scholarly journals Development and Rationale of Two-Disk Operating Body of Agricultural Machine for Tillage

2021 ◽  
Vol 20 (5) ◽  
pp. 383-389
Author(s):  
A. S. Ivanov ◽  
M. S. Puzyrev ◽  
E. M. Chikishev
Keyword(s):  
Energy Consumption ◽  
Energy Intensity ◽  
Operating Mode ◽  
Angular Speed ◽  
Technological Parameters ◽  
Agricultural Machine ◽  
Ac Motors ◽  
Translational Speed ◽  
Agricultural Machines

One of the main problems in the design of agricultural machines, including tillage machines, is to ensure the optimal energy intensity of various technological operations. The design, kinematic and technological parameters of rotary tillage machines have a significant impact on the indicators of the energy intensity of the process and the quality of tillage. These parameters include the diameter of the operating body of the agricultural machine, the angular speed and rotational speed of the disks, the number of cutting elements, the translational speed of the operating body, the height of the ridge formed during soil cultivation, the thickness of the cut chips. An important agrotechnical parameter of a rotary tillage machine is the ridging of the furrow bottom. The height of the ridges formed should not be less than 20 % of the depth of the cultivated soil. Currently, in order to ensure the required height of the ridges in the designs of rotary machines, there are a number of restrictions that determine the operating mode and parameters of the units. The degree of influence of the parameters of the developed operating body and the energy consumption on the quality of tillage has been assessed in the process of the research. The experiments have been carried out on an installation that included an operating body, a power unit, control and instrumentation equipment. As the power section, AC motors with a phase rotor were used, the power of which was 0.75 and 1.50 kW, and the speed of rotation was 920, 1500 and 3000 rpm. The parameters have been set that allow to reduce the energy consumption for tillage by 11–17 %, compared to existing machines, and ensure the alignment of the furrow bottom by up to 80 %.

scholarly journals Analysis of the operation of active needle disks on erosive soils

2021 ◽  
Vol 937 (3) ◽  
pp. 032052
Author(s):  
G Kokieva ◽  
S Adamov ◽  
S Yampilov ◽  
A Pekhutov ◽  
Yu Shaposhnikov
Keyword(s):  
Energy Intensity ◽  
Arable Land ◽  
Operating Mode ◽  
Agricultural Machinery ◽  
Agricultural Technologies ◽  
Long Time ◽  
The Stability ◽  
Working Bodies ◽  
Agricultural Machines

Abstract The development of agricultural technologies, the mechanization of the cultivation of ordinary crops for a long time has gone differently in different ways. The working bodies of agricultural machines process various materials, the number of which is increasing. In addition, the way the same material is processed often changes when trying to improve agricultural technologies. All this forces us to create new mechanisms of agriculture that were previously known. The use of replaceable gear bodies on flat cutting cultivators helps to reduce the energy intensity the process and improve the quality of non-falling soil. To protect against it, various agricultural techniques are recommended: plowing along the entire slope, deepening the arable layer, the formation of irregularities on the surface of arable land in the form of holes, intermittent furrows. The article describes the mechanized protection of the soil of the technological process and technical means for growing crops on erosive lands on the slope. Methodology for improving agricultural machinery for working on the slope of erosive dangerous lands. Ways to increase the stability of the movement of agricultural machines on slopes to improve the quality of technological operations are justified. The operating mode of the active disk needle is described.

scholarly journals Determination of main parameters of ISOBUS system based agricultural machinery management

2021 ◽  
Vol 46 (3) ◽  
pp. 40-48
Author(s):  
Magó László ◽  
Kosta Gligorević ◽  
Milan Dražić ◽  
Mićo Oljača
Keyword(s):  
Communication Protocol ◽  
Plant Protection ◽  
Electronic Devices ◽  
Technological Parameters ◽  
Industry Standard ◽  
System Of Parameters ◽  
Agricultural Machines

ISO organization (https://www.iso.org) in early 90s defined an industry standard for the communication protocol among electronic devices of different manufacturers of agricultural machines. After that, all of the market actors recognised that this technology would be very important for agricultural electronics. The appearance of ISOBUS products in the market was in the mid-2000s. ISOBUS description could be found in ISO-11783 (https://www.iso.org). Through the standards and the related technical background, the production processes and the operations could be followed and monitored by the extensive Data Management. Farmers' and users legitimate needs and developing goal is to elaborate a decision support systems that follow-up the utilisation of the machines and ensure the quality of operations. For this purpose, it is essential to determine which technical, economical, technological parameters detection, measurement, transmission, processing, and evaluation becomes necessary. In our work, we reviewed which mechanical characteristic, settings are monitored within the ISOBUS system by the major machine manufacturers. We developed the system of parameters and derived features that provide effective farm-, and land-management in case of attached equipment for spreading of input materials, plant protection and tillage implements.

scholarly journals The quality of the microclimate in educational buildings subjected to thermal modernization

2019 ◽  
Vol 100 ◽  
pp. 00048
Author(s):  
Anna Lis ◽  
Nadiia Spodyniuk
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Energy Intensity ◽  
Sick Building Syndrome ◽  
Total Energy Consumption ◽  
Educational Buildings ◽  
Before And After ◽  
Sick Building ◽  
Microclimate Conditions

Realization and exploitation of buildings involves in European Union about 40% of total energy consumption [1]. One of the elements of rationalization of energy consumption in buildings are the undertakings related with thermal modernization of buildings. The actions related with reducing the energy intensity of buildings are not always correlated with improvement of microclimate conditions in the rooms. Errors in the implementation of the energy efficiency program led to the phenomenon of sick building syndrome. The paper presents the results of the research conducted in a few educational buildings before and after thermal modernization. The research includes energy consumption for the heating of building and selected parameters of the interior microclimate. This analysis was carried out to evaluate the influence of energy saving activities on microclimate interior conditions. It was found that in many cases commonly used gravitational ventilation is not able to ensure the proper conditions of the interior microclimate, and the concentrations of carbon dioxide recorded in the tested rooms exceeded the applicable standards.

scholarly journals Research on the relative productivity of a drum mill type SAG 8.5×5.3

2020 ◽  
Vol 168 ◽  
pp. 00012
Author(s):  
Ivan Minin
Keyword(s):  
Energy Consumption ◽  
Control Parameters ◽  
Operational Mode ◽  
Operational Parameters ◽  
Technological Parameters ◽  
Expected Performance ◽  
Relative Productivity ◽  
Required Quality

The determination of the optimal operational mode of drum mills can be assessed by different criteria. The most important of them can be formulated as follows: “To be specified and established the values of the mill operational parameters regarding to which it is possible to be provided the user’s expected performance at the required quality of the final product and the same to be achieved at minimal energy consumption”. For the fulfillment of this condition, there has to be determined the laws of productivity variation, the final product quality and the energy consumption in function of the adequately chosen representative control parameters of the mill. There are obtained mathematical models, describing the most important technological parameters of the machine and are made conclusions about the factors influencing on them.

scholarly journals Comparative study of frequency converters of three-phase electric motors in automatic control of technological parameter

2021 ◽  
Vol 2 (3) ◽  
pp. 48-56
Author(s):  
Margarita M. Blagoveshchenskaya ◽  
Mikhail V. Veselov
Keyword(s):  
Pid Controller ◽  
Technological Parameter ◽  
Test Bench ◽  
Frequency Converter ◽  
Electric Motors ◽  
Technological Parameters ◽  
Frequency Converters ◽  
Ac Motors ◽  
Three Phase

Frequency converters of asynchronous three-phase AC motors are widely used in industry, including food production. A thorough understanding of the technical capabilities of frequency converters contributes to their efficient use. This article discusses a technical comparison of two frequency converters of three-phase electric motors of the Russian company "OWEN" and the Danish company "DANFOSS" according to the criterion of the quality of regulation of the technological parameter. For comparison, a test bench was created, in which the devices were tested in turn, under the same conditions. During the preparation and implementation of testing, it turned out that the hardware capabilities of frequency converters for their use in regulating technological parameters are the same, and the parametric capabilities are different. The frequency converter of the "OWEN" company is equipped with a PI controller, and the frequency converter from "DANFOSS" is equipped with a PID controller. As the results of testing the devices show, despite 

scholarly journals GEOMETRIC AND KINEMATIC CHARACTERISTICS OF FEEDER AND THROWER OF MILLING AND ROTARY SNOWBLOWER

2018 ◽  
Vol 15 (5) ◽  
pp. 638-648
Author(s):  
D. S. Aleshkov
Keyword(s):  
Rotor Blade ◽  
Road Network ◽  
Correct Choice ◽  
Angular Speed ◽  
Design Stage ◽  
Kinematic Parameters ◽  
Technological Parameters ◽  
Winter Conditions ◽  
Kinematic Characteristics ◽  
Translational Speed

Introduction.Questions of the maintenance of territories and road network in winter conditions are directly connected with timely and qualitative clearing of roads and territories of snow. Designing and creation effective milling and rotary snowblowers, which work includes some technological operations on snow cleaning, consist in a correct choice of geometrical and kinematic parameters of basic elements. At a design stage the technique, allowing to carry out a choice of the basic technological parameters of such vehicles is necessary and further it would allow to make optimization directly. The purpose of this paper is representation of dependences of the basic technological parameters of the milling and rotary snowblowers and sequence of their choosing.Materials and methods. The paper presents analytical equations connecting geometrical and kinematic characteristics of the feeder, the thrower of milling and rotary snowblower from conditions of maintenance of identical productivity. Moreover, the analysis of the received equations and dependences by choice milling and rotary snowblower parameters is presented. Sequences of the basic geometrical and kinematic parameters’ influence on each other are revealed.Results.As a result, the comparative estimation of the offered and existing equations is made. The character of dependence of angular speed of the throwing device rotation on translational speed of the milling and rotary snowblower and width of the rotor blade is established. On the basis of the received dependences the algorithm of the basic technological parameters’ choice on the milling and rotary snowblowers, proceeding from the minimization condition of the initial parameters’ task are considered.Discussion and conclusion. The presented dependences allow to spend effectively outline designing of new constructions of milling and rotary snowblowers and to carry out optimisation of existing models of milling and rotary snowblowers.

scholarly journals Physical, technological and technical characteristics of the blasted rock mass in terms of energy intensity of the processes

2021 ◽  
Vol 303 ◽  
pp. 01034
Author(s):  
Ivan Panachev ◽  
Ilya Kuznetsov ◽  
Anastasia Shirokolobova
Keyword(s):  
Rock Mass ◽  
Energy Consumption ◽  
Specific Energy ◽  
Energy Intensity ◽  
Coal Mines ◽  
Specific Energy Consumption ◽  
Rock Blasting ◽  
Mining Equipment ◽  
The Relationship

Kuzbass coal mines are equipped with powerful mining equipment; it is CME excavator type with bucket capacity from 4.6 m3 to 20 m3. To evaluate the efficiency of the excavation processes, a universal criterion was used – the value of specific energy consumption (kW h/m3). The dependences of excavator efficiency on the quality of rock blasting, estimated by the diameter of the average piece in the shot pile, are obtained. The relationship between the efficiency of excavators CME - 4.6, CME – 8, CME – 12.5, CME – 20, their energy intensity and the diameter of an average piece in the shot pile is determined.

scholarly journals Optimization of the terminal operating mode during the formation of a container block train

2021 ◽  
Vol 264 ◽  
pp. 05025
Author(s):  
Marufdjan Rasulov ◽  
Masud Masharipov ◽  
Azizbek Ismatullaev
Keyword(s):  
Container Terminal ◽  
Operating Mode ◽  
Container Terminals ◽  
Gantry Crane ◽  
Traffic Flows ◽  
Container Shipping ◽  
Technological Parameters ◽  
Transport Services ◽  
Loading And Unloading

Currently, container shipping plays an important role in international logistics. Terminals handle containers between different modes of transport and are a key element in supply chains. The quality of transport services, in general, depends on the technical and technological parameters of container terminals. At the same time, the task is to optimize the operating mode of the container terminal to reduce logistics costs. This article presents the results of a study of the traffic flows of terminals adjacent to the Tashkent regional railway junction stations, obtained based on timing observations on the unloading of containers arriving at the terminal by road for shipment by container trains. Based on these observations, the regularities of the distribution of the probabilities of the arrival of containers at the terminal and the time of servicing vehicles by a gantry crane were established. With the help of the established patterns, the main indicators were selected that characterize the quality of the container terminal functioning. A mathematical model has been developed and an algorithm for finding the optimal operating mode of a container terminal when forming a container block train. As the results of calculations have shown, the volume of logistics costs for the operation of a container terminal depends on the type and quantity of used handling equipment and the number of supply of fitting wagons to loading and unloading routes.

scholarly journals Algorithm of the dynamic functional of the adaptive torque distributor as applied to agricultural machines

2021 ◽  
Vol 937 (3) ◽  
pp. 032045
Author(s):  
B Kalmykov
Keyword(s):  
Research Topic ◽  
Automatic Regulation ◽  
Operating Parameters ◽  
Agricultural Machine ◽  
Working Medium ◽  
Working Bodies ◽  
Agricultural Machines

Abstract The article deals with the problem of improving the drive of the driving wheels and working bodies of agricultural machines. The analysis of works on the research topic showed that this problem is solved by giving the very executive mechanisms of the agricultural machine the ability to adjust the characteristics in the direction that improves certain indicators of the quality of functioning, by the purpose of which it is possible to judge the efficiency of the operation of such a machine. The flexibility of the structure can only be ensured by the presence of additional degrees of mobility. Therefore, it is proposed to use differential mechanisms of varying complexity in the drive, which will provide continuous automatic regulation of its own operating parameters depending on changes in the resistance of the working medium to the executive bodies of the machine.

scholarly journals IMPROVEMENT OF WORKING UNITS FOR STRIP-TILL TECHNOLOGY

2020 ◽  
Vol 15 (3) ◽  
pp. 77-83
Author(s):  
Ivan Gureev
Keyword(s):  
Energy Consumption ◽  
Energy Intensity ◽  
Experiment Planning ◽  
Depth Of Processing ◽  
Two Factors ◽  
Strip Tillage ◽  
Relationship Of ◽  
The Relationship ◽  
Milling Tools

When cultivating agricultural crops in the system of soil-protective ecologically safe farming, the Strip-Till technology is effective, which allows you to cultivate the soil in strips in the zone of rows and thereby limit the area of the field subject to loosening. The required indicators for loosening the strips in one pass are achieved by the milling tools. Their disadvantage is increased energy consumption. The purpose of the research is to improve the working units of soil-cultivating cutters for strip tillage in the direction of reducing energy consumption. An innovative milling cutter with different-sized knives has been created, which allows, while maintaining a given quality of soil crumbling, reducing the intensity of excessive grinding of the lower part of the milled layer to small erosive hazardous particles. On soil with a moisture content of 21% and a hardness of 1.6 MPa, comparative tests of the innovative and basic cutters were carried out. In the tests, the factors were changed - the depth of processing was in the range of 8-12 cm and the forward speed was from 0.61 to 1.09 m/s. The test results were presented in the form of mathematical models of the relationship of variable factors with the energy intensity of soil milling with innovative and basic structures. In accordance with the method of optimal planning of a multifactorial experiment, a central orthogonal compositional plan was used. An experiment-planning matrix was drawn up for each of the tested structures. With two factors, it contains a core for 2 × 2 = 4 experiments, four star points and one central experiment. By comparing the models, an average reduction of 15.8% in the energy intensity of strip milling of the soil with the use of innovations with the same quality of soil crumbling was established. This allows us to recommend the innovation for use as part of a complex of soil cultivation and seeding machines for cultivation of crops using Strip-Till technology

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