卷 79, 编号 12 (2012)
- 年: 2012
- 文章: 21
- URL: https://journal-vniispk.ru/0321-4443/issue/view/3644
Articles
Multioperation aggregates on the base of mobile power machines of 5th generation
摘要
Multioperation harvesting-sowing and harvesting-cultivating single-pass machine-tractor aggregates on the base of mobile power machines of 5th generation are synthesized. They are the crawler machines of 8 category, 412 horsepower. Calculated economic efficiency of new machines system in comparison to modernized existing ones is obtained.
Traktory i sel hozmashiny. 2012;79(12):3-13
3-13
A universal belt for the improvement of cohesiveness and braking properties of pneumatic tires
摘要
Construction of a universal quick-detachable antiskid belt allowing to improve considerably the tractive-cohesive and braking properties of wheeled machines is suggested.
Traktory i sel hozmashiny. 2012;79(12):14-16
14-16
A new technology of seeds plowing down
摘要
Soil density of a furrow bottom after seeds embedding during the sowing is determined theoretically.
Traktory i sel hozmashiny. 2012;79(12):16-17
16-17
Improvement of processing characteristics of a two-disk plougshare
摘要
Construction of an attachment for the СЗ-5.4 seeders line is developed. This device ensures the uniform depth of seeding and soil covering of furrows. The operation quality of standard and experimental ploughshares was studied.
Traktory i sel hozmashiny. 2012;79(12):17-18
17-18
A system of wheeled tractor movement control based on the satellite navigation
摘要
A technique for definition of the law of movement control of wheeled machine on a set trajectory, structure and principle of operation of an electromechanical movement control system and findings of experiments are presented.
Traktory i sel hozmashiny. 2012;79(12):19-21
19-21
Performance assessment of a sustained power engine under probabilistic nature of external factors, based on the «maximum of effective power» criterion
摘要
Software for the estimation of optimal zone of machine-tractor units performance and for the quantitative evaluation of its deformation degree under probabilistic nature of external factors is presented.
Traktory i sel hozmashiny. 2012;79(12):22-23
22-23
Slipping dynamics of a class 1,4 wheeled tractor
摘要
A mathematical model of wheeled tractor loading by alternating tractive force, which allows to examine the influence of loading regime (behavior of hook load) on tractor’s kinematic losses variation is considered.
Traktory i sel hozmashiny. 2012;79(12):23-25
23-25
Analysis of influence of machine-tractor unit completing quality on its movement dynamics
摘要
The influence of changing load on machine-tractor unit movement is examined. The unit is considered as a dynamic system consisting of invariable components which are perfectly rigid bodies and connections between them are considered to be absolutely rigid or elastic viscous.
Traktory i sel hozmashiny. 2012;79(12):26-28
26-28
Efficiency of power part transfer to rotary working organs
摘要
Power inputs reasonability of power part transfer in a mobile tractive agricultural aggregate directly to rotary working organs, for example to disk digging tools of abeet harvesting machine, was investigated. The indicator under study was evaluated by efficiency coefficient of energy transformation.
Traktory i sel hozmashiny. 2012;79(12):29-31
29-31
Tractive resistance of a disk plough-harrow
摘要
A theoretical method of tractive force calculation for disk hoeing ploughs in function of cultivated soil layer sectional area, which depends on the angle of attack, depth of tillage, distance between disks along the shaft and number of disks, is considered.
Traktory i sel hozmashiny. 2012;79(12):32-33
32-33
A mathematical model of threaded connections of agricultural machines taking into account the compliance of connected parts
摘要
To increase the uniformity of cross load distribution in fixing details of group threaded connections of working organs’ parts of agricultural machinery a mathematical model was developed taking into account the compliance of connected parts.
Traktory i sel hozmashiny. 2012;79(12):33-36
33-36
Assessment criteria of engineering level of free-wheel clutch mechanisms
摘要
Coefficients for the assessment of technical and economic properties of free-wheel clutch mechanisms for drives of agricultural machinery were suggested. Comparative evaluation of engineering level of non-frictional type eccentric mechanisms and mechanisms with sprags was carried out.
Traktory i sel hozmashiny. 2012;79(12):36-38
36-38
A test bench for the examination of lubrication conditions of crankshaft bearings of internal-combustion engines
摘要
Structural components of a test bench for the examination of operation conditions of crankshaft bearings of an internal-combustion engine are considered. Findings of the investigation can be used for the calculation and improvement of engines lubrication system and development of their technical state diagnostics system.
Traktory i sel hozmashiny. 2012;79(12):38-40
38-40
Ensuring the technological process stability of a helical mixer-spreader for mineral fertilizers
摘要
Results of analysis of technological process of mineral fertilizers mixes entering by a spiral-screw mixer-spreader are given. It was shown that deviation of separate systems of mixer-spreader from optimal performance ratio affects on fertilizer distributor operation and disturbs the quality indexes of its performance. Further research guidelines are projected.
Traktory i sel hozmashiny. 2012;79(12):40-42
40-42
Universal testing and diagnostic equipment for repair shops
摘要
New universal testing and diagnostic equipment for the quality control of repair, adjustment and running-in of hydraulic drive aggregates and transmissions for tractors, vehicles and agricultural machines is presented.
Traktory i sel hozmashiny. 2012;79(12):42-45
42-45
Warm-up of tractor systems and units with exhaust gases during the operation in conditions of low temperatures
摘要
Findings of theoretical and experimental researches of tractors’ systems and aggregates warm-up under low environment temperatures are presented.
Traktory i sel hozmashiny. 2012;79(12):45-47
45-47
A mathematical model of reliability of technical service subsystem of a grain processing plant
摘要
Relation between the theoretical research of mathematical reliability theory application, the increase of operating effectiveness and the period of reliable operation of grain processing plant equipment is given.
Traktory i sel hozmashiny. 2012;79(12):47-49
47-49
MK-5 frictional material produced with the use of free filled layer technology
摘要
Evaluation of operating efficiency of frictional materials made by different manufacturers, allowing to determine the prospect of their use in high-loaded friction assembly, is presented.
Traktory i sel hozmashiny. 2012;79(12):49-52
49-52
Influence of residual stresses on the precision of crawler tracks’ hollow fingers under high-temperature thermomechanical treatment with deformation by screw cogging
摘要
Residual stresses formed under screw cogging deformation in the high-temperature thermomechanical treatment mode were considered. They facilitate the increase of hot-rolled metal pipe precision up to precision level of cold-calibrated rolled metal by outside diameter.
Traktory i sel hozmashiny. 2012;79(12):52-54
52-54
Basic provisions of the «Machines passability» monograph
摘要
Engineering solutions of the problem of soil protection from tractor wheels and crawlers impact, based on the profound analysis of rice field soil behavior, are suggested. Ploughing, leveling and smoothing of rice fields by water layer were analyzed. Special attention was paid to the cleaning of rice irrigating systems’ channels from soil and plant residues.
Traktory i sel hozmashiny. 2012;79(12):55-56
55-56
S.Ya. Radchenko
Traktory i sel hozmashiny. 2012;79(12):56
56