卷 81, 编号 1 (2014)
- 年: 2014
- 文章: 19
- URL: https://journals.rcsi.science/0321-4443/issue/view/3630
Articles
Change in strategic group membership of global agricultural engineering industry and in branch positions of its members
摘要
Changes occurring among the main competitors of global agricultural engineering industry in 2008-2012 were described. Particular attention was given to rising of competitiveness of engineering workers from China and India.
Traktory i sel hozmashiny. 2014;81(1):3-7
3-7
Mathematical modeling of oscillations of a wheel tractor equipped with shock absorbers of front suspension
摘要
Vertical oscillations of front and back axles of a wheel tractor that has front axle suspension equipped with elastic springs and shock absorbers were considered. The mathematical model and calculation method for axles’ oscillations were proposed. The influence of front axles’ vertical oscillations on soil compaction was investigated.
Traktory i sel hozmashiny. 2014;81(1):8-11
8-11
Influence of stochastic external loading conditions on the performance of machine and tractor unit
摘要
Results of performance investigation for a machine and tractor unit with tractors equipped with engine of constant power and with common diesel engine were presented.
Traktory i sel hozmashiny. 2014;81(1):11-12
11-12
Results of experimental researches of power circulation in transmission of a timber tractor with 6К6 axle configuration
摘要
Results of investigation of parasitic losses in the transmission of wheel timber tractor ШЛК-6-04 are given. It is determined that parasitic losses fundamentally depend on translational velocity of tractor and can reach 50-60% from nominal engine power. Load increase on tractor hook does not have such influence on parasitic losses as translational velocity.
Traktory i sel hozmashiny. 2014;81(1):13-15
13-15
Modeling of interaction between a high-elastic tire and a road hump
摘要
Results of the theoretical and experimental researches assessing smoothing ability of extra-low pressure tires, as well mathematical dependencies for modelling of the wheel axle point trajectory when moving over road humps are given.
Traktory i sel hozmashiny. 2014;81(1):16-18
16-18
Slipping process research of drive wheels of the МТЗ-100 tractor in breakaway and acceleration modes
摘要
Results of the angular velocity and angular acceleration measuring for a drive wheel of tractor МТЗ-100 when it rolls away after interrupted breakaway are presented. Tests have been carried out in the stubble field using four gearings of fifth range with a hook load of 10 kN.
Traktory i sel hozmashiny. 2014;81(1):18-20
18-20
Applicability of different models of wheel tractor dynamic system for the calculation assessment of its vibration load
摘要
Data concerning vertical vibration levels on an operator’s seat and a wheel suspension deflection calculated using three calculation models of a tractor vibratory system, namely chain three-mass, plain and spatial twelve-mass ones, in the mode of moving on the reference track of random profile are given. Application inadmissibility of the chain model because of inadequacy of vibration level to operational one and possibility of restricted using of the plain model are shown. The spatial model ensures the best convergence to the measured data.
Traktory i sel hozmashiny. 2014;81(1):20-25
20-25
Determination of soil volume required for high-quality embedding of seed onion bulbs into a furrow
摘要
The theoretical and experimental substantiation of soil volume required for high-quality embedding of seed onion bulbs into a furrow taking into account geometric sizes of bulbs and a furrow is given. Acceptable parameters of disc embedding working organ have been found by the experimental way.
Traktory i sel hozmashiny. 2014;81(1):25-27
25-27
Backward-and-forward extrusion application for the improvement of cold forging of tractor planetary gear transmission shaft
摘要
Existing manufacturing technology for heavy-duty part “tractor planetary gear transmission shaft” have been analyzed, the new resource-saving method is proposed.
Traktory i sel hozmashiny. 2014;81(1):27-30
27-30
Functional tests of a heavy-duty disk harrow equipped with ski device intended for plants knocking down and preliminary deformation
摘要
The new method and a device for soil preparation to crops growing were developed: before chopping plant stems are knocked down on the field surface at an angle to motion trajectory of a working organ; a preliminary fragmentation is effected by a disc tillage tool using soil surface as a prop.
Traktory i sel hozmashiny. 2014;81(1):30-33
30-33
Indices of electrical equipment operational safety for vehicles exploited in agriculture
摘要
Operational safety of vehicle electrical equipment have been analyzed. Recommendations for operators are given.
Traktory i sel hozmashiny. 2014;81(1):34
34
Increase of high angle conveyors’ technological reliability
摘要
Issues of technological reliability increase for high angle conveyor’s operation are considered. It can be ensured by means of coupling improving between a belt and a driving drum, belt retention in case of its breaking and prevention of belt reverse when a conveyor is stopped. Original designs for a driving drum, a disc drum brake, device for conveyor’s belt catching in case of its breaking are proposed; their operation is considered.
Traktory i sel hozmashiny. 2014;81(1):35-37
35-37
Experimental research of motor-and-tractor starters’ wear resistance
摘要
Regularities of influence of geometric characteristics and working units material on wear resistance of different kinds of eccentric freewheel clutches for motor-and-tractor starter drives have been experimentally determined.
Traktory i sel hozmashiny. 2014;81(1):37-39
37-39
Diagnostics of turbocharger for motor-and-tractor diesel engine using the КИ 5543 running and braking bench developed by GOSNITI
摘要
Programming and engineering tools needed for diagnostic tests of turbocharger are described. Possibilities of running and braking bench developed by GOSNITI are improved.
Traktory i sel hozmashiny. 2014;81(1):39-41
39-41
Renewal and strengthening of A-hoe blades for cultivating machines using ceramic-metal materials
摘要
A promising technology of renewal and following strengthening for A-hoe blades for soil cultivating machines which also can be applied for new blades strengthening is considered. The developed technology allows substantially increase wear resistance of blades edges by means of a ceramic-metal coating.
Traktory i sel hozmashiny. 2014;81(1):42-43
42-43
Technological mode and transport support of agricultural production in some foreign countries
摘要
It was shown by the example of Australian, Canada, German, USA and other countries that a tractor is profitable mainly when it used for slow short-distance small-lot cargo transportation within farms. It is not improbable that agricultural automobile transport development will be necessary for further increase in agriculture productivity.
Traktory i sel hozmashiny. 2014;81(1):44-47
44-47
Technologies and machinery for potato growing at the Potato Europe 2013 exhibition
摘要
Information about main displays at the exhibition is given in particular about field demonstration of potato harvesters and potato processing lines. Constructive features of machinery and equipment for potato cultivation and production featured in an exhibition are considered.
Traktory i sel hozmashiny. 2014;81(1):48-51
48-51
International research and practice conference Transport, logistics, environmental management-2013
摘要
24 октября 2013 г. в Ереване состоялась 4-я Международная научно-практическая конференция «Транспорт, логистика, природопользование-2013», в которой приняли участие представители специализированных университетов разных стран. На конференции были прочитаны доклады и научные сообщения, посвященные актуальным проблемам и вопросам теории и практики логистики, надежности и эффективности функционирования транспортно-технологических систем, экологической безопасности, природопользования.
Traktory i sel hozmashiny. 2014;81(1):41
41
Commemorating the 80th anniversary of L.Ye. Ageyev
摘要
27 сентября 2013 г. научная общественность России и стран СНГ отметила 80-летие со дня рождения заслуженного деятеля науки и техники РФ, д-ра техн. наук, проф. Леонида Ефимовича Агеева (27.09.1933 – 18.12.2004).
Traktory i sel hozmashiny. 2014;81(1):52
52