PAD FOR ROLLER SUPPORT IN ROLLING MILL BED Russian patent published in 2017 - IPC B21B31/07 

FIELD: machine building.

SUBSTANCE: invention relates to pad, that is, supporting housing for supporting roller in rolling mill bed. It comprises primary opening to accommodate roller trunnion; lubricant supply line; lubricant drain; pumping unit for lubricant pumping, returning from pad through outlet; wherein this pump unit has housing, supply channel and discharge channel, wherein supply channel is interconnected with supply line, and discharge channel is with outlet in relation to lubricant flow direction; and wherein pump unit drive is carried out by lubricant flow in supply line. Pump unit has in its housing: screw pump, including pressure screw in discharge channel to force discharge returning lubricant; and turbine in supply channel, which drive is carried out by supplied lubricant pressure, for screw pump driving. Screw pump is made from tubular main part, on outer side of which discharge screw is located, housing has opening, whereby screw pump is supported in bearings with possibility of rotation, wherein space between main part external side and opening inner side forms discharge channel, wherein delivery screw enters into discharge channel for returning lubricant discharging; and wherein bearings, and also screw pump, by means of fasteners are fixed inside opening, but installed with possibility of rotation; discharging screw turn is inclined at acute angle, in direction of lubricant flow in drain, relative to tubular main part; fasteners are made in form of spoke wheels or perforated plates, which propagate, each, in plane perpendicular to opening longitudinal axis in housing, and on their periphery are connected, each, on opening inner side of holes with housing, and on their inner side, preferably coaxial to opening, bearings are installed on them for screw pump; and tubular main part inner area forms supply channel, whereby turbine is arranged and connected with main part without possibility of rotation.

EFFECT: disclosed invention enables to use pad with smaller cross section or, respectively, smaller radius of discharge opening in comparison with pads without pumping device disclosed by invention; in particular, when using pumping device disclosed by invention it is possible to completely get by without presence of second lubricant discharge opening.

8 cl, 5 dwg