WORKING CONSTRUCTION MACHINE Russian patent published in 2014 - IPC E21B7/02 E02F9/00 B66C23/62 

FIELD: construction.

SUBSTANCE: invention relates to construction, namely to the operating construction machine for excavation. Machine comprises carrier vehicle, mast and cable winch mounted on the carrier vehicle, which comprises a frame of winch and rope drum mounted therein with possibility of rotation around the rotation axis. Cable winch is mounted on the carrier vehicle with the possibility of rotation around the first pivot axis with the first hinge pin. The following is provided: at least one rotating cylinder by means of which the cable winch can be rotated around the first rotation axis, the first pivot pin produced with the possibility of disconnection to release the first pivot axis and at least one second pivot pin, mounted on the cable winch to form the second pivot axis, spaced from the first pivot axis. Cable winch is designed with the possibility of rotation by means of the rotating cylinder around the second pivot axis, extending transversely to the rotation axis of the cable winch.

EFFECT: hinged rotation of the cable winch around two specified different pivot axes is provided.

10 cl, 8 dwg