DETERMINATION OF THE COEFFICIENT OF ELASTICITY OF OIL FLAX STEMS

Abstract

During flax harvesting flax stems are burned in a field. It is very harmful to the environment. Therefore, it is proposed to use flax stems for fuel production. Also, it is important to develop machine for flax stem harvesting, which would include the mechanism of the stem destruction. It is necessary to substantiate the parameters of such a machine taking into account the properties of flax stems. A new method for determining the coefficient of elasticity of oil flax stems, which takes into account the number of mechanical effects to break the bonds between the components of the stem without breaking the fiber, was proposed in the article. For this purpose, the mechanism for the stem destruction was designed, which consists of a pair of rollers with trapezoidal corrugations and provides the process of breaking the bonds between the flax wood and the flax fibers by flattening. The flattening of the flax stems includes the process of double bending, which is carried out by the mechanism of the stem destruction. The most important parameters for this process are the friction coefficient between the oil flax stems and the metal surfaces of the rollers of destruction mechanism. For the oil flax harvesting technology, which involves harvesting the entire biological yield of the crop (flax seeds and flax fibers), it is very important to reduce the elastic properties of the flax stems without breaking the flax fibers. This technology requires a machine for collecting the pre-cut flax stems with a rotary mower. Also it is important to separate flax seed during the harvesting and to form the flax stem into rolls. The height of the flax band on the field depends on the yield of the flax stem. Taking into account the height of the flax band allowed us to determine the number of roller pairs of the mechanism of the stem destruction.