EP1436186A1 - Bogie a demontage-montage simplifie des essieux - Google Patents
Bogie a demontage-montage simplifie des essieuxInfo
- Publication number
- EP1436186A1 EP1436186A1 EP02772685A EP02772685A EP1436186A1 EP 1436186 A1 EP1436186 A1 EP 1436186A1 EP 02772685 A EP02772685 A EP 02772685A EP 02772685 A EP02772685 A EP 02772685A EP 1436186 A1 EP1436186 A1 EP 1436186A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axle
- axles
- bogie
- fixed
- chassis
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000008878 coupling Effects 0.000 claims abstract description 23
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 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
- B61F5/00—Constructional 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
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
Definitions
- the present invention relates to a bogie intended to be mounted on a rail vehicle and comprising a chassis and at least two axles mounted by means of axle boxes and suspension elements on the chassis.
- Bogies of this type are well known and widely used in urban and rail transport. They can only be carriers or motorized. However, during maintenance work, such as reprofiling the wheels and / or changing the wheel treads, the disassembly-assembly time of the axles is considerable since it is necessary to disassemble all or part of the primary suspensions and engine groups, or even to dismantle the bogie from the vehicle body.
- the object of the present invention is to remedy these drawbacks and it is characterized for this purpose by the fact that the bogie comprises means for dismantling-mounting the axles in a radial direction without dismantling the suspension elements, these dismantling-mounting means comprising axle boxes in at least two parts, at least one part of which can be separated to open a radial passage to the axle.
- An advantageous variant of a bogie comprises a motorization group fixed to the chassis connected to at least one of the axles by means of a transmission and coupling device and is characterized in that said disassembly-assembly means comprise means to at least partially separate the transmission and coupling device from the following axle an axial direction, the whole being arranged so that said axle can be removed without dismantling the power unit and the transmission and coupling device.
- the axle box comprises an upper part integral with the suspension elements and the chassis and a removable lower part shaped so as to allow a radial passage of the axle after the dismantling of the lower part, said upper part having a shape General in Omega with two side plates in extension on which the suspension elements are supported.
- axles are provided with rolling bearings fixed at their periphery and interposed between the axles and the axle boxes, said lower part being shaped so as to leave a radial passage for the rolling bearing after dismantling the lower part, and so that the axles and the rolling bearings integral with the latter can be removed from said upper part.
- said upper part comprises two side walls between which the lower part fits when they are assembled, the two side plates on which the suspension elements are fixed being arranged on the outside of the two side walls.
- a preferred embodiment is characterized in that the transmission and coupling device comprises a first front gear intended to cooperate with a second front gear of the axle and at least one elastic element allowing axial movement of the first gear front to move it away from the second front gear of the axle so that the axle can be removed from the bogie when said lower part is removed from the axle box.
- a particularly quick and easy disassembly of the axles is thus obtained without any disassembly, even partial, of the transmission and coupling device.
- the transmission and coupling device comprises a gear intended to cooperate with the motorization group and fixed to an external plate provided with elastomer elements and fixed to a hollow tube which is fixed to an internal plate provided with elements made of elastomer and secured to a disc provided with said front gear, the latter being intended to be fixed to the axle by at least one screw accessible from the outside by the hollow tube.
- the transmission and coupling device has a particularly solid construction, while allowing rapid removal and precise and uncomplicated reassembly.
- Figure 1 is a perspective view of this embodiment of the bogie.
- Figures 2a and 2b are sectional views in assembled and partially disassembled positions of a partial axle, an axle box and the transmission and coupling device.
- Figure 3 is an exploded perspective view of an axle box separated into two parts.
- the bogie embodiment illustrated in FIG. 1 is of the carrier and motor type, particularly intended for low-floor trams, but also capable of being used in the context of any rail vehicle.
- the chassis 10 comprises a chassis 10 and two rotating axles 12, one of which is disassembled in FIG. 1 and each carrying two wheels 14.
- This chassis has four longitudinal arms 15 which are each supported by two primary suspensions 16 on boxes axle 17 supported by the rotating axles 12.
- the chassis 10 has a lowered middle portion 18 and therefore a generally U-shaped cross section in which can be accommodated the middle part of a vehicle body on which the bogie is mounted to get a full low floor vehicle.
- the body of the vehicle not shown is supported by the bogie thanks to secondary suspensions 19, for example in the form of four coil springs.
- a motorization group 20 is fixed to the chassis and comprises a motor 21 and a reduction gear 22 connected by a transmission and elastic coupling member 23 to one of the two axles 12.
- the bogie further comprises two disc brakes 24 with calipers 25 fixed to the chassis 10 and cooperating with discs (not shown) integral with the axles 12 and arranged on the latter at the opposite end of the member 23.
- Figures 2a and 2b illustrate the end 30 of the axles 12 in two positions, in the position mounted on the axle box 17 (fig. 2a) and during disassembly-assembly (fig. 2b).
- the wheel 14 is of the phonic type with an elastic member 31.
- a rolling bearing 32 serves as an interface between the axle box 17 and the axle 33 of the axle. It includes a two-part bearing housing 34, fixed on one side thanks to a screw 35 on the axis and having on the other side a sealing labyrinth 36.
- the elastic transmission and coupling member 23 is partially disposed in the housing 37 of the reducer and comprises a toothed crown 38 meshing with the reducer 22.
- This crown is screwed to an external plate 39 having elastomer blocks 40 around its periphery secured to the steel spokes 41.
- the latter are in turn screwed to a hollow tube 42 which is secured to an inner plate 43 comprising steel spokes 44 secured to elastomer blocks 45 fixed to a disc 46.
- the latter is provided with a front gear 47 cooperating in the assembled position (fig. 2a) with a front gear 48 of the axis 33.
- a central bolt 50 which is accessible from the outside by a central channel 51 makes it possible to fix and dismount the member 23 with respect to axis 33.
- the disc 46 is provided with seals 52 making it possible to avoid the introduction of impurities towards the rolling bearing 32.
- the central channel 51 is closed by a removable cover 53 towards the outside.
- This distance 53 is of the order of 3 to 20 mm, advantageously 12 mm, as illustrated in FIG. 2b.
- the axle box 17 is formed by two parts.
- An upper part 60 is constituted by a cast iron part of general shape in Omega comprising two lateral plates 61 in extension with bores 62 for fixing the primary suspensions 16 on both sides of the axle.
- This upper part will remain during the dismantling of the axle secured to the chassis 10 of the bogie and further comprises a semi-circular housing 63 in which the casing 34 of the rolling bearing 32 is applied.
- the lower part 64 fits between two side walls 65 of the upper part 60 and is fixed to the latter by four cap screws 66. In the assembled position, two side walls 67 are in contact with the side walls 65 of the upper part so as to form a homogeneous assembly of great radial strength.
- the lower part 64 is of course also provided with a second semi-circular housing 68 forming a continuity with the other housing 63 of the upper part.
- the bogie comprises means of disassembly-assembly 70 of the axle 12 allowing the quick and easy disassembly of an axle without the need to disassemble the primary suspension 16 and all or part of the groups motorization 20.
- These means 70 comprise, on the one hand axle boxes 17 in two parts allowing the axle to exit downwards and, on the other hand, elastic transmission and coupling members 23 of a particular type arranged so as to allow a gear 47 secured to the transmission and coupling members 23 to be released from a gear 48 secured to the axle 12 by axial displacement of the gear 47.
- the central bolt 50 can be unscrewed and removed. Due to the elasticity of the elastomer blocks 40, 45, the disc 46 can be pulled outward manually or by means of an instrument of distance 53 and the axle 12 can then be moved radially downwards when the lower parts 64 of the axle boxes are removed, the gears 47 and 48 being completely separated from each other. At the other end of the axle, the brake disc is also easily released from the caliper 25 of the disc brake. The disassembly of the axle can therefore be carried out without any difficulty, without multiple ancillary work, and without disassembly work both at the level of the power unit and that of the primary suspensions.
- the advantages of the invention are manifold: - The axles can be removed from the bogie without having to remove the bogie from the body of the rail vehicle; this is valid for both load and drive axles.
- the bogie may be of the non-motorized carrier type.
- the concept of two-part axle boxes then also allows rapid disassembly / assembly of the axles, without the need to provide an axially displaced transmission and coupling member.
- the axle box may also have a completely different shape and construction; it could for example have more than two parts, a first part of the axle box could be articulated to a second fixed part so that it can be moved apart so as to open a radial passage of the axle.
- the displacement of the axle during disassembly may be vertical or oblique.
- the gear between the power units and the axles could be of any other type.
- the organ of transmission and elastic coupling could have a completely different construction, but still allowing easy release of the axle without dismantling the power unit.
- the bogie could have a different number of axles and it could be used for other rail vehicles than trams.
- the axles may also be of the non-rotating type.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH190301 | 2001-10-17 | ||
| CH19032001A CH694693A5 (fr) | 2001-10-17 | 2001-10-17 | Bogie. |
| PCT/IB2002/004090 WO2003033325A1 (fr) | 2001-10-17 | 2002-10-04 | Bogie a demontage-montage simplifie des essieux |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1436186A1 true EP1436186A1 (fr) | 2004-07-14 |
| EP1436186B1 EP1436186B1 (fr) | 2012-06-20 |
| EP1436186B2 EP1436186B2 (fr) | 2017-09-27 |
Family
ID=4566732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02772685.0A Expired - Lifetime EP1436186B2 (fr) | 2001-10-17 | 2002-10-04 | Bogie a demontage-montage simplifie des essieux |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1436186B2 (fr) |
| CH (1) | CH694693A5 (fr) |
| WO (1) | WO2003033325A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335328A (zh) * | 2021-06-04 | 2021-09-03 | 中车眉山车辆有限公司 | 一种内置轴箱悬挂铁路货车焊接转向架 |
| CN113335326A (zh) * | 2021-06-04 | 2021-09-03 | 中车眉山车辆有限公司 | 一种适用于高原、高寒、长大下坡道的多用途平车 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB217362A (en) * | 1923-04-04 | 1924-06-19 | James Hatton | Improvements in or relating to pedestal bearings for the axles of colliery trams andlike vehicles |
| BE513599A (fr) * | 1951-08-25 | |||
| DE1797771U (de) † | 1958-11-04 | 1959-10-15 | Ver Westdeutsche Waggonfab | Lagerung eines radsatzes in einem geteilten achslagergehaeuse. |
| BE809588A (fr) * | 1974-01-10 | 1974-05-02 | Perfectionnements aux dispositifs de suspension de longerons sur boites d'essieu pour wagons de chemin de fer et applications similaires. | |
| SE373323B (sv) * | 1974-01-15 | 1975-02-03 | Skf Ind Trading & Dev | Sadel for axellagring |
| GB1584753A (en) * | 1978-05-31 | 1981-02-18 | Timken Co | Railway axle bearing mountings |
-
2001
- 2001-10-17 CH CH19032001A patent/CH694693A5/fr not_active IP Right Cessation
-
2002
- 2002-10-04 EP EP02772685.0A patent/EP1436186B2/fr not_active Expired - Lifetime
- 2002-10-04 WO PCT/IB2002/004090 patent/WO2003033325A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03033325A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335328A (zh) * | 2021-06-04 | 2021-09-03 | 中车眉山车辆有限公司 | 一种内置轴箱悬挂铁路货车焊接转向架 |
| CN113335326A (zh) * | 2021-06-04 | 2021-09-03 | 中车眉山车辆有限公司 | 一种适用于高原、高寒、长大下坡道的多用途平车 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003033325A1 (fr) | 2003-04-24 |
| EP1436186B2 (fr) | 2017-09-27 |
| CH694693A5 (fr) | 2005-06-15 |
| EP1436186B1 (fr) | 2012-06-20 |
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