Excavator weighing method

Abstract

The invention discloses an excavator weighing method, which comprises the following steps of: regarding a bucket filled with materials as a whole, and assuming a gravity center OG3 for the whole in a space coordinate; at a specific moment when a working device is static, moment balance equations are simultaneously listed for two different points by using the known quantity and the acquisition quantity, and the influence of hypothetical gravity center OG3 on solving of the weight G of a bucket filled with materials is eliminated after simultaneous listing. The total weight difference value of the materials and the bucket before and after the materials are unloaded is calculated, and the accumulative error influence of the residual materials in the bucket on the accumulative unloading amount is eliminated.

Description

technical field [0001] The invention discloses an excavator weighing method, which relates to the technical field of excavators. Background technique [0002] Excavators are widely used for unloading, loading and other tasks. In order to settle the construction volume and cost of the end user, the customer has a great demand for timely weighing and statistics of excavation and loading materials. However, due to the limitation of material properties, material quantity, site, equipment and other factors, it is not easy to achieve material weighing. [0003] In the existing intelligent weighing solutions for excavators, the center of gravity and the stacking shape of the material in the bucket are set in advance or approximated and brought into the balance equation for calculation. The reality is that due to differences in loading site conditions, material properties, and operator fluctuations, each excavation, the shape of the material accumulation in the bucket, and the cent...

AI Technical Summary

Problems solved by technology

The reality is that due to differences in loading site conditions, material properties, and operator fluctuations, there may be large differences in the shape of the material accumulation in the bucket and the center of gravity for each excavation

The use of parameter presets puts forward very high requirements on the accuracy of engineer data presets and operator operations; the use of sensors to correct the parameters of material shape and center of gravity position, because there is no feedback, the accuracy after correction cannot be guaranteed

At the same time, in the process of continuous excavation and loading, due to factors such as material viscosity and operator's operating habits, there may be material residues in the bucket after the unloading operation is completed, resulting in a high single weighing value; The method and system for real-time and accurate weighing during excavation and loading are worthy of further research

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