Збірники наукових праць ЦНТУ
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Item До методики експериментального визначення показника режиму повороту машинно-тракторного агрегату(КНТУ, 2015) Масалабов, В. М.; Masalabov, VasilУ статті наведено методику визначення показника режиму повороту машинно-тракторного агрегату у складі універсально-просапного трактора тягового класу 1,4, двох причіпних сівалок СЗ-3,6 і нової напівнавісної зчіпки. The aim of this paper is to develop a methodology for identifying target mode of motion in turning a strip of machine-tractor unit, which consists of universally-till tractors of drawbar category 1.4, two trailed seeders ɋɁ-3.6 and the new semi-mounted coupling. Experimental research found that implementation of the loop rotate researched unit occurred with average speed Vp = 1.88 m/s. The average value of the angular velocity of steering the tractor is equal while Ȧ = 0.155 rad/s. As a result of the planting Unit carried out the rotate, the actual value of which mode (Kɩ) was 1.88 (m/s)/0.155 (rad/s) = 12.1 m/rad. This is only a 1.7% increase over the estimated value of the Ʉɩ, which for this type of turning the new aggregate is 11.9 m/rad. Even in relation to the optimal (11.4 m/rad) the actual value of the rotation mode was at 6.1%. In carrying out no-loop turns under experimental conditions with speed of the AIT on a turning lane (V) p = 1.90 m/s value of the angular velocity of the rotation of the steering wheel of the tractor during the occurrence unit in turn and exit amounted to 0.30 rad/s. Only this mode change control action allowed the unit to fit into the turn lane width of 16.15 m. This led to the implementation of the maneuver indicator mode Kɩ = 6.3 m/rad. In comparison with a calculation (5.9 m/rad) he more at 6.8%. At the same time, the relative optimal valid value Kɩ is 55.3%. As a result, when organization work of the planting unit should take into account that the loop turns it can perform almost optimally. When implementing unit rotation operator no-loop should more intensely affect steering wheel tractor. Reduction of the angular velocity of steering the tractor to a level, ensure that no-loop rotation planting unit with optimum rotation mode value, almost impossible.Item Оцінка трудоємкості агрегатування посівного МТА(КНТУ, 2015) Масалабов, В. М.; Masalabov, VasilНаведено дані оцінки трудоємкості агрегатування посівного МТА, який складається із універсально-просапного трактора тягового класу 1,4, двох причіпних сівалок СЗ-3,6 і нової напівнавісної зчіпки. Експериментально встановлено, що загальна трудоємкість цього процесу становить 0,077 люд.-год. Найбільшу (43%) частку виробничого часу займає від’єднання лівої сівалки та переміщення трактора вправо і вперед разом зі зчіпкою і приєднаною до неї правою посівною машиною. The purpose of this article is to assess the effects scheme of two-machines sowing unit labour input of the alteration of its situation in the workplace and vice versa. The unit consists of a universally-till tractors of drawbar category 1.4, two trailed seeders СЗ-3.6 and the new semi-mounted coupling. Study of retrofitting planting unit of the transport situation in the workplace and vice versa carried out by measuring the stopwatch time for each operation. All measurements during the refurbishment of the unit performed two mechanizers. The process alteration of the unit in the transport situation in the workplace include the following operations: detach the left and moving right tractor seeders; detach the right move left tractor and planter; installing the extension cord coupling of the transport situation in the workplace; adherence to the coupling of seeders. Experimentally determined that total time consuming process of rebuilding two-machines planting unit of the transport situation in the workplace is 0.077 p-h. The largest (43%) part of the production time is to detach the left and moving right tractor seeders and forward along with hitch and attached to the right the planting machine. To reduce non-productive time spent on creating a new unit structure coupling it is advisable to equip the semi-mounted it additional hydraulic cylinder. In addition to lifting and lowering the hitch extension it will act as a damper vertical oscillation.