Experimental research of hydraulic roll-gerotor motor with variable torque loads

U ovome radu obrađena je tema eksperimentalne analize zupčastog hidromotora pri promjenjivom opterećenju. Za potrebe analize i mjerenja korišten je sustav izrađen na Tehničkom fakultetu u Rijeci. Sustav je konstruiran, izrađen i prilagođen za eksperimentalnu analizu hidromotora. Da bi se vršila eksperimentalna analiza sustava potrebno je poznavati karakteristike i ulogu pojedinih komponenti u sustavu. Sustav se može podijeliti u tri podsustava, hidraulički sustav, sustav kočnice i mjerna oprema kojom se mjere radni parametri u sustavu. Navedene su komponente svakoga podsustava te je objašnjena njihova uloga u ukupnom sustavu. Ispitivanje hidromotora kočenjem se obavlja u svrhu određivanja njegovih karakteristika što omogućuje lakše predviđanje njegovog ponašanja prilikom eksploatacije. Mjerenja su se obavila tako što je postepeno mijenjan intenzitet kočenja hidromotora te su mjereni iznosi veličina pri svakome intenzitetu. Mjerenja su se ponovila više puta kako bi se osigurala točnost i ponovljivost mjerenih veličina. U radu su prezentirani rezultati dobiveni mjerenjem i njihova analiza te su objašnjene fizikalne veličine koje imamo u sustavu. Rezultati dobiveni mjerenjem su uspoređeni s podacima koje proizvođač hidromotora prilaže s karakteristikama hidromotora. Osim usporedbe sustava cilj je utvrditi prednosti i nedostatke trenutnog sustava kočenja hidromotora te proučiti načine poboljšanja sustava u budućnosti.In this paper was processed topic of experimental analysis of a toothed hydromotor under variable load. For the purposes of analysis and measurement it has been used system build at the Faculty of Engineering in Rijeka. The system is designed, engineered and adapted for experimental hydromotor analysis. In order to perform an experimental analysis of system it is necessary to know the specification and role of each individual component used in the system. The system can be divided into three subsystems, a hydraulic system, a brake system, and a measuring devices which are used to measure the work parameters in the system. Braking hydromotor testing is performed to determine its propertis, which makes it easier to predict system behavior during exploitation. Measurements were made by changing the braking intensity of the hydromotor step by step and we measured the value of the every parametar at each intensity. The measurements were repeated several times to ensure the accuracy and repeatability of the measured size. In the paper are presented results obtained by measuring and analyzing system and the physical sizes we have in the system are explained. The results obtained by measuring are compared with the data that the manufacturer of the hydromotor provide with their product . In addition to system comparisons, the goal is to identify the advantages and disadvantages of the current system and to study ways of improving the existing system of breaking hydromotor in the future