BE544340A - - Google Patents

Info

Publication number
BE544340A
BE544340A BE544340DA BE544340A BE 544340 A BE544340 A BE 544340A BE 544340D A BE544340D A BE 544340DA BE 544340 A BE544340 A BE 544340A
Authority
BE
Belgium
Prior art keywords
flexibility
directions
support
shear
bending
Prior art date
Application number
Other languages
French (fr)
Publication of BE544340A publication Critical patent/BE544340A/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/087Units comprising several springs made of plastics or the like material
    • F16F3/0873Units comprising several springs made of plastics or the like material of the same material or the material not being specified
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00Purpose; Design features
    • F16F2230/0052Physically guiding or influencing
    • F16F2230/007Physically guiding or influencing with, or used as an end stop or buffer; Limiting excessive axial separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2236/00Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/12Mode of stressing of basic spring or damper elements or devices incorporating such elements loaded in combined stresses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Vibration Prevention Devices (AREA)

Description

       

   <Desc/Clms Page number 1> 
 



   Le brevet principal décrit un type de support à action double caractérisé par sa grande flexibilité en direc- tion axiale, à raidissement progressif et tamponnement   final      dans les deux sens ; tandisque la flexibilité est sensiblement   .Mins élevée en direction radiale. 

 <Desc/Clms Page number 2> 

 



   Il convient cependant dans   certaines applications   particulières, d'avoir un support ayant une flexibilité très   élevée   dans deux au lieu des trois   directions     principales    
L'objet de la présente   invention   est un   support     élastique   qui   présente   une   flexibilité     différente   suivant cha- cun des trois axes principaux, savoir :

     flexibilité   élevée avec effet de tamponnement dans les deux sens dans une direc- tion (efforts   correspondants:     cisaillement-flexion     et compression.     flexibilité   élevée dans   une   autre direction perpendiculaire à la première, éventuellement encore avec effet de tamponnement (efforts correspondants :   cisaillement-flexion   ou cisaillement-, flexion et compression); enfin basse flexibilité suivant la direction perpendiculaire aux deux premières.(effort corres- pondant : compression) . 



   L'emploi   caractéristique   d'un support d'un tel type est la suspension de   acteurs   alternatifs à cylindres horizon- taux. 



   Dans ce cas en effet, une   bonne   flexibilité avec raidissement progressif dans les deux sens dans la direction verticale doit être associée avec une flexibilité, si possible encore plus grande suivant la direction parallèle à l'axe des cylindres, de façon que le support soit à même d'absorber les vibrations produites par les explosions, 
Dans la troisième direction, parallèle à   celle'de   la marche du   véhicule,   il est indispensable au contraire d'avoir une raideur telle qu'elle réagisse convenablement aux forces d'inertie qui, lors des freinages et   accélérations soudaines,   tendraient   à   arracher le   acteur.   



   Ce résultat a été obtenu de manière   simple   en 

 <Desc/Clms Page number 3> 

 remplaçant le solide de rotation qui constituait la forme du 
 EMI3.1 
 brevet principal par un prisse'ayant une section trsnavers'alé identique à la surface du susdit solide de rotation'. 



  On obtient aussi que par suite de la <la formation. ;      parallèle à l'axe du prisme,, le caoutchouc   travaille   à cisaillement-flexion. 
 EMI3.2 
 L'invention est illustrée, à titre exenpla-ôif et non limitatif, dans les figures annexées,   dont :   - la figure 1 est une coupe transversale, - la figure 2 est une coupe longitudinale, - la figure 3 une vue en-plan du support dont question, - la figure 4 une vue en plan   d'une   variante par laquelle   on'   obtient dans la direction A - A un raidissement progressif dû à des efforts de compression. 



   Les positions indiquées ont la signification qui suit : 1) représente la bride extérieure pour l'attache du support; 2) la douille   intérieure,*   3)   l'épaisseur   en caoutchouc ; 4)' éven-      fuels   tampons   de butée. 
 EMI3.3 
 



  REVEND 1 0 A T I 0 iu 5: 1) - Support élastique à action double *selo le brevet principal no 510.299 déposé le 29.3.1952, ayait la fqrme, non pas d'un solide de rotation, mais d'un solide, ; ., ;xiN,n.',.rvi.é afin d'obtenir une haute flexibilité dans deux 'dir<:et.r,i' ,ü.' lieu d'une des trois directions principales, le su'oport lrà.^d.ant sa caractéristique de présenter un raidissement progressif1 . dans les deux sens, ce qui justifie sa dénomination de ['#eport à action double". 

 <Desc/Clms Page number 4> 

 



   2) - support suivant la revendication 1 dans lequel est obtenu, un   raidissement     progres@if   dans les deux directions   caractérise   par une plus haute flexibilité par le fait que la surface de contact entre le caoutchouc et le natal ou autres matériaux   anloues   connus, présente la forme de parabloloïdes à courbure simple ou double donnant naissance ainsi à des efforts de compression en plus de ceux de cisaillement et   flexion-  



   <Desc / Clms Page number 1>
 



   The main patent describes a type of double-acting support characterized by its great flexibility in the axial direction, with progressive stiffening and final buffering in both directions; while the flexibility is significantly .Mins high in the radial direction.

 <Desc / Clms Page number 2>

 



   However, in some particular applications it is appropriate to have a support having a very high flexibility in two instead of the three main directions.
The object of the present invention is an elastic support which exhibits a different flexibility according to each of the three main axes, namely:

     high flexibility with buffering effect in both directions in one direction (corresponding forces: shear-bending and compression. high flexibility in another direction perpendicular to the first, possibly still with buffering effect (corresponding forces: shear-bending or shear-, bending and compression); finally low flexibility in the direction perpendicular to the first two (corresponding force: compression).



   The characteristic use of a support of such type is the suspension of reciprocating actors with horizontal cylinders.



   In this case, in fact, good flexibility with progressive stiffening in both directions in the vertical direction must be associated with flexibility, if possible even greater in the direction parallel to the axis of the cylinders, so that the support is at even absorb the vibrations produced by explosions,
In the third direction, parallel to that of the vehicle, it is essential on the contrary to have a stiffness such that it reacts appropriately to the inertia forces which, during braking and sudden acceleration, would tend to tear the actor off. .



   This result was obtained in a simple way by

 <Desc / Clms Page number 3>

 replacing the solid of rotation which constituted the shape of the
 EMI3.1
 main patent by a socket 'having a trsnavers'alé section identical to the surface of the aforesaid solid of rotation'.



  We also obtain that as a result of the <training. ; parallel to the axis of the prism, the rubber works in shear-bending.
 EMI3.2
 The invention is illustrated, by way of example and without limitation, in the appended figures, of which: - Figure 1 is a cross section, - Figure 2 is a longitudinal section, - Figure 3 is a plan view of the support of which question, - Figure 4 a plan view of a variant by which one 'obtains in the direction A - A progressive stiffening due to compressive forces.



   The positions indicated have the following meaning: 1) represents the outer flange for the bracket attachment; 2) inner sleeve, * 3) rubber thickness; 4) 'possible stop buffers.
 EMI3.3
 



  SELLS 1 0 A T I 0 iu 5: 1) - Double action elastic support * according to the main patent no 510,299 filed on March 29, 1952, had the fqrme, not of a solid of rotation, but of a solid; .,; xiN, n. ',. rvi.é in order to obtain a high flexibility in two' dir <: et.r, i ', ü.' instead of one of the three main directions, the su'oport lrà. ^ d.ant its characteristic of presenting a progressive stiffening1. in both directions, which justifies its name of ['#eport with double action ”.

 <Desc / Clms Page number 4>

 



   2) - support according to claim 1 wherein is obtained, a progressive stiffening in both directions characterized by a higher flexibility in that the contact surface between the rubber and the natal or other known anloues materials, has the form of parabloloids with single or double curvature thus giving rise to compressive forces in addition to those of shear and bending-


    
BE544340D BE544340A (en)

Publications (1)

Publication Number Publication Date
BE544340A true BE544340A (en)

Family

ID=172341

Family Applications (1)

Application Number Title Priority Date Filing Date
BE544340D BE544340A (en)

Country Status (1)

Country Link
BE (1) BE544340A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4040426A1 (en) * 1990-12-18 1992-06-25 Daimler Benz Ag SUPPORT BEARING

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4040426A1 (en) * 1990-12-18 1992-06-25 Daimler Benz Ag SUPPORT BEARING

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