US2434018A - Adjusting and holding device - Google Patents

Adjusting and holding device Download PDF

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Publication number
US2434018A
US2434018A US648661A US64866146A US2434018A US 2434018 A US2434018 A US 2434018A US 648661 A US648661 A US 648661A US 64866146 A US64866146 A US 64866146A US 2434018 A US2434018 A US 2434018A
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United States
Prior art keywords
impeller
shaft
holder
members
adjusting
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Expired - Lifetime
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US648661A
Inventor
Alexey J Stepanoff
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Ingersoll Rand Co
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Ingersoll Rand Co
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Publication date
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Priority to US648661A priority Critical patent/US2434018A/en
Application granted granted Critical
Publication of US2434018A publication Critical patent/US2434018A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F04D29/18—Rotors
    • F04D29/20—Mounting rotors on shafts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/901—Drilled well-type pump
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32426—Plural distinct positions

Definitions

  • This invention relates to centrifugal machines, as for example pumps, blowers, or the like, and more particularly to a device for adjusting and holding an impeller on a shaft.
  • One object of the invention is to facilitate the operation of placing an impeller in the correct assembled position on a shaft.
  • a further object is to enable an impeller to be conveniently and expeditiously adjusted axially of the shaft in order to assure the correct positioning of the impeller within the chamber containing it.
  • Figure 1 is an. elevation of a portion of a centrifugal pump of the vertical type having the invention applied thereto,
  • Figure 2 is a transverse view taken through Figure 1 on the line 22 looking in the direction indicated by the arrows, and
  • FIGS 3 and 4 are perspective views of details of the invention.
  • 20 designates a portion of a centrifugal pump comprising a casing 21, an impeller 22 therein, and a shaft 23 for the impeller.
  • the impeller 22 is of the open type and in its hub 24 is a bore 25 having a nice sliding fit on the shaft 23, and in the bore is a slot 26 for sliding engagement with a key 21 seated in the shaft 23.
  • the impeller is thus restrained against rotary movement with respect to the shaft but is capable of movement endwise thereof.
  • Such movement is imparted to the impeller by the adjusting and holding device designated in its entirety by 28 and which, constructed according to the invention, comprises a holder 29 in the form of a circular plate that overlies the end of the hub 24 and is split longitudinally to divide it into two symmetrical members 30.
  • the diameter of the holder may, as illustrated, approximate that of the hub 24, and in the opposed surfaces of the members 30 are recesses 3
  • the end surfaces of the members 30 seat against the adjacent ends of the groove 33, and on the side of the members 30 confronting the impeller22 are partly circular extensions 34 that extend part way into the hub 24 and are engaged thereby for re- 2 taining the said members 30 in the annular groov 33.
  • the portion of the holder 29 overlying the hub 24- is spaced therefrom a suitable distance to permit of movement of the impeller toward the holder, if required to place the impeller in the correct assembled position.
  • Threaded apertures 35 there being one in each of the members 30, for the accommodation of screws 36 that are adjustable endwise of the shaft 23 and have fiatted end surfaces 3'! to serve as abutments for the adjacent end surface 33 of the hub 24.
  • Each member 30 also has a pair of holes 39 to receive screws 40 that are threaded into sockets 4! in the hub 24 and serve to draw the hub firmly against the end surfaces 31 of the screws 36.
  • the members 30 are first placed in the annular groove 33 and the impeller is then positioned in such wise that the end of the hub will encircle at least the free-end portions of the extensions 34. Thereafter, the screws 36 and 40 are manipulated to respectively determine the position for the impeller on the shaft and to hold the impeller against the ends of the screws 36.
  • a shaft In a holding and adjusting device, a shaft, an impeller on the shaft, a holder on the shaft, means carried by the holder for effecting adjustment of the impeller axially of the shaft, and means on the holder cooperating with the impeller for retaining the holder on the shaft during all adjusted positions of the impeller.
  • a shaft In a holding and adjusting device, a shaft, an impeller on the shaft, a holder interlockingly connected with the shaft to prevent relative endwise movement and comprising a plurality of members, means on the members in telescopic engagement with the impeller to retain the members in the correct assembled relationship with each other, and means carried by the holder for adjusting the impeller axially of the shaft to a desired position and to hold the impeller firmly in such position.
  • a shaft having an external annular groove, an impeller on the shaft, a holder seated in the annular groove comprising a plurality of members, means on the members extending into the impeller for retaining the members in the groove, and means carried by the holder for adjusting the impeller axially of the shaft to a desired position and to hold the impeller firmly in such position.
  • a shaft In a holding and adjusting device, a shaft, an impeller 0n the shaft, a holder interlockingly connected with the shaft to prevent relative endwise movement and comprising a plurality of members, means on the members to cooperate with the impeller for retaining the members on the shaft and in the correct assembled relation ship with each other, screws in the holder extending longitudinally of the shaft to serve as adjust- 4 able abutments for the impeller, and other screws in the holder in threaded engagement with the impeller for drawing the impeller firmly against the abutments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Jan. 6, 1948.
A. J. STEPANOFF ADJUSTING AND HOLDING DEVICE Filed Feb. 19, 1946 mvENTbi? HI 5 ATI'ORNEY- Patented Jan. 6, 1348 UNITED STATES PATENT OFFICE me V Alexey- ,1. Stepanolf, Phillipsb u1;g, N. 5,, assignor tolngcrsoll Rand "Company, New ijork, Y'.,
acorimoratiomofiNew Jersey Application February 19, 1946, Serial No. 648,661
4 Claims.
This invention relates to centrifugal machines, as for example pumps, blowers, or the like, and more particularly to a device for adjusting and holding an impeller on a shaft.
One object of the invention is to facilitate the operation of placing an impeller in the correct assembled position on a shaft.
A further object is to enable an impeller to be conveniently and expeditiously adjusted axially of the shaft in order to assure the correct positioning of the impeller within the chamber containing it.
Other objects will be in part obvious and in part pointed out hereinafter.
In the drawings accompanying this specification and in which similar reference numerals refer to similar parts,
Figure 1 is an. elevation of a portion of a centrifugal pump of the vertical type having the invention applied thereto,
Figure 2 is a transverse view taken through Figure 1 on the line 22 looking in the direction indicated by the arrows, and
Figures 3 and 4 are perspective views of details of the invention.
Referring more particularly to the drawings, 20 designates a portion of a centrifugal pump comprising a casing 21, an impeller 22 therein, and a shaft 23 for the impeller.
The impeller 22 is of the open type and in its hub 24 is a bore 25 having a nice sliding fit on the shaft 23, and in the bore is a slot 26 for sliding engagement with a key 21 seated in the shaft 23.
The impeller, as will be readily understood, is thus restrained against rotary movement with respect to the shaft but is capable of movement endwise thereof. Such movement is imparted to the impeller by the adjusting and holding device designated in its entirety by 28 and which, constructed according to the invention, comprisesa holder 29 in the form of a circular plate that overlies the end of the hub 24 and is split longitudinally to divide it into two symmetrical members 30.
The diameter of the holder may, as illustrated, approximate that of the hub 24, and in the opposed surfaces of the members 30 are recesses 3| to accommodate a reduced portion 32, of the shaft, defined by an annular groove 33. The end surfaces of the members 30 seat against the adjacent ends of the groove 33, and on the side of the members 30 confronting the impeller22 are partly circular extensions 34 that extend part way into the hub 24 and are engaged thereby for re- 2 taining the said members 30 in the annular groov 33.
The portion of the holder 29 overlying the hub 24- is spaced therefrom a suitable distance to permit of movement of the impeller toward the holder, if required to place the impeller in the correct assembled position. In diametrically opposed portions of the holder are threaded apertures 35, there being one in each of the members 30, for the accommodation of screws 36 that are adjustable endwise of the shaft 23 and have fiatted end surfaces 3'! to serve as abutments for the adjacent end surface 33 of the hub 24. Each member 30 also has a pair of holes 39 to receive screws 40 that are threaded into sockets 4! in the hub 24 and serve to draw the hub firmly against the end surfaces 31 of the screws 36.
In practice, whenever it is intended to assemble the holder and the impeller on the shaft, the members 30 are first placed in the annular groove 33 and the impeller is then positioned in such wise that the end of the hub will encircle at least the free-end portions of the extensions 34. Thereafter, the screws 36 and 40 are manipulated to respectively determine the position for the impeller on the shaft and to hold the impeller against the ends of the screws 36.
These adjustments will, of course, be made with a view toward placing the impeller in the correct position within the impeller chamber to establish the degree of clearance required between the open side of the impeller and the adjacent wall of the casing for the attainment of maximum efficiency of the pump.
I claim: a
1. In a holding and adjusting device, a shaft, an impeller on the shaft, a holder on the shaft, means carried by the holder for effecting adjustment of the impeller axially of the shaft, and means on the holder cooperating with the impeller for retaining the holder on the shaft during all adjusted positions of the impeller.
2. In a holding and adjusting device, a shaft, an impeller on the shaft, a holder interlockingly connected with the shaft to prevent relative endwise movement and comprising a plurality of members, means on the members in telescopic engagement with the impeller to retain the members in the correct assembled relationship with each other, and means carried by the holder for adjusting the impeller axially of the shaft to a desired position and to hold the impeller firmly in such position.
3. In a holding and adjusting device, a shaft having an external annular groove, an impeller on the shaft, a holder seated in the annular groove comprising a plurality of members, means on the members extending into the impeller for retaining the members in the groove, and means carried by the holder for adjusting the impeller axially of the shaft to a desired position and to hold the impeller firmly in such position.
4. In a holding and adjusting device, a shaft, an impeller 0n the shaft, a holder interlockingly connected with the shaft to prevent relative endwise movement and comprising a plurality of members, means on the members to cooperate with the impeller for retaining the members on the shaft and in the correct assembled relation ship with each other, screws in the holder extending longitudinally of the shaft to serve as adjust- 4 able abutments for the impeller, and other screws in the holder in threaded engagement with the impeller for drawing the impeller firmly against the abutments.
ALEXEY J. STEPANOFF.
REFERENCES CITED 7 The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,378,091 Carlsen May 17, 1921 2,278,625 Traylor et a1 Apr. 7, 1942 2,378,974 Bower June 26, 1945 2,407,348 Schott Sept. 10, 1946
US648661A 1946-02-19 1946-02-19 Adjusting and holding device Expired - Lifetime US2434018A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480222A (en) * 1947-12-30 1949-08-30 Int Harvester Co Adjustable v-belt pulley
US3005646A (en) * 1952-01-07 1961-10-24 North American Aviation Inc Means for spaced alignment
US3010402A (en) * 1959-03-09 1961-11-28 Krogh Pump Company Open-case pump
US4006997A (en) * 1972-11-06 1977-02-08 Compagnie Industrielle Des Telecommunications Cit-Alcatel Supersonic centrifugal compressors
US4386886A (en) * 1980-04-14 1983-06-07 Buffalo Forge Company Adjustable vortex pump
US4661044A (en) * 1985-05-24 1987-04-28 Goulds Pumps, Incorporated Pump having a bushing removal mechanism
US4674953A (en) * 1984-02-28 1987-06-23 Kabushiki Kaisha Toshiba Multistage hydraulic machines
US5807070A (en) * 1995-10-12 1998-09-15 Bmw Rolls-Royce Gmbh Bearing arrangement for the rotor of a radial or diagonal flow compressor
US5951244A (en) * 1998-01-27 1999-09-14 Knight, Sr.; Michael J. Impeller clearance adjustment system
DE19844828B4 (en) * 1998-01-15 2006-11-16 Giorgio Badia Polesine Casarotto Coupling system between a shaft and a hollow blind member in particular for planetary gear
US20080292395A1 (en) * 2005-09-09 2008-11-27 Chun Victor L Guide pin with flange assembled from annular pieces and outer ring
US20090035057A1 (en) * 2007-07-12 2009-02-05 Chun Victor L Flangeless demountable pin system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1378091A (en) * 1920-04-12 1921-05-17 Einar F Carlsen Shaft-coupling
US2278625A (en) * 1941-01-03 1942-04-07 Traylor Engineering And Mfg Co Suspension for crusher shafts
US2378974A (en) * 1944-08-01 1945-06-26 Fairbanks Morse & Co Mounting means for pump impellers and the like
US2407348A (en) * 1943-12-22 1946-09-10 Fairbanks Morse & Co Impeller mounting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1378091A (en) * 1920-04-12 1921-05-17 Einar F Carlsen Shaft-coupling
US2278625A (en) * 1941-01-03 1942-04-07 Traylor Engineering And Mfg Co Suspension for crusher shafts
US2407348A (en) * 1943-12-22 1946-09-10 Fairbanks Morse & Co Impeller mounting
US2378974A (en) * 1944-08-01 1945-06-26 Fairbanks Morse & Co Mounting means for pump impellers and the like

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480222A (en) * 1947-12-30 1949-08-30 Int Harvester Co Adjustable v-belt pulley
US3005646A (en) * 1952-01-07 1961-10-24 North American Aviation Inc Means for spaced alignment
US3010402A (en) * 1959-03-09 1961-11-28 Krogh Pump Company Open-case pump
US4006997A (en) * 1972-11-06 1977-02-08 Compagnie Industrielle Des Telecommunications Cit-Alcatel Supersonic centrifugal compressors
US4386886A (en) * 1980-04-14 1983-06-07 Buffalo Forge Company Adjustable vortex pump
US4674953A (en) * 1984-02-28 1987-06-23 Kabushiki Kaisha Toshiba Multistage hydraulic machines
US4661044A (en) * 1985-05-24 1987-04-28 Goulds Pumps, Incorporated Pump having a bushing removal mechanism
US5807070A (en) * 1995-10-12 1998-09-15 Bmw Rolls-Royce Gmbh Bearing arrangement for the rotor of a radial or diagonal flow compressor
DE19844828B4 (en) * 1998-01-15 2006-11-16 Giorgio Badia Polesine Casarotto Coupling system between a shaft and a hollow blind member in particular for planetary gear
US5951244A (en) * 1998-01-27 1999-09-14 Knight, Sr.; Michael J. Impeller clearance adjustment system
US20080292395A1 (en) * 2005-09-09 2008-11-27 Chun Victor L Guide pin with flange assembled from annular pieces and outer ring
US20090035057A1 (en) * 2007-07-12 2009-02-05 Chun Victor L Flangeless demountable pin system
EP2112385A3 (en) * 2008-04-25 2010-08-25 Danly IEM, LLC Guide pin with flange assembled from annular pieces and outer ring

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