IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0877972
(2004-06-28)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
6 |
초록
▼
A lubrication system for equipment (e.g. centrifugal pump) employing a rotating shaft and corresponding support bearings is disclosed. The lubrication system includes a lubricant dispenser having a plurality of blades or dispensing members pivotally attached thereto, the dispenser affixed to the sha
A lubrication system for equipment (e.g. centrifugal pump) employing a rotating shaft and corresponding support bearings is disclosed. The lubrication system includes a lubricant dispenser having a plurality of blades or dispensing members pivotally attached thereto, the dispenser affixed to the shaft for rotation therewith. Centrifugal force created by rotation of the shaft to which the dispensing blades are attached causes the blades to extend radially outward from the shaft center during operation so as to dispense the lubricant throughout a lubricating or misting chamber in order to lubricate the adjacent bearings. The system is also advantageous in that the blades are permitted to pivot or flap downward toward the shaft in either direction so that the dispenser may be more easily inserted into the misting chamber during manufacturing of the device or replacement of the lubricating system. In such a manner, a lubricant dispenser is provided that has an operating outer diameter that slices cleanly through the lubricating fluid to avoid excessive splashing and spraying of the fluid. This also allows the lubricant fluid level in the misting chamber to be lowered if desired so as to reduce heat generation during operation without overly splashing or spraying lubricant.
대표청구항
▼
I claim: 1. A centrifugal pump for pumping a liquid to be pumped, the pump comprising: a pump housing; a rotatable shaft disposed at least partially within said housing, said shaft defining a rotational axis; a lubrication chamber surrounding said shaft, said chamber for housing a lubricating flu
I claim: 1. A centrifugal pump for pumping a liquid to be pumped, the pump comprising: a pump housing; a rotatable shaft disposed at least partially within said housing, said shaft defining a rotational axis; a lubrication chamber surrounding said shaft, said chamber for housing a lubricating fluid; shaft support bearings disposed in or adjacent said lubrication chamber, said bearings to be lubricated by the lubricating fluid; a dispenser including a base support member and a plurality of collapsible dispensing members pivotally attached thereto, said dispenser being attached to said shaft for rotation therewith and for dispensing the lubricating fluid in said chamber in order to lubricate said bearings; wherein said collapsible dispensing members are pivotally attached to said support member so that said dispensing members can collapse axially along said shaft when said shaft is not rotating thereby enabling said dispenser to be more easily inserted into said chamber during the manufacture of said pump or during maintenance being performed thereon; and wherein said dispensing members include an arcuate oil-engaging edge oriented to engage said lubricating fluid at a dispensing location between opposite terminal ends of said arcuate oil-engaging edge. 2. The centrifugal pump of claim 1, wherein said arcuate oil- engaging edge of said dispensing members is disposed on each said dispensing members. 3. The centrifugal pump of claim 1, wherein said arcuate oil- engaging edge has a radius of curvature that is less than a distance from said leading edge to said rotational axis. 4. The centrifugal pump of claim 1, wherein said arcuate oil- engaging edge is further from said rotational axis than said terminal ends. 5. The centrifugal pump of claim 1, wherein said dispensing members are pivotally attached to said dispenser so that centrifugal force created by rotation of said shaft during operation of the pump causes said dispensing members to extend radially relative to said shaft during pump operation thereby enabling said dispensing members to dispense the lubricating fluid in said chamber. 6. The centrifugal pump of claim 2, wherein said dispenser further includes an elongated band member encircling said shaft. 7. The centrifugal pump of claim 6, further comprising an insert spring providing a friction-fit engagement of said support member with respect to said band member. 8. The centrifugal pump of claim 6, wherein said band member passes through said support member. 9. The centrifugal pump of claim 7, wherein a support shaft passes through said support member, said insert spring, and said dispensing members. 10. The centrifugal pump of claim 1, wherein said support member includes a plurality of projections which extend radially away or outward from said shaft, said projections receiving a support shaft, wherein said collapsible members are pivotally attached to said support shaft. 11. A method of inserting a lubricant dispenser into a misting chamber of a pump, the method comprising the steps of: providing a pump including a misting chamber therein, said pump including a bore adjacent said misting chamber through which the lubricant dispenser is to be inserted along with a shaft; providing a lubricant dispenser having a plurality of collapsible or bendable dispensing members pivotally attached around the outer periphery thereof to disperse a lubricating fluid; collapsing or bending said dispensing members prior to insertion of said dispenser into said chamber; inserting said dispenser with collapsed dispensing members through said bore and into said misting chamber along with said shaft; orienting said dispensing members such that an arcuate oil-engaging edge is oriented to engage said lubricating fluid at a location between opposite terminal ends of said arcuate oil-engaging edge; and operating said pump so that centrifugal force created by rotation of a pump shaft to which said dispenser is attached causes said dispensing members to extend radially outward from said shaft in order to dispense lubricant throughout said misting chamber. 12. The method of claim 11, wherein said at least one of said dispensing members comprises a plurality of breakable or separable tabs defining different outer radial edges. 13. A pump comprising: a rotatable pump shaft adapted to be rotated in order to drive a fluid pumping impeller so as to pump a fluid to be pumped; a misting chamber surrounding said shaft; bearings located within or adjacent said misting chamber, said bearings to be lubricated by lubricant within said misting chamber; a lubricant dispenser affixed to said shaft for rotation therewith and located within said misting chamber, said lubricant dispenser for dispensing lubricant in said misting chamber in order to lubricate said bearings; wherein said lubricant dispenser includes a plurality of collapsible or bendable lubricant dispensing members attached thereto, said dispensing members for extending radially relative to said shaft when said shaft is rotated thereby dispensing lubricant in said chamber in order to lubricate said bearings; and wherein at least one of said dispensing members comprises a an outer radial edge having a selectively adjustable radial length whereby said at least one of said dispensing members comprises a plurality of breakable or separable tabs defining different outer radial edges. 14. The pump of claim 13, wherein said at least one of said dispensing members comprises a plurality of breakable or separable tabs defining different outer radial edges. 15. A centrifugal pump having an adjustable bearing frame lubrication system for use in a lubrication chamber of the pump, the pump comprising: said lubrication chamber located proximate bearings to be lubricated by lubricant in said chamber; said bearings including at least one stationary annular bearing frame having an inner diameter defined by the inner periphery of said bearing frame; an adjustable lubricant dispenser adapted to be attached to a pump shaft in said chamber for rotation therewith, said dispenser having a first outer diameter defined when said dispenser is in a first state for use during insertion of said dispenser through a bore and into said chamber, and a second diameter defined when said dispenser is in its second or operating state; and a mounting assembly mounting said dispenser on said pump shaft, said mounting assembly comprising at least one u-shaped vane holder and at least one support shaft, a band member circumscribing said pump shaft, said band member passing through said vane holder, wherein said support shaft passes through said vane holder and said dispenser to define a pivot axis along an axis of said support shaft. 16. The centrifugal pump according to claim 15, further comprising a band member circumscribing said pump shaft, said band member passing through said vane holder. 17. The centrifugal pump according to claim 16 15, further comprising an insert spring creating a friction fit between said vane holder and said band member. 18. The centrifugal pump of claim 1, wherein said oil-engaging edge is arcuate. 19. The centrifugal pump of claim 1, wherein said oil-engaging edge is curved. 20. The method of claim 11, wherein said oil-engaging edge is arcuate. 21. The method of claim 11, wherein said oil-engaging edge is curved.
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