Theory of Vibrations of Sugar Beet Leaf Harvester Front-Mounted on Universal Tractor

Bulgakov, Volodymyr; Аdаmchuk, Valerii; Nozdrovický, L.; Ihnatiev, Yevhen

doi:10.1515/ata-2017-0019

Cited by 19 publications

(13 citation statements)

References 2 publications

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“…The results of calculating the lost profit due to soil contamination of root crops Analyzing the data in Table 1, we can conclude that with the contamination of root crops within 10%, the lost proceeds from their sale will be 0.8 thousand rubles/ha. Let's calculate the cost of transportation of sugar beet root crops after harvesting with and without the use of the proposed cleaning device [9][10][11][12][13][14][15].…”

Section: Research Resultsmentioning

confidence: 99%

Reduction of soil layer losses when harvesting sugar beet in the conditions of the central black earth region

et al. 2020

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When cultivating sugar beets, harvesting is one of the most labor-intensive operations. But in terms of quality and operational and technological performance, the machines used do not meet modern agrotechnical requirements, especially in conditions of high soil moisture (25 - 29%). With an increase in soil moisture, its adhesion to the working surfaces of the digging organs and the heap cleaner increases, reducing their separating ability. We propose to improve the cleaning technology by modernizing the design of the separating stars. This is achieved by using cylindrical brushes (in the amount of three pieces), which are mounted vertically to the horizontal plane of the star's rods. One end of the cylindrical brush is attached to one of the ends of the star bar, and the other end of the brushes is in the hollow bracket. All brushes are located at the same distance from each other along the periphery of the star. The second ends of the brushes, located in the hollow bracket, are fixed to each other and move freely in it. This improved design will allow the brushes to interact with the contaminated surface of the sprocket guard, improving their cleaning ability and eliminating cleaning breaks when working in harsh conditions.

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Section: Research Resultsmentioning

confidence: 99%

Reduction of soil layer losses when harvesting sugar beet in the conditions of the central black earth region

et al. 2020

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“…Based on the principle of a mower-shredder, a new universal front-mounted beet topper machine has been developed, which has been mounted on a wheeled tractor (Figure 1a). This rotary beet topper machine cuts in a continuous way both the rosette of the leaves and the weeds, transporting the cut material into a vehicle that follows sideways [8].…”

Section: The Developed and Built Front-mounted Beet Topper Machinementioning

confidence: 99%

“…An equivalent scheme of movement only in the longitudinal-vertical plane of the front-mounted beet topper machine has been initially set up ( Figure 2) [8]. In the equivalent scheme two different conditions have been considered: (i) the feeler wheel is reaching the top of soil irregularity; (ii) the feeler wheel is on the top of this irregularity.…”

Section: Theoretical Study Of the Oscillations Of The Front-mounted Bmentioning

confidence: 99%

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Oscillations Analysis of Front-Mounted Beet Topper Machine for Biomass Harvesting

et al. 2019

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The beet leaves and tops, which currently are excluded from the production process of sugar, could be an interesting opportunity for the production of renewable energy. Usually, the defoliators are joined with root collar remover machines, which are installed in front of the tractor. In working conditions on soils having natural roughness these front-mounted beet topper machines carried by tractors are affected by angular oscillations in a longitudinal-vertical plane that strongly affect the cutting uniformity. A theoretical study of these oscillations was carried out in this paper using Lagrange II kind equations, with the aim to assess the design and kinematic parameters of a front-mounted beet topper, corresponding to more stable and suitable movements in the longitudinal-vertical plane. A numerical simulation was then performed adopting the developed mathematical model. In order to improve the efficiency of this harvesting machine, a significant role is assumed by the soil preparation. In this work the stiffness and damping parameters of the feeler wheels pneumatic tires have been considered constant but further studies are in progress to assess their effective importance and influence for reducing the vibration of the front-mounted beet topper machine with the final aim to achieve a better machine design.

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“…Therefore, the scientific and research community continue to search for design and technical solutions in order to meet these operative needs and, at the same time, reduce the energy required by the digging and harvesting process of the beets, so increasing the productivity and reliability of the machines [34][35][36][37][38][39]. The study, design and prototyping of a new sugar beet top harvester in Ukraine that, when front mounted on the tractor, considerably increases beet top harvesting performances has to be considered in this framework [40][41][42]. According to experimental data obtained from field tests, the aim of this study was to evaluate the main performance parameters related to the operation of this new machine.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Front-Mounted Beet Topper Machine for Biomass Harvesting

et al. 2020

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Sugar beet is an extensive crop of great agronomic value with significant productive and economic returns and Ukraine’s sugar beet accounts for about 5.1% of the overall world production. Sugar beets and the by-products resulting from its manufacturing transformation are a significant renewable energy resource. A new high-quality performance prototype of a sugar beet top harvester, front mounted on a tractor, was built by the authors in Ukraine. The aim of this study is to evaluate the main performance parameters related to the operation of this new machine. Field tests were carried out linking the prototype to a wheel tractor, whilst suitable sensors measured the significant kinematic and dynamic parameters, allowing experimental data collection to assess the machine’s performance parameters. The entire technological process of harvesting and transporting the beet tops to the beet top storage unit required power ranging from 6.42 to 17.65 kW. At the topmost tested forward speed, the required tractor traction force was less than 1.9 kN with the power required by the shaft that drives the screw conveyor ranging from 3.1 to 4.6 kW. This value was the lowest for a speed of the tractor–beet top harvesting machine aggregate ranging from 0.9 to 1.2 m · s − 1 .

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Theory of Vibrations of Sugar Beet Leaf Harvester Front-Mounted on Universal Tractor

Cited by 19 publications

References 2 publications

Reduction of soil layer losses when harvesting sugar beet in the conditions of the central black earth region

Reduction of soil layer losses when harvesting sugar beet in the conditions of the central black earth region

Oscillations Analysis of Front-Mounted Beet Topper Machine for Biomass Harvesting

Performance Assessment of Front-Mounted Beet Topper Machine for Biomass Harvesting

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