WO2010040679A1 - Clamping device - Google Patents

Clamping device Download PDF

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Publication number
WO2010040679A1
WO2010040679A1 PCT/EP2009/062742 EP2009062742W WO2010040679A1 WO 2010040679 A1 WO2010040679 A1 WO 2010040679A1 EP 2009062742 W EP2009062742 W EP 2009062742W WO 2010040679 A1 WO2010040679 A1 WO 2010040679A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
clamping device
clamping piece
piece
tensioning
Prior art date
Application number
PCT/EP2009/062742
Other languages
German (de)
French (fr)
Inventor
Marcelo Ramos Falcao
Reinhard Koch
Christopher Krawietz
Christian Nuissl
Jürgen Stölzle
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
Priority to CN200980139917.7A priority Critical patent/CN102177366B/en
Priority to BRPI0920393A priority patent/BRPI0920393A8/en
Publication of WO2010040679A1 publication Critical patent/WO2010040679A1/en

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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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • 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
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0806—Compression coil springs
    • 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
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • F16H2007/0853—Ratchets
    • 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
    • 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

Definitions

  • Clamping device to compensate for elongations of a traction device, in particular a chain or a toothed belt, a traction drive, in particular on an internal combustion engine, with a pivotally mounted clamping means, in particular clamping rail or clamping arm with tension roller, wherein between the clamping means and a support surface on the internal combustion engine, a clamping element is arranged ,
  • Such a clamping device with a hydraulic tensioning element is well known.
  • This clamping element is connected to the oil pressure supply of the internal combustion engine, so that a pressure oil loaded piston generates the clamping force.
  • Such a clamping element has the disadvantage that it must be connected to an oil supply and for a suitable line, bore or the like must be provided. This is associated with effort and costs.
  • such a hydraulic tensioning element forms an engagement in the oil pressure supply of the internal combustion engine, which is undesirable.
  • the object of the invention is therefore to produce a cost-effective functionally adapted clamping device which is not dependent on an oil supply.
  • the clamping device should be easily adapted to various applications and installation spaces.
  • the object of the invention is achieved in that the clamping element forms with the clamping means such a structural unit, that the clamping element is guided on a raceway of the clamping means and is designed as a clamping piece and that the raceway relative to the support surface on the internal combustion engine forms an angle.
  • clamping and clamping element required, which must be coordinated.
  • the existing clamping element and clamping device assembly is easy to manufacture and also saves space.
  • the tensioning means designed as a tensioning rail on a supporting body, on which a sliding lining attached, preferably hooked.
  • Both the support body and the sliding coating are made of plastic, preferably made of polyamide 66 and nylon 66 glass fiber, so that a high strength including abrasion resistance and low weight are given.
  • the supporting body is another weight-saving reduction (as shown in particular in the figures) provided with recesses and struts.
  • the track is made in one piece with the support body, wherein grooves are provided laterally of the track on the support body, in which gripping hooks of the clamping piece are arranged. As a result, a very good guidance and attachment of the clamping piece is given to the track.
  • the clamping piece is further supported by a spring between the clamping piece and the support body, wherein preferably a compression spring is provided which is arranged on the one hand on a mandrel of the support body and on the other hand in an opening of the clamping piece.
  • the mandrel on the support body preferably has a chamfering along the dome, whereby the assembly of the clamping piece is facilitated.
  • the raceway and the clamping piece further comprise mating locking ramps, which fix the clamping piece against the force of the compression spring on the track. It is thereby achieved that the clamping piece due to the force of the compression spring compensates for the elongation of the traction means and the traction means is tensioned and thereby secured against the backrest by the locking ramps for supporting vibrations of the traction means.
  • a tab with hooks is further provided, which is connectable in the tensioned position of the compression spring with a counter hook on the support body. This entanglement serves as a captive and mounting aid of the clamping piece on the track for the transport position.
  • the inclination of the executed as an acute angle between the track and support surface angle changes, of course, depending on the position of the clamping piece on the track and displacement of the clamping piece on the support surface of the internal combustion engine.
  • the contact surface of the clamping piece to the support surface is carried out crowned to ensure a clear line contact between clamping piece and support surface, taking into account the change in the angle inclination.
  • the support surface on the internal combustion engine is flat and smooth for easy movement of the clamping piece along the adjustment.
  • FIG. 1 shows a perspective view of a tensioning device in which the clamping piece has been extended
  • FIG 2 is a perspective view of a clamping device according to Figure 1, in which a symbolic support surface is shown and
  • Figure 3 a cross section through a clamping device with clamping piece, in which the clamping piece is retracted and hooked to the supporting body.
  • 1 denotes a supporting body, which is part of a clamping means.
  • the support body 1 serves as a receptacle for a sliding coating 2, which is fixed by means of snap hooks 3 on the support body 1.
  • On the back of the sliding lining 2 is located on the support body 1 an angled linear track 5, which is adjacent to a support surface 4 of the internal combustion engine (see Fig. 2).
  • a compression spring 9 is arranged, which is arranged on the one hand on a mandrel 10 which is fixed to the support body 1, and on the other hand in an opening 11 in the clamping piece 6.
  • the mandrel 10 has a chamfer 12 (see Figure 3) along the dome 10, which facilitates the assembly of the clamping piece 6.
  • locking ramps 13 are incorporated, which are in operative connection with corresponding locking ramps on the clamping piece 6. This locking ramps 13 allow easy adjustment of the traction device the tensioning device due to the force of the compression spring 9, but prevent unwanted yielding.
  • a tab 14 is worked, which has a hook 15 which communicates with a counter hook 16 on the support body 1 in such a way that the clamping piece can be hooked in the retracted position with the support body (see Figure 3).
  • the clamping piece 6 has a contact surface 17, which is designed crowned.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention relates to a clamping device for compensating elongations of a tensioning means, comprising a clamping means, wherein a clamping element is disposed between the clamping means and a support surface (4) at the internal combustion engine, wherein the clamping element forms a design unit together with the clamping means, wherein the clamping element is led along a track (5) of the clamping means and is designed as a clamping piece (6) and wherein the track (5) makes an angle relative to the support surface (4).

Description

Bezeichnung der Erfindung Name of the invention
Spannvorrichtungjig
Beschreibungdescription
Gebiet der ErfindungField of the invention
Spannvorrichtung zum Ausgleich von Längungen eines Zugmittels, insbesondere einer Kette oder eines Zahnriemens, eines Zugmitteltriebes, insbesondere an einer Brennkraftmaschine, mit einem schwenkbar gelagerten Spannmittel, insbesondere Spannschiene oder Spannarm mit Spannrolle, wobei zwischen dem Spannmittel und einer Stützfläche an der Brennkraftmaschine ein Spannelement angeordnet ist.Clamping device to compensate for elongations of a traction device, in particular a chain or a toothed belt, a traction drive, in particular on an internal combustion engine, with a pivotally mounted clamping means, in particular clamping rail or clamping arm with tension roller, wherein between the clamping means and a support surface on the internal combustion engine, a clamping element is arranged ,
Hintergrund der ErfindungBackground of the invention
Eine derartige Spannvorrichtung mit einem hydraulischen Spannelement ist allgemein bekannt. Dieses Spannelement ist mit der Öldruckversorgung der Brennkraftmaschine verbunden, so dass ein druckölbelasteter Kolben die Spannkraft erzeugt. Ein derartiges Spannelement hat den Nachteil, dass es an einer Ölversorgung angeschlossen werden muss und dafür eine geeignete Leitung, Bohrung oder dergleichen vorgesehen werden müssen. Dies ist mit Aufwand und Kosten verbunden. Des Weiteren bildet ein derartiges hydraulisches Spannelement einen Eingriff in die Öldruckversorgung der Brennkraftmaschine, der unerwünscht ist.Such a clamping device with a hydraulic tensioning element is well known. This clamping element is connected to the oil pressure supply of the internal combustion engine, so that a pressure oil loaded piston generates the clamping force. Such a clamping element has the disadvantage that it must be connected to an oil supply and for a suitable line, bore or the like must be provided. This is associated with effort and costs. Furthermore, such a hydraulic tensioning element forms an engagement in the oil pressure supply of the internal combustion engine, which is undesirable.
Es ist weiterhin ein Spannelement bekannt, EP- 0 409 460 B1 , das eine mechanische Sperrklinke aufweist. Das Spannelement ermöglicht zwar ein Nachstellen, auch ohne Eingriff in die Öldruckversorgung, ist aber als getrenntes Bauteil ausgeführt und mit hohem Bauaufwand verbunden, da noch eine hydraulische Dämpfungseinheit vorgesehen ist.There is also known a clamping element, EP-0 409 460 B1, which has a mechanical pawl. Although the clamping element allows readjustment, even without intervention in the oil pressure supply, but is as a separate Executed component and connected with high construction costs, since a hydraulic damping unit is still provided.
Es ist auch noch bekannt, das Spannelement als mechanischen Schraubtrieb- Spanner auszubilden, EP- 0 869 298 B1. Der Bauaufwand dieses Spannelements ist aber noch größer, da sowohl eine Gewindeeinheit als auch eine Drehfeder in ein Gehäuse integriert werden müssen.It is also known to form the tensioning element as a mechanical screw-driving tensioner, EP-0 869 298 B1. The construction cost of this clamping element is even greater, since both a threaded unit and a torsion spring must be integrated into a housing.
Aufgabe der ErfindungObject of the invention
Aufgabe der Erfindung ist es daher, eine kostengünstige funktionell angepass- te Spannvorrichtung herzustellen, die nicht auf eine Ölversorgung angewiesen ist. Durch einen einfachen Aufbau soll die Spannvorrichtung leicht an verschiedene Anwendungen und Bauräume adaptiert werden können.The object of the invention is therefore to produce a cost-effective functionally adapted clamping device which is not dependent on an oil supply. With a simple design, the clamping device should be easily adapted to various applications and installation spaces.
Zusammenfassung der ErfindungSummary of the invention
Die Aufgabe der Erfindung wird dadurch gelöst, dass das Spannelement mit dem Spannmittel dergestalt eine Baueinheit bildet, dass das Spannelement auf einer Laufbahn des Spannmittels geführt und als Klemmstück ausgebildet ist und dass die Laufbahn gegenüber der Stützfläche an der Brennkraftmaschine einen Winkel einschließt.The object of the invention is achieved in that the clamping element forms with the clamping means such a structural unit, that the clamping element is guided on a raceway of the clamping means and is designed as a clamping piece and that the raceway relative to the support surface on the internal combustion engine forms an angle.
Durch diese Ausgestaltung sind keine zwei getrennten Bauteile, nämlichBy this embodiment, no two separate components, namely
Spannmittel und Spannelement erforderlich, die aufeinander abgestimmt wer- den müssen. Die aus Spannelement und Spannmittel bestehende Baueinheit ist einfach in der Herstellung und darüber hinaus raumsparend.Clamping and clamping element required, which must be coordinated. The existing clamping element and clamping device assembly is easy to manufacture and also saves space.
In vorteilhafter Ausgestaltung der Erfindung weist das als Spannschiene ausgebildete Spannmittel einen Tragkörper auf, an dem ein Gleitbelag befestigt, vorzugsweise verhakt ist. Sowohl der Tragkörper als auch der Gleitbelag sind aus Kunststoff, vorzugsweise aus Polyamid 66 und Polyamid 66 Glasfaser hergestellt, so dass eine hohe Festigkeit einschließlich Abriebsfestigkeit und ein geringes Gewicht gegeben sind. Der Tragkörper ist zur weiteren Gewichtsre- duzierung (wie insbesondere den Abbildungen zu entnehmen ist) mit Aussparungen und Streben versehen.In an advantageous embodiment of the invention, the tensioning means designed as a tensioning rail on a supporting body, on which a sliding lining attached, preferably hooked. Both the support body and the sliding coating are made of plastic, preferably made of polyamide 66 and nylon 66 glass fiber, so that a high strength including abrasion resistance and low weight are given. The supporting body is another weight-saving reduction (as shown in particular in the figures) provided with recesses and struts.
Die Laufbahn ist dabei einstückig mit dem Tragkörper hergestellt, wobei seitlich der Laufbahn am Tragkörper Nuten vorgesehen sind, in denen Greifhaken des Klemmstückes angeordnet sind. Dadurch ist eine sehr gute Führung und Befestigung des Klemmstückes an der Laufbahn gegeben. Das Klemmstück ist weiterhin durch eine Feder zwischen dem Klemmstück und dem Tragkörper abgestützt, wobei vorzugsweise eine Druckfeder vorgesehen ist, die einerseits auf einem Dorn des Tragkörpers und andererseits in einer Öffnung des Klemmstückes angeordnet ist. Der Dorn am Tragkörper weist vorzugsweise eine Anphasung längs des Domes auf, wodurch die Montage des Klemmstückes erleichtert wird.The track is made in one piece with the support body, wherein grooves are provided laterally of the track on the support body, in which gripping hooks of the clamping piece are arranged. As a result, a very good guidance and attachment of the clamping piece is given to the track. The clamping piece is further supported by a spring between the clamping piece and the support body, wherein preferably a compression spring is provided which is arranged on the one hand on a mandrel of the support body and on the other hand in an opening of the clamping piece. The mandrel on the support body preferably has a chamfering along the dome, whereby the assembly of the clamping piece is facilitated.
Die Laufbahn und das Klemmstück weisen weiterhin zueinander passende Rastrampen auf, die das Klemmstück entgegen der Kraft der Druckfeder auf der Laufbahn fixieren. Dadurch wird erreicht, dass das Klemmstück aufgrund der Kraft der Druckfeder die Längung des Zugmittels ausgleicht sowie das Zugmittel spannt und dabei zur Abstützung von Schwingungen des Zugmittels gegen Zurückweichen durch die Rastrampen gesichert ist. Am Klemmstück ist weiterhin eine Lasche mit Haken vorgesehen, der in der gespannten Stellung der Druckfeder mit einem Gegenhaken am Tragkörper verbindbar ist. Diese Verhakung dient als Verliersicherung und Montagehilfe des Klemmstückes auf der Laufbahn für die Transportstellung. Die Neigung des als spitzer Winkel zwischen Laufbahn und Stützfläche ausgeführten Winkels verändert sich natürlich je nach Stellung des Klemmstückes auf der Laufbahn und Verschiebung des Klemmstückes an der Stützfläche der Brennkraftmaschine. Die Kontaktfläche des Klemmstückes zur Stützfläche hin ist dabei ballig ausgeführt, um eine eindeutige Linienberührung zwischen Klemmstück und Stützfläche unter Berücksichtigung der Veränderung der Winkelneigung sicherzustellen. Die Stützfläche an der Brennkraftmaschine ist zur leichten Bewegung des Klemmstückes entlang des Verstellweges eben und glatt ausgeführt.The raceway and the clamping piece further comprise mating locking ramps, which fix the clamping piece against the force of the compression spring on the track. It is thereby achieved that the clamping piece due to the force of the compression spring compensates for the elongation of the traction means and the traction means is tensioned and thereby secured against the backrest by the locking ramps for supporting vibrations of the traction means. At the clamping piece a tab with hooks is further provided, which is connectable in the tensioned position of the compression spring with a counter hook on the support body. This entanglement serves as a captive and mounting aid of the clamping piece on the track for the transport position. The inclination of the executed as an acute angle between the track and support surface angle changes, of course, depending on the position of the clamping piece on the track and displacement of the clamping piece on the support surface of the internal combustion engine. The contact surface of the clamping piece to the support surface is carried out crowned to ensure a clear line contact between clamping piece and support surface, taking into account the change in the angle inclination. The support surface on the internal combustion engine is flat and smooth for easy movement of the clamping piece along the adjustment.
Kurze Beschreibung der Zeichnungen Zur weiteren Erläuterung der Erfindung wird auf die Zeichnungen verwiesen, in denen ein Ausführungsbeispiel der Erfindung vereinfacht dargestellt ist. Es zeigen:Brief description of the drawings For further explanation of the invention reference is made to the drawings, in which an embodiment of the invention is shown in simplified form. Show it:
Figur 1 : eine perspektivische Darstellung einer Spannvorrichtung, bei der das Klemmstück ausgefahren ist,FIG. 1 shows a perspective view of a tensioning device in which the clamping piece has been extended,
Figur 2: eine perspektivische Ansicht einer Spannvorrichtung gemäß Figur 1 , bei der eine symbolische Stützfläche dargestellt ist undFigure 2 is a perspective view of a clamping device according to Figure 1, in which a symbolic support surface is shown and
Figur 3: einen Querschnitt durch eine Spannvorrichtung mit Klemmstück, bei der das Klemmstück eingefahren und am Tragkörper verhakt ist.Figure 3: a cross section through a clamping device with clamping piece, in which the clamping piece is retracted and hooked to the supporting body.
Detaillierte Beschreibung der ZeichnungenDetailed description of the drawings
In den Figuren 1 bis 3 ist, soweit im Einzelnen dargestellt, mit 1 ein Tragkörper bezeichnet, der Bestandteil eines Spannmittels ist. Der Tragkörper 1 dient als Aufnahme für einen Gleitbelag 2, der mittels Schnapphaken 3 am Tragkörper 1 befestigt ist. Rückseitig zum Gleitbelag 2 befindet sich am Tragkörper 1 eine abgewinkelte lineare Laufbahn 5, die an einer Stützfläche 4 der Brennkraftmaschine benachbart ist (siehe Fig. 2). Auf der Laufbahn 5 ist ein mit 6 bezeichnetes Klemmstück verschiebbar angeordnet, das Greifhaken 7 aufweist, die in Nuten 8 im Tragkörper 1 neben der Laufbahn 5 eingehakt sind. Zwischen dem Tragkörper 1 und dem Klemmstück 6 ist eine Druckfeder 9 angeordnet, die einerseits auf einem Dorn 10, der am Tragkörper 1 befestigt ist, und andererseits in einer Öffnung 11 im Klemmstück 6 angeordnet ist. Der Dorn 10 weist eine Anphasung 12 (siehe Figur 3) längs des Domes 10 auf, die die Montage des Klemmstückes 6 erleichtert.In the figures 1 to 3, as far as shown in detail, 1 denotes a supporting body, which is part of a clamping means. The support body 1 serves as a receptacle for a sliding coating 2, which is fixed by means of snap hooks 3 on the support body 1. On the back of the sliding lining 2 is located on the support body 1 an angled linear track 5, which is adjacent to a support surface 4 of the internal combustion engine (see Fig. 2). On the track 5, a designated 6 clamping piece is slidably disposed, the gripping hooks 7, which are hooked in grooves 8 in the supporting body 1 in addition to the track 5. Between the support body 1 and the clamping piece 6, a compression spring 9 is arranged, which is arranged on the one hand on a mandrel 10 which is fixed to the support body 1, and on the other hand in an opening 11 in the clamping piece 6. The mandrel 10 has a chamfer 12 (see Figure 3) along the dome 10, which facilitates the assembly of the clamping piece 6.
In der Oberfläche der Laufbahn 5 sind Rastrampen 13 eingearbeitet, die mit entsprechenden Rastrampen am Klemmstück 6 in Wirkverbindung stehen. Diese Rastrampen 13 erlauben ein einfaches Nachstellen des Zugmittels durch die Spannvorrichtung aufgrund der Kraft der Druckfeder 9, verhindern aber ein ungewolltes Nachgeben.In the surface of the raceway 5 locking ramps 13 are incorporated, which are in operative connection with corresponding locking ramps on the clamping piece 6. This locking ramps 13 allow easy adjustment of the traction device the tensioning device due to the force of the compression spring 9, but prevent unwanted yielding.
An dem Klemmstück 6 ist eine Lasche 14 angearbeitet, die einen Haken 15 aufweist, der mit einem Gegenhaken 16 an dem Tragkörper 1 derart in Verbindung steht, dass das Klemmstück in eingefahrener Stellung mit dem Tragkörper verhakt werden kann (siehe Figur 3).On the clamping piece 6, a tab 14 is worked, which has a hook 15 which communicates with a counter hook 16 on the support body 1 in such a way that the clamping piece can be hooked in the retracted position with the support body (see Figure 3).
Um bei allen Stellungen des Klemmstückes 6 eine eindeutige Linienberührung zwischen Klemmstück 6 und Stützfläche 4 sicherzustellen, weist das Klemmstück 6 eine Kontaktfläche 17 auf, die ballig ausgeführt ist. In order to ensure a clear line contact between the clamping piece 6 and support surface 4 in all positions of the clamping piece 6, the clamping piece 6 has a contact surface 17, which is designed crowned.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Trag korper1 carrying body
2 Gleitbelag 3 Schnapphaken2 sliding coating 3 snap hooks
4 Stützfläche4 support surface
5 Laufbahn5 career
6 Klemmstück6 clamping piece
7 Greifhaken 8 Nuten7 gripping hooks 8 grooves
9 Druckfeder9 compression spring
10 Dorn10 thorn
11 Öffnung11 opening
12 Anphasung 13 Rastrampen12 chamfering 13 latching ramps
14 Lasche14 tab
15 Haken15 hooks
16 Gegenhaken16 counter hooks
17 Kontaktfläche 17 contact area

Claims

Patentansprüche claims
1. Spannvorrichtung zum Ausgleich von Längungen eines Zugmittels einer Brennkraftmaschine, die eine Stützfläche (4) zur Abstützung der Spannvorrichtung aufweist, mit einem Spannmittel und einem Spannelement, das zwischen dem Spannmittel und der Stützfläche (4) angeordnet, auf einer Laufbahn (5) des Spannmittels geführt und als Klemmstück (6) ausgebildet ist, wobei die Laufbahn (5) gegenüber der Stützfläche (4) einen spitzen Winkel einschließt, dadurch gekennzeichnet, dass das1. A tensioning device for compensating for elongations of a traction means of an internal combustion engine, which has a support surface (4) for supporting the tensioning device, with a tensioning means and a tensioning element arranged between the tensioning means and the support surface (4) on a raceway (5) of Guided tensioning means and as a clamping piece (6) is formed, wherein the raceway (5) relative to the support surface (4) includes an acute angle, characterized in that the
Klemmstück (6) eine Kontaktfläche (17) aufweist, welche dazu ausgebildet ist, die Stützfläche unmittelbar zu kontaktieren.Clamping piece (6) has a contact surface (17) which is adapted to contact the support surface directly.
2. Spannvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das Spannelement mit dem Spannmittel eine Baueinheit bildet.2. Clamping device according to claim 1, characterized in that the clamping element forms a structural unit with the clamping means.
3. Spannvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das als Spannschiene ausgebildete Spannmittel einen Tragkörper (1 ) aufweist, an dem ein Gleitbelag (2), vorzugsweise mittels Schnapp- haken (3), befestigt ist.3. Clamping device according to claim 1 or 2, characterized in that the tensioning device designed as a clamping rail has a supporting body (1) on which a sliding lining (2), preferably by means of snap-hook (3), is attached.
4. Spannvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Spannschiene aus Kunststoff, vorzugsweise unterschiedlichem Kunststoff für den Tragkörper (1 ) und den Gleitbelag (2), hergestellt ist.4. Clamping device according to one of claims 1 to 3, characterized in that the clamping rail made of plastic, preferably different plastic for the supporting body (1) and the sliding coating (2).
5. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Laufbahn (5) einstückig mit dem Tragkörper (1 ) hergestellt ist.5. Clamping device according to one of the preceding claims, characterized in that the raceway (5) is made in one piece with the supporting body (1).
6. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass seitlich der Laufbahn (5) am Tragkörper (1 ) Nu- ten (8) vorgesehen sind, in denen Greifhaken (7) des Klemmstückes (6) angeordnet sind.6. Clamping device according to one of the preceding claims, characterized in that the side of the track (5) on the support body (1) Nu- th (8) are provided, in which gripping hooks (7) of the clamping piece (6) are arranged.
7. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen Klemmstück (6) und Tragkörper (1 ) eine etwa parallel zur Laufbahn (5) angeordnete Feder vorgesehen ist.7. Clamping device according to one of the preceding claims, characterized in that between clamping piece (6) and supporting body (1) is provided an approximately parallel to the raceway (5) arranged spring.
8. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder als Druckfeder (9) ausgeführt ist und einerseits auf einem Dorn (10), des Tragkörpers (1 ) und andererseits in einer Öffnung (11 ) des Klemmstückes (6) angeordnet ist.8. Clamping device according to one of the preceding claims, characterized in that the spring is designed as a compression spring (9) and on the one hand on a mandrel (10), the supporting body (1) and on the other hand in an opening (11) of the clamping piece (6) is.
9. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Dorn (10) eine Anfasung (12) aufweist.9. Clamping device according to one of the preceding claims, characterized in that the mandrel (10) has a chamfer (12).
10. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an der Laufbahn (5) und dem Klemmstück (6) zueinander passende Rastrampen (13) vorgesehen sind.10. Clamping device according to one of the preceding claims, characterized in that on the raceway (5) and the clamping piece (6) mating locking ramps (13) are provided.
11. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Geometrie der Rastrampen (13) so gewählt ist, dass das Klemmstück (6) auf der Laufbahn (5) in eine Richtung fixierbar ist.11. Clamping device according to one of the preceding claims, characterized in that the geometry of the locking ramps (13) is selected so that the clamping piece (6) on the track (5) is fixable in one direction.
12. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Klemmstück (6) eine Lasche (14) mit Haken (15) vorgesehen ist, der in der gespannten Stellung der Druckfeder (9) mit einem Gegenhaken (16) am Tragkörper (1 ) verbindbar ist.12. Clamping device according to one of the preceding claims, characterized in that on the clamping piece (6) a tab (14) with hooks (15) is provided, which in the tensioned position of the compression spring (9) with a counter hook (16) on the support body (16). 1) is connectable.
13. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stützfläche (4) an der Brennkraftmaschine eben ausgeführt ist. 13. Clamping device according to one of the preceding claims, characterized in that the support surface (4) is flat on the internal combustion engine.
4. Spannvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kontaktfläche (17) des Klemmstücks (6) ballig ausgeführt ist. 4. Clamping device according to one of the preceding claims, characterized in that the contact surface (17) of the clamping piece (6) is designed crowned.
PCT/EP2009/062742 2008-10-09 2009-10-01 Clamping device WO2010040679A1 (en)

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Application Number Priority Date Filing Date Title
CN200980139917.7A CN102177366B (en) 2008-10-09 2009-10-01 Clamping device
BRPI0920393A BRPI0920393A8 (en) 2008-10-09 2009-10-01 TENSOR DEVICE

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Application Number Priority Date Filing Date Title
DE102008051143.9 2008-10-09
DE102008051143A DE102008051143A1 (en) 2008-10-09 2008-10-09 jig

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DE102011079612A1 (en) 2011-07-22 2013-01-24 Schaeffler Technologies AG & Co. KG jig
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DE102014211198A1 (en) 2014-06-12 2015-12-17 Schaeffler Technologies AG & Co. KG Clamping device for a traction mechanism drive
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Also Published As

Publication number Publication date
BRPI0920393A2 (en) 2016-03-22
CN102177366B (en) 2014-04-02
DE102008051143A1 (en) 2010-07-08
BRPI0920393A8 (en) 2017-10-10
CN102177366A (en) 2011-09-07

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