forms detector
Top half；The lower part of magnetic pole is connected with the nylon bush of lower semicylindrical；Form the lower half portion of detector；
The top half of the top half and active service wirerope that will test device cooperates, and will test lower half portion and the active service of device
The lower half portion of wirerope cooperates；Then two parts are connected by connector；
It is powered to magnet exciting coil, iron core, magnetic pole, wirerope form closed magnetic loop, and magnetic field is generated by magnet exciting coil, magnetic field
Size is controlled by the size of current of magnet exciting coil；
Bridge is formed between two magnetism gathering rings, the magnetic field signal that magnetism gathering rings are collected is detected by bridge by Hall element,
The output signal of Hall element can reach the voltage of A/D equipment identification range through the signal pre-processing circuit output on circuit board
Signal；The intensity size of wirerope is obtained according to the size of voltage signal.
Using above-mentioned apparatus in the detection method not using as a servant steel wire rope tension and being detected, above method can be used,
Wirerope can also be allowed to be then passed through magnetic pole and nylon bush afterwards together in complete combination.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (9)
1. a kind of steel wire rope tension detection device of Bypass Excitation mode, which is characterized in that by excitation mechanism, testing agency, circuit
Plate three parts composition；
The excitation mechanism mainly includes magnet exciting coil, iron core and magnetic pole, and the magnet exciting coil is wrapped on iron core, described
Magnetic pole is mounted on iron core both ends, and the through-hole for steel wire penetrating is equipped on the magnetic pole；
The testing agency is mounted on the lower section of excitation mechanism, mainly includes Hall element, two magnetism gathering rings, bushings, institute
The bushing both ends stated are fixed between two magnetic poles, and the inner ring of bushing is for steel wire penetrating；Two magnetism gathering rings are embedded in
Nylon bush outer ring, two magnetism gathering rings spacing are just the length scale of Hall element, form bridge, bridge between two magnetism gathering rings
Hall element is placed among road, the magnetic field signal that magnetism gathering rings are collected is detected by bridge by Hall element, the Hall member
Part is connected with signal processing circuit.
2. the steel wire rope tension detection device of Bypass Excitation mode as described in claim 1, which is characterized in that the magnetic pole packet
Upper and bottom section is included, after upper portion magnetic pole and lower portion magnetic pole are linked together by connector, formation is worn for wirerope
The hole crossed.
3. the steel wire rope tension detection device of Bypass Excitation mode as claimed in claim 2, which is characterized in that the bushing by
Upper semicylindrical bushing and lower semicylindrical bushing composition, each magnetism gathering rings are made of upper half magnetism gathering rings and lower half magnetism gathering rings, on
Half magnetism gathering rings are nested in upper semicylindrical bushing outer ring；Lower half magnetism gathering rings are nested in lower semicylindrical bushing outer ring；Two and half
When cylindrical bush is closed, the magnetism gathering rings are also just closed, and bushing rear formed closed together of two semi-cylindricals supplies
The space of steel wire penetrating.
4. the steel wire rope tension detection device of Bypass Excitation mode as claimed in claim 3, which is characterized in that the upper semi-circle
The interface of cylindrical liner and lower semicylindrical bushing and the interface of magnetic pole upper and lower part are in the same plane；Upper semi-circle
Cylindrical liner is fixed on the upper part of magnetic pole, and lower semicylindrical bushing is fixed on the lower part of magnetic pole.
5. the steel wire rope tension detection device of Bypass Excitation mode as described in claim 1, which is characterized in that the iron core
The cross-sectional area of cross-sectional area and magnetic pole through-hole is both greater than the cross-sectional area of wirerope itself.
6. the steel wire rope tension detection device of Bypass Excitation mode as described in claim 1, which is characterized in that the excitation wire
It encloses and uses insulation enamel covered wire, in the case of identical magnet exciting coil volume and exciting current, the thinner excitation effect of the diameter of copper wire
Better.
7. the steel wire rope tension detection device of Bypass Excitation mode as described in claim 1, which is characterized in that the iron core with
Magnetic pole selects the preferable ingot iron of magnetic property.
8. the steel wire rope tension detection device of Bypass Excitation mode as described in claim 1, which is characterized in that at the top of the magnetic pole
A nylon sheet is covered, places circuit board, power supply, indicator light in the nylon sheet；The circuit board mainly completes excitation
Coil power supply, testing agency's power supply, the pretreatment of hall element output signal.
9. the steel wire rope tension detection device of Bypass Excitation mode as claimed in claim 8, which is characterized in that the circuit board
Power supply be placed in nylon sheet or the power supply unit of external large volume, but no more than the rated condition of circuit；Institute
It is all made of shielded cable connection between magnet exciting coil, Hall element and the circuit board stated, is used between shielded cable and circuit board
The signal output line of aviation plug connection, circuit board uses signal shielding cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821696498.XU CN208872448U (en) | 2018-10-18 | 2018-10-18 | A kind of steel wire rope tension detection device of Bypass Excitation mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821696498.XU CN208872448U (en) | 2018-10-18 | 2018-10-18 | A kind of steel wire rope tension detection device of Bypass Excitation mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208872448U true CN208872448U (en) | 2019-05-17 |
Family
ID=66470431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821696498.XU Expired - Fee Related CN208872448U (en) | 2018-10-18 | 2018-10-18 | A kind of steel wire rope tension detection device of Bypass Excitation mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208872448U (en) |
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2018
- 2018-10-18 CN CN201821696498.XU patent/CN208872448U/en not_active Expired - Fee Related
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Granted publication date: 20190517 Termination date: 20191018 |