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Молочнохозяйственный вестник, №3 (15), III кв. 2014
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Summary
The development and implementation of advanced technologies by restorating
parts in agricultural machinery let increase quality repair and prolong their service life.
The multy-purpose flange centromedian is a device that deposes a part relative to the
axis of its rotation before tooling, for example, before grinding of crancshaft journals.
The multy-purpose flange centromedian has a less weght that lets decrease inertia
when starting the machine and reduce strain of crancshaft rotation. The multy-purpose
flange centromedian lets lie the stock material in 2 planes. These advantages increase
the accurate crancshaft journal grinding. It is possible to state the racking test values
of the technical system “Machine- Device- Tool-Part” (MDTP). It is possible to neglect
the stock material rigidity, for example, when minimizing the bending moment of
the radial component of cutting force action. The comparison of racking test values
of the round-grinding lathe 3A423 with a standart cartridge- centromedian and a
multy-purpose flange centromedian is of interest. It has been resulted that the multy-
purpose flange centromedian rigidity is 20% less than one of the standart cartridge-
centromedian. It has been established that the value of elastic deformation is 25 %. It
has been stated that the multy-purpose flange centromedian has the adequate rigidity
for accurate crancshaft journal grinding. The advantages of the the multy-purpose
flange centromedian let use it in repairing.
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