WO2010043453A1 - Chaîne - Google Patents

Chaîne Download PDF

Info

Publication number
WO2010043453A1
WO2010043453A1 PCT/EP2009/061719 EP2009061719W WO2010043453A1 WO 2010043453 A1 WO2010043453 A1 WO 2010043453A1 EP 2009061719 W EP2009061719 W EP 2009061719W WO 2010043453 A1 WO2010043453 A1 WO 2010043453A1
Authority
WO
WIPO (PCT)
Prior art keywords
chain
link plates
chain according
groove
link
Prior art date
Application number
PCT/EP2009/061719
Other languages
German (de)
English (en)
Inventor
Michael Bogner
Christian Hoffinger
Original Assignee
Schaeffler Technologies Gmbh & Co. 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 Technologies Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2010043453A1 publication Critical patent/WO2010043453A1/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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/02—Driving-chains
    • F16G13/04—Toothed chains
    • 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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/02—Driving-chains
    • F16G13/06—Driving-chains with links connected by parallel driving-pins with or without rollers so called open links

Definitions

  • the present invention relates to a chain, which has link plates with holes for guiding bolts, and a guide surface delimiting the link plates, wherein the guide surface is in engagement with a drive wheel and wherein a joint surface is adjacent to the guide surface.
  • a chain of the aforementioned type is known from WO2007 / 069792 A1.
  • the chain has several tooth-shaped link plates. There are locating holes in the link plates which allow the link plates to be bolted to form a chain.
  • a straight groove extends from a tip of a tooth to the receiving bore of the bolt. This groove is intended to receive oil. Due to the tensile and compressive forces acting on the chain, the area between the receiving bore of the link plates and the bolt is particularly susceptible to wear. In order to minimize friction and thus wear, it is advantageous to use lubricants, e.g. To bring engine oil in the area between the receiving bore and the bolt.
  • the invention is therefore based on the object to provide a durable chain with optimized friction conditions between link plates and bolts.
  • the link plates have at least one curved groove which extends between the guide surface and the bore. It offers itself there to introduce a groove, which causes a weakening of the material, since this area is least burdened with tensile and compressive forces.
  • the curved groove has an arcuate curvature or has a circular arc shape. It is also conceivable that the curved groove is designed as a transition arc.
  • the transition arc is a connecting element. It is characterized by the fact that it has a different radius of curvature at each point. This causes the curvature to become slower and not abruptly narrower during the transition between the individual circular arcs.
  • the most commonly used transition arches are clothoids.
  • centrifugal forces acting on the oil force it on a curved path.
  • the centrifugal forces acting on the oil can be used to advantage, running as a lubricant channel groove are also curved, so that the oil from outside the tabs is promoted by utilizing the centrifugal forces in the direction of the bolt.
  • the guide surface of the link plates on a tooth shape each tooth shape having an inner tooth flank and an outer tooth flank and extending between the region of the tooth flank and the hole formed in the link plates a curved groove.
  • a preferred embodiment provides two curved grooves per link plate, either being on the front or back, or one on the front and one on the back, respectively.
  • Another preferred embodiment provides four curved grooves per link plate, two on the front and two on the back.
  • the link plates including the grooves in a single punching process or a second sub-punching process.
  • the guide surfaces and / or the tooth flank can be produced by means of fine blanking, fine blanking or regrooving.
  • the chain may be e.g. be designed as a roller chain or sleeve chain.
  • the aforementioned chain is used as a timing chain in internal combustion engines.
  • FIG. 1a shows a chain link of a chain with a tooth-shaped profile and curved grooves
  • FIG. 1 b another chain link of a chain with curved grooves
  • Figure 2a is a schematic representation of a mounted chain in plan view, with introduced into the link plates grooves.
  • FIG. 2b shows an embodiment of a joint lug and an inner lug with variants for introducing the curved grooves
  • FIG. 3a is a schematic plan view of a mounted chain, with grooves inserted in the link plates,
  • Figure 3b shows a link plate with a formed respectively on the front and back of the link plate groove.
  • Figure 1a shows a link plate (K) with tooth-shaped profile, which has two holes (1), which are provided during chain mounting for receiving a bolt. Furthermore, the link plate (K) has a joint surface (3) which laterally delimits the link plate (K) and, in the mounted state, adjoins the joint surface (3) of an adjacent link plate (K).
  • the tooth-shaped profile has both an inner tooth flank (5a) and an outer tooth flank (5b). In the area between the inner and outer tooth flank (5a, 5b) and the bore (1) serving to receive the bolt, a curved groove (4) is made.
  • FIG. 2b shows a link plate (K), in FIG in the described area, two grooves (4) are arranged front and back.
  • this variant is only suitable for link plates (K), from a certain material thickness, since the link plates (K) would otherwise lose rigidity.
  • Figure 3b shows a Ausprogressivelyu ⁇ gsform which is particularly suitable for narrow link plates (K). It is envisaged to introduce two grooves (4) per link plate (K), either being located either on the front or back or only one each on the front and one on the back.
  • the course of the grooves (4) can be formed, as shown by way of example in FIG. 3b, in such a way that a groove (4) on the front side of the link plate (K) extends from the inner tooth flank (5a) to the bore (1) while the other groove (4) on the secondary tooth profile on the back of the link plate (K) from the outer tooth flank (5b) to the bore (1) out.
  • other combinations are possible which determine the position and course of the grooves (4) within the link plates (K).
  • the shape of the link plate (K) shown in FIG. 1b is mostly used in roller or sleeve chains. It also has two holes (1) which are provided for receiving a chain link plates (K) connecting bolt.
  • the link plate (K) opposing guide surfaces (2) and the guide surfaces (2) laterally limiting hinge surfaces (3).
  • the grooves (4) arranged in different numbers within the link plates (K) can likewise be formed on the front and / or rear side of the link plate (K). It is important that the grooves (4) are not formed in the area between joint surface (3) and bore (1), but between the guide surface (2) and bore (1), since the area between the joint surface (3) and the bore (1) tends to rip under heavy load.
  • FIGS. 2 a and 3 a show in each case a schematic structure of a chain, which consists of a middle inner link (IL), joint plates (GL) arranged on both sides and which enclose the joint and inner link Outer tabs (AL) exists.
  • the joint and inner plates (GL, IL) can be individual tabs or tab packages. It may be advantageous to provide the outer plates (AL) with grooves (4).
  • the abovementioned tabs are mounted non-rotatably on the basis of their mutually aligned bores by means of a bolt (B). Since the grooves (4) introduced into the joint and inner plates (GL, IL) can vary in their position and their course, different possibilities arise for overlapping the grooves during assembly.
  • FIG. 2a shows a chain in which the hinge and inner plates (GL, IL) each have four grooves (4).
  • the hinge lugs (GL) differ from the inner lug (IL) in such a way that the arrangement of the grooves (4) of the hinge lug (GL) is mirror-inverted to the arrangement of the grooves (4) of the inner lug (IL).
  • This different arrangement of the grooves (4) within the hinge and inner plate (GL, IL) has the advantage that when assembling the link plate (K) to a chain there is a multiple overlap of the grooves (4).
  • FIG. 3a shows a chain in which narrower link plates (K), which have only two grooves (4) per link plate (K), are arranged as described in FIG. 3b.
  • all link plates (K) regardless of whether it is a joint flap (GL) or an inner flap (IL), in the same manner, bezgl.
  • the shape and position of the grooves (4) made This has the advantage that in the chain assembly does not have to be paid attention to different tabs or their installation position during assembly.

Landscapes

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

Abstract

L'invention concerne une chaîne comprenant des maillons de chaîne avec des trous (1) pour guider des tourillons (B) ainsi qu'avec des surfaces de guidage (2) limitant les maillons de chaîne, les surfaces de guidage étant en prise avec une roue d'entraînement et une surface d'articulation (3) étant adjacente aux surfaces de guidage (2) et au moins certains des maillons de chaînes présentant une rainure curviligne (4) qui court entre la surface de guidage (2) et le trou (1).
PCT/EP2009/061719 2008-10-18 2009-09-10 Chaîne WO2010043453A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008052276.7 2008-10-18
DE102008052276.7A DE102008052276B4 (de) 2008-10-18 2008-10-18 Kette

Publications (1)

Publication Number Publication Date
WO2010043453A1 true WO2010043453A1 (fr) 2010-04-22

Family

ID=41259570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/061719 WO2010043453A1 (fr) 2008-10-18 2009-09-10 Chaîne

Country Status (2)

Country Link
DE (1) DE102008052276B4 (fr)
WO (1) WO2010043453A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014142024A1 (fr) 2013-03-11 2014-09-18 東レ株式会社 Composition de résine époxy, pré-imprégné, et matériau composite renforcé par fibres

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191225197A (en) * 1912-11-04 1913-09-11 Renold Hans Ltd Improvements in and connected with Driving Chains.
GB109932A (en) * 1917-03-14 1917-10-04 Renold Hans Ltd Improvements relating to Driving Chains.
FR523849A (fr) * 1919-08-23 1921-08-25 Marcel Sebin Dispositif de graissage pour chaines silencieuses à grande vitesse
WO2007069792A1 (fr) * 2005-12-14 2007-06-21 Borgwarner Morse Tec Japan K.K. Eclisse pour une chaine silencieuse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5759727Y2 (fr) * 1980-01-09 1982-12-20
DE3016596A1 (de) 1980-04-30 1981-11-05 Fa. Andreas Stihl, 7050 Waiblingen Anordnung zum schmieren von saegeketten an motorsaegen
JPS5954248U (ja) * 1982-09-30 1984-04-09 ボ−グ・ワ−ナ−・オ−トモ−ティブ株式会社 歯付チエ−ン
DE202004015697U1 (de) 2004-10-11 2006-02-23 Joh. Winklhofer & Söhne GmbH und Co KG Rollenkette, insbesondere für einen Ventiltrieb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191225197A (en) * 1912-11-04 1913-09-11 Renold Hans Ltd Improvements in and connected with Driving Chains.
GB109932A (en) * 1917-03-14 1917-10-04 Renold Hans Ltd Improvements relating to Driving Chains.
FR523849A (fr) * 1919-08-23 1921-08-25 Marcel Sebin Dispositif de graissage pour chaines silencieuses à grande vitesse
WO2007069792A1 (fr) * 2005-12-14 2007-06-21 Borgwarner Morse Tec Japan K.K. Eclisse pour une chaine silencieuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014142024A1 (fr) 2013-03-11 2014-09-18 東レ株式会社 Composition de résine époxy, pré-imprégné, et matériau composite renforcé par fibres

Also Published As

Publication number Publication date
DE102008052276A1 (de) 2010-04-22
DE102008052276B4 (de) 2020-06-18

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