scholarly journals Actual Technical Condition Assessment of A Motor-Wheel Gear of A Dump Truck Belaz Based on the Operating Oil Parameters

2019 ◽  
Vol 105 ◽  
pp. 03021 ◽  
Author(s):  
Andrei Kudrevatykh ◽  
Andrei Ashcheulov ◽  
Alena Ashcheulova ◽  
Olesia Karnadud ◽  
Ludger Rattmann
Keyword(s):  
Chemical Analysis ◽  
Temperature Control ◽  
Technical Condition ◽  
Open Pit ◽  
Dump Truck ◽  
Repair Costs ◽  
Dump Trucks ◽  
Wear Products ◽  
Physical And Chemical ◽  
Mine Dump

One of the most important indicators of mining complexes are reliability and durability of their components. Studies have shown that the largest amount of mine dump truck down time occurs due to unforeseen failures of a motor-wheel gear. The introduction of additional technological processes to diagnose the actual technical condition of a gear in the maintenance procedure will make it possible to maintain directly the state of its component parts with in-place manner. The method of diagnosing the condition of a motor-wheel gear is based on physical and chemical analysis of oil, as well as its temperature control. During open pit machinery exploitation, various mechanical impurities of wear products of rubbing surfaces accumulate in the operating oil, so it is possible to predict the degree of wear of gear units and mechanisms based on these mechanical impurities. The introduction of this method in production will significantly reduce the down time of dump trucks, thereby increase the productivity of the enterprise and reduce repair costs.

scholarly journals Comparative Analysis of Gearboxes Wear in Excavators and Mining Trucks

2020 ◽  
Vol 174 ◽  
pp. 03017
Author(s):  
Andrey Kudrevatykh ◽  
Andrey Ashcheulov ◽  
Alena Ashcheulova ◽  
Kumis Urazbaeva
Keyword(s):  
Comparative Analysis ◽  
Mining Industry ◽  
Technical Condition ◽  
Used Oil ◽  
Dump Trucks ◽  
Wear Products ◽  
High Level ◽  
Physical And Chemical ◽  
Metallic Impurities

The primary task of all enterprises in mining industry is to increase the durability and reliability of the mining complex. These very indicators provide nonstop minerals mining, and as a result, productivity increases. Indicators maintaining at high level can be achieved by different ways, but the most effective method is repair-in-place diagnosis of the actual technical condition of the main units and assemblies of equipment, as it is less costly and the most informative. To identify gear malfunctions, the physical and chemical analysis of the used oil is used to determine metallic impurities. A comparative analysis of wear products accumulation in rotary gears of mining excavators and gearboxes of the motor-wheel of dump trucks revealed the similarity of mathematical models for the determination of metallic impurities in used oil. The “universal” mathematical model is given in the paper; it allows to determine the actual technical condition of gearboxes for various equipment with a few assumptions. Moreover, the model takes into account various indicators of the environment, used oil, as well as the operating parameters of the equipment.

scholarly journals Increasing life of pit dump truck motor-wheel gearboxes by introducing the monitoring of the actual technical condition

2021 ◽  
Vol 6 (4) ◽  
pp. 267-276
Author(s):  
A. A. Khoreshok ◽  
A. V. Kudrevatykh ◽  
A. S. Ashcheulov ◽  
A. V. Vinidiktov ◽  
L. I. Kantovich
Keyword(s):  
Technical Condition ◽  
Dump Truck ◽  
Mining Equipment ◽  
Quality Performance ◽  
Equipment Operation ◽  
Maintenance Service ◽  
Dump Trucks ◽  
Combination Of Methods ◽  
The Cost ◽  
Physical And Chemical

At present, Kuzbass coal strip mines pay great attention to improving quality performance of mining equipment operation, including reliability and durability of components and units. One of the ways of the performance improvement is decreasing number of unforeseen failures. To achieve this purpose a mine dump truck part diagnostics should be introduced into a maintenance service procedure. At the same time the process of diagnostics should not increase the machinery downtime, but effectively reveal a condition of motor-wheel gearboxes in the course of dump truck operation. The aim of the research is to increase the reliability and service life of motor-wheel gearboxes of large BelAZ dump trucks. Failure of a motor-wheel gearbox is a rare phenomenon, but the cost of a new gearbox can vary from 3.5 to 10 million rubles. That is why it is important to implement such methods of diagnostics, which allow revealing the condition of gearboxes in the shortest possible time and without disassembling corresponding units. Determination of the actual technical condition of motor-wheel gearboxes is possible by different methods: vibroacoustic; acoustic; thermal; physical and chemical analysis of spent operating materials. The studies showed that none of these methods can be used as a universal one. When justifying and selecting the most suitable method, different factors should be considered, including technological, or a combination of methods should be applied, which will reduce risks, but at the same time increase costs. It is necessary to develop a better diagnostic method based on the use of several methods simultaneously.

Experimental testing of open pit dump trucks in operating conditions

2020 ◽  
pp. 530-542
Author(s):  
A. G. Zhuravlev ◽  
M. V. Isakov
Keyword(s):  
Power Plants ◽  
Experimental Testing ◽  
Operating Conditions ◽  
Open Pit ◽  
Dump Truck ◽  
Experimental Measurements ◽  
Complex Data ◽  
Special Unit ◽  
Operating Modes ◽  
Dump Trucks

The high importance of optimizing the operation of quarry transport is confirmed by the leading share of its costs in the total cost of mining. The current direction of optimization is the development and implementation of digital technologies for processing complex data on the parameters of transport vehicles. The solution of the above issues should be based on the results of scientific research on the collection and processing of information. Developed a set of techniques to perform experimental measurements of working parameters of mining dump trucks as part of a special unit experiments, and long monitoring measurements. A set of equipment for performing experimental measurements, as well as its installation on a dump truck is presented. The data of experimental measurements and a methodical approach to their analysis are presented. In particular, it shows the identification of operating modes of the power plant and the construction of the load diagram, the identification of elements of the transport cycle, etc. The approach to substantiation of innovative designs of power plants adapted to the conditions of a particular quarry is shown on the example of calculated schedules of energy consumption and reserve of recovery of braking energy. The proposed hardware-methodical complex is a research model for the development of methods for automated data collection and processing in the formation of elements of digital mining production.

scholarly journals Study on energy conservation and emission reduction of pure electric non-road mining dump truck

2021 ◽  
Vol 268 ◽  
pp. 01025
Author(s):  
Huawei Zhang ◽  
Yong Ma ◽  
Zhenzhong Yang ◽  
Lijun Wang ◽  
Shuman Guo ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Emission Reduction ◽  
Field Experiments ◽  
Effective Means ◽  
Pollutant Emissions ◽  
Open Pit ◽  
Open Pit Mining ◽  
Dump Truck ◽  
Mobile Machinery ◽  
Mine Dump

Non-road mobile machinery emits a large amount of pollutants, which has attracted wide attention. As one of the effective means of air pollution control, the application of new energy technology in the field of non-road mobile machinery is slightly inadequate. Mine dump trucks play an important role in the transportation of open-pit mining areas, but they have high power, high level of activity, and difficult to control pollutant emissions. In this study, field experiments were carried out in several open pit mines in China. By comparing with similar diesel engine powered vehicles, the potential of energy consumption and emission reduction was evaluated. Research shows that pure electric mine dump truck can effectively reduce energy consumption and emissions.

scholarly journals Modelling for degreasing the mining equipment downtime by optimizing blasting period at Erdenet surface mine

2021 ◽  
Vol 280 ◽  
pp. 08001
Author(s):  
Khavalbolot Kyelgyenbai ◽  
Serhii Pysmennyi ◽  
Serhii Chukharev ◽  
Batbolor Purev ◽  
Ijilmaa Jambaa
Keyword(s):  
Open Pit ◽  
Open Pit Mining ◽  
Dump Truck ◽  
Mining Equipment ◽  
Weekly Basis ◽  
Surface Mine ◽  
Molybdenum Deposit ◽  
The World ◽  
Dump Trucks ◽  
Mining Works

Erdenet copper-molybdenum deposit is the biggest one in the world and has a significant impact on Mongolian society and economy. Today LIEBHERR-994B hydraulic shovels from Germany, electric shovels including EKG-10 and EKG-15 from Russia operate for the mining works, and dump truck BelAZ - 75130 used for transportation. The causes of shovel downtime are classified as technical, technological, and organizational. During the study period, 41% of the total downtime of the excavator’s park was technical, 45% was technological, and 11% was organizational downtime. For shovels, 7% of technological downtime is due to blasting, and for dump trucks 8.7%. In open-pit mining, blasting is performed on a weekly basis, so the duration of this technological downtime can be considered almost constant. If the time between blasts or period of blasting can be arranged optimally, it will be possible to reduce mining equipment’s downtime due to blasting.

Digital Transformation of Surface Mining and New Generation of Open-Pit Equipment

2020 ◽  
pp. 10-12
Author(s):  
D.Ya. Vladimirov ◽  
A.F. Klebanov ◽  
I.V. Kuznetsov
Keyword(s):  
Control System ◽  
Surface Mining ◽  
Digital Transformation ◽  
Industrial Safety ◽  
Open Pit ◽  
Dump Truck ◽  
Mining Equipment ◽  
Robotic Control ◽  
Mining Operations ◽  
Dump Trucks

The The paper addresses the issues of designing onboard systems and complex digitalization of open-pit mining equipment. A generalized schematic diagram and composition of the On-Board Robotic Control System for open-pit equipment (OBRCS OPE) are provided. The option of the On-Board Robotic Control System for mining dump trucks (OBRCS MDT) and schematics of the on-board robotic system of the BELAZ dump truck are described in more detail. A layout option is suggested for an autonomous ready dump truck, a modification that meets all the requirements for the digital transformation (DT) generation of dump trucks i.e. the ability to operate as part of the mine fleet management systems and robotic control systems, as well as the availability of modern on-board industrial safety systems and remote diagnostics. The DT Generation of mining equipment will allow mining companies to achieve the up-to-date level in digital transformation of surface mining operations and will cut the amount of investments required in upgrading the mining transport system.

Engine Parameters Optimization Design for Mine Dump Truck Based on the Genetic Algorithm

2013 ◽  
Vol 373-375 ◽  
pp. 2143-2146
Author(s):  
Lv Chang
Keyword(s):  
Genetic Algorithm ◽  
Fuel Economy ◽  
Optimization Design ◽  
Dynamic Performance ◽  
Simulation Software ◽  
Parameters Optimization ◽  
Function Optimization ◽  
Dump Truck ◽  
Dump Trucks ◽  
Mine Dump

The interface is constructed between the mine dump trucks performance simulation software and the genetic algorithm, aiming at the very complex relationship between the mine dump truck engine and its dynamic performance and fuel economy. The optimization of the objective function, optimization variables and constraints are designed. Genetic algorithm is used to design type 3303B mine dump trucks. The optimization of the design results are compared and analyzed on before and after and the results show that the fuel economy of the optimization of genetic algorithm is better than the original car, fuel consumption reduced 0.51 every km.

scholarly journals TECHNOLOGICAL PECULIAR FEATURES IN DEPOSIT OPENING OF SOLID MINERALS WHILE USING ARTICULATED DUMP TRUCKS

2018 ◽  
Vol 17 (3) ◽  
pp. 238-245
Author(s):  
A. V. Glebov
Keyword(s):  
Import Substitution ◽  
Ore Deposits ◽  
Open Pit ◽  
Open Pit Mining ◽  
Dump Truck ◽  
Design Decision ◽  
Wheel Drive ◽  
Road Tunnels ◽  
Dump Trucks ◽  
Four Wheel Drive

The paper provides an analysis for production of four-wheel drive dump trucks with an articulated frame and it also describes a practical experience pertaining to operation of dump trucks as mining automotive transport. Technical characteristics for some models of articulated dump trucks manufactured in Russia and Belarus are presented in the paper. The paper gives examples for transportation of run-of-mine ore at enterprises of Russia and abroad. The attention has been focused on specific features concerning organizational, technological and design decision making while introducing and promoting articulated dump trucks. It has been established that articulated dump trucks make it possible to improve an efficiency of mine development during construction period and when ore mining and processing enterprises are put into operation especially in geographically remote and inaccessible areas. The paper proposes technological solutions allowing to expand the scope of articulated dump truck application at mining enterprises while using them for quarry development excavating deep deposits of solid minerals. It has been revealed that reduction in overburden volume can be achieved by transition from a certain depth to lower capacity dump trucks or special dump trucks operating on elevated slopes of roads. The paper shows that one of perspective directions for development of mining technology on kimberlite deposits is an opening of lower quarry horizons by peripheral road tunnels of spiral shape while using articulated dump trucks. The presented technological solutions require further research and design consideration and study and they will allow to ensure resource efficiency and safety of surface mining while extracting minerals at previously uneconomic ore deposits. In order to realize an import substitution program for four-wheel drive dump trucks with an articulated frame it is necessary to carry out marketing research on potential market for machines of this class required for open-pit mining in order to justify prospects for provision of the Russian production market.

scholarly journals Problems of Operational Safety of Dump Trucks in Open Pit Mine

2019 ◽  
Vol 134 ◽  
pp. 01005
Author(s):  
Boris Gerike ◽  
Aleksandr Zacharov ◽  
Pavel Gerike ◽  
Yuriy Drozdenko
Keyword(s):  
Vibration Analysis ◽  
Open Pit ◽  
Signal Spectrum ◽  
Dump Truck ◽  
Vibrational Signal ◽  
The Road ◽  
Analysis Methods ◽  
Control Units ◽  
Dump Trucks ◽  
And Control

One of the risk factors for dump trucks drivers is the over-vibration on various parts and control units. This leads to the formation of high intensity of work. To search for the causes of over-vibration it is proposed to use vibration analysis methods. To search for the causes of over-vibration it is proposed to use vibration analysis methods in time when dump truck is not moving. This allows the escaping the influence of external factors such as like profile of the road, slope, etc. The analysis of the vibrational signal spectrum allows determining the type of defect with a high degree of reliability.

scholarly journals Distribution of Static Normal Reactions to Wheels of Open-Pit Dump Trucks Depending on the Longitudinal and Cross Sections of the Open-Pit Road

2019 ◽  
Vol 105 ◽  
pp. 03009
Author(s):  
Michail Dadonov ◽  
Alexander Kulpin ◽  
Oleg Ostanin ◽  
Erkin Suleimenov
Keyword(s):  
Rock Mass ◽  
Cross Sections ◽  
Normal Load ◽  
Operating Conditions ◽  
Open Pit ◽  
Dump Truck ◽  
Mass Transportation ◽  
Premature Failure ◽  
Dump Trucks ◽  
The Cost

Vehicle costs for rock mass transportation are more than 50% of total costs, among which 25 — 30% are tire costs. The average tire life in mining enterprises is lower than that the value recommended by production plants. The tire life of open-pit dump trucks is more dependent on the normal load on the wheel. The main factor in the change of the normal load is location of the wheel on the dump truck and the open-pit road’s section. Determination of the maximum loaded tire in different operating conditions will allow increasing the tire life and preventing its premature failure. The TKPH index (tire performance) recommended by tire manufacturers does not take into account the diversity of mining conditions and variations of sections of open-pit roads on different routes. The average load per trip is defined as movement of a loaded open-pit truck and an empty open-pit truck on a straight reach of a road. The proposed method for recording of redistribution of the load on the wheel allows making adjustments to recording of TKPH indexes and thereby effectively managing the tire life, which in turn will make it possible to more fully use the tire life, increase its reliability and reduce the cost of rock mass transportation.

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