LIFTING UNIT FOR SWINGING CIRCLE OF EXCAVATOR

摘要

FIELD: mechanics. ^ SUBSTANCE: lifting unit is comprised of lifting mechanisms, each of which is connected with pressurising source (oil station). Besides each lifting mechanism is represented as telescopic body with extending section being implemented on external surface and provided with guiding grooves. The solid keys are installed as a counterpart in the fixed section of body so that they can be self-adjusted. A jack is installed on spherical support inside extending section. The jack rod is coupled with the upper part of extending section through the spherical support. Floating support interacting with swinging circle is installed on the same spherical support. ^ EFFECT: improved reliability and extended lifecycle of lifting unit operation. ^ 3 dwg