Authors: A.I. Bokarev, V.A. Dianov, A.B. Kartashov, G.A. Arutyunyan, D.M. Dubinkin, D.A. Pashkov

Title of the article: Statistics of failures of high-loaded mining dump truck units with a load capacity of 220 tons

Year: 2024, Issue: 4, Pages: 23-31

Branch of knowledge: 2.5.6. Engineering technology

Index UDK: 629.017:629.018+629.3.027.3

DOI: 10.26730/1999-4125-2024-4-23-31

Abstract: In the process of designing mining dump trucks, it is very important to ensure the necessary operational reliability properties in specified resource units, primarily for the components of the power structure of the bearing system and the chassis suspension guide. Since the authors of the article are engaged in the development of newly designed mining equipment, in this context, the process of studying the operation of mining dump trucks of analogues is an obligatory classic of any model of the process of evolution of a new product. The operation process of mining dump trucks is closely related to the issue of finding the relationship of their cyclic failures. In this paper, the authors describe the failure statistics of high-loaded BelAZ 7530 dump truck units at Kuzbass coal mines, where newly developed quarry equipment is planned to be operated. Failure statistics indicating the estimated mileage to failure under operating conditions at Kuzbass coal mines were compiled based on the results of a technical inspection of dump trucks and feedback from service station workers for selected research facilities of "carbon carriers" (BelAZ 7530 configuration) and "rock carriers" (BelAZ 7530 configuration). The authors noted that the weakest points of the BelAZ 7530 model, taking into account the mileage before the first failure, are the frame (the first failure in the worst case after 200,000 km); the hub (the first failure in the worst case after 200,000 km); bridge (first failure in the worst case after 225,000 km). Due to the longer distance of transporting rock mass in kilometers from the place of loading to unloading by a "carbon carrier", unlike a "rock carrier", the walking capacity of a carbon carrier to failure is much higher.

Key words: dump truck failure statistics incision daily operation carbon rock truck

Receiving date: 26.06.2024

Approval date: 25.07.2024

Publication date: 26.09.2024

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