CN108203041A - Anomaly detector and method for detecting abnormality - Google Patents

Abstract

The present invention provides anomaly detector and method for detecting abnormality.The anomaly detector has fixed component,Installing component and multiple magnetizers,Magnetizer magnetizes a plurality of steel wire rope,Detect the variation of magnetic flux,Each magnetizer is integrally fixed by fixed component,Installing component is used for the part that each magnetizer that fixed part is integrally fixed is mounted on elevator,Each magnetizer has magnetic flux test section and sliding part,Magnetic flux test section includes a pair of magnets and sensor,In the width direction of steel wire rope there is scheduled gap each other and arrange,A pair of magnets vacates scheduled interval relative configuration on the moving direction of steel wire rope,The variation of the magnetic flux of steel wire rope that sensor detection has been magnetized by a pair of magnets,Sliding part is mounted on the surface of magnetic flux test section,The slip of guiding steel wire rope,A pair of magnets is configured in a manner that different magnetic poles is relative to each other,And it is configured in a manner that identical magnetic pole is adjacent to each other with a pair of magnets contained by adjacent magnetic flux test section.

Description

Anomaly detector and method for detecting abnormality

The application is with the Japanese patent application 2016-246781 (applyings date：12/20/2016) it is claimed priority based on.This Application includes all the contents of the application with reference to this application.

Technical field

The abnormal anomaly detector and exception that the rope that embodiments of the present invention relate to detection elevator generates are examined Survey method.

Background technology

The traction machine of main rope for linking car and counterweight is wound with generally about elevator, such as by driving, is made The car and counterweight makees elevating movement round about each other.

As the main rope in such elevator, using steel wire rope.Steel wire rope is will be by being referred to as strands (Japanese original text： Plain Line) the finer wire a plurality of twisted wire that is twisted and the is formed rope that is stranded in around the fibre core of central portion and forms.

However, for such elevator, the obligated maintenance management for performing steel wire rope.Generally maintenance personnel is taken to pass through mesh Fracture, the abrasion of observation strands are surveyed, so as to grasp the method for residual intensity, but the work of careful observation strands is not easy to, because This uses magnetic crack detection device to more quickly and accurately carry out detecting for the deterioration part to fracture, abrasion occurs.

Magnetic crack detection device is typically to magnetize steel wire rope by permanent magnet, detects the device of the variation of magnetic flux.Dimension Shield personnel judge whether the variation of the magnetic flux detected by magnetic crack detection device is the leakage from the magnetic flux for deteriorating part The variation of caused magnetic flux carries out determining for deterioration part.

Invention content

But the variation of magnetic flux, it, also can be by addition to the leakage due to the magnetic flux from deterioration part other than generating Movement (rocking) of steel wire rope etc. when measuring and generate.Therefore, maintenance personnel must the magnetic flux that detects of accurate judgement Variation whether be from deterioration part magnetic flux leakage caused by magnetic flux variation.This needs corresponding skilled journey It spends (experience, level).

The invention solves technical task, even being to provide the low maintenance personnel of qualification also can easily sentence The variation of the disconnected magnetic flux detected whether be magnetic flux caused by the leakage of the magnetic flux from deterioration part variation Anomaly detector and method for detecting abnormality.

The anomaly detector that embodiment is related to has fixed component, installing component and multiple magnetizers, the magnetizer Magnetizing a plurality of steel wire rope of elevator, detect the variation of magnetic flux, each magnetizer is integrally fixed by the fixed component, The installing component is used to each magnetizer being integrally fixed being mounted on one of the elevator by the fixed component Point, each magnetizer has magnetic flux test section and sliding part, and the magnetic flux test section includes a pair of magnets and sensor, The pair of magnet vacates scheduled interval relative configuration on the moving direction of the steel wire rope, and the sensor detection is by institute The variation of the magnetic flux for the steel wire rope that a pair of magnets has magnetized is stated, the magnetic flux test section is in the width direction of the steel wire rope On each other have scheduled gap and arrange, the sliding part be mounted on the magnetic flux test section surface, guide the steel The slip of cord, the pair of magnet are configured in a manner that mutually different magnetic pole is relative to each other, and with adjacent magnetic flux A pair of magnets contained by test section is configured in a manner that mutual same magnetic pole is adjacent to each other.

According to the anomaly detector of above structure, even the maintenance personnel that qualification is low, also can easily judge The magnetic flux detected variation whether be from deterioration part magnetic flux leakage caused by magnetic flux variation.

Description of the drawings

Fig. 1 is the figure for the installation position for representing anomaly detector of the first embodiment.

Fig. 2 is the stereogram for the structure for representing anomaly detector of the first embodiment.

Fig. 3 is the figure of the anomaly detector of the first embodiment from side.

Fig. 4 is the figure of anomaly detector of the first embodiment viewed from above.

Fig. 5 is the figure for illustrating to form the magnetizer of anomaly detector of the first embodiment.

Fig. 6 is the plan view of the anomaly detector of the first embodiment from steel wire rope side.

Fig. 7 is the stereogram for the structure for representing previous anomaly detector.

Fig. 8 is the figure of previous anomaly detector from side.

Fig. 9 is the figure of previous anomaly detector viewed from above.

Figure 10 is the plan view of previous anomaly detector from steel wire rope side.

Figure 11 is for the figure that previous anomaly detector illustrates magnetic density.

Figure 12 is the chart of the variation for the magnetic flux for representing to be detected by previous anomaly detector.

Figure 13 is for the figure that anomaly detector of the first embodiment illustrates magnetic density.

Figure 14 is the chart of the variation for the magnetic flux for representing to be detected by anomaly detector of the first embodiment.

Figure 15 is the stereogram of the anomaly detector of the second embodiment from face side.

Figure 16 is the stereogram of the anomaly detector of the second embodiment from back side.

Figure 17 is the figure of the anomaly detector of the second embodiment from side.

Figure 18 is the figure of anomaly detector of the second embodiment viewed from above.

Figure 19 is the chart of the variation for the magnetic flux for representing to be detected by anomaly detector of the second embodiment.

Specific embodiment

Hereinafter, embodiment is illustrated with reference to attached drawing.

[the 1st embodiment]

The anomaly detector (hereinafter referred to as " anomaly detector ") of elevator of the first embodiment, such as by more It is used during the maintenance test for the main rope that bar steel wire rope is formed.Furthermore each steel wire rope of main rope is formed, being will be by being referred to as line The rope that a plurality of twisted wire that the finer wire of material is twisted and is formed is stranded in around the fibre core of central portion and forms.

First, the installation position of anomaly detector of the present embodiment is briefly described with reference to Fig. 1.

About elevator, elevator control gear 11 is for example arranged in computer room (not shown), carries out the drive for including traction machine 12 The operation control of the elevator entirety of dynamic control.Traction machine 12 is supported on load-bearing girder steel 13, with elevator control gear 11 together In computer room.Main wheel (traction sheave) 14 is installed in the drive shaft of traction machine 12, master is wound in the peripheral part of the main wheel 14 Rope 15.One end of main rope 15 links with car 16, and the other end links with counterweight (C/W) 17.

Furthermore main rope 15 in Fig. 1, is expressed as a rope, but the main rope 15 is as described above for the sake of convenience It is made of a plurality of steel wire rope.

If based on elevator control gear 11 control and driving traction machine 12, the then main wheel 14 for being wound with main rope 15 revolve Turn, make bucket type elevating movement with the car 16 and counterweight 17 of the main rope 15 connection.

In the bottom of car 16 and counterweight 17, via 19 connection compensation rope 18 of compensation wheel.Compensation rope 18 is for eliminating The unbalanced rope as caused by the dead weight of main rope 15.

As shown in Figure 1, anomaly detector 20 of the present embodiment, the load-bearing girder steel being arranged on immediately below traction machine 12 13 and use.In the example depicted in figure 1, anomaly detector 20 is arranged between traction machine 12 and car 16, such as with sedan-chair The mode that compartment 16 declines makes in the case that elevator works, anomaly detector 20 carry out from the upper side to the lower side by main rope 15 Flaw detection, detection are abnormal.

Then, with reference to Fig. 2~Fig. 4, the structure of anomaly detector 20 is illustrated.Fig. 2 is to represent anomaly detector 20 Structure stereogram.Fig. 3 is the figure of the anomaly detector 20 from side.Fig. 4 is anomaly detector 20 viewed from above Figure.

As shown in Figure 2 to 4, anomaly detector 20 has a plurality of steel wire with forming the main rope 15 as flaw detection object 15a~15d quantity of restricting identical 4 magnetizers 21~24, two shaft members (fixed component) 25,26, suspension part (mounting portions Part) 27 and two stents 28,29.

About 4 magnetizers, specifically, the 1st magnetizer 21, the 2nd magnetizer 22, the 3rd magnetizer 23 and the 4th magnetizer 24, it is corresponding with the 1st~the 4th steel wire rope 15a~15d respectively.1st~the 4th magnetizer 21~24 is in the axial direction of shaft member 25,26 Gap is formed each other in (in other words as the width direction of steel wire rope) to be arranged in order.1st~the 4th magnetizer 21~24 is same Structure, therefore only the 1st magnetizer 21 is illustrated referring to Fig. 5.

1st magnetizer 21 is as shown in figure 5, be longer rectangular in the upper and lower directions (moving direction) of the 1st steel wire rope 15a Body shape is divided into two parts up and down inside the cuboid in the center of length (long side) side.A part of quilt among being divided into two Referred to as magnetic leakage flux test section 31 is longer rectangular-shape in the upper and lower directions of the 1st steel wire rope 15a.In leakage magnetic flux Measure test section 31 inside, vacate up and down it is scheduled be equipped at intervals with two permanent magnets 32a, 32b, these permanent magnets 32a, The detection coil 33 for the variation that can detect magnetic flux is equipped between 32b.

Two permanent magnets 32a, 32b are configured in a manner that mutual N poles and S are extremely opposite.That is, with permanent magnet The N poles of 32a and the S of permanent magnet 32b extremely with respect to and the S poles of permanent magnet 32a and the extremely opposite modes of the N of permanent magnet 32b Configuration.

Another part among being divided into two is referred to as illusory portion 34, is longer in the upper and lower directions of the 1st steel wire rope 15a Rectangular-shape.There is no any setting in the inside in illusory portion 34, in empty shape.

In the face opposite with the 1st steel wire rope 15a of leak flux test section 31, perforative rope slip portion up and down is formed 35.The 1st steel wire rope 15a can be stored in the rope slip portion 35, and guides the 1st steel wire rope 15a.Furthermore in leakage magnetic flux The side in test section 31 and illusory portion 34 is measured, is formed to make aftermentioned two shaft members 25,26 perforative two through holes, is had It is upside through hole 36a and downside through hole 36b for body.

There is the 1st magnetizer 21 formed as described above detection to be incorporated in the 1st steel wire rope in rope slip portion 35 The function for the exception (such as fracture of strands etc.) that 15a is generated.More specifically, the 1st magnetizer 21, which has, passes through leakage magnetic flux Two permanent magnets 32a, 32b in test section 31 are measured, magnetize the 1st steel wire rope 15a being incorporated in rope slip portion 35, It is detected caused by the magnetic flux revealed from the position of strands fracturing (hereinafter referred to as " magnetic leakage flux ") by detection coil 33 The function of the variation of magnetic flux.

Turn again to the explanation of Fig. 2~Fig. 4.1st~the 4th magnetizer 21~24 is with each leak flux test section 31 in axis Each other there is mode adjacent with gap to arrange in the axial direction of component 25,26.More specifically, the 1st~the 4th magnetizer 21~24 The magnetic pole of permanent magnet 32a, 32b for being included with magnetic leakage flux test section 31 are included with adjacent leak flux test section 31 The magnetic pole of permanent magnet 32a, 32b be each the mode of homopolarity and arrange.The state is shown in Fig. 6.

Fig. 6 is the plan view of the 1st~the 4th magnetizer 21~24 from steel wire rope side.As shown in fig. 6, the 1st~the 4th magnetic The magnetic pole of permanent magnet 32a, 32b that change device 21~24 is included with each leak flux test section 31 and adjacent leak flux The mode that the magnetic pole of permanent magnet 32a, 32b that test section 31 includes are each homopolarity arranges.

Turn again to the explanation of Fig. 2~Fig. 4.About two shaft members, specifically, upside shaft member 25 and downside axle portion Part 26 runs through the upside through hole 36a of the 1st~the 4th magnetizer 21~24 and downside through hole 36b.That is, the 1st~the 4th Magnetizer 21~24 is integrally fixed by upside shaft member 25 and lower side shaft part 26.Furthermore upside shaft member 25 and lower side axle At least both ends of component 26 nearby become threaded portion.That is, about upside shaft member 25 and lower side shaft part 26, it can be only Both ends nearby become threaded portion, can also integrally be set as screw thread.

Suspension part 27 be configured the back side of the 1st~the 4th magnetizer 21~24 (in other words as with equipped with rope slip portion 35 The opposite face in face) side.Suspension part 27, which is formed as downside, has the U-shaped of opening portion, so that the 1st~the 4th magnetizer 21~ 24 can be moved forward and backward.(in other words as the face opposite with the opening portion of U-shaped) above suspension part 27, formation is used for will Anomaly detector 20 is set to the through hole (suppending hole) 41 of load-bearing girder steel 13.In addition, in the two sides of suspension part 27, it is each to be formed For by aftermentioned stent 28, fixed two screw holes (not shown) of 29 bolts.

About two stents, specifically, the 1st stent 28 and the 2nd stent 29 are respectively arranged at the 1st magnetizer 21 and the 4th Magnetizer 24 it is axially external.1st stent 28 and the 2nd stent 29 are in the upper and lower directions of the 1st~the 4th steel wire rope 15a~15d Longer rectangular plate.

In the 1st stent 28, it is formed with to make upside 26 perforative through hole of shaft member 25 and lower side shaft part up and down 51a、51b.Furthermore these through holes 51a, 51b are formed as slot hole longer on width (short side) direction of the 1st stent 28, So that the 1st~the 4th steel wire rope 15a~15d can follow front and rear movement (in other words as 21~24 energy of the 1st~the 4th magnetizer It is enough to be moved forward and backward).

The through hole 51a from the upside for being formed in the 1st stent 28 to the upside shaft member 25 of axially external protrusion and from The through hole 51b of the downside of the 1st stent 28 is formed in the lower side shaft part 26 of axially external protrusion, is respectively formed with screw thread Portion can be tightened the 1st magnetizer 21 to axially inner side by installing the 61, the 1st stent 28 of nut in these threaded portions.As a result, 1st~the 4th magnetizer 21~24 is integrally fixed with the 1st stent 28.Furthermore nut 61 is loosely installed, so that energy Enough follow the movement (can be moved left and right in other words as the 1st~the 4th magnetizer 21~24) of the left and right of steel wire rope 15a~15d.

In addition, it is formed with and corresponding two through holes (not shown) of the threaded hole of suspension part 27 in the 1st stent 28.Spiral shell Bolt 62 runs through the through hole, is fastened with the bolt hole bolt of suspension part 27,27 and the 1st stent 28 of suspension part is thus made to be fixed into one Body.

In the 2nd stent 29, it is formed with to make upside shaft member 25 and lower side shaft part up and down in the same manner as the 1st stent 28 26 perforative through hole 51a, 51b.Furthermore these through holes 51a, 51b are formed as in width (short side) direction of the 2nd stent 29 On longer slot hole so that the 1st~the 4th steel wire rope 15a~15d can follow front and rear movement.

The through hole 51a from the upside for being formed in the 2nd stent 29 to the upside shaft member 25 of axially external protrusion and from The through hole 51b of the downside of the 2nd stent 29 is formed in the lower side shaft part 26 of axially external protrusion, is respectively formed with screw thread Portion can be tightened the 4th magnetizer 24 to axially inner side by installing the 61, the 2nd stent 29 of nut in these threaded portions.As a result, 1st~the 4th magnetizer 21~24 is integrally fixed with the 2nd stent 29.Furthermore nut 61 is loosely installed, so that energy Enough follow the movement of the left and right of steel wire rope 15a~15d.

In addition, in the 2nd stent 29, it is identically formed with the 1st stent 28 corresponding not with the threaded hole of suspension part 27 Two through holes of diagram.Bolt 62 runs through the through hole, is fastened with the threaded hole bolt of suspension part 27, thus makes suspension part 27 It is integrally fixed with the 2nd stent.

The anomaly detector 20 formed as above, setting as described above are used in load-bearing girder steel 13.In more detail and Speech, anomaly detector 20 via suspension part 27 by fixing (suspension) in being set using in support plate (not shown), the branch Fagging is configured to be positioned across pair of right and left load-bearing girder steel 13, side of the pair of load-bearing girder steel 13 to be separated from each other and extend in parallel Formula is set.

Here, anomaly detector 20 and Fig. 7 of the present embodiment~anomaly detector shown in Fig. 10 100 is carried out Compare, to being illustrated by the effect that present embodiment obtains.Fig. 7 be represent previous anomaly detector 100 structure it is vertical Body figure.Fig. 8 is the figure of the anomaly detector 100 from side.Fig. 9 is the figure of anomaly detector 100 viewed from above.Figure 10 is The plan view of the 1st~the 4th magnetizer 21~24 of anomaly detector 100 is formed from steel wire rope side.Fig. 7~shown in Fig. 10 The anomaly detector 100 of structure, in the 1st~the 4th magnetizer 21~24 with the leakage magnetic of the 1st~the 4th magnetizer 21~24 of composition On this point flux test section 31 arranges as the mode of interconnected (staggered arrangement), with this embodiment party The anomaly detector 20 that formula is related to is different.

In the anomaly detector 100 of Fig. 7~structure shown in Fig. 10, in order to make that leak flux test section 31 includes two A permanent magnet 32a, 32b, two permanent magnets 32a, the 32b included with another leak flux test section 31 are not interfere with each other, 1st~the 4th magnetizer 21~24 arranges in a manner that leak flux test section 31 becomes interconnected.Thus, it is possible to obtain down State advantage：Due to two permanent magnets 32a, 32b that leak flux test section 31 includes and another leak flux test section 31 two permanent magnets 32a, 32b included will not generate interference, therefore can inhibit the variation of the magnetic flux with magnetic disturbance The generation of (noise signal).

But in the anomaly detector 100 of Fig. 7~structure shown in Fig. 10, due to being detected merely with 1 leak flux Two permanent magnets 32a, 32b that portion 31 includes make 1 steel wire rope magnetization, therefore as shown in figure 11, magnetic density becomes dilute It dredges.That is, the caused leak flux of exception that steel wire rope generates also becomes a small amount of, the variation of magnetic flux reduces, because This is as shown in figure 12, it may occur that is difficult to judge by the variation (anomaly detection signal) of abnormal caused magnetic flux and by steel wire rope Movement (rocking) generate magnetic flux variation (noise signal) as unfavorable condition.

In contrast, in anomaly detector 20 of the present embodiment, the 1st~the 4th magnetizer 21~24 is to reveal magnetic The permanent magnetic that the magnetic pole of permanent magnet 32a, 32b that flux test section 31 includes are included with adjacent leak flux test section 31 The mode that the magnetic pole of body 32a, 32b become homopolarity arranges.Although in this way, two included due to leak flux test section 31 forever Two permanent magnets 32a, 32b that long magnet 32a, 32b are included with adjacent another leak flux test section 31 are interfered, And the variation (noise signal) of the magnetic flux with magnetic disturbance is generated, but advantages below can be obtained.

In anomaly detector 20 of the present embodiment, for 1 steel wire rope, the magnetizer for storing the steel wire rope is utilized Leak flux test section 31 permanent magnet 32a, 32b for including and 1 adjacent with the leak flux test section 31 or Permanent magnet 32a, 32b that two leak flux test sections 31 include make its magnetization, therefore as shown in figure 13, magnetic density Become close.That is, the caused leak flux of exception that steel wire rope generates increases, the variation of magnetic flux, which also increases, (changes speech Improved for whole detection output, detection peak also improves), therefore as shown in figure 14, easily determine by abnormal caused magnetic flux The variation of amount and with magnetic disturbance magnetic flux variation or by steel wire rope mobile generation magnetic flux variation.

The 1st embodiment from the description above, anomaly detector 20 have what is included with leak flux test section 31 The magnetic pole of permanent magnet 32a, 32b that the magnetic pole of permanent magnet 32a, 32b and adjacent leak flux test section 31 include that The the 1st~the 4th magnetizer 21~24 that this mode for becoming homopolarity arranges.Therefore, it is possible to make to be incorporated in rope slip portion 35 The magnetic density of steel wire rope 15a~15d becomes close.

In this way, it as described above, can increase the leak flux revealed due to the exception that steel wire rope 15a~15d is generated It is more, increase the variation (improving detection peak) of magnetic flux.Therefore, maintenance personnel can easily judge the magnetic flux quantitative change detected Change whether be from deterioration part magnetic flux leakage caused by magnetic flux variation.

Furthermore in present embodiment, the example for being 4 to the steel wire rope for forming main rope 15 is illustrated, but forms It's not limited to that for the quantity of the steel wire rope of main rope 15.Therefore, the quantity for forming the magnetizer of anomaly detector 20 is also unlimited It is set to 4.

In addition, anomaly detector 20 of the present embodiment, due to will not reveal magnetic as anomaly detector 100 Flux test section 31 is interconnected, therefore can be set as the structure that the illusory portion 34 for forming magnetizer is omitted.Alternatively, also may be used To be the structure that illusory portion 34 is substituted for leak flux test section 31.In this case, following advantages can be obtained：Due to letting out The distance between two permanent magnets 32a, 32b that dew magnetic flux test section 31 includes about become 2 times, magnetic flux detectable The range of variation expands, therefore can shorten flaw detection the time it takes of main rope 15.In addition, as noted previously, as leakage The distance between two permanent magnets 32a, 32b that magnetic flux test section 31 includes are elongated, therefore detection output reduces slightly, but It is that S/N ratios improve, can more easily judges by the variation of abnormal caused magnetic flux.

[the 2nd embodiment]

Then, with reference to Figure 15~Figure 18, the 2nd embodiment is illustrated.In the present embodiment, in each magnetizer 21 It is different from the 1st embodiment when gap is formed between~24 on this point of setting separator.In addition, in the 1st embodiment, it is The movement of each steel wire rope 15a~15d is followed, each magnetizer 21~24 is configured to all around to move, but this embodiment party In formula, in the movement for not following each steel wire rope 15a~15d, each magnetizer 21~24 is configured to all around move this It is different from the 1st embodiment on point.

Furthermore in the following description, same tag is attached to for the structure identical with the 1st embodiment, and omits it in detail It describes in detail bright.

Figure 15 is the stereogram of the anomaly detector 20 of the second embodiment from face side.Figure 16 is from the back side Observe the stereogram of anomaly detector 20 in side.Figure 17 is the figure of the anomaly detector 20 from side.Figure 18 is viewed from above The figure of anomaly detector 20.

About the anomaly detector 20 shown in Figure 15~Figure 18, it is not provided in the side of the 1st and the 4th magnetizer 21,24 Stent 28,29, the separator 71a that the interval between each magnetizer 21~24 between setting and each steel wire rope 15a~15d is suitble to ~71c, in upside, the both ends of shaft member 25 and lower side shaft part 26 are equipped with nut 61.The width of separator 71a~71c (length of the width direction of steel wire rope) is determined according to the interval between each steel wire rope 15a~15d.Furthermore nut 61 fastens Ground is installed, so that the movement of the left and right of each steel wire rope 15a~15d is not followed, in other words as the 1st~the 4th magnetizer 21 of inhibition ~24 movement to the left and right.

In addition, in anomaly detector 20 of the present embodiment, fastening part 72 is set to replace suspension part 27.Fastening part 72 are formed as L-shaped shape, in the face opposite with the 1st~the 4th magnetizer 21~24 (in other words as the upper and lower directions along steel wire rope The face of extension) form the (not shown) through hole identical with magnetizer quantity.Bolt 73 runs through the through hole, and bolt is fastened on The back side in each illusory portion 34 of the 1st~the 4th magnetizer 21~24 is formed, thus the 1st~the 4th magnetizer 21~24 and fastening part 72 It is integrally fixed.

In addition, from the face opposite with the 1st~the 4th magnetizer 21~24 along horizontal direction (in other words as with steel wire rope The orthogonal direction of upper and lower directions) extension face, form the through hole (fastener hole) 74 for being arranged on load-bearing girder steel 13.Do not scheme The bolt-through shown the through hole 74, nut (not shown) are closely fitted to the top of the bolt, so as to be fixed on load-bearing girder steel 13, the movement that thus, it is possible to the 1st~the 4th magnetizer 21~24 is inhibited to control forwards, backwards.That is, the 1st~the 4th magnetizer 21~24 becomes The movement all around of each steel wire rope 15a~15d can not be followed by obtaining.

Anomaly detector 20 of the present embodiment, by fixing (mounting) in support (not shown) via fastening part 72 Be set using on plate, the support plate is configured to be positioned across pair of right and left load-bearing girder steel 13, the pair of load-bearing girder steel 13 with The mode for being separated from each other and extending in parallel is set.

It, can not be with although the 1st~the 4th magnetizer 21~24 can be generated according to the anomaly detector 20 formed as above With unfavorable factor as the movement of each steel wire rope 15a~15d, but advantages below can be obtained.

Anomaly detector 20 of the present embodiment, as described above, between each steel wire rope 15a~15d Every suitable separator 71a~71c, securely fixed by nut 61 from the side of the 1st and the 4th magnetizer 21,24, therefore It can inhibit the movement (rocking) of steel wire rope in the lateral direction in flaw detection.In addition, about the anomaly detector 20, L-shaped shape Fastening part 72 be fixed on the back side of the 1st~the 4th magnetizer 21~24, and fasten and link with load-bearing girder steel 13, therefore also can The movement of enough steel wire ropes inhibited in flaw detection forward and backward.I.e. it is capable to inhibit by the shifting of each steel wire rope 15a~15d The variation (noise signal) of magnetic flux caused by dynamic.

In general, the variation of magnetic flux is accordingly larger as caused by the movement of each steel wire rope 15a~15d, so as to be difficult to judge The variation of magnetic flux caused by leak flux from deterioration part.But by inhibiting by each steel wire rope 15a~15d Movement caused by magnetic flux variation, the caused magnetic flux of exception of steel wire rope generation can be only detected by anomaly detector 20 The variation of amount and the variation of the magnetic flux as caused by magnetic disturbance.Therefore, as shown in figure 19, it can more easily judge steel wire rope The variation (anomaly detection signal) of the caused magnetic flux of the exception of generation.

The 2nd embodiment from the description above, what the movement that anomaly detector 20 has left and right forwards, backwards was inhibited by 1st~the 4th magnetizer 21~24.Therefore, it is possible to inhibit the magnetic flux as caused by the movement of the 1st~the 4th steel wire rope 15a~15d Variation, maintenance personnel can more easily judge the magnetic flux detected variation whether be from deterioration part magnetic flux Leakage caused by magnetic flux variation.

At least one embodiment from the description above, even being capable of providing the low maintenance personnel of qualification, Can easily determine the magnetic flux change detected whether be from deterioration part magnetic flux leakage caused by magnetic flux Variation anomaly detector and method for detecting abnormality.

Furthermore several embodiments of the invention are described, but these embodiments are intended only as illustrating, not Intended limitation the scope of the present invention.These new embodiments can by it is other it is various in a manner of implement, this hair can not departed from Various omissions, substitutions and changes are carried out in the range of bright purport.These embodiments and modifications thereof are included in the present invention's In scope and spirit, and it is contained in the invention recorded in the scope of the claims and the range impartial with it.

Claims (5)

1. a kind of anomaly detector, which is characterized in that

Have fixed component, installing component and multiple magnetizers,

The magnetizer magnetizes a plurality of steel wire rope of elevator, detects the variation of magnetic flux,

Each magnetizer is integrally fixed by the fixed component,

The installing component is used to each magnetizer being integrally fixed by the fixed component being mounted on the elevator A part,

Each magnetizer has magnetic flux test section and sliding part,

The magnetic flux test section includes a pair of magnets and sensor,

The pair of magnet vacates scheduled interval relative configuration on the moving direction of the steel wire rope,

Sensor detection by the variation of the magnetic flux of the pair of magnet magnetized steel wire rope,

The magnetic flux test section in the width direction of the steel wire rope has scheduled gap and arranges each other,

The sliding part is mounted on the surface of the magnetic flux test section, guides the slip of the steel wire rope,

The pair of magnet is configured in a manner that mutually different magnetic pole is relative to each other, and with adjacent magnetic flux test section institute The a pair of magnets contained is configured in a manner that mutual same magnetic pole is adjacent to each other.

2. anomaly detector according to claim 1, which is characterized in that

The multiple separators being arranged between each magnetizer are also equipped with,

The width of each separator is determined according to the interval between each steel wire rope.

3. anomaly detector according to claim 1, which is characterized in that

The installing component is fixed on the back side of each magnetizer, and is tightening and linked in a part for the elevator, so as to The movement that each magnetizer is inhibited to control forwards, backwards.

4. anomaly detector according to claim 3, which is characterized in that

The installing component inhibits each magnetizer to be moved to the front-rear direction orthogonal with the moving direction of the steel wire rope, and And each magnetizer is inhibited to be moved to width direction, that is, left and right directions of the steel wire rope.

5. a kind of method for detecting abnormality is the method for detecting abnormality applied to anomaly detector,

The anomaly detector has fixed component, installing component and multiple magnetizers,

The magnetizer magnetizes a plurality of steel wire rope of elevator, detects the variation of magnetic flux,

Each magnetizer is integrally fixed by the fixed component,

The installing component is used to each magnetizer being integrally fixed by the fixed component being mounted on the elevator A part,

Each magnetizer has magnetic flux test section and sliding part,

The magnetic flux test section includes a pair of magnets and sensor,

The pair of magnet vacates scheduled interval relative configuration on the moving direction of the steel wire rope,

Sensor detection by the variation of the magnetic flux of the pair of magnet magnetized steel wire rope,

The magnetic flux test section in the width direction of the steel wire rope has scheduled gap and arranges each other,

The sliding part is mounted on the surface of the magnetic flux test section, guides the slip of the steel wire rope,

The method for detecting abnormality is characterized in that,

The pair of magnet is configured in a manner that mutually different magnetic pole is relative to each other, and with adjacent magnetic flux test section institute The a pair of magnets contained is configured in a manner that mutual same magnetic pole is adjacent to each other.