Article

Received 30.08.2021

Revised 06.01.2022

Accepted 15.02.2022

Retrieved from Vol. 26, No. 1, 2022

Pages 297 -306

Musiiko, V., Koval, A., Moroz, V., & Varfolomeev, Yu. (2022). Determination of the power load for the skid of the multipurpose earthmoving machine’s rotary implement. The National Transport University Bulletin, 26(1), 297-306. https://doi.org/10.33744/2308-6645-2022-1-51-297-306

Determination of the power load for the skid of the multipurpose earthmoving machine’s rotary implement

V. Musiiko A. Koval V. Moroz Yu. Varfolomeev

This article is concerned with the physical substance of the interaction between the skid of the multipurpose earthmoving machines implement and the surface of the soil excavation and experimental determination of the power load parameters of the skid as a factor that ensures the cource stability of the machine during the excavation process. Study object: process of the power loading of the skid in the rotary implement of the multipurpose earthmoving machine. Objective: determination of the physical substance and values of the power load parameters for the skid in the rotary implement of the multipurpose earthmoving machine. Method – the experiment on the physical model of the implement. The experimental determination of the value and beavior of the power load on the skid of the machine’s implement during excavation in the mode of reciprocating approach in the absence of proven calculation methods should be concider the only way to evaluate the load on perticular assembly as well as on the machine as a whole. This is necessary for power balance evaluation for the machine that works in the soil excavation mode and for the determination of the course stability of the machine. During the study we have concluded that the values of the skid power load components (longitudal, transverse, vertical) are mainly determined by forming and movement of the soil traction prism that spills to the bottom of the excavation during digging. To the outmost this effect manifests near the walls of the excavation that causes the plated shape of the skid bearing surface which ensures it’s ‘emersion’ above the prism of the spilled soil. We have determined the dependancy of the skid load forces from kinematic characteristics of the implements translation modes during excavation. The consistent pattern that we have detected allows to minimize the power load of the skid by tweaking the duration of the implements additional turn at the end of each half-cycle which leads to the increase of the course stability during creation of the of the wide excavations.

 

soil; additional turn; digging; course stability; skid; working modes; implement; power parameter
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https://doi.org/10.33744/2308-6645-2022-1-51-297-306