Linear bearing plate for rolling mill
A linear bearing plate, or liner, for use within a rolling mill stand, said liner including lubrication ports in fluid communication with a lubrication source. A centralized lubrication source can provide a predetermined lubrication to a plurality of mill stands in response to a signal, such as from a rolling facility operator. Lubrication ports provide areas of active lubrication which are surrounded by areas of passive lubrication so as to provide adequate lubrication during a rolling campaign.
1. A linear plate of a bearing assembly for a rolling mill, said linear plate comprising:
a generally planar bearing plate having a support surface attached to a planar support surface of a housing of a mill stand and having a bearing surface opposite the support surface which engages a movable bearing surface of the mill stand during operation, said bearing plate attached to said mill stand by a plurality of fasteners passing through apertures in the bearing plate, with said apertures extending through the bearing plate from the support surface to the bearing surface, with said plurality of fasteners fixing the position of the plate relative to the support surface of the mill stand housing during said operation; and
a plurality of stationary lubrication conduits defined by channels in the support surface of the bearing plate and the support surface of the housing, said plurality of lubrication conduits providing fluid communication between at least one outlet port to the bearing surface of the bearing plate and a lubricant inlet port positioned on a side of the bearing plate between the support surface and the bearing surface, whereby pressurized lubricant is introduced into the lubricant inlet port, passes through the plurality of lubrication conduits and is expelled out of the at least one outlet port to provide lubrication between the stationary bearing surface of the bearing plate and the movable bearing surface of the mill stand during a rolling campaign.
2. The linear plate of claim 1 wherein the bearing plate is secured to the mill stand via a plurality of threaded fasteners passing through the apertures of the bearing plate.
3. The linear plate of claim 1 further comprising:
a sensor conduit extending within the bearing plate, said sensor conduit being defined by a channel in the support surface of the bearing plate and the support surface of the mill stand housing.
4. The linear plate of claim 3 wherein the sensor conduit extends between a connector positioned at the side of the bearing plate between the support surface and the bearing surface and a sensor received within the plate.
5. The linear plate of claim 1 wherein a lubricant source provides for centralized lubrication of a plurality of mill stands.
6. The linear plate of claim 5 wherein the lubricant source includes a plurality of different lubricants, with different lubricants being distributed to different mill stands within a facility.
7. The linear plate of claim 1 wherein the at least one outlet port is connected to at least one lubricant cup open to the bearing surface of the bearing plate.
8. The linear plate of claim 7 wherein the at least one lubricant cup is generally cylindrical in form and extends from the bearing surface toward the support surface of the bearing plate.
9. A rolling facility comprising:
a plurality of mill stands, with each mill stand having at least one roll supported by a plurality of planar bearing plates, with each planar bearing plate having a bearing surface adapted to engage a movable surface of a roll stand component during a rolling operation, with each planar bearing plate having a support surface opposite the bearing surface which is secured against a support surface of a mill stand housing, with a plurality of fasteners passing through apertures in the bearing plate for fixing the position of the bearing plate relative to the support surface of the mill stand, and said bearing plate having a plurality of internal conduits providing fluid communication between at least one outlet port to the bearing surface and at least one lubricant inlet port positioned on a side of the bearing plate between the bearing surface and the support surface, with each of the plurality of conduits defined by a channel in the support surface of the bearing plate enclosed by the support surface of the mill stand.
10. The rolling facility of claim 9 further comprising:
a lubricant source and a plurality of external conduits in fluid communication with the lubricant source and the inlet port of the bearing plate; and
at least one control device for selectively controlling a flow of pressurized lubricant through one or more of the plurality of external conduits and the internal conduits of the planar bearing plate, said pressurized lubricant being expelled out of the at least one port to provide lubrication between the bearing surface and the movable surface of the roll stand component.
11. The rolling facility of claim 9 further comprising:
a pump for pressurizing the lubricant.
12. The rolling facility of claim 11 wherein the pump and the at least one control device is controlled via a mill stand controller.
13. The rolling facility of claim 9 wherein the lubricant source is a centralized lubricant source.
14. The rolling facility of claim 9 wherein the lubricant source includes a plurality of different lubricants, with different lubricants being distributed to different mill stands within a facility.
15. The rolling facility of claim 9 further comprising:
a sensor conduit defined between a channel in the support surface of the bearing plate and the support surface of the mill stand housing.
16. The rolling facility of claim 15 wherein the sensor conduit extends between a connector positioned at the side of the bearing plate between the support surface and the bearing surface and a sensor received within the bearing plate.