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A method for calibrating a vehicle weighing system

A technology of weighing system and calibration method, which is applied in the field of iron and steel manufacturing, can solve problems such as limited management means and influence on production rhythm, and achieve the effect of ensuring accuracy, simple and easy calibration method, and fast speed

Active Publication Date: 2021-08-13
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the management means are limited. The only way to compare the accuracy of the weighing of the cranes is to let the two cranes on the same straddle hoist the same iron ladle and observe the consistency of the data, which affects the production rhythm and the situation is passive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] The calibration method of the driving weighing system in this embodiment includes the following steps according to the driving characteristics of the existing foundry workshop:

[0015] (1) When the driving hook is empty, raise the driving hook to the upper limit position, and after it stabilizes, read the initial weight value, and use the initial weight value as the zero point of the weight value; that is, the conventional "return to 0" operation; Remove the influence of current self-weight, etc.;

[0016] (2) When the crane is carrying out the lifting operation, raise the hook of the crane to the upper limit position, and after it stabilizes, read the first weight value. In this embodiment, the first weight value is 400 tons Then lower the suspension hook of the described driving to the first position, after being stabilized, read the second weight value, in the present embodiment, the second weight value is 402 tons; obtain the difference between the upper limit posi...

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Abstract

The invention relates to a method for calibrating a driving weighing system, comprising: returning to zero, weighing at an initial position, weighing at a verification position, and weight compensation. The method for calibrating the weighing system of the traveling crane provided by the present invention utilizes the characteristic that the weight change of the steel wire rope used in the hook of the traveling crane has a linear relationship with the height to realize the automatic calibration of the weighing system of the traveling crane. The calibration method is simple and fast, It has high efficiency and does not affect production. It can detect the abnormality of the weighing system in time, and adjust it by human intervention in time to ensure the accuracy of the weighing system.

Description

technical field [0001] The invention relates to a method for calibrating a vehicle weighing system, which belongs to the technical field of iron and steel manufacturing. Background technique [0002] There are multiple cranes installed in the workshop of the foundry and steelmaking plant, and these cranes are equipped with load cells on the fixed pulley block of the main coil to complete the weighing of the weight of the main coil, which is used to calculate the amount of iron added in a single furnace and the amount of steel tapped in a single furnace ( The weight of the full ladle before ironing minus the weight of the empty ladle after ironing is the amount of iron added in a single furnace; the amount of full ladle after tapping minus the weight of the empty ladle before tapping is the amount of steel in a single furnace) Model steelmaking provides important parameter basis. [0003] The accuracy of the weighing system is very important for model steelmaking, and the ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G23/01
CPCG01G23/01
Inventor 巩长军郭海滨陈开义饶刚
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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