Keywords
change in departure
loader crane
dynamic loads
load vibrations
How to Cite
Abstract
In order to increase the productivity and reliability of a hydraulic-driven loader crane, the
paper considers a technique for conducting experimental studies in the area of changing the boom
system of a loader crane with a load in real and optimal modes of movement. At this stage,
experimental studies were carried out under the condition of only the angular movement of the jib.
To carry out experimental research, an experimental installation of a hydraulic-driven loader
crane was personally designed and manufactured. The measuring and recording equipment was
selected and adjusted.
Within the framework of the experimental studies of the dynamics of movement of the
boom system of a loader crane, with a load, a constructively modified spool with throttling slots
was developed, which improved the characteristics of the movement modes and made it possible to
realize the optimal modes of movement of the links of the boom system.
As a result, the experimental studies were carried out under the condition of angular
displacement of the jib with a load at the end of the boom system both in real and in optimal modes
of the movement. A data package was received for the real and optimal modes of movement of the
links of the boom system of a hydraulic drive loader crane. The processed data were presented
graphically and a comparative analysis of the real and optimal modes of movement was carried out.
The analysis of the experimental studies carried out made it possible to calculate the effect
of the jib movement on the oscillations of the load, and the actual effect of the load oscillations on
the dynamic loads that arise in the boom system and elements of the hydraulic drive of the loader
crane under different modes of movement.