Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working Parts
To reduce the damage level of wheat grains during its post-harvest processing, it is proposed to replace steel working parts in lifting and transporting machines with polymer ones.(Research purpose) Experimentally determine the dependence of the degree of wheat grain damage on the number of collisio...
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| Format: | Article |
| Language: | Russian |
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Federal Scientific Agroengineering Centre VIM
2020-06-01
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| Series: | Сельскохозяйственные машины и технологии |
| Subjects: | |
| Online Access: | https://www.vimsmit.com/jour/article/view/382 |
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| author | V. I. Pakhomov S. V. Braginets E. V. Benova O. N. Bakhchevnikov D. S. Podlesnyy |
| author_facet | V. I. Pakhomov S. V. Braginets E. V. Benova O. N. Bakhchevnikov D. S. Podlesnyy |
| author_sort | V. I. Pakhomov |
| collection | DOAJ |
| description | To reduce the damage level of wheat grains during its post-harvest processing, it is proposed to replace steel working parts in lifting and transporting machines with polymer ones.(Research purpose) Experimentally determine the dependence of the degree of wheat grain damage on the number of collisions, the incidence angle and the hoisting-and-transport machines working parts surface material when the grain moves at a speed of up to 3.5 meters per second.(Materials and methods) Experiments were carried out on a unit that reproduced the low-speed collision conditions of wheat grains with a smooth steel or plastic surface plate at various angles of incidence and the number of impacts.(Results and discussion) The authors identified a significant reduction in grain damage in a collision with a plastic plate compared to a steel plate – by 8-10 percentage points – is observed only at incidence angles of 60-90 degrees and the number of strokes from 5 to 10. It was found that at incidence angle up to 60 degrees, the specified difference didn’t exceed 4 percentage points and reached zero at an angle of 45 degrees. The low efficiency of replacing steel working parts with plastic ones to reduce grain damage when driving at low speed was explained by the weak manifestation of the decrease effect in the potential energy of grain deformation upon impact on a plastic surface at a collision low speed.(Conclusions) The authors determined that when grains moved at a speed of less than 3.5 meters per second in a rarefied stream without interaction between them, when individual grains collided with the hoisting-and-transport machines working parts, replacing steel working parts with plastic ones was impractical. |
| format | Article |
| id | doaj-art-bc06281f058a45c3947e4a84df7e4f13 |
| institution | DOAJ |
| issn | 2073-7599 |
| language | Russian |
| publishDate | 2020-06-01 |
| publisher | Federal Scientific Agroengineering Centre VIM |
| record_format | Article |
| series | Сельскохозяйственные машины и технологии |
| spelling | doaj-art-bc06281f058a45c3947e4a84df7e4f132025-08-20T03:23:15ZrusFederal Scientific Agroengineering Centre VIMСельскохозяйственные машины и технологии2073-75992020-06-01142535810.22314/2073-7599-2020-14-2-53-58339Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working PartsV. I. Pakhomov0S. V. Braginets1E. V. Benova2O. N. Bakhchevnikov3D. S. Podlesnyy4Agricultural Research Center “Donskoy”; Don State Technical UniversityAgricultural Research Center “Donskoy”Agricultural Research Center “Donskoy”Agricultural Research Center “Donskoy”Don State Technical UniversityTo reduce the damage level of wheat grains during its post-harvest processing, it is proposed to replace steel working parts in lifting and transporting machines with polymer ones.(Research purpose) Experimentally determine the dependence of the degree of wheat grain damage on the number of collisions, the incidence angle and the hoisting-and-transport machines working parts surface material when the grain moves at a speed of up to 3.5 meters per second.(Materials and methods) Experiments were carried out on a unit that reproduced the low-speed collision conditions of wheat grains with a smooth steel or plastic surface plate at various angles of incidence and the number of impacts.(Results and discussion) The authors identified a significant reduction in grain damage in a collision with a plastic plate compared to a steel plate – by 8-10 percentage points – is observed only at incidence angles of 60-90 degrees and the number of strokes from 5 to 10. It was found that at incidence angle up to 60 degrees, the specified difference didn’t exceed 4 percentage points and reached zero at an angle of 45 degrees. The low efficiency of replacing steel working parts with plastic ones to reduce grain damage when driving at low speed was explained by the weak manifestation of the decrease effect in the potential energy of grain deformation upon impact on a plastic surface at a collision low speed.(Conclusions) The authors determined that when grains moved at a speed of less than 3.5 meters per second in a rarefied stream without interaction between them, when individual grains collided with the hoisting-and-transport machines working parts, replacing steel working parts with plastic ones was impractical.https://www.vimsmit.com/jour/article/view/382wheat graingrain damagegrain transportationpost-harvest grain handlingplastic working partshoisting-and-transport machines |
| spellingShingle | V. I. Pakhomov S. V. Braginets E. V. Benova O. N. Bakhchevnikov D. S. Podlesnyy Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working Parts Сельскохозяйственные машины и технологии wheat grain grain damage grain transportation post-harvest grain handling plastic working parts hoisting-and-transport machines |
| title | Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working Parts |
| title_full | Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working Parts |
| title_fullStr | Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working Parts |
| title_full_unstemmed | Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working Parts |
| title_short | Grain Damage in LowSpeed Collision with the Surfaces of the HoistingandTransport Machines Working Parts |
| title_sort | grain damage in low speed collision with the surfaces of the hoisting and transport machines working parts |
| topic | wheat grain grain damage grain transportation post-harvest grain handling plastic working parts hoisting-and-transport machines |
| url | https://www.vimsmit.com/jour/article/view/382 |
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