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Elevator with vibration damping device

A vibration damping device and elevator technology, applied in the field of elevators, can solve problems such as difficulty in securing technicians and maintaining the installation accuracy of car guide rails, and achieve the effect of low cost and energy consumption

Active Publication Date: 2019-08-16
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is difficult to ensure that there are skilled technicians on site, especially in overseas countries, it is difficult to maintain the installation accuracy of car guide rails

Method used

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  • Elevator with vibration damping device
  • Elevator with vibration damping device
  • Elevator with vibration damping device

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Embodiment Construction

[0019] Embodiments of the present invention will be described in detail below with reference to the drawings, but the present invention is not limited to the following embodiments, and various modifications and application examples of the technical concept of the present invention are also included in the scope.

[0020] figure 1 It is an example of an elevator with the damping device of this embodiment. figure 1 Among them, a vibration damping device is installed on the lower part of the car 1. The damping device has a connecting rod 3 with one end installed on the car 1 and the other end with a counterweight 2. One end of the connecting rod 4 is rotatably connected between the counterweight 2 installed on the connecting rod 3 and the car. Installed between the points, the other end of the connecting rod 4 is rotatably installed on one end of the connecting rod 5. The other end of the connecting rod 5 is attached to the rotating shaft of the motor 6 . When the motor 6 driv...

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PUM

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Abstract

The invention provides an elevator with a vibration damping device. The vibration damping device comprises an accelerometer for detecting the vibration acceleration of the elevator car; a controller which determines the control amount of the motor based on the vibration acceleration when the vibration acceleration exceeds a predetermined threshold value, the rotation direction of the motor is determined based on the direction of the acceleration of the elevator car when the vibration acceleration exceeds the threshold value; and a motor driven by a control command including a control amount and a rotation direction of the motor output from the controller.

Description

technical field [0001] The present invention relates to an elevator in which a vibration damping device is provided in a car in order to suppress lateral vibration of the car. Background technique [0002] In order to make the car go up and down stably along the guide rail, the elevator is provided with a guide device that makes the rollers contact the guide rail from three directions. The pressing force of the roller to the guide rail is adjusted by setting a spring on the rod on which the roller is installed. If the guide rail is bent and installed or there is a step difference in the joint of the guide rail, the external force will be transmitted to the car through the rollers in contact with the guide rail, resulting in lateral vibration. [0003] As one of the methods of suppressing such lateral vibration of the car, it is strictly managed so that the bending or step difference of the guide rail as a disturbance source is within the installation reference. In addition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B11/02
CPCB66B11/028
Inventor 荒川淳三好宽宫田弘市
Owner HITACHI LTD