| 摘要 |
<p>A pump including a pump shaft bearing lubrication system having a main lubrication chamber and a pair of auxiliary lubrication chambers, the auxiliary chambers being disposed on opposite sides of said main chamber. Pump shaft bearing assemblies (single or double row) are sandwiched between each auxiliary lubrication chamber and the main chamber so that each bearing assembly has its inner and outer sides simultaneously lubricated by fluid in the main and corresponding auxiliary chamber respectively. Each auxiliary lubrication chamber is provided with a pair of fluid passageways interfacing the auxiliary and main chambers so that the lubricating fluid can be circulated from the main chamber to the auxiliary chambers and then back into the main chamber again, thereby constantly lubricating the bearing assemblies with cool, clean, and effective lubricating fluid. Furthermore, a lubricating fluid dispenser is mounted on the pump shaft within the main chamber, the dispenser being positioned entirely above the lubricating fluid level such that heat generation within the main chamber is reduced, the dispenser dispersing the lubricant throughout the main chamber by way of an air-flow created by vanes defined in the dispenser. This design also allows the lubricating fluid level within the main chamber to be maintained below the moveable portions (i.e. bearing balls and rotating frame portion) of the shaft bearing assemblies so that the bearings run at lower temperature thereby extending the working life of the bearing assemblies.</p> |
