Roller bearing lubrication system and method
AssigneeHeidelberger Druckmaschinen AG
InventorsGerald Roger Douillard, Eric Michael Lapine, Michael Robert Lemlin
Life of this patent
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Abstract
The bearing lubrication system for a cylinder in a printing machine pumps oil from the driving gear side to the roller bearing. The gear side has a gear box and an oil sump with a supply of lubricating oil. An oil loop connects the bearing housing with the gear box fluidically via dry quick disconnects. The dry disconnects allow quick removal of the printing machine cylinder for maintenance or for print job retrofitting. As the printing machine cylinder rotates (it is driven from the gear box), oil is pumped from the gear box into the bearing housing. The bearing is thus lubricated and cooled. The oil is discharged from the bearing housing and returned to the gear box sump.
Claims5
A bearing lubrication system in a printing machine, comprising:
- a roller bearing;
- a bearing housing substantially oil-tightly enclosing said bearing;
- a gear box having an oil sump with a supply of lubricating oil;
- a printing machine roller rotatably supported in said gear box and in said bearing;
- an oil loop fluidically connecting said gear box with said bearing for transporting oil from said gear box to said bearing and lubricating said bearing;
- and
- an oil pump connected in said oil loop for pumping the oil from said oil sump through said bearing and back to said oil sump;
- said bearing housing formed with an inlet and an outlet;
- and
- said oil loop including a feed line connected between said gear box and said inlet and a discharge line connected between said outlet and said gear box.
Dependencies are inferred from the claim text.