BE445195A - - Google Patents

Info

Publication number
BE445195A
BE445195A BE445195DA BE445195A BE 445195 A BE445195 A BE 445195A BE 445195D A BE445195D A BE 445195DA BE 445195 A BE445195 A BE 445195A
Authority
BE
Belgium
Prior art keywords
emi
bogie
forces
longitudinal
bending
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 BE445195A publication Critical patent/BE445195A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/50Other details
    • B61F5/52Bogie frames

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Description

       

   <EMI ID=1.1> 

  
 <EMI ID=2.1> 

  
les moments de flexion et de torsion,et pour les absorber des corps de section transversale la plus réduite pour un moment de résistance donné. Aussi bien dans la construction des.bogies est-on souvent passé de la transmission de la charge par le pivot de bogie à l'appui latéral de la caisse du véhicule sur des ressorts longitudinaux, et l'on a ainsi diminué dans les longe-

  
 <EMI ID=3.1> 

  
duisent par exemple lors du freinage,les derniers proviennent du mouvement de lacet et lors du passage dans des. courbes de la voie. Ces efforts exigent des pièces de construction lour- 

  
 <EMI ID=4.1>  ils peuvent être ab sorbé s.

  
Dans les anciens châssis à bogie on a prévu pour absor&#65533; ber les efforts longitudinaux et transversaux des pièces de

  
 <EMI ID=5.1> 

  
lui d'une pièce unique convenablement profilée pour absorber toutes les forces.La multiplicité des pièces de construction n'entraînait pas seulement un poids élevé, mais compliquait aussi la fabrication,parce quu'elles se nuiraient mutuellement.

  
Il est également connu de prévoir, dans le cas de bogies à trois essieux, un châssis rectangulaire recevant la charge du pivot en direction verticale et relié aux joues latérales du châssis à bogie au moyen de quatre bras partant de 'ses

  
 <EMI ID=6.1> 

  
ter les chocs verticaux et les efforts de torsion. La forme extérieure de ce corps de châssis est déterminée par la présence du train de roues médian et par la charge verticale du pivot de bogie; elle ne ressort pas de la décision de diminuer

  
le moment de flexion agissant en direction longitudinale et par suite de diminuer sensiblement le poids des pièces chargées,car les efforts horizontaux ne sont pas ainsi dirigés vers le pivot de bogie par le chemin le plus court possible,  mais- suivant une trajectoire plusieurs fois brisée.

  
 <EMI ID=7.1> 

  
les sur rails comportant une caisse s'appuyait au bogie

  
sur des ressorts longitudinaux, le quel châssis est caractérisé par un entretoisement diagonal,dont les extrémités sont reliées aux points de suspension des ressorts longitudinaux ou leur proximité, ainsi qu'aux longerons du châssis le plus près possible des boites à graisse, de telle sorte que toutes les forces horizontales naissant dans le châssis sont dirigées? par le plus court chemin possible, au pivot de bogie

  
 <EMI ID=8.1> 

  
position, les moments de flexion et de torsion résultant  des forces horizontales, peuvent être aussi maintenus aussi petits que possible et en certaines circonstances, ils peuvent être complètement évités.

  
 <EMI ID=9.1> 

  
invention, la vue en plan d'un chassis à bogie ,dont les boites à graisse A sont disposées extérieurement aux roues et dont la caisse du véhicule s'appuie en 2 sur des ressorts longitudinaux I. Les forces longitudinales,par exemple les forces de freina-

  
 <EMI ID=10.1> 

  
versales agissent par flexion avec un bras de levier c sur les longerons 4 du bogie , c'est pourquoi l'entretoisement- diagonal

  
 <EMI ID=11.1> 

  
point a, l'entretoisement diagonal subit encore le moment de flexion provenant de l'attache latérale a-b des ressorts de suspension I. Les divers éléments de l'entretoisement diagonal

  
 <EMI ID=12.1> 

  
cette lisaison se raccordent encore au centre du bogie les entretoises longitudinales 6, qui servent,tout comme les traverses de tête 7 à recevoir les organes de frein et analogues,

  
 <EMI ID=13.1> 

  
du bogie;leur disposition est avant tout essentiellement constituée de façon que les forces horizontales sont dirigées par le plus court chemin possible vers le pivot de bogie et que les moments de flexion résultant de ces forces restent les  plus petits possible ou sont complètement supprimés. 

  
L'emploi conforme à l'invention d'un entretoisement dia-

  
 <EMI ID=14.1> 

  
le plus réduit tout en présentant une résistance élevée. Cet entretoisement est spécialement approprié à l'emploi d'éléments 

  
 <EMI ID=15.1> 

  
sulte de moyens simple s.



   <EMI ID = 1.1>

  
 <EMI ID = 2.1>

  
bending and torsional moments, and to absorb them bodies of the smallest cross-section for a given moment of resistance. In the construction of bogies, too, we have often gone from the transmission of the load by the bogie pivot to the lateral support of the vehicle body on longitudinal springs, and we have thus decreased in the lanyards.

  
 <EMI ID = 3.1>

  
For example, when braking, the latter come from the yaw movement and when passing through. curves of the track. These efforts require heavy construction parts.

  
 <EMI ID = 4.1> they can be absorbed.

  
In the old bogie frames it was planned to absorb &#65533; ber the longitudinal and transverse forces of the

  
 <EMI ID = 5.1>

  
it of a single piece suitably profiled to absorb all the forces. The multiplicity of the construction parts not only resulted in a high weight, but also complicated the manufacture, because they would harm each other.

  
It is also known to provide, in the case of bogies with three axles, a rectangular frame receiving the load from the pivot in the vertical direction and connected to the side flanges of the bogie frame by means of four arms extending from its sides.

  
 <EMI ID = 6.1>

  
ter vertical shocks and torsional forces. The external shape of this chassis body is determined by the presence of the median wheel set and by the vertical load of the bogie pivot; it does not follow from the decision to decrease

  
the bending moment acting in the longitudinal direction and therefore significantly reducing the weight of the loaded parts, because the horizontal forces are not thus directed towards the bogie pivot by the shortest possible path, but following a path several times broken .

  
 <EMI ID = 7.1>

  
the on rails comprising a box rested on the bogie

  
on longitudinal springs, which chassis is characterized by a diagonal bracing, the ends of which are connected to the suspension points of the longitudinal springs or their proximity, as well as to the chassis side members as close as possible to the grease boxes, in such a way that all the horizontal forces arising in the frame are directed? by the shortest possible route, at the bogie pivot

  
 <EMI ID = 8.1>

  
position, the bending and torsional moments resulting from the horizontal forces, can be kept as small as possible as much as possible and in certain circumstances can be completely avoided.

  
 <EMI ID = 9.1>

  
invention, the plan view of a bogie frame, of which the grease boxes A are arranged outside the wheels and of which the vehicle body is supported in 2 on longitudinal springs I. The longitudinal forces, for example the forces of braked

  
 <EMI ID = 10.1>

  
versales act by bending with a lever arm c on the side members 4 of the bogie, which is why the diagonal bracing

  
 <EMI ID = 11.1>

  
point a, the diagonal bracing still undergoes the bending moment coming from the lateral attachment a-b of the suspension springs I. The various elements of the diagonal bracing

  
 <EMI ID = 12.1>

  
this line is still connected to the center of the bogie the longitudinal spacers 6, which serve, like the head cross members 7 to receive the brake members and the like,

  
 <EMI ID = 13.1>

  
of the bogie; their arrangement is primarily constituted in such a way that the horizontal forces are directed by the shortest possible path towards the bogie pivot and that the bending moments resulting from these forces remain as small as possible or are completely eliminated.

  
The use according to the invention of a diagonal bracing

  
 <EMI ID = 14.1>

  
the smallest while having a high resistance. This bracing is especially suitable for the use of elements

  
 <EMI ID = 15.1>

  
sult of simple means s.


    

Claims (1)

REVENDICATION. <EMI ID=16.1> CLAIM. <EMI ID = 16.1> toutes les forces horizontales se produisant dans le châssis sont dirigées vers le pivot de bogie par le chemin le plus all horizontal forces occurring in the frame are directed towards the bogie pivot by the most <EMI ID=17.1> <EMI ID = 17.1> forces verticales. vertical forces.
BE445195D 1939-08-30 BE445195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE881154X 1939-08-30

Publications (1)

Publication Number Publication Date
BE445195A true BE445195A (en)

Family

ID=6827846

Family Applications (1)

Application Number Title Priority Date Filing Date
BE445195D BE445195A (en) 1939-08-30

Country Status (2)

Country Link
BE (1) BE445195A (en)
FR (1) FR881154A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE938069C (en) * 1953-05-07 1956-01-19 Talbot Waggonfab Bogie for rail vehicles
DE1063630B (en) * 1955-10-18 1959-08-20 Raoul Joern Dipl Ing Two-axle bogie, especially for rail vehicles
US2908230A (en) * 1956-01-30 1959-10-13 Budd Co Railway car truck

Also Published As

Publication number Publication date
FR881154A (en) 1943-04-16

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