Vol 80, No 8 (2013)
- Year: 2013
- Articles: 21
- URL: https://journals.rcsi.science/0321-4443/issue/view/3635
Articles
3-4
Bases of the theory of mechanical energy functioning in technological machines
Abstract
Basic principles of the theory of mechanical energy functioning in technological machines are suggested. Equations of force and speed factors are composed on the base of analytical mechanics. Calculated formulas of active and reactive powers for gears with elastic and inertia elements are deduced.
Traktory i sel hozmashiny. 2013;80(8):5-8
5-8
A soil cultivating roller
Abstract
Structure and operation principle of an improved soil cultivating roller are given. Interaction between teeth and perforations on roller plates and cultivated soil prevents the displacement of soil particles to one of roller side faces. It ensures the uniformity of both cultivation depth and soil density, which are necessary for further high-quality sowing.
Traktory i sel hozmashiny. 2013;80(8):9-10
9-10
10-11
Duplex electromechanical transmission with automatic control system
Abstract
Electromechanical transmission with automatic module control system including power and technological channels is suggested. Algorithm for resistance determination during segmentary-finger mover operation taking into account power expenditures for driving moment and angular velocity fluctuations is given. Operating ranges of mobile power module with mover mechanical drive and standard Т-25А tractor with КС-2,1 mover were compared.
Traktory i sel hozmashiny. 2013;80(8):12-13
12-13
14-19
The problem of synthesis of control algorithms for gear shift using electric-hydraulic and electronic devices
Abstract
Approaches to the problem of synthesis of control algorithms for gear shift using electric-hydraulic and electronic devices were examined. It is noted that well-timed shift should increase tractor velocity and a “successful” algorithm should not worsen its usability. Possible criteria were analyzed.
Traktory i sel hozmashiny. 2013;80(8):20
20
21-23
Performance and power inputs of machine and tractor aggregate
Abstract
Results of analytical investigation of gear reduction rate and transmissive sequence choice for К-744Р-05 tractor transmission are presented. Regular transmission is estimated. Two methods of hyperbolic curve division into segments are examined, taking into account that product of tangential tractive effort and velocity is the constant and condition of an obligatory reserve of engine power for temporary overloads overcoming is fulfilled. Specified gear boxes types for different machine and tractor aggregates are recommended.
Traktory i sel hozmashiny. 2013;80(8):23-28
23-28
28-30
30-32
32-34
34-36
36-37
38-39
Power consumption of soil rotary tillage with small-size cutters having driving wheels
Abstract
Power inputs were analyzed and equations of power consumption of soil rotary tillage with the use of self-propelled small-size soil cultivating cutters with road wheels were obtained depending on soil conditions, operation modes and machine structural features.
Traktory i sel hozmashiny. 2013;80(8):39-41
39-41
Modeling of spring tines of combined cultivators
Abstract
Working organs of combined cultivators on spring tines are examined. Parameters of spring tines’ stressedly-deformed state were obtained on the base of loads modeling. Rigidity adjustment of the tines is suggested to use them on different soils.
Traktory i sel hozmashiny. 2013;80(8):41-44
41-44
44-47
Influence of acceptable wearing of a part on its reliability parameters
Abstract
The proposed technique permits to determine the minimal replacement parts consumption, to decrease expenditures on them, to regulate consumption in repair services, to reduce the probability of parts failure and the cost of machine maintenance.
Traktory i sel hozmashiny. 2013;80(8):47-50
47-50
Forecasting of parametric reliability of technological equipment units by output accuracy parameters
Abstract
Diagrams of forecasting and reliability margin of technological equipment as well as diagram of parametric failure on accuracy index are presented. The algorithm is developed and its flow chart for parametric reliability forecasting by the Monte-Carlo method is formed.
Traktory i sel hozmashiny. 2013;80(8):51-53
51-53
54-56