EP4374091A1 - Outil de montage pour une transmission à courroie et procédé de montage d'une courroie sur la transmission à courroie - Google Patents

Outil de montage pour une transmission à courroie et procédé de montage d'une courroie sur la transmission à courroie

Info

Publication number
EP4374091A1
EP4374091A1 EP22730570.3A EP22730570A EP4374091A1 EP 4374091 A1 EP4374091 A1 EP 4374091A1 EP 22730570 A EP22730570 A EP 22730570A EP 4374091 A1 EP4374091 A1 EP 4374091A1
Authority
EP
European Patent Office
Prior art keywords
belt
roller
rotation
pulley
hook
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.)
Pending
Application number
EP22730570.3A
Other languages
German (de)
English (en)
Inventor
Joachim Blochowitz
Martin PASCHOLD
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.)
Stellantis Auto SAS
Original Assignee
Stellantis Auto SAS
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 Stellantis Auto SAS filed Critical Stellantis Auto SAS
Publication of EP4374091A1 publication Critical patent/EP4374091A1/fr
Pending 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/24—Equipment for mounting belts, ropes, or chains

Definitions

  • the disclosure relates to a belt drive, an installation tool for a belt drive and a method for installing a belt on the belt drive.
  • a strap is flexible and to some extent also elastic.
  • a belt is formed from a base material of rubber or elastomer and various reinforcing fibers and reinforcing fabrics.
  • Belt drives often have a tension pulley or a component that keeps the belt under tension (power steering pump, air conditioning compressor, starter generator, alternator, etc.).
  • EP 1 089 016 B1 discloses a tool for manually mounting V-belts, the tool being clamped between the belt and the pulley and pulled around the pulley.
  • the belt is deflected by one of the side walls of the tool guided in the pulley onto the outer circumference of the pulley.
  • an installation tool for a belt drive and a method for installing a belt on the belt drive are to be specified, with which a belt under tension can be installed.
  • the independent claims relate to such an assembly tool, the belt drive and a method for assembling the belt.
  • the dependent claims form advantageous developments of the disclosure.
  • the dependent claims can be combined with one another in a technologically meaningful manner.
  • an assembly tool for assembling a belt on a belt drive, which in an assembled state wraps around at least one first roller and at least one second roller mounted so as to be rotatable about an axis of rotation under tension, the assembly tool having a hook which engages with one of the rollers can be brought, and a pressing surface which is arranged relative to the hook so that the when the hook is hooked into the pulley, the belt is pressed flat onto the pulley so that the belt wraps around the pulley after the pulley has rotated about the axis of rotation when the hook is hooked.
  • the belt is a poly-V belt.
  • the rollers have a receiving area with grooves that are shaped to correspond to elevations provided on the inner circumference of the poly-V belt. Manually it is difficult to fit the projections into the rolls. One tensioning roller can be saved with the assembly tool.
  • the rollers can be arranged opposite one another in such a way that a correspondingly long belt, which wraps around these rollers, is under tension.
  • the hook is shaped to match the reel. It is hooked onto the roller during assembly. The assembly tool is then tilted around the pulley and the poly-V belt such that the poly-V belt is clamped between the pressing surface and a belt-receiving area of the pulley.
  • the hook and the pressing surface are formed on a one-piece part made of a metallic material.
  • the one-piece part is milled or cast from a block. It should retain its geometry even after prolonged use, which is why it is preferably a one-piece part.
  • a notch corresponding to a circumferential collar on the roller is arranged for aligning the assembly tool relative to the roller.
  • the pressure surface fixes the poly-V belt essentially flat on the receiving area.
  • the Poly-V belt extends out of the pressure surface during assembly (see Figure 1), there is a notch on the pressure surface that nestles against a circumferential collar on the pulley and ensures that the assembly tool is held securely the role.
  • the assembly tool is suitable for a belt drive with a belt, having at least a first roller, which is mounted so that it can rotate about an axis of rotation and a belt, and a second roller, which is mounted so that it can rotate about a second axis of rotation and which has a receiving area that has grooves for Having recording a belt, wherein the first axis of rotation is dimensioned relative to the second axis of rotation and the belt such that the belt is under tension when the belt wraps around both pulleys.
  • the assembly can be completed by a fitter in one movement. During the movement, the belt is pulled up at the same time, while a torque is applied to the roller in order to continue to rotate it according to the subsequent angle of wrap.
  • Also provided is a method of assembling a belt to at least two pulleys comprising the steps of: i. providing at least a first roll; which is rotatably mounted about a first axis of rotation; ii. providing a strap, iii. wrapping the belt around the first pulley; IV. Providing a second roller, which is mounted rotatably about a second axis of rotation and which has a receiving area which has grooves for receiving a belt designed as a poly-V belt, the first axis of rotation being designed relative to the second axis of rotation and the belt in such a way, that the belt without an idler pulley is under tension when the belt wraps around both pulleys; and V.
  • FIG. 1 shows a belt drive with a belt, having at least a first roller, which is mounted so as to be rotatable about an axis of rotation, and a belt, and a second roller, which is mounted so as to be rotatable about a second axis of rotation;
  • FIG. 2 shows a one-piece part of a mounting tool for mounting a belt on a belt drive, the mounting tool having a hook which can be brought into engagement with one of the rollers and a pressing surface; and
  • Figure 3 shows the installation tool with a handle mounted thereon which facilitates applying torque to a pulley to pull the belt onto the pulley.
  • Figure 1 shows a belt drive 20 with a belt 21, having at least a first roller 23, which is rotatably mounted about an axis of rotation 23A and a belt 21, and a second roller 24, which is mounted rotatably about a second axis of rotation 24A.
  • the rollers 23, 24 have a receiving area 26 in which grooves for receiving a Roly-V belt 21 are incorporated.
  • the first axis of rotation 23A is dimensioned relative to the second axis of rotation 24A and the belt 21 such that the belt 21 is under a tensile stress 22 without a tensioning roller when the belt 21 wraps around both rollers 23, 24.
  • the rollers 23, 24 have a receiving area 26 with grooves which are shaped to correspond to elevations provided on the belt 21 on the inner circumference. It is manually difficult to fit the projections into the rollers 23,24. With the assembly tool 10, one tensioning roller can be saved under certain circumstances. Furthermore, auxiliary tools can be dispensed with, since the first roller (the one on which the belt is already lying) is also rotated when it is pulled on.
  • the rollers 23, 24 can be arranged opposite one another in such a way that a correspondingly long belt, which wraps around these rollers 23, 24, is under the tension 22 mentioned.
  • Figure 2 shows a one-piece part 13 of an assembly tool 10 for mounting a belt 21 on a belt drive 20.
  • the one-piece part 13 is milled or cast from a block. It should retain its geometry even after prolonged use, which is why it is preferably a one-piece part 12 .
  • the assembly tool 10 has a hook 11 which can be brought into engagement with one of the rollers 23 .
  • the assembly tool 10 has a pressing surface 12, which is arranged relative to the hook 11 in such a way that when the hook 11 is hooked into the roller, the belt 21 presses flatly onto the roller 24, so that the belt 21, after a rotation of the roller 24 wraps around the axis of rotation 24A when the hook 11 is hooked on the roller 24 .
  • the hook 11 extends out of the pressing surface 12.
  • FIG. 3 shows the complete assembly tool 10 for the assembly of a belt 21 on a belt drive 20 according to FIG.
  • At least one bore 16 for attaching a handle 15 is arranged in the one-piece part 13 .
  • the handle 15 can have numerous geometries adapted to the application.
  • the handle 15 is not shown proportionally.
  • the handle 15 can be made longer so that the fitter can apply a correspondingly high torque to the roller 24 .
  • the hook 11 is shaped to correspond at least to the second roller 24 . It is hooked onto the roller 24 during assembly.
  • the notch 14 then encompasses a collar 28 on the roller 24, as a result of which the assembly tool 10 is pre-fixed in relation to the roller 24 in such a way that the assembler can exert a high clamping force on the belt 21.
  • the assembly tool 10 is tilted around the collar 28 on the roller 24 onto the belt 21 such that the belt 21 is clamped between the pressing surface 12 and a receiving area 26 of the roller 24 for the belt 21 .
  • the pressing surface 12 fixes the belt 21 essentially flat on the receiving area 26 so that a force or a torque can be transmitted. Where the belt 21 still extends out of the pressing surface 12 during assembly, there is a notch 14 on the pressing surface 12,
  • a belt 21 represents a non-positive traction drive. This is part of a Belt drive 20, in which a torque is transmitted by the frictional forces acting in the contact area between the belt and the rollers 23, 24.
  • the rollers 23, 24 are essentially formed from a disk mounted so as to be rotatable about an axis of rotation 23A, 24A and an essentially cylindrical section with grooves.
  • the Poly-V belt 21 fits into the grooves.
  • the section 25 of the belt 21 which is not yet in flush contact with the corresponding section of the roller 24 during assembly protrudes from the pressing area 12 .
  • the assembly tool lends itself to a method of assembling a belt 21 to at least two pulleys 23, 24 comprising the steps of: i. providing at least a first roll 23; which is rotatably mounted about a first axis of rotation 23A; ii. providing a strap 21, iii. wrapping the belt around the first pulley 23; IV.

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 un outil de montage (10) pour le montage d'une courroie (21) sur une transmission à courroie (20) qui, à l'état monté, entoure au moins un premier rouleau (23) et au moins un second rouleau (24) monté rotatif sur un axe de rotation (24A) sous une tension de traction (22), l'outil de montage (10) présentant un crochet (11) qui peut être mis en prise avec l'un des rouleaux (23), ainsi qu'une surface de pression (12) qui est disposée par rapport au crochet (11) de manière que celle-ci, lorsque le crochet (11) est accroché au rouleau, pousse la courroie (21) à plat contre le rouleau (24), la courroie (21) entourant alors le rouleau (24) après une rotation du rouleau (24) sur l'axe de rotation (24A) lorsque le crochet (11) est accroché.
EP22730570.3A 2021-07-20 2022-06-01 Outil de montage pour une transmission à courroie et procédé de montage d'une courroie sur la transmission à courroie Pending EP4374091A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021207701.3A DE102021207701A1 (de) 2021-07-20 2021-07-20 Montagewerkzeug für einen Riementrieb sowie ein Verfahren zur Montage eines Riemens auf dem Riementrieb
PCT/EP2022/064883 WO2023001438A1 (fr) 2021-07-20 2022-06-01 Outil de montage pour une transmission à courroie et procédé de montage d'une courroie sur la transmission à courroie

Publications (1)

Publication Number Publication Date
EP4374091A1 true EP4374091A1 (fr) 2024-05-29

Family

ID=82058168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22730570.3A Pending EP4374091A1 (fr) 2021-07-20 2022-06-01 Outil de montage pour une transmission à courroie et procédé de montage d'une courroie sur la transmission à courroie

Country Status (3)

Country Link
EP (1) EP4374091A1 (fr)
DE (1) DE102021207701A1 (fr)
WO (1) WO2023001438A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1573651A (en) * 1925-01-13 1926-02-16 Ernest A Smith Belt tool
FR2753766B1 (fr) 1996-09-20 1998-11-27 Courroie striee, son procede de fabrication et dispositif de transmission la comprenant
IT1308851B1 (it) 1999-09-28 2002-01-11 Fiat Auto Spa Attrezzo per il montaggio di una cinghia di trasmissione su unapuleggia e per lo smontaggio della cinghia stessa dalla relativa
JP4860460B2 (ja) 2006-12-28 2012-01-25 富士重工業株式会社 ベルト取付方法、ベルト取付治具、ベルト着脱方法及びベルト着脱治具
JP5271930B2 (ja) * 2009-03-26 2013-08-21 三ツ星ベルト株式会社 ベルト取付治具と、このベルト取付治具を用いたベルト取付方法
US9568073B2 (en) * 2010-06-17 2017-02-14 Bando Chemical Industries, Ltd. Belt attachment jig
WO2012008062A1 (fr) * 2010-07-13 2012-01-19 ゲイツ・ユニッタ・アジア株式会社 Outil de montage de courroie

Also Published As

Publication number Publication date
DE102021207701A1 (de) 2023-01-26
WO2023001438A1 (fr) 2023-01-26

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