[go: up one dir, main page]

WO2021239172A1 - Chaîne à maillons en plaques dotée de contact fondé sur charge en deux parties entre une plaque et une tige de culbuteur, et transmission à variation continue - Google Patents

Chaîne à maillons en plaques dotée de contact fondé sur charge en deux parties entre une plaque et une tige de culbuteur, et transmission à variation continue Download PDF

Info

Publication number
WO2021239172A1
WO2021239172A1 PCT/DE2021/100310 DE2021100310W WO2021239172A1 WO 2021239172 A1 WO2021239172 A1 WO 2021239172A1 DE 2021100310 W DE2021100310 W DE 2021100310W WO 2021239172 A1 WO2021239172 A1 WO 2021239172A1
Authority
WO
WIPO (PCT)
Prior art keywords
radius
area
trough
shoulder
plate
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.)
Ceased
Application number
PCT/DE2021/100310
Other languages
German (de)
English (en)
Inventor
Pascal Fritz
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and 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 AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of WO2021239172A1 publication Critical patent/WO2021239172A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16G5/00—V-belts, i.e. belts of tapered cross-section
    • F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
    • F16G5/18—V-belts, i.e. belts of tapered cross-section consisting of several parts in the form of links

Definitions

  • Plate chain with two-part, load-dependent contact between a plate and a pressure piece; as well as continuously variable transmission
  • the invention relates to a plate-link chain for a continuously variable belt drive, with a plurality of plates and several pairs of rocker pressure pieces received in holes in the plates, each plate having two spaced-apart longitudinal brackets aligned in the longitudinal direction and two longitudinal brackets each connecting the longitudinal brackets to one another at one of their ends, the hole together with the longitudinal brackets enclosing side brackets, a (first) rocker pressure piece un ter formation of a first contact point with a first shoulder area on a first trough area of the flap formed between a first side bracket and a first side bracket is supported and a radius of the first shoulder area is smaller than or equal to a radius of the first trough area.
  • the invention also relates to an infinitely variable belt drive made with this link chain.
  • Link chains and corresponding belt drives are already well known from the prior art.
  • DE 102016207216 A1 discloses a belt and a kit for building a belt. Further prior art is known from DE 102015 112973 A1 and DE 3027 834 A1.
  • a second shoulder area adjoins the first shoulder area, in a direction away from the first side bar, which second shoulder area can be brought into contact with a second recess area adjoining the first recess area, forming a second contact point is, wherein a radius of the second trough area is matched to a radius of the second shoulder area that the (first) rocker pressure piece is only in direct contact with the tab when a certain tensile force to be transmitted is exceeded in the second contact point.
  • two contact points are made available, of which the first contact point is used for the defined setting of an optimal force vector (while reducing a bending moment) and the second contact point, which comes into contact with the rocker pressure piece with increasing load, is used to form a stop.
  • the first contact point is used for the defined setting of an optimal force vector (while reducing a bending moment)
  • the second contact point which comes into contact with the rocker pressure piece with increasing load, is used to form a stop.
  • the radius of the second trough area is larger than the radius of the second shoulder area. This releases the radius of the second shoulder area on the rocker pressure piece without load.
  • the radius of the second trough area is 10% to 50% larger than the radius of the second shoulder area.
  • the radius of the first shoulder area is larger than the radius of the second shoulder area and a transition between the two radii of the shoulder areas changes continuously. This makes it possible to continuously increase the stop / contact area depending on the load. This reduces the pressure in the contact.
  • the radius of the second trough area is larger than the radius of the first trough area and a transition between the two radii of the trough areas changes continuously.
  • the radius of the second trough area continuously widens to a side facing away from the radius of the first trough area. This ensures an exemption and the force is preferably always introduced via the first contact point. This allows manufacturing tolerances to have less of an influence on the force vector.
  • a (first) arc length of the first trough area is equal to a (second) arc length of the first shoulder area. This results in a system that is as defined as possible in the first contact point.
  • a center of a (first) arc length of the first trough area is equal to a center of a (second) arc length of the first shoulder area.
  • a normal running through the middle of the first trough area includes an angle between 58 ° and 70 ° with a longitudinal axis of the tab, as defined, low bending load causing force vectors are generated at the contact point. Accordingly, it is also expedient if a normal running through the center of the first hollow area also encloses an angle between 58 ° and 70 ° with the longitudinal axis of the bracket.
  • the invention also relates to an infinitely variable belt drive for a drive train of a motor vehicle, with a pair of drive disks, a pair of driven disks and a link chain according to the invention, according to at least one of the embodiments described above, which connects the pair of drive disks and the pair of driven disks with one another.
  • a two-part, load-dependent contact between the tab and the corresponding rocker pressure piece is implemented.
  • the contact between the bracket and the rocker pressure piece has a primary contact (first contact point) and thus enables a defined force vector.
  • stops are provided in the vertical brackets, which only come into contact with the rocker pressure piece under load (second contact point). With a lower load and with less elastic deformation (almost only primary contacts are effective), an optimal force vector is established. When the load is higher, the rocker pressure piece comes into contact with the stops (secondary radii). However, elastic slip is hindered. This changes the force vector only slightly.
  • FIG. 1 shows a perspective illustration of a section of a link chain according to the invention to illustrate its basic structure
  • Fig. 2 is a detailed representation of a contact area between a rocker pressure piece and a tab for the formation of two contact points
  • Fig. 3 is a side view of the bracket and the cradle pressure piece of Fig. 2, both an outer and an inner contact area between the cradle pressure piece and the bracket can be seen,
  • FIG. 4 shows a detailed illustration of the contact area from FIG. 2, with a force vector acting during operation being drawn in, as well as
  • FIG. 5 shows a simplified representation of a continuously adjustable belt drive having the link chain according to the invention.
  • a link chain 1 according to the invention can be seen clearly in FIG. 1.
  • the link chain 1 has a plurality of link plates 3, which are each coupled to adjacent link plates 3 via rocker pressure piece pairs 5.
  • Each tab 3 has a hole 4 which is formed at each axial end of the tab 3 for receiving a Wiegetik Industriespaa res 5.
  • Each rocker pressure piece pair 5 has, in the usual way, two like print pieces 9a, 9b, which rest against one another in a tiltable manner along a rolling path.
  • FIG. 5 A preferred area of application of the link chain 1 is indicated in connection with FIG. 5, in which a continuously variable belt transmission 2 is shown schematically.
  • the link chain 1 is used in this embodiment between a drive disk pair 26 and a driven disk pair 27 of the belt drive 2 acting.
  • a tab 3 is shown together with a first rocker pressure piece 9a of the print piece pair 5 as.
  • the tab 3 has two longitudinal brackets 6a, 6b that run in the longitudinal direction / along its longitudinal axis 25 and are spaced apart from one another, as well as two side brackets 8a, 8b that run transversely thereto.
  • the longitudinal bracket 6a, 6b are via a first or a second side bracket 8a, 8b connected to one another.
  • the brackets 6a, 6b, 8a, 8b to close the hole 4, each of which has a side bracket 8a, 8b in the mounted to the link chain 1 a cradle pressure piece 5 receives.
  • FIG. 3 is an example of that (first) contact area between a first cradle pressure piece 9a and the first longitudinal bracket 6a to a first side bracket 8a shows GE, these embodiments of course also for a further (second) contact area between the same first cradle pressure piece 9a and the second side bracket 6b apply to the first side bracket 8a. Furthermore, the two (first and second) contact areas between the first rocker pressure piece 9a of the other rocker pressure piece pair 5 on the part of the second side bracket 8b are implemented in this way.
  • the one with the FIGS. 2 and 4, the contact area shown in more detail has two contact points 10, 18 offset from one another along an inner circumference 28 of the tab 3.
  • a first contact point 10 is formed between a first shoulder area 11 of the first rocker pressure piece 9a and a first trough area 12 (in the transition area between the first longitudinal bracket 6a and the first side bracket 8a) of the tab 3.
  • the two areas 11, 12 of the first contact point 10 have the same radius in this embodiment, the respective radius being constant over a certain arc length.
  • the radius of the first shoulder region 11 is identified as the first shoulder radius 13, whereas the radius of the first depression region 12 is identified as the first depression radius 15.
  • first shoulder radius 13 is smaller than the first recess radius 15.
  • the normal 24 runs normal to the inner circumference 28. That normal 24 is thus defined directly by the centers 22, 23 of the arc lengths of the areas 11 and 12 running in the circumferential direction.
  • the normal 24 encloses an angle a with a longitudinal axis 25 of the bracket 3. This angle a is preferably chosen between 58 ° and 70 °.
  • a second contact point 18 is now provided following the first contact point 10.
  • This second contact point 18 is seen along the inner circumference 28 on the side of the first contact point 10 facing the first side bracket 8a, which is principally designed in such a way that the tab 3 and the first rocker pressure piece 9a only come into direct contact there when a the tensile force to be transmitted exceeds a minimum value.
  • the second contact point 18 is formed between a further second shoulder area 17, which, viewed in the circumferential direction of the tab 3, directly adjoins the first shoulder area 11, and a second trough area 19, which second trough area 19 connects directly to the first trough area 12 in the circumferential direction forms.
  • the second trough area 19 is already assigned to the side bracket 8a.
  • the second shoulder area 17 and the second trough area 19 are also each rounded over a certain arc length with a radius.
  • a (second) shoulder radius 14 of the second shoulder area 17 is selected to be smaller than the first shoulder radius 13.
  • the second trough radius 16 of the second trough area 19 is greater than the second shoulder radius 14.
  • a (first) transition 20 between the two shoulder regions 11, 17 runs continuously. Accordingly, the radius at the transition 20 between the first shoulder area 11 and the second shoulder area 17 of the first rocker pressure piece 9a increases continuously up to the second shoulder radius 14.
  • the radius also changes continuously at a second transition 21 between the first trough region 12 and the second trough region 19.
  • this second trough area 19 widens continuously.
  • contacts 10 are implemented between tab 3 and rocker pressure piece 9a, which each form primary contacts that enable a defined force vector.
  • stops 18 are provided in the vertical brackets 8a, 8b, which only come into contact with the rocker pressure piece 9a under load. With a low load and low elastic deformation (almost only primary contacts 10 are effective), an optimal force vector is established. When the load is higher, however, the cradle pressure piece 9a comes into contact with the stops (secondary radii) 18. This hinders elastic slippage. The force vector changes only slightly as a result.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

L'invention concerne une chaîne (1) à maillons en plaques destinée à une transmission à variation continue (2), la chaîne comprenant une pluralité de plaques (3) et une pluralité de paires de tiges de culbuteur (5) reçues dans des trous (4) des plaques (3), chaque plaque (3) présentant deux sections longitudinales (6a, 6b) espacées l'une de l'autre et orientées dans la direction de traction, et deux sections latérales (8a, 8b) reliant ensemble chaque section longitudinale (6a, 6b) à l'une de ses extrémités (7a, 7b) et entourant le trou (4) conjointement avec les sections longitudinales (6a, 6b). Une tige de culbuteur (9a) est portée contre une première région en creux (12) de la plaque (3), formée entre une première section longitudinale (6a) et une première section latérale (8a), formant ainsi un premier point de contact (10) avec une première région d'épaulement (11), et le rayon (13) de la première région d'épaulement (11) est inférieur ou égal au rayon (15) de la première région en creux (12). Une seconde région d'épaulement (17) est adjacente à la première région d'épaulement (11) dans une direction orientée à l'opposée à la première section longitudinale (6a), ladite seconde région d'épaulement (17) étant amenée en contact avec une seconde région en creux (19) adjacente à la première région en creux (12), formant ainsi un second point de contact (18), le rayon (16) de la seconde région en creux (19) correspondant au rayon (14) de la seconde région d'épaulement (17), de sorte que la tige de culbuteur (9a) se mette directement en contact avec la plaque (3) sur le second point de contact (18) lorsqu'une force de traction spécifique à transmettre est dépassée. L'invention concerne en outre une transmission à variation continue (2) comprenant ladite chaîne (1) à maillons en plaque.
PCT/DE2021/100310 2020-05-28 2021-03-30 Chaîne à maillons en plaques dotée de contact fondé sur charge en deux parties entre une plaque et une tige de culbuteur, et transmission à variation continue Ceased WO2021239172A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020114285.4 2020-05-28
DE102020114285.4A DE102020114285B3 (de) 2020-05-28 2020-05-28 Laschenkette mit zweiteiligem, lastabhängigem Kontakt zwischen einer Lasche und einem Wiegedruckstück; sowie stufenlos verstellbares Getriebe

Publications (1)

Publication Number Publication Date
WO2021239172A1 true WO2021239172A1 (fr) 2021-12-02

Family

ID=75639629

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2021/100310 Ceased WO2021239172A1 (fr) 2020-05-28 2021-03-30 Chaîne à maillons en plaques dotée de contact fondé sur charge en deux parties entre une plaque et une tige de culbuteur, et transmission à variation continue

Country Status (2)

Country Link
DE (1) DE102020114285B3 (fr)
WO (1) WO2021239172A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3027834A1 (de) 1980-07-23 1982-02-11 P.I.V. Antrieb Werner Reimers GmbH & Co KG, 6380 Bad Homburg Laschenkette fuer stufenlos verstellbare kegelscheibengetriebe
US5423724A (en) * 1991-10-17 1995-06-13 Borg-Warner Automotive, Inc. Interlaced single pin rocker joint chain
WO2006133667A2 (fr) * 2005-06-14 2006-12-21 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Chaine articulee
DE102016207216A1 (de) 2015-05-11 2016-11-17 Schaeffler Technologies AG & Co. KG Umschlingungsmittel und Bausatz zum Aufbau eines Umschlingungsmittels
DE102015112973A1 (de) 2015-08-06 2017-02-09 Jungheinrich Aktiengesellschaft Anhänger für einen Routenzug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4803423B2 (ja) 2005-10-14 2011-10-26 株式会社ジェイテクト 動力伝達チェーンおよびこれを備える動力伝達装置
DE102006046600A1 (de) 2005-10-26 2007-05-03 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kettenlasche, diese beinhaltende Kette, sowie damit gebildeter Kettenrtieb und damit ausgerüstetes Fahrzeug
JP6298736B2 (ja) 2014-08-08 2018-03-20 株式会社豊田中央研究所 無段変速機及び無段変速機を設計する方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3027834A1 (de) 1980-07-23 1982-02-11 P.I.V. Antrieb Werner Reimers GmbH & Co KG, 6380 Bad Homburg Laschenkette fuer stufenlos verstellbare kegelscheibengetriebe
US5423724A (en) * 1991-10-17 1995-06-13 Borg-Warner Automotive, Inc. Interlaced single pin rocker joint chain
WO2006133667A2 (fr) * 2005-06-14 2006-12-21 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Chaine articulee
DE102016207216A1 (de) 2015-05-11 2016-11-17 Schaeffler Technologies AG & Co. KG Umschlingungsmittel und Bausatz zum Aufbau eines Umschlingungsmittels
DE102015112973A1 (de) 2015-08-06 2017-02-09 Jungheinrich Aktiengesellschaft Anhänger für einen Routenzug

Also Published As

Publication number Publication date
DE102020114285B3 (de) 2021-09-16

Similar Documents

Publication Publication Date Title
DE10083638B4 (de) Laschenkette
DE4332447A1 (de) Kettenriemen
DE3151728C2 (de) Laschenkette für stufenlos einstellbare Kegelscheibengetriebe
DE19929823B4 (de) Geräuscharme Kette
WO2020048562A1 (fr) Lien souple et transmission à variation continue dotée de celui-ci
DE60206553T2 (de) CVT-Kettenriemen mit an Kettenlaschen auf oder zwischen Bolzenenden angebrachten Verschleisskissen
EP1819939B1 (fr) Chaine articulee destinee notamment a une transmission de vehicule
WO2021239172A1 (fr) Chaîne à maillons en plaques dotée de contact fondé sur charge en deux parties entre une plaque et une tige de culbuteur, et transmission à variation continue
DE102019132481B4 (de) Laschenkette für ein stufenlos verstellbares Getriebe, sowie Verfahren zur Herstellung einer Laschenkette
EP1893890A2 (fr) Chaine articulee
DE102019114950B4 (de) Stanzteil zur Weiterverarbeitung zu einer Lasche für eine Laschenkette
EP1566568A2 (fr) Plaquette métallique pour chaíne à éclisses fortement sollicitée et ensemble pignon-chaíne correspondant pour transmission à élément de traction
DE102020129934B4 (de) Laschenkette und Kegelscheibenumschlingungsgetriebe
DE102020130154B4 (de) Laschenkette und Kegelscheibenumschlingungsgetriebe
DE102018120871A1 (de) Wiegedruckstückpaar für eine Laschenkette und Umschlingungsmittel mit derartiger Laschenkette
DE102020112028A1 (de) Umschlingungsmittel und Baukastensystem zum Aufbau eines derartigen Umschlingungsmittels
WO2006058528A1 (fr) Chaine articulee destinee notamment a une transmission de vehicule
EP4102100A1 (fr) Liaison
DE102024107098A1 (de) Geräuscharme Kette und Kettenantriebssystem
DE102006046600A1 (de) Kettenlasche, diese beinhaltende Kette, sowie damit gebildeter Kettenrtieb und damit ausgerüstetes Fahrzeug
DE102021127905A1 (de) Laschenkette mit spanfrei abgeschrägtem Sicherungselement und Verfahren zur Herstellung einer Laschenkette
DE102020109159A1 (de) Laschenkette
DE102020112067A1 (de) CVT-Kette mit optimiertem Führungsspiel sowie CVT-Getriebe mit CVT-Kette
DE102020112409A1 (de) Umschlingungsmittel, Baukastensystem zum Aufbau einer entsprechenden Wiegedruckstück-Laschen-Anordnung und Getriebe mit Umschlingungsmittel
DE102018119922A1 (de) Umschlingungsmittel und CVT-Getriebe mit selbigem

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21720681

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 21720681

Country of ref document: EP

Kind code of ref document: A1