Authors: D.I. Zakrasovsky, I.A. Tarasyuk, D.A. Safina, M.O. Ovsyannikov, V.G. Nedobezhkin

Title of the article: Comparative assessment of the loads on the front axle wheel mounting elements of an autonomous mining dump truck with a payload capacity of 240 tons and BelAZ-7531

Year: 2024, Issue: 4, Pages: 99-113

Branch of knowledge: 2.8.8 Mining machines, geotechnology (engineering)

Index UDK: 629.3.027.3

DOI: 10.26730/2618-7434-2024-4-99-113

Abstract: The article presents the results of comparing the loads on the front axle wheel mounting elements of the developed autonomous mining dump truck (ADT) with a load capacity of 240 tons and BelAZ-7531. During the research and development work, the search and analysis of existing technical solutions for the construction of mining dump trucks, including wheel mounting elements to the hub, is carried out. To confirm and compare the results of the studies of the loads of the wheel-to-hub mounting elements for the developed ADT with a load capacity of 240 tons, it was decided to carry out similar calculations of BelAZ-7531, as the closest analogue. Solid-state models have been developed to calculate the stud connections of the wheels of the ADT and BelAZ-7531. The determination of the loads on the wheel mounting elements was carried out in the APM Joint software. From the calculations, in order to meet the conditions of non–opening of the joint with 15 clamps, the ADT will require a tightening force of 145652 N, for BelAZ-7531 this value is 145610 N. At the same time, the safety margin coefficients were 2.14 and 2.65, respectively. According to the calculation results, the scheme for the ADT of 15 clamps almost corresponds to the BelAZ-7531 scheme, the difference is only in the safety factors and tightening torques due to differences in thread size. At the same time, it is possible to achieve similar values of the safety factor by choosing studs of an increased strength class. A smaller tightening torque is an advantage of the circuit for the ADT.

Key words: dump truck wheel fasteners hub stud clamp APM joint

Receiving date: 21.09.2024

Approval date: 11.11.2024

Publication date: 19.12.2024

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