AP1664A - Shielding a bearing and seal assembly from undesirable matter. - Google Patents

Shielding a bearing and seal assembly from undesirable matter.

Info

Publication number
AP1664A
AP1664A APAP/P/2003/002835A AP2003002835A AP1664A AP 1664 A AP1664 A AP 1664A AP 2003002835 A AP2003002835 A AP 2003002835A AP 1664 A AP1664 A AP 1664A
Authority
AP
ARIPO
Prior art keywords
bearing
shaft
assembly
impeller
shield
Prior art date
Application number
APAP/P/2003/002835A
Other versions
AP2003002835A0 (en
Inventor
Siegfried Geldenhuys
Robert Denis Todd
Original Assignee
Weir Envirotech Pty Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weir Envirotech Pty Limited filed Critical Weir Envirotech Pty Limited
Publication of AP2003002835A0 publication Critical patent/AP2003002835A0/en
Application granted granted Critical
Publication of AP1664A publication Critical patent/AP1664A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/14—Shaft sealings operative only when pump is inoperative
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/12—Shaft sealings using sealing-rings
    • F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/445—Free-space packings with means for adjusting the clearance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Of Bearings (AREA)

Abstract

A rotary pump includes an impeller mounted on a shaft 12 supported for rotation in bearings. A bearing and bearing casing assembly 26 proximate the impeller is prone to ingress of undesirable matter. A shield assembly 40 includes the shaft 12 and a shield 40 rotatable with the shaft and positioned intermediate the impeller and the bearing assembly 26. The shield comprises an integral, moulded, disc 42 and composite rim 44, which includes a lip 50 having an inwardly proud beading 52 normally touching an outer periphery 34.1 of the bearing assembly. A cowl 48 surrounds the lip with clearance when the shaft 12 rotates. The beading 52 dilates under centrifugal force to provide running clearance.
APAP/P/2003/002835A 2002-08-21 2003-07-29 Shielding a bearing and seal assembly from undesirable matter. AP1664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA200206705 2002-08-21

Publications (2)

Publication Number Publication Date
AP2003002835A0 AP2003002835A0 (en) 2003-09-30
AP1664A true AP1664A (en) 2006-09-20

Family

ID=33098635

Family Applications (1)

Application Number Title Priority Date Filing Date
APAP/P/2003/002835A AP1664A (en) 2002-08-21 2003-07-29 Shielding a bearing and seal assembly from undesirable matter.

Country Status (1)

Country Link
AP (1) AP1664A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322458A1 (en) * 1973-05-04 1974-11-21 Zahnradfabrik Friedrichshafen SHAFT SEAL
JPH07332377A (en) * 1994-06-01 1995-12-22 Mutsubishi Gomme Kk Sealing device for bearing of rotating shaft

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2322458A1 (en) * 1973-05-04 1974-11-21 Zahnradfabrik Friedrichshafen SHAFT SEAL
JPH07332377A (en) * 1994-06-01 1995-12-22 Mutsubishi Gomme Kk Sealing device for bearing of rotating shaft

Also Published As

Publication number Publication date
AP2003002835A0 (en) 2003-09-30

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