Vol 83, No 2 (2016)
- Year: 2016
- Articles: 19
- URL: https://journals.rcsi.science/0321-4443/issue/view/3654
Articles
3-5
5-7
Substantiation of design parameters of extruder and determination of extrudate quality
Abstract
The article reviews the designs of extruders and screws. It describes the main known methods of determination of material quality. As a technical solution improving the design of extruder, a double-threaded screw that should be installed in the material forming zone is proposed.
Traktory i sel hozmashiny. 2016;83(2):7-10
7-10
String module cultivator for surface tillage
Abstract
A string modular cultivator has been developed. It provides surface tillage at the depth of 0,02-0,03 m. Such tillage is necessary before sowing small-seeded crops such as beet, rapeseed, onion, carrot, tomato and so on. The cultivator can be used in cultivation of fallow lands because it ensures soil moisture preservation and prevents bringing of moist soil to the surface.
Traktory i sel hozmashiny. 2016;83(2):10-12
10-12
13-14
14-15
Estimation of use efficiency of automatic transmission of «torque converter - coupling - gearbox» type
Abstract
The paper describes a mathematical model for wheeled vehicle with automatic transmission of «torque converter - coupling - gearbox» type. In order to compare this type of transmission and mechanical one with same number of gears and ratios, optimal characteristics of torque converter for considered vehicle are selected. The paper presents the results of simulation of wheeled vehicle moving for both variants of gearbox in conditions involving variable resistance and moving velocity assigned by driver. Efficiency of hydromechanical transmission use is estimated.
Traktory i sel hozmashiny. 2016;83(2):16-20
16-20
21-24
24-27
Experimental researches of a self-propelled potato harvester equipped with separation process control system
Abstract
The article describes the structure and operation principle of separation process control system for the КСК-4-1 self-propelled potato harvester. It presents the results of laboratory and field tests and farm ones, as well as the results of operational and technological evaluation of performance of the harvester with separation process control system and without it. As a result, it is found that installation of this system on potato harvester increases its productivity by 6-8%, improves the quality parameters of the process, reduces downtimes by decreasing the clogging and overload of working organs, betters the working conditions of operator.
Traktory i sel hozmashiny. 2016;83(2):28-30
28-30
Air flow distribution in excessive seeds dumping zone of a pneumatic sowing device of overpressure
Abstract
The article describes a computer model of air flow distribution in the seed chamber of pneumatic sowing device of overpressure. It presents the initial and boundary conditions of calculation of the model. Diagrams of distribution of air flow speed in excessive seeds dumping zone have been constructed. Influence of seeding plate protuberances’ form on the air flow distribution has been determined.
Traktory i sel hozmashiny. 2016;83(2):31-34
31-34
Substantiation of installation place for bridge preventing device in a grain bin with side outlet
Abstract
The article analyzes the results of experiment in finding of areas of bridging in a grain bin with side outlet; substantiates the place of installation of bridge preventing device; proposes a formula for calculation of maximum possible number of existing bridges. It also determines the heights of outlet whereby the impact on flow process is minimal or absent, depending on angle of bottom slope and dimensions of bridging section.
Traktory i sel hozmashiny. 2016;83(2):34-36
34-36
Substantiation of kinematic parameters of a roller transporting device when planting sugar beet mother plants
Abstract
The article presents the results of theoretical and experimental studies of rolls with spiral winding in the process of transportation of sugar beet mother plants to planting unit. The results of studies allow to substantiate the kinematic parameters of roller transporting device at the given rate of planting.
Traktory i sel hozmashiny. 2016;83(2):36-37
36-37
38-41
Influence of measurement errors on the results of grading during inspection of machine parts
Abstract
The features of occurrence of control errors of the first and second kinds during inspection of machine parts in maintenance service are considered. New approach to the assessment of influence of measurement errors on the results of grading during inspection of machine parts is proposed. On the basis of the proposed approach, the parametrization of grading during inspection of machine parts is determined. The analysis of the obtained results is performed.
Traktory i sel hozmashiny. 2016;83(2):41-43
41-43
Comparative evaluation of energy efficiency of ploughing units on the basis of tractors with diesel and gas-turbine engines
Abstract
The article presents the results of comparative evaluation of the efficiency of energy costs for technological process of ploughing units on the basis of the serial tractor (K-701), the gas-turbine engined one (K-701 Turbo) and the ПЛН-9-35 plough.
Traktory i sel hozmashiny. 2016;83(2):44-46
44-46
Motion control of a wheeled tractor with the use of satellite navigation systems
Abstract
The article presents a developed electromechanical motion control system for wheeled tractors using GPS and GLONASS satellite navigation systems, a transmission system of differential corrections of the satellite signal, the results of laboratory and field tests of the control system.
Traktory i sel hozmashiny. 2016;83(2):46-49
46-49
The 10th agroindustrial exhibition «AgroSeason - 2016»
Abstract
16 и 17 марта 2016 г. на территории Экспоцентра Воронежского государственного аграрного университета (ВГАУ) будет проходить юбилейная, десятая агропромышленная выставка «АГРОСЕЗОН - 2016. Современные техника и технологии в земледелии и животноводстве».
Traktory i sel hozmashiny. 2016;83(2):49-50
49-50
51-52