FR2744500A1 - Multi=bladed self centring cam for blocking cylindrical shafts - Google Patents

Multi=bladed self centring cam for blocking cylindrical shafts Download PDF

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Publication number
FR2744500A1
FR2744500A1 FR9601655A FR9601655A FR2744500A1 FR 2744500 A1 FR2744500 A1 FR 2744500A1 FR 9601655 A FR9601655 A FR 9601655A FR 9601655 A FR9601655 A FR 9601655A FR 2744500 A1 FR2744500 A1 FR 2744500A1
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FR
France
Prior art keywords
cylindrical
axis
cam
self
bladed
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.)
Granted
Application number
FR9601655A
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French (fr)
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FR2744500B1 (en
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR9601655A priority Critical patent/FR2744500B1/en
Publication of FR2744500A1 publication Critical patent/FR2744500A1/en
Application granted granted Critical
Publication of FR2744500B1 publication Critical patent/FR2744500B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/063—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by moving along the inner and the outer surface without pivoting or rolling, e.g. sliding wedges
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions
    • F16B7/1409—Telescoping systems locking in intermediate non-discrete positions with balls or rollers urged by an axial displacement of a wedge or a conical member
    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0817—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to rotation along an eccentric surface, e.g. arcuate wedging elements
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

The system of blocking of a cylindrical shaft (1) is characterised in that it consists of a multiple self-centring cam (3) which allows the production of an radial blocking force on the cylindrical shaft (1) by a rotary movement of the self-centring cam (3) and the intermediary of cylindrical needles (4).

Description

SYSTEME DE BLOCAGE D'UN AXE CYLINDRIQUE PAR UNE CAME
MULTIPLE AUTOCENTRANTE
La présente invention concerne un principe de blocage d'un axe cylindrique coulissant en vue d'assurer sa position axiale déterminée.SYSTEM FOR LOCKING A CYLINDRICAL AXIS BY A CAME
MULTIPLE AUTOCENTRANTE
The present invention relates to a locking principle of a sliding cylindrical axis to ensure its determined axial position.

Il existe en fait plusieurs systémes de blocage d'un axe afin d'assurer sa position axiale,par exemple le principe tampon tangent" où par l'action sur un vis de serrage on actionne un tampon fileté et par réaction aussi le tampon lisse. L'axe est dans ce cas bloqué par ces deux tampons placés dans un support fixe,par l'effort tangentiel sur l'axe à immobiliser, coulissant dans le maie support fixe.There are in fact several locking systems of an axis to ensure its axial position, for example the tangent buffer principle "where by the action on a clamping screw is actuated a threaded pad and also reaction smooth buffer. The axis is in this case blocked by these two buffers placed in a fixed support, by the tangential force on the axis to be immobilized, sliding in the fixed support maie.

Un autre principe ,hydraulique celui ci,comporte une bague de serrage élastique déformée par la pression hydraulique, où la deforiation de ladite bague permet le blocage de l'axe coulissant.Another principle, hydraulic this one, comprises an elastic clamping ring deformed by the hydraulic pressure, where deforiation of said ring allows the blocking of the sliding axis.

Le but de la présente invention est de proposer un systéme de blocage original, simple et facile d'utilisation, ce qui le différencie des systéles existants. The object of the present invention is to provide an original locking system, simple and easy to use, which differentiates it from existing systems.

Le systéme proposé selon un example de réalisation, sçprésente comme un ensemble indépendant composé de quatre piéces principales, suivant les fig.1 et 2, la douille (2), la came multiple (3), l'axe à bloquer (1), et trois aiguilles cylindriques (4). La piéce principale ou la douille (2) colporte un alésage cylindrique (14) prévue pour guider l'axe (i).Douill- (2) est fendue à une extrémitée en trois parties équidistantes (in).  The system proposed according to an example of embodiment, sçprésente as an independent set composed of four main parts, according to fig.1 and 2, the sleeve (2), the multiple cam (3), the axis to block (1), and three cylindrical needles (4). The main piece or the sleeve (2) colporte a cylindrical bore (14) provided to guide the axis (i) .Douill- (2) is slotted at an extremity in three equidistant parts (in).

Chacune de ces trois parties (10) colporte une empreinte cylindrique (il) paralléle à l'axe de la douille (2).La fonction de cette empreint est d'assurer une position angulaire des aiguilles cylindriques (4).La douille (2) comporte par ailleurs une gorge cylindrique (8) et un guidage exté- rieur (9). Each of these three parts (10) colporte a cylindrical impression (il) parallel to the axis of the sleeve (2) .The function of this fingerprint is to ensure an angular position of the cylindrical needles (4) .The sleeve (2) ) further comprises a cylindrical groove (8) and an outer guide (9).

La deuxiéme piéce de l'ensemble est la came multiple (3), de préference moleté (13) celle ci comporte un vis à téton (7) ayant fonction de butée axiale, une fois en place dans la gorge (8). The second piece of the assembly is the multiple cam (3), preferably knurled (13) that it comprises a pin screw (7) having an axial stop function, once in place in the groove (8).

L'alésage intérieur de la came (3) ,suivant les fig. 2 et 3 comporte trois cames équidistantes (12) où le rayon R1 excentré de "e" est plus grand que le rayon R2 concentrique à l'axe de l'ensemble et 2 2 > tss ("B- diamètre inscrit au sommet des trois R1).Toutefois les rayons R1 et R2 sont tangentiels à trois endroits équidistants
La came (3) ainsi faite permet avec sa rotation dans le sens horaire le serrage de la douille (2) dans sa partie extréme (partie fendue) (10) à travers des trois aiguilles cylindriques (4) et ainsi le serrage de l'axe (1) parce que tA + 2#d > #B. The internal bore of the cam (3), according to FIGS. 2 and 3 comprises three equidistant cams (12) where the eccentric radius R1 of "e" is greater than the radius R2 concentric with the axis of the assembly and 2 2> tss ("B- diameter inscribed at the top of the three R1). However, the radii R1 and R2 are tangential at three equidistant locations
The cam (3) thus made makes it possible, with its rotation in the clockwise direction, to clamp the bushing (2) in its end part (slotted portion) (10) through three cylindrical needles (4) and thus clamping the axis (1) because tA + 2 # d>#B.

A l'envers de ceci, rotation de la came (3) dans le sens anti-hor-ire permet le déblocage de l'ensemble, où +A + 2#d(2R1. In reverse of this, rotation of the cam (3) in the anti-hor-ire direction allows the unblocking of the set, where + A + 2 # d (2R1.

L'axe (1) peut coulisser librement dans la douille (2). Serrage et d-ss-- rrage de l'axe (1) J'effectuent par la rotation de la came multiple (3) dans une plage angulaire de 120 suivant les tollérances de fabrication. The axis (1) can slide freely in the sleeve (2). Axle clamping and unscrewing (1) I perform the rotation of the multiple cam (3) in an angular range of 120 according to manufacturing tariffs.

L'autocentrage de la came multiple (3) résulte du fait que le jeu radial dans le centrage (9) est plus grand que l'ensemble d-s tollérances sur A (diamétre inscrit dans le fond des trois empreints (11) de la douille (2), sur Qd (diamètre de l'aiguille cylindrique (4) ) et sur Ri (rayon de la came (3) ). The self-centering of the multiple cam (3) results from the fact that the radial clearance in the centering (9) is greater than the set of tariffs on A (diameter inscribed in the bottom of the three fingerprints (11) of the sleeve ( 2), on Qd (diameter of the cylindrical needle (4)) and on Ri (radius of the cam (3)).

L'illustration du présent systéme suivant les figures jointes est complétée par la bague (5), la quelle par le moyen des trois vis (6) assure l'impérdabilité des aiguilles cylindriques (4). The illustration of the present system according to the attached figures is completed by the ring (5), which by means of three screws (6) ensures the impermeability cylindrical needles (4).

Le systéme de blocage d'un axe cylindrique (1) est caractérisé en ce qu'il comporte une came multiple autocentrante (3),qui permet la création d'un effort de blocage radial sur l'axe cylindrique (1) à travers un mouvement de rotation de la came multiple autocentrante (3) par l'intérmédiaire des aiguilles cylindriques (4y. Le serrage d'un axe coulissant (1) dans un alésage cylindrique (14) s'effectue avec un jeu radial compris entre
O et 0,3 mm entre l'axe coulissant (1) et son alésage (14). The locking system of a cylindrical axis (1) is characterized in that it comprises a self-centering multiple cam (3), which allows the creation of a radial locking force on the cylindrical axis (1) through a rotational movement of the self-centering multiple cam (3) via the cylindrical needles (4y) The clamping of a sliding shaft (1) in a cylindrical bore (14) is effected with radial clearance between
0 and 0.3 mm between the sliding shaft (1) and its bore (14).

Claims (2)

REVENDICATIONS 1. Systéme de blocage d'un axe cylindrique (i) caractérisé en ce qu'il comporte1. Locking system of a cylindrical axis (i) characterized in that it comprises une came multiple autocentrante (3), qui permet la création d'un effort a self-centering multiple cam (3), which allows the creation of an effort de blocage radial sur l'axe cylindrique (1) à travers un mouvement de ro radial locking on the cylindrical axis (1) through a movement of tation de la came multiple autocentrante (3) par l'intérmédiaire de aig of the self-centering multiple cam (3) via aig uilles cylindriques (4). cylindrical openings (4). 2. Systéme selon la revendication 1. caractérisé en ce que le serrage d'un2. System according to claim 1 characterized in that the tightening of a axe coulissant (1) dans un alésage cylindrique (14) s'effectue avec un jeu sliding shaft (1) in a cylindrical bore (14) is effected with a clearance radial compris entre 0 et 0X3 mi entre l'axe coulissant (1) et son alé radial axis between 0 and 0X3 mi between the sliding axis (1) and its hazard sage (14).  wise (14).
FR9601655A 1996-02-05 1996-02-05 SYSTEM FOR LOCKING A CYLINDRICAL AXIS BY A SELF-CENTERING MULTIPLE BLADE Expired - Fee Related FR2744500B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9601655A FR2744500B1 (en) 1996-02-05 1996-02-05 SYSTEM FOR LOCKING A CYLINDRICAL AXIS BY A SELF-CENTERING MULTIPLE BLADE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9601655A FR2744500B1 (en) 1996-02-05 1996-02-05 SYSTEM FOR LOCKING A CYLINDRICAL AXIS BY A SELF-CENTERING MULTIPLE BLADE

Publications (2)

Publication Number Publication Date
FR2744500A1 true FR2744500A1 (en) 1997-08-08
FR2744500B1 FR2744500B1 (en) 1998-03-06

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ID=9489059

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FR9601655A Expired - Fee Related FR2744500B1 (en) 1996-02-05 1996-02-05 SYSTEM FOR LOCKING A CYLINDRICAL AXIS BY A SELF-CENTERING MULTIPLE BLADE

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0889255A1 (en) * 1997-07-01 1999-01-07 Lubomir Vavro System of blocking a cylindrical shaft by a self-centering multiple cam
WO2008133572A1 (en) * 2007-04-25 2008-11-06 Danaher Motion Stockholm Ab A power assembly, a unit comprising such power assembly and a method of assembling such unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358792A (en) * 2014-10-25 2015-02-18 郭玉 Casing pipe fixing device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1700102A1 (en) * 1967-06-09 1971-05-06 Erich Karges Quick release slip-on screw
EP0015674A1 (en) * 1979-02-20 1980-09-17 Ker-Train Systems Limited Spiral type one-way clutch mechanism and a clutch assembly comprising the mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1700102A1 (en) * 1967-06-09 1971-05-06 Erich Karges Quick release slip-on screw
EP0015674A1 (en) * 1979-02-20 1980-09-17 Ker-Train Systems Limited Spiral type one-way clutch mechanism and a clutch assembly comprising the mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0889255A1 (en) * 1997-07-01 1999-01-07 Lubomir Vavro System of blocking a cylindrical shaft by a self-centering multiple cam
WO2008133572A1 (en) * 2007-04-25 2008-11-06 Danaher Motion Stockholm Ab A power assembly, a unit comprising such power assembly and a method of assembling such unit

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Publication number Publication date
FR2744500B1 (en) 1998-03-06

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