THREADED CONNECTION OF PARTS OF POWER MACHINES Russian patent published in 2019 - IPC F16B37/00 

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, at that maximum bending stresses fall on the section of the threaded part, which coincides with the first coil, where there are significant stress concentrations, and which is destructed, first of all, in said compounds. Within the limits of one connected part, the pin has a conical section, with its larger base directed towards the nut, and in the other part there is an opening for installation of the cylindrical bushing for fitting the stud without a gap, which goes to a cylindrical bore of smaller diameter adjoining the split plane.

EFFECT: high strength of the connection by reducing bending stresses under the threaded part, high uniformity of distribution of transverse load in the group threaded connection, high stiffness of the connection in shear.

1 cl, 1 dwg