FR2955161A1 - Universal spherical cardan joint for transmitting torque between axles, has male element with grooves sectioning trapeze, and set of needle/roller type rolling elements arranged on cylindrical bottom face of lower part of junction element - Google Patents

Universal spherical cardan joint for transmitting torque between axles, has male element with grooves sectioning trapeze, and set of needle/roller type rolling elements arranged on cylindrical bottom face of lower part of junction element Download PDF

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Publication number
FR2955161A1
FR2955161A1 FR1002032A FR1002032A FR2955161A1 FR 2955161 A1 FR2955161 A1 FR 2955161A1 FR 1002032 A FR1002032 A FR 1002032A FR 1002032 A FR1002032 A FR 1002032A FR 2955161 A1 FR2955161 A1 FR 2955161A1
Authority
FR
France
Prior art keywords
rolling elements
male
female
elements
grooves
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
FR1002032A
Other languages
French (fr)
Inventor
Patrick Beguin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR1002032A priority Critical patent/FR2955161A1/en
Priority to FR1002293A priority patent/FR2955162B1/en
Publication of FR2955161A1 publication Critical patent/FR2955161A1/en
Pending legal-status Critical Current

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
    • F16D3/30—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected in which the coupling is specially adapted to constant velocity-ratio
    • F16D3/34—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected in which the coupling is specially adapted to constant velocity-ratio parts being connected by ridges, pins, balls, or the like guided in grooves or between cogs
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/207—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially inwardly from the coupling part

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The joint has a set of rolling elements (5) arranged between a cylindrical part of a junction element and a hollow cylindrical part of a female element (2). Another set of rolling elements (6) is arranged on side surfaces of a lower part of the junction element, where the latter set of rolling elements is tapered in shape. Grooves of a male element (3) section a trapeze with side extensions secant on center of spheres of the male and female elements. A set of needle or roller type rolling elements (7) is arranged on a cylindrical bottom face of the lower part of the junction element.

Description

- La présente invention consiste à des améliorations des demandes de brevet Françaises N° 10/00132 et N° 10/01130 portant sur un nouveau joint mécanique de jonction entre deux axes avec ses dérivés et permettant de transmettre d'une manière homocinétique ou non selon les variantes un couple d'un axe à un autre. 1 L'invention des demandes de brevet Françaises N° 10/00132 et N° 10/01130 permettent de réaliser une jonction de type cardan entre deux axes tout en transmettant potentiellement un couple supérieur aux possibilités d'un cardan classique grâce à l'utilisation de 2 sphères imbriquées reliées à leur périphérie par 2 éléments de jonction de type bille ou cylindre. The present invention consists of improvements to French patent applications Nos. 10/00132 and 10/01130 relating to a new mechanical joint joining two axes with its derivatives and making it possible to transmit in a homokinetic manner or not according to variants a couple from one axis to another. The invention of the French patent applications No. 10/00132 and No. 10/01130 allow a cardan-type junction between two axes while potentially transmitting a torque greater than the possibilities of a conventional cardan thanks to the use 2 nested spheres connected at their periphery by 2 ball or cylinder type connecting elements.

La présente invention porte sur 1 amélioration : Amélioration N°1 : la présente amélioration porte essentiellement sur l'élément de jonction (4) entre les parties mâle et femelle. The present invention relates to improvement: Improvement No. 1: the present improvement relates essentially to the joining element (4) between the male and female parts.

L'élément de jonction est remplacé par une pièce de forme plus complexe (4) afin d'augmenter la capacité du joint à transmettre un couple important. The joint member is replaced by a more complex piece (4) to increase the seal capacity to transmit a large torque.

L'élément de jonction est constitué d'un corps (4) et de pièces de roulement (5, 6 et 7). Cet élément peut être constitué de plusieurs éléments. La partie supérieure de l'élément de jonction est de forme cylindrique. Cette forme autorise la rotation de l'élément de jonction par rapport à l'élément femelle suivant un axe confondu avec l'axe du cylindre et passant par le centre de la sphère intérieure de l'élément femelle. Des éléments de roulement (5) peuvent être rajoutés entre la partie cylindrique de l'élément de jonction et la partie cylindrique creuse de l'élément femelle afin de réduire les frottements. The joining element consists of a body (4) and rolling parts (5, 6 and 7). This element can consist of several elements. The upper part of the connecting element is cylindrical. This shape allows rotation of the connecting element with respect to the female element along an axis coinciding with the axis of the cylinder and passing through the center of the inner sphere of the female element. Bearing elements (5) can be added between the cylindrical part of the connecting element and the hollow cylindrical part of the female element in order to reduce friction.

La partie inférieure de l'élément de jonction possède sensiblement la même section que la rainure de jonction de l'élément mâle (3) afin de remplir partiellement cette dernière. La surface de contact entre la rainure de l'élément mâle (3) et l'élément de jonction (4) est donc sensiblement supérieure que lors de l'utilisation d'une bille ou d'un cylindre. The lower part of the connecting element has substantially the same section as the connecting groove of the male element (3) to partially fill the latter. The contact surface between the groove of the male element (3) and the connecting element (4) is therefore substantially greater than when using a ball or a cylinder.

Cet élément ne doit pas dépasser du volume de la sphère de l'élément male afin de permettre le glissement de l'élément femelle sur l'élément male. Des éléments de roulement peuvent être rajoutés. Sur les faces latérales de la partie inférieure : les éléments de roulement (6) sont de forme tronconique dont l'axe et la génératrice passe par le centre des sphères des éléments mâle et femelle afin de transmettre le maximum de couple et de limiter les frottements lors des mouvement de rotation selon un axe perpendiculaire à celui de l'élément mâle de l'élément de jonction dans la gorge de l'élément mâle. De ce fait, les gorges de l'élément mâle auront pour section un trapèze dont les 40 prolongements cotés sont sécants sur le centre des sphères des éléments mâle et femelle. Sur la face de dessous de la partie inférieure, de forme générale cylindrique, des éléments de roulement (7) de type aiguilles ou rouleaux peuvent être ajoutés afin de limiter les frottements lors du dépassement de l'élément de jonction le long 45 de la gorge de l'élément mâle. This element must not exceed the volume of the sphere of the male element to allow the sliding of the female element on the male element. Rolling elements can be added. On the lateral faces of the lower part: the rolling elements (6) are of frustoconical shape whose axis and the generator passes through the center of the spheres of the male and female elements in order to transmit the maximum torque and to limit the friction during the rotational movement along an axis perpendicular to that of the male element of the connecting element in the groove of the male element. As a result, the grooves of the male element will have for section a trapezium whose 40 side extensions are intersecting on the center of the spheres of the male and female elements. On the underside of the lower part, of generally cylindrical shape, bearing elements (7) of the needle or roller type may be added in order to limit the friction when passing the connecting element along the throat. of the male element.

Claims (1)

Revendications1. Revendication N°1 : Joint universel de cardan REVENDICATIONS1. Revendication N°1 : Joint universel de cardan sphérique destiné à transmettre un couple entre deux axes selon l'une quelconque des revendications des demandes de brevet Françaises N° 10/00132 et N° 10/01130, caractérisé en ce qu'il améliore le joint décrit dans les demandes de brevet Françaises N° 10/00132 et N° 10/01130 grâce au remplacement des éléments de jonction entre les parties 10 mâle et femelle de type bille ou cylindre par une pièce de forme plus complexe (4) afin d'augmenter la capacité du joint à transmettre un couple important, la partie supérieure de l'élément de jonction est de forme cylindrique, des éléments de roulement (5) pouvant être rajoutés entre la partie cylindrique de l'élément de jonction et la partie cylindrique creuse de l'élément femelle afin de réduire les 15 frottements, la partie inférieure de l'élément de jonction possède sensiblement la même section que la rainure de jonction de l'élément mâle (3) afin de remplir partiellement cette dernière, des éléments de roulement (5) peuvent être rajoutés entre la partie cylindrique de l'élément de jonction et la partie cylindrique creuse de l'élément femelle (2) afin de réduire les frottements, des éléments de 20 roulement (6) peuvent être ajoutés sur les faces latérales de la partie inférieure, ils sont de forme tronconique dont l'axe et la génératrice passe par le centre des sphères des éléments mâle et femelle, dans ce cas, les gorges de l'élément mâle (3) auront pour section un trapèze dont le prolongement des cotés sont sécants sur le centre des sphères des éléments mâle et femelle, des éléments de 25 roulement (7) de type aiguilles ou rouleaux peuvent être ajoutés sur la face de dessous de la partie inférieure qui a une forme générale cylindrique. 30 35 40 45 50 Revendications1. Claim 1: Universal universal joint CLAIMS1. Claim 1: Universal spherical universal joint for transmitting torque between two shafts according to any one of the claims of French Patent Application Nos. 10/00132 and 10/01130, characterized in that it improves the seal described in French Patent Applications No. 10/00132 and No. 10/01130 by replacing the connecting elements between the male and female parts of the ball or cylinder type by a piece of more complex shape (4) in order to increase the capacity of the joint to transmit a large torque, the upper part of the connecting element is of cylindrical shape, rolling elements (5) can be added between the cylindrical part of the connecting element and the cylindrical part hollow of the female element in order to reduce friction, the lower part of the joining element has substantially the same section as the connecting groove of the male element (3) in order to fill r partially the latter, rolling elements (5) can be added between the cylindrical portion of the connecting element and the hollow cylindrical portion of the female element (2) to reduce friction, rolling elements ( 6) can be added on the lateral faces of the lower part, they are of frustoconical shape whose axis and the generator passes through the center of the spheres of the male and female elements, in this case, the grooves of the male element ( 3) will have for section a trapezium whose extension of the sides are intersecting on the center of the spheres of the male and female elements, rolling elements (7) of the type needles or rollers may be added on the underside of the lower part which has a generally cylindrical shape. 30 35 40 45 50
FR1002032A 2010-01-14 2010-05-12 Universal spherical cardan joint for transmitting torque between axles, has male element with grooves sectioning trapeze, and set of needle/roller type rolling elements arranged on cylindrical bottom face of lower part of junction element Pending FR2955161A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1002032A FR2955161A1 (en) 2010-05-12 2010-05-12 Universal spherical cardan joint for transmitting torque between axles, has male element with grooves sectioning trapeze, and set of needle/roller type rolling elements arranged on cylindrical bottom face of lower part of junction element
FR1002293A FR2955162B1 (en) 2010-01-14 2010-06-01 SEAL OF CARDAN SPERIC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1002032A FR2955161A1 (en) 2010-05-12 2010-05-12 Universal spherical cardan joint for transmitting torque between axles, has male element with grooves sectioning trapeze, and set of needle/roller type rolling elements arranged on cylindrical bottom face of lower part of junction element

Publications (1)

Publication Number Publication Date
FR2955161A1 true FR2955161A1 (en) 2011-07-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1002032A Pending FR2955161A1 (en) 2010-01-14 2010-05-12 Universal spherical cardan joint for transmitting torque between axles, has male element with grooves sectioning trapeze, and set of needle/roller type rolling elements arranged on cylindrical bottom face of lower part of junction element

Country Status (1)

Country Link
FR (1) FR2955161A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2803877A1 (en) 2013-05-16 2014-11-19 Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi Cardan joint supported with central unit
IT202100020348A1 (en) * 2021-07-29 2023-01-29 Giuseppe Banfi IMPROVED ARTICULATED JOINT FOR TRANSMISSION OF MOTION BETWEEN TWO SHAFTS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2803877A1 (en) 2013-05-16 2014-11-19 Tirsan Kardan Sanayi Ve Ticaret Anonim Sirketi Cardan joint supported with central unit
IT202100020348A1 (en) * 2021-07-29 2023-01-29 Giuseppe Banfi IMPROVED ARTICULATED JOINT FOR TRANSMISSION OF MOTION BETWEEN TWO SHAFTS
EP4124771A1 (en) 2021-07-29 2023-02-01 Giuseppe Banfi Articulated joint for transmitting rotation between two shafts with pivot pins extending radially inwardly from the outer coupling part

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