FI130684B1 - Motorized underframe for rail vehicles - Google Patents
Motorized underframe for rail vehicles Download PDFInfo
- Publication number
- FI130684B1 FI130684B1 FI20155595A FI20155595A FI130684B1 FI 130684 B1 FI130684 B1 FI 130684B1 FI 20155595 A FI20155595 A FI 20155595A FI 20155595 A FI20155595 A FI 20155595A FI 130684 B1 FI130684 B1 FI 130684B1
- Authority
- FI
- Finland
- Prior art keywords
- underframe
- frame
- axle
- cross
- wheelsets
- Prior art date
Links
- 239000000725 suspension Substances 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 241000206607 Porphyra umbilicalis Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
-
- 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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
-
- 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
- B61F3/00—Types of bogies
- B61F3/02—Types of bogies with more than one axle
-
- 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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/10—Bolster supports or mountings incorporating fluid springs
-
- 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
- B61F5/38—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
- B61F5/386—Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles fluid actuated
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
- Braking Arrangements (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a motorized underframe for rail vehicles, which accommodates elements of the drive, the braking equipment and the suspension and comprises at least two wheelsets mounted on a frame. At least one of the wheelsets comprises an axle, a two-stage, axle-mounted drive mechanism and two wheels pressed onto the axle. Said wheels have two brake disks and two bushing units respectively on the disk unit, each being provided with a temperature sensor. In order to connect the reduction gear to an electric drive motor, a tooth gear coupling having curved teeth is provided. The frame is formed by two longitudinal supports that are bent downwards in their center portion and a cross-member that interconnects the center portions of the longitudinal supports. Fastening elements for the wheelsets are provided on the longitudinal supports and fastening elements for two electric drive motors and for the disk brake equipment for each wheel are provided on the cross-member. The center portion of the cross-member has a throughopening allowing elements of a lemniscate mechanism to be arranged. The underframe further has a yaw damper one end of which is fastened to the frame and the other end of which is connected to a support which is formed independently of the frame and is connected to a body.
Description
Motorized underframe for rail vehicles
The invention relates to a motorized underframe for rail vehicles, in particular for high-speed trains.
The much-increased speeds of rai! vehicles lead to increased demands on the underframe. The weight of the carriage and the effect of the driving and braking forces that develop from each pair of wheels are transferred to the underframe. When the underframe moves on a straight or curved section of track it absorbs forces which act in the verticai and horizontal planes as the wheel pairs interact with the rails.
A motorized underframe is known from US 4353309 A which accommodates elements of the drive, the braking eguipment and the suspension and comprises two wheelsets mounted on a frame comprising two longitudinal supports and two cross-members.
RU 2441785 C2 discloses a motorized underframe of a high-speed rail vehicle which accommodates drive elements, braking equipment and suspension components and has two wheelsets mounted on a frame, with each wheel set comprising an axle, a one-stage, axle-mounted gear and two wheels pressed onto the axle which have two brake disks and two bushing units respectively on the disk part, each being provided with a temperature sensor, wherein in order to connect said reduction & gear to an electric drive motor, a tooth gear coupling having a curved teeth is provided, the frame is formed by two
N longitudinal supports that are kent downwards in their center portion and a cross-member that interconnects the center
I
= portions of the longitudinal supports, wherein fastening 8 elements for the wheelsets are provided on the longitudinal 0 13 supports and fastening elements for two electric drive motors -
S and for the disk brake equipment for each wheel are provided on the cross-member, wherein in a center portion of the cross-
member a through-opening is formed, allowing elements of a lemniscate mechanism to be arranged.
The invention is based on the object of disclosing a motorized underframe which has a high level of smoothness and is suitable for use in rail vehicles.
This object is achieved with the motorized underframe according to independent claim 1.
In a particularly preferred embodiment the information from the temperature sensor of each bushing can be fed to an operating console of the vehicle.
The two-stage design of the reduction gear with the fastening of the wheel pair to its axle and the provision of the reduction gear with fastenings on the underframe and the connection of the reduction gear to the drive motor via the tooth gear coupling with the curved teeth allows the effectiveness of the torque transfer to be significantly increased, the frictions losses to be reduced and the reliability of the fastening of the elements to be increased, and this leads to an improvement in the speed characteristics of the vehicle. It is known, however, that owing to safety- related considerations the increase in the speed of vehicles is only possible on the condition that the effectiveness of
S the brakes is increased. &
N Disk brakes are used to increase the effectiveness of the
N brakes, with each wheel pressed onto the axle having to have z two brake disks on the disk part, whereby the effective area > of the interaction of the braking elements may be enlarged and
D the effectiveness of braking increased accordingly. ©
S By designing the frame of the proposed form with the curved longitudinal supports and with just one cross-member, which has a through-opening, allowing elements of a lemniscate mechanism to be accommodated, the weight of the frame and the resistance of the incident flow during travel may be reduced and the effectiveness of the absorption and transfer of driving and braking forces may be increased. The oresence of additional fastening elements allows the use of the disk brake eguipment. Everything stated above allows the speed mode of the rail vehicle to be improved.
To increase the absorption and transfer of driving and braking forces and to increase comfort, the suspension can have a two- stage design, wherein the second suspension stage can be pneumatic.
The invention will be explained in more detail with reference to drawings, in which:
Fig. 1 shows a basic construction of the proposed underframe in a plan view,
Fig. 2 shows a basic construction of the proposed underframe in a side view.
The underframe described within the scope of the present invention is intended for use on a passenger raii vehicle, wherein, to increase the ease of use and improve the e maintenance conditions, it is assumed that all underframes
S have a modular construction and the main assemblies in
N motorized and non-motorized underframes are, as far as i
N possible, identical in construction. a The motorized underframe 1 of a high-speed rail vehicle is 8 designed in such a way that it accommodates elements of the
O
O drive, the braking equipment and the suspension and comprises =
S two wheelsets 2 mounted on a frame.
Each wheelset comprises an axle, Two bushing units, two wheels, two brake disks on the disk part of each wheel and a two-stage, axle-mounted gear.
The brake disks fastened to the disk part of each wheel enable the area of friction contact during braking to be enlarged, the dynamic and temperature loads of the wheels and the elements of the braking system to be reduced and the braking forces to be used since the braking distance of the rail vehicle is significantly reduced.
Each bushing unit is provided with a temperature sensor whose information can be transferred on-line to the operating console of the rail vehicle, and this allows constant control to oe implemented and the braking and acceleration operations during the journev to be regulated.
A tooth gear coupling with curved teeth is provided for transferring the toraue of the drive motor 5 to the two-stage axial reduction gear. The proposed technical solution allows the effectiveness of the toraue transfer to be increased by the increase in the efficiency of the toothed gear and the reduction in friction losses.
The parts of the two-stage, axle-mounted gear, namely a labyrinth ring, a bearing and a toothed wheel, are pressed or
O ye myos en maan + > 34 rd 4914 me ja ea Tr J Ae deen - < a od Ane < NN
AN placed onto individual receiving points of sald gear in the
O
N ; ; , hot state.
N
TT
1
N The wheels are oressed onto the axle by cold fit. = = a Before the wheels and toothed wheel of the two-stage, axie-
O mounted gear are pressed on, a uniform laver of lubricant is 0
O applied to the surfaces of the locating holes and the -
S receiving points of the axle. The lubricant facilitates the electrical conductivity of the fit and does not reduce the fatigue strength of the axle.
The open surface of the axle or wheels is coated with a base coat and then with a top coat. This coating protects the surfaces against corrosion.
The frame 3 of the motorized underframe 1 is formed by two longitudinal supports and one cross-member. The frame 3 is connected to a railcar body by means of an adapter 12. Each longitudinal support is bent downwards in its center portion.
The cross-member interconnects the center portions of the longitudinal] supports.
The use of a single sufficiently rigid cross-member instead of the two cross-memcers as in the known constructions allows the weight of the frame to be reduced and the distribution of the driving and braking forces that are produced during the rail vehicle's journey to be optimized. The particular outer form of the frame obtained by bending of the longitudinal supports contributes to the optimization cf the distribution cf the driving and braking forces and also leads to a reduction in drag.
Fastening elements, by way of example support arms, for two e wheelsets are provided on the longitudinal supports.
S a Fastening elements, by way of example support arms, for twc
N electric drive motors 5, and fastening elements for clasping
N
T mechanisms of the braking eguipment 4 for each wheel are
I
= provided on the cross-memper .
LO
D The availability of the disk brakes for each wheelset = significantly increases the effectiveness of braking, and this
N ; Ko. Lo : allows the proposed underframe to be used in high-speed rail vehicles.
A through-opening is formed in the center portion of the cross-member, allowing elements of a lemniscate mechanism to be accommodated.
The design of the through-opening firstly allows the rigidity of the frame to be increased and the distribution of the driving and braking forces to be optimized, and secondly, the welght and dimension data of the frame to be reduced, the arrangement of the assemblies and the components of the motorized underframe to be optimized and its fluidic properties to be improved.
Sites for mounting springs of the first suspension stage are provided at the ends of the longitudinal supports.
The vertical secondary suspension occurs by means of pneumatic springs 10. The air blast shock absorption of each underframe comprises two pneumatic spring systems. An additional compressed air reservoir is connected directly to the pneumatic springs and is fastened above the underframe to a traverse of the railcar body. The plane of the second suspension stage is set by a pneumatic spring controller to compensate different loading states.
If the pneumatic springs fail the railcar body can descend onto emergency springs.
N
< To increase the swing resistance, oscillation dampers, namely
N a transverse oscillation damper 11 and a vertical oscillation
N damper & and an inclination stabilization system 9, are = provided. 8 The two-stage design of the suspension allows more effective 0
O absorption and transfer of the driving and braking forces to -
S be achieved and ergonomic properties of the passenger rail vehicles to be improved.
The motorized underframe also has a roll oscillation damper © which is fastened by one end to the frame 3 and is connected by the other end to a bracket 7 that is designed independently of the frame 3 and is connected to the railcar body.
Owing to the different adjustment of the underframe to the weight and the position cf the center of gravity of the individual carriages, and due to different settings of the suspension, the underframes can only be replaced within carriages of one type without changing the setting.
The underframes of the carriages are fitted with sand supply systems 13 and can be fitted in the lead carriage with rail guards that are made from elastomeric materials and are mounted in front of the wheels. The rail guards are arranged as close as possible to the wheels and have the smallest possible distance from the railhead.
The proposed construction and the arrangement of the motorized underframe therefore enable the use thereof in high-speed rail vehicles by simultaneously reducing the weight of the frame, increasing the efficiency of the absorption and transfer of the driving and braking forces, increasing the efficiency of braking, imoroving the ergonomic properties and increasing the smoothness and the resistance to rolling in an increased speed e mode of the rail vehicie.
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Claims (2)
1. A motorized underframe (1) for rail vehicles, which accommodates elements of the drive, the braking equipment (4) and the suspension and comprises at least two wheelsets (2) mounted on a frame (3), wherein at least one of the wheelsets (2) comprises an axle, a two-stage, axle-mounted gear and two wheels pressed onto the axle, which wheels have two brake disks and two bushing units respectively on the disk part, each being provided with a temperature sensor, wherein in order to connect said gear to an electric drive motor (5), a tooth gear coupling having curved teeth is provided, the frame (3) is formed by two longitudinal supports that are bent downwards in their center portion and a cross-member that interconnects the center portions of the longitudinai supports; wherein fastening elements for the wheelsets are provided on the longitudinal supports, fastening elements for two electric drive motors (5) and for the disk brake equipment for each wheel are provided on the cross-member, wherein in the center portion of the cross-member a through-opening is formed, allowing elements of a lemniscate mechanism to be arranged, characterized in that the underframe (1) further has a roll oscillation damper (6), one end of which is fastened to the frame (3) and the other end of which is connected to a e bracket (7) which is formed independently of the frame (3) and N < is connected to a railcar body, and N the suspension has a two-stage design, such that i N sites for mounting springs of the first suspension stage =E are provided at the ends of the longitudinal supports, and a LO the second suspension stage 1s pneumatic in design, O O wherein O S if the pneumatic springs fail the railcar bodv can N descend onto emergency springs accommodated on the underframe
(1).
2. The motorized underframe as claimed in claim 1, characterized in that the information from the temperature sensor of each pushing is fed to an operating console of the vehicle.
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Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2013108990 | 2013-02-28 | ||
| AT500182014 | 2014-02-13 | ||
| PCT/EP2014/053338 WO2014131688A1 (en) | 2013-02-28 | 2014-02-20 | Motorized underframe for rail vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI20155595A FI20155595A (en) | 2015-08-20 |
| FI130684B1 true FI130684B1 (en) | 2024-01-16 |
Family
ID=51427543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20155595A FI130684B1 (en) | 2013-02-28 | 2014-02-20 | Motorized underframe for rail vehicles |
Country Status (4)
| Country | Link |
|---|---|
| FI (1) | FI130684B1 (en) |
| RU (1) | RU2674400C2 (en) |
| UA (1) | UA120588C2 (en) |
| WO (1) | WO2014131688A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3264057B1 (en) * | 2016-06-29 | 2019-06-19 | ALSTOM Transport Technologies | System for measuring a temperature of a moving part, motor bogie comprising such a measurement system and associated railway vehicle |
| LT6694B (en) | 2019-01-31 | 2020-01-27 | Fokin Aleksandr | Universal rail bogie with movement rollers |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3376831A (en) * | 1965-04-27 | 1968-04-09 | Westinghouse Air Brake Co | Hydraulically dampened car bogie |
| JPS63203935A (en) * | 1987-02-18 | 1988-08-23 | Nissin Kogyo Kk | Temperature display device for brake wheel in vehicle brake |
| JPH0383794A (en) * | 1989-08-29 | 1991-04-09 | Toshiba Corp | Elevator brake |
| SU1745586A1 (en) * | 1990-01-05 | 1992-07-07 | Людиновский тепловозостроительный завод | Locomotive thrust-axle traction drive |
| DE10018513A1 (en) * | 2000-04-14 | 2001-10-18 | Knorr Bremse Systeme | Brake disc monitoring device and monitoring method for monitoring the temperature of brake discs |
| EP1564431A1 (en) * | 2004-02-16 | 2005-08-17 | KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH | Temperature sensing device for rotating vehicle components. |
| RU2441785C2 (en) * | 2009-10-08 | 2012-02-10 | Открытое Акционерное Общество "Российские Железные Дороги" | Motor bogie of high-speed railway vehicle |
| CN103097223B (en) * | 2011-04-02 | 2015-10-21 | 南车株洲电力机车有限公司 | Meter gauge bogie |
-
2014
- 2014-02-20 WO PCT/EP2014/053338 patent/WO2014131688A1/en active Application Filing
- 2014-02-20 RU RU2015136595A patent/RU2674400C2/en active
- 2014-02-20 FI FI20155595A patent/FI130684B1/en active
- 2014-02-20 UA UAA201508412A patent/UA120588C2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RU2015136595A (en) | 2017-03-31 |
| RU2674400C2 (en) | 2018-12-07 |
| FI20155595A (en) | 2015-08-20 |
| WO2014131688A1 (en) | 2014-09-04 |
| UA120588C2 (en) | 2020-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC | Transfer of assignment of patent |
Owner name: SIEMENS MOBILITY GMBH Owner name: OFFENE AKTIENGESELLSCHAFT RUSSISCHE EISENBAHNEN |