Obnova lamelne hidravlične črpalke s spremenljivo iztisnino

Rupnik, Boštjan (author), Majdič, Franc (mentor)

Nemoteno delovanje hidravličnih strojev in naprav ima v industriji posredno velik vpliv na uspešnost poslovanja vsakega posameznega podjetja. Če pride do okvar, je zelo pomembno, da se le te čim hitreje in čim bolje popravijo. Na podobno težavo smo naleteli tudi v našem primeru – v proizvodnji kartona je prišlo do okvare lamelne črpalke s spremenljivo iztisnino. Naša naloga je bila črpalko čim bolje obnoviti in s tem zopet izboljšati njeno delovanje. V diplomski nalogi smo predstavili delovanje črpalke in predstavili njene sestavne dele. Pred obnovo smo izmerili delovne tlake in pretoke ter določili volumetrični izkoristek, ki je bil enak 53 %. S pomočjo analize obrabljenih sestavnih delov smo podali napotke za obnovo in jo tudi izvedli. Po obnovi smo izvedli meritve delovnega tlaka pri obeh možnih stopnjah nastavljanja. Poleg tega smo izvedli tudi meritve pretoka, preko katerega smo določili volumetrični izkoristek obnovljene črpalke.

• Language: Slovenian
• Keywords: lamelne črpalke, spremenljiva iztisnina, obnova, pretok, nastavljanje tlakov, volumetrični izkoristek
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [B. Rupnik]
• Year: 2019
• Number of pages: XX, 55 str.
• PID: 20.500.12556/RUL-105998
• UDC: 621.651:532.57(043.2)
• COBISS.SI-ID: 16482075
• Publication date in RUL: 11.01.2019

Secondary language

• Language: English
• Title: Renovation of the vane variable displacement hydraulic pump

Abstract

The undisturbed operation of hydraulic machines and devices in the industry has a significant impact on the performance of each individual company. If defects occur, it is very important to repair them as quickly as possible. In the production of the cardboard there was a breakdown of the vane pump with a variable displacement. Our task is to renovate the pump and determine if we have improved it. The diploma task is to learn about the operation and components of the pump. Before the renovation we measured the working pressures and flows and determined the volumetric efficiency, which was equal to 53%. Through the identification of the worn components, we were able to determine the instructions for renewal and to carry out the renovation. After the renovation, we measured the working pressure at the two possible levels of adjustment. We also carried out measurements of the flow through which we determined the volumetric efficiency of the renovated pump.

• Keywords: vane pumps, variable displacement, renovation, flow, pressure adjustment, volumetric efficiency