EP3504097A1 - Rad-anordnung für ein schienenfahrzeug - Google Patents
Rad-anordnung für ein schienenfahrzeugInfo
- Publication number
- EP3504097A1 EP3504097A1 EP17765438.1A EP17765438A EP3504097A1 EP 3504097 A1 EP3504097 A1 EP 3504097A1 EP 17765438 A EP17765438 A EP 17765438A EP 3504097 A1 EP3504097 A1 EP 3504097A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- carrier element
- support member
- arrangement according
- support element
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 210000002414 leg Anatomy 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000003414 extremity Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL 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
- B61F15/00—Axle-boxes
- B61F15/20—Details
- B61F15/28—Axle-boxes modified to ensure electrical conductivity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
Definitions
- the invention relates to a wheel assembly for a
- Rail vehicle in particular for a loose-wheel chassis of a low-floor vehicle, wherein the wheel assembly at least one wheel, at least one stub axle, at least one
- Speed sensor at least one grounding contact, as well as arranged on the stub axle support means.
- axles or axle stubs of chassis especially low-floor vehicles, are common
- Components such as speed sensors, grounding contacts and
- Wheels are connected via stub axles on chassis outer sides rotatably connected with portal axes arranged near the ground, in order to
- a brake unit of a rail vehicle may e.g. a
- Brake disc and a brake caliper and other components include.
- the brake disc is often connected via a hub fixed to the wheel and rotates with this, while the brake caliper is firmly connected to the stub axle and no rotation
- the load on the stub axle due to the components arranged on it is uneven: while the brake unit exerts a heavy load due to weight and braking forces, the load due to the speed sensor and the earth contact etc. is lower.
- the prior art EP 1 258 410 B1 is known. It describes an arrangement in which components of a grounding contact arrangement, an encoder arrangement for a slide protection device and a braking device via Receiving means are mounted on a single carrier element.
- the support element is arranged on the front side on a stub axle and firmly connected thereto.
- EP 0 943 519 B1 shows a vehicle wheel which is provided in particular for a low-floor vehicle.
- Au the outside end face of a hub is a
- a transmission part such as. a transmission part, a brake disc, etc.
- a brake disc such as. a clutch disc, etc.
- the invention has for its object to provide an improved over the prior art wheel assembly.
- Carrier device comprises at least a first carrier element and a second carrier element, which are each designed as individual components.
- the advantage is achieved that the support means can be flexibly designed with regard to occurring loads and from this a weight and
- first support member and the second support member each have their own choice of materials are made, which depends on the load of the first support member and the second support member due to the components to be arranged thereon.
- Carrier element be arranged and this with a
- the second carrier element heavily loaded and is therefore designed as a massive component of a high quality material.
- the second carrier element can be arranged, for example, in the form of a jacket around the stub axle. On the second
- Carrier element, the speed sensor and the grounding contact can be arranged. Since the second support member is loaded only due to the weight forces of the tachometer and the ground contact, a lighter material with inferior mechanical properties than for the first support member can be selected. This causes a weight advantage. Due to the described arrangement, in which the heavier, first carrier element is provided on the inside with respect to its radial position to the axis of rotation of the wheel assembly and the lighter, second carrier element, a low moment of inertia of the carrier device is achieved.
- Infrastructural facilities such as a pit, a high track etc. and therefore easy, quick and inexpensive possible.
- the at least first support element is designed as a pressure cap.
- the advantage is achieved that, in addition to its function as holding means for components of the wheel arrangement (for example a brake unit), the first carrier element also secures the wheel against undesired, axial movements. Due to this functionality, the first carrier element can also be used for wheel arrangements in which no
- Component e.g., no brake unit
- Carrier element is arranged, but only its function is required as a pressure cap. An advantageous embodiment is obtained when the
- the first carrier element can, for example, via a
- Carrier element has at least a first recess, in which at least components are arranged, which rotate with the wheel.
- a speed sensor and a speed encoder crown wheel can be arranged in the first recess.
- the invention is based on
- FIG. 1 shows an oblique view of an exemplary embodiment of a wheel arrangement according to the invention, wherein a wheel with a wheel hub, a flange brake disk, a first carrier element with a brake caliper and a second carrier element with a speed sensor and a grounding contact and a section from a gantry axis are shown; and 2 shows an oblique view of an exemplary embodiment of a wheel arrangement according to the invention, wherein a grounding contact and a detail of a stub axle, a wheel hub, a first carrier element and a second carrier element are shown.
- FIG. 1 An oblique view illustrated in FIG. 1 shows a variant of a wheel arrangement according to the invention for a loose-wheel chassis of a low-floor tram, wherein a wheel 3 is arranged on an outer side of a non-visible chassis frame with which a portal axle 1 is connected on an inner side , The wheel 3 is connected via a visible in Fig. 2 stub axle 2 rotatably connected to the gantry axis 1.
- the wheel 3 has a wheel flange 5, a running surface 6 and a wheel web 7, wherein the wheel web 7 is fixedly connected to a wheel hub 8.
- a flange brake disk 9 is detachably connected to the wheel hub 8 via a first hexagonal bolt 11, a second hexagonal bolt 12, a third hexagonal bolt 13 and also non-visible additional bolts.
- a carrier device 23 comprises a first carrier element 24 and a second carrier element 25.
- the first carrier element 24 is provided on a side facing away from the chassis frame or the portal axle 1, the fourth hexagonal bolt 14, a fifth hexagonal screw 15, a sixth hexagonal screw 16 and a seventh
- Hexagonal screw 17 which are arranged parallel to the axis of rotation 4 and around this, with the stub axle. 2
- the first support member 24 has a circular sector-shaped portion, with the over an eighth hex screw 18, a ninth hexagonal screw 19, a tenth hexagonal screw 20, an eleventh
- Hexagonal screw 21 and a twelfth hexagonal screw 22 is connected as a brake caliper brake unit 28 is connected.
- the first support member 24 made of tempered steel 42CrMo4 + QT is executed.
- a friction ring 10 of the flange brake disk 9 is between a first leg 29 and a second leg 30 of the
- Brake unit 28 is arranged. During braking, brake linings provided on the first limb 29 and the second limb 30 are pressed against the friction ring 10.
- the cylindrical second support member 25 is arranged. It is connected via a keyway, not shown, shell side with the stub axle 2 and secured in this manner against rotation.
- Speed sensor 31 and a grounding contact 33 are provided, which are bolted to the second support member 25.
- the second carrier element 25 is mechanically loaded only weakly by the speed sensor 31 and the grounding contact 33 and is therefore made of structural steel S355J2 + N. According to the invention it is also conceivable to manufacture the second carrier element 25 from an aluminum material, whereby a large
- Fig. 2 shows a detail of the wheel assembly described in Fig. 1 for a loose-wheel chassis of a low-floor tram in a sectional view.
- a hub 8 is firmly connected.
- a stub axle 2 is firmly connected to a visible in Fig. 1 Portal axis 1.
- the wheel hub 8 is rotatably supported by a tapered roller bearing 35 on the stub axle 2.
- a carrier device 23 comprises a first carrier element 24 and a second carrier element 25.
- Support member 24 via a fourth hexagonal screw 14, a fifth hexagonal screw 15, a sixth hexagonal screw 16 and a visible in Fig. 1 seventh hexagonal screw 17, which are designed as shaft bolts and arranged parallel to a rotation axis 4 of the wheel 3, respectively.
- the first carrier element 24 is centered about a centering lug 41 with respect to the stub axle 2.
- the centering lug 41 is made short due to the arrangement of the first support member 24 in the vicinity of the axis of rotation 4 of the wheel 3 and its small dimensions in the radial direction with respect to the axis of rotation 4 and thus easy and inexpensive to produce.
- the cylindrical second support member 25 is arranged around the first support member 24 and this ummantelnd. This borders with a wheel 3 facing end face to the wheel hub 8 and the tapered roller bearing 35. Between the second support member 25 and the tapered roller bearing 35, a pressure ring 36 is arranged.
- the second carrier element 25 has a first recess 26, in which an annular speed encoder crown wheel 32, which is arranged around the rotational axis 4 of the wheel 3 around, and a speed sensor 31 are provided.
- Speed sensor 31 is parallel to the axis of rotation 4 of the wheel 3.
- the speed sensor 31 is adjacent in the first recess 26 with one of its ends to the Drehieregeber Kronrad 32 and protrudes with its other end out of the second support member 25, i. is shielded from the second support member 25 partially against an environment of the chassis.
- the tachometer crown wheel 32 is between the second
- Carrier element 25, the hub 8 and the tapered roller bearing 35 is arranged, is therefore completely shielded from the surroundings of the chassis.
- the speed encoder crown wheel 32 is connected to the wheel hub 8 and moves with this.
- Carrier element 25 is a grounding contact 33 is arranged and screwed by screw parallel to the axis of rotation 4 of the wheel 3 with the second support member 25.
- ground contact slip ring 34 is completely shielded from the surroundings of the chassis between the second carrier element 25 and the wheel hub 8.
- the second support element 25 is connected via a non-visible feather key, which on a lateral surface of the
- the lateral surface of the second carrier element 25 is arranged, secured against unintentional rotation.
- Carrier element 25 and the stub axle 2 conceivable.
- the first support member 24 is bordered by a shoulder 40 on the front side of the second support member 25 and secures this and the tapered roller bearing 35, the wheel hub 8 and the wheel 3 against unintentional movement in the direction of the axis of rotation 4 of the wheel 3, therefore performs the function of a pressure cap.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50875/2016A AT519147B1 (de) | 2016-09-29 | 2016-09-29 | Rad-Anordnung für ein Schienenfahrzeug |
PCT/EP2017/072984 WO2018059937A1 (de) | 2016-09-29 | 2017-09-13 | Rad-anordnung für ein schienenfahrzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3504097A1 true EP3504097A1 (de) | 2019-07-03 |
EP3504097B1 EP3504097B1 (de) | 2023-07-05 |
Family
ID=59858734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17765438.1A Active EP3504097B1 (de) | 2016-09-29 | 2017-09-13 | Rad-anordnung für ein schienenfahrzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3504097B1 (de) |
AT (1) | AT519147B1 (de) |
WO (1) | WO2018059937A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020143363A1 (zh) * | 2019-01-10 | 2020-07-16 | 中车青岛四方机车车辆股份有限公司 | 低地板车辆、转向架及其轴端结构和摩擦盘 |
AT525890B1 (de) | 2022-06-28 | 2023-09-15 | Siemens Mobility Austria Gmbh | Verfahren und Vorrichtung zur Radgeometrieermittlung und Schienenfahrzeug |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1259373B (de) * | 1965-04-14 | 1968-01-25 | Max Frost | Erdungskontakt zur elektrischen UEberbrueckung der Achslagerung von Schienenfahrzeugen |
DE19654339B4 (de) * | 1996-12-24 | 2004-12-02 | G. Dietrich Gmbh | Erdungskontakteinrichtung |
DE10122185A1 (de) * | 2001-05-08 | 2002-11-14 | Gutehoffnungshuette Radsatz | Losrad-Anordnung für Schienenfahrzeuge |
CN203601289U (zh) * | 2013-12-04 | 2014-05-21 | 南车株洲电力机车有限公司 | 一种低地板轻轨车辆 |
-
2016
- 2016-09-29 AT ATA50875/2016A patent/AT519147B1/de active
-
2017
- 2017-09-13 EP EP17765438.1A patent/EP3504097B1/de active Active
- 2017-09-13 WO PCT/EP2017/072984 patent/WO2018059937A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
AT519147A1 (de) | 2018-04-15 |
WO2018059937A1 (de) | 2018-04-05 |
AT519147B1 (de) | 2021-11-15 |
EP3504097B1 (de) | 2023-07-05 |
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