JP6741366B2 - Soundness diagnostic device - Google Patents

Description

The present invention relates to a soundness diagnostic apparatus for diagnosing the soundness of a diagnosis target which is at least one of a building provided with an elevator and an elevator.

In the conventional earthquake damage measurement system, the deformation state measuring unit measures the deformation state of the guide rail. Further, the deformation state of the building is estimated based on the measured deformation state of the guide rail, and the soundness of the building is evaluated (for example, refer to Patent Document 1).

Japanese Patent No. 5197992

In the conventional earthquake damage measuring system as described above, the soundness of the building is evaluated based on the deformed state of the guide rail. However, in reality, the deformation of the elevator guide rails may not match the deformation of the building. In particular, when only the guide rail is deformed due to the shaking of the earthquake, the conventional earthquake damage measuring system determines that the building is also deformed similarly to the guide rail.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a soundness diagnosis apparatus that can diagnose the soundness of a diagnosis target with higher accuracy.

The soundness diagnostic apparatus according to the present invention, the deformation state of a plurality of guide rails of the elevator installed in the building, a rail deformation detection unit that detects for each guide rail, and a plurality of rail deformation detection unit detected. A diagnostic unit is provided for diagnosing the soundness of a diagnostic target, which is at least one of a building and an elevator, based on the deformation state of the guide rail.

According to the soundness diagnostic apparatus of the present invention, the soundness of the diagnosis target can be diagnosed with higher accuracy.

It is a block diagram which shows the building provided with the health diagnostic apparatus by Embodiment 1 of this invention. It is explanatory drawing which shows the state which the deformation|transformation in the width direction of the cage generate|occur|produced in the building of FIG. It is explanatory drawing which shows the state by which the deformation|transformation in the width direction of the car occurred only in the 1st car guide rail of FIG. It is explanatory drawing which shows the state which the deformation|transformation of the front-back direction of the cage generate|occur|produced in the building of FIG. It is explanatory drawing which shows the state in which the deformation|transformation of the front-back direction of the car occurred only in the 1st car guide rail of FIG. It is a block diagram which shows the soundness diagnostic apparatus of Embodiment 1. 7 is a graph showing an example of reference values set in the diagnostic apparatus body of FIG. 6. It is a graph which shows an example of the measurement value at the time of the diagnosis measured at the time of the soundness diagnosis. 7 is a flowchart showing a soundness diagnostic operation by the diagnostic device body of FIG. 6. It is a block diagram which shows the building provided with the health diagnostic apparatus by Embodiment 2 of this invention. It is explanatory drawing which shows an example of the deformation|transformation state of the 1st and 2nd car guide rails when the soundness of the building of FIG. 10 has abnormality. It is explanatory drawing which shows an example of the deformation|transformation state of the 1st and 2nd car guide rail when the soundness of one elevator of FIG. 10 has abnormality. It is a block diagram which shows the soundness diagnostic apparatus of Embodiment 2. It is a block diagram which shows the 1st example of the sensor used as a 1st, 2nd, 3rd, and 4th sensor of FIG. It is a block diagram which shows the state which the inclination of the cage|basket of FIG. 14 produced. It is a block diagram which shows the 2nd example of the sensor used as a 1st, 2nd, 3rd, and 4th sensor of FIG. It is a block diagram which shows the 3rd example of the sensor used as a 1st, 2nd, 3rd, and 4th sensor of FIG. It is a front view which shows the light receiver of FIG. It is a block diagram which shows the 4th example of the sensor used as a 1st, 2nd, 3rd, and 4th sensor of FIG. FIG. 20 is a configuration diagram showing a state where the first and second car guide rails of FIG. 19 are deformed. It is a block diagram which shows the 1st example of the processing circuit which implement|achieves each function of the diagnostic apparatus main body of Embodiments 1 and 2. It is a block diagram which shows the 2nd example of the processing circuit which implement|achieves each function of the diagnostic device main body of Embodiments 1 and 2.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
1 is a configuration diagram showing a building equipped with a health diagnostic device according to Embodiment 1 of the present invention. In the figure, a building 1 is provided with a hoistway 2 and a machine room 3. The machine room 3 is arranged above the hoistway 2.

A hoisting machine 4 is installed in the machine room 3. The hoisting machine 4 has a drive sheave 5, a hoisting machine motor (not shown), and a hoisting machine brake (not shown). The hoisting machine motor rotates the drive sheave 5. The hoisting machine brake holds the stationary state of the drive sheave 5 or brakes the rotation of the drive sheave 5.

A suspension body 6 is wound around the drive sheave 5. As the suspension 6, a plurality of ropes or a plurality of belts are used.

A car 7 as an elevating body is connected to the first end of the suspension 6. A balance weight 8 is connected to the second end of the suspension 6. The car 7 and the counterweight 8 are suspended in the hoistway 2 by the suspension 6. Further, the car 7 and the counterweight 8 move up and down in the hoistway 2 by rotating the drive sheave 5.

The car 7 has a car frame 9 and a car room 10. The suspension 6 is connected to the car frame 9. The car room 10 is supported by the car frame 9.

A first car guide rail 11a, a second car guide rail 11b, a first counterweight guide rail 12a, and a second counterweight guide rail 12b are installed in the hoistway 2.

The first and second car guide rails 11a and 11b guide the car 7 up and down. The first car guide rail 11a is arranged on one side in the width direction of the car 7. The second car guide rail 11b is arranged on the other side of the car 7 in the width direction.

The first and second counterweight guide rails 12a and 12b guide the lifting of the counterweight 8. The first counterweight guide rail 12a is arranged on one side in the width direction of the counterweight 8. The second counterweight guide rail 12b is arranged on the other side in the width direction of the counterweight 8.

The first car guide rail 11a, the second car guide rail 11b, the first counterweight guide rail 12a, and the second counterweight guide rail 12b are held by a plurality of rail brackets 13, respectively. Each rail bracket 13 is fixed to the hoistway wall.

The car frame 9 is provided with a first upper guide device 15a, a second upper guide device 15b, a first lower guide device 16a, and a second lower guide device 16b. The first and second upper guide devices 15 a and 15 b are provided on the upper portion of the car frame 9. The first and second lower guide devices 16 a and 16 b are provided below the car frame 9.

The first upper guide device 15a and the first lower guide device 16a are in contact with the first car guide rail 11a. The second upper guide device 15b and the second lower guide device 16b are in contact with the second car guide rail 11b.

As the guide devices 15a, 15b, 16a, 16b, sliding guide shoes or roller guide devices are used, respectively.

An elevator control device 17 is installed in the machine room 3. The elevator control device 17 controls the operation of the car 7 by controlling the hoisting machine 4. The elevator control device 17 has a computer.

The elevator 20 according to the first embodiment includes a hoist 4, a suspension 6, a car 7, a counterweight 8, guide rails 11a, 11b, 12a and 12b, a rail bracket 13, guide devices 15a, 15b, 16a and 16b, And an elevator control unit 17.

Further, the soundness diagnostic apparatus according to the first embodiment has a diagnostic apparatus body 21. The diagnostic device main body 21 is installed in the machine room 3. The diagnostic device main body 21 is communicatively connected to the elevator control device 17.

The first, second, third, and fourth reaction force information are input to the diagnostic device body 21. The first reaction force information is information on the reaction force received by the first upper guide device 15a from the first car guide rail 11a. The second reaction force information is information regarding the reaction force received by the second upper guide device 15b from the second car guide rail 11b.

The third reaction force information is information on the reaction force received by the first lower guide device 16a from the first car guide rail 11a. The fourth reaction force information is information regarding the reaction force received by the second lower guide device 16b from the second car guide rail 11b.

Here, when the car 7 travels without passengers, the reaction force received by the guide devices 15a, 15b, 16a, 16b varies slightly due to slight deformation of the car guide rails 11a, 11b. Is constant.

On the other hand, when the car guide rails 11a and 11b are deformed by an earthquake and the car 7 passes through the deformed portions, the reaction force received by the guide devices 15a, 15b, 16a and 16b is changed.

For example, as shown in FIG. 2, when the car 1 is deformed in the width direction in the building 1, the first and second car guide rails 11a and 11b are similarly deformed. Therefore, the distance between the first and second car guide rails 11a and 11b is substantially constant.

On the other hand, as shown in FIG. 3, when the building 1 is not deformed and only the first car guide rail 11a is deformed, the distance between the first and second car guide rails 11a and 11b changes.

2 and 3, the Y-axis direction is the width direction of the car 7 before the deformation of the first and second car guide rails 11a and 11b. The X-axis direction is the front-back direction of the car 7 before the first and second car guide rails 11a and 11b are deformed. The Z-axis direction is the vertical direction.

2 and 3, the reaction force received by the guide devices 15a, 15b, 16a, 16b is indicated by an arrow. The length of each arrow shows the magnitude of the reaction force.

In FIG. 3, the distance between the first and second car guide rails 11a and 11b is large at the positions of the first and second upper guide devices 15a and 15b. At this time, the car 7 tilts toward the first car guide rail 11a. Further, the reaction forces received by the first and second upper guide devices 15a and 15b are simultaneously reduced.

In this way, by measuring all the reaction forces received by the guide devices 15a, 15b, 16a, 16b installed on the upper, lower, left and right sides of the car 7, the deformation states of the first and second car guide rails 11a, 11b can be determined. Can be detected.

If the deformed state of the first car guide rail 11a and the deformed state of the second car guide rail 11b are different, only the first car guide rail 11a or the second car guide rail 11b is deformed. It can be estimated that

Further, if the first and second car guide rails 11a and 11b have the same deformation state, it can be estimated that the entire building 1 is deformed. That is, the soundness can be evaluated separately for the elevator 20 and the building 1.

The same applies to the deformation of the car 7 in the front-rear direction. As an example, FIG. 4 illustrates a state in which the car 7 is deformed in the front-rear direction in the entire building 1. Further, FIG. 5 shows a state in which the car 7 is deformed in the front-rear direction only in the first car guide rail 11a.

FIG. 6 is a block diagram showing the soundness diagnostic apparatus according to the first embodiment. The health diagnostic apparatus according to the first embodiment has a first upper sensor 22a, a second upper sensor 22b, a first lower sensor 23a, and a second lower sensor 23b in addition to the diagnostic apparatus main body 21. ing.

The first upper sensor 22a is provided on the first upper guide device 15a. Further, the first upper sensor 22a generates, as the first reaction force information, a signal according to the magnitude of the reaction force received by the first upper guide device 15a.

The second upper sensor 22b is provided on the second upper guide device 15b. Further, the second upper sensor 22b generates, as the second reaction force information, a signal according to the magnitude of the reaction force received by the second upper guide device 15b.

The first lower sensor 23a is provided in the first lower guide device 16a. Further, the first lower sensor 23a generates, as the third reaction force information, a signal according to the magnitude of the reaction force received by the first lower guide device 16a.

The second lower sensor 23b is provided on the second lower guide device 16b. The second lower sensor 23b also generates, as the fourth reaction force information, a signal according to the magnitude of the reaction force received by the second lower guide device 16b.

The diagnostic device body 21 according to the first embodiment diagnoses the soundness of the diagnostic target after the earthquake. The diagnosis target is at least one of the building 1 and the elevator 20. Further, the diagnostic device main body 21 determines whether or not there is an abnormality that interferes with restarting the automatic operation of the elevator 20 as the soundness of the diagnostic target after the occurrence of the earthquake.

Further, the diagnostic device main body 21 outputs a command to the elevator control device 17 to cause the car 7 to travel when the soundness is diagnosed. The elevator control device 17 causes the car 7 to travel when the soundness is diagnosed.

Further, the diagnostic device main body 21 has, as functional blocks, a rail deformation detection unit 21a, a determination unit 21b as a diagnostic unit, a storage unit 21c, and a reporting unit 21d.

The rail deformation detection unit 21a uses signals from the first upper sensor 22a, the second upper sensor 22b, the first lower sensor 23a, and the second lower sensor 23b as input signals.

In addition, the rail deformation detection unit 21a uses the first upper sensor 22a, the second upper sensor 22b, the first lower sensor 23a, and the second lower sensor 23b based on the signals from the first and second sensors. The deformed state of the car guide rails 11a and 11b is detected for each of the first and second car guide rails 11a and 11b. In this example, the deformation state is the deformation amount.

The determination unit 21b diagnoses the soundness of the diagnosis target based on the deformation states of the first and second car guide rails 11a and 11b detected by the rail deformation detection unit 21a. That is, the determination unit 21b compares the measured values of the deformation amounts of the first and second car guide rails 11a and 11b with the reference value to determine the deformation amounts of the first and second car guide rails 11a and 11b. The presence or absence of abnormality is judged.

Further, the determination unit 21b determines whether only the first car guide rail 11a or the second car guide rail 11b is deformed or the entire building 1 is deformed.

The storage unit 21c stores the above reference value. The reporting unit 21d reports the determination result by the determination unit 21b to the elevator control device 17 and the remote management room.

FIG. 7 is a graph showing an example of reference values set in the diagnostic device main body 21 of FIG. In this example, the reference value is set, for example, by adding an allowable value to the initial measurement value measured when the elevator 20 is installed. This is because even if there is no abnormality, the first and second car guide rails 11a and 11b may be slightly deformed due to an error during installation.

The measurement of the initial measurement value is performed by causing the car 7 to travel over the entire lifting stroke. At this time, the traveling speed of the car 7 may be changed from the speed during normal operation in order to improve accuracy. For example, the traveling speed of the car 7 may be lower than the rated speed when measuring the initial measurement value. The reference value may be updated when there is no abnormality in maintenance inspection. Further, the reference value may be updated periodically at a set cycle.

FIG. 8 is a graph showing an example of diagnostic measurement values measured at the time of diagnostics. In this example, the measurement value during diagnosis exceeds the reference value in a part of the ascending/descending stroke. Thereby, the determination unit 21b determines that there is an abnormality. The soundness diagnosis may be performed after occurrence of a disaster other than an earthquake, or may be performed at any timing by manually inputting a diagnosis command.

FIG. 9 is a flowchart showing the soundness diagnostic operation by the diagnostic device body 21 of FIG. In the soundness diagnostic operation, the diagnostic device main body 21 first outputs an instruction to start traveling of the car 7 to the elevator control device 17 in step S1.

When the traveling of the car 7 is started, the diagnostic device main body 21 determines the information from the first and second upper sensors 22a and 22b and the first and second information until the traveling of the car 7 is completed in steps S2 and S3. 2 and the information from the lower sensors 23a and 23b.

When the traveling of the car 7 is completed, the diagnostic device main body 21 measures the amount of deformation of the first and second car guide rails 11a and 11b in step S4. Then, in step S5, the diagnostic device main body 21 determines whether or not there is an abnormality in the amount of deformation of the first and second car guide rails 11a and 11b. Further, in step S5, the diagnostic device main body 21 determines whether only the first car guide rail 11a or the second car guide rail 11b is deformed or the entire building 1 is deformed.

Thereafter, the diagnostic device main body 21 reports the determination result to the elevator control device 17 and the remote management room, and ends the process.

In such a soundness diagnostic apparatus, the deformed state of the first and second car guide rails 11a and 11b is detected for each of the first and second car guide rails 11a and 11b. Then, the soundness of the diagnosis target is diagnosed based on the deformed states of the first and second car guide rails 11a and 11b.

Therefore, it is possible to determine whether only the first car guide rail 11a or the second car guide rail 11b is deformed or whether the entire building 1 is deformed. Therefore, the soundness of the diagnosis target can be diagnosed with higher accuracy.

Further, the rail deformation detection unit 21a uses signals from the sensors 22a, 22b, 23a, 23b provided in the car 7 as input signals. Therefore, by traveling the car 7, it is possible to detect the deformed state of the first and second car guide rails 11a and 11b over the whole.

In addition, the rail deformation detection unit 21a uses signals from the first and second upper sensors 22a and 22b and the first and second lower sensors 23a and 23b as input signals. Therefore, it is possible to more accurately determine whether only the first car guide rail 11a or the second car guide rail 11b is deformed or whether the entire building 1 is deformed.

The deformed states of the first and second counterweight guide rails 12a and 12b may be detected in the same manner as the deformed states of the first and second car guide rails 11a and 11b.

Further, the sensor is not limited to the sensor that detects the reaction force received by the guide device.

Further, each guide device 15a, 15b, 16a, 16b is provided with an elastic member such as a spring or rubber for vibration isolation. Therefore, the deformed state of each guide rail 11a, 11b, 12a, 12b may be detected from the amount of deformation of the elastic member provided in each guide device 15a, 15b, 16a, 16b. Alternatively, the signals from the plurality of cameras provided in the hoistway may be subjected to image processing to detect the deformed state of the plurality of guide rails for each guide rail.

In addition, a plurality of types of sensors may be used together. For example, a sensor that detects the reaction force of the guide device and a sensor that detects the inclination angle of the car may be used together.

Embodiment 2.
Next, FIG. 10 is a configuration diagram showing a building provided with a soundness diagnostic device according to a second embodiment of the present invention. In the second embodiment, a plurality of elevators are installed in the building 1. In the example of FIG. 10, an elevator 20A of the No. A, an elevator 20B of the No. B, an elevator 20C of the No. C, and an elevator 20D of the No. D are installed in the building 1.

The configuration of each of the elevators 20A to 20D is similar to that of the elevator 20 of the first embodiment. Further, in FIG. 10, for simplification, only the car 7, the first and second car guide rails 11 a and 11 b, and the rail bracket 13 of each elevator 20</b>A to 20</b>D are shown.

The elevator control device 17 of the elevators 20A to 20D is controlled by a group management device (not shown).

The health diagnostic device according to the second embodiment has a diagnostic device main body 31. The diagnostic device body 31 is installed in the machine room 3. The diagnostic device main body 31 is communicatively connected to the elevator control device 17 of the elevators 20A to 20D.

The first, second, third, and fourth sensor information are input to the diagnostic device body 31. The contents of the first, second, third, and fourth sensor information will be described later.

The diagnostic device main body 31 diagnoses the soundness of the diagnostic target by comparing the deformed states of the first and second car guide rails 11a and 11b of the elevators 20A to 20D.

Here, as the configuration for measuring the deformed state of the guide rail, there are a configuration in which an acceleration sensor is installed in an existing car, a configuration in which a hoisting machine torque is used, and a configuration in which an optical fiber is directly installed in the guide rail. Are known.

However, the deformation of the guide rail is the sum of the deformation of the building in which the guide rail is installed and the deformation of the guide rail itself. Therefore, it is difficult to determine whether only the guide rail is deformed or the building is deformed by using only one piece of information.

On the other hand, in the second embodiment, the plurality of elevators 20A to 20D installed in one building 1 similarly detect the deformed states of the first and second car guide rails 11a and 11b. Then, by comparing the detection results, the soundness is divided into the elevator 20 and the building 1 and evaluated.

For example, as shown in FIG. 11, in all the elevators 20A to 20D, if the first and second car guide rails 11a and 11b are largely deformed at the same car position, the soundness of the building 1 is abnormal. It can be estimated that

On the other hand, as shown in FIG. 12, if there is a large change in the value of only one elevator 20C, it can be estimated that the soundness of only one elevator 20C is abnormal.

FIG. 13 is a block diagram showing the soundness diagnostic apparatus according to the second embodiment. The health diagnostic apparatus according to the second embodiment has a first sensor 32a, a second sensor 32b, a third sensor 32c, and a fourth sensor 32d in addition to the diagnostic apparatus main body 31.

The first sensor 32a generates first sensor information when the car 7 of the car A is run. The first sensor information is a signal corresponding to the deformed state of the first and second car guide rails 11a and 11b of the car A.

The second sensor 32b generates the second sensor information when the car 7 of the car No. B is driven. The second sensor information is a signal corresponding to the deformed state of the first and second car guide rails 11a and 11b of the B car.

The third sensor 32c generates third sensor information when the car 7 of the car No. C is driven. The third sensor information is a signal corresponding to the deformed state of the first and second car guide rails 11a and 11b of the C-th car.

The fourth sensor 32d generates fourth sensor information when the car 7 of the D car is driven. The fourth sensor information is a signal corresponding to the deformed states of the first and second car guide rails 11a and 11b of the D car.

The diagnostic device main body 31 according to the second embodiment diagnoses the soundness of the diagnostic target after the earthquake. The diagnosis target is at least one of the building 1 and the elevator 20. Further, the diagnostic device main body 31 determines whether or not there is an abnormality that interferes with restarting the automatic operation of the elevators 20A to 20D as the soundness of the diagnostic target after the occurrence of the earthquake.

In addition, the diagnostic device main body 31 outputs a command to drive the car 7 of the elevators 20A to 20D to the group management device when the soundness is diagnosed. Each elevator control device 17 causes the corresponding car 7 to travel when the soundness is diagnosed.

Further, the diagnostic device main body 31 has, as functional blocks, a rail deformation detection unit 31a, a determination unit 31b as a diagnostic unit, a storage unit 31c, and a reporting unit 31d.

The rail deformation detection unit 31a uses signals from the first, second, third, and fourth sensors 32a to 32d as input signals. In addition, the rail deformation detection unit 31a, based on the signals from the first, second, third, and fourth sensors 32a to 32d, the first and second car guide rails 11a of the elevators 20A to 20D, respectively. , 11b are detected. In this example, the deformation state is the deformation amount.

The determination unit 31b diagnoses the soundness of the diagnosis target based on the deformation states of the first and second car guide rails 11a and 11b detected by the rail deformation detection unit 31a. That is, the determination unit 31b compares the measured values of the deformation amounts of the first and second car guide rails 11a and 11b with the reference value to determine the deformation amounts of the first and second car guide rails 11a and 11b. The presence or absence of abnormality is judged.

Further, the determination unit 31b determines whether the soundness of only a part of the elevators 20A to 20D is abnormal or the soundness of the entire building 1 is abnormal.

The storage unit 31c stores the above reference value. The method of setting the reference value is the same as in the first embodiment. The reporting unit 31d reports the determination result of the determination unit 31b to the group management device and the remote management room.

The flow of the soundness diagnostic operation by the diagnostic device main body 31 of the second embodiment is the same as in FIG.

Hereinafter, specific configurations of the first, second, third, and fourth sensors 32a to 32d will be described.

FIG. 14 is a configuration diagram showing a first example of a sensor used as the first, second, third, and fourth sensors 32a to 32d of FIG. A plurality of vibration isolator members 33 are interposed between the car frame 9 and the lower part of the car room 10.

In the first example, the displacement meter 34 is used as the first, second, third, and fourth sensors 32a to 32d. The displacement meter 34 is provided on the upper portion of the cab 10.

When the car 7 tilts, the distance between the upper part of the car room 10 and the car frame 9 changes. The displacement meter 34 generates a signal according to the distance between the upper part of the car room 10 and the car frame 9. In this way, the displacement meter 34 generates a signal corresponding to the movement of the car room 10 with respect to the car frame 9 due to the inclination of the car 7. That is, the displacement meter 34 functions as a tilt sensor that generates a signal according to the tilt of the car 7.

When the car 7 normally travels in a state in which no passengers are placed, the car 7 does not tilt, so the output of the displacement meter 34 remains unchanged at a value corresponding to δ1 in FIG.

On the other hand, when the building 1 and the car guide rails 11a and 11b are deformed by an earthquake, the car frame 9 tilts as shown in FIG. 15, for example. At this time, since the car room 10 is supported by the car frame 9 via the vibration isolator 33, the inclination angle of the car frame 9 does not match the inclination angle of the car room 10.

As a result, the distance from the upper part of the car room 10 to the car frame 9 changes, and the output of the displacement meter 34 also changes. In FIG. 15, the distance from the upper part of the car room 10 to the car frame 9 is increased from δ1 to δ2.

In this way, the rail deformation detection unit 31a can use the signals from the displacement gauges 34 provided in the elevators 20A to 20D as input signals.

Next, FIG. 16 is a configuration diagram showing a second example of the sensors used as the first, second, third, and fourth sensors 32a to 32d in FIG. In the second example, as the first, second, third, and fourth sensors 32a to 32d, tilt sensors that generate signals according to the deformation of the vibration isolator 33 are used.

In FIG. 16, the car frame 9 is tilted by the forced displacement input from the first and second car guide rails 11a and 11b. As a result, the horizontal distance d1 to the vibration isolator 33 on one side and the distance d2 to the vibration isolator 33 on the other side change with respect to the center of gravity g of the cab 10. Then, the reaction force from the vibration isolator 33 changes.

Therefore, even if a tilt sensor that generates a signal according to the deformation amount of the vibration isolating member 33 or a signal according to the reaction force generated in the vibration isolating member 33 is used as the signal according to the deformation of the vibration isolating member 33, It is possible to detect the deformed state of the first and second car guide rails 11a and 11b.

Next, FIG. 17 is a configuration diagram showing a third example of a sensor used as the first, second, third, and fourth sensors 32a to 32d in FIG. In the third example, an inclinometer 35 as an inclination sensor is provided above the car 7. The inclinometer 35 generates a signal according to the inclination of the car 7.

A laser oscillator 36 is installed at the bottom of the hoistway 2. The laser oscillator 36 is disposed directly below the car 7 and emits laser light vertically upward. A light receiver 37 is provided below the car 7. The light receiver 37 is a two-dimensional sensor that receives the laser light from the laser oscillator 36 on its light receiving surface.

FIG. 18 is a front view showing the light receiver 37 of FIG. When the car 7 normally travels without passengers, the position of the laser light spot 38 in the light receiver 37 does not move because the horizontal position of the car 7 is the same.

On the other hand, when the car 7 travels in a state where the building 1 and the car guide rails 11a and 11b are deformed by an earthquake, the horizontal position of the car 7 moves, so that the laser light spot 38 moves as shown by the arrow in FIG. To do.

Thus, the light receiver 37 functions as a displacement sensor that generates a signal according to the horizontal displacement of the car 7.

In the third example, a combination of an inclinometer 35, a laser oscillator 36, and a light receiver 37 is used as the first, second, third, and fourth sensors 32a to 32d. The rail deformation detector 31a uses the signal from the light receiver 37 as an input signal in addition to the signal from the inclinometer 35.

The deformed state of the first and second car guide rails 11a and 11b can also be detected by the first example, the second example, or the inclinometer 35. However, by detecting the horizontal displacement of the car 7 in addition to the inclination of the car 7, it is possible to detect the deformed state of the first and second car guide rails 11a and 11b in more detail.

The laser oscillator 36 may be arranged downward on the top of the hoistway 2 and the light receiver 37 may be arranged upward on the car 7.

Further, the laser oscillator 36 may be arranged downward at the bottom of the car 7, and the light receiver 37 may be arranged at the bottom of the hoistway 2.

Further, the laser oscillator 36 may be arranged above the car 7 and the light receiver 37 may be arranged downward on the top of the hoistway 2.

Further, the combination of the laser oscillator 36 and the light receiver 37 may be added to the configuration of the first embodiment. As a result, also in the first embodiment, it is possible to detect the deformed state of the first and second car guide rails 11a and 11b in more detail.

Next, FIG. 19 is a configuration diagram showing a fourth example of a sensor used as the first, second, third, and fourth sensors 32a to 32d of FIG. In the fourth example, as the first, second, third, and fourth sensors 32a to 32d, sensors that detect a shift in the landing position of the car 7 are used.

When the car 7 is normally run from the top floor to the bottom floor, the amount of extension of the suspension 6 is constant.

On the other hand, when the building 1 and the car guide rails 11a and 11b are deformed by an earthquake, when the car 7 is run from the uppermost floor to the lowermost floor with the same amount of extension of the suspension body 6 as in normal times, as shown in FIG. Then, the landing position changes. In FIG. 20, the landing position deviates from the normal landing position h0 to the landing position h1 by Δh.

By measuring the deviation amount of the landing position at each floor, the deformed state of the first and second car guide rails 11a and 11b can be detected.

In addition, in the fourth example, the traveling direction of the car 7 and the traveling start floor are not limited to the above example.

In the fourth example, the displacement of the landing position is detected by comparing the amount of rotation of the drive sheave 5 or the amount of extension of the suspension 6 when the car 7 is landed on the same position before and after the earthquake. May be.

In such a soundness diagnostic device, the deformed states of the first and second car guide rails 11a and 11b of the elevators 20A to 20D are detected. Then, the soundness of the diagnosis target is diagnosed by comparing the deformed states of the first and second car guide rails 11a and 11b of the different elevators 20A to 20D.

Therefore, it is possible to determine whether the soundness of only some of the elevators 20A to 20D is abnormal or the soundness of the entire building 1 is abnormal. Therefore, the soundness of the diagnosis target can be diagnosed with higher accuracy.

Further, by using the signal from the tilt sensor as the input signal of the rail deformation detection unit 31a, the deformation state of the first and second car guide rails 11a and 11b for each of the elevators 20A to 20D can be easily detected. it can.

Further, by using the tilt sensor that generates a signal according to the movement of the car room 10 with respect to the car frame 9, it is possible to more reliably detect the deformed state of the first and second car guide rails 11a and 11b.

Further, by using an inclination sensor that generates a signal according to the distance between the car frame 9 and the car room 10, it is possible to more reliably detect the deformed state of the first and second car guide rails 11a and 11b. You can

Further, by using the tilt sensor that generates a signal according to the deformation of the vibration isolating member 33, the deformed state of the first and second car guide rails 11a and 11b can be detected more reliably.

Further, by using the signal from the displacement sensor in addition to the signal from the tilt sensor as the input signal of the rail deformation detection unit 31a, the soundness of the diagnosis target can be diagnosed with higher accuracy.

Further, the first and second car guide rails for each of the elevators 20A to 20D are detected by detecting the deformed state of the first and second car guide rails 11a and 11b based on the deviation of the floor landing position of the car 7. The deformed states of 11a and 11b can be easily detected.

In addition, by detecting the deformed state of the first and second car guide rails 11a and 11b based on the torque information of the hoist 4 for raising and lowering the car 7, the first and the first elevators 20A to 20D are detected. It is also possible to detect the deformed state of the two car guide rails 11a and 11b.

In the second embodiment, the number of elevators installed in the building 1 may be any number as long as it is two or more.

Further, in the second embodiment, the deformed states of the first and second car guide rails 11a and 11b may be detected by the same method as in the first embodiment.

In the second embodiment, the deformed state of the first and second car guide rails 11a and 11b is detected, but the deformed state of one of the first and second car guide rails 11a and 11b is detected. May be. Further, the deformed state of at least one of the first and second counterweight guide rails 12a and 12b may be detected.

Further, the soundness diagnosis may be performed after the occurrence of a disaster other than an earthquake, or may be performed at any timing by manually inputting a diagnosis command.

It is also possible to combine the first and second embodiments.

Further, each function of the diagnostic device main bodies 21 and 31 of the first and second embodiments is realized by a processing circuit. FIG. 21 is a configuration diagram showing a first example of a processing circuit that realizes each function of the diagnostic device main bodies 21 and 31 of the first and second embodiments. The processing circuit 100 of the first example is dedicated hardware.

In addition, the processing circuit 100 is, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a combination thereof. Applicable Further, each function of the diagnostic device main bodies 21 and 31 may be realized by the individual processing circuit 100, or each function may be collectively realized by the processing circuit 100.

FIG. 22 is a configuration diagram showing a second example of the processing circuit that realizes each function of the diagnostic device main bodies 21 and 31 of the first and second embodiments. The processing circuit 200 of the second example includes a processor 201 and a memory 202.

In the processing circuit 200, each function of the diagnostic device main bodies 21 and 31 is realized by software, firmware, or a combination of software and firmware. The software and firmware are described as programs and stored in the memory 202. The processor 201 realizes each function by reading and executing the program stored in the memory 202.

It can be said that the program stored in the memory 202 causes a computer to execute the procedure or method of each unit described above. Here, the memory 202 is, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory, etc.), an EEPROM (Electrically readable memory, EEPROM). Or a volatile semiconductor memory. A magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, a DVD, etc. also correspond to the memory 202.

The functions of the respective units described above may be partially implemented by dedicated hardware and partially implemented by software or firmware.

As described above, the processing circuit can realize the functions of the above-described units by hardware, software, firmware, or a combination thereof.

1 building, 7 car (elevator), 9 car frame, 10 car room, 11a 1st car guide rail, 11b 2nd car guide rail, 20, 20A, 20B, 20C, 20D elevator, 21, 31 Diagnostic device Main body, 21a, 31a Rail deformation detection unit, 21b, 31b Judgment unit (diagnosis unit), 22a First upper sensor, 22b Second upper sensor, 23a First lower sensor, 23b Second lower sensor, 34 Displacement Meter (tilt sensor), 35 Inclinometer (tilt sensor), 37 Light receiver (displacement sensor).

Claims (8)

A rail deformation detection unit that detects a deformation state of a plurality of guide rails of a plurality of elevators installed in a building for each guide rail, and the guide rails of different elevators that are detected by the rail deformation detection unit. A health diagnostic device comprising: a diagnostic unit for diagnosing the health of a diagnosis target which is at least one of the building and the elevator by comparing the deformation states of the above. Further comprising a plurality of tilt sensors for generating signals according to the tilts of the elevators of the plurality of elevators,
The rail deformation detection unit according to claim 1 Symbol mounting health diagnosis apparatus using signals from the plurality of tilt sensors as input signals. The soundness diagnostic apparatus according to claim 2 , wherein each of the tilt sensors generates a signal according to a movement of a car room with respect to a car frame of the elevator. The health diagnostic device according to claim 3 , wherein each of the inclination sensors generates a signal according to a distance between the corresponding car frame and the corresponding car room. The soundness diagnostic apparatus according to claim 3 , wherein each of the inclination sensors generates a signal according to a deformation of a vibration isolating member interposed between the corresponding car frame and the corresponding car room. Further comprising a plurality of displacement sensors for generating a signal according to a horizontal displacement of the elevator of each of the plurality of elevators,
The soundness according to any one of claims 2 to 5, wherein the rail deformation detection unit uses signals from the plurality of displacement sensors as input signals in addition to signals from the plurality of inclination sensors. Diagnostic device. The rail deformation detecting section, based on the deviation of the landing position of each car of said plurality of elevators, each of the detecting the state of deformation of the guide rail according to claim 1 Symbol soundness diagnosis of mounting of the plurality of elevators apparatus. Based on the deformation state of the plurality of guide rails detected by the rail deformation detection unit that detects the deformation state of the plurality of guide rails of the elevator installed in the building for each guide rail, and the rail deformation detection unit And a health diagnostic device including a diagnostic unit for determining whether only the guide rail is deformed or the entire building is deformed .

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