EP4278041A1 - Herzstück und verfahren zur herstellung von flügelschienen für ein herzstück - Google Patents
Herzstück und verfahren zur herstellung von flügelschienen für ein herzstückInfo
- Publication number
- EP4278041A1 EP4278041A1 EP22706044.9A EP22706044A EP4278041A1 EP 4278041 A1 EP4278041 A1 EP 4278041A1 EP 22706044 A EP22706044 A EP 22706044A EP 4278041 A1 EP4278041 A1 EP 4278041A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frog
- wing rail
- area
- point
- section
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000000463 material Substances 0.000 claims description 38
- 238000003801 milling Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 description 7
- 241000269350 Anura Species 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 210000005181 root of the tongue Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/10—Frogs
- E01B7/14—Frogs with movable parts
Definitions
- the invention relates to a frog, comprising a frog point that is movably arranged between wing rails, with a wheel overrun area running in the area of the frog point,
- a frog as part of a switch enables the transition between crossing tracks.
- An essential property of a spring-loaded frog point is that the running edge is closed so that the wheel is always guided and carried in the relevant area.
- the frog point is applied positively and positively against the respective wing rail by means of locking elements.
- operating rods which are connected to the point of the frog in order to move it and to apply it to one of the wing rails, are based on a point drive.
- the wing rails are usually rolled standard rails from standard profiles such as 60E1. As a result, due to the standard cross-section and the dependency on the rail materials, the constructive possibilities with regard to the design of the wing rails are limited.
- Frogs with resiliently movable frog points can be found, for example, in EP 1 455 016 A2 or EP 1 455 017 A2.
- frogs with a rigid frog point there are also frogs with a rigid frog point, i.e. a frog point that cannot be adjusted to the wing rails.
- the present invention is based on the object of further developing a frog with a movable frog point in such a way that an almost optimal geometric design in the overflow area between the wing rails and the frog point is made possible.
- the comfort when driving through the frog should also be increased, in particular shocks should be avoided or reduced.
- each wing rail has, separately from the frog point, a section that runs at least over the length of the wheel overrun area and is made from a forged block.
- a frog is made available in which a section of the wing rails in the area of the wheel overrun is replaced by a pre-forged steel block that has been machined.
- the wing rails of movable frogs basically consist of a rolled standard profile over their entire length, which results in restrictions with regard to geometric properties.
- the section made from the forged block is connected, in particular by flash butt welding, to sections of control rails which run in front of and behind the section consisting of the forged steel block.
- the separately manufactured section has a length between
- the material used for the section is steel with a tensile strength Rm of 1175 MPa ⁇ Rm ⁇ 1500 MPa, an elongation at break A of 9% ⁇ A ⁇ 12% and a Brinell hardness HBW of 350 HB ⁇ HBW ⁇ 500 HB. Chrombainitic steel is mentioned as an example.
- a forged block which can also be referred to as a slab
- the wing rail section is produced by machining
- critical internal stresses that occur when using standard rails due to bending or buckling are avoided.
- the frog tip itself can also consist of a material with the aforementioned material characteristics, in particular it can also be a forged component, the overflow area has a high level of resistance, with the result that wear is low.
- the mass of the section ie the wing rail block
- the cross-sections can be selected in such a way that if, for example, openings such as bores are to be provided in order to pass elements such as locking rods and tester rods through them to adjust the crossing point, a weakening does not occur to the extent that that - as in the prior art - additional measures must be taken to achieve the required strength, as is the case with control rails, in the webs holes for adjusting rods are introduced. For example, the edge of the opening is strengthened.
- the invention is therefore also characterized in that it has a rail head, a rail foot and a section of a through-opening for a rod element, such as a locking bar or tester bar, which has a web extending between these, the web of the wing rail section being thick at least in the area of the through-opening D with D>30 mm, in particular D>40 mm, particularly preferably 40 mm ⁇ D ⁇ 60 mm, very particularly preferably 45 mm ⁇ D ⁇ 50 mm. having.
- the contact surface of the tip area of the frog point on the wing rail section is a section of an area running back to its running edge, such as a chamfer, in the flank of the wing rail section.
- the practical frog point which is lowered and approached from the side, begins in the recessed area. A rolling of a wheel on the top does not happen yet.
- the practical frog point is the beginning of the frog point, from which point on the frog point is or can be used as a lateral guide. From the beginning of the practical frog point, the frog point has a technical function. Lateral forces can be absorbed. In front of the practical frog point, this function is not performed by the remaining area of the frog point, which extends to the free end of the frog point.
- the contact surface between the wing rail section and the movable frog point can be designed specifically by milling on the block in such a way that the shortest possible running edge interruption is produced without having to consider a dependency on the rail profile.
- the area moment of inertia does not change by more than ⁇ 20%, preferably by no more than ⁇ 10%. This applies both to a force application from the flank (area moment of inertia ly) and to a force acting in the direction of the top surface (area moment of inertia Ix).
- the same or essentially the same moment of inertia that results from the teaching according to the invention is basically present in the area that extends between the practical frog point and the region in which the frog point extends from solves the section, so is spaced from the section.
- the length LT of the region with the same or essentially the same moment of inertia is preferably 250 mm ⁇ LT ⁇ 9,000 mm.
- the wing rail section is machined out of the block, in particular by milling, in such a way that areas in which deviations from the basic geometry are formed, such as in the case of a superelevation or a recessed area in which the tip of the frog point is embedded in the case of a non-positive connection with the wing rail section , Additional masses remain or are removed in areas adjacent to this, which correspond to those that result from the geometry changes.
- the recessed area in relation to the running edge which is formed on the basis of the teaching according to the invention, results in a further advantage of the teaching according to the invention, which should be emphasized, in relation to the tip of the crossing point in its initial area.
- the crossing point at the beginning of the practical crossing point in which the crossing point is approached from the side and which is lowered, so that a wheel does not roll off on the upper side in this area, a Having a width of 8 mm to 12 mm, whereas in the prior art, widths of usually less than 5 mm are made possible.
- the top surface is the surface that develops in the running surface of the frog point, which is limited by the flanks.
- the width of the head face is defined by the
- the running edge is that line in the longitudinal direction of the crossing point which runs parallel to and below the common running surface tangent at a distance.
- the common runway tangent is a straight line tangent to the runways of both rails of the track.
- the distance is usually 14 mm, but it can also assume values of 10 mm to 16 mm (depending on the railway operator or set of rules).
- the head surface has a plateau-like course, i.e. it runs horizontally or is slightly curved in relation to the horizontal.
- an elevation can be worked out by machining the block.
- first spacer elements - also called lining pieces - from the block.
- the first lining pieces be worked out of the blocks integrally with the wing rail sections, each of which has a recess, with the recesses merging into one another in assembled wing rail sections to form an open chamber in which the front free end, i.e. the foremost area of the crossing point, is arranged adjustably.
- This area is not used and is hereinafter referred to as the nose.
- the frog point has an in particular cuboid base body with a point body that extends from this and has a triangular cross-section, and that the width B of the base body in the overflow area is B>60 mm, in particular B>70 mm, preferably 75 mm ⁇ B ⁇ 85mm
- the base body transitions into the tip body, with the tip body being able to have a width BS in the transition area to the base body with 40 mm ⁇ BS ⁇ 60 mm, preferably 45 ⁇ BS ⁇ 55 mm.
- the frog point In the area of the practical point, the frog point consists of the base body and the point body, which is laterally delimited by the flanks that can be approached and limit the plateau-like upper side (head surface) of the front end of the practical frog point.
- the block as the starting material can be used to work out the desired structural designs and thus the geometries of the section, there is the possibility that the distance between the running edge and the surface of the web running on the running edge side is larger compared to a standard rail profile, so that more space is available and thus the W erk published trademark extends with its base body to a greater extent in the area below the rail head when the frog point is attached, i.e. the base body can be made wider than is the case when using standard rail profiles. Regardless of this, the required strength is given because the web area of the wing rail section can be made thick enough.
- the invention therefore provides in particular that the web of the wing rail section in the overflow area has a thickness D with D>30 mm, in particular D>40 mm, particularly preferably 40 mm ⁇ D ⁇ 60 mm, very particularly preferably 45 mm ⁇ D ⁇ 50 mm. having.
- an optimal geometry including the elevation of the wheel tread, can be precisely milled into the block with tight tolerances without having to use the additional complex bending and grinding processes required by the prior art.
- the Manufacturing process not dependent on the large tolerances of the rolled profile used in standard rails.
- Cants themselves are known to prevent the wheel from lowering at the transition from frog block to wing rail and vice versa, if the upper edge of the wing rail and frog tip area were at the same level in the transition area, due to the conical profile of the vehicle wheels and the geometric course the wing rail to the outside of the track.
- the superelevation is produced by underlaying or lining under the wing rail and bending it. According to the invention, this is not necessary since the elevation is machined out of the block, so that the underside of the wing rail section runs in a two-dimensional plane over its entire length.
- the sections can be braced against one another via lining pieces machined integrally from the block, which can be connected to one another via high-strength screw connections.
- the invention for the production of wing rails for a frog with a movable frog point is also characterized in that the wing rail sections are supported against one another outside the frog point via second lining pieces machined integrally with the wing rails from the block.
- at least one section of each wing rail is manufactured from a forged block of steel by machining, with an integral elevation of the upper edge of the rail being able to be machined in an area in which the frog tip rests against the wing rail section.
- the invention provides that an anti-lift device is formed integrally in first lining pieces, via which the wing rails are supported against one another. It is also provided that a recess is machined in the block to form a contact surface for the point of the frog.
- the wing rail section be machined out of the block in such a way that areas in which the geometry of the wing rail section deviates from its basic geometry, such as elevation or an area set back in relation to the running edge, corresponding to the material mass resulting from the change in geometry , Mass of material in an adjacent area in the wing rail section is removed from the block or remains in addition to the basic geometry such that the moment of inertia of the wing rail section remains unchanged or substantially unchanged.
- wing rail sections from a forged block, as can be gathered from EP 3 312 341 B1.
- corresponding wing rail sections are intended for frogs with a rigid frog point.
- the frog construction with the section present in the respective wing rail which consists of a forged block and is arranged within the overflow area between the wing rail and frog point, with each block being manufactured separately, i.e.
- Typical dynamic axle loads are between 30 t and 40 t.
- the value of the dynamic axle load results from the static axle load multiplied by a factor that depends on the speed. Eg at a speed of At 250 km/h the factor is 1.675 and at a speed of 350 km/h the factor is 1.79
- Fig. 1 shows a section of a site plan of a switch with a spring-loaded crossing point
- Fig. 3 shows a section along the line A-A in Fig. 1,
- Fig. 4 is a section along line B-B in Fig. 1
- Fig. 5 is a section along line C-C in Fig. 1
- Fig. 6 shows a section along the line S-S in Fig. 1,
- Fig. 7 shows a detail X of Fig. 1,
- FIG. 8 shows a section along the line Y-Y in FIG. 7
- FIG. 9 shows a representation corresponding to FIG. 8 with additional material present on the back of the jaw
- Fig. 11 is a schematic representation of a frog area chs in plan view and Fig. 12 Schematic representations of blocks from which wing rail sections are machined.
- the frog 10 is one with a resiliently movable frog tip 12 which is mounted on sliding chairs 14 between wing rails 16, 18 is adjustable.
- the wing rails 16, 18 have a section 20, 22 of a length L in the overflow area between the crossing point 12 and the wing rails 16, 18, which is produced by machining a forged steel block.
- the length of the section 20, 22 can, for. B. between 1500 mm and 12000 mm, without this resulting in a restriction of the teaching of the invention.
- the length of the respective section 20, 22 machined from a separate block is marked with L.
- control rails In front of and behind the section 20, 22, this is connected to control rails, in particular by flash butt welding.
- the forged block is made of steel with a tensile strength Rm with 1175 MPa ⁇ Rm ⁇ 1500 MPa, an elongation at break A with 9% ⁇ A ⁇ 12% and a hardness HBW with 350 HB ⁇ HBW ⁇ 500 HB.
- Chrombainitic steel is mentioned as an example.
- the frog point 12 can be made of the same material, which can be applied to one of the sections 20, 22 via switch drives, so that the desired track can be driven on in the switch.
- sections 20, 22 are machined from a forged billet, also known as a slab. Milling should be mentioned here in particular. Blocks 126, 128 are shown purely in principle in FIG. The wing rail sections 20, 22 are worked out of these.
- lining pieces 32 , 34 are machined integrally from the block together with the wing rail section 20 , 22 and are connected to one another via a high-strength screw connection 36 .
- the lining pieces 32, 34 have recesses 38, 40, which are rectangular in section, merging into one another and into which a positive-locking element 37 is inserted, through which the screw 36 passes.
- the form-fitting element 37 is used for position positioning, screw relief and to absorb rail longitudinal forces.
- the sections 20, 22 each have a foot section 42, 44 which are fixed on a ribbed plate 46 or other suitable base via clamps 48, 50.
- An elastic intermediate layer 52 can be arranged between the foot 42, 44 and the ribbed plate 46.
- the section A-A is spaced from the frog point 12, in front of it.
- a section C-C in the area of the frog point 12 can be seen in FIG.
- the base body 54 is slidably supported (slide chair 14) as is well known.
- the head 62, 64 merges into the foot 42, 44 via a web 66, 68, as is the case with conventional constructions.
- the profile 70, 72 of a control rail such as e.g. B. 60E1 profile (formerly UEC 60), drawn, from the usually by buckling and bending the wing rails are made in a frog area.
- the distance between the mutually facing inner surfaces 74, 76 of the webs 66, 68 of the sections 20, 22 is greater than that of the standard rails, so that as a result more space is available for the frog point 12 with the result that the width B of the base body 54 can be greater than in frogs in which the wing rails are made entirely of standard rails.
- the width B of the base 54 may be 50% greater than the width of the base of frog points extending between wing rails made from rule rails.
- the width B of the base body 54 in the front tip area i.e. in the area in which the first contact of the frog tip 12 with the flank 58 or 60 occurs, can be greater than 60 mm, preferably greater than 70 mm, a particularly preferred range between 75 mm and 85 mm.
- the wing rail sections 20, 22 are machined from a block of steel, the cross-sectional areas are larger than that of rule rails, as FIG. 5 illustrates. In this way, higher moments of inertia can be achieved, with the result that lower bending stresses occur. A better adaptation to dynamic loads can take place.
- Corresponding blocks can each have cross-sectional areas of 16000 mm 2 to 40000 mm 2 , a cuboid shape with a height H between 160 mm and 200 mm and a width B between 100 mm and 200 mm being mentioned in particular.
- the length depends on that of the section 20, 22 to be formed, ie in particular between 1.2 m and 15 m.
- the material used for the section is steel with a tensile strength Rm of 1175 MPa ⁇ Rm ⁇ 1500 MPa, an elongation at break A of 9% ⁇ A ⁇ 12% and a Brinell hardness
- HBW with 350 HB ⁇ HBW ⁇ 480 HB are used.
- Chrombainitic steel is mentioned as an example.
- Examples are moments of inertia ly between 200 cm 4 and 1130 cm 4 and Ix between 1700 cm 4 and 5300 cm 4 with a cross-sectional area in the range of 6500 mm 2 and 15000 mm 2 .
- the force acts from the side, i.e. from the flank, on section 20, 22, and when calculating the area moment of inertia Ix, the force acts in the direction of the top surface 57 on section 20, 22.
- the calculation is carried out using Software.
- an optimal geometry can be achieved precisely with narrow tolerances, in particular by milling, in the wheel overrun area, such as in particular an elevation of the wheel tread or mounts for the frog tip by milling, in particular a small Deviation of the basic course between the running edge of the wing rail section 20, 22 and the running edge of the crossing point 12 following the course of the course, as is explained with reference to FIG.
- FIG. 7 shows a detail X′ of FIG. 1 which relates to the area of the frog point 12 in its point 112 on which the frog point 12 rests on the flank 60 of the section 22 .
- the frog point 12 In this area, in which the frog point 12 is on its upper side, i.e. in the area where the vertex runs, the frog point 12 is plateau-like and has a width H, which at the beginning of the point, i.e. the practical frog point in the range between 8 mm and 12 mm.
- the width is made possible because a milling 80 runs in the flank 60, so that the running edge 82 in its front area 84 runs offset inwards to the running edge 85 of the section 22, which defines the basic course.
- the point 112 of the frog point 12 is located in this recessed area, which has been worked out by the milling 80, and is thus protected.
- the running edge 82 runs as an extension of the running edge 85 of the section 22 than in the basic course.
- the length E can be between 80 mm and 150 mm, in particular in the range of 100 mm.
- the running edge has a kink where it merges into the basic course.
- the plateau-like area at the beginning of the peak is identified by reference number 57 in FIG.
- the width between flanks 58 and 61 i.e. the width of the plateau-like area on top of the tip body 56, is between 8 mm and 12 mm.
- the angle a of the flank 58 or 61 to the vertical (line 63) is between 10° and 20°.
- the width H of the frog point 12 is the width of the head area and is defined by the extension of the right and left flanks 58, 61 up to the level of the running edge 157.
- the running edge is that line in the longitudinal direction of the frog point 12 which z. B. runs according to the standard of Deutsche Bahn AG 14 mm below the apex of the head surface.
- the width of the tip body 56 increases from the start of the tip, as a comparison of the contours 65, 67, 69 shows.
- the contour 69 corresponds to the cross section of the frog point 12 in the area in which the running edge of the frog point 12 or 56 corresponds to the basic course of the running edge, i.e. that of section 22. The same applies to section 20.
- Bottom surface of section 22 has.
- the upper edge of the frog point 12 is illustrated by the line 90 .
- the course of the upper edge of the rails outside of the superelevation is symbolized by the line 92.
- the section S-S (Fig. 6) is made in the area where the sections 20, 22 have openings 94, 96 through which are traversed locking rods 100, 102 connected to a switch mechanism around the frog point 12 to be frictionally applied to the section 22 or the section 24.
- FIG. 10 also shows that frog point 12 consists of base body 54 and point body 56 .
- the separation is symbolized by a broken line 71 .
- the base body 54 has in the embodiment in Transition area to the tip body 56 bevels 73, 75 on. To this
- Bevels 73, 75 are followed by a concavely shaped region 77, 79 of the tip body 56.
- the width BS of the tip body 56 in the line of intersection (71) to the base body 54 is 40 mm ⁇ BS ⁇ 60 mm, preferably 45 mm ⁇ BS ⁇ 55 mm, in order to name examples of values to be emphasized.
- Section B-B in FIG. 4 is a longitudinal section in the region of nose 104 of frog point 12, which passes forward of point 112 and extends into a chamber 106 machined from a liner 108, which in turn is machined integrally with section 20 the block has been made.
- a corresponding piece of lining extends from the section 22 which also has a recess corresponding to the recesses 106 which merges flush into the recess 106 .
- the lug 104 can be moved when the frog point 12 is adjusted, which ensures that the frog point 12 cannot be lifted impermissibly, since the movement of the lug 106 is limited in its vertical movement by the section 110 delimiting the recess 106 on the head side is.
- the dimensions of the nose 104 and the recess 106 are matched to one another in such a way that the frog tip 12 can be adjusted essentially without friction.
- the sections 20, 22 are connected via the lining pieces 108 via high-strength screws.
- 4 shows a screw element 136, which is surrounded by a sleeve 114 and passes through a corresponding bore in the lining pieces 108, as has been explained in connection with FIG.
- FIG. 11 again shows characteristic values of the sections 20, 22 according to the invention. So the length LA of the section 20, 22 in the range between
- the section 20, 22 extends in front of the practical frog point 112 in the direction of the free end of the frog point 112 (weld seams 113, 115) over a length LV that can be between 600 mm and 1,800 mm. Behind the practical frog point 112, i.e. towards the root of the tongue, the section 20, 22 extends to welds 117, 119 over a length LT + LS of approximately 850 mm to 10,200 mm.
- the wheel overrun area in which the wheel load is carried essentially equally by both the frog point 12 and the section 22 or 20, has a distance LU from the practical frog point 112, preferably with 200 mm ⁇ LU ⁇ 3,000 mm.
- the wheel overrun area 123 is not punctiform, but an area due to the sinking of the section 22 or the frog tip 12 .
- the top surface of the frog point 12 has a width of about 30 mm to 55 mm
- the length LT of the section 20, 22 in which there is the same or essentially the same area moment of inertia.
- the length LT is in the range between 250 mm and 9,000 mm and extends between the practical frog point 112 and the area in which the frog point 12 detaches from the section 20 or 22, ie is at a distance from it.
- this area is identified by reference number 121 and is shown as a line.
- the section 20, 22 extends beyond this point (distance LS), preferably over two further threshold fields.
- the distance LS is preferably between 600 mm and 1,200 mm.
- the distance LN between the practical frog point 112 and the front free end of the frog point 12 is shown in FIG. 11 .
- the distance LN is preferably 100 mm to 500 mm.
- the front free end of frog point 12 is the free end of nose 104 described in connection with Fig. 4.
- the invention is characterized by a frog 10, comprising at least rail head 62, 64 and web 66, 68 having wing rails 16, 18 and a movably arranged frog point 12 between the wing rails, with a wheel overrun area between the frog point and the wing in the area of the frog point rail runs, the wing rails being releasably connected to one another and each wing rail separate from the crossing point at least over the length of the wheel run-out area or consists of a wing rail portion extending from a forged billet.
- the frog is also characterized by the fact that the area moments of inertia I x , I y in cross sections running perpendicular to the longitudinal axis of the wing rail sections are the same or essentially the same, at least in the area of the contact surface of the frog point on the wing rail section, by a maximum of ⁇ 20%, in particular a maximum of ⁇ 10%, deviate from each other. Furthermore, the invention is characterized in that corresponding to the mass of material in a region of the wing rail section 20, 22, which results in the region from a change in geometry from the basic geometry of the wing rail section, a mass of material corresponding to the change in geometry is removed or remains to achieve this the same or substantially the same area moment of inertia.
- the invention is also characterized in that the contact surface of the tip area of the frog point 12 on the wing rail section 20, 22 is a section of an area 80 running back to its running edge, such as milling, in the flank 60 of the wing rail section, with preferably corresponding to the mass of the Formation of the recessed area 80 removed material on the side of the wing rail section 20, 22 facing away from the frog point in particular more material remains on the wing rail section.
- the frog according to the invention is characterized in that the running edge course of the frog point 12, starting at a distance E from the practical frog point 112, transitions into the basic course predetermined by the running edge of the section 20, 22 with 80 mm ⁇ E ⁇ 150 mm.
- a frog with anti-lift protection extending from the wing rail 16, 18, in which the frontmost area 104 of the frog point 12 is adjustably arranged, is characterized in that the anti-lift protection is machined integrally from the block.
- the frog is also characterized in that the anti-lift device is integrally formed in first lining pieces 108, via which the wing rail sections 20, 22 are supported and connected to one another.
- the invention is also characterized in that the first lining pieces 108 are machined out of the blocks integrally with the wing rail sections 20, 22, each of which has a recess 106, with the wing rail sections being assembled the recesses merge into one another to form an open chamber in which the foremost area 104 of the crossing point 12 is arranged to be adjustable.
- the frog according to the invention is also characterized in that the frog point 12 has a cuboid base body (54), in particular, with a point body 56 that is triangular in section and extends therefrom, and that the width B of the base body is B>60 mm, in particular B>70 mm, preferably 75mm ⁇ W ⁇ 85mm.
- the frog with at least one through-opening in the web 66, 68 of the wing rail 16, 18 for a rod element 100, 102, such as a locking rod or tester rod, is characterized in that the web 66, 68 of the wing rail section 20, 22 at least in the area of the Through opening 96, 98 has a thickness D with D>30 mm, in particular D>40 mm, particularly preferably 40 mm ⁇ D ⁇ 60 mm, very particularly preferably 45 mm ⁇ D ⁇ 50 mm.
- the frog is distinguished by the fact that in the transition area between the frog tip 12 and the wing rail section 20, 22, an elevation is worked out by machining the block.
- the frog is also distinguished by the fact that the wing rail sections 20, 22 are supported against one another outside the frog point 12 via second lining pieces 32, 34 which are machined integrally with the wing rails from the block.
- the invention is further characterized in that the wing rail section 20, 22 is machined out of the block in such a way that areas in which the geometry of the wing rail section deviates from its basic geometry, such as superelevation or in Area 80 that is set back in relation to the running edge 85, corresponding to the mass of material that results from the change in geometry, material mass in an adjacent area in the wing rail section is removed or remains in addition to the basic geometry.
- the invention is also characterized by a method for producing wing rails 16, 18 for a frog 10 with a movable frog point 12, which is characterized in that at least one section 20, 22 of each wing rail 16, 18 is made from a forged steel block by machining is, wherein an elevation of the wheel running surface is worked out integrally in an area in which the frog tip 12 rests on the wing rail section 20, 22.
- the method according to the invention is characterized in that an anti-lift device for the frog tip 12 is machined integrally with the wing rail section 20, 22 from the block.
- the method according to the invention is also characterized in that in the flank 58, 60 of the wing rail section 20, 22 running on the frog tip side, a region 80 with a contact surface for the frog tip 12, 112, which is set back in relation to the basic course of the running edge 85, is machined out of the block.
- the method according to the invention is characterized in that the wing rail section 20, 22 is machined out of the block in such a way that areas in which the geometry of the wing rail section deviates from its basic geometry, such as elevation or area 80 set back in relation to the running edge 85, correspondingly the material mass resulting from the geometry change, material mass in an adjacent area in the wing rail section is removed or remains in addition to the basic geometry, so that the moment of inertia of the wing rail section remains unchanged or essentially unchanged.
- the method according to the invention is also characterized in that the wing rail section 20, 22 is machined out of the block in such a way that the area moments of inertia in cross sections running perpendicular to the longitudinal axis of the wing rail section are at least in the area of the contact surface of the frog tip 12 on the wing rail section are the same or essentially the same, deviate from each other by a maximum of ⁇ 20%, in particular by a maximum of ⁇ 10%.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Heat Treatment Of Articles (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Escalators And Moving Walkways (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
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Applications Claiming Priority (2)
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DE102021106050.8A DE102021106050A1 (de) | 2021-03-12 | 2021-03-12 | Herzstück |
PCT/EP2022/053769 WO2022189107A1 (de) | 2021-03-12 | 2022-02-16 | Herzstück und verfahren zur herstellung von flügelschienen für ein herzstück |
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EP4278041A1 true EP4278041A1 (de) | 2023-11-22 |
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EP22706044.9A Pending EP4278041A1 (de) | 2021-03-12 | 2022-02-16 | Herzstück und verfahren zur herstellung von flügelschienen für ein herzstück |
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US (1) | US20240110339A1 (de) |
EP (1) | EP4278041A1 (de) |
CN (1) | CN116981807A (de) |
CA (1) | CA3206574A1 (de) |
DE (1) | DE102021106050A1 (de) |
TW (1) | TWI836365B (de) |
WO (1) | WO2022189107A1 (de) |
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CA2263689C (en) | 1996-08-21 | 2003-12-16 | Oswald Lochschmidt | Crossing assembly for point switches and processing |
DE10310043A1 (de) | 2003-03-06 | 2004-09-16 | Schreck-Mieves Gmbh | Herzstück |
DE10310040A1 (de) | 2003-03-06 | 2004-09-16 | Schreck-Mieves Gmbh | Herzstück |
FR2887898B1 (fr) * | 2005-07-04 | 2009-06-05 | Vossloh Cogifer Sa | Coeur de croisement a pointe mobile pour voie ferree |
DE102006030813B4 (de) | 2006-06-30 | 2011-01-20 | Db Netz Ag | Schutzrampe einer Flügelschiene einer Weiche |
ES1072245Y (es) * | 2010-04-09 | 2010-09-09 | Amurrio Ferrocarril Y Equipos | Dispositivo de encerrojamiento para corazon de punta movil |
WO2013117325A1 (de) * | 2012-02-06 | 2013-08-15 | Voestalpine Bwg Gmbh & Co. Kg | Gleisabschnitt für eine schiene sowie verfahren zur erhöhung der elastischen lagerung |
DE102016120200A1 (de) | 2016-10-24 | 2018-04-26 | Voestalpine Bwg Gmbh | Flügelschiene eines Herzstücks sowie Verfahren zum Herstellen eines Herzstücks |
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- 2022-02-16 WO PCT/EP2022/053769 patent/WO2022189107A1/de active Application Filing
- 2022-02-16 CN CN202280020886.9A patent/CN116981807A/zh active Pending
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US20240110339A1 (en) | 2024-04-04 |
TW202237942A (zh) | 2022-10-01 |
DE102021106050A1 (de) | 2022-09-15 |
TWI836365B (zh) | 2024-03-21 |
CN116981807A (zh) | 2023-10-31 |
WO2022189107A1 (de) | 2022-09-15 |
CA3206574A1 (en) | 2022-09-15 |
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