RUNNING BEAM OF GANTRY CRANE Russian patent published in 2023 - IPC B66C9/00 

FIELD: lifting and transport engineering.

SUBSTANCE: invention relates to lifting and transport engineering, namely to running beams of gantry cranes. The running beam of the gantry crane contains metal structure (1) resting against brackets (2) attached to lower belt (3) of metal structure (1). On axes (4), balancers (5) are installed, in which flangeless running wheels (6) are installed with shafts (7) mounted in bearing units, at least one of which is kinematically connected to drive mechanism (8). Balancers (5) are equipped with a combination of guiding rollers (9) installed at ends of balancers (5) with flanges (10) embracing them from different sides of head (11) of under-crane rails (12) of an under-crane track. Middle part (13) of each guiding roller (9) is placed above the head of under-crane rail (12) with a gap Δ1 eliminating a possibility of its touching the head of rail (11) on the entire track of crane movement. Flanges (10) of guiding roller (9) embrace the head of under-crane rail (12) from different sides with a gap Δ between a side surface of flanges (10) and a side surface of the head of under-crane rails (12), a value of which is selected taking into account a condition of prevention of jamming of the running beam during the movement of the gantry crane.

EFFECT: reduction in labor costs related to the manufacture of flangeless running wheels is provided, the need for entire replacement of running wheels with worn flanges is eliminated, a service life of guiding rollers with flanges is increased due to a possibility of their reinstallation on axes.

4 cl, 6 dwg