Embodiment 1
Fig. 1 is the figure of the structure of the elevator rope life diagnosis device that embodiments of the present invention 1 are shown.
In addition, also show 2:1 wiring than elevator, it is an example of the elevator of the rope had as life diagnosis object.
2:1 wiring is such as made up of towing machine 101, deflector sheave 102, counterweight hanging wheel 103, car hanging wheel 104, counterweight 105, car 106, control cable 107, main rope 108 and elevator control gear 1 than elevator.Main rope 108 is the ropes as life diagnosis object.In addition, the main rope of many elevators is set usually, in the present invention many main ropes is described as main rope 108.
Elevator control gear 1 corresponds in car 106 and/or stop such as to press the button at the operation, and control 2:1 wiring makes car 106 move than elevator.Elevator control gear 1 is connected by controlling cable 107 with 2:1 wiring each inscape than elevator.
Movement history recording memory cell 1a is located at elevator control gear 1, (such as makes car 106 from 1 layer to 3 layers movement for the movement history recording data stored when making car 106 move.Then, make it from 3 layers to 6 layers movement), be such as made up of semiconductor memory etc.
These 2:1 wirings usually possess, in this detailed than each inscape of elevator in existing elevator.
Elevator rope life diagnosis device 2 is made up of pulley number of pass times calculating unit 2a, elevator specification memory cell 2b, impairment grade calculating unit 2c, Overlapping display unit 2d, diameter value estimation unit 2e, life estimation unit 2f, diameter value memory cell 2g and read out instrument 3.In addition, read out instrument 3 is made up of elevator simulation image-display units 3a and screen operation unit 3b.
Pulley number of pass times calculating unit 2a, according to the movement history recording data be stored in movement history recording memory cell 1a and the specification data be stored in elevator specification memory cell 2b, calculates pulley number of pass times (accumulative number of bends) and the number of bends details thereof of each rope position.Result of calculation becomes the matrix data shown in (a) of such as Fig. 2.In (a) of Fig. 2, key element (the D: rope diameter on right side from the 3rd row, d: diameter of pulley) D/d ratio (40), D/d ratio (36), S sigmoid, pulley groove (U-shaped), pulley groove (V shape)) be number of bends details, it is alternatively the number of bends according to often kind of feature of pulley.
Elevator specification memory cell 2b is stored as the diameter of pulley of the elevator of diagnosis object, pulley number, rope overall length, rope number, rope diameter, the shape of pulley groove, lifting travel, interfloor distance and pulley setting direction equal-specification data.
Specification data input to elevator specification memory cell 2b is that the screen operation unit 3b possessed from read out instrument 3 carries out.Or, the not shown input block (keyboard etc.) of elevator rope life diagnosis device 2 also can be used to input, data can also be read with the DataBase combining on not shown network.Like this, in elevator specification memory cell 2b, specification data is set in advance.
Impairment grade calculating unit 2c, by the specification data be stored in elevator specification memory cell 2b, the multiplication of the number of bends details of each rope position that calculates with pulley number of pass times calculating unit 2a, calculates impairment grade thus.The pulley number of pass times of each rope position shown in (a) of result of calculation and Fig. 2 and number of bends details thereof become the matrix data shown in (b) of such as Fig. 2 in the lump.
The shape of the bending direction of D/d ratio, main rope 108, pulley groove is had, by measuring the rope tension (ropetension) obtained in addition by the example of the data used as coefficient in specification data.
Use these coefficients, calculate impairment grade according to the formula (1) such as.
Using with D/d than corresponding coefficient as a in formula (1).
Using the coefficient corresponding with the bending direction of main rope 108 as the b in formula (1).
About the bending direction of rope, Fig. 7 is used to be described.Illustrate in (a), (b) of Fig. 7 from orthogonal both direction and observed two pulleys of upper/lower and the figure respectively in time hanging over the rope these pulleys.Example when (a) of Fig. 7 is rope generation S sigmoid, when with from seem during top view upper sheave 7a and lower pulley 7b in transversely arranged mode arrange, when the angle of the bending direction of the rope 7c formed by the position relationship based on these two pulleys of upper sheave 7a and lower pulley 7b is set to A, A is 180 °.Equally, (b) of Fig. 7 is the example of rope when not producing S sigmoid, when arranging in the mode hiding lower pulley 7e from upper sheave 7d during top view upper sheave 7d and lower pulley 7e, the angle A of the bending direction of the rope 7c that the position relationship based on upper sheave 7d and lower pulley 7e is formed is 0 °.Be judged to when not being 0 ° by the angle A that formed at this position relationship based on pulley to produce S sigmoid, S sigmoid number of times thus shown in (a) of Fig. 2 and (b) of Fig. 2 is determined, and the coefficient corresponding to angle A is set as b.
In addition, the example of elevator is used to further illustrate the bending direction of rope.
Consider the rope 8i elevator that mobile car 8h thus advances up and down by pulley 8a ~ 8g as shown in (a) of Fig. 8.
(b), (c) of Fig. 8 be from directly over observe the figure of the elevator of (a), respectively illustrate different pulleys and state be set.In addition, in (c) for convenience's sake, pulley 8c and 8d is depicted as a pulley 8c.In (b) of Fig. 8, the pulley 8b of car 8h bottom with make rope 8i along east-west direction pass through towards arranging, the pulley 8c on top is then arranged in the mode making rope 8i pass through along North and South direction.In this case, the angle of the bending direction of rope 8i is 90 °.In (c) of Fig. 8, the pulley 8c on top is arranged in the mode towards inclination 225 ° of the pulley 8b relative to car 8h bottom, and the angle of the bending direction of rope 8i is now 225 °.
That is, the bending direction of rope can become from directly over observe elevator time the pulley setting direction (the pulley angulation of upper/lower) of adjacent upper/lower.
Or, also can using the angle of neutral angle formed by the position contacted with upper sheave in rope cross section (circle) and the position contacted with lower pulley as the bending direction of rope.If (a) of Fig. 7, then the position contacted with upper sheave 7a in rope 7c surface and the position contacted with lower pulley 7b form neutral angle 180 ° in rope cross section (circle).Equally, if (b) of Fig. 7, then the position contacted with upper sheave 7a in rope 7c surface and the position contacted with lower pulley 7b are same area, in rope cross section (circle), form neutral angle 0 °
Using the c of the coefficient corresponding with the shape of pulley groove as formula (1).The shape of pulley groove has the V shape groove shown in (a) and the U-shaped groove shown in (b) as shown in Figure 9, determines the value of c respectively according to the difference of shape.
Using the d of the coefficient corresponding with rope tension as formula (1).Measure rope tension by not shown known determination unit, such as using its measurement result as coefficient d.
Use coefficient a ~ d as above, calculate the impairment grade (x) of rope position x according to formula (1) below.The scope of x is from 0 to rope lengths and X.In fig. 2, using the unit of rope lengths X as " mm ", x is illustrated as the integer of more than 0 below X.
Impairment grade (x)=number of bends details (x) × (a+b+c+d)
[0≤x≤X]…(1)
If x=5 illustrates the calculating of above-mentioned formula (1).
As shown in (a) of Fig. 2, number of bends details (5) are, it is 1 time at the number of bends at the pulley place of D/d ratio (40), it is 2 times at the number of bends at the pulley place of D/d ratio (36), S sigmoid is 1 time, being 2 times at the number of bends at pulley groove (U-shaped) place, is 1 time at the number of bends at pulley groove (V shape) place.
First, for the number of bends (1 time) at the pulley place at D/d ratio (40), above-mentioned a, b, c, d are set as suitable value respectively, obtain the value of 1 × (a+b+c+d).If this value is S1.
Then, for the number of bends (2 times) at the pulley place at D/d ratio (36), above-mentioned a, b, c, d are set as suitable value respectively, obtain the value of 2 × (a+b+c+d).If this value is S2.
Then, for the number of bends (2 times) at the pulley place at pulley groove (U-shaped), above-mentioned a, b, c, d are set as suitable value, obtain the value of 2 × (a+b+c+d).If this value is S3.
Then, for the number of bends (1 time) at the pulley place at pulley groove (V shape), above-mentioned a, b, c, d are set as suitable value, obtain the value of 1 × (a+b+c+d).If this value is S4.
In addition, the S sigmoid in number of bends details, on the impact of impairment grade, is included in the value of the coefficient b determined according to rope angle of bend.
Further, the summation of the above-mentioned value S1 ~ S4 obtained becomes the impairment grade (5) of rope position x=5.
In addition, the above-mentioned formula (1) of impairment grade calculating unit 2c also can calculate the passengers quantity (weight) when moving according to the twisting mode of the rope as known technology and elevator and the rope tension changed is included in the impairment grade in coefficient.
Overlapping display unit 2d sets elevator simulation image-display units 3a, make in the elevator simulation image 301 shown at the elevator simulation image-display units 3a of read out instrument 3, according to the impairment grade calculated by impairment grade calculating unit 2c, carry out color separation display according to each rope position of the main rope 108 on elevator simulation image 301.
Further, elevator simulation image-display units 3a is set, make, according to the diameter estimated valve calculated by diameter value estimation unit 2e, to carry out color separation display to main rope 108 part on elevator simulation image 301 according to each rope position.
Further, elevator simulation image-display units 3a being set, making to carry out for notifying that the display of the life diagnosis result 302 in period changed by the rope calculated by life estimation unit 2f.
In addition, the various information relevant with the life-span of rope such as impairment grade and/or diameter estimated valve are called rope information.
Diameter value estimation unit 2e, according to the impairment grade of surveying rope diameter value and calculated by impairment grade calculating unit 2c, estimates the rope diameter value of the rope position except the rope position of surveying out rope diameter value.
Life estimation unit 2f obtains the slope calculated according to the minimum value from the diameter value data under the date-time of more than 2 of diameter value memory cell 2g, during prediction reaches the rope diameter value (in Japanese architecture basic taper method, referring to less than 96% of rope nominal diameter) preset.
Further, according to the predictive period calculated, calculate rope and change period.
Diameter value memory cell 2g using the diameter estimated valve exported by diameter value estimation unit 2e with by measuring the actual measurement rope diameter value that obtains as diameter value data, and stores according to the date/time that data export.
In addition, diameter value memory cell 2g both can be located in elevator rope life diagnosis device 2, also can be located at elevator rope life diagnosis device 2 by not shown network outside.
The elevator simulation image-display units 3a of read out instrument 3 is according to the pulley footpath be stored in elevator specification memory cell 2b, pulley number, lifting travel, interfloor distance equal-specification data, and using simulating, to be presented at the picture of read out instrument 3 as shown in Figure 3 as the image of the elevator of diagnosis object and elevator simulation image 301 (not shown in FIG.Liquid crystal panel or organic EL panel etc.) on.
Further, the display of color separation display and life diagnosis result 302 is carried out in the color separation setting of the main rope 108 on the elevator simulation image 301 of specifying according to Overlapping display unit 2d.
Further, read out instrument 3 both can be the maintenance portable terminal device that upkeep operation personnel carry, and also can be the fixed terminal that upkeep operation personnel use in office, can also be the remote monitoring services device by network collection state of elevator.
Screen operation unit 3b is mouse etc., for operating by the car 106 in the elevator simulation image 301 of elevator simulation image-display units 3a display and/or counterweight 105, pulley etc.Utilizing known image processing techniques, when the car 106 on elevator simulation image 301 and/or counterweight 105, pulley etc. being moved by screen operation unit 3b, show in the mode making the position of main rope 108 and this action carry out movement in linkage, the action of each mechanism of simulant elevator can carry out visual confirmation thus.If read out instrument 3 adopts touch-sensitive display, then screen operation unit 3b also can be finger or pointer etc.
Further, screen operation unit 3b is also using in the input of elevator specification memory cell 2b and the data input of elevator rope determined diameter and measurement site etc.
The action of the elevator rope life diagnosis device 2 formed like this is described.
Have the 2:1 wiring as the rope of life diagnosis object than in elevator, when car 106 moves, movement history recording data are stored in be located in the movement history recording memory cell 1a of elevator control gear 1.
Pulley number of pass times calculating unit 2a is connected with wired or wireless mode with elevator control gear 1, reads the movement history recording data accumulated from the movement history recording memory cell 1a in elevator control gear 1.Further, read the specification data be stored in elevator specification memory cell 2b, according to movement history recording data and specification data, calculate pulley number of pass times and the number of bends details thereof of each rope position.These are such as the data illustrated in Fig. 2 (a) as mentioned above.
Then, pulley number of pass times and the specification data be stored in elevator specification memory cell 2b of each rope position that impairment grade calculating unit 2c exports according to pulley number of pass times calculating unit 2a, calculate the impairment grade of each rope position according to the above.These are such as the data illustrated in Fig. 2 (b) as mentioned above.
Then, diameter value estimation unit 2e, according to the impairment grade of surveying rope diameter value and calculated by impairment grade calculating unit 2c, estimates the rope diameter value of the rope position except the rope position of surveying out rope diameter value.Use Fig. 4 to be described as an example, suppose the actual measurement rope diameter value at X1 place, rope position be φ 1, the impairment grade at X1 place, rope position that calculates of impairment grade calculating unit 2c is R1.In addition, survey rope diameter value to be transfused to by screen operation unit 3b after by actual measurements such as upkeep operation personnel.
On the other hand, suppose be positioned at hand touch less than scope and the impairment grade at the X2 place, rope position that can not survey is R2, then can estimate the diameter value φ 2 at X2 place, rope position according to φ 2=(k × φ 1 × R2)/R1 (k is constant).
Fig. 5 shows each key element shown in (b) of Fig. 2 and rope tension in the lump.The right column of Fig. 5 is the diameter value data be made up of the diameter estimated valve of diameter value estimation unit 2e output and measured value.The actual measurement rope diameter value (9.9) that described diameter value data have such as been transfused to the position of the rope position 4 of Fig. 5 and the estimation diameter value calculated by described diameter value estimation unit 2e.
The diameter value data exported by diameter value estimation unit 2e are stored in diameter value memory cell 2g.
Then, life estimation unit 2f obtains the slope calculated according to the minimum value of the diameter value data under the date-time of more than 2 be stored in diameter value memory cell 2g.This can be tried to achieve by following process: as shown in Figure 6, measuring the rope diameter value at date T1 mensuration X1 place, rope position, by diameter value estimation unit 2e export and be stored in diameter value data minimum in the diameter value data in diameter value memory cell 2g, minimum value as the diameter value data measuring date T1 is drawn, for measure date T2 ~ T5 similarly calculated diameter Value Data minimum value and draw successively, obtain the near linear of the drawing value of more than 2, obtain this slope thus.Further, during predicting the rope diameter value (in Japanese architecture basic taper method, referring to less than 96% of rope nominal diameter) preset that this near linear reaches as threshold value, and estimate that period changed by rope.
In figure 6, prediction mensuration date T6 aftert, will lower than threshold value.
The impairment grade calculated described above by impairment grade calculating unit 2c, the diameter estimated valve calculated by diameter value estimation unit 2e, the rope calculated by life estimation unit 2f are changed and are presented on the picture of read out instrument 3, and be supplied to upkeep operation personnel etc. period.
Elevator simulation image-display units 3a, according to the specification data be stored in elevator specification memory cell 2b, is presented on the picture of read out instrument 3 as the image of the elevator of diagnosis object and elevator simulation image 301 as shown in Figure 3 using simulating.
Now, Overlapping display unit 2d sets elevator simulation image-display units 3a, makes, according to the impairment grade calculated by impairment grade calculating unit 2c, to carry out color separation display according to each rope position of the main rope 108 on elevator simulation image 301.And, elevator simulation image-display units 3a is set, make, according to the diameter estimated valve (being stored in diameter value memory cell 2g) calculated by diameter value estimation unit 2e, to carry out color separation display to main rope 108 part on elevator simulation image 301 according to each rope position.Further, elevator simulation image-display units 3a being set, making to carry out for notifying that the display of the life diagnosis result 302 in period changed by the rope calculated by life estimation unit 2f.
Fig. 2 (b) illustrate in the diagram of curves of the relation between impairment grade and rope position, the threshold value of multiple impairment grade is set as the threshold value a in curve ~ c, if and if such as impairment grade carry out color differentiation at below threshold value a by blueness and carry out color differentiation in more than threshold value c redness, or the Security Color etc. using JIS (Japanese Industrial Standards) to specify carries out color differentiation.
In addition, figure 3 illustrates example when representing impairment grade with color deep or light, as color is denseer when impairment grade is larger, but also can change the thickness of the rope that will show according to impairment grade or make rope flickering display or gray scale (gradation) display or show with the dotted line beyond solid line, dotted line, long and short dash line etc.
Further, the color differentiation for diameter estimated valve is also the same.
The fixed terminal that the maintenance portable terminal device carried upkeep operation personnel like this, upkeep operation personnel use in office, by the remote monitoring services device of network collection state of elevator, the information superposition relevant with the life-span of main rope being presented at simulant elevator safeguards on the elevator simulation image 301 of on-the-spot installation environment, easily understands the rope position that the all-round middle deterioration of main rope 108 easily develops thus.And, when the car 106 made by screen operation unit 3b on elevator simulation image 301 and/or counterweight 105, pulley etc. are mobile, position and this action of main rope 108 are moved in linkage, thus, when overhauling this rope position, can easily simulate and grasp to make car 106 move to which floor.
As mentioned above, according to this embodiment 1, safeguard on the image of on-the-spot installation environment by the information superposition relevant with the life-span of main rope being presented at simulant elevator, effectively can point out the information in the life-span about main rope to users such as upkeep operation personnel, the users such as upkeep operation personnel easily and exactly can grasp the position that the all-round middle deterioration of main rope easily develops and the position etc. that should overhaul.
In addition, the impairment grade of each rope position of elevator can accurately be calculated.Especially 2:1 wiring produces each rope position of the elevator of S sigmoid impairment grade than elevator etc. can accurately be calculated.
This can eliminate the following problem of the prior art of the elevator rope paying close attention to 1:1 wiring ratio: namely, to produce 1:1 wiring than elevator in the elevator of wiring ratio of unexistent S sigmoid be object carry out rope diagnosis time, produce distinctive S sigmoid rope position life estimation result and produce difference between actual life.
In addition, the actual measurement rope diameter in the scope that can be able to touch according to staff and impairment grade, although estimate impairment grade be significantly positioned in the design of elevator staff touch less than the rope diameter of position.
This can eliminate following problem: namely, although need the rope overhauling project carrying out Japanese architecture basic taper method the 12nd article the 3rd regulation namely to wear and tear for elevator develop the measuring diameter of the most serious part, but namely allow to determine the significant position of rope deterioration, but when the position that this is determined be restriction due to lifting travel and elevator movable range and be in staff touch less than position, the rope diameter of deteriorated position can not be measured.
Use the rope diameter estimated, the period in rope life-span can be determined accurately.
In addition, by showing the rope diameter estimated valve calculated according to impairment grade and the rope life-span calculated according to rope diameter estimated valve on picture, elevator maintenance operating personnel can easily as soon as possible to holder's recommended replacement rope of elevator, and holder can formulate rope replacing plan as early as possible.
In addition, by the action of simulant elevator on elevator simulation image 301, when overhauling the rope position expected, easily can grasp and car 106 can be made to move to which floor.
In addition, to be illustrated than elevator for 2:1 wiring above, but also to go for the elevator of other wiring ratio, the present invention especially can be applicable to the elevator producing S sigmoid, and namely non-1:1 wiring compares elevator.
In addition, the present application can be carried out the distortion of any inscape of embodiment or be omitted the arbitrary inscape of embodiment in this scope of invention.
Utilizability in industry
As mentioned above, elevator rope life diagnosis device of the present invention can point out information about the main rope life-span effectively to users such as upkeep operation personnel, is thus suitable as the device of the maintenance service of elevator.
Label declaration
1 elevator control gear; 1a movement history recording memory cell; 2 elevator rope life diagnosis devices; 2a pulley number of pass times calculating unit; 2b elevator specification memory cell; 2c impairment grade calculating unit; 2d Overlapping display unit; 2e diameter value estimation unit; 2f life estimation unit; 2g diameter value memory cell; 3 read out instruments; 3a elevator simulation image-display units; 3b screen operation unit; 101 towing machines; 102 deflector sheaves; 103 counterweight hanging wheels; 104 car hanging wheels; 105 counterweights; 106 cars; 107 control cable; 108 main ropes; 301 elevator simulation images; 302 life diagnosis results; 7a upper sheave; 7b lower pulley; 7c rope; 7d upper sheave; 7e lower pulley; 8a ~ 8g pulley; 8h car; 8i rope.