FIELD: machine building.
SUBSTANCE: proposed unit relates to responsible units used in machine building. In threaded connections using pins at operation under conditions of complex loading, there is considerable bending of the stud along the entire length, note here that maximum bending stresses correspond to cross section of threaded part that coincides with first coil where there is considerable concentration of stresses and which is destructed, first of all, in said joints. Within one connected part the pin has a cylindrical section of larger diameter, which is borne by the end part in the support surface of the cylindrical hole adjoining the nut, and on the side of the nut of the other connected part there is a hole of larger diameter, for installation of the cylindrical bushing, for the stud installation without a gap.
EFFECT: high strength and rigidity of the connection by reducing bending stresses under the threaded part, high uniformity of distribution of transverse load in the group threaded joint.
1 cl, 1 dwg
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