Traktory i sel'hozmashiny最新文献

{"title":"Factors affecting the change in wheel resistance and track depth of wide-grip sprinkler machines","authors":"L. A. Zhuravleva, А ЖуравлеваЛ., N. V. Tkhuan, В ТхуанН.","doi":"10.31992/0321-4443-2020-6-67-71","DOIUrl":"https://doi.org/10.31992/0321-4443-2020-6-67-71","url":null,"abstract":"The operation of sprinkler machines (SM) is accompanied by the formation of a track with un-dercarriages, leading to an increase in resistance to wheel movement and leading to many negative consequences: over-watering of irrigated areas, an increase in energy expended on movement, an increase in soil compaction, etc. The depth of the track and the resistance to wheel movement de-pend on many parameters: soil moisture, irrigation mode, soil bearing capacity, wheel geometry, etc. But the greatest influence is exerted by the load on the wheel axle and the air pressure in the tires. The article presents the results of laboratory studies of installations that simulate the undercar-riage of sprinkler machines, which showed that while maintaining a constant air pressure in the tires, an increase in the axle load of the pneumatic wheel from 0.1 kN to 1.0 kN leads to an increase in the track depth to 4 cm, and also a linear increase in the resistance to wheel movement. With an increase in the pressure generated by the pneumatic wheel, the permanent deformation, the depth of the track, and, consequently, the resistance to movement of the pneumatic wheel increases. The track depth increases by 20% with an increase in tire pressure from 0.5 MPa to 1.0 MPa. With a constant load on the axle of the wheel, the resistance to movement of the pneumatic wheel increases on average by 25% when the air pressure in the tires rises from 0.5 MPa to 1.6 MPa. Optimization of running systems, the ratio of the load on the axle of the wheel, geometrical parameters and characteristics, as well as the air pressure in the tires is an urgent task.","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125659258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The use of combined convection-microwave processing line for drying fruits and vegetables","authors":"A. A. Korolev, A. Prokopenko","doi":"10.31992/0321-4443-2019-4-85-90","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-4-85-90","url":null,"abstract":"","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115112872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Schematization of operational loads on the carrier system of wheeled agricultural vehicles","authors":"V. I. Klepcov","doi":"10.31992/0321-4443-2019-3-51-57","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-3-51-57","url":null,"abstract":"","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130652084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The results of the study of the rigidity of tires of tractor wheels and its effect on tractor vibrations","authors":"D. I. Zolotarevskaya","doi":"10.31992/0321-4443-2019-3-35-44","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-3-35-44","url":null,"abstract":"","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124023273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Road tests of an electromechanical wheel tractor motion control systemctor","authors":"V. Poddubny, A. Nenaydenko, R. R. Baybasarov","doi":"10.31992/0321-4443-2019-1-47-52","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-1-47-52","url":null,"abstract":"","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123391870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vibration protection of the hydraulic suspension system of mobile vehicles using active regulation by a neural network controller","authors":"Z. Godzhaev, S. E. Sen'kevich, V. A. Kuz’min","doi":"10.31992/0321-4443-2019-4-43-49","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-4-43-49","url":null,"abstract":"","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"748 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120884738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"V-belt transmissions of agricultural machines","authors":"N. P. Balovnev, Y. I. Brovkina, L. Dmitrieva","doi":"10.31992/0321-4443-2021-3-31-36","DOIUrl":"https://doi.org/10.31992/0321-4443-2021-3-31-36","url":null,"abstract":"The article is devoted to the analysis of design features and operating conditions of V-belt trans-missions of agricultural machinery. When designing these gears, it is recommended to give prefer-ence to gears made according to an open circuit or with a tension roller located outside the belt con-tour, to avoid cross and semi-cross gears, as well as multi-pulley gears with crossing shaft axles. To make the wider use of more progressive types of belts. It was shown that the features of V-belt transmissions of agricultural machinery require clarification of the methods for calculating trans-missions with progressive types of V-belts and automatic belt tensioning methods. It was noted that special attention should be paid to transmissions with multi-profile belts, which calculation has not been sufficiently reflected in domestic regulatory documents. The advantages of such belts are es-pecially noticeable under variable and shock loading. Based on the analysis, the recommendations for clarifying the calculation of belt drives with multi-profile belts were given. Analytical dependencies are proposed for determining the value of the nominal power transmitted by one belt (stream) of a multi-profile belt, allowing automation of the calculation of V-belt transmissions of agricultural machinery. For gears with a tension or guide roller that add an extra (sometimes reverse) bend of the belt, it is proposed to determine the coeffi-cient taking into account different degrees of bending on the pulleys according to a graph built tak-ing into account the linear hypothesis of summation of damages. It is recommended to calculate gears with spring-loaded tensioning rollers and design tensioning devices for such transmissions using a special method that takes into account the belt tensioning method. At the same time, the required value of the pre-tension of the belt can be significantly re-duced, which will have a positive effect on its resource, without losing the traction capacity of the transmission itself. Expressions are given for finding the value of the pre-tension of belts, both for gears with tension due to the elasticity of the belt, and for gears with spring-loaded tension rollers. Conclusions and directions for further research are formulated.","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127788452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increase in rust resistance of farm vehicles at storage due to use of new protective lubricant","authors":"N. V. Stepanov, S. Shukhanov","doi":"10.31992/0321-4443-2019-4-80-84","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-4-80-84","url":null,"abstract":"","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130105179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental aspects of processing chernozem with high-speed tools","authors":"V. Zvolinsky","doi":"10.31992/0321-4443-2019-3-3-11","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-3-3-11","url":null,"abstract":"","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132190506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modern test benches for dynamic tests of tractor tires","authors":"E. A. Vlas'evnina, O. I. Osipov","doi":"10.31992/0321-4443-2019-6-28-35","DOIUrl":"https://doi.org/10.31992/0321-4443-2019-6-28-35","url":null,"abstract":"Äëÿ èñïûòàíèé òðàêòîðíûõ øèí è èõ èçíîñà èñïîëüçóþòñÿ ñïåöèàëüíûå ëàáîðàòîðíûå ñòåíäû ñ èìèòàöèåé ðåàëüíûõ óñëîâèé ýêñïëóàòàöèè øèí. Îíè îáåñïå÷èâàþò îïðåäåëåíèå òàêèõ õàðàêòåðèñòèê øèíû, êàê âîçìîæíîñòü ïðîäîëæèòåëüíîãî äâèæåíèÿ íà ìàêñèìàëüíîé ñêîðîñòè, âîñïðèÿòèå óñèëèé ïðè êðèâîëèíåéíîì äâèæåíèè, äèíàìè÷åñêèé ðàäèóñ, ñîïðîòèâëåíèå øèíû êà÷åíèþ, ñòåïåíü íàãðåâà øèí è ò.ä. Ïîäîáíûå ñòåíäû ïîçâîëÿþò îöåíèòü íàäåæíîñòü øèí è âûÿâèòü âîçìîæíîñòü óâåëè÷åíèÿ ñðîêà èõ ýêñïëóàòàöèè. Íàèáîëåå ðàñïðîñòðàíåííûå ñòåíäû âêëþ÷àþò â ñåáÿ íåïîäâèæíóþ ïëàòôîðìó, áåãîâîé áàðàáàí, ãèäðîöèëèíäðû, óñòðîéñòâà ïðèæèìà, ýëåêòðîïðèâîä áàðàáàíà, ìåõàíèçìû âðàùåíèÿ øèí, ïåðñîíàëüíûé êîìïüþòåð è ïóëüò óïðàâëåíèÿ. Îäíèì èç íåäîñòàòêîâ òàêèõ ñòåíäîâ ÿâëÿåòñÿ íàëè÷èå âûñîêèõ ïîòåðü íà ïðåîäîëåíèå óñèëèé â ìåõàíèçìàõ âðàùåíèÿ øèí. Ïîýòîìó àêòóàëüíûì ÿâëÿåòñÿ âîïðîñ ïîèñêà ðåøåíèÿ äëÿ ïîâûøåíèÿ ýíåðãîýôôåêòèâíîñòè è íàäåæíîñòè èñïûòàíèé òðàêòîðíûõ øèí.  ñòàòüå àíàëèçèðóþòñÿ ñòåíäû çàðóáåæíûõ è îòå÷åñòâåííûõ ïðîèçâîäèòåëåé äëÿ äèíàìè÷åñêèõ èñïûòàíèé øèí. Ðàññìàòðèâàþòñÿ èõ òåõíè÷åñêèå õàðàêòåðèñòèêè, ôóíêöèîíàëüíûå è ãàáàðèòíûå ïîêàçàòåëè. Çíà÷èòåëüíîå âíèìàíèå óäåëÿåòñÿ íåäîñòàòêàì êàæäîãî èç ñòåíäîâ. Ïðåäëîæåí ìîäåðíèçèðîâàííûé âàðèàíò ñòåíäà, â êîòîðîì ó÷òåíû è óñòðàíåíû íåäîñòàòêè àíàëîãîâ. Êîíñòðóêöèÿ ïîäîáíîãî ñòåíäà ïîçâîëÿåò îáåñïå÷èòü èñïûòàíèÿ øèí, èìèòèðóÿ èõ âçàèìîäåéñòâèÿ ñ íåðîâíîé ïîâåðõíîñòüþ äîðîãè, à òàêæå ñíèçèòü ïîòðåáëåíèå ýëåêòðîýíåðãèè è ïîâûñèòü äîñòîâåðíîñòü èñïûòàíèé øèí. Ïðåäëîæåíà êèíåìàòè÷åñêàÿ ñõåìà ñòåíäà è ôóíêöèîíàëüíàÿ ñõåìà ñèëîâîé ÷àñòè ýëåêòðîïðèâîäà èñïûòàòåëüíîãî ñòåíäà. Íà îñíîâå òåõíè÷åñêèõ äàííûõ ñòåíäîâ è èõ âîçìîæíîñòåé äàíà ñðàâíèòåëüíàÿ òàáëèöà, à òàêæå ñäåëàíû âûâîäû î öåëåñîîáðàçíîñòè ïðèìåíåíèÿ áîëåå ýíåðãîýôôåêòèâíûõ ïðèâîäîâ äëÿ ïîäîáíûõ ñòåíäîâ.","PeriodicalId":160902,"journal":{"name":"Traktory i sel'hozmashiny","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132198351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}