FIELD: mechanical engineering.
SUBSTANCE: invention relates to the field of general and transport machine building. Locking device of bolted connection of flange parts contains removable perforated locking element in contact with faces of heads of at least a pair of coupling bolts of flange connection, flange parts. Retaining (locking) element is made disc and installed coaxially to flange parts, with axial and radial fixation relative to the latter, with said simultaneous contact with faces of heads of all coupling bolts of flange connection by its cylindrical surface at orientation of these faces along tangents to cylindrical surface of disk retaining (locking) element, thus providing diameter d of retaining (locking) element in the form of disk.
EFFECT: improved technical and operational characteristics of the retaining (locking) device.
4 cl, 7 dwg
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