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Elevator controller

A control device and elevator technology, which is applied in the field of elevator control devices, can solve problems such as the vibration of the car, the decrease of the gain of the winch, and the deterioration of the car ride, so as to speed up the change of the speed, suppress the lateral vibration, and prevent the ride. the worsening effect of

Active Publication Date: 2007-08-29
MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] However, since the gain of the hoist is decreased by increasing the frequency of the rotation speed change of the motor, the desired driving force cannot be obtained.
In addition, when the gain of the hoist is set to be large, the vibration of the car is excited, and the ride quality of the car during normal operation may deteriorate.

Method used

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Embodiment approach 1

[0013] Fig. 1 is a configuration diagram showing an elevator control device according to Embodiment 1 of the present invention. In FIG. 1 , a car 2 and a counterweight 3 are provided in a hoistway 1 so as to be movable up and down. A hoist (drive device) 4 and a deflector pulley 5 for raising and lowering the car 2 and the counterweight 3 are provided on the upper portion of the hoistway 1 .

[0014] The hoist 4 has a hoist main body 6 including a motor, and a drive pulley 7 that is rotated by the hoist main body 6 . A plurality of main ropes (moving connectors) 8 are wound on the driving pulley 7 and the deflecting pulley 5 . The car 2 and the counterweight 3 are suspended in the hoistway 1 by respective main ropes 8 . One end of each main rope 8 is connected to the upper portion of the car 2 , and the other end of each main rope 8 is connected to the upper portion of the counterweight 3 .

[0015] The car 2 is provided with a car vibration measuring device 9 for measuring...

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Abstract

The elevator control device can prevent deterioration of the ride quality of the car during normal operation, and can more reliably suppress the lateral vibration of the movable connecting body. A control device (11) for an elevator includes a drive control unit (14), a control mode switching unit (12), and a calculation unit (13). When the driving control part (14) changes the rotating speed of the driving pulley (7) in a wave manner, it can limit the change frequency of the rotating speed of the driving pulley (7) in the normal mode within the prescribed low frequency band and can make the driving pulley (7) ) to switch between the vibration suppression mode at a frequency higher than the low frequency band. A control mode switching unit (12) detects lateral vibration of the main rope (8), and switches the control mode of the drive control unit (14) to a vibration suppression mode. A calculation unit (13) calculates a signal for canceling lateral vibration. The drive control unit (14) controls the rotation of the drive pulley (7) based on the information from the calculation unit (13) to suppress lateral vibration in the vibration suppression mode.

Description

technical field [0001] The present invention relates to an elevator control device for suppressing lateral vibration of a moving connecting body, such as a rope or a control cable, which moves with the movement of the car. Background technique [0002] When the tension of the main ropes suspending the car changes due to vibration of the car caused by passengers in the car or shaking of the building caused by earthquakes or strong winds, the main ropes vibrate in the vertical direction and also in the horizontal direction. In addition, due to the vertical vibration of the car, the governor rope and control cables that move together with the car may also vibrate in the horizontal direction. In this way, when vibration in the horizontal direction (transverse vibration) occurs in the moving connecting body such as the main rope, the moving connecting body interferes with lifting equipment such as guide rails or various switches, and the lifting equipment and the moving connectin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/00
Inventor 福井大树渡边诚治汤村敬西山秀树塩崎秀树
Owner MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP
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