Determination of material's tightening force with chipper knife
Chippers designed for chopping wood at the sawmill waste, produce of wood chips could be used in agriculture; they used at development of lands derived from the rotation overgrown with undergrowth and bushes. The improvement and optimization of parameters of chipper RB-750 with a combined working bo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
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Federal Agricultural Research Center of the North-East named N.V. Rudnitsky
2016-02-01
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| Series: | Аграрная наука Евро-Северо-Востока |
| Subjects: | |
| Online Access: | https://www.agronauka-sv.ru/jour/article/view/15 |
| _version_ | 1797290371310419968 |
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| author | N. F. Baranov V. S. Fufachev I. V. Stupin |
| author_facet | N. F. Baranov V. S. Fufachev I. V. Stupin |
| author_sort | N. F. Baranov |
| collection | DOAJ |
| description | Chippers designed for chopping wood at the sawmill waste, produce of wood chips could be used in agriculture; they used at development of lands derived from the rotation overgrown with undergrowth and bushes. The improvement and optimization of parameters of chipper RB-750 with a combined working body, the effectiveness of which depends on a number of structural factors: the angle tightening angle pinch location shearbar and others is conducted in Vyatka State Agricultural Academy. Angle of incidence in the cutting process changes its value and affects the strength of the material tightening with knife. The maximum value of a tightening force is possible at the smallest impact angle, but it degrades the quality of the finished product. To justify the design parameters of the working body theoretical research were conducted with the consideration of two major cases: when the angle of incidence is less and more than 90°. The obtained dependences allow to determine the parameters of the cutting pair providing material delay at changing cutting conditions: the ratio of the components of the cutting force; the coefficient of friction of material on the surface of working bodies. Experimental studies on confirming of the theoretical assumptions were made in a laboratory machine which allows to register the effect of a tightening of sample material with knives of grinding drum of the working body. Completed experiments yielded a regression model that characterizes the effect of investigated factors on the strength of a material tightening with knives. The experimental results confirm the theoretical assumptions put forward and allow to draw conclusions about the optimal values of the factors: angle of delaying у = 4.5...4.8°; location of shearbar below the horizontal axis of the drum on 20...21 mm; angle of crushing material х = 30°. |
| first_indexed | 2024-03-07T19:21:28Z |
| format | Article |
| id | doaj.art-ea22abe967fb4ec09da0fccc7fedcb62 |
| institution | Directory Open Access Journal |
| issn | 2072-9081 2500-1396 |
| language | Russian |
| last_indexed | 2024-03-07T19:21:28Z |
| publishDate | 2016-02-01 |
| publisher | Federal Agricultural Research Center of the North-East named N.V. Rudnitsky |
| record_format | Article |
| series | Аграрная наука Евро-Северо-Востока |
| spelling | doaj.art-ea22abe967fb4ec09da0fccc7fedcb622024-02-29T11:31:08ZrusFederal Agricultural Research Center of the North-East named N.V. RudnitskyАграрная наука Евро-Северо-Востока2072-90812500-13962016-02-0101707514Determination of material's tightening force with chipper knifeN. F. Baranov0V. S. Fufachev1I. V. Stupin2Vyatka State Agricultural AcademyVyatka State Agricultural AcademyVyatka State Agricultural AcademyChippers designed for chopping wood at the sawmill waste, produce of wood chips could be used in agriculture; they used at development of lands derived from the rotation overgrown with undergrowth and bushes. The improvement and optimization of parameters of chipper RB-750 with a combined working body, the effectiveness of which depends on a number of structural factors: the angle tightening angle pinch location shearbar and others is conducted in Vyatka State Agricultural Academy. Angle of incidence in the cutting process changes its value and affects the strength of the material tightening with knife. The maximum value of a tightening force is possible at the smallest impact angle, but it degrades the quality of the finished product. To justify the design parameters of the working body theoretical research were conducted with the consideration of two major cases: when the angle of incidence is less and more than 90°. The obtained dependences allow to determine the parameters of the cutting pair providing material delay at changing cutting conditions: the ratio of the components of the cutting force; the coefficient of friction of material on the surface of working bodies. Experimental studies on confirming of the theoretical assumptions were made in a laboratory machine which allows to register the effect of a tightening of sample material with knives of grinding drum of the working body. Completed experiments yielded a regression model that characterizes the effect of investigated factors on the strength of a material tightening with knives. The experimental results confirm the theoretical assumptions put forward and allow to draw conclusions about the optimal values of the factors: angle of delaying у = 4.5...4.8°; location of shearbar below the horizontal axis of the drum on 20...21 mm; angle of crushing material х = 30°.https://www.agronauka-sv.ru/jour/article/view/15chipperexperimental machinecutting processcutting forcetightening strengthimpact anglepinching angleoptimal values |
| spellingShingle | N. F. Baranov V. S. Fufachev I. V. Stupin Determination of material's tightening force with chipper knife Аграрная наука Евро-Северо-Востока chipper experimental machine cutting process cutting force tightening strength impact angle pinching angle optimal values |
| title | Determination of material's tightening force with chipper knife |
| title_full | Determination of material's tightening force with chipper knife |
| title_fullStr | Determination of material's tightening force with chipper knife |
| title_full_unstemmed | Determination of material's tightening force with chipper knife |
| title_short | Determination of material's tightening force with chipper knife |
| title_sort | determination of material s tightening force with chipper knife |
| topic | chipper experimental machine cutting process cutting force tightening strength impact angle pinching angle optimal values |
| url | https://www.agronauka-sv.ru/jour/article/view/15 |
| work_keys_str_mv | AT nfbaranov determinationofmaterialstighteningforcewithchipperknife AT vsfufachev determinationofmaterialstighteningforcewithchipperknife AT ivstupin determinationofmaterialstighteningforcewithchipperknife |