JP2016069112A - Elevator device and earthquake temporary-restoration operation device of elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optimize an earthquake-time temporary restoration operation device by predicting oscillation amounts of long-length articles constituting an elevator at the occurrence of an earthquake, and raising a possibility of the automatic restoration of the earthquake-time temporary restoration device after automatic diagnosis operation.SOLUTION: In an elevator device which ascends or descends a car in a hoistway by winding or rewinding a rope linked with the car by a hoist, the elevator device comprises: an earthquake sensor which is arranged in the hoistway; and a long-length article oscillation amount determination device which determines oscillation amounts of long-length articles in the hoistway. When an earthquake is detected by the earthquake sensor, the long-length article oscillation amount determination device determines the oscillation amounts of the long-length articles on the basis of a long-length oscillation amount prediction map which predicts the oscillation amounts of the long-length articles in advance according to lengths of the long-length articles and a level of the earthquake.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an elevator apparatus, and more particularly to an earthquake temporary restoration operation apparatus that can quickly restore an elevator after an earthquake occurs.

  Elevators are generally designed to perform seismic control as a safety measure in the event of an earthquake. When an earthquake detector installed in a building detects an earthquake of a certain magnitude or greater, seismic control operation is performed. By doing so, the elevator car in operation is suspended and controlled to the nearest floor.

  When restoring an elevator that has been suspended due to seismic control operation, an operator (maintenance worker) heads for the site, conducts diagnostic operation on the elevator, confirms whether there is any abnormality, and determines whether it can be restored. Is going.

  However, in large-scale earthquakes (with a seismic intensity of about 5) that have occurred frequently in recent years, there has been a delay in restoration due to many elevators shutting down at the same time.

  Therefore, in order to shorten the time required for recovery, a temporary recovery operation device at the time of earthquake that automatically performs diagnostic operation and temporarily recovers has been adopted.

  As a background art in this technical field, for example, there is a technique such as Patent Document 1. In Patent Document 1, “a vibration analysis model database for storing a vibration analysis model of an elevator or a building in which the elevator is installed, an index relating to long-period ground motion of an earthquake, and a history of information indicating whether or not the elevator is damaged by the earthquake are stored. A maintenance response history database, a damage coefficient calculation unit for obtaining a damage coefficient that is a coefficient for correcting an error of the vibration analysis model based on the maintenance response history database, the index, the damage coefficient, and the vibration analysis model. An elevator earthquake damage prediction apparatus including an elevator damage prediction unit that predicts the possibility of damage to an elevator based on the above "is disclosed.

JP 2011-57420 A

  If the building continues to shake at the primary natural frequency when an earthquake occurs, the long objects that make up the elevator will resonate with the shaking of the building, resulting in a large amplitude and contact with the equipment in the elevator hoistway to damage the equipment. May cause such as.

  According to the above-mentioned patent document 1, the possibility that an elevator will resonate with long-period ground motion and cause damage is predicted early after the occurrence of an earthquake, taking into account past damage situations without installing a seismometer in each building. be able to.

  However, even with the current progress in earthquake prediction research, it is difficult to predict the magnitude of future earthquakes from past damage situations without using a seismometer. Earthquakes that cause damage rarely occur in the same place. For example, trench-type earthquakes are said to occur once every few decades, and inland earthquakes occur once every several hundred to several thousand years. As a result, future earthquakes are based on very few data. Therefore, it is difficult to increase the accuracy.

  The present invention predicts the amount of vibration at the time of earthquake occurrence of each long object constituting the elevator, and raises the possibility of automatic recovery after the automatic diagnosis operation in the temporary recovery operation device at earthquake, thereby enabling temporary recovery operation during earthquake The purpose is to optimize the device.

  The present invention is an elevator apparatus that raises or lowers the car in the hoistway by winding or unwinding a rope linked to the car with a hoisting machine, and the elevator apparatus is installed in the hoistway. And a long object shake amount determination device for determining a shake amount of a long object in the hoistway, wherein the long object shake amount determination device is based on the earthquake sensor. Determining the shake amount of the long object based on a long object shake amount prediction map in which the shake amount of the long object is predicted in advance according to the length of the long object and the level of the earthquake. Features.

  Further, the present invention is an earthquake temporary restoration operation device of an elevator device that raises or lowers the car in a hoistway by winding or unwinding a rope linked to the car by a hoisting machine, The elevator apparatus includes an earthquake detector provided in the hoistway and a long object shake amount determination device that determines a shake amount of a long object in the hoistway, and the long object shake amount The determination device is based on a long object shake amount prediction map in which the shake amount of the long object is predicted in advance according to the length of the long object and the level of the earthquake when the earthquake is detected by the earthquake detector. It is characterized by determining the shake amount of an object.

  According to the present invention, the amount of vibration at the time of occurrence of an earthquake of each long object constituting the elevator is predicted, and the possibility of automatic recovery after the automatic diagnosis operation in the temporary recovery operation device during earthquake is increased. The recovery operation device can be optimized.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a flowchart at the time of operation | movement of the conventional temporary restoration operation apparatus at the time of an earthquake. It is a flowchart at the time of operation | movement of the temporary restoration operation apparatus at the time of an earthquake in one Embodiment of this invention. It is a figure which shows the run-out model of the long thing which comprises an elevator. It is a long object shake amount prediction map of the temporary restoration operation device at the time of earthquake in one embodiment of the present invention. It is a figure which shows the example of arrangement | positioning of each elongate object which comprises an elevator.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a flowchart of the operation of the conventional temporary restoration operation device at the time of earthquake.

  In the earthquake temporary restoration operation device, when an earthquake occurs in step S1, the elevator is stopped at the nearest floor in step S2, and the magnitude of the earthquake is determined in steps S3 and S4.

  In the case where the seismometer, that is, the seismic detector is less than low Gal in step S3, the elevator is automatically returned in step S11.

  In step S3, if the seismic detector becomes low Gal or higher, and if in step S4 the seismic detector becomes less than high Gal, check whether the safety device is operating in step S5. The operation is stopped at S9, but if there is no operation, the automatic diagnosis operation is started at Step S6. After confirming whether there is an abnormality at Step S7, when there is an abnormality, the operation is stopped at Step S9, and there is no abnormality. At this time, the automatic diagnosis operation in step S6 is terminated, and the temporary restoration is automatically performed in step S8.

  If the earthquake detector becomes low Gal or higher in step S3 and the earthquake detector becomes high Gal or higher in step S4, the elevator operation is stopped in step S9.

  With this earthquake temporary restoration operation device, when an earthquake with a seismic intensity of less than 5 occurs, the elevator will automatically perform diagnostic operation after a certain period of time after the passenger stops at the nearest floor and evacuates passengers. It can be automatically restored temporarily.

  FIG. 2 shows a flowchart of the operation of the earthquake temporary restoration operation apparatus in the present embodiment.

  The operation of the earthquake temporary restoration operation apparatus in the present embodiment is performed in steps S5 and S6 in the operation of the conventional earthquake temporary restoration operation apparatus shown in FIG. It differs from the operation | movement of the conventional temporary restoration operation apparatus at the time of an earthquake in having step S12 which judges these.

  In step S12, it is determined whether or not the long object shake amount is large. If the shake amount is large, the operation is stopped in step S9. If the shake amount is small, the automatic diagnosis operation is started in step S6.

  FIG. 3 shows a runout model of a long object constituting the elevator. In FIG. 3, the main rope 4 is used as an example of a long elevator.

  In FIG. 3, the car 2 is connected to the counterweight 3 via the main rope 4, and moves up and down in the hoistway at a predetermined operating speed and stops. A machine room 5 in which a hoisting machine or the like of the main rope 4 is installed is provided at the upper part of the elevator 1 provided in the building.

  On the floor of the machine room 5 or the bottom of the hoistway, a so-called pit is provided with a seismometer 6 serving as an earthquake detector.

  The analysis of the long object shake amount 7 is performed using a one-mass point one-degree-of-freedom model. In order to make the shake amount in the present invention safe, in the analysis, the building swing condition 8 (input waveform) is analyzed as a sine wave with a constant excitation force. This is because in an actual earthquake, the upper limit value does not keep constant. In addition, the amount of shake of the long object when the natural period of each long object constituting the elevator is matched with the natural period of the building is evaluated. However, if the natural period of the long object is larger than the natural period of the building, the shake amount is evaluated by the natural period of the building.

  FIG. 4 is a long object shake amount prediction map 9 of the temporary restoration operation device at the time of earthquake in the present embodiment. Using the above-mentioned long object shake amount prediction model, the predicted value of the shake amount with respect to the length (L) and the earthquake level (Gal value) of each long object constituting the elevator is mapped. The length of the long object is calculated from the natural period. Based on this map, the shake amount is predicted from the natural period of each long object and the level of earthquake.

  FIG. 4 shows an example of a building having a natural period of 3 s (seconds), and this map is input to the temporary restoration operation device during an earthquake for each natural period.

  FIG. 5 shows an arrangement example of each long object and various appliances of a standard elevator. FIG. 5 is a plan view (top view) of the elevator. In FIG. 5, the code | symbol 10 has shown each elongate object which comprises elevators, such as a main rope, a governor rope, a tail cord, and a compensation chain.

  At the time of the earthquake occurrence or immediately after the occurrence of the earthquake, using the shake amount predicted by the long-object shake amount prediction map 9 of FIG. 4, in the operation flow of FIG. Determine if there is no interference.

  In the arrangement of each long object and various instruments shown in FIG. 5, the amount of shake is small when each long object does not interfere with the equipment in the hoistway, and the automatic diagnosis operation is operated in the temporary restoration operation device at the time of earthquake, When each long object interferes with equipment in the hoistway, the amount of shake is large, and the elevator is stopped without operating the automatic diagnosis operation.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Elevator provided in building, 2 ... Riding car, 3 ... Counterweight, 4 ... Main rope, 5 ... Machine room, 6 ... Seismometer, 7 ... Long run-out amount, 8 ... Building shaking condition , 9: Long object shake amount prediction map, 10: Long object.

Claims (9)

An elevator device that raises or lowers the car in a hoistway by hoisting or unwinding a rope linked to the car by a hoisting machine,
The elevator apparatus includes an earthquake detector provided in the hoistway,
A long object shake amount determination device for determining the shake amount of a long object in the hoistway,
The long object shake amount determination device is a long object shake amount prediction map that predicts the shake amount of a long object in advance according to the length of the long object and the level of the earthquake when the earthquake is detected by the earthquake detector. Based on the above, the amount of deflection of the long object is determined.   2. The elevator according to claim 1, wherein the long object shake amount prediction map predicts a shake amount of the long object from a natural period of each long object constituting the elevator apparatus and an earthquake level. apparatus.   When the long object shake amount determination device determines that the long object and the device in the hoistway are in contact with each other, the operation of the elevator device is stopped, and the long object and the device in the hoistway The elevator apparatus according to claim 1, wherein automatic diagnosis operation of the elevator apparatus is started when it is determined that the two do not contact each other.   The long object shake amount determination device determines a long object shake amount when the natural period of each long object coincides with a period of a building with respect to the catch of the long object. Item 3. The elevator apparatus according to item 1 or 2. A temporary restoration operation device at the time of earthquake of an elevator device that raises or lowers the car in a hoistway by winding or unwinding a rope linked to the car by a hoisting machine,
The elevator apparatus includes an earthquake detector provided in the hoistway,
A long object shake amount determination device for determining the shake amount of a long object in the hoistway,
The long object shake amount determination device is a long object shake amount prediction map that predicts the shake amount of a long object in advance according to the length of the long object and the level of the earthquake when the earthquake is detected by the earthquake detector. Based on the above, the earthquake temporary restoration operation device for an elevator apparatus, wherein the amount of shake of the long object is determined.   The elevator according to claim 5, wherein the long object shake amount prediction map predicts a shake amount of the long object from a natural period of each long object constituting the elevator apparatus and an earthquake level. Equipment for temporary restoration operation in the event of an earthquake.   When the long object shake amount determination device determines that the long object and the device in the hoistway are in contact with each other, the operation of the elevator device is stopped, and the long object and the device in the hoistway The temporary restoration operation device at the time of earthquake of the elevator device according to claim 5 or 6, wherein automatic diagnosis operation of the elevator device is started when it is determined that the two do not contact each other.   The long object shake amount determination device determines a long object shake amount when the natural period of each long object coincides with a period of a building with respect to the catch of the long object. Item 7. An emergency restoration operation device for an elevator apparatus according to Item 5 or 6.   6. The long object shake amount determination device determines a shake amount of at least one long object among a main rope, a governor rope, a tail cord, and a compensation chain constituting an elevator apparatus. Or the temporary restoration operation apparatus at the time of the earthquake of the elevator apparatus of 6.

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