卷 79, 编号 5 (2012)
- 年: 2012
- 文章: 20
- URL: https://bakhtiniada.ru/0321-4443/issue/view/3805
Articles
Efficient proportion between the equipment manufactured in near and far abroad in conditions of technical reequipment of rural areas
摘要
Results of theoretical researches on the substantiation of efficient proportion between the equipment manufactured in near and far abroad for the technical reequipment of Nothern Kazakhstan economies are presented. It is established that this proportion depends on the grain yield and the price of grain.
Traktory i sel hozmashiny. 2012;79(5):3-5
3-5
Reduction of nitric oxides' content in the exhaust gases of diesel engine by means of methanol application with usage of double fuel supply system
摘要
Д-21А1 (2Ч 10.5/12.0) tractor diesel engine was researched for the improvement of ecological performance by methanol application with the use of double fuel supply system in Vyatka State Agricultural Academy. Possibility of improvement of ecological performance of a diesel engine, in particular the reduction of nitric oxides in exhaust gases, economy of diesel fuel and increase of effective results, is established.
Traktory i sel hozmashiny. 2012;79(5):5-8
5-8
Calibration of field sprayers and modern devices for its realization
摘要
A modern technique of field sprayers' calibration is presented. The basic characteristics of a modern electronic flowmeter for the control of flow rate through dispensers are given.
Traktory i sel hozmashiny. 2012;79(5):8-11
8-11
New generation of vehicles for agricultural purposes
摘要
One of the ways of improvement of agricultural transport performance, namely creation and introduction of a new generation of effective vehicles developed in consideration of the specificity of agricultural production and service conditions is considered.
Traktory i sel hozmashiny. 2012;79(5):12-14
12-14
A multifunctional soil cultivating resource-saving machine
摘要
A multifunctional soil cultivating machine acting on the soil predominantly by extension deformations is proposed. Results of its tests as well as diagrams of advanced machines and fields of its application are presented.
Traktory i sel hozmashiny. 2012;79(5):15-17
15-17
A soil and moisture saving method of primary tillage on the slopes
摘要
A promising trend of improvement of soil and moisture saving methods of the primary tillage on the slope soils is grounded. The diagram of a ridge-stubble coulisse is resulted and technological process of their formation and placement is described, allowing to fix the basis of erosion on all controlled plot of a slope.
Traktory i sel hozmashiny. 2012;79(5):17-18
17-18
Gear shift in the tractor gear box without break of power flow
摘要
A mathematical model of tractor unit acceleration at the gear shift by means of frictional clutches is developed. On its basis analytical dependences for the determination of work and time of slippage of an engaged frictional clutch for any degree of gears overlapping and acceleration time on the given gear are calculated.
Traktory i sel hozmashiny. 2012;79(5):19-23
19-23
Estimation of optimal area of sustained power engine operation using the effective power criterion
摘要
Maintenance of optimal values of loading level within wide limits on the criterion of effective power maximum permits to improve the level of engine power use and efficiency.
Traktory i sel hozmashiny. 2012;79(5):23-25
23-25
Evaluation of elastic shaft dumping ratio for the research of dynamic processes in transmission
摘要
A method of evaluation of elastic shafts dumping ratio is presented. It involves a procedure of preliminary calculation of dumping ratio according to the mass and geometric characteristics of the shaft and the damping coefficient of shaft material, as well as a procedure of experimental correction of previously calculated values. The introduced approach allows to find the dumping ratios of transmission elastic shafts with sufficiently high precision.
Traktory i sel hozmashiny. 2012;79(5):25-27
25-27
Calculation of driving power of rotary blade tool of a tiller
摘要
A method of calculation for the moment of soil resistance to the rotation of rotary blade tool depending on an angle of rotation and on the maximum drive power is developed on the basis of suggested mathematical model of interaction of tool with the soil. This method allows to simplify the experiments on determination of power characteristics of the tool and to reduce their amount considerably. Due to the community of basic points the offered technique can be basically transferred on other rotary tools.
Traktory i sel hozmashiny. 2012;79(5):27-32
27-32
A fractal model of soil structure
摘要
A fractal model of soil structure, namely particles consisting of uniform-sized balls, is considered. Parameters describing the concrete soil are determined.
Traktory i sel hozmashiny. 2012;79(5):32-
32-
Material and power costs of machine-tractor unit operation as the complex criterion of its quality estimation
摘要
Possibility to estimate the machine-tractor units' quality on the base of material and power costs taking into account the coefficient of efficiency of unit under execution of technological operations of agricultural production is grounded.
Traktory i sel hozmashiny. 2012;79(5):33-36
33-36
Movement of crawler band with elastomer wideners
摘要
Results of experimental study of mover movements of a snow-marsh buggy having a crawler equipped with elastomer widener are given. The technique is described and results of tensometric tests of widener's dangerous zones load during the buggy movement are given.
Traktory i sel hozmashiny. 2012;79(5):36-38
36-38
Dynamic loading of outboard shafts of mechanical stepless transformer with oscillatory motion of internal links in transmission
摘要
Dynamic loading of input and output shafts of a mechanical stepless controlled transformer with holonomic constraints is determined. Dynamic disturbances on the parts of transmission located before and after the transformer are estimated.
Traktory i sel hozmashiny. 2012;79(5):39-42
39-42
Improving the joints of agricultural machines' parts
摘要
Big dynamic loads resulting in relaxations of responsible joints act on the tools of agricultural machines. A new construction considerably rising the strength of joining blocks of agricultural machines' parts is developed.
Traktory i sel hozmashiny. 2012;79(5):42-44
42-44
A mathematical model of ultrasonic preparation of diesel fuel for the engine start in conditions of low temperatures
摘要
Ultrasonic method of diesel fuel treatment with the view of its low-temperature operation improvement is considered. It is established that viscosity of diesel fuel decreases with the increase of ultrasonic treatment duration and fuel temperature, what is proved with the efficiency of application of ultrasonic treatment in conditions of low temperatures.
Traktory i sel hozmashiny. 2012;79(5):44-46
44-46
General solution of the problem of shaft correcting optimization during the agricultural machines' repair
摘要
Technological process of shaft correcting is considered as an object of polyvalent optimization. It is offered to set the conditions of shaft processing by an elastic-plastic bending. In this case the specified precision indices of correcting quality are achieved with minimal number of details loadings and thereby the process of correcting is optimized.
Traktory i sel hozmashiny. 2012;79(5):46-48
46-48
Special equipment for potato production in small farms
摘要
The role of small farms in potato production is noted, including the potato production in Russia. Characteristics are given and features of construction of special equipment are considered. There are machines of rather small performance of some foreign companies, in particular planters, cultivators-ridgers, diggers, combines, sieve graders et al.
Traktory i sel hozmashiny. 2012;79(5):48-55
48-55
In memory of academician I.P. Ksenevich
Traktory i sel hozmashiny. 2012;79(5):55-
55-
Yu.F. Lachuga: scientist, pedagogue, public figure
Traktory i sel hozmashiny. 2012;79(5):56-
56-