US3835801A - Device for rotating passage through a wall subject to different pressures on either side - Google Patents

Device for rotating passage through a wall subject to different pressures on either side Download PDF

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Publication number
US3835801A
US3835801A US00399155A US39915573A US3835801A US 3835801 A US3835801 A US 3835801A US 00399155 A US00399155 A US 00399155A US 39915573 A US39915573 A US 39915573A US 3835801 A US3835801 A US 3835801A
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US
United States
Prior art keywords
wall
housing
shaft
bore
shoulder
Prior art date
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Expired - Lifetime
Application number
US00399155A
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English (en)
Inventor
David P Von
G Martin
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Direction General de lArmement DGA
Original Assignee
Delegation Ministerielle pour lArmement
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Publication date
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Publication of US3835801A publication Critical patent/US3835801A/en
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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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/54—Other sealings for rotating shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base

Definitions

  • ABSTRACT For effecting control from one side of a wall of a member on the other side thereof, such as through the pressure hull of a submarine, an arrangement is provided wherein a rotary shaft passes through a bore in the wall and a separate housing mounted on the high pressure side about the axis of the bore, such that driver and driven members can be coupled to the ends of the shaft.
  • the housing is formed with a cavity, and the shaft comprises first and second shaft elements axially separable but rotatably coupled with each other.
  • the second shaft element extends from the housing cavity away from the wall and has a shoulder in the housing cavity facing toward the wall, and bearing rotatably against a thrust bearing disposed in the housing between the wall and the shoulder.
  • the housing and the wall bore are sealed so as to be fluid tight.
  • the housing which comprises a housing body and a removable cap, is coupled to the high pressure side of the wall, such as by threaded rods, bolts, etc.
  • the arrangement permits the opening in the wall to take the form of a simple smooth bore, with the necessary machining of shoulders and other arrangements for ensuring sealing and resisting pressure being done on the separate housing.
  • the arrangement also limits the transmission of nonrotative stresses from the second shaft element on the high pressure side to the first shaft element, which extends into the low pressure area.
  • the arrangement also facilitates repair after damage.
  • This invention relates to a device or apparatus for effecting rotary drive or passage through a wall subject to different pressures on its sides, particularly in the field of submersible apparatus.
  • the invention generally comprises a shaft rotatably mounted in a wall of the type subject to different pressures on its faces, such that the ends of the shaft can be coupled to driving and driven members at its ends.
  • the shaft preferably is constituted by at least two cooperating shaft elements, and the shaft passes also through a separate housing mounted on the high pressure face of the wall, the shaft element which is principally disposed on the high pressure side having a shoulder that bears rotatably against a bearing carried by the separate housing.
  • the other shaft element that is, the element which is principally disposed on the low pressure side, also has a shoulder bearing on the housing through a wear annulus or the like.
  • the two shaft elements are rotatably coupled by an intermediate element having at each of its axial extremities a diametral tenon that engages in a diametral groove in the adjacent shaft element.
  • the diametral tenons are disposed at 90 with reference to each other.
  • the bearing preferably is a roller thrust bearing.
  • the housing preferably comprises a housing body mounted against the high pressure face of the wall and having an open outer end which is closed by a removable cap.
  • the housing is hollowed out along coaxial diameters to provide the necessary housings and/or seats for the bearing, wear annulus, shoulders, etc., thus permitting the opening through the wall itself to be a smooth caliber bore.
  • the housing body and its cap preferably are fixed to the wall by threaded connectors.
  • the arrangement in accordance with the invention is the fact that the passage through the hull requires only one free hole, the machining of the shoulders and other arrangements to ensure seal and resist pressure being done on the separate housing, which renders it possible to do this machining and the like in the shop. Furthermore, the arrangement limits the transmission of stresses exerted on the outer shaft element to the inner shaft elements, because the elements do not bear on each other and only cooperate in rotation. Thus, the outer shaft element has a shoulder bearing against the roller bearing in the separate housing, whereby forces and stresses on the outer shaft element are transmitted to the separate housing and thence to the hull.
  • the interposition of the intermediate element between the two shaft elements, and their assembly by grooves and tenons disposed at with respect to each other, allows the taking up of any false alignment that might be present upon completion of assembly.
  • FIG. 1 is a view in partial section of a wall incorporating an arrangement in accordance with the invention.
  • FIG. 2 is a perspective view of the intermediate element that rotatably connects the two shaft elements in the housing cavity.
  • FIG. 1 illustrates a preferred embodiment of the in-' vention passing through a wall 1, having on its faces extra thicknesses la and 1b, the wall being, for instance, part of the pressure hull of a submarine.
  • Rotary control drive through the wall is effected by means of a shaft 2, comprising three elements, 2a, 2b and 2c.
  • the wall includes a smooth caliber bore 10 in which element 2a of shaft 2 is disposed.
  • the shaft comprises at its end that extends into the interior of the craft a threaded part 21a carrying a spindle nut 3 and a portion 22a on which which there is keyed a handle 4 or the-like, for example by means of a tapped nut locking device 5 and a clamping nut 6 cooperating with a threaded part 23a at the end of element 2a.
  • Element 2a also has a groove 24a in which there is disposed a seal 7.
  • a wear washer 8, of bronze, for example, is inserted between the face of thickened portion 1a andnu t 3.
  • housing 9 On the face of the other thickened portion lb there is a housing 9 comprising, on the one hand, a cylindrical projection 9a which engages in a cylindrical seat Id in the thickened portion 1b, and, on the other hand, a cylindrical projection 9b that cooperates with a seat 10a of a cap 10.
  • Housing 9 has a chamber 90 machined out along different coaxial diameters, and it has an opening 9d through which shaft element 2a passes.
  • Shaft element 2a includes a shoulder 25a seated in a cylindrical space 91c of chamber 9c, and bearing on bearing surface 9e by means of a wear washer 11.
  • element 2a presents a diametral groove 26a in which there engages a diametral tenon 21b of intermediate element 2b, whose external diameter is identical to that of element 2a.
  • Intermediate element 2b comprises at its other end another diametral tenon 22b disposed at 90 with reference to tenon 21b (see FIG. 2), which tenon 22b cooperates with a groove 210 on one of the ends of element 2c, which is machined to engage inside the lower bearing race of roller bearing 12.
  • Shaft element has a shoulder 22c which bears against roller bearing 12, which in turns bears on a bearing surface 9f of housing 9. Bearing 12 and shoulder 22c are seated in a space 920 of chamber 9c. Shoulder 22c is approximately level or flush with projection Housing 9 includes, on the side of projection 9a, an annular groove 9g in which a toric seal 13 is seated.
  • Seat 10a is deep enough to allow some play between its bottom and shoulder 22c.
  • a wear washer not shown, could be disposed here to limit the longitudinal play.
  • Cap 10 includes a bevel 10c housing a toric seal 14 enclosing projection 9b of housing 9.
  • Cap 10 and housing 9 are fixed, for example, by four rods 16 screwed by one of their ends in threaded bores 1e of wall 1, and having clamping nuts 17 at their other ends.
  • the housing and the cap are pierced by four holes in which threaded rods 16 are located.
  • spindle nut 3 When the device is being assembled, spindle nut 3 is suitably adjusted so that shaft 2 may turn without forcing, with minimum longitudinal clearance between shoulder a cooperating with washer 11, on the one hand, and bearing surface 92 of housing 9, on the other hand, the nut 3 cooperating with washer 8 and thickened portion 1a of wall 1.
  • This arrangement has the effect, in case of accidental rupture of the housing and its cap, of sustaining the housing in position, closely applied against wall 1, whereby the pressure of the water tends to ensure the seal of the device at this place.
  • a wall having first low-pressure and second high-pressure sides and a smooth bore therethrough, and apparatus for effecting rotary drive through said wall bore
  • said apparatus comprising a separate housing means mounted wholly on said second side at one end of and about the axis of said bore so as to lie axially clear of said bore, said housing means having a cavity therein and openings aligned with said bore, shaft means passing from said first side of said wall sealingly through said bore with slight clearance and then into and through said housing means such that driver and driven members can be coupled to the ends thereof, said shaft means comprising first and second shaft elements axially separable but rotatably coupled with each other, said second shaft element extending from said housing away from said wall and having a shoulder in said housing facing axially toward said wall, said housing having thrust bearing means disposed therein between said wall and said shoulder and facing said shoulder such that said shoulder bears axially rotatably against said bearing means, thus limiting the transmission of non-rotative stresses from said second shaft element to said first shaft element.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Sealing Devices (AREA)
US00399155A 1972-09-25 1973-09-20 Device for rotating passage through a wall subject to different pressures on either side Expired - Lifetime US3835801A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7233817A FR2200940A5 (enExample) 1972-09-25 1972-09-25

Publications (1)

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US3835801A true US3835801A (en) 1974-09-17

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US00399155A Expired - Lifetime US3835801A (en) 1972-09-25 1973-09-20 Device for rotating passage through a wall subject to different pressures on either side

Country Status (3)

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US (1) US3835801A (enExample)
FR (1) FR2200940A5 (enExample)
GB (1) GB1438027A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500740B1 (de) * 2004-10-27 2006-03-15 Walter Dolzer Wellenabdichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK201384A (da) * 1984-04-18 1985-10-19 Grundfos As Hoejdereguleringsindretning til maskiner eller maskinelementer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213153A (en) * 1913-12-19 1917-01-23 Engrenages Citroen Sa Des Submarine steering apparatus.
US2863336A (en) * 1956-09-07 1958-12-09 Burroughs Corp Apparatus for actuating sealed instruments
GB826513A (en) * 1957-03-08 1960-01-13 Atomic Energy Authority Uk Improvements in or relating to glandless shaft drive transmission systems
US3283597A (en) * 1964-07-09 1966-11-08 Karlsruhe Augsburg Iweka Structure for transmitting rotary motion through a hermetically sealed space

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213153A (en) * 1913-12-19 1917-01-23 Engrenages Citroen Sa Des Submarine steering apparatus.
US2863336A (en) * 1956-09-07 1958-12-09 Burroughs Corp Apparatus for actuating sealed instruments
GB826513A (en) * 1957-03-08 1960-01-13 Atomic Energy Authority Uk Improvements in or relating to glandless shaft drive transmission systems
US3283597A (en) * 1964-07-09 1966-11-08 Karlsruhe Augsburg Iweka Structure for transmitting rotary motion through a hermetically sealed space

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500740B1 (de) * 2004-10-27 2006-03-15 Walter Dolzer Wellenabdichtung

Also Published As

Publication number Publication date
GB1438027A (en) 1976-06-03
FR2200940A5 (enExample) 1974-04-19

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