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Elevating device

A technology of lifting device and lifting table, which is applied in the direction of lifting device, lifting frame, portable lifting device, etc., can solve the problems such as difficult to use direct-acting guides and functions, and achieve the effect of suppressing dust or vibration noise

Active Publication Date: 2015-04-01
IHI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a problem that the large reaction of the elastic deformation of the lifting table acts rapidly on the linear guide and the guide rail when it is reset.
Moreover, in a large-scale lifting device, it is impossible to completely eliminate errors such as parallelism and straightness of the two columns, so it is actually difficult to use linear guides

Method used

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Examples

Experimental program
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Embodiment Construction

[0030] Hereinafter, an embodiment of the present invention will be described based on the drawings. In this embodiment, the lifting device of the present invention is applied to a tower crane SC. The tower crane SC is used in, for example, a clean room, and travels on rails laid on the ground. In the following description, the moving direction along the track of the tower crane SC is defined as the X-axis direction, the horizontal direction perpendicular to the X-axis direction is defined as the Y-axis direction, and the vertical direction perpendicular to the X-Y plane is defined as It will be described as the Z-axis direction.

[0031] figure 1 is a perspective view of a tower crane SC, figure 2 , image 3 It is a sectional view of the tower crane SC. As shown in these figures, the tower crane SC includes a pair of prism-shaped columns 20A, 20B extending along the Z-axis direction. The upper ends of , 20B are connected by the upper frame 30 extending along the X direc...

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PUM

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Abstract

The invention provides an elevating device. The elevating device comprises a pair of upright columns having guide rails extending along the plumb direction, a lifting stand configured between the upright columns and applied for elevation; guide mechanisms equipped on the lifting stand and capable of being clamped on the corresponding guide rail of each upright column in a rolling way, and an elevation driving mechanism supplying elevation driving force to the lifting stand. The lifting stand comprises a pedestal module and a pair of side modules. The guide mechanisms are linearly-moving guide pieces which are connected on the side modules through a spherical bearing.

Description

technical field [0001] The present invention relates to a lifting device used for tower cranes and the like to lift and lower objects. This application claims priority to Japanese Patent Application No. 2010-149278 for which it applied on June 30, 2010, and uses the content here. Background technique [0002] As an elevating device used for a tower crane or the like, there is known an elevating device in which an elevating platform is arranged between a pair of spaced upright columns, and the elevating platform is suspended from the upright columns to be raised and lowered. In this lifting device, both ends of the lifting platform are supported by the columns on both sides via cables or chains, and the lifting platform is raised and lowered by pulling the cables or chains by a motor. Most of such lifting devices are provided with a plurality of guide rollers rolling on the sides of each column at both ends of the lifting platform, and the vibration of the lifting platform i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D3/18B66F7/00B66F7/28
Inventor 村山晋
Owner IHI CORP