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traction sheave elevator

A traction trough and elevator technology, which is applied to elevators, belts/chains/gears, portable lifting devices, etc. in buildings, can solve the problems of rope wear and shorten the service life of ropes, and achieve increased frictional traction, extended service life, Effect of reducing manufacturing cost

Inactive Publication Date: 2015-08-05
KONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is good frictional traction, but one problem with these solutions is that the bending of the rope stresses the rope which wears the rope and thus shortens the life of the rope

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] figure 1 A schematic simplified view of a typical traction sheave elevator is shown, the traction sheave elevator includes an elevator car 1, a counterweight 2 and an elevator roping formed by elevator ropes 3 parallel to each other installed between them . The elevator rope 3 is guided in a rope groove of a size suitable for the elevator rope 3 around the traction sheave 4 that is rotated by the hoist of the elevator. When the traction sheave 4 rotates, the traction sheave 4 simultaneously causes the elevator car 1 and the counterweight 2 to move in the upward and downward directions due to friction.

[0032] Due to the difference between the counterweight 2 and the elevator car 1 plus the load in the elevator car at any given time, the rope force T applied to the elevator rope 3 CTW And T CAR There are different magnitudes on different sides of the traction sheave 4. When the elevator car 1 contains a load less than one-half of the rated load, the counterweight is gen...

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Abstract

The object of the invention is a method for modernizing an elevator, and a traction sheave elevator, which elevator comprises at least an elevator car and a traction sheave that moves the elevator car by means of elevator ropes, the rim of which traction sheave comprises one or more rope grooves. In connection with modernization a traction sheave is installed as the traction sheave of the elevator, the rope grooves of which traction sheave comprise a material, the frictive traction achieved by which is greater than the frictive traction between the parent material of the metallic traction sheave and the elevator ropes.

Description

Technical field [0001] The object of the present invention is a traction sheave elevator. Background technique [0002] The modernization of elevators in the prior art usually focuses on elevators that no longer meet the requirements of the times technically and / or otherwise. Modernization can focus on some sub-functions or subsystems, or to the greatest extent it can mean complete or substantially complete updates of the elevator. The areas that may be modernized include, in particular: the elevator control system; the lifting function of the elevator through machinery and roping; the elevator door; and the elevator car. On the other hand, the elevator maintenance program maintains the existing system and functionality of the elevator. Thus, it is normal that when the hoisting ropes have worn out, they are replaced with new hoisting ropes and, and, usually in this case, replaced with similar hoisting ropes. At the same time, the traction sheave can be updated or overhauled. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B11/08B66B11/04B66B11/00B66B7/06
CPCB66B15/04F16H55/38B66D1/30B66B11/008B66D3/04Y10T29/49718B66D2700/026B66B19/007B66B11/08
Inventor E.奥兰科M.拉萨南S.科文兰塔R.佩尔托-胡伊科
Owner KONE CORP
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