STUDY OF ROTATION KINEMATICS OF MULTI-LINK TRACTOR AND TRANSPORTATION UNITS WITH DEVICES CORRECTING THE WIDTH OF THE TRANSPORTATION CORRIDOR

2021 ◽  
Vol 1 (142) ◽  
pp. 65-71
Author(s):  
Aleksey Kushnarev ◽  
◽  
Sergey Schitov ◽  
Evgeniy Kuznetsov

The efficiency of the tractor-transport unit is largely due to its mobility, which in turn depends on many interrelated factors, such as handling, stability of movement and agility. One of the most important factors is the turnability, which ensures the ability of the tractor-transport unit to perform curved movement efficiently and safely. (Research purpose) The research purpose is in increasing the efficiency of the tractor-transport unit by using multi-link tractor trains. (Materials and methods) The main deterrent to the use of multi-link tractor trains in the Russian Federation is the increase in the overall width of the turn lane. The article presents a device that allows you to adjust the turning radius of the second trailer in order to optimize the width of the transport corridor. By changing the point of connection of the links in the turn, the movement is stabilized and the width of the transport corridor of the second link (trailer) is adjusted when moving. The article presents parameters of maneuverability of the tractor-transport train. (Results and discussion) The article presents the results of theoretical and experimental studies of the influence of the design and technological parameters of the proposed device on the maneuverability parameters of multi-link tractor-transport units. (Conclusions) The use of a towing-distributing device allows optimizing the width of the transport corridor of a multi-link tractor-transport unit by changing the turning radius of the second trailer.

2021 ◽  
Vol 1 (142) ◽  
pp. 65-71
Author(s):  
Aleksey N. Kushnarev ◽  
◽  
Evgeniy E. Kuznetsov

The efficiency of the tractor-transport unit is largely due to its mobility, which in turn depends on many interrelated factors, such as handling, stability of movement and agility. One of the most important factors is the turnability, which ensures the ability of the tractor-transport unit to perform curved movement efficiently and safely. (Research purpose) The research purpose is in increasing the efficiency of the tractor-transport unit by using multi-link tractor trains. (Materials and methods) The main deterrent to the use of multi-link tractor trains in the Russian Federation is the increase in the overall width of the turn lane. The article presents a device that allows you to adjust the turning radius of the second trailer in order to optimize the width of the transport corridor. By changing the point of connection of the links in the turn, the movement is stabilized and the width of the transport corridor of the second link (trailer) is adjusted when moving. The article presents parameters of maneuverability of the tractor-transport train. (Results and discussion) The article presents the results of theoretical and experimental studies of the influence of the design and technological parameters of the proposed device on the maneuverability parameters of multi-link tractor-transport units. (Conclusions) The use of a towing-distributing device allows optimizing the width of the transport corridor of a multi-link tractor-transport unit by changing the turning radius of the second trailer.


Author(s):  
Sergey Malyukov ◽  
A. Knyazev ◽  
Aleksey Aksenov

Annual harvesting of a large number of forest seeds allows for reforestation on the territory of the Russian Federation. Moreover, more than 70% falls on the seeds of coniferous trees. In order to increase their sowing quality and reduce losses, the seeds are dehumidified, cleaned, sorted by density and size, stratification, as well as other technological operations. The use of refined seeds during reforestation allows increasing the productivity of sowing units, improving the quality of seed placement, reducing the volume of seed bins, which leads to a decrease in the metal consumption of sewing machines as a whole. For experimental studies, special sieves were made: plastic with chamfered, plastic with standard holes and plastic with rounded edges. The dependences of the completeness of separation of the procode fraction ε were determined for various combinations of the angle of inclination α and the rotation frequency of the working body ω for various seed thicknesses. The angle of inclination of the working body α was changed from 4 ° to 12 °, in increments of 2 °, rotation frequency ω from 400 min--to 1200 min-¹, in increments of 200 min-¹. The size gap was set taking into account the dimensional characteristics of existing sieves with rectangular holes and was 0.2 mm. Studies were conducted on the seeds of common pine.


2021 ◽  
Vol 3 (45) ◽  
pp. 20-20
Author(s):  
Alexander Saakian ◽  
◽  

Improving the efficiency of using tractor-transport units (tractor trains) in the central agricultural zone of the Amur Region is an economically important issue, especially relevant for small peasant farms. This is due to the fact that in such farms the area of fields occupied for the cultivation of agricultural crops is relatively small, while most of them belong to the category of slope lands. It was also found that during the periods of sowing and harvesting operations, traffic on agricultural roads is hampered by safety conditions due to regional climatic features, which include a large amount of precipitation. In this connection, the use of vehicles for the transportation of seed, fertilizers, plant protection products and other goods, and the export of crops in these conditions seems to be a rather complicated operation. It should be borne in mind that in many, the main energy means are wheeled tractors of class 1.4, and not cars of various cross-country ability, therefore, in order to increase the efficiency of the use of available mechanization means, it is necessary to use them for the transport of goods, and as part of multi-link tractor trains in particular. At the same time, when driving on on-farm field roads with a limited width, the turn of multi-link trains is difficult due to the failure of the second and subsequent aggregated trailers to comply with the safe transport corridor, since the second trailer, when turning, shifts to the center of the road and creates an emergency situation for oncoming traffic. In order to eliminate the identified shortcomings and create safe conditions for traffic, an automatic device was developed that allows you to shift the second trailer when turning from the center to the side of the passing traffic, thereby regulating the transport corridor and not creating emergency situations for oncoming traffic. The paper presents the results of experimental studies on the use of a transport unit consisting of a class 1.4 tractor and two 2PTS-4 trailers in the production modes of multi-link tractor trains. Keywords: TRACTOR, TURN, TURNING RADIUS, TRAILER, OFFSET, WIDTH OF THE TRANSPORT CORRIDOR, EFFICIENCY


2021 ◽  
Vol 227 (4) ◽  
pp. 45-49
Author(s):  
SERGEJ M. KOLOTUSHKIN ◽  

Abstract. The article discusses the issues of assessing the effectiveness of tactical and technical solutions for prevention of prohibited items delivery to the territory of institutions of the penal system of the Russian Federation using unmanned aerial vehicles. The cost of completing the task was taken as the indicator of efficiency. The task was formulated as guaranteed prevention of flights of unmanned aerial vehicles over the territories of pre-trial detention centers, prisons, colonies and other facilities. In the course of theoretical and experimental studies, conceptual approaches to solving the highlighted problem were substantiated, rational characteristics and operating modes of complexes for countering flights of unmanned aerial vehicles over the territories of institutions of the penal system of the Russian Federation were defined. Key words: penal system, unmanned aerial vehicles, prohibited items, effectiveness of countermeasures.


2021 ◽  
pp. 116-125
Author(s):  
А.В. Яшин ◽  
Ю.В. Полывяный ◽  
П.Н. Хорев

Главной задачей сельского хозяйства страны и молочного животноводства, в частности, является дальнейшее увеличение производства молочной продукции, необходимой для населения, на основе снижения ее себестоимости и создание общедоступных решений по механизации обработки молочной продукции с минимизированными трудозатратами. В государственной программе развития сельского хозяйства в Российской Федерации на 2013-2020 гг. одним из приоритетных направлений является развитие малых форм хозяйствования – крестьянских (фермерских) и личных подсобных хозяйств. В нашей стране уже функционируют свыше 340 тыс. крестьянских (фермерских) хозяйств, причем по ситуации на 2016 год К(Ф)Х и ЛПХ произвели порядка 1,5 млн. тонн молока, с процентом товарности в 69 %, на их долю приходится более 1,1 млн голов коров. С введением социально экономических мер в августе 2014 года, позволивших освободить от ввозимой продукции до 20 % российского рынка молочной продукции, образовавшуюся нишу начали заполнять отечественные производители сыров и сливочного масла. The main objective of the country's agriculture and dairy production, in particular, is to further increase the production of dairy products necessary for the population, based on reducing its cost, and to create generally available solutions for mechanizing the processing of dairy products with minimized labor costs. In the state programme for the development of agriculture in the Russian Federation for 2013-2020, one of the priority areas is the development of small forms of farming - peasant (farm) enterprises and personal subsidiary farms (PSF). There are already more than 340,000 peasant (farm) enterprises (P(F)E) in our country. In 2016, P(F)E and PSF produced about 1.5 million tons of milk, with a percentage of 69%, they account for more than 1.1 million head of cows. In our country, more than 340 thousand peasant (farm) farms are already functioning, and according to the situation in 2016, P(F)E and private household plots produced about 1.5 million tons of milk, with a marketability percentage of 69%. They account for more than 1.1 million cows. With the introduction of economic and social measures in August 2014, which made it possible to free up to 20% of the Russian dairy market from imported products, domestic producers of cheeses and butter began to fill the gap.


2019 ◽  
Vol 22 (6) ◽  
pp. 103-110
Author(s):  
V. A. Minko ◽  
N. S. Kobelev ◽  
V. M. Kretova ◽  
V. N. Kobelev ◽  
V. Yu. Amelin ◽  
...  

The purpose of the study of this work: to provide a scientific justification for the energy-saving device to maintain the normalized parameters of the recirculated air in special “clean” rooms, to derive formulas for calculating the adsorption material during the operation of the installation. The novelty of the constructive solution is protected and confirmed by patents of the Russian Federation for the invention. Methods. The volume of adsorbent determined by this method is placed in a tank with a recirculation loop, which includes: a cleaning unit nozzle, the inner surface of which is spring-loaded with a grid placed on the side of a moving air flow and a grid around the entire outlet section of the expanding nozzle. Spring-loaded mesh, placed on the side of a moving air flow, is made according to the profile of the velocity profile of the moving air flow, which is caused by the manifold speed impact on the adsorbent grains, horizontally arranged layers in order to level the absorbing capacity of silica gel KSM-5 throughout the drying device and use in the system recirculation of the air supplied by the fan leads to a probable entry of the vaporous mass of oil into the stream being cleaned, and the analysis of scientific and technical oh showed no literature data on the nature of such contaminants granular filter material, resulting in the need to study the penetration of the oil by volume adsorbent per cycle electrical testing of electronic devices in a heat chamber. Results. Based on the analysis of well-known foreign and domestic theoretical and experimental studies, there was no development related to vibration effects on the efficiency of adsorption drying of recirculated air for electrical thermal testing of electronic products. An adsorption unit has been developed with a horizontal arrangement of an adsorbing substance for treating air under conditions of vibration effects. Conclusion The installation developed by the authors passed laboratory and industrial tests at the Mayak plant of Kursk and was recommended for implementation as a resource-saving constructive solution protected by patents of the Russian Federation for invention. Keywords: special premises electrical testing of electronic products, recirculation circuit in the chamber for temperature testing - heat chamber, adsorption drying, transparent body of the drying device, oil contamination.


2021 ◽  
Vol 1 (142) ◽  
pp. 83-88
Author(s):  
Aleksandr Slepenkov ◽  
◽  
Sergey Kulinchenko ◽  
Sergey Shchitov ◽  
Evgeniy Kuznetsov

Improving the quality of pre-sowing tillage is a priority direction. Harrowing with the use of heavy disc harrows is one of the operations of pre-sowing tillage. An important task when using heavy disc harrows is to ensure sufficient load on the working body. (Research purpose) The research purpose is in increasing the efficiency of the harrowing process by adjusting the coupling weight in the tractor-harrow link using special devices. (Materials and methods) It is important to match the necessary condition of balance between the load on the working body and the traction qualities of the tractor with a low load-bearing capacity of the soil. The article describes a regulator of the coupling weight of the harrowing unit, for which was applied a patent. The article presents the general types of connection of the device with the disk harrow frame. (Results and discussion) The proposed device allows you to redistribute the weight of the unit, thereby automatically changing the load on the working body. Authors performed experimental studies on the influence of the main design parameters of the devices on the operation of the machine and tractor unit. (Conclusions) The proposed device allows, by expanding the design and technological parameters, to regulate the depth of processing, traction characteristics and speed of the harrowing unit.


2021 ◽  
Vol 2 (143) ◽  
pp. 162-173
Author(s):  
Dmitriy Yu. Shcherbinin ◽  

The origin of space means of studying the Earth's surface in the 50- 70-s of the twentieth century is inextricably linked with the main stages of the development of space technology. The improvement of methods and technical means for the study of the Earth and near-Earth space took place in the conditions of acute political confrontation between the USSR and the United States. (Research purpose) The research purpose is in identifying the key points that influenced the formation of the “Vostok” satellite program at the design stage from 1957 to 1960, as well as assessing the contribution of engineering and design solutions to the development of the space industry of the Soviet Union. (Materials and methods) The research is based on the materials of the State Archive of the Russian Federation, the Russian State Archive of Scientific and Technical Documentation, the Archive of the President of the Russian Federation, the Russian State Archive of Economics, the Archive of the S. P. Korolev Rocket and Space Corporation “Energiya”, the Archive of the Yuri Gagarin Cosmonaut Training Center, as well as publications of historians, memoirs of witnesses and participants of events, and the results of previous research on this topic. (Results and discussion) The article presents the history of the creation of the program of the Soviet spacecraft- satellites of the “Vostok” series. The greatest difficulty of the project was the development of scientific equipment for scientific research and the transmission of the received data from the satellite to the Earth. The terms of reference for conducting research and developing a control system that ensures the launch of the satellite into orbit were developed; the terms of reference and work plans providing for the research and development of systems and means for getting the results of scientific observations from orbit. (Conclusions) The first flight of the satellite spacecraft showed the correctness of the main theoretical provisions and engineering and design decisions taken when creating an orientable spacecraft.


2021 ◽  
Vol 108 ◽  
pp. 04001
Author(s):  
Olga Vyacheslavovna Yevstigneyeva

Pre-requisites of the research are the establishment of cassation courts of general jurisdiction in Russia, as well as no clear procedure in the Russian Federation Criminal Procedure Code for returning criminal cases to the prosecutor by the cassation court upon the grounds causing the impaired position of the convict (or acquitted person). The research purpose is to formulate requirements based on the principle of justice to the legal institute of returning criminal cases to the prosecutor by the cassation court for circumstances showing the need to impair the position of the convict (or acquitted person). The Methods are abstraction, analysis and synthesis, induction and deduction, modeling, ascending from abstract to concrete. The article substantiates that the grounds to return a criminal case to the prosecutor provided for in the Russian Federation Criminal Procedure Code causing remission of a sentence under a cassation procedure represent a type of material breaches of criminal procedure law that affect the outcome of the case. When such circumstances cause an impaired position of the convict (or acquitted person), they must comply with the requirements of justice.


2013 ◽  
Vol 18 (6) ◽  
pp. 42-48
Author(s):  
N. M Gyulazyan ◽  
O. F Belaya ◽  
V. A Malov ◽  
S. G Pak

To date, C. difficile is considered as an etiological factor in pseudomembranous colitis and antibiotic-associated diarrhea as well as the main cause of nosocomial diarrhea spread mainly in economically developed countries. The complexity of laboratory and experimental studies of infection is what the microbe cannot be genetically manipulated. At the same time, the most of hospital and municipal laboratories have no the possibility to carry out research on detection C. difficile toxins, that limits the resource of real estimation of the spread of the disease in the Russian Federation.


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