Razvoj dvopotnega tokovnega ventila s tlačnim kompenzatorjem

Čadež, Jaka (author), Majdič, Franc (mentor)

Diplomsko delo prikazuje razvoj dvopotnega tokovnega ventila s tlačnim kompenzatorjem, ki ga v mobilni hidravliki potrebujemo kot člen, ki omogoča kontroliranje hitrosti izvršilnih elementov. To lahko izvedemo tudi s črpalko z nastavljivo iztisnino, vendar je s tem ventilom to bolj enostavno. Ventil ima vgrajen tlačni kompenzator, ki vzdržuje konstanten padec tlaka, posledično pa se prek nastavljivih rež določa potrebno iztisnino. Pri razvoju ventila smo s pomočjo programov 3D-risanja izdelali modele in jih simulirali s trdnostno in tokovno analizo. V naslednji fazi je potekala izdelava tehnične dokumentacije in posameznih elementov. Ventil smo praktično preizkusili na preizkuševališču. Dobljeni rezultati so bili v skladu s pričakovanji. V nadaljevanju smo jih analizirali in ovrednotili. Na koncu so predstavljene še možnosti izboljšave in predlogi za nadaljnje delo.

• Language: Slovenian
• Keywords: hidravlika, tlačni kompenzator, tokovni ventil, padec tlaka, razvoj, FEA in CFD analiza
• Work type: Bachelor thesis/paper
• Organization: FS - Faculty of Mechanical Engineering
• Year: 2018
• PID: 20.500.12556/RUL-104879
• Publication date in RUL: 14.10.2018

Secondary language

• Language: English
• Title: Development of two way pressure compensated flow control valve

Abstract

This diploma work represent development of the valve, which is used in mobile hydraulics as a part, which allows to control the speed of final hydraulics component. This can be done with variable displacement hydraulic pump, but with this valve is this easily. The valve includes pressure compensator, which maintain constant pressure drop, and through adjustable orifices define displacement that we need. During the valve development we use programs for creating 3D parts of valve, then we simulate valve and parts with FEA and CFD analysis. Next step included making tehnical documentacion and manufacturing parts of the valve. Valve was practicaly tested on the test bench. Results that we have obtained and analyzed, have been expected. At the end we represent imporvements and options for the next work.

• Keywords: hydraulics, pressure compensator, flow control valve, pressure drop, development, FEA and CFD analysis