Презентация на английском языке на тему EDX eSeed precision air seeder (бакалавриат 3-й курс)

Students fulfill the grop DAI-31:Bagiryan B.A.  EDX eSeed precision air seeder Astrakhan 2016The Russian Ministry of Education and Science The Federal State Education Institution of Higher Education " Astrakhan State University " Srtem 35.04.06  «Agroengineering»

The electrical power to drive the systems on the EDX eSeed precision air seeder is suppliedvia the high voltage system (“High Voltage”) of the tractor. Via TIM (Tractor ImplementManagement) the control electronics on the tractor are accessed. The implement controlsitself through its own intelligence and makes use of the two most current and modern technologiesin the range of ISOBUS for further improvement and efficiency of the machine.Short abstract:EDX eSeed – detailed view 230 V metering servo-motorEDX eSeed In contrast to the normal EDX, the drive systems for the blower fan and metering on the EDX eSeed have been replaced by high voltage motors (400 V) and are accessed via the power inverters on the tractor. The metering drive systems have been replaced by efficient servo-motors with clearly improved dynamics.On large pneumatic seed drills, the blower fans are hydraulically driven, an arrangement which offers a high degree of flexibility but, due to poor efficiency results in high fuel consumption. More and more comfort functions meanthat the electric 12 V systems on usual tractors meet their limits.Hydraulics of the new system are only needed for the actuation of hydraulic rams, for example when folding. An additional advantage of the system is the independence from the engine speed of the tractor so that it is possible to operate the tractor at its optimum fuel consumption.Detailed view 400 V fertiliser blower fan
Electric drive systemsElectric drive systems - that drive system, of dynamic illumination to draw, high precision in the spatial ripple optimum speed control and homogeneity and high quality. This system, take-off and moment, speed and и adopted with required accuracy and of recent.Electric drive systems made of a motor, the reference position and enterprise content management , that have 3 parameter is enabled only for control : position, speed , current. The appointment Electric drive systems - controls its speed, , of the torque and for machine parts components mechanisms . As displacement, angle and fast control of moment and speed effected by feedback or closed loop techniques with automatic setting function for real time, to prevent disappearances excellent dynamic performance.
Electric drive systemsThanks to the electric drives? the efficiency of the total system is clearlyimproved. On hydrostatic drive systems a mechanical efficiency of 60 % is anticipated.With an electrical system today, more than85 % is achieved. 20 kW, consumed as mechanical power, requires approximately 33.3 kW drive capacity in a hydraulic system, whereas in an electric drive line only approximately 23.5 kW are necessary. Here alone, fuel savings of up to 50 l of diesel per day are possible.The scheme 1. Hydraulic drive
The scheme EDX eSeed precision air seeder and implementing Tractor-Implement-Management (TIM)The scheme 2. EDX eSeed-electrical machine design TIM- implementing Tractor-Implement-Management Additional savings (of approx. 10 %) are realisedbecause the seeder sends its demands foreach individual operating parameter to thetractor. The implement controls the tractorand connects with it to become a modular selfpropelledvehicle – thus implementing Tractor-Implement-Management (TIM). So, for example,on the headland, the speed of the blowerfan drive can be reduced automatically by theimplement resulting, apart from additionalfuel saving in a clear reduction of noise level.
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