SU381437A1 - DEVICE FOR FEEDING LUBRICATION TO THE ROLLED STRIP DEFORMATION AREA - Google Patents

Description

one

The invention relates to rolling production and can be used, in particular, in cold rolled strip steel.

Apparatus for supplying lubricant to a deformation zone in a rolled strip, including rolls, are known.

In order to create high pressure of the lubricant, wedge-shaped inserts are placed in the throat between the rollers and the rolled strip in front of the deformation zone, ending in sharp rolls forming from the inlet side of the rolls and forming gaps in the rolls and lubricant. In order to be simplified, the insert designs can be fixed on the segment cushions that cover the roll barrels.

This ensures that the lubricant is supplied to the deformation zone by two converging streams with an increase in the lubricant pressure due to its inflow into the gap gaps by rotating rollers and a moving strip. Admission to the deformation center of the lubricant under high pressure during rolling provides conditions close to the conditions of hydrodynamic friction, which reduces the rolling force and reduces the wear of the rolls.

FIG. 1 shows the proposed device, cross-section; on fi g. 2 - section along A-A in FIG. one.

The device contains work rolls 1, pods 2, rolled strip 3 and adjustable chokes 4, 5 6.

The pillows 2 have holes for supplying lubricant to the groove. (Pocket-1-accumulator lubricant) 7-10. In the shed of the rolls, on the side of the entrance of the strip to the rolls, the replaceable inserts // (of antifriction material or with an anti-friction coating) of the underlays end in pointed edges.

On the exit side of the strip of rolls, similar inserts end with blunted edges.

The lubricant is supplied to the deformation zone by means of the proposed device as follows.

Under some small pressure, the lubricant comes from the common pipe to the grooves 7 and 8. The lubricant pressure in these grooves is less than the common line, and is regulated by the throttle 5. When the rollers / are rotated and the strip 3 moves in the direction of rolling, the lubricant moves the strip and the rollers into the slotted the gaps between the insert and the strip, and the insert and rolls. The effect of injecting lubricant into the deformation region creates a hydrostatic pressure back-up, gradually increasing to the entrance to the deformation zone.

The lubrication pressure in the deformation zone is controlled by means of 5 n 6 chokes. Throttle 4 regulates the vertical force that pushes the rollers from the idler.

Subject invention

Claims (2)

1. A device for supplying lubricant to the zone of deformation of the rolled poles, comprising rollers, characterized in that, in order to create a high pressure of lubricant in front of wedge-shaped inserts are located in the throat between the rolled strip and the rolls, ending at the entrance of the strip into the rolls with sharp edges and forming slotted gaps with working rolls and strip connected to the source of lubricant. 2. A device according to claim 1, characterized in that, in order to simplify the construction, the inserts are fixed on segmental cushions which cover the roll barrels.