EP2036816A2 - Raccordement amovible par complémentarité de forme et de force d'un corps de base doté d'un composant installé de manière rotative - Google Patents

Raccordement amovible par complémentarité de forme et de force d'un corps de base doté d'un composant installé de manière rotative Download PDF

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Publication number
EP2036816A2
EP2036816A2 EP20080015811 EP08015811A EP2036816A2 EP 2036816 A2 EP2036816 A2 EP 2036816A2 EP 20080015811 EP20080015811 EP 20080015811 EP 08015811 A EP08015811 A EP 08015811A EP 2036816 A2 EP2036816 A2 EP 2036816A2
Authority
EP
European Patent Office
Prior art keywords
base body
component
fit
connection
roller bearing
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.)
Withdrawn
Application number
EP20080015811
Other languages
German (de)
English (en)
Inventor
Alfred W. Schlemenat
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.)
Schlemenat Alfred
Original Assignee
Schlemenat Alfred
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 Schlemenat Alfred filed Critical Schlemenat Alfred
Publication of EP2036816A2 publication Critical patent/EP2036816A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/20—Hubs; Blade connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary
    • B63H3/04—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable

Definitions

  • the invention relates to a releasable non-positive and positive connection of a base body with a rotatably mounted about its axis of rotation component, for example between adjustable propellers and a propeller hub of the type specified in the preamble of claim 1.
  • Adjustable propellers are used to generate propulsion in watercraft and to convert the flow energy of the wind or water into another form of energy.
  • Adjustable propellers have an adjustment mechanism for rotating the propeller blades about their axis of rotation, the stepless change of the pitch according to the required operating situation.
  • the adjusting forces are generated, for example, electrically, mechanically, hydraulically or in combination with one another. From the propeller blade, all forces are transferred to the propeller hub via the blade bearing.
  • the mechanism of action of the various adjusting devices and the embodiments of the connections between the propeller and hub are familiar to the expert.
  • Illustrative of almost all of the prior art representative embodiments of adjustable propellers for generating a propulsion of watercraft shows the EP 1 074 463 A3 Both a releasable screw connection on the propeller base and a sophisticated and complex kinematics of the interacting components. The production, assembly and maintenance are correspondingly expensive.
  • connection system “ Schlemenat” is advantageous to use in place of all conventional compounds where axially arranged screws connect rotationally symmetric components, regardless of the application, the structural design, the diameter or the operating temperature highest loads (pressure, forces, moments) are transmitted safely, as well as to compounds of large rolling bearings with the respective connecting structure.
  • Applications now lead to enormous economic advantages over conventional connections in almost all industrial sectors.
  • the object of the invention is, with simultaneous use of the characterizing features of the previously described EP 0 775 863 B1 and EP 1 010 931 B1 achievable advantages a detachable maintenance-free and constantly problem-free connection to be used by a body with this arranged to create its axis of rotation rotatably mounted component, which eliminates the disadvantages described above, minimizes manufacturing and maintenance costs and consequential damage caused by dissolved screws , In the foreground is also a simplification of the assembly.
  • annular adapter is arranged on the axis of rotation of the rotatable component, which in the region of the inner contour with the outer ring of the rolling bearing and in the region of its outer contour with the base body in each case releasably by frictionally acting wedge-shaped elements corresponding to EP 0 775 863 B1 and EP 1 010 931 B1 can be clamped force and form fit.
  • the inner ring of the bearing is with the rotatable component also releasably clamped by wedge-shaped elements non-positively and positively, so that a complete functional unit consisting of the annular adapter, the integrated rolling bearing and the rotatable component can be created under workshop conditions.
  • the desired simplification of the assembly is achieved in that regardless of the application and the weather conditions on site a complete assembly unit in the opening of the body relatively easy to use and to accurately position and clamp to a contact surface. Over the entire operating time a change in the tensioned state is excluded.
  • the power transmission from the rotary / adjusting mechanism on the rotatable member is either via a positive operative connection, which is made in confined spaces during insertion of the mounting unit in the body due to the interlocking and cooperating contact surfaces (for example, between a sliding block and a slotted guide) or at larger diameters over connections according to the prior art.
  • a positive operative connection which is made in confined spaces during insertion of the mounting unit in the body due to the interlocking and cooperating contact surfaces (for example, between a sliding block and a slotted guide) or at larger diameters over connections according to the prior art.
  • the inventive detachable positive and positive connection between the components to be connected eliminates the need for expensive maintenance work for checking or maintaining the screw prestressing forces.
  • the non-positively and positively clamped large rolling bearing according to the characterizing features of the previously described EP 0 775 863 and the EP 1 010 931 B1 thus lead in contrast to the prior art to permanently maintenance-free and secure connections.
  • the inner and outer ring of the slew bearing have no holes for receiving screws. Due to the minimal lever arm thus achieved, an optimal power flow through the rolling elements, so that the requirements of the bearing manufacturer are met after a concentration of the contact pressure of the bearing stress near the line of force. The reliability of the slewing bearings is thus significantly increased, a gap of the clamping joint is avoided. The strictly prescribed maintenance and testing of the screws and the free access to the warehouse is no longer required. This leads, regardless of the industrial application to the simplified design of all interacting components.
  • FIG. 1 shows in a section the strained state of a releasable positive and positive connection between a propeller hub 1 and an adjustable propeller 4 for generating feed in watercraft.
  • annular adapter 6 is arranged between the propeller base and the propeller hub. This is in the region of its outer contour with the propeller hub and in the region of its inner contour with the outer ring 7 of the cross roller bearing 2 shown each releasably by wedge-shaped elements 9, 9 'positively and positively clamped.
  • the inner ring 8 of the roller bearing 2 is also releasably clamped by wedge-shaped elements 9 "with the base of the propeller in a form-fitting and positive fit the hub is provided with a closure profile (not shown in the figure) for reducing the flow resistance, and seals between the individual components secure the seal to the interior of the propeller hub.
  • a closure profile (not shown in the figure) for reducing the flow resistance, and seals between the individual components secure the seal to the interior of the propeller hub.
  • FIG. 2 shows analogous to FIG. 1 in a section the strained state of a releasable non-positive and positive connection between a hub 1 and the rotor blade connection 4 of a wind turbine. Due to the limited space in the hub, the tension of the functional unit 10 is also from the outside. The power transmission from the rotary / adjusting mechanism to the rotor blade is not shown.
  • FIG. 3 shows in a sectional view also the strained state of a releasable positive and positive connection between a hub 1 and the rotor blade connection of a wind turbine. Due to a larger hub diameter is in contrast to FIG. 2 however, the tension of the functional unit 10 out of the interior of the hub.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)
  • Wind Motors (AREA)
EP20080015811 2007-09-13 2008-09-09 Raccordement amovible par complémentarité de forme et de force d'un corps de base doté d'un composant installé de manière rotative Withdrawn EP2036816A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007043806 2007-09-13
DE102008034752A DE102008034752A1 (de) 2007-09-13 2008-07-24 Lösbare Kraft- und formschlüssige Verbindung von einem Grundkörper mit einem drehbar gelagerten Bauteil

Publications (1)

Publication Number Publication Date
EP2036816A2 true EP2036816A2 (fr) 2009-03-18

Family

ID=39917825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080015811 Withdrawn EP2036816A2 (fr) 2007-09-13 2008-09-09 Raccordement amovible par complémentarité de forme et de force d'un corps de base doté d'un composant installé de manière rotative

Country Status (2)

Country Link
EP (1) EP2036816A2 (fr)
DE (3) DE202007013319U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113389818A (zh) * 2021-06-16 2021-09-14 北京三力新能科技有限公司 一种回转支承使用的螺栓联接方式

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024845A1 (de) * 2009-06-09 2010-12-16 Howaldtswerke-Deutsche Werft Gmbh Propeller
DE102011012565A1 (de) * 2010-10-02 2012-04-26 Mulundu Sichone Ringpropeller mit Schaufelverstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29615393U1 (de) 1995-11-25 1996-10-31 MAN Gutehoffnungshütte AG, 46145 Oberhausen Kraft- und formschlüssige Verbindung von rotationssymmetrischen Bauteilen
DE29921714U1 (de) 1998-12-16 2000-03-09 Schlemenat Alfred Lösbare Verbindung von rotationssymmetrischen Bauteilen
DE19936948C1 (de) 1999-08-05 2001-01-25 Peter Mueller Verstellpropeller für Motorboote und Sportboote

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113389818A (zh) * 2021-06-16 2021-09-14 北京三力新能科技有限公司 一种回转支承使用的螺栓联接方式

Also Published As

Publication number Publication date
DE202008010810U1 (de) 2008-10-30
DE102008034752A1 (de) 2009-03-19
DE202007013319U1 (de) 2007-12-20

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