FIELD: ammunition.
SUBSTANCE: proposed chuck comprises body with holes and centring collar made at its first end face, cylindrical rods with lengthwise grooves, cams with inclined working surfaces, flange with taper hole, thrust centre with connection taper and two-arm lever. Holes are located symmetrically relative to axis of centring band. Cylindrical rods are coupled with body holes with possibility of axial movements. Two-arm lever is arranged on said rod to turn about axis perpendicular to rod lengthwise axis. Arms of the lever are coupled with longitudinal slots of stocks. Flange is fixed on the second end of the housing coaxially with its conical hole relative to the centring band. Thrust centre is conjugated with connecting cone with conical hole of flange. Cams are fixed on stocks with possibility of their inclined planes adjoining to conical surface of installed shaft.
EFFECT: simplification of the chuck by eliminating the sliders and radial grooves on the body and simplifying the design of the conversion mechanism.
1 cl, 2 dwg
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