SE123802C1 - - Google Patents

Description

Uppfinnare: L Werz. Inventor: L Werz.

Prioritet begdrd fTdn den 17 april 194C (Schweiz). Priority requested fTdn 17 April 194C (Switzerland).

Den sedan artionden tillbaka kanda tramupphangda motorn, sons it ena sidan -vilar pa drivhjulsaxeln och it andra sidan i vagnsunderredet, har fatt utomordentligt stor utbredning pa grund av sin enkelhet och den latthet, varmed den kan inmonteras och uttagas. Emellertid har det befunnits nodvandigt att skilj a motorn och kuggvaxeln at och att stelt forbinda motorn med underredet, som i sin tur vilar pit fjadrar (fast motor), vilket nodvandiggor anvandandet av en bojlig f Orbindelse mellan motoraxeln och kuggvaxeln. Kugghjulskapan dr for detta andamal anbragt ph drivaxcln och fasthalles av ett vridmomentstod. Det ar kant (jfr exempelvis schweiziska patentet nr 234 281), att pa grund av det till f8rfogande staende ringa utrynnnet anvandandet av glidlager icke kommer i betraktande for uppbaring av kugghjulskapan, utan att harfor endast rullager aro anvandbara. Svarigheten att komma itt dessa lager innebar emellertid en allvarlig naekdel, i det att man for inspektion och uttagning av lagren maste helt avlagsna drivaxeln med hjulen fran fordonet samt aven avtaga ett av hjulen frail drivaxeln. Dessa olagenheter ha hittills tolererats. The tram-suspended engine, known for decades, rests on one side of the drive wheel axle and on the other side of the carriage chassis, has become extremely widespread due to its simplicity and the ease with which it can be mounted and removed. However, it has been found necessary to separate the motor and the gear shaft and to rigidly connect the motor to the chassis, which in turn rests pit springs (fixed motor), which necessitates the use of a flexible connection between the motor shaft and the gear shaft. For this purpose, the gearbox housing is mounted on the drive shaft and is held in place by a torque column. It is an advantage (cf., for example, Swiss Patent No. 234,281) that, due to the poor condition provided, the use of plain bearings is not considered for supporting the gearbox, but only roller bearings are usable. The difficulty of getting into these bearings, however, was a serious disadvantage, in that for inspection and removal of the bearings one had to completely remove the drive shaft with the wheels from the vehicle and also remove one of the wheels from the drive shaft. These irregularities have so far been tolerated.

Uppfinningen avser en uppbaringsanordning for kugghjulskapan vid elektriskt drivna ralsfordon. Den liar till andamal att undanrOja ovannamnda nackdelar och att vid den med underredet fast forbundna motorn uppna samma f8rdelar som vid den tramupphangda motorn, d. v, s. latt atkomlighet hos drivaxeln och lagren, och speciellt latt utbyte av lagren utan att man behover taga av ett av hjulen fran drivaxeln. For detta andamal sit-bytes det stora kugghjulet (som vid hittills kanda anordningar med silt nay ar fast pa drivhjulsaxeln) mot en kuggkrans, som ar forbunden med drivhjulets sida pit sadant sat, att det av denna kuggkrans omslutna rummet är delvis fritt och kan anvandas for att direkt pa drivaxeln montera det kugghjulskapan uppbarande lagret. Denna anordning medgiver sasom latt inses, att lagret blir alkomligt, varjamte man, om sit onskas, kan begagna sig av ett glidlager. The invention relates to a support device for the gearbox in electrically driven rally vehicles. It tends to obviate the above-mentioned disadvantages and to achieve with the chassis fixedly connected to the chassis the same advantages as with the tram-suspended engine, i.e. easy access to the drive shaft and bearings, and especially easy replacement of the bearings without having to take of one of the wheels from the drive shaft. For this purpose, the large gear (which in hitherto known devices with silt is fixed to the drive shaft) is replaced by a gear ring, which is connected to the side of the drive wheel in such a way that the space enclosed by this gear ring is partially free and can be used. to mount the gear bearing bearing directly on the drive shaft. This device allows, as can be readily understood, that the bearing becomes universal, and that, if desired, one can use a sliding bearing.

Anordningen enligt uppfinningen kannetecknas alltsa i huvudsak darav, att den omedelbart invid drivhjulet anbragta kugghjulskapan uppbares av ett lager, som itr monterat direkt pa hjulaxeln i det rum, som utat begransas av en med ett kuggdrev i ingrepp staende kuggkrans, vilken Or fOrbunden med drivhjulet genom ett fran kuggkransen eller fran drivhjulet itt sidan utskjutande f &bindelseorgan. The device according to the invention can thus be characterized essentially in that the gear housing arranged immediately next to the drive wheel is supported by a bearing which is mounted directly on the wheel shaft in the space bounded externally by a gear ring engaged with a gear, which is connected to the drive wheel. a connecting member projecting from the ring gear or from the drive wheel to the side.

For uppfinningens fortydligande hanvisas till bifogade schematiska ritning, som it ena sidan visar tva kanda anordningar for uppbaring av kugghjulskapan vid ett elektriskt drivet ralsfordon och it andra sidan sasom exempel visar tva utforingsformer av anordningen enligt uppfinningen. — Fig. 1 och 2 visa de bada kanda anordningarna i langdsektion. — Fig. 3 visar likaledes i langdsektion den forsta utforingsformen av anordningen enligt uppfinningen. — Fig. 4 visar pa samma satt den andra utforingsformen. For the clarification of the invention, reference is made to the attached schematic drawing, which on the one hand shows two known devices for supporting the gear housing of an electrically driven rail vehicle and on the other hand, as an example, shows two embodiments of the device according to the invention. Figs. 1 and 2 show the two kanda devices in longitudinal section. Fig. 3 also shows in longitudinal section the first embodiment of the device according to the invention. Fig. 4 shows in the same way the second embodiment.

I de olika figurerna ha motsvarande detaljer samma beteckningar. In the different figures, the corresponding details have the same designations.

Fig. 1 och 2 visa tva kanda anordningar for uppbaring av kugghjulskapan vid ett elektriskt drivet ralsfordon med fast motor (d. v. s. motor fast forenad med underredet som i sin fur vilar pa fjadrar), varvid kugghjulskapan 1 Or anordnad omedelbart invid det med drivaxeln 3 forbundna drivhjulet 2. Figs. 1 and 2 show two known devices for supporting the gear housing in an electrically driven rail vehicle with a fixed motor (ie motor fixedly connected to the chassis which in its fur rests on springs), the gear housing 1 being arranged immediately next to the drive wheel connected to the drive shaft 3. 2.

Vid anordningen enligt fig. 1 uppbares kugghjulskapan 1 av tva rullager 4, 5, anordnade pa omse sidor om ett stort kugghjul 6, som Or i ingrepp med ett kuggdrev 7, vilket sistnamnda Over en bOjlig koppling 8 ar f8r- 2— — bundet med den ej Tisade driymotorns axel. De hada lagren 4 och 5 aro anordnade pa. kugghjulets 6 nay. Nackdelen med denim anordning är att det mellan kugghjulet 6 och drivhjulet 2 anbragta lagret 5 ieke ar atkomligt. For inspektion ay detta lager fir det nodvandigt att uttaga drivaxeln, vilket innebar ett betydande arbete. In the device according to Fig. 1, the gear housing 1 is supported by two roller bearings 4, 5, arranged on opposite sides of a large gear 6, which Or engages with a gear 7, which the latter Over a flexible coupling 8 is connected to the non-Tisade drive motor shaft. They had layers 4 and 5 arranged on them. gears 6 nay. The disadvantage of the denim device is that the bearing 5 arranged between the gear wheel 6 and the drive wheel 2 is not accessible. For inspection of this bearing, it was necessary to remove the drive shaft, which involved significant work.

Vid anordningen enligt fig. 2 uppbares kugghjulskapan 1 ay en ihalig cylindrisk del 10, som i sin tur yid ena anden uppbares ay ett rullager 11. Ett annat rullager 12 är anordnat vid den cylindriska delens 10 andra ande mellan denim och kugghjulets 6 nay, varjamte kugghjulet 6 Or fast forbundet med en Iran drivhjulet 2 at sidan utskjutande rorformig del 13. Denna kanda anordning liar den nackdelen, att lagren 11 och 12 ieke Oro atkomliga. De kunna alitsa ieke inspekteras och muses utan uttagning av drivhjulsaxeln. In the device according to Fig. 2, the gear housing 1 ay is supported by a hollow cylindrical part 10, which in turn is supported in one end by a roller bearing 11. Another roller bearing 12 is arranged at the second end of the cylindrical part 10 between the denim and the gear 6 nay, respectively gear 6 Or fixedly connected to an Iran drive wheel 2 on the side projecting tubular member 13. This kanda device suffers from the disadvantage that the bearings 11 and 12 are not accessible. They can also be inspected and removed without removing the drive shaft.

I de hada oyannaninda fallen Or anvandandel av glidlager uteslutet darfOr att tillrackligt utrymme harfor saknas. For ovrigt skulle, om lagret 12 (fig. 2) utg,jordes ay ett glidlager, detta lager ha att rotera kring den fasta axeln 10, vilket man i praktiken vanligtvis undviker. In those cases where the use of plain bearings is excluded, there is a lack of sufficient space. Incidentally, if the bearing 12 (Fig. 2) is to be grounded in a sliding bearing, this bearing would have to rotate about the fixed shaft 10, which is usually avoided in practice.

Vid den forsta utforingsformen ay anordningen enligt uppfinningen, visad i fig. 3, anvandes ett av tva. debar bestilende glidlager 14, som ar anbragt direkt pa drivaxeln 3 omedelhart invid drivhjulet 2. Detta lager uppbiir kugghjulskapan 1, inuti yilken är anordnad en kuggkrans 15 och ett kuggdrev 7, som Or i ingrepp med kuggkransen. Del framgar av figuren, att lagret 14 Or anbragt i det rum, som omslutes av kuggkransen 15. Denna är fast ph en fran drivhjulet 2 at sidan utskjutande rorformig del 16. Denna del stracker sig in Over lagret 14 utmed en viss del ay dettas langd och p0 visst radiellt aystand darifran, vilket Or fallet Oven med kuggkransen 15. Eventuellt kan den rOrformiga delen tillhora kuggkransen och vara forbunden med drivhjulet. In the first embodiment of the device according to the invention, shown in Fig. 3, one of two is used. Debar ordering plain bearing 14, which is arranged directly on the drive shaft 3 immediately adjacent to the drive wheel 2. This bearing supports the gear housing 1, inside which a gear ring 15 and a gear 7 are arranged, which engage with the gear ring. Part shows from the figure that the bearing 14 Or is arranged in the space which is enclosed by the ring gear 15. This is fixed to a tubular part 16 projecting from the drive wheel 2 to the side. This part extends in. Over the bearing 14 along a certain part ay its length and at a certain radial distance therefrom, which is the case above with the gear ring 15. Optionally, the tubular part may belong to the gear ring and be connected to the drive wheel.

Kugghjulskapan 1 bestar lampligen av tva delar, som Oro sammanfogade utnied ett genom drivaxeln gaende lutande plan. The gearbox housing 1 apparently consists of two parts, which Oro joined together in a sloping plane passing through the drive shaft.

Denna anordning medfor foljande fordelar framfOr de ovan beskriyna kanda konstruktionerna: Lagret 14 Or belt atkomligt, medan det befinner sig ph sin plats. For inspektion darav behover man endast borttaga kugglijulskapans 1 undre del. Genom all lagret 14 bestar av tva delar kan det borttagas och fodret bytas utan att man harfor behayer uttaga drivaxeln och annu mindre taga ay drivhjulet frail denna, sasom fallet Or yid anordningarna enligt fig. 1 och 2, dit man vill uttaga lagren 4, 5 resp. 11, 12. This device has the following advantages over the known constructions described above: The bearing 14 is easily accessible while it is in its place. For inspection, only the lower part of the gearbox 1 needs to be removed. Through all the bearing 14 consists of two parts, it can be removed and the liner changed without having to remove the drive shaft and even less take the drive wheel from it, as is the case with the devices according to Figs. 1 and 2, where you want to remove the bearings 4, 5. resp. 11, 12.

Lagret 14 i fig. 3 behhver naturligtvis icke yam a utfort i flera delar. Det kan Oven yara i ett stycke med kugghjulskapan 1 i stalletfOr att mottaga ett ringformigt organ 17, yid vii-ken kugglijulskapan Or fast. Vidare kan kugghjulskapan 1 besth ay tyh delar, som aro sammanfogade utmed ett tranyersalplan. I detta fall uppnar man pa samma gang fOrdelen av att ha lagret atkomligt och att kunna inspektera drivhjulsaxeln genom axiell forskjutning ay fodret. Darvid kunna Oven kugghjulskapans bada delar avlagsnas fran varandra genorn axialforskjutning efter borttagande av en ring 18, som stoder mot en pa drivaxeln anorclnad flans 19. The bearing 14 in Fig. 3 does not, of course, need to be made in several parts. It can also be integral with the gear housing 1 in the stable to receive an annular member 17, in which case the gear housing Or is fixed. Furthermore, the gearbox 1 can consist of five parts, which are joined together along a tranier hall plane. In this case, the advantage of having the bearing accessible and being able to inspect the drive wheel axle by axial displacement of the feed is achieved at the same time. In this case, both parts of the gearbox can be removed from each other by axial displacement after removal of a ring 18 which abuts a flange 19 mounted on the drive shaft.

Vid den i fig. 4 yisade andra utforingsformen Or anordningen analog med den foreghende. Emellertid bestar det kugghjulskapan 1 uppbarande lagret har ay tvO. rullkransar 20. Dessa Oro pa samma still som lagret 14 (fig. 3) atkomliga f Or inspektion utan uttagning av drivaxeln. Det Or t. o. in. genom det till forfogande staende utrymmet mojligt att pa platsen avhigsna marken pa rullkropparna. och Oven att byta dessa. Vid omsyn skjutes naturligtvis lagerhuset 21 axiellt at vanster i fig. 4. DO lagret befinner sig i arbetslage, hindrar en avtagbar ring 22 sadan axialforskj utning. In the second embodiment Or shown in Fig. 4, the device is analogous to the previous one. However, the gear bearing bearing 1 has ay tvO. roller rings 20. These concerns in the same position as the bearing 14 (fig. 3) accessible for inspection without removal of the drive shaft. It Or t. O. In. due to the space available, it is possible to relinquish the ground on the roller bodies on the spot. and Oven to replace these. When inspected, of course, the bearing housing 21 is axially pushed to the left in Fig. 4. When the bearing is in working position, a removable ring 22 prevents such axial displacement.

I de hada heskriyna utforingsformerna gar det radiella mittplanet genom kuggkransen 15 och kugghjulet 7 praMiskt taget genom det kugghjulskapan 1 uppbarande lagrets mitt. In the had heskriyna embodiments, the radial center plane passes through the ring gear 15 and the gear wheel 7 practically through the center of the gear housing 1 supporting the bearing.

Claims (9)

Patentansprak:Patent claim: 1. Uppbaringsanordning for kugghjulskapan yid ett elektriskt drivet ralsfordon, kam, neteeknad darav, att den omedelbart invid drivhjulet (2) anbragta kugghjulskapan (1) uppbares av ett lager (14, 20), som Or monterat direkt p0 hjulaxeln (3) i det rum, som utat begransas ay en med ett kuggdrev (7) i ingrepp staende kuggkrans (15), vilken Or forbunden med drivhjulet (2) genom ett frau kuggkransen eller frhn drivhjulet at sidan utskjutande forbindelseorgan (19).Support device for the gear housing by means of an electrically driven rally vehicle, cam, characterized in that the gear housing (1) arranged immediately next to the drive wheel (2) is supported by a bearing (14, 20), which is mounted directly on the wheel axle (3) in the space, which is externally delimited by a gear ring (7) engaged with a gear (7), which is connected to the drive wheel (2) by a connecting gear (19) projecting from the gear ring or from the drive wheel to the side. 2. Anordning enligt patentanspraket 1, kannetecknad &ray, att namnda forbindelseorgait (16) Or utfort i ett stycke med drivhjulet (2) och stracker sig in Over lagret (14, 20) utmed en viss del av dettas langd samt pa visst radiellt avstand darifran.Device according to claim 1, characterized in that said connecting member (16) is made in one piece with the drive wheel (2) and extends in over the bearing (14, 20) along a certain part of its length and at a certain radial distance therefrom. . 3. Anordning enligt patentanspraket 1, kannetecknad daray, att forbindelseorganet (16) Or utfort i ett stycke med kuggkransen (15) och stracker sig in Over lagret (14, 20) utmed en viss del ay dettas langd samt p0 visst radiellt aystand darifran.Device according to claim 1, characterized in that the connecting member (16) is formed in one piece with the ring gear (15) and extends in over the bearing (14, 20) along a certain part ay its length and at a certain radial distance therefrom. 4. Anordning enligt patentanspraket 1, kannetecknad darav, att kring lagret (14, 20) Or kvarlarimat ett fritt rum, som Or tillrackligt stort fOr att lagret skall bliva atkomligt fOr ornsyn utan att drivaxeln (3) och drivhjulet (2) avtagas. — — •3Device according to claim 1, characterized in that around the bearing (14, 20) there is a free space which is large enough for the bearing to be accessible for inspection without the drive shaft (3) and the drive wheel (2) being removed. - - • 3 5. Anordning enligt patentanspraket 1, kannetecknad darav, att lagret utgores av ett gild-lager (14).Device according to claim 1, characterized in that the bearing consists of a gild bearing (14). 6. Anordning enligt patentanspraken 1, 4 och 5, kannetecknad darav, att lagret bestar av flera delar, som aro avtagbara fran drivaxeln utan att denna uttages.Device according to patent claims 1, 4 and 5, characterized in that the bearing consists of several parts which are removable from the drive shaft without it being removed. 7. Anordning enligt patentanspraket 1 och 4, kannetecknad darav, att lagret utgOres av ett rullager (20).Device according to claim 1 and 4, characterized in that the bearing is constituted by a roller bearing (20). 8. Anordning enligt patentanspraket 1, kannetecknad darav, att det radiella mittplanet genom kuggkransen (15) och kuggdrevet (7) gar i huvudsak genom lagrets (14, 20) mitt. Stockholm 194Device according to claim 1, characterized in that the radial center plane passes through the ring gear (15) and the gear train (7) substantially through the center of the bearing (14, 20). Stockholm 194 9. Kungl. Soktr. P. A. Norsteat A Silaer 4000099. Kungl. Soktr. P. A. Norsteat A Silaer 400009