DK158779B

DK158779B - SUSPENSION FOR SUSPENSION OF A LARGE CONSTRUCTION PART IN A CARRIER

Info

Publication number: DK158779B
Application number: DK528685A
Authority: DK
Inventors: Claus-Georg Schoof; Rolf Schraut
Original assignee: Duewag Ag
Priority date: 1984-11-17
Filing date: 1985-11-15
Publication date: 1990-07-16
Also published as: DK528685D0; EP0182191A2; DE3442157A1; NO167558B; NO854571L; ATE51819T1; DK528685A; DK158779C; EP0182191A3; EP0182191B1; NO167558C; DE3577071D1

Abstract

1. Suspension of a heavy structural part (2) on a support (1) more particularly of a railway vehicle, which support comprises a wedge-shaped seating (1a) which is open towards the bottom and has two limbs (1b) connected to the support (1), the structural part (2) being frictionally and positively locked with the seating (1a) via a wedge-shaped connection part (2a) corresponding in shape to the seating (1a) on the support, characterised in that the wedge-shaped seating (1a) is non-deformable as a result of the rigid design and rigid connection of the two limbs (1b) on the support (1), the positive-locking engagement of the connection part (2a) in the seating (1a) being obtained by vertical relative movement of the connection part (2a), and the prestressing force acting downwards upon the connection part (2) in a vertical direction.

Description

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Opfindelsen angår et ophæng af den i krav 1' s indledning angivne art.The invention relates to a suspension of the kind specified in the preamble of claim 1.

Opfindelsen er baseret på opgaven at ophænge en tung kon-5 struktionsdel på en sådan måde, at alle vægt- og accelerationskræfter med høj sikkerhed optages af drageren. Herved er det nødvendigt at gå ud fra, at kræfterne ikke alene virker i lodret retning, men også i længde- og tværretningerne; desuden skal der tages særligt hensyn til de 10 under et skinnekøretøjs kørsel forekommende rystelser, som både kan skyldes køretøjets eget maskineri og ujævnheder på skinnerne.The invention is based on the task of suspending a heavy structural member in such a way that all high weight and acceleration forces are absorbed by the carrier. In this way, it is necessary to assume that the forces act not only in the vertical direction, but also in the longitudinal and transverse directions; In addition, special attention must be paid to the 10 vibrations that occur during the operation of a rail vehicle, which may be due to the vehicle's own machinery and unevenness on the rails.

Fra side 542, billede B, i "Handbook of Fastening and Joining of Metal Parts" af Vallory H. Laughner og Augustus 15 D. Hargan, 1. udgave, McGraw-Hill, 1956, jf. vedlagte kopi, kendes et ophæng, hvori der i en nedadtil åben svalehalenot i en drager indgriber et modsvarende kileformet tilslutningsstykke på en konstruktionsdel. I drageren er der udformet en slids, der udmunder i noten 20 vinkelret på dennes bund, og hvormed notens bredde kan ændres ved at udnytte fjedringen af de ben, der begrænser noten. Denne udformning gør det for det første muligt at indføre tilslutningsstykket i noten, og for det andet at fastklemme tilslutningsstykket i noten ved hjælp af en på 25 tværs af slidsen forløbende bolteforbindelse. Den formindskelse af slidsens bredde, der er nødvendig til fastklemning af tilslutningsstykket, medfører en uhensigtsmæssig linieberøring mellem de kileformede flader i noten og på tilslutningsstykket. En yderligere ulempe består i, at 30 konstruktionsdelens vægt virker modsat bolteforbindelsens spændekraft; der kræves således en kraftig forspænding i bolteforbindelsen og/eller et stort antal bolte for at forhindre en kritisk udvidelse af noten. Dette betyder også, at dersom bolteforbindelsen skulle løsne, kan kon-35 struktionsdelen ikke længere fastholdes sikkert, og denFrom page 542, image B, in "Handbook of Fastening and Joining of Metal Parts" by Vallory H. Laughner and Augustus 15 D. Hargan, 1st Edition, McGraw-Hill, 1956, cf. attached copy, a hanging is known in which which in a downwardly open swallowtail note engages a corresponding wedge-shaped connection piece on a structural member. In the carrier, a slot is formed which opens into the groove 20 perpendicular to the bottom of the groove, and by which the width of the groove can be changed by utilizing the suspension of the legs limiting the groove. This configuration makes it possible, firstly, to insert the connection piece into the groove, and secondly to clamp the connection piece into the groove by means of a bolt connection extending across the slot. The reduction in the width of the slot required for clamping of the connecting piece results in an inappropriate line contact between the wedge-shaped surfaces of the groove and on the connection piece. A further disadvantage is that the weight of the structural member acts opposite to the clamping force of the bolted joint; thus, a strong bias in the bolt connection and / or a large number of bolts is required to prevent a critical extension of the groove. This also means that, should the bolted joint loosen, the structural member can no longer be securely retained, and the

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2 kan endda falde ned, dersom bolten eller boltene skulle gå tabt.2 may even fall down if the bolt or bolts were to be lost.

Det er på denne baggrund opfindelsens formål at anvise 5 udformningen af et ophæng af den indledningsvis nævnte art, hvormed den ovenfor omtalte opgave kan løses på enkelst mulig måde og uden de ovenfor omtalte ulemper, og dette formål opnås ved et ophæng, som tillige udviser de i krav l's kendetegnende del angivne træk.Accordingly, it is the object of the invention to provide the design of a suspension of the kind mentioned above, with which the above-mentioned task can be solved in the simplest possible way and without the disadvantages mentioned above, and this object is achieved by a suspension which also exhibits the features of the characterizing part of claim 1.

10 Herved opnås navnlig følgende fordele: a) Den tunge konstruktionsdels vægt frembringer en betydelig andel af anlægskraften mellem de kileformede overflader i den formstabile not og på tilslutningsstykket. Derved kan boltenes forspændingskraft 15 være mindre, og der kan derved også anvendes færre og/eller tyndere bolte.10 In particular, the following advantages are obtained: a) The weight of the heavy structural part produces a considerable proportion of the compressive force between the wedge-shaped surfaces of the mold-stable groove and on the connection piece. Thereby, the biasing force 15 of the bolts may be less, and thus fewer and / or thinner bolts can also be used.

b) På grund af den formbetingede fastgørelse og den nævnte, vægt-betingede anlægskraft er det fuldstændigt udelukket, at konstruktionsdelen kan falde ned, selv 20 når boltene helt mangler.b) Due to the molded fastening and said weight-dependent abutment force, it is completely excluded that the structural part can fall down, even when the bolts are completely missing.

c) Ophænget udviser en iboende vibrationssikkerhed, der opnås uden yderligere foranstaltninger.(c) The suspension exhibits an inherent vibration safety that is achieved without further action.

d) Belastningskraften optages af drageren på et sted, hvor der ikke findes boringer for fastgørelsesskruer 25 eller svejsesteder, dvs. steder, hvor drageren ikke er svækket.d) The load force is absorbed by the carrier in a location where no bores are provided for fastening screws 25 or welding locations, ie. places where the carrier is not weakened.

e) Den formstabile not kan frembringes på enkel måde og uden ekstraomkostninger, dersom drageren svarende til den moderne opbygning af skinnekøretøjer fremstilles 30 som strengpresset letmetalprofildrager.e) The mold-stable groove can be produced in a simple manner and at no additional cost if the carrier corresponding to the modern construction of rail vehicles is manufactured as a extruded light metal profile carrier.

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Ved den i krav 2 angivne udførelsesform opnås, at man står frit med hensyn til den konstruktive anordning af et maskinaggregat, der f.eks. skal ophænges i de to ydre 5 længdedragere i et skinnekøretøjs understel.In the embodiment according to claim 2, it is achieved that one stands freely with regard to the constructive arrangement of a machine assembly which e.g. must be suspended in the two outer 5 longitudinal supports of a rail vehicle's undercarriage.

Ved den i krav 3 angivne udførelsesform opnås, at eventuelle faremomenter for mennesker og materiel, som ved en uagtsomhed f.eks. under montagen kunne opstå på grund af svækkelse af drageren, undgås.In the embodiment set out in claim 3, it is achieved that any danger of human and material hazards, such as by negligence e.g. during assembly could occur due to weakening of the carrier, avoided.

10 Ved den i krav 4 angivne udførelsesform opnås, at den tunge konstruktionsdels tilslutningsstykker kan anbringes nøjagtigt på de ønskede steder.In the embodiment according to claim 4, it is achieved that the heavy-duty construction part's connecting pieces can be placed exactly at the desired places.

Ved den i krav 5 angivne udførelsesform undgås en utilladelig spredning af notens to ben, f.eks. på grund af en 15 unødvendigt høj forspændingskraft.In the embodiment of claim 5, an unauthorized spreading of the two legs of the groove, e.g. due to a 15 unnecessarily high biasing force.

Opfindelsen skal i det følgende forklares nærmere under henvisning til tegningen, på hvilken fig. 1 viser en drager 1 i snit, fig. 2 viser et sidebillede af figur 1 i formindsket måle-20 stok, fig. 3 viser et snit i figur 2 efter linien III-III i samme målestok som fig. 1, fig. 4 viser del Z i fig. 2 snittet på tværs af drager 1 i målestok som figur 1, og 25 fig. 5 viser et snit langs linien V-V i fig. 4 i samme målestok som fig. 4.The invention will now be explained in more detail with reference to the drawing, in which: 1 is a sectional view of a carrier 1; FIG. Figure 2 is a side view of Figure 1 in a diminished scale; 3 shows a section in figure 2 along line III-III on the same scale as fig. 1, FIG. 4 shows part Z of FIG. Figure 2 is a cross-sectional view of kites 1 in scale as Figure 1; 5 shows a section along the line V-V in FIG. 4 on the same scale as FIG. 4th

Den i fig. 1-5 viste som letmetalstrengpresseprofil fremstillede drager 1, der sammen med en ikke vist drager af 4The FIG. 1-5 shown as light metal string press profile manufactured kites 1 which together with a carrier not shown 4

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tilsvarende udførelse danner et dragerpar til optagelse af en rammedel 2, har i sit nederste længdeplan en nedad-vendende, åben not la, hvilken not la er kileformet og 5 begrænses af to ben lb. Ifølge fig. 2 strækker noten la sig over hele længden af den kun delvis tegnede drager 1.corresponding embodiment forms a support pair for receiving a frame portion 2, has in its lower longitudinal plane a downwardly open, open groove 1a, which groove 1a is wedge-shaped and 5 is restricted by two legs 1b. According to FIG. 2, the note extends over the entire length of the only partially drawn kite 1.

I et svagt belastet sted af drageren 1 er der som vist på fig. 2 og 3 ved udeladelse af et af de to ben lb dannet en udsparing lc. Denne udsparing lc tjener til indsætning af 10 et tilslutningsstykke 2a på rammedelen 2 i noten la, og er antydet i fig. 2 og vist mere nøjagtigt i fig. 4 og 5.As shown in FIG. 2 and 3 by omitting one of the two legs 1b, a recess 1c is formed. This recess 1c serves to insert a connector 2a on the frame portion 2 of the groove 1a, and is indicated in FIG. 2 and more precisely in FIG. 4 and 5.

Ifølge fig. 4 og 5 er det i noten la i drageren 1 indgribende afsnit af tilslutningsstykket 2a ligeledes kileformet, således at der mellem noten la og tilslutnings-15 stykket 2a dannes en formfast forbindelse. I dette kileformede afsnit af tilslutningsstykket 2a er ifølge fig. 4 og 5 en firkantet arm, der strækker sig gennem den åbne ende af sporet la og ved svejsninger fastgjort til rammedelen 2, således udformet, som fig. 4 viser, at længde-20 tværsnittet af tilslutningsstykket 2a er T-formet. På begge sider af den nævnte arm er der imod den åbne ende af not la anbragt spændeplader 4, hvis hager 4a griber omkring yderfladerne på begge ben lb af noten la. Gennem spændepladerne 4 strækker der sig skruer 3, der griber ind 25 i det ovenfor omtalte kileformede afsnit af tilslutningsstykket 2a, hvorved dette og dermed rammedelen 2 er fastspændt .According to FIG. 4 and 5, the portion of the connection piece 2a engaging in the groove 1a is also wedge-shaped, so that a mold-resistant connection is formed between the groove 1a and the connection piece 2a. In this wedge-shaped section of the connecting piece 2a, according to FIG. 4 and 5 are a square arm extending through the open end of the groove 1a and by welds attached to the frame portion 2, thus formed as FIG. 4 shows that the longitudinal cross-section of the connecting piece 2a is T-shaped. On both sides of said arm, clamping plates 4 are provided against the open end of groove 1a, whose hooks 4a grip around the outer surfaces of both legs 1b of groove 1a. Screws 3 extend through the clamping plates 4 which engage 25 in the above-mentioned wedge-shaped section of the connection piece 2a, whereby this and thus the frame part 2 is clamped.

Claims

A suspension for mounting a heavy structural part (2) in a carrier (1), in particular of a rail vehicle, the suspension of which comprises (a) a downwardly open, wedge-shaped groove (1a) with two legs (lb) connected to the carrier (1), and b) a wedge-shaped connecting piece (2a), the shape of which corresponds to the shape of the groove (1a), and to which the structural part (2) is related to the force and shape condition of the carrier ( 1), characterized in that: 1. the groove (1a) as a whole is shape stable, obtained by the two legs (1b) being rigid and rigidly connected to the carrier (1); II. that the shape-dependent engagement of the connection piece (2a) with the groove (1a) is obtained by vertical relative movement of the connection piece (2a), and III. the biasing force of the connection piece 20 (2a) acts vertically downward.

Suspension according to claim 1, characterized in that the groove (1a) extends along the carrier (1), at least one of the two legs (1b) of the groove (1b) being provided with insertions (1c) serving for insertion. of the connector (2a) of the structural member (2).

Suspension according to claim 2, characterized in that the recess (1c) in the groove (1a) of the carrier (1) is arranged in its weakly loaded places and at a safe distance from the attachment point (2a) which remains in place.

Suspension according to one or more of claims 1-3, characterized in that the connection piece (2a) in its section located in the groove (1a) is clamped by a screw (3) which engages in this section (3) which passes through a clamp. plate (4) lying over the open side of the groove (1a).

Suspension according to claim 4, characterized in that the clamping plate (4) is provided with beads (4a) which grip the outer surfaces of the two legs (1b) of the groove (1a).