VERTICAL GUIDE BEARING IMPROVEMENTS

摘要

A vertical radial guide bearing of fixed circular bore construction surrounds a journal attached firmly to a rotating shaft, is lubricated via pot lubrication means, has a bearing bore surface that is shaped to include viscosity oil pumps that are situated below the surface of the oil in the pot, are adjacent the bottom of the bearing, have associated supply ports remote from the journal, and have associated discharge grooves that extend vertically up the bearing bore surface to a circumferential groove adjacent the top of the bearing, wherein the viscosity oil pumps are sized to pump oil quickly up the grooves so as to develop an oil film between the journal and bearing surfaces, this film generated by normal hydro-dynamic action having sufficient pressure and thickness to rapidly separate the journal and bearing surfaces and to keep them separated.

主权项

1. A vertical radial guide bearing that surrounds a journal of a vertical shaft-line, has a close clearance between journal and bearing, and is lubricated by a pot lubrication method wherein the surface of the oil in the pot only partially floods the bearing from bottom to top, said bearing having a surface of the bore that has a viscosity oil pump comprising a shallow slot or groove in the surface of the bearing bore adjacent the bottom of the bearing, said viscosity oil pump being located entirely below the surface of the oil in the pot and having an associated oil supply port within the bearing body of the bearing and a discharge groove extending from the shallow slot or groove vertically upward across the bearing surface until it reaches a circumferential groove adjacent the top of the bearing, the number and size of said viscosity oil pumps being adequate to quickly lubricate the journal and bearing surfaces after start-up with rotation in the primary direction of journal rotation thereby permitting a full oil film to develop rapidly with adequate pressure and film thickness by means of normal hydro-dynamic action sufficient to separate and to keep separated the journal from the bearing and to provide excess oil to pass through drain holes from the circumferential groove adjacent the top of the bearing to the outside of the bearing, said drain holes being of sufficient size and quantity to permit the drain oil to flow in a relatively unrestricted manner, said drain oil flowing into the oil reservoir retained in the pot and subsequently flowing over cooling coils and returning to an entrance of a supply port to the viscosity oil pump for primary rotation direction, thereby permitting oil to recirculate through the journal bearing again and again.