DE1629479A1 - Method and device for producing a shock and noise-absorbing wheel body for high-speed rail vehicles - Google Patents

Description

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Method and device for the production of a shock-absorbing and noise-absorbing device Wheel body for high-speed rail vehicles '-JL.-I !!!! ..- ". \ .'- !! - LJL .-.) !!). L!' '!'.! U! J <! T! -! - «'!) F'1-! R .''...-..- The The invention relates to a method for producing a shock-absorbing and noise-absorbing one Wheel body with the wheel tires. Absorbent, non-metallic, single or double trained wheel disc made of vibration-damping material, e.g. B. one with curable Reinforcement agent impregnated with synthetic resin, for light wheel sets of high-speed users Rail vehicles and a method for producing such shock and noise-absorbing Wheel center.

T - *, '..'-' "''.-'-. ''; 'I \' * - 'Ba istbkanatRohlingesanzmeHHisohexRadkorpe? Through as & n @@ alzen and then to machine them, With this method, the quality of the wheel disks is essentially dependent on the exact compliance with the quantitative composition of the steel melt. However, since the batches sometimes differ greatly from one another, wheel disks are constantly becoming more different quality made.

The possible errors when rolling the wheel disc loop, such as & uftreteodeKeybaas6 & tUbswalEmgSgMehe? and wrinkles, also have a negative impact on the service life of the wheel centers and require also costly rework. The existing in the case of non-working areas Rolled skin partially shortens the service life of such wheel bodies. ...,. wise essential. Therefore, so far, the cost-intensive machining process necessary. This production requires, .. also requires high investments. it is also known, blanks of all-metal wheel bodies zip in the sand, mold or Half-shell mold to be cast. These are then normally annealed and relaxed and descaled and then fed to machining. The quality of the wheel disks is also important in this process essentially dependent on the exact adherence to the batch composition. Deviations lead to the production of wheel bodies of different quality. The one when pouring the wheel disc ratchet possible errors, such as B. Blowholes, bubbles, rests, cracks as well as other gu # incompleteness, lead to rejection or muason as well cost-sensitive rework can be eliminated. Sine naohar-, almost complete manufacture of wheel disc blanks also here inf not possible due to the errors that occur. The elimination of surface defects grinding makes additional normalizing necessary. Also is the It is a substantial fact that there is no need for a loop permit Prepare the committee. This production also requires high investments.

The well-known, all-metal ones, made of both steel and aluminum manufactured, wheel bodies generally have the disadvantage that # the bath body has a too high Have their own weight. This results in great wear & nwheel and rail as a result the relatively large unsprung masses. Since both the axial and the trangential Spring action is insufficient, is sufficient, especially with small vertical ones Spring travel not given sufficient shock absorption. The partially insufficient The ring spring effect of the not sufficiently elastic all-metal wheel disc forces au Again, this can be done by heating the Wheel tire to structural changes and wheel tire cracks or, in the case of high-strength steel types, to breakouts as a result of surface deterioration.

A wheel, particularly for rail vehicles, has already been proposed with a niohtaotallic shock and intoxication, provided between a steel tire and a steel damping wheel disc. In particular, plastics and hard paper pulps are used for production or wooden discs in question. So z. B. used the well-known synthetic resin pre # wood, which is created because # a larger number of thin wood veneers with in between lying cresol or phenol films or even after immersion in synthetic resin high pressure and high temperatures, preferably in such a way that the fiber resistance the veneers alternately crossed iBt. This material has a high pressure and sole resistance, but it shows under the influence of liquids when there is also a low level of quality in relation to such veneer materials Shear stresses or

Forces that act on machined areas, for example holes, where the veneer edges are exposed, too small. for this reason, the wheel tire not directly on the veneered wheel cover, but can can only be achieved with the interposition of an additional self-contained rim ring, which on the one hand is the wheel disc and on the other hand, the wheel tire under radial and axial pressure in the pre # seat aufni @@ t. This wheel center is due to its complex and complex technology, E.g. durob the high energy expenditure necessary for pressing the veneers as well the additionally required rim ring, see below cost-intensive. The well-known wheel centers Both metal and plastic-based can therefore meet the required conditions does not fully do justice.

The purpose of the invention is to eliminate the known ones Process and defects adhering to en manufactured wheel bodies as well as in rationalization the entire process engineering.

The invention lies in the. Task without major investments to create a ration a, unemployed process for the production of a wheel center, the one with a plastic-based, vibration-damping material made from Do Sto # and a reinforcing means consisting of a wheel disc of high elasticity, with particular structural design of the same in connection with the wheel hub, which, in addition to extensive strength and damping properties, are maintenance-free and is temperature and weather resistant to a high degree. The process engineering, i.e. the device for carrying out the method should be high in terms of wages and salaries Material costs ao be designed that su scrap or rework BU error phenomena, such as.

Air pockets, bubbles and cracks are excluded because large quantities are produced economically in a relatively small production space can be.

- ..,. According to the invention, the flow & be solved by means of overpressure or vacuum between one of the preferred veins be, by an elastic means, e.g. B. plastic film or the like., Airtight separated Mold chambers, a hermetically sealing printing form and one with this the reinforcing agent, z. B. fiberglass, female mold chamber connected connected resin storage container erseutey pressure difference, the synthetic resin, preferably low viscosity, roactive laminating resin, injected into the reinforcing agent and simultaneously through owischon. both mold chambers pressure difference over the elastic means evenly compressing against the wall of the mold chambers pressed and after pressure compensation in the molding chambers, e.g. B. cure with the wheel tire at the same time during the subsequent heat treatment in the pre # seat, is connected.

-1US method according to the invention is further characterized by that the prefabricated Radsoheiben even after hardening with a previously preferably supercooled axle shaft. and dam vorerhitsten Ilael tires duroh Aufproseen bzrt.

Shrinking on to achieve a transverse pre # fit and additionally through Heat-curable adhesives applied to the connecting surfaces, preferably however Adhesive film, pre # be connected.

The use of heat-curable adhesive film after curing the Radsoheibe taking place assembly of the wheel body increases the interference fit of wheel tires and axle shaft ate. the wheel cover and is therefore particularly suitable for wheelsets used by high-speed drivers Suitable for rail vehicles. When the preheated tire is shrunk on a double-formed wheel boe is useful if it has a hole Compressed air cooling is applied to the wheel base to counteract a build-up of heat.

The process engineeringbaw.the deviceuxexecution of the process for the production of preferably single-disc wheel bodies by means of overpressure or vacuum be without gS @ rS of the invention in that # the wheel disc cross-sectional profile appropriately designed mold chamber of the printing forme a releasably attached cover cap carries, with one in the forming the additional pressure space the other molding chamber the inlet opening onto the printing forme, e.g. B. for compressed air, is equipped and da # the cover cap the elastic means, z. B. the plaat film, airtight, orsugswiseiNBeois their outer edge and the middle, against the wheel disc cross-sectional profile corresponding mold chamber of the printing forme. Identifies another feature This device is characterized by the fact that the wheel disc cross-sectional profile appropriate Mold chamber above one in the highest lbone of its cross-sonity profile, but below the sealing surface for the plaat film o. The like., arranged radial bore along with abla # stutzen with the ataosphere soe z. Bye about one in the deepest level of yours Cross-sectional profile opening pipe stopcock or the like. with a storage container far the curable resin is bonded.

The device is characterized in a further embodiment of the invention for carrying out the method of preferably double-sided wheel bodies by means of Vacuum or pressure in particular because the elastic means consist of a core bladder from preferably plastic foam, e.g. B. Pehnolharzschaum, with hermetically sealed soles Outer skin, e.g. B. made of plastic film, lig designed print shape can be inserted and that the shape of the NHBer. And the second molding chamber The identification bubble that forms the printing form over, in the highest level, tEror cross-sectional profiles opening, separately lockable pipelines with a common cross tube assembly Vacuum pump and the lower part of the mold chamber of the printing form via a likewise lockable pipeline opening into the lowest level of its cross-sectional profile with a storage container @ yfdashartbarenKunstharaverbundenaindRsist here Useful because the pipelines in the printing form and the core bubble are vacuum-tight Are arranged pluggable.

The RohrleitMag ung of the dex Radaohiben cross-sectional profile corresponding Forming chamber of the pressure researcher is two-part of a template vessel, e.g. B. with window to absorb the excess synthetic resin emerging from the mold.

The PpeßerbiaduRgswiacbende? Single or double trained BloMtlliseheaRdacheibenndR & dreifenaoieAchsmalle the wheel body produced by the method according to the invention is preferred using e.g. B. hot-curable adhesive applied to the joint surfaces or adhesive film by means of pressed-on security elements, e.g. B. a shaped bush, Clamping bush and a forming, secured.

The double-emitted wheel disc is particularly used when it is highly stressed Wheel sets suitably equipped with tensioning screws to stabilize the PreD connection.

The process according to the invention does not require high investments. It is efficient, since reworking on the wheel center after the wheel disc has hardened not required boil. An Asschu # @ uote as a result of possible work or

Measurement errors are extraordinary due to the device according to the invention limited, in particular it is guaranteed that defects such as air pockets, bubbles, Rip formation, etc., can be prevented properly. The method according to the invention ensures the production of wheel bodies of great elasticity, the high shock and noise absorbing Have an effect, and in addition to extensive strength and damping properties are completely maintenance-free and highly temperature-resistant, weather-resistant. the The service life of these wheel centers is very long. You have a precisely defined fiberglass rope and thus precisely fixed meohanischa parameters that are not significant, the service life negatively influencing scatter. The process of the invention and dis Associated process engineering allow in conjunction with the orcrnagsichan following HoiC hardening an economical production of large quantities. in a relatively small production space.

The invention is to be shown schematically on two below Embodiments of an apparatus for carrying out the method and several Exemplary embodiments of had bodies manufactured according to the invention are explained in more detail. At the same time as the device eaZl according to the invention, the function of the same is explained will.

The accompanying drawings show: FIG. 1: the cross section of a Printing form for the production of e wheel bodies by means of overpressure; rl, 2: the cross section a printing forme for the production of double-disc wheel bodies by means of a vacuum; FI, 3: the cross-section of two embodiments of a double-disc wheel body; Fig. 4 shows the cross section of two embodiments of a one-piece wheel body.

The Druckfor @ according to # Fig. 1 consists of a molding chamber 1, which is the Radsoleiben cross-sectional profile corresponds and a releasable z. B. by means of screws 2 attached hermetically sealing cover cap 5 carries. The cap 5 is with of the inlet nozzle 4 which joins the other molding chamber 3 forming the pressure space for Pre # air or the like. equipped.

The llzdeoa cap 5 presses the elastic means, e.g. B. a plastic film 6, in the area of their outer edge and the center, airtight gon the mold 1 of the printing form. The shape chamber k of the printing forme is in the highest level of its cross-sectional profile, however, below the sealing surface 7 for the plastic film 6, with a clip a drain 9 ripping radial bore 10 equipped. About the bore 10 is ias interior the molding chamber 1 is connected to the atmosphere.

In the deepest level of the cross-sectional profile 8 of the molding chamber 1 ends a pipeline 11 with a shut-off valve 12.

The pipeline 11 connects the through the Plastfolis 6 Gegon the Mold chamber 3 airtight interior of the mold chamber 1 with a storage container 13 with nozzle 14 for the curable synthetic resin.

The function of this act is as follows: aa a '' r. t one Defined amount of glass fiber 15 as a reinforcing agent for the wheel disc in the molding chamber 1 inserted evenly and the printing form by means of the cover cap 5 hermetically closed with the interposition of the plastic film 6. The storage container 13 contains the required amount of curable synthetic resin, preferably of low viscosity reactive lamination resin. Thereafter, a pressure Pd z. B. applied to the plastic film 6 by means of Pre # air. At the same time is over the nozzle 14 applied to the reservoir 13, a pressure PF that must be higher than that Via the outlet 9, the atmosphere acting on the inside of the molding chamber 1 is reached Pressure Pa (PF> Pa). In this way, that is located in the storage container 13 Synthetic resin uniformly into the glass fiber material 15 located in the molding chamber 1 injects and penetrates it completely.

It must be noted here that the over the nozzle 14 of the storage container 13 abandoned pressure PF smaller resp.

. 11 a e t Ci. ° p. ~ -. -chamber 3 is given pressure Pd, there schst the plastic film 6 lifts off and the inflowing away the fiberglass material.

.'a.b.c'Q-c $ g l, C3. '' '. , Bx'afl i3. $. '' t p dv close. "Oc-nden Means consists of a core bubble 18 made of plastic foam, e.g. B. phenolic bara foam, with a hermetic. s3. . c. ua 8 e a. -. two-part printing forme 16, 17 inserted, this is divided into the molding chambers 1 and 3 in the same way as the first exemplary embodiment. The molding chamber 1 of the printing forme 15, 17 and the core bubble 18 are above in the highest Level of their cross-sectional profiles opening pipes 20, 20 a with a common Cross tube piece 43 connected to a vacuum pump not shown. The RehrLeitungen 20, 20 a are or the like by stopcocks. 21, 22 can be shut off separately. In the deepest At the level of the cross-sectional profile of the molding chamber 1, the pipeline 23 opens with the shut-off valve 24, which connects the shaped chamber 1 to the storage container 25 which receives the synthetic resin. At the Kreuzrchrstück 43 is a known U-leg measuring device 26 arranged. It is expedient that the pipelines 20, 20 a with the core bladder and the molding chamber 1 are releasably connected by steal connections 27, however, vacuum-tight.

A template # 28 is connected to the pipeline 20 of the Forokano.

The function of this device is as follows: Analogous to the first In the exemplary embodiment, a defined amount of glass fiber material is placed in the molding chamber 1 15 as a reinforcing agent evenly inserted into both molded parts 16, 17 tokens and the dectomnaao 18 closed. The pipes 20, 20 a are then inserted in a vacuum-tight manner.

°. . a Y,. vr. tl3t wxda ibr-the pipeline 20, 20 a the molding chamber 1 and the interior space of the core bubble 18 forming the mold chamber 3 are evacuated at the same time.

Then, by operating the stopcock 24, the pipeline de the 25be-. sbt c. ,. approx. la c'ft 'fiberglass material 15 is injected and penetrates this completely evenly. After the excess synthetic resin has escaped into the receiving vessel 28 the supply of synthetic resin is blocked by actuating the tap 24 and the molding chamber 3 by actuating the mockery overpressure arising in the interior space of the core bubble 18 that forms the molding chamber 3 compared to the still evacuated molding chamber 1, the glass fiber material is uniform compressed against the wall of the molding chamber 1, with excess resin is pressed into the template container # 28.

This is followed by pressure equalization in both porm chambers. With this device the double-disc wheel center is preferably manufactured in one operation, by placing the wheel tire 30 and the snap ring 31 in the mold and hardening be bullied. The core bubble 18 t remains during and after curing aladS-apfendsa Means for avoiding the so-called drum effect in the double-formed wheel disk32 .. ' , Fig. 3 shows the cross-section of a double-disc wheel center. According to FIG. 3, the double wheel disks are designated by 32. Highly stressed Wheel body, e.g. B. for high-speed rail vehicles, mch deEz gn der For this purpose, the prefabricated wheel disks 32 are provided with one for assembly preferably supercooled axle shaft 33 with the additional use of on the Connection surfaces applied, known, curable adhesive or adhesive film 34 connected by pressing. The wheel pipe 35, however, is preheated and removed Shrunk onto the wheel disk 32 using heat-curable adhesive or adhesive film 34. The double wheel discs e can be offset with a hole 36, which can be used for pre # air cooling when shrinking on.

The pre # fit between wheel disc 32 and wheel tire 35 resp.

Axle shaft33is by-dieSl & hQ? Xms @ lesentwl @ cBc. dea the snap ring 37, the z. B. made of hot hardness, preferably also glass fiber reinforced Synthetic resins with thermally conductive fillers prefabricated and used in the molding of the wheel disks with inserted shaped ring 38, the shaped bushing 39 and the plant or. Chipu bushing 40, 41 stabilized.

At the same time, in the case of wheel centers with a double-disc design - usingSpannsehSBb@B42.erhKhtes6§n g; an g @t two further designs of a single-disc body. The pressing the simply trained acaa 32 b A, see r 3 a. increased by means of tensioning screws 42 will.

Fig. 4 shows two further embodiments of a single disc wheel body. Pressing the simply designed wheel disk 32 onto the supercooled axle shaft 33 takes place here analogously to the assembly with double-disc wheel bodies. Here, too, is the assembly on the connecting surfaces between Wheel tires 35 and wheel disk 32 as well as axle shaft 33 additionally hardenable adhesive or adhesive film applied, otherwise the pre # connection is shrunk on or pressing takes place.

The pro # seat between wheel disc 32 and wheel tire 35 resp.

Axle shaft 33 is also a securing element here, such as »Da snap ring 37, shaped bushing 39 as well as clamping bushing 41, 8tLit iert stabilized,

Claims (1)

Patent application ~ I-1.YertB-hrensmr.Herstellnn <geisssoßd'geyseMSspfe '-'- 1i, Li, Ciri ~ ib'rr46St8s1Q334y.ri °° denRadkSrpersBides'Radreifenaufnahmendessautt looks single or double Wheel washer made of 3schingusgsdSmpfendemMateriales B.iaes.-Nit curable synthetic resin impregnated reinforcing agent, for light wheel sets of high-speed rail vehicles, dadurohsekeaaseishseto <SaSmittelbeduekmd / or vacuum between one of preferably two by an elastic means (6-! 8) airtight separation chambers (19 3) eineyheetise.sehleßadenDxokform un mideinemßitdiseäs.§? @? 8täkng @ mttel (5) poBö & lasf @? sateialafnehaasdes'Fog & sms '-) iT'es'bm' which synthetic resin storage containers (13, 25) generated pressure difference, the synthetic resin, preferably low-viscosity, active L & minieyba-rsinda.sTeystE'mgsmittel (3) 'Inisiextundlaiohsitidoswisshsa.bothFassjammer (ty3) existing pressure diffesens? dasel-. °°. . ,. I r r. Growing of the molding chambers (1) pressed and after pressure compensation @ iohn'den-FoNkamBen (9) ßo3NitdesRa-d-. soaps (30) leiohs@&tisbelBBshverbindsden.Hsißhartcn INPr @ ßs & t & .v @ rbusd @ a'wird 2. Process for the production of a shock-absorbing and noise-absorbing wheel body with the Tire-absorbing, not jet. single or double-trained RadsehlbeB & saclngMngsdäapfand @ mskatofffuLeioht? sd-SU. tes high-speed rail vehicles, characterized in that # the Vpre-fabricated Wheel disks (32) after hardening with a previously preferably lower axle shaft (33) and the preheated wheel tire (35) by pressing and shrinking on by means of hardenable adhesive or adhesive film applied to the connecting surfaces at # (34) pre # be connected. 3. Process for the production of a shock-absorbing and noise-absorbing double-pane Wheel body according to claims 1 and 2, thereby resulting in the shrinking on of the wheel tire ad ae the double wheel disc (32) via a bore (36) Pr select erS 4o for execution the process for the production of single-disc wheel centers by means of overpressure or vacuum according to claim 1, characterized in that the wheel disc cross-sectional profile appropriately designed molding chamber (1) of the printing form is detachably fastened and with one opening into the other molding chamber (3) of the printing form that forms the pressure space Inlet stutzen (4) gc'Bof {iFB & lft'agesQsietAbdeakka-ppo (5) drains, 9 e the elastic Means, e.g. B. a plastic film (6), fMichtSoBc-InB @ seieihr @. @ Outer edge and the Press the middle against the mold chamber (1) of the printing forme. 5. Device for carrying out the method of manufacture 9 <s Wheel body ga der t ¢ utoinß 1,), characterized in that # the molding chamber (1) of the Printing form above one in the highest level of its cross-sectional profile (b) but below the seal A (7)? the plastic film (6) or the like. arranged radial bore (10) in addition to the drain pipe (9) with the atmosphere as well as z. B. about one in the deepest Level of its cross-sectional profile (8) opening pipe (11) together with shut-off valve (12) or the like. connected to sinem storage container (13) for the curable synthetic resin is. 6. Apparatus for carrying out the method of manufacturing van double-pole wheel bodies by means of vacuum or overpressure rush Jspruoh1; dadurchgekemiseiohnetgdaßdas Elastic means consist of an outer skin (9), EB & usPLa & tfoliab, which can be wrapped in the two-part printing form O & y-! 7) onKembl & se (18) s-? load foam, e.g. there. RdieFornkasaer.Ct) eDruökforaundie? Cra chamber (3) forming nuclear vesicle (18) via opening in the highest level of their cross-sectional profiles, separately lockable Pipelines (20, 20 a) and a common Krouzrohrstäck (34) with a vacuum pump and the lower part of the molding chamber (1) of the printing forme is also abaporable on the deepest level of its cross-sectional profile opening pipe (23) with a storage container (25) for the curable synthetic resin are connected. Device for carrying out the process for the production of double-disc wheels with vacuum according to claim 1 and 4, characterized in that # the pipes (2 20a23) indeD.MQid'ora! And the core bubble (18) are arranged so that they can be inserted in a vacuum-tight manner. 8. Device for carrying out the process for production -tOli double-disc wheel bodies by means of vacuum according to claims 1, 6 and 7, characterized in that because the pipe-'LeSto (20a) of the molding chamber () of the pressure fora (16,17) is not connected to a pre-discharge vessel 28). . 9. Non-metallic, non-metallic, sinf-. or double-formed wheel hub in accordance with the manufacturing process Claim 1, characterized in that the S <MoPreßverbindunßsisohaa wheel disc (32) dRadreifen (35) '3wieAehsweH.e. (33) .sutlhdroh-' 'NnteB?erwendsBßs.Bö&@ißssb!' @ sSl @ b @ r6 @ Sle-. foil (34), pressed-on securing elements, e.g. B. Fors bushing (39), clamping bush (41), Forming (38) and snap ring (37) pierced 10. Wheel body with the tire pick-up, non-metallic, dappelt auasebildeterRadsch & ibeeaäJB ancestors according to claim 1, characterized in that # the double-shaped wheel (32) is equipped with tensioning screws (42) to stabilize the pre # connection. 11. Wheel body with the wheel tires receiving, non-metallic, simple or multiple wheel disc according to claim 9, characterized in that because # the well-known Artapurkranzf- oderlaufkranxsaitig single or multiple corrugated The wheel disc (32) is guided tubularly around the axle shaft (33) on the hub side, wherein the Überca-ngTonderRadaoheibe (32) suarohrfSraigenTeil is rounded and with de Fortaring (38) as well as the clamping sleeve (41) of the same or different type of material from the ion office (33) is detachable by pre # seat or non-detachable by adhesive connection.