Forklift weighing device and automatic weighing method for forklift

Abstract

The invention discloses a forklift weighing device. The forklift weighing device comprises a double-fork hanging plate, a forklift portal hanging plate and two weighing sensors. The two weighing sensors are rigidly fixed through a fixing rod and then fastened between the double-fork hanging plate and the forklift portal hanging plate, and one sensor is located over the other sensor. The invention further discloses an automatic forklift weighing method based on the weighing device. The method includes the following steps that firstly, corresponding sensing signals of goods weight are acquired through the weighing device; secondly, the sensing signals are sampled and processed; thirdly, the processed sensing signals are converted into weight values; finally, correction and compensation are conducted on the weight values through fuzzy correction. Weighing errors are automatically corrected through fuzzy correction, the intelligent degree is high, control accuracy is high, the errors are small, compared with foreign similar devices, the cost of a system is low, and high promotional value is achieved.

Description

technical field [0001] The invention relates to the field of forklifts, in particular to a weighing device for a forklift and a method for automatically weighing a forklift. Background technique [0002] Forklift automatic weighing device is an important part of modern logistics. With the rapid development of logistics, higher requirements are put forward for the efficiency of logistics equipment. The basis for improving the efficiency of logistics equipment is that logistics equipment has the functions of information collection and transmission of goods. The development and application of the new forklift automatic weighing device can enable logistics equipment such as forklifts to have more extensive functions. First, it can cooperate with users to carry out more efficient information management of goods, such as accurate weight of goods in warehouses, loss of goods in the production process, information The second is to reduce equipment investment (such as weighbridge equ...

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Problems solved by technology

[0003] For many years, there are two main types of domestic forklift weighing devices: one is to determine the weight of the loaded object by measuring the change of oil pressure in the oil cylinder when the forklift is lifted, such as Chinese patent: CN203411294U, the main disadvantage of this weighing method It is because the seal of the oil cylinder cannot guarantee absolutely no leakage. If the forklift has a little oil leakage during use, it will cause a large error, and the versatility of this measurement method is limited; the other is the new hanging plate and the original hanging plate. Connect with four shear force sensors, the fork is hung on the newly added hanging plate, and the weight of the goods on the fork is determined according to the sum of the shear forces on the four sensors. The main problem of this method is that it is difficult to control the goods on the fork The effect of the load center of gravity position on the output signal

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