US3614039A - Device for automatically adjusting the effective length of a stay or support - Google Patents

Device for automatically adjusting the effective length of a stay or support Download PDF

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Publication number
US3614039A
US3614039A US820458A US3614039DA US3614039A US 3614039 A US3614039 A US 3614039A US 820458 A US820458 A US 820458A US 3614039D A US3614039D A US 3614039DA US 3614039 A US3614039 A US 3614039A
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US
United States
Prior art keywords
compensator
stay
support
automatically adjusting
effective length
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US820458A
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English (en)
Inventor
Lars Arvid Norberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Stal AB
Original Assignee
Stal Laval Turbin AB
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 Stal Laval Turbin AB filed Critical Stal Laval Turbin AB
Application granted granted Critical
Publication of US3614039A publication Critical patent/US3614039A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
    • 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
    • Y10S248/00—Supports
    • Y10S248/901—Support having temperature or pressure responsive feature

Definitions

  • F161 35/00 compensator, the latter compensator being connected at its Field of Search 248/20, 21, lower end to a strut that extends to and attaches to the turbine l9, l6, 14, 23, DIG. 1,308/26, 31, 33, 15,22; or other element thereof to which the first compensator is at- 60/54.5, 54.6 tached.
  • This invention relates to a device for the automatic adjustment of the length of a stay or supporting post.
  • An example of such a device is, in the case of a steam turbine, mounted on a vacuum shell and supporting an overhung generator and/or a high-pressure turbine which has its outer end supported by stays or posts that are adapted to be adjusted in length by means of the present invention to compensate for changes in the height of the vacuum shell.
  • FIG. 1 is a side elevational view of a steam turbine to which the invention is applied;
  • FIG. 2 is an alternative construction and FIG. 3 is the alternative construction turned through 90".
  • the vacuum shell shown at l envelops the condenser 2 and also envelops and supports a low-pressure turbine 3.
  • the shell 1 also supports an overhung high-pressure turbine 4 and an electric generator 5.
  • the elements 2 to 5 inclusive are supported at their free ends by the stays or supports 6.
  • Each of the stays rests on a compensator 7 that consists of a liquid-filled (preferably oil-filled) casing which is free to expand in the direction of the length of the stay.
  • the drawing shows a bellows-type construction.
  • the compensator shown at 7 is connected by means of a pipe 8 to another compensator 9 of design and construction similar to the compensator 7.
  • the compensator 9 is fitted between a fixed support 10 which locates the upper end wall of the compensator and a tie bar 11 extending between the fixed end of the generator or the turbine and the lower end wall of the compensator 9.
  • the height of the vacuum shell 1 will vary and consequently the distance between the foundation and the fixed ends of the generator 5 and the high-pressure turbine 4 will also vary.
  • the length of the stays changes with variations in the height of the vacuum shell in the following manner.
  • the tie bar 11 also moves and slightly compresses the compensator 9, thus forcing the oil through the pipe 8 to the interior of the compensator 7, which, because of the entry of the oil, expands in height and slightly lifts the stay 6.
  • the ends of the generator and the high-pressure turbine are also raised so that the entire line 12 remains straight.
  • compensator 9 operated by the tie bar can be connected to several of the compensators 7 thereby adjust the length of several stays.
  • a spring-loaded stay 13 may be used to take over part of the load supported by the stay 6.
  • the tie bar 11 is provided with a yoke 14 which supports the lower end wall of the compensator.
  • the upper end wall rests against the fixed support 10.
  • the stay 6 can be omitted if desired in a case where the compensator 7 is placed under the stay 13.
  • a compensating mechanism to provide uniform displacement of an engine shaft with respect to a support base comprising a first fluidfilled compensator, one end of said compensator being connected to said support base and the other end thereof connected to an overhanging portion of said shaft, a second fluid-filled compensator in fluid connection with said first compensator supported above said base member and having one end thereof connected to said shaft at a point spaced from the point of connection of said first compensator.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Vibration Prevention Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Turbines (AREA)
US820458A 1968-05-07 1969-04-30 Device for automatically adjusting the effective length of a stay or support Expired - Lifetime US3614039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE610868 1968-05-07

Publications (1)

Publication Number Publication Date
US3614039A true US3614039A (en) 1971-10-19

Family

ID=20267920

Family Applications (1)

Application Number Title Priority Date Filing Date
US820458A Expired - Lifetime US3614039A (en) 1968-05-07 1969-04-30 Device for automatically adjusting the effective length of a stay or support

Country Status (5)

Country Link
US (1) US3614039A (enrdf_load_stackoverflow)
CH (1) CH488140A (enrdf_load_stackoverflow)
DE (2) DE1923384A1 (enrdf_load_stackoverflow)
FR (1) FR1571907A (enrdf_load_stackoverflow)
GB (1) GB1260941A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866865A (en) * 1972-04-19 1975-02-18 Intercompressor Inc System for supporting and aligning drive motors
US4759262A (en) * 1987-05-11 1988-07-26 The Dow Chemical Company Apparatus for restraining rotary motion of a motor component
US20060099095A1 (en) * 2004-11-05 2006-05-11 David Brouillet Electric machine arrangement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT354490B (de) * 1978-01-10 1980-01-10 Voest Alpine Ag Drehmomentenstuetze
DE3200816C2 (de) * 1982-01-11 1987-01-15 Gerb Gesellschaft für Isolierung mbH & Co KG, 1000 Berlin Elastisches Lagerungselement für eine biegeelastische Fundamentplatte
DE3200815C2 (de) * 1982-01-11 1987-02-12 Gerb Gesellschaft für Isolierung mbH & Co KG, 1000 Berlin Verfahren zum Ausrichten der Wellen eines Wellenzuges

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1234573A (en) * 1915-04-28 1917-07-24 Strebelwerk Gmbh Thermostatic regulator.
US1683351A (en) * 1928-09-04 Assigrnob to westinghotjse elec

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1683351A (en) * 1928-09-04 Assigrnob to westinghotjse elec
US1234573A (en) * 1915-04-28 1917-07-24 Strebelwerk Gmbh Thermostatic regulator.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866865A (en) * 1972-04-19 1975-02-18 Intercompressor Inc System for supporting and aligning drive motors
US4759262A (en) * 1987-05-11 1988-07-26 The Dow Chemical Company Apparatus for restraining rotary motion of a motor component
US20060099095A1 (en) * 2004-11-05 2006-05-11 David Brouillet Electric machine arrangement
US7495361B2 (en) 2004-11-05 2009-02-24 Pratt & Whitney Canada Corp. Electric machine arrangement

Also Published As

Publication number Publication date
GB1260941A (en) 1972-01-19
DE6918566U (de) 1970-12-10
CH488140A (de) 1970-03-31
DE1923384A1 (de) 1970-04-30
FR1571907A (enrdf_load_stackoverflow) 1969-06-20

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