EP1957337A1 - Anordnung zum schutz gegen steinschlag für spurgebundene landfahrzeuge - Google Patents
Anordnung zum schutz gegen steinschlag für spurgebundene landfahrzeugeInfo
- Publication number
- EP1957337A1 EP1957337A1 EP06829387A EP06829387A EP1957337A1 EP 1957337 A1 EP1957337 A1 EP 1957337A1 EP 06829387 A EP06829387 A EP 06829387A EP 06829387 A EP06829387 A EP 06829387A EP 1957337 A1 EP1957337 A1 EP 1957337A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shield
- elastic
- wires
- arrangement
- ropes
- 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
- 239000004575 stone Substances 0.000 title claims abstract description 28
- 230000003116 impacting effect Effects 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000005489 elastic deformation Effects 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 description 10
- 239000002245 particle Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013383 initial experiment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000011664 signaling Effects 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
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/06—Nets, catchers, or the like for catching obstacles or removing them from the track
Definitions
- the invention relates to an arrangement for protecting track-bound land vehicles from stone chips.
- the invention relates to the protection of rail vehicles in the high-speed range, at speeds above 250 km / h.
- One way of protecting against stone chipping is to arrange massive sheet metal aprons in front of the objects to be protected, whereby the surfaces of the aprons are oriented as far as possible in such a way that striking stones hit obliquely to the normal of the operating surface and are deflected in directions that are appropriate for other components of the Rail vehicle are harmless.
- a disadvantage of such protective devices is the high weight which results from the high strength requirements which result from the high kinetic energy of the trapped particles.
- train driving witness, but also drawn wagons should be suitable for both directions of travel and therefore protective devices must be arranged on both sides of the objects to be protected.
- the elements of the aprons are damaged in the course of time and then either have to be replaced or only fulfill their protective function to a limited extent. The latter can even result in the protective device itself becoming a hazard.
- An essential idea of the present invention is to make the protective arrangement elastic at least in some areas. If a stone or another object hits the protective device or a part of the protective device, the impact leads to an elastic deformation and thus to a reduction in the maximum acting forces compared to a rigid arrangement.
- the occurrence of an elastic deformation does not exclude that (especially with very high impulses of the impinging particles) there is also a plastic deformation of the shield.
- the arrangement have a shield which extends over a surface which acts as a barrier against the falling rocks, a material and / or a structure of the shield being designed to be elastic, so that a stone striking the shield causes an elastic deformation of the shield causes.
- a braid and / or fabric made of wires and / or ropes (e.g. wire rope, which was produced from a plurality of individual wires) can be used as the elastic shield that can be installed in front of an object to be protected.
- Shielding extends, so in this case it is not one of one
- Material formed surface but an imaginary or mathematical surface in space.
- a braid or fabric is particularly easy to implement in relation to the resistance achieved.
- a fabric is usually itself elastically deformable. This applies in any case if (as is the case with a preferred embodiment) the wires and / or ropes can be elastically displaced at least in places at least in places in the event of the impacts to be expected.
- a particularly preferred embodiment of a shield that can be used for the arrangement according to the invention is known from CH 692 921 A5.
- the preferred embodiment is described in the cited document with reference to FIG. 1, but the holding of the meshes of the wire mesh on the edge of the wire mesh is preferably carried out differently according to the invention. This will be discussed later.
- h Full reference is made to the description of CH 692 921 A5 with regard to the way in which a wire mesh is formed from the various wires, the nominal strength of the wires and the material of the wires.
- the wires can also be pre-bent in a helical shape during the manufacture of the wire mesh and then intertwined with one another, so that a regular wire mesh with approximately square meshes is produced.
- the wires are preferably solid wires, which in turn do not consist of several individual wires.
- the wires are also preferably made of high-strength steel and are used, for example, in other applications for the production of wire ropes.
- wires are used which have a nominal strength between 1000 and 2000 N / mm 2 according to DIN standard 2078.
- the nominal strength is preferably more than 1200 N / mm 2 , particularly preferably more than 1600 N / mm 2 .
- spring steel wires according to DIN standard 17223 can also be used.
- the wire thickness is preferably at least 3 mm, in particular at least 4 mm. The thickness depends on the selected material and the desired tensile strength. If speeds of the track-bound vehicle of up to 350 km / h are expected, the thickness is, for example, 4 mm with a tensile strength of 1800 N / mm 2 .
- Wire mesh can also assume different values due to the angle formed by the formation of loops at the mesh corners, by which the course of a wire changes in the plane of the mesh. For example, in a preferred embodiment, it is approximately 150 °, so that an internal angle of the mesh of 30 ° is formed.
- the individual wires extend in their course before and after a loop formed with a neighboring wire in different planes, namely a first plane and a second plane, which run parallel to one another.
- the levels are spaced apart.
- At least one elastic element (in particular at least one one-piece element made of elastomeric material) is used for the elastic support.
- the particle transmits at least part of its momentum to the shield.
- the shielding, or at least part of it executes a movement in which the elastic element is subjected to pressure and therefore deforms elastically until a maximum deformation of ZL has been reached.
- Due to the elasticity, a countermovement (movement with the opposite direction of movement) is usually used (unless another impact has occurred in the meantime or other external forces act) in order to reverse the elastic deformation. Internal friction of the elastic element leads to a damping of this vibration.
- the elastic element is designed and arranged in such a way that even after a reversal of the direction of movement and after returning to the rest position which originally existed (before the action of the stone) (at this moment a first oscillation half cycle has ended) subsequent vibration half cycle is elastically deformed and therefore further dampens the vibration.
- the same elastic element dampens the vibration during the entire vibration cycle. It is particularly preferred that part of the elastic element is subjected to pressure in each oscillation half cycle, while another part of the elastic element is relieved and / or subjected to tension.
- two elastic elements can be used for the elastic support, whereby the first elastic element (if necessary in addition to a prestress) is first subjected to pressure and elastically deformed when the stone strikes, and after the maximum deformation amplitude has been reached, the first is relieved elastic element takes place. After the point of equilibrium that usually exists before the stone hits, the second elastic element is subjected to pressure until the maximum deformation amplitude is reached again, etc.
- the elastic element or the two elastic elements can each have, for example, a through opening, through which an elongated element, for example a rod, a sleeve and / or a threaded rod, extends.
- a support (in the direction of movement) of the elastic element is supported
- Fastening element by means of which the elastic element is fastened to the shield or to another object (holding base) which holds the shield.
- the fastening element is located between the two elastic elements and can also be provided with a through opening.
- the fastening element is connected (directly or indirectly, e.g. via a frame) to the shield.
- the fastening element is connected to the object to be protected or the other object (support base) to 1 which supports the assembly.
- the fastening element can be connected to the shield and the elongated element to the object.
- a plurality of such supports are preferably provided, which can be supported on the same or on different objects in order to support the shielding.
- the free end of the elongated element is e.g. B. provided with a closing element, on which the elastic element (first case) or one of the two elastic elements (second case) is supported in the corresponding oscillation half cycle, in which a region of the elastic element lying against the closing element is loaded under pressure.
- the end element is preferably attached in such a way that the two elastic elements are also under pressure in the neutral position, that is to say are prestressed.
- the support can have the following:
- At least one elastic element which has a recess through which the elongated element extends, a fastening element over which a central region of the elastic element or two of the elastic elements on the holding base (case a) or on the shield to be supported (case b) supports / support,
- a terminating element which is arranged in the region of a second, free end of the elongated element, on which there is a free end of the elastic element or a free end of at least one of the elastic elements.
- the edges of the mesh are held by a (preferably rigid) frame.
- the braid can be a braid with a square outer circumference.
- the frame is then a square frame, with two sections (webs) of the frame abutting each other at the corners and being firmly connected to one another.
- At least one section of the frame preferably all four sections or frame webs in the example mentioned above, have a two-part structure, a lower part and an upper part being provided.
- the terms below and above are used without restriction of generality and do not mean that the top part must actually be at the top in practice.
- the ends and / or bends of the wires or ropes, which are located in the region of the respective web, are arranged between the upper part and the lower part and the upper part and the lower part are fastened to one another.
- the wires or ropes can be clamped between the upper part and the lower part or can move freely.
- the wires and / or ropes are freely movable, with the exception of the mesh corners between the upper part and lower part, at which they are bent or intertwined.
- the upper part and / or lower part can have cutouts which are shaped in accordance with the type of braid.
- elongated elements e.g. B. pins or screws.
- the upper part and the lower part are preferably connected to one another and fastened to one another using the pins or screws.
- the scope of the invention also includes that a wire mesh, known per se, as known, for example, from CH 692 921 A5, is used for protection against stone chipping in track-bound land vehicles.
- a wire mesh known per se, as known, for example, from CH 692 921 A5
- at least one of the wire meshes is attached to the vehicle.
- a shield for example in one of the configurations described above, is connected to the vehicle. The shield is then e.g. B. in the area of the underbody of a rail vehicle, or z. B. attached to the bogie or to attached objects and equipment.
- the shielding according to the invention can be used in any configuration (preferably with the elastic support) to protect stationary objects from falling rocks.
- the surroundings of railroad tracks can be protected from particles that are swirled up by passing rail vehicles, in particular by mechanical action and / or due to hydrodynamic effects.
- Figure 1 shows an arrangement with two shields, the z. B. on an assembly housing
- FIG. 2 the rear of one of the shields according to FIG. 1 with four supports attached to the shield
- FIG. 3 shows a cross section of a schematic illustration of one of the two supports shown above in FIG. 2,
- FIG. 4 shows a cross section through the frame of one of the two shields shown in FIG. 1
- FIG. 5 shows a schematic side view of part of the frame shown in FIG. 4,
- FIG. 6 shows a longitudinal section through part of a frame for a shield.
- FIG. 7 is a view of a loop which is connected by two different wires.
- Figure 8 is a view of a wire mesh, for example one of the two i
- Figure 9 is a schematic representation of a cross section (the image plane is a
- Longitudinal axis of an elastic element 43 contains) an alternative embodiment of a support.
- FIG. 3 The section through one of the two upper supports also shows the frame 3, namely its upper web 3-1, which is made in two parts in the exemplary embodiment.
- the two-part version will be discussed in more detail.
- the web 3-1 is connected to the plate-shaped element 32 (for example a steel plate) which has a central bore (for example a threaded bore 41 into which a threaded rod 42 is screwed and is secured against unintentional unscrewing) having.
- the threaded rod 42 (not shown in FIG. 3, but see alternative embodiment in FIG. 9) defines a longitudinal axis of the support and an elastic element 43, along which the fastening element 30 is limited by elastic properties of the elastic element 43
- the fastening element 30 has a through hole through which the elastic element 43 extends. At least one further fastening element is introduced into the elastic element 43, the regions of which shown at the top and bottom in FIG. 3 are designated by the reference numerals 101, 102. In the present case, the regions 101, 102 belong to an integral, ring-shaped and / or fla inch-like element which is vulcanized into the elastic element 43.
- a sleeve 40 (in the exemplary embodiment a hollow cylinder made of metal) extends in the longitudinal direction of the bore (which is equal to the longitudinal direction of the elastic element 43) and extends at a free end of the elastic element 43 with a plate-shaped end element 46 inside the through bore of the elastic element 43 connected is.
- the elastic element 43 has a (preferably cylindrical) base region 44, which tapers in each case to the closer end of the threaded rod 42.
- the elastic elements can also have a differently shaped outer contour.
- the cylindrical section 44 forms on one side (on the right in FIG. 3) a shoulder which springs back in the direction of the longitudinal axis of the through-hole (the cross-sectional shape of the outer contour being depicted in practice).
- the two elastic elements 43 preferably have a cylindrical base region 44, which tapers toward the closer end of the threaded rod 42.
- the elastic elements can also have a differently shaped outer contour.
- the cylindrical section 44 forms an in Figure 4 shows a preferred embodiment of a frame for a wire mesh.
- the frame shown can be one of the frames 3a,
- the frame 51 shown in Figure 4 is made in two parts. The lower part can be seen, i. H. the part to which the plate-shaped elements 32a to 32d, which are also indicated, are connected. The threaded bores 41 within the plate-shaped elements 32 can also be seen. As indicated by two parallel oblique lines, the frame 51 is not shown in its entire size.
- the individual webs of the frame 51 are metal profile elements and are designated by the reference numbers 3-1 (in the figure above), 3-2 (right), 3-3 (below) and 3-4 (left). At the corners of the frame 51, the webs are firmly connected to each other. In addition, the webs have recesses or recesses which are shaped differently depending on the web.
- the recesses in the upper and in the lower web run in a zigzag pattern over the entire longitudinal extent of the two webs in accordance with the structure of the fabric to be held by the frame 51.
- the recesses are designated by the reference numerals 53a and 53b.
- the zigzag-shaped recesses 53a, 53b have both openings 54 to the inside of the frame 51 and openings 55 to the outside of the frame, although the openings 55 to the outside do not necessarily have to be present.
- the openings 54 must be present on the inside in order to allow the entry or exit of the wires or ropes of the braid. If, for example, the braid shown in FIG. 8 is held by the frame 51, the edge 92 of the braid 91 shown on the left in FIG.
- the recesses 53b in the lower web 3-3 are also trapezoidal.
- FIG. 4 Since the illustration in FIG. 4 is a figure in the manner of a construction drawing, a large number of center lines can be seen, each intersecting at the center of the bores.
- a large number of center lines can be seen, each intersecting at the center of the bores.
- each of the trapezoidal recesses 53c, 53d there is such a bore, which serves to receive an elongate element (not shown) and which in some cases is identified by reference number 57.
- These holes 57 or the elongate elements arranged therein, which extend perpendicular to the plane of the drawing in FIG. 4, are when the braid is clamped only a complete pair of bores 75a, 75b arranged side by side is shown in FIG. 6, since it is only a partial illustration.
- the preferred embodiment of a wire mesh according to the present invention is not only a two-dimensional structure, but also has a thickness transversely to the mesh level that is greater than the thickness of the individual wires of the mesh.
- the braid plane is understood to mean the plane that is the image plane of FIG. 8, which therefore runs through all the loops in the embodiment shown in FIG.
- FIG. 7 shows two wires 81, 82 which form a loop 83.
- the loop 83 is in j
- wires 81, 82 each extend approximately halfway around the other wire.
- the first wire 81 extends from the rear right in its further course up to the loop 83, there to the front down and in its further course to the right front.
- the second wire 82 extends from the upper left front to the loop ', there to the rear below and further to the left rear.
- Reference numbers 81 and 82 indicate, for example, the wires shown in FIG. 7.
- the shielding against stone chips described with the aid of the figures can significantly reduce the forces which, in the worst case, act on the object holding the shield.
- the worst case occurs when the stone hits the frame. Due to the elastic design of the support, the reduction is up to 90 percent compared to the direct impact of a stone with the same impulse on a rigid object. When the stone hits the braid, the forces are significantly more reduced, depending on the location of the impact, and are usually also distributed over several supports.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Protection Of Plants (AREA)
- Vibration Dampers (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005059377 | 2005-12-09 | ||
| DE102006004814A DE102006004814A1 (de) | 2005-12-09 | 2006-01-26 | Anordnung zum Schutz gegen Steinschlag für spurgebundene Landfahrzeuge |
| PCT/EP2006/011768 WO2007065682A1 (de) | 2005-12-09 | 2006-12-07 | Anordnung zum schutz gegen steinschlag für spurgebundene landfahrzeuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1957337A1 true EP1957337A1 (de) | 2008-08-20 |
| EP1957337B1 EP1957337B1 (de) | 2009-04-15 |
Family
ID=37865769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06829387A Not-in-force EP1957337B1 (de) | 2005-12-09 | 2006-12-07 | Anordnung zum schutz gegen steinschlag für spurgebundene landfahrzeuge |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1957337B1 (de) |
| CN (1) | CN101326088B (de) |
| AT (1) | ATE428614T1 (de) |
| DE (2) | DE102006004814A1 (de) |
| ES (1) | ES2323388T3 (de) |
| WO (1) | WO2007065682A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010005250B4 (de) | 2010-01-20 | 2013-03-21 | Db Fernverkehr Ag | Schienenfahrzeug für einen Fahrbetrieb auf Gleisanlagen mit Schotter-Oberbau |
| EP2517944B1 (de) * | 2010-03-23 | 2017-05-03 | Bombardier Transportation GmbH | Aufprallschutz für ein fahrwerk eines schienenfahrzeugs |
| DE202012001902U1 (de) | 2012-02-24 | 2012-04-17 | Hübner GmbH | Balg eines Übergangs zwischen zwei gelenkig miteinander verbundenen Fahrzeugen |
| EP2910449B1 (de) | 2014-02-19 | 2020-05-06 | Bombardier Transportation GmbH | Aufprallschutz für das Fahrgestell eines Schienenfahrzeugs |
| CN104691571B (zh) * | 2015-02-27 | 2018-05-11 | 中车青岛四方机车车辆股份有限公司 | 轨道列车及其车底防护装置 |
| EP3109124B1 (de) * | 2015-06-23 | 2019-05-08 | ALSTOM Transport Technologies | Eisenbahndrehgestell mit einer winterfesten verrohrungs- und verdrahtungsschlagschutzabschirmung |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR11301E (fr) * | 1908-04-10 | 1910-01-19 | Eugene Lecomte | Chasse-corps |
| DE486577C (de) * | 1929-01-06 | 1929-11-23 | Albert Addicks | Schutzvorrichtung fuer Fahrzeuge, insbesondere fuer Kraftfahrzeuge |
| DE1063630B (de) * | 1955-10-18 | 1959-08-20 | Raoul Joern Dipl Ing | Zweiachsiges Drehgestell, insbesondere fuer Schienenfahrzeuge |
| DE1605830C3 (de) * | 1968-02-13 | 1978-06-08 | Kurt Huebner Kg, 3500 Kassel | Einrichtung an Schienenfahrzeugen zum Wegräumen von Hindernissen |
| DE2558676C3 (de) * | 1975-12-24 | 1980-08-28 | Wegmann & Co, 3500 Kassel | Lärmschutz an Schienenfahrzeugen |
| DE3039768C2 (de) * | 1980-10-22 | 1986-08-07 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Hängende Abdeckhaube für an der Unterseite von Schienenfahrzeugen angeordnete Bauelemente |
| DE3926130A1 (de) * | 1989-08-08 | 1991-02-14 | Hans Renner | Fahrzeug mit einem verbrennungskraftmotor |
| US5799930A (en) * | 1997-01-30 | 1998-09-01 | Means Industries, Inc. | Body mount assembly |
| CH692921A5 (de) * | 1998-02-25 | 2002-12-13 | Fatzer Ag | Drahtgeflecht vorzugsweise als Steinschlagschutz oder für die Sicherung einer Erdoberflächenschicht. |
| FR2801554B1 (fr) * | 1999-11-30 | 2002-02-01 | Anf Ind | Dispositif de deformation controlee sous efforts ou d'absorption d'energie par deformation, notamment deflecteur d'obstacles pour vehicule ferroviaire |
| US6910671B1 (en) * | 2000-09-06 | 2005-06-28 | Illinois Tool Works Inc. | Shock mount assembly with polymeric thimble tube |
| DE10300647C5 (de) * | 2003-01-09 | 2010-04-08 | Carl Freudenberg Kg | Entkopplungselement |
| DE102004041090A1 (de) * | 2004-08-24 | 2006-03-02 | Siemens Ag | Schienenfahrzeug für einen Fahrbetrieb auf Schienenanlagen mit Schotter-Oberbau |
-
2006
- 2006-01-26 DE DE102006004814A patent/DE102006004814A1/de not_active Withdrawn
- 2006-12-07 EP EP06829387A patent/EP1957337B1/de not_active Not-in-force
- 2006-12-07 AT AT06829387T patent/ATE428614T1/de not_active IP Right Cessation
- 2006-12-07 ES ES06829387T patent/ES2323388T3/es active Active
- 2006-12-07 WO PCT/EP2006/011768 patent/WO2007065682A1/de not_active Ceased
- 2006-12-07 CN CN2006800463331A patent/CN101326088B/zh not_active Expired - Fee Related
- 2006-12-07 DE DE502006003498T patent/DE502006003498D1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007065682A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2323388T3 (es) | 2009-07-14 |
| WO2007065682A1 (de) | 2007-06-14 |
| CN101326088A (zh) | 2008-12-17 |
| DE102006004814A1 (de) | 2007-06-14 |
| DE502006003498D1 (de) | 2009-05-28 |
| ATE428614T1 (de) | 2009-05-15 |
| CN101326088B (zh) | 2011-01-12 |
| EP1957337B1 (de) | 2009-04-15 |
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