Parameters-adapters of wheeled tractors

Autor: A. V. Kuznetsov, Yu N. Makeeva, N. I. Selivanov, V. V. Averyanov, V. N. Zaprudsky
Rok vydání: 2020
Zdroj: IOP Conference Series: Earth and Environmental Science. 548:062009
ISSN: 1755-1315
1755-1307
DOI: 10.1088/1755-1315/548/6/062009
Popis: The article considers the rationale for the adapter parameters of wheeled tractors using high-speed tillage units. Models and an algorithm for optimizing the traction-speed regime and the specific gravity of wheeled tractors for operational tillage technologies were proposed. As the basic factors of influence, we used the characteristics of the towing and coupling properties of tractors and the resistivity of serial and high-speed working machines in tillage operations, which were established based on the results of modeling and experiments. The maximum speed mode of the units was established from the condition of a minimum of energy costs attributed to the product of specific productivity and speed, and minimum with a minimum value of the ratio of specific energy consumption and productivity. The rational value of the specific gravity of the tractor for an individual operation or a group of related tillage operations in terms of energy intensity corresponds to the nominal traction and speed mode with maximum traction efficiency and nominal speed, which ensures an increase in specific energy consumption of no more than 10-12%. The specific gravity was 66-69 kg/kW for moldboard plowing by high-speed plows at 2.5 m/s (9.0 km/h), which is achieved by installing on the tractor, depending on the basic configuration, removable ballast with a specific gravity of 7-13 kg/kW. In operations of the second and third energy-intensive groups, the mass of ballast must be reduced to 0-5 kg/W. When working with serial mounted plows in the speed range of 7-9 km/h, to increase the specific gravity to 71-74 kg/kW, it is advisable to use a tractor hydraulic loader.
Databáze: OpenAIRE
Externí odkaz: