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Earthquake recovery apparatus for elevator

An elevator and earthquake technology, applied in transportation and packaging, elevators, etc., can solve problems such as the expansion of elevator damage

Inactive Publication Date: 2012-05-09
MITSUBISHI ELECTRIC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there is a possibility that the damage to the elevator may increase due to the automatic diagnosis operation.

Method used

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  • Earthquake recovery apparatus for elevator
  • Earthquake recovery apparatus for elevator
  • Earthquake recovery apparatus for elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0029] figure 1 It is a block diagram showing the earthquake recovery device for an elevator according to Embodiment 1 of the present invention. exist figure 1 Among them, 1 represents the elevator shaft installed in the building 2, and 3 represents the elevator machine room installed above the shaft 1. 4 represents the car that lifts in the hoistway 1, 5 represents the counterweight that lifts in the hoistway 1 and the car 4 in opposite directions, and 6 represents the main rope that hangs the car 4 and the counterweight 5 in the manner of hanging bottles. Reference numeral 7 denotes a driving sheave of a traction machine provided in the machine room 3 around which a part of the main rope 6 is wound.

[0030] 8 represents the accelerometer, that is, the S-wave detector, installed in the machine room 3, which is used to detect the lateral shaking generated by the building 2. In this S-wave detector 8, the acceleration level of the lateral vibration of the building correspon...

Embodiment approach 2

[0052] Figure 5 It is a flowchart showing the operation of the earthquake recovery device for elevators according to Embodiment 2 of the present invention. In Embodiment 1, the following situation has been described. The detection level of the long-period vibration detector 10 is set to two levels (low level (Lv1), high-level level (Lv2)). When a high-level (Lv2) rope swing amount is detected, the transition to the automatic diagnosis operation is not performed. In this embodiment, a case will be described in which the running speed of the elevator during the diagnostic operation (hereinafter also referred to as "diagnostic speed") is changed based on the amount of rope wobble detected by the rope wobble detection device during the automatic diagnostic operation. ).

[0053] Specifically, for the long-period vibration detector 10, the levels of the amount of lateral shaking of the rope are set to multiple levels. And the long-period vibration detector 10 operates by detect...

Embodiment approach 3

[0064] Image 6 It is a flowchart showing the operation of the earthquake recovery device for elevators according to Embodiment 3 of the present invention. In Embodiment 2, the case where the diagnosis speed is changed according to the amount of rope lateral vibration detected by the long-period vibration detector 10 when performing the automatic diagnosis operation was described. In the present embodiment, a case will be described in which the operation content (diagnostic content) of the diagnostic operation is changed based on the amount of rope wobble detected by the rope wobble detection device when the automatic diagnosis operation is performed.

[0065] Specifically, as in the second embodiment, the long-period vibration detector 10 sets the levels of the amount of rope lateral vibration to multiple levels, and the long-period vibration detector 10 outputs predetermined operation signals corresponding to the respective levels.

[0066] exist Image 6 In the figure, th...

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Abstract

The present invention provides an earthquake recovery apparatus for an elevator. when a rope of an elevator has a transversal swinging motion due to an earthquake swinging motion, it is capable of preventing a damage caused by implementing a diagnosis operation from enlarging reliably. As a settlement method, in the earthquake recovery apparatus, capable of automatically implementing a diagnosis operation after an earthquake and recovering the elevator as a normal operation when there is non abnormity in the automatic diagnosis operation, has a rope transversal swinging motion detection device (long-period oscillation detector (10) ) for detecting a transversal swinging motion amount of the rope when the elevator is used. Further, according to the detection result of the rope transversal swinging motion detection device, the motion of the automatic diagnosis operation is altered. For example, when a presetting level rope transversal swinging motion amount is detected by the rope transversal swinging motion detection device, the elevator will stop but switch into the automatic diagnosis operation.

Description

technical field [0001] The present invention relates to an earthquake recovery device for an elevator, which automatically performs a diagnosis operation after the earthquake control operation, and returns the elevator to normal operation when no abnormality is detected during the automatic diagnosis operation. Background technique [0002] Among the conventional elevators, there is an elevator in which an accelerometer (S-wave detector) is installed in the elevator machine room, and the elevator is shifted to earthquake control operation in accordance with the operation of the S-wave detector. In the elevator of this structure, the following method is generally adopted. The predetermined acceleration level of the lateral vibration of the building corresponding to the building height is preset for the S-wave detector. When the acceleration of the lateral vibration of the building is higher than the value, it is transferred to the earthquake control operation. [0003] In ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
Inventor 渡边诚治福井大树餐场纯一西山秀树
Owner MITSUBISHI ELECTRIC CORP
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