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Elevator Controls

A technology for control devices and elevators, which is applied in the field of elevator control devices and can solve problems such as car vibration and noise

Active Publication Date: 2015-12-23
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, if the operation continues while the cable is swinging, the car will vibrate and generate noise

Method used

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  • Elevator Controls
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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ）

[0024] figure 1 It is a figure which shows the structure of the elevator concerning 1st Embodiment. Now, assume a case where one elevator 11 is installed in a certain building 10 .

[0025] Such as figure 1 As shown, in the machine room 10a at the uppermost part of the building 10, a traction machine 12 which is a drive source of the elevator 11 is installed. In addition, in the elevator without a machine room, the hoisting machine 12 is installed in the upper part in the hoistway 10b. The so-called elevator without a machine room is an elevator without a machine room.

[0026] A main rope 13 is wound around the traction machine 12 . A car 14 is attached to one end of the main rope 13 , and a balance weight 15 is attached to the other end. In addition, a compensating pulley 16 is disposed at the lowermost portion of the lifting passage 10b, and ends of a compensating cable (compensating safety cable) 17 are attached to the lower parts of the car 14 and the counterweight 1...

no. 2 Embodiment approach ）

[0071] Next, a second embodiment will be described.

[0072] In the above-mentioned first embodiment, the description was given assuming that there is a damping floor in the running direction of the car 14, but depending on the position of the car 14 during running, the damping floor does not necessarily exist in the running direction. Therefore, in the second embodiment, a case where no damping layer exists in the running direction of the car 14 will be described.

[0073] In addition, since the basic configuration as the control device 22 is the same as that of the above-mentioned first embodiment, reference is made here to Figure 10 The processing work will be described.

[0074] Figure 10 It is a flowchart showing the processing operation of the elevator control device 22 in the second embodiment. In addition, the processing in steps S201 to S206 is the same as that in the above-mentioned first embodiment. Figure 7 The processing of steps S101 to S106 is the same. ...

no. 3 Embodiment approach ）

[0087] Next, a third embodiment will be described.

[0088] In the state where the cable swings, especially when the car 14 is facing the terminal floor (the uppermost floor or the bottom floor), as the car 14 approaches the terminal floor, the swing of the cable concentrates on the terminal floor, so the vibration of the car 14 and / or the incidence of noise becomes high. In the third embodiment, such vibration and / or noise due to the vibration of the cable generated at the terminal layer are reduced.

[0089] In addition, since the basic configuration as the control device 22 is the same as that of the above-mentioned first embodiment, reference is made here to Figure 12 The processing work will be described.

[0090] Figure 12 It is a flowchart showing a part of processing operations of the elevator control device 22 in the third embodiment. The flowchart, showing the Figure 7 Step S109 of or Figure 10 In step S210, the attenuation layer cable moves to the destinat...

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Abstract

The invention provides a control device for an elevator, which prevents increase of swinging of a cable rope and can safely continue providing operation service without being switched to controlled operation in a circumstance that a building shakes. The control device (22) for the elevator has a cable rope swing calculation part (31) which infers the swing quantity of the cable rope based on the shaking quantity of the building and the position of a lift car (14) which are detected by an acceleration sensor (23), an attenuation layer setting part (32a) which can set a floor where the swing of the cable rope is attenuated as an attenuation layer in a circumstance that the swing quantity of the cable rope is above a predetermined quantity, and an operation control part (32) which enables the lift car (14) to operate towards a target layer after cable rope attenuation operation in which the lift car (14) moves towards the attenuation layer in a circumstance that the attenuation layer set by the attenuation layer setting part (32a) exists in an operation direction of the lift car (14).

Description

technical field [0001] Embodiments of the present invention relate to a control device of an elevator that detects cable wobble accompanying shaking of a building due to an earthquake, strong wind, etc., and switches to controlled operation. Background technique [0002] If the building is high-rise, since the natural vibration frequency of the building is low, a resonance phenomenon is likely to occur during an earthquake and / or strong wind. Here, if the natural vibration frequency of the building coincides with the natural vibration frequency of the cables of the elevator installed in the hoistway, the cables will swing greatly due to resonance and come into contact with the equipment in the hoistway and / or the walls of the hoistway. The danger of a so-called "trapped accident". In addition, the elevator rope mentioned here includes a main rope (main rope) and / or a governor rope (governor rope). [0003] In order to prevent such accidents, recent elevators are equipped w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/02
Inventor 小泉润
Owner TOSHIBA ELEVATOR KK