Method for weighing large-sized structural member

Abstract

The invention discloses a method for weighing a large-sized structural member. The method comprises the following steps: determining structural strength positions suitable for supporting on the large-sized structural member; designing a rising platform frame according to the heights of the determined positions; placing a pressure sensor and a hydraulic jack at each position; rising synchronously; recording the pressure reading of each pressure sensor; calculating the carried weight at each position according to formulae F=PS and M=F / g; accumulating to obtain the weight of the structural member. The method has the advantages of high safety and high accuracy, and the practical weight of large-sized structural member can be measured accurately.

Description

technical field [0001] The invention relates to the field of force weighing methods, in particular to a weighing method for large structural parts. Background technique [0002] To hoist a component, we first need to know the weight and center of gravity of the component. Generally, we estimate based on the theoretical weight of the drawings. For large-scale components, due to their large volume and heavy weight, the calculation error is relatively large through theoretical estimation, and it is unrealistic to check their weight through the weighbridge, or rely on large-scale equipment (such as floating cranes), but this The cost of the method is very high, and in the case of uncertain weight and center of gravity position, there is also a certain risk of hoisting itself. [0003] How to get the weight of a large component and its center of gravity position as accurately as possible while minimizing the cost is the problem to be solved by this technology. [0004] Accordi...

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Problems solved by technology

[0006] 2. Use the weighbridge to weigh, but the position of its center of gravity cannot be obtained, and it is limited by the weight;

[0009] 1. The weight obtained by the first method has a certain error, because the welding consumables increase a certain weight, and at the same time, there is still a certain deviation between the actual production and the theory;

[0010] 2. The second method can check the weight of the component, but it cannot check whether its center of gravity is correct, and it is also limited by the maximum weighing;

[0011] 3. The cost of large-scale cranes is relatively high. At the same time, when the weight and the position of the center of gravity are not accurate enough, using a crane to lift and measure weight also has certain lifting risks.

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