BE509652A - - Google Patents

Info

Publication number
BE509652A
BE509652A BE509652DA BE509652A BE 509652 A BE509652 A BE 509652A BE 509652D A BE509652D A BE 509652DA BE 509652 A BE509652 A BE 509652A
Authority
BE
Belgium
Prior art keywords
rotor
flanges
coupling members
coupling
springs
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE509652A publication Critical patent/BE509652A/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/06Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00Rotary-piston machines or engines
    • F01C1/30Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/40Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member
    • F01C1/44Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member with vanes hinged to the inner member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

       

  ORGANE DE COUPLAGE ENTRE' FLASQUES ET ROTOR DE SOUFFLERIES: ROTATIVES .

  
Les flasques de souffleries rotatives ou de compresseurs tournent synchroniquement avec le rotor, non pas autour de l'axe de ce dernier, mais bien autour de celui du carter. La transmission du mouvement du rotor au flasque s'effectue à l'aide d'organes de couplage, avantageusement au nombre de trois. Le montage de plusieurs organes de couplage nécessite une précision extraordinaire du traçage et de l'ajustage. Les imperfections d'usinage, inévitables, ou les variations de température pendant le fonctionnement, peuvent provoquer des sollicitations si fortes sur les organes de couplage, qu'il en résulte des'détériorations de ces organes et des éléments qui y sont reliés.

  
Suivant la présente invention, .on supprime ces inconvénients, en rendant élastique une des articulations de l'organe de couplage. Une forme d'exécution avantageuse consiste en ce qu'un coussinet d'articulation de l'organe de couplage est maintenu dans sa position médiane, par des ressorts précontraints. Les éléments élastiques d'une des articulations peuvent absorber de légères différences des centres des tourillons, de façon à pouvoir compenser les imprécisions d'usinage, inévitables, ou les variations de dimensions pendant le fonctionnement. On obtient encore les avantages d'un démarrage sans à-coups et d'un amortissement de toutes les vibrations pouvant se produire. 

  
Les dessins annexés représentent un exemple d'exécution de la présente invention.

  
 <EMI ID=1.1> 

  
comportant les organes de couplage entre rotor et flasques.

  
 <EMI ID=2.1> 

  
La Fig. 3 représente schématiquement le mouvement de l'organe de couplage. 

  
La soufflerie rotative suivant la Fig. 1 comporte de manière connue l'arbre de commande 1, le rotor 2 avec ses éléments latéraux 3, et le carter 4 avec ses couvercles 5. Entre le pourtour du rotor et la.partie cylindrique du carter 6, se trouve l'espace de compression 7 ayant en coupe transversale la forme d'un croissant, cet espace 7 étant divisé en plusieurs chambres par des palettes, non représentées. Ces chambres sont fermées axialement par les flasques 10, qui tournent autour de l'axe 9 du carter et non autour de l'axe 8 du rotor. Des organes de couplage 11 dont au moins trois sont prévus de chaque côté, servent à transmettre le mouvement du rotor aux flasques. Ils sont à cet effet reliés, de façon articulée, en 12 au rotor, ou à ses parties latérales, et en 13 aux flasques 10.

  
Lorsque la distance des articulations 12 et 13 est invariable, il se peut que par suite des inexactitudes d'usinage inévitables, les organes de couplage soient soumis en fonctionnement à des sollicitations trop fortes,

  
 <EMI ID=3.1> 

  
mations inadmissibles. Suivant la présente invention, comme le montre la Fig. 2, une des deux articulations, par exemple l'articulation 13, est exécutée de façon élastique. Ceci peut être réalisé de différentes manières. Il est avantageux que le coussinet d'articulation 13 soit maintenu dans sa position médiane par deux ressorts 16 précontraints, dont l'un est monté devant, et l'autre derrière lui. La tension de ces ressorts peut être réglée à l'aide des tendeurs vissés 18 pourvus des trous latéraux 17, et peut être adaptée aux différentes conditions de travail. Les ressorts et les tendeurs permettent à l'organe de couplage un déplacement longitudinal limité, pendant le fonctionnement. Les mouvements des organes de couplage pendant le fonctionnement de la soufflerie rotative, représentés schématiquement à la Fig. 3, peuvent ainsi s'effectuer librement.

   On peut également utiliser au lieu de ressorts, d'autres éléments élastiques, par exemple des amortisseurs en:.caoutchouc résistant à l'huile.

REVENDICATIONS.

  
1 - Organe de couplage entre le flasque et le rotor de souffleries rotatives, caractérisé en ce qu'une de ses deux articulations est exécutée de façon à être élastique dans le sens longitudinal de cet organe.



  COUPLING BETWEEN 'FLANGES AND BLOWER ROTOR: ROTARY.

  
The flanges of rotary blowers or compressors rotate synchronously with the rotor, not around the axis of the latter, but well around that of the casing. The movement of the rotor to the flange is transmitted using coupling members, preferably three in number. The assembly of several coupling members requires an extraordinary precision of the layout and the adjustment. The inevitable machining imperfections or the temperature variations during operation can cause such strong stresses on the coupling members that the result is deterioration of these members and of the elements connected to them.

  
According to the present invention, these drawbacks are eliminated by making one of the joints of the coupling member elastic. An advantageous embodiment consists in that an articulation bearing of the coupling member is maintained in its median position, by prestressed springs. The elastic elements of one of the articulations can absorb slight differences in the centers of the journals, so as to be able to compensate for the unavoidable machining inaccuracies or the variations in dimensions during operation. The advantages of smooth starting and damping of any vibrations that may occur are also obtained.

  
The accompanying drawings show an exemplary embodiment of the present invention.

  
 <EMI ID = 1.1>

  
comprising the coupling members between rotor and flanges.

  
 <EMI ID = 2.1>

  
Fig. 3 schematically represents the movement of the coupling member.

  
The rotary blower according to FIG. 1 comprises in a known manner the control shaft 1, the rotor 2 with its lateral elements 3, and the casing 4 with its covers 5. Between the periphery of the rotor and the cylindrical part of the casing 6, there is the space of compression 7 having in cross section the shape of a crescent, this space 7 being divided into several chambers by pallets, not shown. These chambers are closed axially by the flanges 10, which rotate around the axis 9 of the housing and not around the axis 8 of the rotor. Coupling members 11, at least three of which are provided on each side, serve to transmit the movement of the rotor to the flanges. For this purpose, they are connected, in an articulated manner, at 12 to the rotor, or to its lateral parts, and at 13 to the flanges 10.

  
When the distance of the joints 12 and 13 is invariable, it is possible that, as a result of inevitable machining inaccuracies, the coupling members are subjected in operation to excessive stresses,

  
 <EMI ID = 3.1>

  
inadmissible mations. According to the present invention, as shown in FIG. 2, one of the two joints, for example joint 13, is executed in an elastic manner. This can be done in different ways. It is advantageous for the articulation pad 13 to be held in its middle position by two prestressed springs 16, one of which is mounted in front and the other behind it. The tension of these springs can be adjusted using screwed tensioners 18 provided with lateral holes 17, and can be adapted to different working conditions. The springs and tensioners allow the coupling member a limited longitudinal displacement, during operation. The movements of the coupling members during the operation of the rotary blower, shown schematically in FIG. 3, can thus be carried out freely.

   It is also possible to use instead of springs other elastic elements, for example shock absorbers made of:. Oil resistant rubber.

CLAIMS.

  
1 - Coupling member between the flange and the rotor of rotary blowers, characterized in that one of its two joints is executed so as to be elastic in the longitudinal direction of this member.


    

Claims (1)

2 - Organe de couplage suivant la revendication 1, caractérisé en ce qu'un de ses deux coussinets d'articulation est maintenu dans sa position médiane par des ressorts précontraints. 2 - Coupling member according to claim 1, characterized in that one of its two articulation bearings is held in its median position by prestressed springs.
BE509652D 1951-03-02 BE509652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1051862X 1951-03-02

Publications (1)

Publication Number Publication Date
BE509652A true BE509652A (en)

Family

ID=7717552

Family Applications (1)

Application Number Title Priority Date Filing Date
BE509652D BE509652A (en) 1951-03-02

Country Status (2)

Country Link
BE (1) BE509652A (en)
FR (1) FR1051862A (en)

Also Published As

Publication number Publication date
FR1051862A (en) 1954-01-19

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