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Method for replacing the ropes of an elevator, and an elevator

A rope and elevator technology, applied in the field of elevator rope replacement and elevator, can solve problems such as discomfort, separate hoist and other auxiliary devices, and achieve the effect of saving logistics, shortening replacement time, and reducing space

Inactive Publication Date: 2014-11-05
KONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage is the cost incurred by the new hoisting ropes, and the necessary replacement work for the premises used by the customer, as well as the discomfort for residents and other users of the lift
There is also the disadvantage that a separate hoist and other auxiliary devices are required during the replacement work

Method used

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  • Method for replacing the ropes of an elevator, and an elevator
  • Method for replacing the ropes of an elevator, and an elevator
  • Method for replacing the ropes of an elevator, and an elevator

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Embodiment Construction

[0019] For clarity, the trailing cables are not drawn as visible in these figures. The following equations apply between the unit masses expressed in kg / m for hoisting ropes, trailing cables and compensating ropes of elevators:

[0020] m S = M C +0.25×M TC

[0021] where M S = unit mass of hoisting rope

[0022] m C = Unit mass of compensation rope

[0023] m TC = unit mass of the trailing cable

[0024] In the case represented by the above equation, the compensation of the rope is exactly 100%. In practice, however, there is sufficient accuracy when the compensation is, for example, between 97-102%.

[0025] Correspondingly, with the aid of the unit mass of the hoisting ropes and the trailing cable, the limit value A of the unit mass of the hoisting ropes for different numbers n of ropes can be calculated. The following equations are valid for calculations:

[0026] ((n-1)×M S +0.25×M TC ) / n×M S =A=0.97–1.02

[0027] From the above it follows that:

[0028] ...

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Abstract

A method for replacing the elevator ropes in an elevator provided with at least a hoisting machine, a traction sheave and a counterweight, in which the elevator car is supported with elevator ropes and which elevator comprises compensating ropes. In connection with the first rope replacement the compensating ropes are converted into the hoisting ropes of the elevator and at least a part of the hoisting ropes are converted into the compensating ropes of the elevator.

Description

technical field [0001] The object of the invention is a method for changing the ropes of an elevator, and an elevator. Background technique [0002] The hoisting ropes of an elevator must run many times over the traction sheave, and possibly also over one or more diverting pulleys, during their service life. These bends, which occur in the vicinity of the traction sheave and diverting pulleys, wear the hoisting ropes considerably, among other stresses. For the hoisting ropes of an elevator there is thus a calculated certain service life, after which the hoisting ropes have to be replaced by new ropes, even if no damage is detected in them. This calculated service life is eg 7-8 years. On the other hand, the compensating ropes of the elevator are not subject to this harsh stress, so that they last well and they can last much longer than the hoisting ropes. [0003] The problem with the solutions of the prior art is that the hoisting ropes to be taken out of service are mos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B7/06
CPCB66B19/02Y10T29/49716Y10T29/4973B66B7/00B66B7/06
Inventor P.阿拉森蒂
Owner KONE CORP
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