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Electro-hydraulic drive of the variable ratio lifting device under active load
ID
Kosucki, Andrzej
(
Author
),
ID
Stawiński, Łukasz
(
Author
),
ID
Morawiec, Adrian
(
Author
),
ID
Goszczak, Jarosław
(
Author
)
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https://www.sv-jme.eu/sl/article/electro-hydraulic-drive-of-the-variable-ratio-mechanism-operating-under-active-load/
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Abstract
Hydraulic systems fed by fixed displacement pumps driven by frequency-controlled electric motors can replace conventional throttling systems due to their ability to control the speed of hydraulic cylinders regardless of the value and direction of the load. These systems can improve the energy efficiency of the drive or even provide the possibility of energy recuperation during lowering. This paper presents experimental studies of the new drive system with volumetric control of the speed of the lifted/lowered payload using the example of a scissor lift. The system uses a reversible gear pump driven by an asynchronous motor fed by a frequency inverter operating in field-oriented control mode. Comparative studies of the mapping of the assumed speed of the hydraulic cylinder and platform are presented, as well as studies of the influence of the load change on the speed and positioning of the mechanism driven by the open-loop controlled system.
Language:
English
Keywords:
hydraulic drives
,
speed controlled pumps
,
variable-ratio device
,
lifting systems
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2021
Number of pages:
Str. 599-610
Numbering:
Vol. 67, no. 11
PID:
20.500.12556/RUL-133677
UDC:
621.22
ISSN on article:
0039-2480
DOI:
10.5545/sv-jme.2021.7320
COBISS.SI-ID:
88437507
Publication date in RUL:
08.12.2021
Views:
519
Downloads:
154
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Record is a part of a journal
Title:
Strojniški vestnik
Shortened title:
Stroj. vestn.
Publisher:
Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
ISSN:
0039-2480
COBISS.SI-ID:
762116
Secondary language
Language:
Slovenian
Title:
Elektrohidravlični pogon aktivno obremenjene dvigalne naprave z variabilnim razmerjem
Keywords:
hidravlični pogoni
,
črpalka z nastavljivo hitrostjo
,
naprava z variabilnim razmerjem
,
dvigalni sistem
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