Hydraulic Symbols – Part Two: Pumps and Actuators

Abstract

At the current level of technological development, it is widely accepted that survival and progress of modern agricultural technology (among other things) is based on the widespread application of electronically controlled hydraulic systems, supported by mechanical elements of power transmission and control. This paper is a logical continuation of the first part, entitled "Hydraulic symbols - part I: general symbols and designations of measuring instruments and indicators". Therefore, the current second part of the paper is devoted to the presentation and description of hydraulic symbols of pumps and various types of actuators: linear, rotary and oscillatory. Symbols of the combined-function devices, which can optionally function in two different operating modes, such as pumps or motors, are also shown. Standard symbols of all groups of hydraulic components, which are in the focus of this paper, are standardized and defined by ISO industry standards.

Na sadašnjem nivou tehnološkog razvoja, opšte je prihvaćeno mišljenje da savremena poljoprivredna tehnika, između ostalog, svoj napredak zasniva na širokoj primeni elektronski kontrolisanih hidrauličkih sistema, podržanih mehaničkim elementima prenosa snage i upravljanja. Ovaj rukopis predstavlja logičan nastavak prvog dela rada, pod nazivom „Hidraulički simboli - deo I: opšti simboli i oznake mernih instrumenata i indikatora“, posvećenog pripadajućoj tematici. Zato je drugi deo rada posvećen prikazu i opisu hidrauličkih simbola pumpi i različitih tipova izvršnih hidrauličkih organa i to: linearnih, rotacionih i oscilatornih. Takođe su predstavljeni i simboli uređaja kombinovane namene, koji opciono mogu funkcionisati u dva različita radna režima, kao hidrauličke pumpe ili hidraulički motori. Simboli svih grupa hidrauličkih komponenata, koje su u fokusu ovog rada, standardizovani su i definisani ISO industrijskim standardima.