Results of the development and testing of traction electrical equipment of mining dump truck with load capacity of 240 tons

2015 ◽  
Vol 86 (3) ◽  
pp. 139-146 ◽  
Author(s):  
A. B. Vinogradov ◽  
N. E. Gnezdov ◽  
S. V. Zhuravlev ◽  
A. N. Sibirtsev
Keyword(s):  
Load Capacity ◽  
Electrical Equipment ◽  
Dump Truck ◽  
Mining Dump Truck

scholarly journals Increasing mining dump trucks operation efficiency with the use of gas piston engines

2020 ◽  
pp. 77-85
Author(s):  
Mark L. Khazin ◽  
◽  
Vitalii V. Furzikov ◽  
Petr I. Tarasov ◽  
◽  
...  
Keyword(s):  
Natural Gas ◽  
Load Capacity ◽  
Motor Fuel ◽  
Energy Carrier ◽  
Dump Truck ◽  
Piston Engine ◽  
Engine Design ◽  
Dump Trucks ◽  
Mining Dump Truck ◽  
Near Future

Research aim is to analyze the prospects for increasing the efficiency of heavy-duty mining dump trucks operation through the use of natural gas as the main energy carrier. Research methodology included bench tests of a gas piston engine (GPE) KAMAZ mod. 820.60-260 with a capacity of 191 kW and the construction of forecast values of GPE parameters for the BELAZ-75319 mining dump truck with a load capacity of 240 tons. Results. A mathematical model and technique have been developed that allows predicting the main parameters of a gas piston engine and optimizing its economic and environmental characteristics. The use of natural gas as a motor fuel, with an unchanged engine design, leads to a decrease in its power. Currently, gas modifications are being created on the basis of existing diesel engines, and it is not always possible to implement any design measures at this stage. To realize all the capabilities of a gas engine, it should initially be designed for gas motor fuel. This technique is based on the experimental data of low-power gas piston engines and can be used for high-power gas engines studies intended for installation on mining dump trucks. Conclusions. Increasing the efficiency of mining dump trucks in the near future is possible through the use of natural gas as the main energy carrier. The use of natural gas as a motor fuel allows to increase the life of the engine, reduce the noise level and toxicity of exhaust gases, and reduce fuel costs.

scholarly journals Methodology for determining permissible operating modes of DC traction motor of quarry dump truck to ensure satisfactory commutation

2021 ◽  
pp. 36-40
Author(s):  
V. V. Kharlamov ◽  
◽  
Yu. V. Moskalev ◽  
S. N. Naiden ◽  
◽  
...  
Keyword(s):  
Experimental Data ◽  
Dc Motor ◽  
Dump Truck ◽  
Traction Motor ◽  
Operating Modes ◽  
Excitation Coefficient ◽  
Mining Dump Truck

The article considers an approach to determining the permissible ranges of changes in the armature voltage, armature current and the excitation coefficient of the DC traction motor of a mining dump truck to ensure satisfactory commutation. When the DC motor is running in the specified modes, the probability of sparking in the collector-brush unit with a degree of 2 points will be minimal. A method for determining the permissible operating modes of a mining dump truck traction motor to ensure satisfactory commutation is proposed. The method allows, based on the analysis of experimental data, to determine the permissible ranges of changes in voltage, armature current and excitation coefficient, at which the degree of sparking does not exceed 1½ points

Comparative Study on Optimization Design Methods of Steering Mechanism

2012 ◽  
Vol 490-495 ◽  
pp. 2191-2195
Author(s):  
Jing Gao Lin ◽  
Jue Yang ◽  
Wen Ming Zhang
Keyword(s):  
Optimization Design ◽  
Design Method ◽  
Steering System ◽  
Paper Analysis ◽  
Design Methods ◽  
Dump Truck ◽  
Mechanism Analysis ◽  
Steering Mechanism ◽  
Optimal Design Method ◽  
Mining Dump Truck

In the paper, analysis and comparison is made for different optimization design methods of the separation steering trapezoidal mechanism based on the steering system of 170 tons mining dump truck. The optimal design method is obtained, and research shows that the steering mechanism analysis method introduced in many automotive design textbooks has errors and should be improved.

Comparative Analysis of Sino-Foreign Wind Load Standard

2014 ◽  
Vol 1079-1080 ◽  
pp. 187-190
Author(s):  
Chun Li
Keyword(s):  
Comparative Analysis ◽  
Load Capacity ◽  
Chinese American ◽  
Electrical Equipment ◽  
Wind Load ◽  
Design Codes ◽  
Foreign Experience ◽  
The Difference ◽  
At Home

It has great significanceto conduct comparative analysis on wind load criteria at home and abroad forimproving anti-wind load capacity of the structure. A brief overview of Chinese,American, European and Australia wind load design codes of structure ispresented in this paper. The difference among these wind load codes, theadvantages and disadvantages of Chinese related standards are pointed out.Through comparison of wind load standard between Chinese code and otherstandards, through learning from foreign experience about the determination ofwind load criteria, improvement of wind load of electrical equipment andstandard revised recommendations are provided.

scholarly journals Fluxgate Sensors for Onboard Weighing Systems of Heavy-Duty Dump Trucks

2021 ◽  
Vol 19 (3) ◽  
pp. 25-32
Author(s):  
A. P. Nikishechkin ◽  
L. M. Dubrovin ◽  
V. I. Davydenko
Keyword(s):  
Ease Of Use ◽  
The Body ◽  
Dump Truck ◽  
Measuring Device ◽  
Traction Motors ◽  
Fluxgate Sensor ◽  
Useful Signal ◽  
Control Section ◽  
Mining Dump Truck ◽  
Excitation Winding

The article reviews the results of the authors’ research on the possibility of using the magnetic field strength generated by DC traction motors as a useful signal carrying information about weight of cargo transported by a mining dump truck.The objective of the research was to find a way to determine weight of cargo carried by a mining dump truck. In contrast to the existing onboard weighing systems, it becomes possible to create a compact autonomous device that does not require integration of sensors into the body structure and electrical circuits of the truck.Problems of increasing the efficiency of measuring devices based on fluxgate converters are considered with the view of using them as onboard systems for estimating cargo weight. The sensitivity of the fluxgate sensor can be increased by increasing both the amplitude and the effective value of the voltage applied to its excitation winding. The proposed original circuit for feeding the fluxgate sensor’s excitation winding from a modulated signal generator made on logical elements allows increasing the voltage supplied to the fluxgate sensor’s excitation winding without increasing the supply voltage, and by increasing voltage surges at the fronts of rectangular modulated high-frequency pulses, as well as due to resonant phenomena. The use of such a generator excludes the influence of the fluxgate sensor’s excitation winding on the generator frequency, since the frequency of modulating signals becomes the operating frequency of the fluxgate sensor, and it remains unchanged. The increased sensitivity makes it possible to install the sensor in any convenient place in the dump truck cab, and not in the immediate vicinity of traction motors.Evaluation of cargo weight is carried out during movement of the dump truck along the control section of the road. The readings are taken from an ammeter (milliammeter), the scale of which is pre-calibrated in mass units. Measurements of mass should be carried out under the same modes of dump truck movement and with the same location of the fluxgate sensor as when calibrating the scale of the measuring device. The control section of the route on which the measurements are carried out must be the same or similar to the one on which the measuring device was calibrated.The proposed device is distinguished by ease of use, is characterised by low energy consumption, is compact, does not contain expensive elements and does not require careful maintenance.

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