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Elevator with damping device

A vibration damping device and elevator technology, applied in the field of elevators, can solve problems such as the inability to realize practical elevators, and achieve the effects of miniaturization, strong vibration damping ability, and stable control action

Inactive Publication Date: 2011-03-30
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is impossible to realize a highly practical elevator by merely installing an active vibration damping device like the above-mentioned Patent Document 1.

Method used

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Examples

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Embodiment Construction

[0045] In the elevator, when the forced displacement caused by the torque fluctuation of the motor of the hoist and the eccentricity of the sheave and pulley is transmitted to the rope, vibration in the vertical direction is generated. In order to reduce the above-mentioned vibration, measures such as reducing the fluctuation and reducing the eccentricity of the rotating body have been taken.

[0046] On the other hand, the lateral vibration is mainly caused by the forced displacement caused by the bending of the guide rail and the height difference acting on the elevator car. In order to reduce the above-mentioned lateral vibration, measures such as strengthening construction management to reduce the installation error of the guide rail and installing anti-vibration rubber and buffers under the guide device and the elevator car to reduce vibration and other measures have been taken.

[0047] In this embodiment, two disks with hammers are used, and rotary actuators are provide...

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Abstract

The present invention provides an elevator with a damping device, wherein the damping device not only has a strong damping capacity, but also can implement miniaturization, in particular reduce dimension in a height direction, and be controlled stably. In the elevator with the damping device, an elevator car (1) can move up and down along a guide way arranged in a lifting passage to detect vibration of the elevator car (1), an actuator (27) is controlled to drive based on a detected signal, wherein the elevator comprises a pair of circular disks (21a, 21b) supported by a rotating shaft (41) and hammers (22a, 22b) arranged at a position depart from the rotating shaft (41) on each circular disk, and the circular disks (21a, 21b) are drive to rotate by the actuator (27).

Description

technical field [0001] The invention relates to an elevator provided with an active vibration reduction device, and the invention is especially suitable for a small elevator with higher practicability as an elevator. Background technique [0002] In an elevator, an elevator car is suspended by a sling, and a motor winds up the sling to move the elevator car up and down. The elevator is guided to travel by a guide device provided with guide shoes or rollers, so that the elevator car travels along the guide rails arranged on the left and right sides. In addition, when the elevator is running, the elevator car will vibrate. This vibration can be roughly classified into vertical vibration and lateral vibration. [0003] In order to improve the driving stability of the elevator car while improving the ride comfort of the elevator car, and to alleviate the lateral vibration generated in the elevator car, a solution is disclosed in Patent Document 1, which detects the vibration o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B11/02
Inventor 野口直昭荒川淳宫田弘市小笠原刚
Owner HITACHI LTD
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