FIELD: disintegrators and crushing devices.
SUBSTANCE: group of inventions refers to crusher feeders for the mining industry. System with a tooth contains a holder and an assembly with a tooth. Holder has the first end and the second end, in which an opening is formed extending between the first end and the second end along the longitudinal axis, herewith the opening surface being conical and the diameter of the opening near the first end being greater than the diameter of the opening near the second end. Moreover, the surface of the opening forms an angle between 0.5 degrees up to 10 degrees with respect to the longitudinal axis. Tooth assembly includes an axle inserted into the holder opening along the longitudinal axis, herewith the axle being conical in order to match the opening.
EFFECT: preventing the concentration of stresses around the end of the holder, reducing the probability of shear failure.
19 cl, 6 dwg
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