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Method for determining the balancing weight difference in an elevator

A technology for balancing weight and elevators, which is applied in the field of determining elevator balance weight difference in elevators, and can solve problems such as substantial workload and cost and labor

Active Publication Date: 2015-10-28
KONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weighing elevator components (ie, weighing the elevator car and counterweight) is a laborious task requiring substantial effort and cost

Method used

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  • Method for determining the balancing weight difference in an elevator
  • Method for determining the balancing weight difference in an elevator
  • Method for determining the balancing weight difference in an elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 A diagram is shown in which velocity is shown in the horizontal direction and power is shown in the vertical direction. The diagram shows parts of the power model according to the invention with different power parameters during the travel of an elevator car in test operation.

[0021] The balance check of the present invention is based on the power model (1). According to the invention, the power model is considered only in the test area where the elevator runs at a constant speed. exist figure 2 , these regions are illustrated by ellipses 10 . During the test run, measure the power P fed to the motor M .

[0022] Kinetic energy P K equal to m I · v · a, where m I is the mass of the moving parts of the elevator system. Since only the constant velocity region 10 of the test run is considered, the acceleration is zero and the kinetic power is correspondingly reduced to zero.

[0023] capable of depending on the motor current I M and the motor winding...

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PUM

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Abstract

The invention relates to a method for performing a balance check with an elevator, in which method - a power model of the elevator is established, comprising the motor power fed to the motor (P M ) and power parameters of the motor and the moved components in the hoistway (P K , P P , P Fr , P Cu , P Fe ), - a test run of the elevator is made, - mid motor power values for the up and down direction are determined, i.e. the power fed to the motor at the instant when the car is moving through the middle of the travelling path of the elevator in up and down direction with constant velocity, - the difference between the mid power value in up and down direction is determined, the balancing weight difference is obtained from said mid power value difference. This method allows an easy determination of the elevator balance preferably in course of modernizations of an elevator system with a new elevator motor.

Description

technical field [0001] The invention relates to a method for performing a balance check with an elevator, ie a method of determining a balance weight difference in an elevator. Background technique [0002] During the modernization of existing elevators and elevator groups, new elevator motors and motor drives are often installed in existing elevators. For optimization of new elevator motors and motor drives of existing elevator systems, a balance check is preferably performed, ie the weight difference of the empty elevator car and the counterweight (= balance weight difference) is determined in the elevator system. [0003] Typically, the weight of the counterweight corresponds to the weight of an empty elevator car plus half the rated load of the elevator. Usually during the life of the elevator several modifications are made at the elevator car, also at the counterweight the actual value often deviates substantially from the theoretical value assumed above. Sometimes th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/00
CPCB66B5/0087B66B5/00B66B1/3476B66B5/0025
Inventor T·蒂尼R·拉姆皮南P·佩拉拉R·乔基南
Owner KONE CORP