METHOD FOR CONTROL OF OPERATION OF ONE-MASS VIBROMACHINE ON ELASTIC SUSPENSION

The present invention pertains to the field of vibration engineering, and it can be used for control of operation condition of one-mass vibromachines. Vibration motions of machine working head then can be used for technological purposes (compaction of material, vibration grinding, etc.) or for energy accumulation (e.g., air compression, charging of capacitors or batteries). The objective of the invention is to simplify the procedure for control of operation condition of one-mass vibromachine on elastic suspension and to increase its efficiency. The proposed method lies in action on working head of machine with excitation force and in changing of force value in specific time moments. For this purpose a special screen with adjustable frontal surface area is fastened to working head. Force excitation of the system is realized by the action on the screen perpendicularly to its frontal surface with air flow. Effective frontal surface area of the screen is changed on finite value in time moments corresponding to momentary stops of the working head. Maximal value of the screen's effective surface is set when the working head moves in air flow direction, but minimal value - at the working head motion in opposite direction to air flow. Izgudrojums attiecas uz vibrotehniku un to var izmantot darba režīma vadības nodrošināšanai vienmasas vibromašīnās. Vibromašīnas izpildelementa vibrācijas kustību pēc tam var izmantot tehnoloģiskos nolūkos materiāla blīvēšanai, drupināšanai u.c. vai enerģijas akumulācijai, piemēram, gaisa saspiešanai resīveros, kondensatoru vai akumulatoru uzlādēšanai. Izgudrojuma mērķis ir vienkāršot vienmasas vibromašīnas uz elastīgas piekares darba režīma vadības procedūru un paaugstināt tās efektivitāti. Realizējot piedāvāto paņēmienu, uz mašīnas izpildelementu iedarbojas ar ierosmes spēku un maina spēka lielumu noteiktos laika momentos. Šim nolūkam izpildelementam ir piestiprināts ekrāns, kuram ir regulējams darba virsmas laukums. Spēka ierosmi uz sistēmu īsteno, iedarbojoties uz ekrānu perpendikulāri tā darba virsmai ar gaisa plūsmu. Ekrāna