EP2977289A1 - Dispositif de dissipation d'énergie et véhicule à plusieurs voitures comportant un tel dispositif - Google Patents
Dispositif de dissipation d'énergie et véhicule à plusieurs voitures comportant un tel dispositif Download PDFInfo
- Publication number
- EP2977289A1 EP2977289A1 EP14003502.3A EP14003502A EP2977289A1 EP 2977289 A1 EP2977289 A1 EP 2977289A1 EP 14003502 A EP14003502 A EP 14003502A EP 2977289 A1 EP2977289 A1 EP 2977289A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piece
- car
- dissipating device
- energy dissipating
- cut
- 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
- 238000005520 cutting process Methods 0.000 description 12
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G11/00—Buffers
- B61G11/16—Buffers absorbing shocks by permanent deformation of buffer element
Definitions
- the invention relates to an energy dissipating device suitable to dissipate energy while a first car of a multi-car vehicle moves relative to a second part of the car.
- the invention also relates to a multi-car vehicle having such an energy-dissipating device.
- This energy dissipating device has a first part by way of a tearing tube and a section part by way of a die.
- the tearing tube is arranged to move relative to the die, if a force of a predetermined magnitude is applied to the tearing tube.
- the die has blades that are arranged such that they cut into the inner surface of the tearing tube as the tearing tube moves relative to the die.
- an energy dissipating device suitable to dissipate energy while a first part of a car of a multi-car vehicle moves relative to a second part of the car is known.
- This energy dissipating device has a first part of cylindrical shape that is arranged to move relative to a second part of ring shape, if a force of a predetermined magnitude is applied to the cylindrical part.
- the ring-shaped second part has several knives that are arranged such that they cut into the outer circumferential surface of the cylinder-shaped part as the cylinder-shaped part moves relative to the ring-shaped part.
- the problem to be solved by the invention is to provide an energy dissipating device that can provide better energy dissipation and/or is suitable to be arranged in different locations of a car of a multi-car vehicle.
- the invention is based on the basic concept to provide a second surface on the first part that is separate from the first surface and is arranged in such a manner that the knife cuts into the second surface after having cut the first surface, if the force is continued to be applied to the first part.
- the invention thus provides a sequence of at least two surfaces into which the knife can cut as the force is continued to be applied to the first part.
- the first surface and the second surface can, for example, be separated by a recess.
- This embodiment will lead to a cutting-action, wherein the knife is freed from cutting as it leaves the first surface and just before it starts to cut the second surface. This can have advantages for the cutting process.
- Such a design allows, for example for chips or flakes created during the cutting process to be lost before the knife starts to cut the second surface.
- the level of the predetermined force that needs to be applied to have the first part move relative to the second part can be chosen to reflect the driving conditions in which the energy dissipation should take place. For example it could be desired that the energy dissipation takes place in a crash scenario. In a typical crash scenario in trains a force acting from one car to the next car of the order of magnitude of 400 kN, especially preferred of 800 kN and even more preferred of 1200 kN or even 1500 kN will be considered to be an appropriate force level to start distructive energy dissipation.
- the energy dissipation takes already place at low force levels, for example those force levels that arisen when one car is coupled to another car by way of automatic couplers and the cars have a relative speed just above the typical limit for such coupling actions.
- the first part has at least for a part of its longitudinal extent the shape of a cylinder, preferably of a hollow cylinder.
- geometrical shapes of parts of the first part are feasible, for example rectangular or polygonal shapes (e.g. triangular, pentagonal, etc. cross section) providing the first part with at least for a part of its longitudinal extent with the shape of a cylinder allows for a more simple design of the first part and for the manufacturing process to be facilitated.
- the first part is put together of at least a first piece and a separate second piece that is attached to the first piece, whereby the first surface is arranged on the first piece and the second surface is arranged on the second piece.
- this embodiment allows for the first part to be a more complex structure that is adapted to achieve further purposes, while at the same time obtaining a high level of energy dissipation.
- This design allows the first part to be put together of separate elements, that can possibly be replaced after use.
- This design also allows the first part to be made up of pieces that have different resistance to cutting. The first part could thus be designed with a first piece of a material that is cut more easily by the knife than the material of a second piece.
- a stepped approach of energy dissipation can be realized, where only a little amount of energy is dissipated while cutting the first piece of the first part and a higher level of energy per distance that the first part moves relative to the second part can be realized while cutting the second piece.
- the above mentioned embodiment of the first part being put together of at least a first piece and a separate second piece also allows to implement the invention with devices, whereby the first piece is connected to the second piece by means of a joint.
- a first car and a second car of a multi-car vehicle are often connected to each other by connection devices that have joints to allow the multi-car vehicle to move around a bend. Designs of such connection devices are known, where the joint is arranged between a first joint arm and a second joint arm.
- the invention allows energy to be dissipated by cutting into a surface of the first joint arm and then for the cutting to be continued after the knife has passed the joint by cutting into a surface of the second joint arm. Thus, the amount of energy dissipated can be increased.
- connection devices for multi-car vehicles are known. Designs are known, where the joint is arranged between to joint arms, the respective joint arm being connected to a respective car at its respective free end. These joints are often referred to as articulated joints. Other designs are known that make use of a connection rod and two joints. In such designs, a first joint arm is connected to a first car and is connected via a joint to a connection rod. The connection rod is connected via a second joint to a second joint arm, whereby the second joint arm is connected to the second car. Furthermore, designs are known, where instead of the connection rod described above, two coupler heads each being connected to a coupler rod are provided.
- the invention provides advantages for all of these designs, because the invention is now not limited to simply dissipating energy by cutting into that part of the connection device that ends at the joint, but allows for the energy dissipation to continue once the knife has past the joint as the first part continues to move relative to the second part as the force is continued to be applied to the first part.
- a guide is provided that comes into contact with the second piece while the first part is moved relative to the second part by the application of the force, the guide guiding the second piece of the first part into a predetermined position relative to the second part.
- the performance of the cutting action can be enhanced, if the second piece is aligned into a predetermined position relative to the second part.
- the second piece is aligned by the guide to be in line with the first piece.
- the guide could in a preferred embodiment guide the second piece of the first part into a predetermined position, wherein the longitudinal axis of the second piece has the same orientation or is parallel to the longitudinal axis of the first piece.
- Such guides can be connected to the second part and thus remain stationary, while the first part moves relative to the second part.
- the guides can, for example, be elements protruding from the second part, for example protruding parallel to a longitudinal axis of the first piece of the first part. If the first part is moved relative to the second part and if the second piece is not in the predetermined alignment to the second part, for example tilted out of the predetermined orientation, the guide will come into contact with the second piece and bring the second piece into alignment.
- the second part has a recess, a cut-out or a hole.
- the first part moves at least partially into the recess or at least partially through the cut-out or hole, respectively.
- Providing a recess, a cut-out or a hole provides for good ways of having the first part move relative to the second part in a controlled manner.
- the knife is arranged at the circumference of the recess, the cut-out or the hole such that the knife cuts the first surface and the second surface as the first part moves at least partially into the recess or at least partially through the cut-out or hole respectively.
- the design of the energy dissipating device can be facilitated, if the knife is provided at the circumference of the recess, the cut-out or the hole, because then no additional elements need to be provided to hold the knife.
- the second part has at least two knives. In an even more preferred embodiment, the second part has more than two knives, especially preferred three knives or more than three knives. In a preferred embodiment, the knives are arranged symmetrically around the surfaces of the first part that are to be cut by the knives.
- the first part has a recess and the second part has a guide that engages with the recess, whereby the recess extends for at least a part of the longitudinal extent of the first part. If the first part is moved relative to the second part by the application of the force, the interaction of the guide with the recess will guide the first part to move in a predetermined way relative to the second part.
- the first part can have a guide that interacts with a recess of the second part to obtain the same function.
- the multi-car vehicle according to the invention has an energy dissipating device according to the invention.
- the multi-car vehicle has the energy dissipating device according to the invention as part of a buffer or as part of a connection device that connects a first car of the multi-car vehicle to a second car of the multi-car vehicle.
- the multi-car vehicle according to the invention can be of different designs and in different forms of adaptation for uses.
- the multi-car vehicle for example, can be a railway-bound train (streetcars and subway-trains also being considered as such trains), which can be used for transporting passengers as well as adapted for transporting goods.
- Further possible types of the multi-car vehicle according to the invention can be magnetic railway trains or can be busses (road busses as well as busses traveling on fixed tracks).
- a car of a multi-car vehicle can be a self-supporting car, whereby the car has sufficient wheels that are placed at sufficient locations such that the car can stand by itself without being supported by other cars, for example a three-wheeled car, a four-wheeled car or a car with even more wheels placed at suitable locations.
- a car of a multi-car vehicle can also be of the non-self-supporting type, whereby the car has no wheels or only wheels provided in such number or arranged at such a place that the car cannot stand by itself but is vertically supported by at least one neighbouring car.
- the individual cars of the vehicle are connected to one another by means of a connection device.
- the connection device can be provided for different types of purposes. In multi-car vehicles where only one or only several of the total of cars is driven, the connection devices are provided so that the driven car can drive a non-driven car and thus ensure that the complete vehicle travels with the same speed.
- Connection devices are also distinguished between those connecting devices that allow for easy decoupling (uncoupling) of the cars, whereby easy decoupling is understood to be accomplished within a couple of minutes or for what is called “semi-permanent" coupling of the cars, for which decoupling of the cars takes efforts and usually involves the vehicle to have been transported to a specific workshop.
- Trains for example, can have coupler-heads as part of their connection devices. These coupler-heads can, for example be so called “automatic couplers” that allow decoupling within minutes, even within seconds.
- the parts of the connection device shown in the Fig. 1 to 3 include a first part 1 and a second part 2.
- the second part 2 comprises four knives 3 that are arranged such that they cut into a first surface 4 of the first part 1, if the first part 1 is made to move relative to the second part 2 by application of a force of a predetermined magnitude that is applied to the first part 1 to act along its longitudinal axis.
- the first part 1 has a second surface 5 that is separate from the first surface 4 and is arranged in such a manner that the knives 3 cut into the second surface 5 after having cut the first surface 4, if the force is continued to be applied to the first part 1.
- the first part 1 is put together of several pieces.
- a first piece 6 that at least for a part of its longitudinal extent has the shape of a hollow cylinder is provided.
- the first surface is the peripheral surface of the first piece 6.
- the second piece 7 for at least a part of its longitudinal extent also has the shape of a hollow cylinder.
- the second surface 5 is the peripheral surface of the second piece 7.
- the first piece 6 and the second piece 7 are separate pieces that are attached to one another.
- the second piece 7 is attached to the first piece 6 by means of a joint 8.
- the second part 2 has a hole, whereby the first part 1 moves at least partially through this hole.
- the knives 3 are arranged at the circumference of the hole such that the knives cut the first surface 4 and the second surface 5 as the first part 1 moves at least partially through the hole.
- the second part 2 is a plate that can either be connected directly to a car of a multi-car vehicle, for example to the underframe of such a car. Alternatively, further elements can be arranged between the second part 2 and the car.
- the end of the first part 1 that is opposite to the second part 2 can be provided with a plate that is directly directed to a second car of a multi-car vehicle, for example the underframe of such a car.
- the energy dissipating device would function as an articulated joint between two cars of a multi-car vehicle.
- the connection would be of the semi-permanent nature and could only be disconnected by either disconnecting the energy dissipating device from the respective car or by dismantling the joint 8.
- the second piece 7 of the energy dissipating device can function as a connection rod with a substantial longitudinal extent.
- a further joint would be provided at the free end of the second piece 7 of the first part 1 and this further joint would then be connected to the next car of the multi-car vehicle.
- the second piece 7 of the first part 1 can function as a coupler rod and a coupler, for example an automatic coupler could be arranged at the free end of the second piece 7 of the first part 1.
- a connection that connects the first part 1 to the second part 2 will be overcome and the force will start to move the first part 1 relative to the second part 2, namely will at first push the first piece 6 of the first part 1 through the hole in the second part 2.
- the knives 3 will cut the peripheral surface (the first surface 4) of the first piece 1. This cutting action will dissipate energy.
- connection between the first part 1 and the second part 2 that is overcome upon the application of a force of a predetermined magnitude to the first part 1 can either be by way of the holding force that the knives 3 can provide, if they are cut radially inwards into the uncut first surface 4 of the first piece 1 during assembly of the energy dissipating device. If the knives 3 are moved radially inwards into the first surface 4 and cut into this first surface 4 in a radial direction, they will be able to connect the first piece 6 of the first part 1 to the second part 2 in a manner that can transmit pulling forces as well as pushing forces that are below the predetermined magnitude. In a preferred embodiment, the connection of the first part 1 to the second part 2 is, however, provided by separate means.
- the first piece 6 can have a plate that is arranged behind the first part 2 and that is connected to the first part 2 by shear-off bolts.
- the shear-off bolts Upon the application of a pushing force along the longitudinal axis of the first part 1 that in the Fig. 1 would be directed from right to left, the shear-off bolts would shear off and set the first part 1 free to travel relative to the second part 2 upon continuous application of such a force.
- the knives 3 would cut into the peripheral surface of the first piece 6 and then into the peripheral surface of the second piece 7.
- first part 1 to the second part 2
- second part 2 Other means of connecting the first part 1 to the second part 2 are also feasible, for example welding, glueing or other shear-off elements, each of these alternatives being designed in such a manner that they set the first part 1 free to travel relative to the second part 2 upon the application of a force of a predetermined magnitude.
- guides (not shown in the Fig.) can be provided attached to the second part 2 and pointing parallel to the longitudinal axis of the first part 1. Because the second piece 7 is connected to the first piece 6 by way of the joint 8, it is possible that at the time when the first part 1 moves relative to the second part 2 for the purpose of having the knives cut the first surface 4 and the second surface 5 that the second piece 7 is not in alignment with the first piece 6, but has pivoted about the joint 8 out of the position shown in the Fig. 1 to 3 .
- guides attached to the second part 2 that point along the longitudinal axis of the first part 1 as shown in the driving condition shown in Fig. 1 to 3 can help to align the second piece 7 with the first piece 6.
- Such guides could, for example be bar-like elements that are arranged around the first piece 6.
- bar-type elements would have slanted surfaces at their free ends that can assist in guiding the second piece 7 back into the alignment position that is shown in the Fig. 1 to 3 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14003502.3A EP2977289B1 (fr) | 2014-07-23 | 2014-10-13 | Dispositif de dissipation d'énergie et véhicule à plusieurs voitures comportant un tel dispositif |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14002551 | 2014-07-23 | ||
EP14003502.3A EP2977289B1 (fr) | 2014-07-23 | 2014-10-13 | Dispositif de dissipation d'énergie et véhicule à plusieurs voitures comportant un tel dispositif |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2977289A1 true EP2977289A1 (fr) | 2016-01-27 |
EP2977289B1 EP2977289B1 (fr) | 2017-05-31 |
Family
ID=51225243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14003502.3A Active EP2977289B1 (fr) | 2014-07-23 | 2014-10-13 | Dispositif de dissipation d'énergie et véhicule à plusieurs voitures comportant un tel dispositif |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2977289B1 (fr) |
PL (1) | PL2977289T3 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018215493A1 (fr) | 2017-05-22 | 2018-11-29 | Axtone Spólka Akcyjna | Dispositif de dissipation d'énergie de collisions entre wagons |
DE102018113349A1 (de) * | 2018-06-05 | 2019-12-05 | Bombardier Transportation Gmbh | Drehgelenk für ein Drehgestell eines Schienenfahrzeugs |
CN110539773A (zh) * | 2018-06-25 | 2019-12-06 | 中车长春轨道客车股份有限公司 | 一种碰撞界面吸能装置及轨道列车 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU187656U1 (ru) * | 2018-11-23 | 2019-03-14 | Общество с ограниченной ответственностью "Алтайский сталелитейный завод" | Пластина подвижная поглощающего аппарата автосцепного устройства железнодорожных транспортных средств |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009072843A2 (fr) | 2007-12-06 | 2009-06-11 | Korea Railroad Research Institute | Tampon tubulaire pour véhicules ferroviaires |
PL202114B1 (pl) | 2003-12-01 | 2009-06-30 | Axtone Spo & Lstrok Ka Akcyjna | Urządzenie pochłaniające energię uderzeń |
EP2554452A1 (fr) * | 2011-08-01 | 2013-02-06 | Ego International B.V. | Dispositif de liaison adapté pour relier un premier châssis et un deuxième châssis d'un véhicule monté sur rails |
US20130270210A1 (en) * | 2010-11-16 | 2013-10-17 | Axtone Spolka Z Ograniczona Odpowiedzialnoscia | Coupler assembly for coupling railway wagons |
-
2014
- 2014-10-13 PL PL14003502T patent/PL2977289T3/pl unknown
- 2014-10-13 EP EP14003502.3A patent/EP2977289B1/fr active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL202114B1 (pl) | 2003-12-01 | 2009-06-30 | Axtone Spo & Lstrok Ka Akcyjna | Urządzenie pochłaniające energię uderzeń |
WO2009072843A2 (fr) | 2007-12-06 | 2009-06-11 | Korea Railroad Research Institute | Tampon tubulaire pour véhicules ferroviaires |
US20130270210A1 (en) * | 2010-11-16 | 2013-10-17 | Axtone Spolka Z Ograniczona Odpowiedzialnoscia | Coupler assembly for coupling railway wagons |
EP2554452A1 (fr) * | 2011-08-01 | 2013-02-06 | Ego International B.V. | Dispositif de liaison adapté pour relier un premier châssis et un deuxième châssis d'un véhicule monté sur rails |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018215493A1 (fr) | 2017-05-22 | 2018-11-29 | Axtone Spólka Akcyjna | Dispositif de dissipation d'énergie de collisions entre wagons |
CN110891843A (zh) * | 2017-05-22 | 2020-03-17 | 艾克斯通股份公司 | 使轨道车辆碰撞能量耗散的装置 |
US11230304B2 (en) * | 2017-05-22 | 2022-01-25 | Axtone Spolka Akcyjna | Device dissipating energy of rail car collisions |
DE102018113349A1 (de) * | 2018-06-05 | 2019-12-05 | Bombardier Transportation Gmbh | Drehgelenk für ein Drehgestell eines Schienenfahrzeugs |
CN110539773A (zh) * | 2018-06-25 | 2019-12-06 | 中车长春轨道客车股份有限公司 | 一种碰撞界面吸能装置及轨道列车 |
Also Published As
Publication number | Publication date |
---|---|
PL2977289T3 (pl) | 2017-09-29 |
EP2977289B1 (fr) | 2017-05-31 |
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