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Damping device for elevator and elevator employing the same

A vibration damping device and elevator technology, which is applied in the field of elevators and can solve problems such as increasing the load mass, increasing the weight of the car, and increasing the number of ropes

Active Publication Date: 2010-03-24
HITACHI LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, installing an excessively large device on the elevator car will increase the weight of the car, and the number of ropes used to raise and lower the car will increase. Various measures such as the following are required: Strengthen the rigidity of the frame constituting the car or increase the strength and, in turn, increase the load mass of the counterweight relative to the movable hammer

Method used

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  • Damping device for elevator and elevator employing the same
  • Damping device for elevator and elevator employing the same
  • Damping device for elevator and elevator employing the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0025] figure 1 It is a perspective view showing the elevator E of the first embodiment of the present invention.

[0026] (Overall structure of elevator E)

[0027] Such as figure 1 As shown, the elevator E of the first embodiment is equipped with: a car 1, which conveys people entering the elevator from a door 1d, and the door 1d is opened and closed when a person enters or exits the elevator (refer to figure 1 Arrows α11, α12 of arrows α11 and α12); pulley 2, which is rotatably installed on the lower part of the car 1; hoisting rope 3, which is wound and hung on the pulley 2, and the pulley 2 is rotated by winding up or down, Thereby making the car 1 lift ( figure 1 arrow in the direction of β1).

[0028] Such as figure 1 As shown, the center of gravity G of the car 1 is located in the approximate center of the car 1 .

[0029] In the following description, the side of the car 1 of the elevator E having the door 1d is taken as the front, the depth direction is taken a...

no. 2 approach

[0062] Next, use image 3 An elevator 2E according to a second embodiment of the present invention will be described.

[0063] image 3 It is a front view which shows the elevator 2E of 2nd Embodiment.

[0064] image 3 The vibration damping device 2E1 of the elevator 2E according to the second embodiment shown has a set of hammers 22a, 22b arranged vertically above and below in order to damp the lateral vibration of the car 21 in the Y direction (horizontal direction).

[0065] The vibration damping device 2E1 has a vibration damping effect on the translational motion of the car 21 in the Y direction and a vibration damping effect on the rotational motion of the car 21 around the X axis.

[0066] The structure other than that is the same as that of the first embodiment, and therefore the same structural elements are assigned the symbols of the 20th paragraph, and detailed description thereof will be omitted.

[0067] Such as image 3 As shown, the rotating plate 21a and ...

no. 3 approach

[0082] Next, use Figure 5 The elevator 3E of 3rd Embodiment is demonstrated.

[0083] Figure 5 It is the top view which looked at the elevator 3E of 3rd Embodiment from above.

[0084] Figure 5 The car 31 shown consists of a Figure 5 The guide rails g31 and g32 extending in the direction of the front and back of the paper are guided along the Figure 5 The direction of the front and back of the paper is raised and lowered.

[0085] exist Figure 5 In the elevator 3E according to the third embodiment shown, in order to damp the vibration of the car 31 in the X direction (depth direction), the disks 31a and 31b of the vibration damping device 3E1 are directed upward below the car 31. And horizontally arrange the vibration damping device 3E1 parallel to the XY plane.

[0086] The hammer 32a fixed to the circular plate 31a and the hammer 32b fixed to the circular plate 31b of the vibration damping device 3E1 are the same as those of the first and second embodiments, and...

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Abstract

The present invention provides a damping device for an elevator, capable of improving riding comfortability by using a simple structure and low cost, and an elevator employing the damping device. Thedamping device for the elevator of the invention is damping device (E1) used to restrain the vibration of the elevator car (1) and comprises rotary actuators (10a, 10b); hammers (12a, 12b) rotating bythe actuators (10a, 10b) and arranged at excentral positions relative to their rotating axis; vibration detection mechanisms (16a, 16b) for detecting the vibration of the car (1); and a control mechanism (C) for controlling rotation of the actuators (10a, 10b) according to the vibration information of the car (1) detected by the vibration detection mechanisms (16a, 16b).

Description

technical field [0001] The present invention relates to an elevator, and more specifically, relates to an elevator vibration damping device for achieving good ride comfort of an elevator, and an elevator using the elevator vibration damping device. Background technique [0002] The lateral vibration in the horizontal direction of the elevator car used in the lifting of buildings, etc., is mainly due to the bends and steps in the joints of the guide rails that guide the elevator car to move up and down, and the car is excited to vibrate to generate the above-mentioned lateral vibration. [0003] In order to reduce this lateral vibration, the following methods are currently implemented: strictly manage the installation tolerance of the guide rail, reduce the bending and steps of the guide rail due to the joint of the guide rail, or use vibration damping in the guide device of the car or under the car device, thereby applying damping. [0004] Furthermore, in order to enhance ...

Claims

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Application Information

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IPC IPC(8): B66B11/02B66B9/00
Inventor 野口直昭荒川淳须田义大中野公彦林隆三
Owner HITACHI LTD
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