(57) A device in a concrete activator, with a number of paddies rotatable about a common
axel in a stationary mixing trough. The object is to provide a considerably simplified
construction with respect to the bearing- and spring device of the paddle unit, which
is so encased that the bearing- and spring components are not exerted to external
damages and impurities. These problems have been solved by the fact that each distance
member (16) comprises a distance tube projecting radially from the rotor (12) and
fixed at this, that said bearing device (17) for a pivot arm (18) extending therethrough
is detachably attached to the free end of the distance tube, said bearing device being
partly axially located in the distance tube, said paddle arm (19) being unrotatably
attachable to the end of the pivot arm (18) located outside the distance tube, while
a lever plate (25) is unrotatably eccentrically attached at the part (24) of the pivot
arm (18) located inside the distance tube, and at the bearing device (17) just opposite
the plate (25) a holder-on (26) being attached, and that between the plate and the
holder-on (26) there is arranged at least one resiliently compressible member (29)
in the form of a rubber block or the like.
|
|
