JP6223799B2 - Elevator speed control method - Google Patents

Description

  The present invention relates to an elevator for use in an intermediate seismic isolated building having a seismic isolation structure on an intermediate floor, wherein the operation speed of a car passing through the seismic isolation structure is controlled to a predetermined rated speed or less when an earthquake occurs. The present invention relates to a speed control method.

  The intermediate seismic isolation building is divided into a high-rise part and a low-rise part via the seismic isolation structure provided on the intermediate floor, so that even if the low-rise part vibrates greatly when an earthquake occurs, it is installed via the seismic isolation structure part. Damping the vibrations to the high-rise areas that are being built will make the buildings safe and the residents safe. Intermediate seismic isolation buildings are mainly used for high-rise buildings and skyscrapers with large amplitude on the top floor. The elevators used for such high-rise buildings and high-rise buildings are high-speed elevators or ultra-high-speed elevators, and the operation speed of the car reaches a high-speed region (over 150 m / min).

  The guide rails installed in the high-rise part and low-rise part are connected to the guide rails installed in the seismic isolation structure part, and the elevator car runs continuously through the seismic isolation structure part.

  In addition, regarding the control operation when an earthquake occurs in an elevator system, if an earthquake is detected, the car is moved to the nearest floor where it can be stopped and stopped. It is prescribed to stop.

  Conventionally, in an elevator used for an intermediate seismic isolated building having a seismic isolation structure, the rated speed (maximum speed) of the car operation speed across all levels of the building is a speed at which the elevator can be decelerated to a predetermined speed at a predetermined time. Is set. In this case, an appropriate rated speed is selected so as to ensure safety in the event of an earthquake and to reduce the speed to a predetermined speed so as not to cause discomfort to the passengers.

  As the predetermined time in this case, for example, the initial fine movement time from the detection of the P wave that is the initial fine movement of the seismic wave to the arrival of the S wave that is the main movement is used. Further, as the predetermined speed, a low-speed maintenance operation speed or the like used during the maintenance operation is used.

  When an earthquake occurs, the car is quickly decelerated from the rated speed to the specified speed within the initial tremor period from the time of the earthquake detection, and is safely stopped at the nearest floor of the intermediate seismic isolation building.

  In an elevator used for an intermediate seismic isolated building having a seismic isolation structure, conventionally, as shown in Patent Document 1, it is avoided that the elevator car is stopped at the seismic isolation structure having a large horizontal swing when an earthquake occurs. However, it has been proposed to ensure the safety of passengers and prevent damage to equipment such as a car.

  In Patent Document 1, the control means for controlling the control operation of the elevator is the vehicle position / speed / direction information and the position of the seismic isolation structure in the control operation for stopping the car at the nearest floor when the shaking of the earthquake is detected. Based on the information and the car braking distance information at the time of emergency stop, operation control is performed so as to avoid the car from stopping at the seismic isolation structure. At this time, the car is controlled so as to pass through the seismic isolation structure and stop at the nearest floor, or stop before the seismic isolation structure.

  Further, as shown in Patent Document 2, in an elevator installed in a building composed of a low-rise part, a high-rise part, and a seismic isolation device, an earthquake detection means, a car position / direction detection means, and a seismic isolation structure part location storage means And a car operation control means for controlling the operation of the car based on the detection results of the car position / direction detection means and the position of the seismic isolation structure. By deciding whether to pass the seismic isolation structure before arriving at the floor and stopping, it is determined from the current position of the car, the traveling direction and the position of the seismic isolation structure, so that the operation control of the elevator is highly safe. Known to be able to obtain a method

JP 2011-26076 A JP 2004-75354 A

  However, in Patent Document 1 and Patent Document 2 described above, how to control the passing speed of the car in the seismic isolation structure is not studied, and currently it corresponds to an intermediate seismic isolation building. In such an elevator, no solution has been proposed as to what kind of rated speed the car traveling speed when passing through the seismic isolation structure is controlled.

  The present invention controls an operation speed of a car passing through a seismic isolation structure so as not to exceed a predetermined rated speed in an elevator used in an intermediate seismic isolation building having a seismic isolation structure on an intermediate floor of the building. Thus, it is possible to provide a speed control method for an elevator that has a simple configuration and decelerates to a safe speed without causing discomfort to passengers.

The present invention is an elevator having a car, a hoist that drives the car, and a control device that controls the operation speed of the car, and is used for an intermediate seismic isolation building having a seismic isolation structure on the intermediate floor. In the elevator speed control method, the rated speed of the car operation speed passing through the seismic isolation structure is determined by the elevator specification conditions such as the assumed earthquake scale, car weight, hoisting machine performance, etc. It is set as an operation speed that can be decelerated to the emergency operation speed during the initial fine movement time T before the movement arrives, and the car operation speed after passing through the seismic isolation structure part is determined as the car in the seismic isolation structure part. It is characterized by being set to a value larger than the rated speed .

  According to the present invention, in the speed control method for an elevator used for an intermediate seismic isolation building having an isolation structure on an intermediate floor, the rated speed of the operating speed of a car passing through the isolation structure is determined by the main motion of the seismic wave. By setting it as a driving speed that can be decelerated to a safe emergency driving speed during the initial tremor time T before arrival, the car in the seismic isolation structure at the time of the earthquake without reducing the overall operating efficiency of the elevator And it is possible to ensure the safety of passengers and to slow down safely without causing discomfort to the passengers.

It is a schematic diagram which shows the basic composition of the elevator of this invention. It is a wave form diagram which shows the seismic waveform of the Kobe wave of the 1995 Hyogoken Nanbu Earthquake. It is a schematic diagram which shows the structure of the intermediate seismic isolation building where the elevator of this invention is installed. It is a speed diagram which shows the elevator speed in Example 1 of this invention. It is a speed diagram which shows the elevator speed in Example 2 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram showing a basic configuration of an elevator according to the present invention. In FIG. 1, 1 is an elevator provided in an intermediate seismic isolation building having a seismic isolation structure. The car 4 is connected to the counterweight 5 via the main rope 3, and the hoisting machine 2 moves up and down in the hoistway 7 at a predetermined operation speed and stops. 8 is a seismic isolation structure having a seismic isolation device provided on an intermediate floor of an intermediate seismic isolation building. C is a control device that controls the driving speed of the hoisting machine 2 to control the car operating speed.

  FIG. 2 is a waveform diagram showing the seismic waveform of the Kobe wave in the 1995 Hyogo-ken Nanbu Earthquake. With reference to FIG. 2, a method for determining a rated speed in an elevator corresponding to the intermediate seismic isolation building of the present invention will be described. In the 1995 Hyogoken-Nanbu Earthquake, which is a direct earthquake, when the Kobe Meteorological Observatory detects seismic waves, the so-called initial tremor time T from the initial tremor (P wave) arrival to the main motion (S wave) arrival is about 3 seconds. is there.

  Based on this data, the rated speed, which is the maximum value of the elevator car operating speed in the seismic isolation structure of the intermediate seismic isolation building, is detected by detecting the main motion (S wave) and the horizontal displacement of the seismic isolation structure. It is necessary to set the value so that it can be quickly decelerated to a predetermined emergency driving speed before it grows, that is, during the initial fine movement time T.

  FIG. 3 is a schematic diagram showing the configuration of an intermediate seismic isolation building in which the elevator of the present invention is installed. In FIG. 3, 6 is an intermediate seismic isolation building where an elevator corresponding to the seismic isolation structure of the present invention is installed, 7 is a hoistway, 8 is a seismic isolation structure, 9 is the number of floors of the intermediate seismic isolation building, and 10 is an elevator. It is an entrance / exit. A circle indicates each floor. FIG. 3 shows an example in which the number of floors of the intermediate seismic isolation building is 30 floors and the base isolation structure is installed on the fourth floor as an example of the intermediate base isolation building.

  FIG. 4 is a speed diagram showing the elevator speed in the first embodiment. FIG. 4 illustrates a method of controlling the rated speed of the car operation speed in the seismic isolation structure to a predetermined value in an elevator corresponding to an intermediate seismic isolation building. In addition, FIG. 4 shows the case where the intermediate seismic isolation building of FIG. 3 is assumed as an example.

In FIG. 4, the horizontal axis represents the car operation speed, and the vertical axis represents the number of building floors. 11 is the floor where the seismic isolation structure 8 is provided (here, the fourth floor), 12 is the upper floor of the seismic isolation structure, 13 is the car operating speed, 14 is the rated speed (m / min), and 15 is the rated speed. It is the speed of the car that exceeds the limit.

  As shown in FIG. 4, the car operating speed 13 is accelerated from the starting floor (the first floor) to the floor 11 (the fourth floor) provided with the seismic isolation structure 8 from the speed 0 to the rated speed.

  Next, on the floor 11 where the seismic isolation structure 8 is provided, the rated speed, which is the maximum value of the car operating speed in the seismic isolation structure of the intermediate seismic isolation building, is quickly increased to a safe speed during the initial tremor time T. The speed of the vehicle can be decelerated, and the operation speed of the car is controlled by the controller C. The rated speed of the car in the seismic isolation structure is determined to have various values depending on the assumed earthquake scale, which is a precondition, and elevator specification conditions such as car weight and hoisting machine performance.

  Further, the upper floor 12 of the seismic isolation structure section is operated at a high rated speed that exceeds the rated speed of the seismic isolation structure section 8. In a high-rise building composed of an intermediate seismic isolation building having such a seismic isolation structure, the car operation speed of each elevator floor excluding the seismic isolation structure reaches a high speed. On the other hand, the rated speed of the car operation speed when passing through the seismic isolation structure 8 is set to a speed that can be reduced to a safe speed.

  By controlling the speed as described above, the elevator is controlled so that the car passing speed of the seismic isolation structure is operated below the rated speed of the seismic isolation structure without lowering the operation efficiency of the entire elevator. be able to.

  For this reason, it is possible to sufficiently reduce passenger discomfort caused by the acceleration due to the earthquake and the acceleration due to the rapid deceleration of the car, and further reduce the damage to the car that may occur when passing through the seismic isolation structure. .

  In addition, since it does not require complicated control to avoid the seismic isolation structure as shown in the conventional example, it is possible to simplify the configuration of the control device including various sensors, and a highly practical control method Can be provided.

  FIG. 5 is a speed diagram showing the elevator speed in the second embodiment of the present invention. As shown in FIG. 5, when the car is started from a stop state, the car operating speed 10 is from the departure floor (first floor) to the floor 11 (fourth floor) where the seismic isolation structure 8 is provided. Control to:

  Next, on the floor 11 where the seismic isolation structure 8 is provided, the above-mentioned rating that allows the elevator car operating speed in the seismic isolation structure of the intermediate seismic isolation building to be quickly reduced to the maintenance operation speed during the initial fine movement time T. Set a value smaller than the speed and operate the car. In this case, although the elevator operation efficiency is slightly reduced, the car can be decelerated more safely and comfortably than in the first embodiment.

  Furthermore, in the upper floor 12 of the seismic isolation structure section, by operating at a high speed exceeding the rated speed in the above seismic isolation structure section, the traveling speed of the seismic isolation structure section can be reduced without reducing the operation efficiency of the entire elevator. The elevator can be controlled so as to be lower than the rated speed of the seismic isolation structure.

1: elevator 2: hoisting machine 3: main rope 4: car 5: counterweight 6: intermediate seismic isolation building 7: hoistway 8: seismic isolation structure 9: building floor number 10: building entrance 11: seismic isolation structure Level 12: Seismic isolation structure Upper floor 13: Car operation speed 14: Rated speed 15: Car operation speed exceeding the rated speed C: Control device

Claims (5)

Elevator having a car, a hoist for driving the car, and a control device for controlling the operation speed of the car, and used for an intermediate seismic isolated building having a seismic isolation structure on an intermediate floor In the speed control method in
The rated speed of the car operating speed that passes through the seismic isolation structure is determined by the elevator specification conditions such as the assumed earthquake scale, car weight, hoisting machine performance, etc. Set as the operation speed that can be decelerated to the emergency operation speed during time T ,
A speed control method for an elevator , wherein the traveling speed of the car after passing through the seismic isolation structure is set to a value larger than a rated speed of the car in the seismic isolation structure . The elevator speed control method according to claim 1,
An elevator speed control method, wherein an operation speed of the car in the seismic isolation structure is set to be equal to or less than the rated speed. The elevator speed control method according to claim 1 or 2,
The elevator speed control method characterized in that the emergency operation speed that decelerates during the initial fine movement time T before the main movement of the seismic wave is set to the maintenance operation speed of the elevator. In the elevator speed control method according to any one of claims 1 to 3 ,
An elevator speed control method, wherein the initial fine movement time T is about 3 seconds. An elevator speed control method according to 請 Motomeko 1 to 4 either,
An elevator speed control method, wherein the elevator car decelerated to the emergency operation speed when an earthquake occurs moves to the nearest floor of the intermediate seismic isolated building and stops.

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