1 research outputs found
ΠΠ΅ΡΠΎΠ΄ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Ρ Π²Π°Π»ΠΊΠ°ΠΌΠΈ Π² Π²ΠΈΠ±ΡΠΎΠ²Π°Π»ΠΊΠΎΠ²ΠΎΠΌ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠΈΡΠ΅Π»Π΅
The article presents the results of a study of the process of material grinding in roller aggregates with various kinematic features. As the object of research, the design of a vibroroller unit is selected, which has great prospects for use in production. A characteristic feature of this unit is a significant influence on the grinding process of inertia forces. As the main method of research in relation to the movement of the working bodies of the roller and vibroroller shredder and the crushed material, a method of modeling is adopted. It is presented an approximate analysis of the interaction of the crushed material in roll units with rolls. The crushed material is modeled by a set of horizontal elementary layers. At the first stage, the material is crushed in rolls with constant kinematic parameters. Analytical dependencies of the roll pressure on the material are established. At the second stage, the grinding of materials in a vibroroller shredder is considered. A distinctive feature of the vibroroller shredder is the presence of an eccentrically installed roll. The variant is presented when the eccentric performs a curvilinear translational motion, and the roll performs harmonic fluctuation (vibrations) along the coordinate axes with an amplitude of e. The resulting inertia forces and oscillatory motions of the roll are considered. The analysis of the total force in the unit under consideration, which makes it possible to implement crushing-shear and vibration effects on the crushed material, is carried out. The force interaction of the roll with the material is described by two systems of forces: the elastic forces resulting from the contraction of the model layers according to Hookeβs law, and the forces caused by the vibration of the roll (inertia forces). The results obtained are of practical importance in the design of roller units and vibration equipment, as well as for the analysis of the operation of such designs of grinders.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π² Π²Π°Π»ΠΊΠΎΠ²ΡΡ
Π°Π³ΡΠ΅Π³Π°ΡΠ°Ρ
Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ ΠΊΠΈΠ½Π΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΡΠΌΠΈ. Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΎΠ±ΡΠ΅ΠΊΡΠ° ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²ΡΠ±ΡΠ°Π½Π° ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡ Π²ΠΈΠ±ΡΠΎΠ²Π°Π»ΠΊΠΎΠ²ΠΎΠ³ΠΎ Π°Π³ΡΠ΅Π³Π°ΡΠ°, ΠΈΠΌΠ΅ΡΡΠ΅Π³ΠΎ Π±ΠΎΠ»ΡΡΠΈΠ΅ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π² ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅. Π₯Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΠΎΠΉ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΡΡ ΡΠ°ΠΊΠΎΠ³ΠΎ Π°Π³ΡΠ΅Π³Π°ΡΠ° ΡΠ²Π»ΡΠ΅ΡΡΡ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ Π²Π»ΠΈΡΠ½ΠΈΠ΅ Π½Π° ΠΏΡΠΎΡΠ΅ΡΡ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΡ ΡΠΈΠ» ΠΈΠ½Π΅ΡΡΠΈΠΈ. Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΈΠ½ΡΡ ΠΌΠ΅ΡΠΎΠ΄ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ, ΠΏΡΠΈΡΠ΅ΠΌ ΠΏΡΠΈΠΌΠ΅Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΊ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ ΡΠ°Π±ΠΎΡΠΈΡ
ΠΎΡΠ³Π°Π½ΠΎΠ² Π²Π°Π»ΠΊΠΎΠ²ΠΎΠ³ΠΎ ΠΈ Π²ΠΈΠ±ΡΠΎΠ²Π°Π»ΠΊΠΎΠ²ΠΎΠ³ΠΎ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠΈΡΠ΅Π»Ρ ΠΈ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ°Π΅ΠΌΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ΅Π½Π½ΡΠΉ Π°Π½Π°Π»ΠΈΠ· Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ°Π΅ΠΌΠΎΠ³ΠΎ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π² Π²Π°Π»ΠΊΠΎΠ²ΡΡ
Π°Π³ΡΠ΅Π³Π°ΡΠ°Ρ
Ρ Π²Π°Π»ΠΊΠ°ΠΌΠΈ. ΠΠ·ΠΌΠ΅Π»ΡΡΠ°Π΅ΠΌΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» ΠΌΠΎΠ΄Π΅Π»ΠΈΡΡΠ΅ΡΡΡ ΡΠΎΠ²ΠΎΠΊΡΠΏΠ½ΠΎΡΡΡΡ Π³ΠΎΡΠΈΠ·ΠΎΠ½ΡΠ°Π»ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΡΠ½ΡΡ
ΡΠ»ΠΎΠ΅Π². ΠΠ° ΠΏΠ΅ΡΠ²ΠΎΠΌ ΡΡΠ°ΠΏΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π° Π² Π²Π°Π»ΠΊΠ°Ρ
Ρ ΠΏΠΎΡΡΠΎΡΠ½Π½ΡΠΌΠΈ ΠΊΠΈΠ½Π΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ Π°Π½Π°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ Π΄Π°Π²Π»Π΅Π½ΠΈΡ Π²Π°Π»ΠΊΠΎΠ² Π½Π° ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π». ΠΠ° Π²ΡΠΎΡΠΎΠΌ ΡΡΠ°ΠΏΠ΅ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½ΠΎ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ΅Π½ΠΈΠ΅ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π² Π²ΠΈΠ±ΡΠΎΠ²Π°Π»ΠΊΠΎΠ²ΠΎΠΌ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠΈΡΠ΅Π»Π΅. ΠΡΠ»ΠΈΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΡΡ Π²ΠΈΠ±ΡΠΎΠ²Π°Π»ΠΊΠΎΠ²ΠΎΠ³ΠΎ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠΈΡΠ΅Π»Ρ ΡΠ²Π»ΡΠ΅ΡΡΡ Π½Π°Π»ΠΈΡΠΈΠ΅ ΡΠΊΡΡΠ΅Π½ΡΡΠΈΡΠ½ΠΎ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½ΠΎΠ³ΠΎ Π²Π°Π»ΠΊΠ°. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ Π²Π°ΡΠΈΠ°Π½Ρ, ΠΊΠΎΠ³Π΄Π° ΡΠΊΡΡΠ΅Π½ΡΡΠΈΠΊ Π²ΡΠΏΠΎΠ»Π½ΡΠ΅Ρ ΠΊΡΠΈΠ²ΠΎΠ»ΠΈΠ½Π΅ΠΉΠ½ΠΎ-ΠΏΠΎΡΡΡΠΏΠ°ΡΠ΅Π»ΡΠ½ΠΎΠ΅ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΠ΅, Π° Π²Π°Π»ΠΎΠΊ ΡΠΎΠ²Π΅ΡΡΠ°Π΅Ρ Π³Π°ΡΠΌΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΡ (Π²ΠΈΠ±ΡΠ°ΡΠΈΠΈ) Π²Π΄ΠΎΠ»Ρ ΠΎΡΠ΅ΠΉ ΠΊΠΎΠΎΡΠ΄ΠΈΠ½Π°Ρ Ρ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΠΎΠΉ Π΅. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π²ΠΎΠ·Π½ΠΈΠΊΠ°ΡΡΠΈΠ΅ ΠΏΡΠΈ ΡΡΠΎΠΌ ΡΠΈΠ»Ρ ΠΈΠ½Π΅ΡΡΠΈΠΈ ΠΈ ΠΊΠΎΠ»Π΅Π±Π°ΡΠ΅Π»ΡΠ½ΡΠ΅ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ Π²Π°Π»ΠΊΠ°. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· ΡΡΠΌΠΌΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΡΠΈΠ»ΠΈΡ Π² ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΠΌΠΎΠΌ Π°Π³ΡΠ΅Π³Π°ΡΠ΅, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΠ΅ΠΌ ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°ΡΡ ΡΠ°Π·Π΄Π°Π²Π»ΠΈΠ²Π°ΡΡΠ΅-ΡΠ΄Π²ΠΈΠ³ΠΎΠ²ΠΎΠ΅ ΠΈ Π²ΠΈΠ±ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ΅ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π½Π° ΠΈΠ·ΠΌΠ΅Π»ΡΡΠ°Π΅ΠΌΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π». Π‘ΠΈΠ»ΠΎΠ²ΠΎΠ΅ Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΠΈΠ΅ Π²Π°Π»ΠΊΠ° Ρ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠΌ ΠΎΠΏΠΈΡΠ°Π½ΠΎ Π΄Π²ΡΠΌΡ ΡΠΈΡΡΠ΅ΠΌΠ°ΠΌΠΈ ΡΠΈΠ»: ΡΠΈΠ»Π°ΠΌΠΈ ΡΠΏΡΡΠ³ΠΎΡΡΠΈ, Π²ΠΎΠ·Π½ΠΈΠΊΠ°ΡΡΠΈΠΌΠΈ Π² ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΡΠΎΠΊΡΠ°ΡΠ΅Π½ΠΈΡ ΠΌΠΎΠ΄Π΅Π»ΡΠ½ΡΡ
ΡΠ»ΠΎΠ΅Π² ΡΠΎΠ³Π»Π°ΡΠ½ΠΎ Π·Π°ΠΊΠΎΠ½Ρ ΠΡΠΊΠ°, ΠΈ ΡΠΈΠ»Π°ΠΌΠΈ, Π²ΡΠ·Π²Π°Π½Π½ΡΠΌΠΈ Π²ΠΈΠ±ΡΠ°ΡΠΈΠ΅ΠΉ Π²Π°Π»ΠΊΠ° (ΡΠΈΠ»Π°ΠΌΠΈ ΠΈΠ½Π΅ΡΡΠΈΠΈ). ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΠΌΠ΅ΡΡ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΡΡ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ ΠΏΡΠΈ ΠΏΡΠΎΠ΅ΠΊΡΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ Π²Π°Π»ΠΊΠΎΠ²ΡΡ
Π°Π³ΡΠ΅Π³Π°ΡΠΎΠ² ΠΈ Π²ΠΈΠ±ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠ΅Ρ
Π½ΠΈΠΊΠΈ, Π° ΡΠ°ΠΊΠΆΠ΅ Π΄Π»Ρ Π°Π½Π°Π»ΠΈΠ·Π° ΡΠ°Π±ΠΎΡΡ ΠΏΠΎΠ΄ΠΎΠ±Π½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΠΈΠ·ΠΌΠ΅Π»ΡΡΠΈΡΠ΅Π»Π΅ΠΉ