JP2011246270A - Soundness confirmation device of elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soundness confirmation device of an elevator device for monitoring and confirming the soundness of a rope swing detection sensor as an elevator device.SOLUTION: The soundness confirmation device periodically confirms a contact output in order to monitor the soundness of a plurality of elevator devices 9, and confirms the soundness by discriminating a soundness confirmation signal from an output signal under an abnormal condition. The soundness confirmation device includes a plurality of elevator devices 9 for individually setting the interval of each soundness confirmation signal output pulse and discriminating the soundness confirmation signal from the output signal under abnormal condition, a device signal line 10 connecting the plurality of elevator devices in series, and a signal receiving device 16 for receiving the soundness confirmation signal or the output signal under the abnormal condition transmitted from the plurality of elevator devices via the device signal line from a contact signal input section. The signal receiving device counts the number of contact output pulses per unit time, measures contact output time intervals, and determines a faulty device in accordance with the measurement value.

Description

  The present invention relates to a device for confirming the soundness of elevator equipment, and in particular, rope swing detection as an elevator device that is an independent drive device installed in an automatic diagnosis and restoration system during an earthquake and detects an abnormality of a rope that is easily affected by shaking. It monitors and confirms the health of the sensor.

  Conventionally, in high-rise buildings with a seismic intensity of 3 to 4 that are more than 100 km apart and have a long natural period of building shake, such as buildings with a vertical travel distance of 200 m and up to about 50 floors, the building shake resonates with the earthquake motion, and the shake is further increased. There is a problem that the rope of the elevator is caught by the hoistway equipment. Normally, in the automatic earthquake recovery operation, the elevators automatically diagnose and restore the presence of equipment abnormalities for medium-scale earthquakes with a seismic intensity of 4 to 5, but long-period vibrations occur when applied to high-rise buildings. If it is carried out without considering the presence or absence of the device, there is a possibility that the device may be damaged.

  In addition, as a conventional technology, when a long-period earthquake occurs, it is equipped with a long-period earthquake detection device that detects a long-period earthquake, and when a long-period earthquake is detected by the long-period earthquake detection device, the elevator that controls the elevator (See, for example, Patent Document 1). Moreover, the elevator control apparatus which detects the strand break of an elevator rope and controls an elevator based on the break detection result is known (for example, refer patent document 2). Moreover, after stopping a car due to a disaster, there is known an elevator inspection method that determines whether there is an abnormality in the elevator apparatus while the car is running (see, for example, Patent Document 3). In addition, it is provided near the main rope exit of the sheave of the hoisting machine, and includes rope displacement detection means for measuring the rope displacement in the vicinity of the main rope exit of the sheave. The rope displacement detection means is in the vicinity of the main rope exit of the sheave. Measure the rope position in the normal time and store it in advance, measure the rope position near the main rope exit of the sheave after a certain period of time since the elevator stopped in earthquake control operation at the time of the earthquake, A catch detection device for elevator ropes that detects occurrence of rope catch when a threshold value is exceeded as compared with the main rope position is known (see, for example, Patent Document 4).

JP 2007-320719 A JP-A-8-301543 JP 2007-112537 A JP 2008-184253 A

Long-period vibration detectors that detect long-period earthquakes used in conventional elevator seismic control operation systems already exist, but sensors that detect slow shaking with a period of several to tens of seconds are used. It is relatively expensive.
In addition, in the conventional elevator rope hook detection device, the rope measuring the rope displacement of the main rope near the car side main rope outlet of the hoisting sheave and near the counterweight side main rope outlet of the baffle Since the rope displacement detection sensor is installed as a displacement detection means, and the main rope is usually composed of a plurality of ropes, the measurement unit of the rope displacement detection sensor measures multiple sensors in order to support multiple ropes. Since the configuration includes a part, there is a problem that the configuration becomes complicated.

  Therefore, instead of a relatively expensive long-period vibration sensor, by attaching an inexpensive rope sway detection sensor to the rope detachment prevention guide attached to the hoisting machine etc. as a seismic anti-seismic measure, rope sway due to long-period vibration can be prevented. There has been proposed a rope swing detection device for an elevator which is to be detected. This rope sway detector includes a rope detachment prevention guide provided in the vicinity of a hoisting machine on which a rope of an elevator is wound, a deflector, a compensatory, a car turnover car, and a rope detachment prevention guide or in the vicinity thereof. It is provided with a rope sway detection sensor that detects rope sway or rope hooking due to long-period vibration as vibration data, and this rope sway detection sensor is an independent drive device and has a problem with soundness as elevator equipment It is necessary to constantly monitor and confirm whether there is any.

  The present invention has been made to solve the above-described problems, and is an independent drive device installed in an earthquake automatic diagnosis and recovery system that detects an abnormality of a rope that is easily affected by shaking. The present invention provides a soundness confirmation device for elevator equipment that monitors and confirms the soundness of a rope swing detection sensor.

  In the elevator equipment soundness confirmation device according to the present invention, in order to monitor the soundness of a plurality of elevator equipment that continue to be driven independently from the outside, the contact output is periodically checked, The soundness confirmation signal and the output signal at the time of abnormality are distinguished from each other, and the interval of each soundness confirmation signal output pulse can be set individually. A plurality of elevator devices which are independent drive devices for distinguishing output signals at the time, a device signal line connecting the plurality of elevator devices in series, and a soundness confirmation signal transmitted from the plurality of elevator devices via the device signal line or A signal receiving device that inputs an output signal at the time of abnormality from the contact signal input unit, the signal receiving device counts the number of contact output pulses per unit time, and contacts output time interval Measured is obtained by allowing determine faulty equipment by the measured value.

  In addition, the signal receiving apparatus sets the intervals of the soundness confirmation signal output pulses individually so that the output pulses do not overlap.

  In addition, the signal receiving device determines that there is a malfunctioning device when the measured value of the contact output time interval is less than the specified value.

  The plurality of elevator devices are rope sway detectors provided in the hoisting machine, the compensatory and the car turning wheel, respectively, and the signal receiving device is provided in the elevator control panel.

  According to the present invention, it is possible to check the soundness of a plurality of elevator equipment that continue to be driven in an independent state from the outside with one signal receiving device, and any of the connected equipments has failed. Can be detected quickly.

BRIEF DESCRIPTION OF THE DRAWINGS It is a system block diagram which shows the whole structure of the elevator of the one-to-one roping system provided with the soundness confirmation apparatus of the elevator apparatus in Example 1 of this invention. It is a block diagram which shows the structure of the soundness confirmation apparatus of the elevator apparatus in Example 1 of this invention. It is explanatory drawing which shows having distinguished the output signal at the time of abnormality, and the output signal of soundness confirmation by the soundness confirmation apparatus of the elevator apparatus in Example 1 of this invention. It is explanatory drawing which shows the pulse output series by the side of a signal receiver in case all the elevator apparatus which requires soundness confirmation is three, and is operating normally. It is explanatory drawing which shows the pulse output series by the side of a signal receiver in case the elevator apparatus which requires soundness confirmation is three, and the first one is operating abnormally. It is explanatory drawing which shows the pulse output series by the side of a signal receiver in case the elevator apparatus which requires soundness confirmation is three, and one middle is operating abnormally. It is explanatory drawing which shows the pulse output series by the side of a signal receiver in case the elevator apparatus which requires soundness confirmation is three, and the last one is operating abnormally. It is a graph which totals and shows the pulse number count value obtained by the soundness confirmation apparatus of the elevator apparatus in Example 1 of this invention. It is a flowchart which shows the flow of the abnormal alerting | reporting by the independent drive device side which is a part of the soundness confirmation apparatus of an elevator apparatus, and the determination of soundness confirmation. It is a flowchart which shows the flow of the abnormality detection operation | movement by the signal receiver side which is a part of the soundness confirmation apparatus of an elevator apparatus, and a normal determination operation | movement. It is a flowchart which shows the flow of the determination processing operation | movement by the side of the signal receiver which is a part of the soundness confirmation apparatus of an elevator apparatus. It is a system block diagram which shows the whole structure of the elevator of a 2 to 1 roping system provided with the soundness confirmation apparatus of the elevator apparatus in Example 2 of this invention.

Example 1.
FIG. 1 is a system configuration diagram showing the overall configuration of an elevator of a one-to-one roping system provided with a soundness confirmation device for an elevator device according to the present invention. As shown in FIG. 1, this elevator is wound around an elevator car 1, a counterweight 2, a hoisting machine 3, a deflector 4, a hoister 3 and a deflector 4, and both ends thereof. The main rope 5 connected to the upper part of the cage 1 and the upper part of the counterweight 2, the compensatory 6, and the compensator 6 are wound around the lower ends of the car 1 and the lower part of the counterweight 2. Compensation rope 7 connected to each other, elevator control panel 8 incorporating the signal receiving device according to the present invention, hoisting machine 3 and compensation sheave 6 are respectively provided, and independent driving is continued independently from the outside. A rope swing detection device 9 as an elevator device that is a driving device, and a device signal line 10 that transmits an output signal of the rope swing detection device 9 to a signal reception device of the elevator control panel 8. That. In addition, the rope sway detector 9 as an elevator device, which is an independent drive device, is installed in a total of four places, two places on the entry / exit side of the main rope 5 of the hoisting machine 3 and two places on the entry / exit side of the compen- sive rope 7 of the compensator 6. Has been. The specific configuration of the rope sway detector 9 is substantially the same as that described in Japanese Patent Application No. 2009-271115 previously filed by the applicant of the present application, and thus detailed description thereof is omitted. .

FIG. 2 is a configuration diagram showing the configuration of the soundness confirmation device for elevator equipment according to the present invention.
A rope swing detection device 9 as an elevator device that is an independent drive device includes a sensor 11 that detects rope swing, a signal processing unit 12 that processes a signal from the sensor 11, a soundness confirmation signal output interval setting unit 13, and signal processing. The output determination unit 14 for inputting the signal from the unit 12 and the signal from the soundness confirmation signal output interval setting unit 13 to distinguish the output signal at the time of abnormality from the signal for soundness confirmation, and the output of the output determination unit 14 A contact output unit 15 for outputting as a contact output pulse is provided. The rope sway detector 9 can individually set intervals of soundness confirmation signal output pulses with different values, and the ratio of the values of the intervals is a prime number ratio. The contact output unit 15 of each rope swing detection device 9 is connected in series by the device signal line 10, and all contact outputs of the rope swing detection device 9 are transmitted to the signal receiving device 16 of the elevator control panel 8. The signal receiving device 16 includes a contact signal input unit 17, a contact input number measurement unit 18, and a failure determination unit 19. The signal receiving device 16 counts the number of contact output pulses per unit time (within a fixed period), and measures the contact output time interval. If the measured value is less than the specified value, it is determined that there is a malfunctioning device. In addition, this device estimates which device has failed.

FIG. 3 is an explanatory diagram showing that an abnormality output signal and a soundness confirmation output signal are distinguished from each other by the soundness confirmation device for an elevator apparatus according to the present invention.
It is necessary to distinguish the pulse length for abnormality detection and soundness confirmation. In other words, since both the output signal at the time of abnormality and the output signal for soundness confirmation are taken in by the same port of the signal receiving device 16, it can be dealt with by changing the pulse length for abnormality detection and soundness confirmation. For example, a pulse length of 500 ms is output when an abnormality occurs, and a pulse length of 150 ms is output for soundness confirmation. In this case, as shown in FIG. 3A, the signal receiving device 16 determines that there is an abnormality with an output signal of 400 ms or longer. As another method, the pulse length 150 ms is the same, and the pulse is continuously / discontinuously handled. For example, a pulse is output three times continuously at the time of abnormality, and a pulse is output once for soundness confirmation. In this case, as shown in FIG. 3B, the signal receiving device 16 determines that there is an abnormality with three consecutive output signals.

  FIG. 4 is an explanatory diagram showing a pulse output sequence on the receiving device side when there are three elevator devices (1 to 3) that require soundness check and all are operating normally. Here, all the devices (1-3) are outputting pulses normally, so if you look at the pulse output sequence on the signal receiving device side, you can see that there are no missing pulses anywhere, and normal operation It can be judged. FIG. 5 is an explanatory diagram showing a pulse output sequence on the receiving device side when there are three elevator devices that require soundness confirmation and the first one is operating abnormally. Here, since only the first device (pls1) does not output pulses normally, looking at the pulse output sequence on the signal receiving device side shows that only the first one pulse is missing. It can be determined that (pls1) is abnormal. FIG. 6 is an explanatory diagram showing a pulse output sequence on the receiving device side when there are three elevator devices that require soundness confirmation and one of the middle devices is operating abnormally. Here, since only the middle device (pls2) does not normally output pulses, looking at the pulse output sequence on the signal receiving device side reveals that only one middle pulse is missing. It can be determined that (pls2) is abnormal. FIG. 7 is an explanatory diagram showing a pulse output sequence on the receiving device side when there are three elevator devices that require soundness confirmation and the last one is operating abnormally. Here, since only the last device (pls3) does not normally output pulses, looking at the pulse output sequence on the signal receiving device side shows that only the last one pulse is missing. It can be determined that (pls3) is abnormal.

FIG. 8 is a graph showing the total number of pulse count values obtained by the soundness confirmation device for elevator equipment according to the present invention.
When the output intervals of the three elevator devices are 31 min, 67 min, and 89 min, respectively, the total number of signal outputs every 1000 min is counted. The count number in the case of normal is ○, the count number when the first device (abnormality 1), the middle device (abnormality 2), and the last device (abnormality 3) fail to output is “*”, It is represented by “+” and “x”.

FIG. 9 is a flowchart showing a flow of an abnormality report and soundness confirmation determination on the side of the rope sway detector 9 as an elevator device which is an independent drive device.
On the independent drive side, the soundness confirmation signal output interval setting unit 13 sets the interval (N) (step S1), initializes the timer count value (n) (step S2), and starts the timer count (step S1). S3). Next, when an abnormal report is detected in step S4, an abnormal report pulse is output (step S5). On the other hand, if no abnormal alarm is detected in step S4, the process proceeds to step S6, and if the timer count value (n) matches the interval (N), a soundness confirmation pulse is output (step S7).

FIG. 10 is a flowchart showing the flow of abnormality detection operation and normality determination operation on the signal receiving device side.
On the signal receiving device side, the timer count value (m) and the pulse number count value (k) are initialized (steps S11 and S12), and the timer count is started (step S13). Next, when the presence / absence of a pulse is detected in step S14 and an abnormal alarm is detected in step S15, an operation is performed when an abnormality is detected (step S16). On the other hand, if there is no abnormal report in step S15, the number of pulses for soundness confirmation is counted (step S17). If the count value (k) of the health check pulse is between the normal pulse number upper limit (kmax) and the normal pulse number lower limit (kmin) (step S18), the soundness check pulse is determined to be normal. (Step S). If the count value (k) of the soundness confirmation pulse is not between the normal pulse number upper limit (kmax) and the normal pulse number lower limit (kmin) in step S18, an operation is performed when a failure is detected (step S20). .

FIG. 11 is a flowchart showing the flow of determination processing operation on the signal receiving apparatus side.
On the signal receiving device side, if the count value (k) of the soundness confirmation pulse is larger than the upper limit number of normal pulses (kmax) (step S21), it is determined that there is an abnormal pattern 0 (noise mixing, soundness output function abnormality). (Step S22). If the count value (k) of the soundness confirmation pulse is not between the normal pulse number upper limit (kmax1) and the normal pulse number lower limit (kmin1) of the first device (step S23), the abnormal pattern 1 Is determined (step S24). If the count value (k) of the soundness confirmation pulse does not fall between the upper limit (kmax2) of normal pulses and the lower limit (kmin2) of normal pulses of the middle device (step S25), the abnormal pattern 2 Is determined (step S26). If the count value (k) of the soundness confirmation pulse is not equal to or greater than the lower limit number of normal pulses (kminL) of the last device (step S27), the abnormal pattern L is determined (step S28). If it is not the above, it is determined that there is no abnormality (step S29). In addition, the process which determines a failure pattern among the operation | movement at the time of a failure detection shows the case where there are L types of abnormality by noise mixing or abnormality of a soundness output function, and an apparatus failure.

Example 2
FIG. 12 is a system configuration diagram showing the overall configuration of the elevator of the 2-to-1 roping system provided with the soundness confirmation device for the elevator equipment according to the present invention. In the figure, the same or corresponding parts as those in FIG. In this elevator, as shown in FIG. 12, a car upturning wheel 20 is provided above the car 1. Further, a counterweight turning wheel 21 is provided at the upper portion of the counterweight 2. The car 1 and the counterweight 2 are wound around the car top turning wheel 20 and the counterweight top turning wheel 21 and are suspended by the main rope 5. The rope swing detection device 9 as an elevator device, which is an independent drive device, includes two places on the entry / exit side of the main rope 5 of the hoisting machine 3, two places on the entry / exit side of the compen- sion rope 7 of the compensator 6, and a car overturning car. A total of 6 of 2 places on the entrance / exit side are installed. In addition, a device signal line 10 for transmitting the output signal of the rope swing detection device 9 to the signal receiving device of the elevator control panel 8 is added for the car return car 20.

DESCRIPTION OF SYMBOLS 1 Elevator basket 2 Counterweight 3 Hoisting machine 4 Baffle 5 Main rope
6 Compensation
7 Compen rope 8 Elevator control panel 9 Rope sway detection device (independent drive device) as elevator equipment
10 device signal line 11 sensor 12 signal processing unit 13 soundness confirmation signal output interval setting unit
14 Output judgment unit
DESCRIPTION OF SYMBOLS 15 Contact output part 16 Signal receiver 17 Contact signal input part 18 Contact input number measurement part 19 Failure determination part
20 Car overturning car
21 Counterweight lifting car

Claims (5)

In order to monitor the soundness of a plurality of elevator equipment that continue to be driven independently from the outside, the contact output is periodically checked, and the soundness confirmation signal is distinguished from the output signal at the time of abnormality. In the equipment for confirming the soundness of elevator equipment that has confirmed the soundness by
The interval of each soundness confirmation signal output pulse can be individually set, and a plurality of elevator devices that are independent drive devices that distinguish the soundness confirmation signal and the output signal at the time of abnormality,
A device signal line for connecting the plurality of elevator equipment in series;
A signal receiving device for inputting a soundness confirmation signal transmitted from the plurality of elevator devices via the device signal line or an output signal at the time of abnormality from a contact signal input unit;
The signal receiving device counts the number of contact output pulses per unit time, measures the contact output time interval, and can determine the malfunctioning device based on the measured value. apparatus.   2. The apparatus for confirming the soundness of elevator equipment according to claim 1, wherein the signal receiving apparatus sets the interval of each soundness confirmation signal output pulse individually so that the output pulses do not overlap.   The apparatus for confirming the soundness of an elevator apparatus according to claim 1, wherein the signal receiving apparatus determines that there is a malfunctioning apparatus when a measured value obtained by measuring the contact output time interval is less than a specified value.   4. The elevator apparatus according to claim 1, wherein the plurality of elevator devices are rope sway detectors provided in the hoist and the compensator, respectively, and the signal receiver is provided in the elevator control panel. Elevator equipment soundness confirmation device described in 1.   The plurality of elevator devices are rope swing detection devices respectively provided in the hoisting machine, the compensatory and the car turning wheel, and the signal receiving device is provided in the elevator control panel. The soundness confirmation apparatus for elevator equipment according to any one of Items 3 above.

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