WO2007068595A1 - Fixation d'une poulie de renvoi - Google Patents

Fixation d'une poulie de renvoi Download PDF

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Publication number
WO2007068595A1
WO2007068595A1 PCT/EP2006/069106 EP2006069106W WO2007068595A1 WO 2007068595 A1 WO2007068595 A1 WO 2007068595A1 EP 2006069106 W EP2006069106 W EP 2006069106W WO 2007068595 A1 WO2007068595 A1 WO 2007068595A1
Authority
WO
WIPO (PCT)
Prior art keywords
bolt
rolling bearing
pulley according
machine part
spacer
Prior art date
Application number
PCT/EP2006/069106
Other languages
German (de)
English (en)
Inventor
Aleksandar Lutkic
Original Assignee
Schaeffler Kg
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 Schaeffler Kg filed Critical Schaeffler Kg
Publication of WO2007068595A1 publication Critical patent/WO2007068595A1/fr

Links

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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/18—Means for guiding or supporting belts, ropes, or chains
    • F16H7/20—Mountings for rollers or pulleys
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/63—Gears with belts and pulleys
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0863—Finally actuated members, e.g. constructional details thereof
    • F16H2007/0872—Sliding members

Definitions

  • the present invention relates to a deflection roller for a traction mechanism drive of an internal combustion engine, on which a traction means, in particular a belt is guided.
  • the deflection roller is rotatably supported by a rolling bearing, wherein the outer ring is enclosed by a preferably made of plastic rotor.
  • a secured against loss, used in the rolling bearing inner ring screw is provided.
  • Deflection rollers used in traction mechanism drives preferably have the task of ensuring a sufficient wrap angle on the pulleys required for the function of the traction mechanism drive in order to achieve a slip-resistant drive.
  • pulleys allow the representation of a specific belt layout, whereby the traction means, for example, can be selectively guided in a limited by contours of the internal combustion engine or associated components of the internal combustion engine installation space.
  • all components of the deflection roller, including the screwed connection are pre-assembled in a secured manner.
  • DE 42 42 293 A1 discloses a deflection roller which is fastened by means of a screw on a pivot arm of the clamping system. Between the screw head and an end surface of the rolling bearing inner ring a washer intended as a washer for the screw is provided.
  • the design of the disk should additionally seal the rolling bearing, ie prevent the entry of dirt into the rolling bearing.
  • the arrangement and the design of the lock washer does not provide an effective loserge foundedte arrangement of the screw.
  • From DE 297 20 776 U1 a further pulley attachment is known in which a front side of the rolling bearing covering the sealing washer is pressed into the receptacle of the rolling bearing inner ring.
  • the sealing disc forms centric so-called spring tongues with which the fastening screw is held.
  • this prior art discloses a pulley, the captive exclusively relates to the mounting screw.
  • DE 198 36 191 B4 relates to a securing device for the fastening screw of a deflection roller which is assigned to the inner ring of the rolling bearing.
  • a retaining ring made of plastic is pressed under pretension in the bore of the inner ring.
  • the bore of the retaining element is used in the installed state for receiving the screw.
  • the retaining element is associated with an undercut of the screw connection, whereby the screw connection can be screwed in without interference by the retaining ring.
  • the deflection roller according to the invention includes a screw as a screw. This is supported with a screw head on one side of the roller bearing inner ring and also forms a relative to the rolling bearing axially offset positioned polygonal profile, on which a Ge Winding pin connects.
  • the bolt engages positively in a corresponding to the polygonal profile recording of the machine part, which is assigned to the deflection roller.
  • the exiting threaded pin of the bolt serves to receive a flange nut.
  • the attachment of the deflection roller according to the invention is particularly suitable for installation situations in which, for example, the wall thickness of the machine part does not ensure sufficient thread length for a permanent fixation.
  • the fastening method according to the invention offers a construction space-optimized installation position in which the running disk is positioned at a small axial distance from the outer contour of the machine part.
  • the invention allows a secure attachment of the pulley in tight installation conditions, such as where a free access to the engine compartment is not given and, for example, the insertion and tightening with a separate tool of the fitting is not possible.
  • the invention allows the guide roller is already attached in the pre-assembly of a machine part, which also adjusts a simplification of assembly. After insertion of the bolt in a polygonal profile corresponding to the receptacle of the screw bolt is fixed in position. By solely tightening the flange nut, the permanent attachment of the pulley is then ensured.
  • the screw bolt preferably has a disk-like screw head, which is mounted on the side facing away from the machine part. te of the rolling bearing is supported.
  • the installation position and the screw head height is selected such that it does not exceed an end-face contour of the running disk and thus of the deflection roller.
  • This structural design of the screw head advantageously does not require an enlarged axial installation space of the deflection roller.
  • the bolt is advantageously provided with a subsequent to the screw head centering on which the roller bearing inner ring is fixed and centered in the installed state. Furthermore, the screw head on the front side a tool holder, which is intended for a separate tool with which the bolt can be rotated during assembly. Thus, the bolt is adjustable and the polygonal profile can be easily fitted into the corresponding receptacle of the machine part.
  • the deflection roller can be mounted with the mounting method according to the invention on a control box cover of the internal combustion engine before this cover is attached to the internal combustion engine.
  • the flange nut which together with the bolt secures a permanent fixation of the deflecting roller, according to the invention can be associated with a washer to achieve an enlarged support surface on the inside of the control box cover or the machine part.
  • This additional component is particularly suitable for control covers made of aluminum in order to reduce the surface pressure in the region of the flange nut.
  • the deflection roller includes a the inner ring of the roller bearing associated spacer, which defines an axial distance of the deflection roller to the machine part.
  • the spacer extends radially beyond an outer contour of the rolling bearing and thus simultaneously creates a seal of the rolling bearing. This can be improved by a board arranged on the outer circumference of the spacer plate, preferably angled at a right angle. For example, the outer ring of the bearing limited overlaps, creating a seal labyrinth.
  • the deflection roller according to the invention makes sense to provide the deflection roller according to the invention with a further seal.
  • a sealing washer is provided for this purpose, which is inserted between the screw head of the bolt and the rolling bearing.
  • the diameter of this sealing disc extends radially over the annular gap which is set between the bearing rings of the rolling bearing. The sealing disc ensures a sufficient sealing effect and effectively prevents contamination from entering the rolling bearing.
  • a component thickness of the spacer coincides with an axial distance between the polygonal profile of the bolt and the inner ring of the rolling bearing. This ensures that in the installed state, the polygonal profile engages positively and thus fixed in position in the receptacle of the machine part, whereby the bolt in conjunction with the flange nut ensures a permanent attachment of the guide roller.
  • Another embodiment relating to the design of the spacer and / or the sealing disc provides that these components include a capped section.
  • a close plant may preferentially These components can be achieved on the rolling bearing, which improves the sealing effect of these components while reducing the required installation space.
  • the sealing effect of the spacer and the sealing disc can be improved by a separate sealant is introduced in the region of a gap between the spacer or the sealing disc on the one hand and the outer bearing ring of the bearing or a region of the running disk on the other hand.
  • a highly viscous fluid such as formed by a grease grease collar or impregnated with a sealant felt ring is suitable. This preferably outside of the spacer and / or the sealing disc associated sealing means is guided in the installed state and compliance with a small gap to the associated component with which the spacer or the sealing washer interacts.
  • Embodiments illustrate the invention, which are described in more detail below.
  • Figure 1 is a sectional view of the construction of a guide roller according to the invention.
  • FIG. 2 shows a deflection roller according to the invention in the installed state;
  • Figure 3 in perspective the bolt as a single part, which is provided for attachment of the deflection roller.
  • the structure of the deflection roller 1 shown in Figure 1 comprises a roller bearing 2, the outer ring 3 is enclosed by a plastic disk 4 made of plastic.
  • a pulling means, not shown in FIG. 1, of a traction mechanism drive is guided on a lateral surface 5 of the running disk 4.
  • An inner ring 6 of the rolling bearing 2 serves to receive a screw connection 7, which is designed as a screw bolt 8. Via a screw head 9, the bolt 8 is supported on the front side on the inner ring 6 of the rolling bearing 2 and thus centered about a centering 10, the roller bearing 2.
  • des- sen component width defines an axial distance of the rotor disk 4 and thus the guide roller 1 to a machine part 12 shown in Figure 2, on which the guide roller 1 is supported and secured.
  • the end plate 1 1 is bent at right angles and forms a board 17, which concerns a hub 18 of the rotor disk 4 engages over a limited, whereby a sealing labyrinth 19 sets.
  • the design of the spacer 1 1 further comprises a crank 20, which is a close Guide the spacer 11 on the frontal contour of the rolling bearing 2 allows.
  • the designated as a multi-function part spacer 1 1 further forms with the bolt 8 a captive 21.
  • the spacer 11 is provided with a circumferential or partially arranged embossment 22 in the region of a central bore, to achieve a radial overlap with respect to a Outer diameter of the bolt 8 positively engages in an undercut 23 of the bolt 8.
  • a sealing means 25 is introduced in order to achieve an improved seal.
  • a sealing means 25 to arrange a felt ring or a highly viscous fluid in a Umlaufnut, thereby forming a circumferential fat collar, on the one hand friction on the other hand ensures an effective seal.
  • the rolling bearing 2 is assigned to seal a sealing washer 26.
  • the sealing disc 26 inserted between the screw head 9 and the inner ring 6 of the rolling bearing 2 extends radially, while maintaining a gap measure 27 to an inner side of the hub 18 of the running disk 4.
  • the guide roller 1 shows the guide roller 1 in the installed state, wherein the individual components are shown in perspective in conjunction with a partial section. In this case, the close contact of the deflection roller on the machine part 12 is visible, connected to a small space required for the deflection roller 1 in the axial direction.
  • the attachment of the guide roller 1 by means of the screw 7, the bolt 8 is provided for receiving the components sealing washer 26, roller bearing 2 and spacer 11.
  • the polygonal profile 13 engages positively in the corresponding receptacle 14 of the machine part 12, also referred to as the control box lid.
  • the screw head 9 of the bolt 8 is supported directly axially from the sealing disc 26, wherein all the components guided directly on the bolt 8 are braced against the end wall of the machine part 12 by turning the flange nut 16 on the threaded pin 15.
  • a washer 30 is inserted between the flange nut 16 and the machine part 12.
  • the screw head 9 of the bolt 8 is provided with a tool holder 31.
  • the tool holder 31 designed, for example, as a hexagon socket is intended for a separate tool, such as an Allen wrench, with which the screw bolt 8 can be rotated and aligned relative to the machine part 12.
  • FIG. 3 shows the bolt 8 as an individual part in perspective. Except for the polygonal profile 13 of the bolt 8 is designed rotationally symmetrical. In this case, the bolt 8 is stepped radially several times starting from the screw head 9. The centering portion 9, which is fitted in the installed state in the inner ring 6 of the rolling bearing 2, thereby adjoins directly to the screw head 9. The axially bounded by the polygonal profile 13 and the centering 10 center portion 32 is provided for receiving the spacer 1 1. At the end remote from the screw head 9, the screw bolt 8 forms the threaded pin 15, which forms a section of the smallest diameter. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Pulleys (AREA)

Abstract

La présente invention concerne une poulie de renvoi (1) qui est fixée à une pièce de machine (12) au moyen d'un élément de vissage (7). A cet effet, l'élément de vissage (7) qui se présente sous la forme d'une tige filetée (8), vient en prise par liaison de forme dans une partie de réception correspondante (14) de la pièce de machine (12), par l'intermédiaire d'un profil polygonal (13). Au profil polygonal (13) se raccorde une goupille filetée (15) introduite à travers la pièce de machine (12), qui sert à recevoir un écrou à embase (16).
PCT/EP2006/069106 2005-12-17 2006-11-30 Fixation d'une poulie de renvoi WO2007068595A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005060531.1 2005-12-17
DE102005060531A DE102005060531A1 (de) 2005-12-17 2005-12-17 Befestigung einer Umlenkrolle

Publications (1)

Publication Number Publication Date
WO2007068595A1 true WO2007068595A1 (fr) 2007-06-21

Family

ID=37781820

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/069106 WO2007068595A1 (fr) 2005-12-17 2006-11-30 Fixation d'une poulie de renvoi

Country Status (2)

Country Link
DE (1) DE102005060531A1 (fr)
WO (1) WO2007068595A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049904A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Rolle mit Rollenzapfen zur Befestigung in einer Sacklochbohrung oder einer Durchgangsbohrung
DE102007049902A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Kurvenrolle zur Befestigung in einer Sacklochbohrung oder einer Durchgangsbohrung
DE102007049901A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Kurvenrolle zur Befestigung in einer Sacklochbohrung oder einer Durchgangsbohrung
DE102007049903A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Kurvenrolle
WO2010012435A1 (fr) * 2008-07-28 2010-02-04 Ab Skf Galet
DE102009017192A1 (de) * 2009-04-09 2010-10-14 Aktiebolaget Skf Lageranordnung für eine Tragrolle
US20110111900A1 (en) * 2008-06-23 2011-05-12 Aktiebolaget Skf Pulley Device for Tensioning Idler or Runner Roller
WO2014026776A1 (fr) * 2012-08-16 2014-02-20 Schaeffler Technologies AG & Co. KG Assemblage tournant par boulon imperdable d'un rail de serrage ou de guidage, ainsi que mécanisme de traction
CN103697038A (zh) * 2013-10-29 2014-04-02 彩琪有限公司 止推螺栓

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012206257A1 (de) 2012-04-17 2013-10-17 Schaeffler Technologies AG & Co. KG Anordnung zur Befestigung einer Rolle
DE102012207140A1 (de) 2012-04-27 2013-10-31 Schaeffler Technologies AG & Co. KG Anordnung zur Befestigung einer Stütz- oder Kurvenrolle
FR3038021B1 (fr) * 2015-06-24 2017-07-28 Skf Ab Dispositif de poulie pour galet tendeur ou enrouleur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1528890A (fr) * 1967-05-03 1968-06-14 Poulie montée sur roulements à billes à chape orientable, démontable
DE4242293A1 (fr) * 1991-12-18 1993-06-24 Ntn Toyo Bearing Co Ltd
DE29720776U1 (de) * 1997-11-22 1998-01-15 Skf Gmbh, 97421 Schweinfurt Befestigungsvorrichtung für Riemenrollen
DE19836191A1 (de) * 1998-08-10 2000-02-17 Schaeffler Waelzlager Ohg Befestigungsvorrichtung für eine Riemenrolle
WO2002021005A1 (fr) * 2000-09-06 2002-03-14 Ina-Schaeffler Kg Poulie de deviation pour un entrainement de mecanisme de traction
US20040235599A1 (en) * 2003-05-20 2004-11-25 Michel Ozorak Load spreader

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1528890A (fr) * 1967-05-03 1968-06-14 Poulie montée sur roulements à billes à chape orientable, démontable
DE4242293A1 (fr) * 1991-12-18 1993-06-24 Ntn Toyo Bearing Co Ltd
DE29720776U1 (de) * 1997-11-22 1998-01-15 Skf Gmbh, 97421 Schweinfurt Befestigungsvorrichtung für Riemenrollen
DE19836191A1 (de) * 1998-08-10 2000-02-17 Schaeffler Waelzlager Ohg Befestigungsvorrichtung für eine Riemenrolle
WO2002021005A1 (fr) * 2000-09-06 2002-03-14 Ina-Schaeffler Kg Poulie de deviation pour un entrainement de mecanisme de traction
US20040235599A1 (en) * 2003-05-20 2004-11-25 Michel Ozorak Load spreader

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007049902A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Kurvenrolle zur Befestigung in einer Sacklochbohrung oder einer Durchgangsbohrung
DE102007049901A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Kurvenrolle zur Befestigung in einer Sacklochbohrung oder einer Durchgangsbohrung
DE102007049903A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Kurvenrolle
DE102007049901B4 (de) * 2007-10-18 2017-08-24 Schaeffler Technologies AG & Co. KG Kurvenrolle zur Befestigung in einer Sacklochbohrung oder einer Durchgangsbohrung
DE102007049904A1 (de) 2007-10-18 2009-04-23 Schaeffler Kg Rolle mit Rollenzapfen zur Befestigung in einer Sacklochbohrung oder einer Durchgangsbohrung
US9028352B2 (en) * 2008-06-23 2015-05-12 Aktiebolaget Skf Pulley device for tensioning idler or runner roller
US20110111900A1 (en) * 2008-06-23 2011-05-12 Aktiebolaget Skf Pulley Device for Tensioning Idler or Runner Roller
WO2010012435A1 (fr) * 2008-07-28 2010-02-04 Ab Skf Galet
DE102009017192B4 (de) * 2009-04-09 2011-04-28 Aktiebolaget Skf Lageranordnung für eine Tragrolle
US9121441B2 (en) 2009-04-09 2015-09-01 Aktiebolaget Skf Bearing assembly for a support roller
DE102009017192A1 (de) * 2009-04-09 2010-10-14 Aktiebolaget Skf Lageranordnung für eine Tragrolle
WO2014026776A1 (fr) * 2012-08-16 2014-02-20 Schaeffler Technologies AG & Co. KG Assemblage tournant par boulon imperdable d'un rail de serrage ou de guidage, ainsi que mécanisme de traction
CN103697038A (zh) * 2013-10-29 2014-04-02 彩琪有限公司 止推螺栓

Also Published As

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