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Method and device for obtaining elevator balance coefficient

A technology of balancing coefficients and acquisition methods, which is applied in the control field and can solve problems such as errors, high labor intensity, and many error factors

Active Publication Date: 2018-09-07
HITACHI BUILDING TECH GUANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This method has the following disadvantages: it takes a long time, and the light balance coefficient test of a passenger elevator takes 1 to 2 hours; the labor intensity is high, and the weight needs to be moved repeatedly during the test; there are many error factors, because when making the current load curve, There are many measured values ​​of current, and there will be errors in each measured value; there will also be errors when determining the coordinates of the measuring points on the chart; in addition, when drawing points and making curves, errors will also be caused due to the difference in line type and smoothness; curves The drawing of the diagram is complicated and time-consuming, and the original record needs to be completed at the inspection site, so that at most one can be inspected in one morning, which is inconsistent with the rapid increase in the number of elevators

Method used

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  • Method and device for obtaining elevator balance coefficient
  • Method and device for obtaining elevator balance coefficient
  • Method and device for obtaining elevator balance coefficient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 1 It is a schematic flowchart of a method for obtaining an elevator balance coefficient in Embodiment 1 of the present invention. The embodiment of the present invention is applicable to the situation of obtaining the elevator balance coefficient. The method can be executed by a device for obtaining an elevator balance coefficient provided by an embodiment of the present invention. The device can be implemented in software and / or hardware, and can generally be configured in an elevator system. The method specifically includes the following operations:

[0039] S110. When it is determined that the car enters a free-running state, collect the speed of the car, and calculate the acceleration of the car.

[0040] Car can be set to no-load state, also can have load, preferably car is the state of no-load.

[0041] The state of the car entering the free-running car can be judged according to the brake of the elevator. When it is detected that the brake is fully open...

Embodiment 2

[0046] figure 2 It is a schematic flowchart of a method for obtaining an elevator balance coefficient in Embodiment 2 of the present invention. On the basis of the above-mentioned embodiments, the embodiment of the present invention further optimizes the operation of collecting the speed of the car and calculating the acceleration of the car.

[0047] Correspondingly, the method of this embodiment includes:

[0048] S210. Determine that the car enters a free-running state.

[0049] Before the determination that the car enters the free-running state, the method further includes: setting the car to be at an intermediate floor. Setting the car on the middle floor can avoid the situation that the car cannot move down when it is at the bottom floor, or cannot move up when the car is at the top floor, and fully guarantees that the car can enter the free-rolling state when it moves up or down.

[0050] Preferably, before the determination that the car enters the free-running stat...

Embodiment 3

[0064] image 3 It is a schematic structural diagram of an elevator balance coefficient acquisition device in Embodiment 3 of the present invention. The device is used to implement the method for obtaining the elevator balance coefficient provided in any of the above embodiments. The unit includes:

[0065] The acceleration calculation module 310 is configured to collect the speed of the car and calculate the acceleration of the car when it is determined that the car enters a free-running state.

[0066] The elevator balance coefficient module 320 is used to obtain the elevator balance coefficient from the acceleration of the car.

[0067] Further, the device also includes: a setting module,

[0068] It is used to set the car to be empty before the determined car enters the free-running state.

[0069] Further, the acceleration calculation module 310 is specifically used for:

[0070] When it is detected that the brake is fully opened, it is determined that the car enters...

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Abstract

The embodiment of the invention discloses an obtaining method and device for the elevator balance coefficient. The obtaining method for the elevator balance coefficient includes the steps that when it is determined that a lift car enters the free car sliding state, the speed of the lift car is collected, the accelerated speed of the lift car is calculated, and the elevator balance coefficient is obtained through the accelerated speed of the lift car. According to the embodiment, the problems that according to an existing method for calculating the elevator balance coefficient, time wasted for electric current load curve drawing is long, and the labor intensity is large are solved, and the effect of conveniently and rapidly obtaining the elevator balance coefficient by using the speed of the lift car when the lift car enters the free car sliding state is achieved.

Description

technical field [0001] The embodiments of the present invention relate to control technology, and in particular to a method and device for obtaining an elevator balance coefficient. Background technique [0002] The balance factor is an important performance index of the traction drive elevator. Its essence is the mass of the designed counterweight. The ideal operating state is that the mass of the counterweight is just equal to the weight of the car plus the mass of the load inside the car. However, the fixed counterweight cannot balance the change of the load from no-load to full-load, so only an appropriate balance coefficient can be selected. The state of the elevator running for many times is generally the closest to the ideal balance state. [0003] The test methods stipulated in the supervision and inspection regulations for test elevators are as follows: for AC motors, the current load curve or speed load curve is made through current measurement combined with speed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
CPCB66B5/0037
Inventor 刘真黄立明秦鹏荣洪凯李基源仲兆峰薄明心
Owner HITACHI BUILDING TECH GUANGZHOU CO LTD