Lignite Brown Coal Research Development contract innovation update

Lignite Brown Coal Research Development contract innovation update

currently no new projects listed

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older Projects:

Optimization of the dynamic behavior of slewing mechanisms for bucket wheel excavators
Swivel mechanisms enable the targeted control of a rotary movement. This is between
two ball races arranged a plurality of rolling elements, which have a bearing function
of the rotatable system part. The slewing ring is driven by a
Pinion-ring gear system, whereby the drive power necessary for the rotary movement is over
several swivel drives arranged on the circumference of the ring gear are provided.
During the digging process, the bucket wheel excavator’s superstructure is lifted over the slewing mechanism
pivoted about its vertical axis, so that a large area of ​​the slope from the paddle wheel
can be covered without moving the device. However, due to the
mechanical coupling with the wheel arm, the digging forces in the slewing gear and in the
Swivel gear. Various process-specific effects contribute to the fact that the
The nominal loads of the digging and swiveling process are superimposed on dynamic loads. The
Dynamic additional loads limit the service life of those involved in the digging process
Machine elements, as every load cycle leads to partial damage to the components. In addition, will
the inherent behavior of the system is addressed, so that excess resonance occurs and
further promote component fatigue.
With the help of the simulation models to be developed, the overall system is coordinated
in terms of improved dynamics. As a suitable method of achieving this
The aim is to develop an optimized motor control for the swivel drives.
Linked to this is the analysis of the influence of the individual drive train components on
the dynamic behavior of the pan and dig process. This enables the delivering
SMEs integrate their partial deliveries into a coordinated system so that in

 

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