Door control device and elevator device

A door control and door panel technology, used in elevators, transportation and packaging in buildings, etc., can solve problems such as the drop of current flowing through the motor, and achieve the effect of suppressing vibration and smooth opening and closing.

Active Publication Date: 2017-03-01
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when slippage occurs between the pulley and the belt, the motor rotates to generate counter electromotive force, and the current flowing through the motor decreases

Method used

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  • Door control device and elevator device
  • Door control device and elevator device
  • Door control device and elevator device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0028] First, the structure of the door apparatus in Embodiment 1 of this invention is demonstrated. figure 1 It is an overall schematic diagram showing the structure of the door apparatus according to Embodiment 1 of the present invention. figure 1 Shown is a door arrangement that is used, for example, as a door of an elevator installation.

[0029] exist figure 1 Among them, the door device 1 has: door panels 1A, 1B, which open and close the entrance and exit of the elevator car; hangers 2, which are installed on the upper ends of the door panels 1A, 1B; At the upper edge of the entrance and exit; and the guide rail 4 is arranged on the beam 3 so that the long side is along the horizontal direction. The hanger 2 is provided with a plurality of hanging wheels 5, and the hanging wheels 5 are placed on the guide rail 4, and the hanging wheels 5 move along the guide rail 4, thereby guiding the horizontal movement of the hanger 2, that is, guiding the opening of the door panels...

Embodiment approach 2

[0098] Figure 6 It is a control block diagram showing the door control device according to Embodiment 2 of the present invention. exist Figure 6 , marked with figure 2 Parts with the same reference numerals represent the same or corresponding structures, and description thereof will be omitted. Figure 6Similar to the door control device of Embodiment 1, the door control device is configured such that the belt stiffness is estimated during the pushing operation, the frequency of the natural vibration of the door is calculated, and the frequency of the natural vibration is removed from the detected value of the moving speed of the door panel by filter processing. composition, thereby achieving smooth door opening and closing. The difference from Embodiment 1 of the present invention is that the belt stiffness is estimated with higher accuracy using the initial tension value of the belt. Hereinafter, differences from Embodiment 1 will be described, and descriptions of the...

Embodiment approach 3

[0117] Figure 7 It is a control block diagram showing the door control device according to Embodiment 3 of the present invention. exist Figure 7 , marked with figure 2 Parts with the same reference numerals represent the same or corresponding structures, and description thereof will be omitted. Figure 7 The door control device has a different structure from the door control device of Embodiment 1. When the opening and closing operation starts, the belt stiffness is estimated to calculate the frequency of the natural vibration of the door characteristics, and the natural vibration frequency is removed from the detected value of the motor rotation speed by filtering. The frequency component of the vibration enables smooth door opening and closing.

[0118] Such as Figure 7 As shown, the door control device 12 according to Embodiment 3 of the present invention is configured to have a current command limiting unit 26 for inputting an operation command from the opening and...

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PUM

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Abstract

Disclosed is a door control device and an elevator device. A door is allowed to be opened and closed smoothly by appropriate filtering of detection results of door opening and closing speed. The door control device includes an opening and closing operation selecting unit for selectively outputing an operation command for a door plate connected to a motor driven belt; a speed control unit that outputs a current value supplied to a motor to control the moving speed of the door plate; a current instruction portion for pressing, which changes the current value so that the torque generated by the motor changes; a speed calculating unit that calculates a rotational speed of the motor based on the rotational position of the motor; and a belt stiffness estimating unit that estimates belt stiffness using the change amount of the current value outputted by the current instruction unit for pressing and the change amount of the rotational position of the motor; a blocking frequency determination unit configured to determine a blocking frequency based on the estimated belt stiffness of the belt stiffness estimating unit; and a filter processing unit that outputs a signal after of the frequency component of the blocking frequency is removed from the signal of the rotational speed and feeding the signal back to the speed control unit.

Description

technical field [0001] The present invention relates to a door control device such as a door and an automatic door of an elevator device, and an elevator device provided with the door control device. Background technique [0002] The doors of the elevator device and the automatic door of the building are opened and closed by moving in the horizontal direction. The door device has: a door panel; two pulleys, which are arranged on the upper part of the door panel; on the pulley; and a motor that drives one pulley to rotate. When the motor drives the pulley to rotate, the torque of the motor is converted into a driving force in the horizontal direction through the belt, thereby opening and closing the door panel attached to the belt. [0003] In a conventional door device, when the motor is driven and controlled to close the open door, after the door moves to the closed end and is blocked, gradually increasing voltage is applied to the motor to detect the door drive. force dr...

Claims

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Application Information

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IPC IPC(8): B66B13/14B66B13/08
CPCB66B13/08B66B13/143
Inventor 菅原正行岸元邦充
Owner MITSUBISHI ELECTRIC CORP
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