EP2316617A2 - Outil de fixation d'un écrou de fixation d'un palier - Google Patents

Outil de fixation d'un écrou de fixation d'un palier Download PDF

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Publication number
EP2316617A2
EP2316617A2 EP20100189211 EP10189211A EP2316617A2 EP 2316617 A2 EP2316617 A2 EP 2316617A2 EP 20100189211 EP20100189211 EP 20100189211 EP 10189211 A EP10189211 A EP 10189211A EP 2316617 A2 EP2316617 A2 EP 2316617A2
Authority
EP
European Patent Office
Prior art keywords
tool
positive engagement
tool according
fastening nut
axial direction
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Withdrawn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
EP20100189211
Other languages
German (de)
English (en)
Inventor
Fabian Hudert
Wolfgang Husslein
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.)
SKF AB
Original Assignee
SKF 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 SKF AB filed Critical SKF AB
Publication of EP2316617A2 publication Critical patent/EP2316617A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes

Definitions

  • the invention relates to a tool for tightening a fastening nut of a bearing assembly, wherein the fastening nut can be screwed onto a threaded portion of a shaft, whereby the fastening nut axially fixes a bearing ring of a bearing.
  • a bearing ring of a bearing is often axially fixed by means of a fastening nut (shaft nut) on a shaft, for which purpose the fastening nut is screwed onto the shaft to a corresponding thread.
  • the US 2008/0121073 A1 shows a tube-like tool that has a profiling in its axial end region to a form-locking to grip a component to be rotated can. In a region spaced from the end region, a gripping surface for a wrench is arranged.
  • shaft nuts are themselves provided with special designs to allow engagement of tools for applying a torque. This shows, for example, the DE 1 781 232 U and the EP 1 052 047 A2 ,
  • the invention is therefore based on the object to propose a tool for tightening a mounting nut of a bearing assembly, with a fastening nut can be screwed firmly on a threaded portion of a shaft, with a secure engagement with the mother is to be ensured even in a small space to on this can apply a sufficiently large torque.
  • the body extending in the axial direction is tubular.
  • the tubular body can have a constant outer diameter. But it is also possible that the tubular body in the areas of the first positive engagement and the second positive engagement has different outer diameter; In this case, it can further be provided that the tubular body in the region of the first positive engagement has a smaller outer diameter than in the region of the second positive engagement.
  • the body may have a slot over its entire axial extent at a peripheral location, which allows the tool to be fitted over a continuous shaft.
  • the extension can have a shape seen in the axial direction, which corresponds to that of the recess of the fastening nut.
  • the extension and the recess can have a rectangular shape when viewed in the axial direction.
  • the introduced into the outer circumference of the body groove may continue to have seen in the axial direction of a rectangular shape.
  • two, three or four extensions and introduced into the outer circumference of the body grooves are present.
  • the proposed tool is used very advantageous when a shaft nut must be tightened in a flange bearing. This applies, for example, to bearing housings of the FNL series with a continuous shaft.
  • the tool can also be referred to as Nutmutternglocke.
  • the mounting of a bearing on a clamping sleeve can be done very easily, which is not the case so far, because the tightening shaft nut is located in the housing.
  • the assembly of the shaft nut with a continuous shaft is possible in a simple manner.
  • a bearing 6, which is part of a bearing assembly 3, is used to support a shaft 4 relative to a housing 15 which is only indicated very schematically.
  • a bearing ring 5, namely the bearing inner ring, is thereby fixed axially on the shaft 4 by means of a fastening nut 2.
  • the housing 15 represents a major obstacle, as far as access to the outer circumference of the fastening nut 2 is concerned. Accordingly, it is difficult to apply sufficient torque to the fixing nut 2 to fix it on the shaft 4.
  • a tool 1 is provided, which in Fig. 1 is shown in its engaged position with the fastening nut 2. In the FIGS. 2 and 3 the tool 1 is shown isolated.
  • the tool 1 consists of a tubular body 7 which extends in an axial direction a.
  • the tubular body 7 has in its one axial end region on a first positive engagement 8 in the form of a plurality of extensions 12 which are formed for engagement in corresponding recesses 9 of the fastening nut 2 (see Fig. 2 ).
  • the tubular body 7 has a second positive engagement 10 to a means 11 (with dashed lines in Fig. 2 sketched) to apply a form-fitting for applying a torque.
  • the means 11 is presently designed as a known hook wrench, which engage with corresponding projections in the grooves 13 formed as a form-fitting interventions 10 and so can rotate the tool 1.
  • the tool 1 for tightening the mounting nut 2 is first inserted axially with its extensions 12 in the recesses 9 of the nut 2 to then intervene with the hook wrench 11 in the grooves 13 and the tool 1 together with nut 2 to rotate.
  • the tubular body 7 has a slot 14, as is made Fig. 2 evident.
  • the slot 14 is dimensioned such that an opening width w results or an opening width in dependence of the shaft diameter is selected so that the shaft 4 can be encompassed. Due to the slot 14 results in an angle ⁇ , over which the tool 1 is free. This angle ⁇ is for example in a range between 45 ° to 135 °. This can be embraced on the one hand, a relatively thick shaft 4, on the other hand, however, reliably sufficient torque can be transmitted.
  • the tool 1 preferably has three extensions 12. In the outer circumference of the tubular body 7, however, preferably 4 grooves 13 are incorporated.
  • the first positive engagement 8 and the second positive engagement 10 are arranged axially offset.
  • the outer diameter of the tubular body 7 in the region of the first positive engagement 8 is less than in the region of the second positive engagement 10. The transition between the two diameter regions is formed cranked.
  • the tubular body 7 has a constant diameter over its axial extent. Then, the grooves 13 can be incorporated over the entire axial extent. Nevertheless, even in this case, the first positive engagement 8 is at least partially offset axially relative to the second positive engagement 10. In this case can be brought as close as possible to the nut 2 with the hook wrench 11, which reduces the risk of slipping or tilting.
  • the plurality of grooves 13 in the outer periphery of the tool make it possible that a larger hook wrench 11 can be gripped several times to tighten the nut 2.
  • the cranked version of the transition of the in Fig. 3 left portion of the tube 7 to the right portion is not necessarily designed. It is also possible to provide or execute a sharp-edged transition in the form of a step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP20100189211 2009-10-30 2010-10-28 Outil de fixation d'un écrou de fixation d'un palier Withdrawn EP2316617A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009051358A DE102009051358A1 (de) 2009-10-30 2009-10-30 Werkzeug zum Festdrehen einer Befestigungsmutter einer Lageranordnung

Publications (1)

Publication Number Publication Date
EP2316617A2 true EP2316617A2 (fr) 2011-05-04

Family

ID=43447709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100189211 Withdrawn EP2316617A2 (fr) 2009-10-30 2010-10-28 Outil de fixation d'un écrou de fixation d'un palier

Country Status (2)

Country Link
EP (1) EP2316617A2 (fr)
DE (1) DE102009051358A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1781232U (de) 1957-06-13 1959-01-15 Louis Pohl Ueberwurfmutter mit rippen fuer hakenschluessel.
EP1052047A2 (fr) 1999-05-06 2000-11-15 Zollmann GmbH Ecrou de serrage pour pince de serrage
US6282994B1 (en) 2000-04-04 2001-09-04 Chiao Wei Socket
DE202004011461U1 (de) 2004-07-14 2004-09-23 IKON GmbH Präzisionstechnik Befestigung für einen Rundzylinder
DE102004045675A1 (de) 2003-09-18 2005-04-28 Manfred Menke Spannmittel
US20080121073A1 (en) 2006-11-27 2008-05-29 Nathan Williams Socket wrench for lug nuts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5615587A (en) * 1993-07-01 1997-04-01 Foerster, Jr.; Erwin W. Deep-socket driver apparatus
US6701807B1 (en) * 2003-02-25 2004-03-09 Barry Gammon Socket with off-center slot
US20040194585A1 (en) * 2003-04-03 2004-10-07 Clark Margaret Annette Coaxial cable thumb socket
US6945142B1 (en) * 2003-10-23 2005-09-20 Yu Tang Chen Socket
US6951156B2 (en) * 2003-12-19 2005-10-04 The Stanley Works Socket
TWI245688B (en) * 2004-05-28 2005-12-21 Hou-Fei Hu New driving tool combination system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1781232U (de) 1957-06-13 1959-01-15 Louis Pohl Ueberwurfmutter mit rippen fuer hakenschluessel.
EP1052047A2 (fr) 1999-05-06 2000-11-15 Zollmann GmbH Ecrou de serrage pour pince de serrage
US6282994B1 (en) 2000-04-04 2001-09-04 Chiao Wei Socket
DE102004045675A1 (de) 2003-09-18 2005-04-28 Manfred Menke Spannmittel
DE202004011461U1 (de) 2004-07-14 2004-09-23 IKON GmbH Präzisionstechnik Befestigung für einen Rundzylinder
US20080121073A1 (en) 2006-11-27 2008-05-29 Nathan Williams Socket wrench for lug nuts

Also Published As

Publication number Publication date
DE102009051358A1 (de) 2011-05-05

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