«Proceedings of Gubkin University»

Promising excavator equipment for the construction of oil and gas facilities

UDC: 621.879.064
DOI: 10.33285/2073-9028-2023-4(313)-118-127

Authors:

¹ The Siberian State Automobile and Highway University, Omsk, Russian Federation

Keywords: design, bucket, excavator, modeling, digging, APM FEM, calculation, strength, oil and gas facilities

Annotation:

To date, single-bucket hydraulic excavators – are one of the most widely used machines in the construction of oil and gas facilities. The article considers the design of the cylindrical bucket of the excavator, which allows reducing the number of units and devices in the excavator design without reducing the productivity of the machine. This reduces the cost of the car. The task of the work is to design a workable cylindrical bucket structure that can withstand maximum digging resistance in real conditions. A sketch of a 0,25 m3, cylindrical bucket designed for installation on an excavator based on a YuMZ-6AKL tractor is considered. The design of the bucket and the process of digging with a cylindrical bucket are described. Static calculation of the cylindrical bucket drawn from the sketch is carried out in the work. Construction and calculation are performed in the “Compass 3D” application APM FEM. The force on the bucket is chosen based on the weight of the excavator, since the case of stopping the bucket due to an insurmountable obstacle and partial lifting of the excavator is considered. The calculation shows high values of stress on the structure, which requires its revision. The work describes structural changes of a cylindrical bucket with a volume of 0,25 m3 in order to reduce stress values on its structure. According to the design changes made, a sketch of an improved design of a cylindrical bucket is built. Based on the sketch, the model is built and designed for strength. The calculation shows the operability of the designed structure. The values of stresses on the ladle are 3 times less than the yield strength of the ladle material, which allows to speak with sufficient confidence about its operability.

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