Article

Received 20.02.2022

Revised 17.07.2022

Accepted 22.08.2022

Retrieved from Vol. 26, No. 3, 2022

Pages 255 -267

Musiiko, V., Koval, A., & Patsora, D. (2022). Determination of the rational parameters for the construction of the tray discharge assembly of the bucketless rotary implements of the trenching excavators. The National Transport University Bulletin, 26(3), 255-267. https://doi.org/10.33744/2308-6645-2022-3-53-255-267

Determination of the rational parameters for the construction of the tray discharge assembly of the bucketless rotary implements of the trenching excavators

V. Musiiko A. Koval D. Patsora

The article considers the question of selection and justification of the construction parameters of the tray discharge assembly of the bucketless rotary implements of the trenching excavators based on the analysis of the rational trajectories of the soil that is being transported by the rotor from excavation to the place of its depletion at the excavation edge. The Goal of the study: determine the rational trajectory of the soil movement from the bucketless rotary implement of the trenching excavator and the parameters of the construction elements of the tray discharge assembly. Study object: bucketless rotary implement Study method: – computational analysis As the result of the completed analytical studies, we’ve obtained the mathematical model for the determination of the rational trajectories of the excavated soil movement from the implement to the trench parapet. We have determined the type of these trajectories that describe the required shape of the guiding surface (bottom) of the trays of the discharge assembly of the bucketless rotor. The mathematical model has been developed to determine the resistive forces of the excavated soil movement along the surface of the discharge tray. The mathematical model allows to calculate the optimal shape and constructive parameters of the tray guiding surfaces and soil removers. Using the developed mathematical models we have performed the calculations of the constructive parameters for the discharge assemblies of the trenching excavators ETP-137 and TMK-3.

 

bucketless rotor; soil; soil remover; excavator; tray; guiding surface; discharge
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https://doi.org/10.33744/2308-6645-2022-3-53-255-267