EP0651833A1 - Rail section. - Google Patents

Rail section.

Info

Publication number
EP0651833A1
EP0651833A1 EP93915929A EP93915929A EP0651833A1 EP 0651833 A1 EP0651833 A1 EP 0651833A1 EP 93915929 A EP93915929 A EP 93915929A EP 93915929 A EP93915929 A EP 93915929A EP 0651833 A1 EP0651833 A1 EP 0651833A1
Authority
EP
European Patent Office
Prior art keywords
track
frog
sections
wing
sleeve
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
Application number
EP93915929A
Other languages
German (de)
French (fr)
Other versions
EP0651833B1 (en
Inventor
Sebastian Benenowski
Hubertus Hoehne
Alfred Kais
Erich Nuding
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine BWG GmbH
Butzbacher Weichenbau GmbH
Original Assignee
Voestalpine BWG GmbH
Butzbacher Weichenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE4224156 priority Critical
Priority to DE19924224156 priority patent/DE4224156A1/en
Application filed by Voestalpine BWG GmbH , Butzbacher Weichenbau GmbH filed Critical Voestalpine BWG GmbH
Priority to PCT/EP1993/001870 priority patent/WO1994002683A1/en
Publication of EP0651833A1 publication Critical patent/EP0651833A1/en
Application granted granted Critical
Publication of EP0651833B1 publication Critical patent/EP0651833B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B7/00Switches; Crossings
    • E01B7/10Frogs
    • E01B7/12Fixed frogs made of one part or composite

Abstract

In order to prevent relative movement between unwelded parts (12, 14) of a cross-over frog (16), the invention proposes that a sleeve (28) passes without play through the frog parts, a bolt (26) extending down the axis of the sleeve to connect the frog with its associated guardrails (18, 20).

Description

description

Track section

The invention relates to a track section in the form of a centerpiece composed of two rail sections and wing rails spaced apart by lining pieces, at least the centerpiece being penetrated by a sleeve surrounding a connecting element such as bolts.

The heart of switches or crossings is the result of overlapping rail tracks. There are simple, double, double and triple frogs, although the single frog is most often found on simple turnouts.

The driving edges of the crossing rail tracks are interrupted in the centerpiece. The rail strands that continue from the tongues are bent in the frog area and are referred to as wing rails. The two strands, which continue from the turnout ends, are brought together to the centerpiece tip. The tip can either be composed of standard rails (rail frog), composed of construction rails and partially welded (partial block frog) or made from one piece (block frog). The latter are e.g. B. only rarely used in the Deutsche Bundesbahn.

In the case of frogs which are produced from rails, they are often welded together. However, disadvantages can arise here if materials that are difficult to weld are to be connected. Another disadvantage is that in the Butt surface foreign material is present. Edge decarburization is also disadvantageous. The risk of cracks also increases.

If the track parts are not welded together, they are held together by connecting elements such as bolts. However, it is disadvantageous that there is a relative movement between the rail parts.

Different constructions of frogs can be found in DD 60 326, DE 548 749, DE 23 18 419, D E 81 05 454 U l or DD 60 326.

The present invention has for its object to develop a core of the type described in such a way that rail parts interconnected without welding can not move relative to each other at least perpendicular to the longitudinal axis of the track section.

The object is essentially achieved on the one hand in that the heart consists of unwelded rail sections which are penetrated by the sleeve without play. In this case, the frog sections are preferably completely penetrated by the sleeve, at least in regions, the lining pieces arranged on its two sides and spacing the associated wing rails.

The task is solved in a track section with a connection element, such as a bolt, which may be surrounded by a sleeve, consisting of two rail sections and the associated wing piece, which is spaced apart from one another by lining pieces, in that unwelded heart piece sections forming the heart piece, on the one hand, and those arranged on both sides, and the associated wing rails spacing pieces of chuck on the other hand interlock positively with each other over profiling extending in the longitudinal direction of the heart. In particular, it is provided that the profiling consists of one on top of the other Teeth formed from the surfaces of the centerpiece and lining pieces of teeth.

The teachings according to the invention ensure in a simple manner that a relative movement perpendicular to the longitudinal axis cannot occur between the rail parts to be connected without welding being necessary in this connection area, in particular in the frog area penetrated by the connection element. As a result, there are no problems with edge decarburization or cracking, or problems due to the presence of foreign materials in the abutting surfaces. The formation of corresponding core areas is also more cost-effective.

In this case, unshielded means that in the connection area between wing rails and frog, that is to say in the area where these elements are connected via the lining pieces by means of a connection element, the frog sections are not welded to one another. However, this does not exclude that the tip is welded on the tongue side or the control rails are welded on the switch end.

When using the sleeve, which is arranged without play and by means of which a relative movement in any direction is excluded, it can be pressed or shrunk in the track parts or lining pieces.

So there is the possibility that the frog sections and chucks are heated to then insert the sleeve. After cooling, the sleeve is pressed in, so that the desired freedom from play is ensured.

Alternatively, there is e.g. B. also the possibility of subcooling the sleeve so that it can then be introduced into the associated recesses of frog sections and chucks. There is also the possibility that the sleeve is introduced undercooled in the frog sections and that, after their play-free connection, heated chuck pieces are then shrunk onto the sleeve.

A proprietary further development of a track section in the form of a frog area, the wing rails each having a wing rail head with the frog facing guide surfaces for a wheel passing through the frog area, is characterized in that the respective guiding surface of the wing rails has a curvature that points to the curvature of a wheel passing through the heart is tuned. With regard to the respective contact surface between the wheel and the guide surface, there can be a constant curvature difference or a constantly changing curvature difference, viewed in a plane perpendicular to the longitudinal direction of the track parts.

The bar or known in their form Lining pieces are preferably composed of a cuboid-shaped inner section extending from the centerpiece and preferably completely free of play through the sleeve, a first wedge-shaped section widening in the direction of the wing rails, a trapezoidal section in section, and a second wedge-shaped section below and supporting the wing rail head and likewise in the section trapezoidal section together. The first wedge-shaped section on the wing rail head side can have an outer surface that continuously merges into the guide surface. In particular, the relevant outer surface of the first wedge-shaped section can have a curvature that shows the behavior of the guide surface.

Further details, advantages and features of the invention result not only from the claims, the features to be extracted from them - individually and / or in combination - but also from the following description of a preferred exemplary embodiment which can be seen from the drawing.

Show it: 1 shows a section through a first embodiment of a frog area,

2 shows a section through a second exemplary embodiment of a frog area and

3 shows a further section through the centerpiece according to the second exemplary embodiment according to FIG. 2.

1 shows a section through a frog area, which consists of a frog (16) consisting of two rail sections (12) and (14) and wing rails (18) and (20) running along this. The rail sections (12) and (14) can be made from solid rails.

For spacing from the wing rails (18) and (20) to the centerpiece (16), that is to say to the facing rail sections (12) and (14), lining pieces (22) and (24) of generally known geometry are provided.

The connection between the wing rail (18) and (20) and the lining pieces (22) and (24) and between the lining pieces (22) and (24) and the track sections (12) and (14) and their connection to one another itself takes place without welding, but without a relative movement between them being possible. This is achieved in that a connecting element such as bolts (26) passes through the unit described above in order to achieve a non-positive or partially positive connection, the lining pieces (22) and (24) partially, the rail sections (12) and (14) of the Heart (16) are completely penetrated by a sleeve (28) without play, within which the bolt (26) extends. The bolt is tightened via intermediate pieces (30) and (32) on the outer web surfaces of the wing rails (18) and (20) in order to achieve the desired force-locking connection between the wing rails (18), the lining pieces (22) and (24) and the centerpiece (16). Due to the fact that the sleeve (28) passes through the track sections (12) and (14) and at least in some areas the lining pieces (22) and (24) without play, a relative movement between these and thus to the wing rails (18) and (20) is excluded . The latter is brought about by the lining pieces (22) and (24), each of which has an outer wedge-shaped section (34) or (36) which is trapezoidal in section, and which thus conforms to the geometry of the lug chamber of the associated wing rails (18), which is not described in more detail. or (20) is adapted so that a relative movement is excluded.

The lining pieces (22) and (24) each consist of an inner cuboid-shaped inner sections (38) and (40), which are supported on the outer web surfaces of the rail sections (12) and (14), and a subsequent one in the direction of the wing rail heads (42) or (44) extending first wedge-shaped section (46) or (48) and that adapted to the tabs of the wing rails (18) and (20) and in a common plane (35) or (37 ) together the wing rail heads (42) and (44) supporting the second wedge-shaped section (34) and (36).

The sleeve (28) runs without play within the cuboid sections (38) and (40).

As a special feature, it should also be emphasized that the wing rail heads (42) and (44) have guide surfaces (50) and (52) each with a curvature which is adapted to the wheels (54) passing through the heart. There may be a constant curvature difference in the contact surface between the guide surface (50) and (52) and the wheel (54), or a continuously changing curvature difference on successive sections, viewed in each case in a plane perpendicular to the longitudinal axis of the frog. The facing outer surfaces (56) and (58) of the inner wedge-shaped sections (46) and (48), which are trapezoidal in section, extend in coordination with the guide surfaces (50) and (52). The fact that the wing rail heads (42) and (44) are supported on the underside of the second wedge-shaped sections (34) and (36) largely over their entire width in the common plane (35) and (37), results in comparison to the previously known State of the art a larger contact surface, which in turn increases the stability of the frog area.

The materials used for the rail sections (12) and (14), the lining pieces (22) and (24) and the sleeve (28) should have the same or almost the same expansion coefficient.

2 and 3 show a further embodiment of a frog area, in which the frog (60), which is assigned to the wing rails (62) and (64), consists of two rail sections (66) and (68) which are not welded to one another , which are preferably made of solid rails.

Between the wing rails (62) and (64) and the heart (60) lining pieces (70) and (72) are arranged according to FIG. 1. The unit thus formed from wing rails (62) and (64), lining pieces (70) and (72) and heart (60) is interspersed with play by a bolt (74), which is on the outside via intermediate pieces (76) and (78) the outer web surfaces of the wing rails (62) and (64) can be tightened. to bring about the desired adhesion.

In order to rule out that the parts forming the frog, in particular the rail sections (66) and (68) of the frog (60) can move relative to one another in the direction of the central axis (80), the superimposed surfaces of the rail sections (66) and (68 ) or the surfaces of the lining pieces (70) and (72) which are in contact with them. This profiling is formed by teeth extending from the superimposed surfaces and extending in the longitudinal direction of the frog, of which, for example, only one tooth in each surface with the reference numerals (82), (84), (86), (88), ( 90) and (92) is provided. The respective teeth are designed such that tooth flanks of interlocking teeth are aligned with each other without play, whereas the associated tooth head (81) and tooth base (83) are spaced from one another by teeth emanating from opposite surfaces (see also enlarged detail in FIG. 3).

Furthermore, the flanks, two of which, for example, are provided with the reference numerals (94) and (96), describe an angle α with the central axis (80), which is preferably between 65 "and 75 ', in particular at 70 * .

In this way, the desired closing can be achieved when the bolt (74) is tightened, so that a relative movement in the direction of the central axis (80) is excluded. Corresponding geometries naturally also apply to the teeth (82), (84) or (90) running between the chuck pieces (70) or (72) and the heart piece (60). (92).

With regard to the rail heads of the wing rails (62) and (64) or the formation of the guide surfaces and the geometry of the lining pieces (70) and (72) aligned with this, reference is made to the exemplary embodiment of FIG. 1, so that there is no further explanation requirement.

However, it should also be mentioned that ß the common planes of chuck (70) or (72) and wing rail head underside, which is provided with the reference symbol (98) or (100), describe an angle ß to the central axis (80) which also preferred _s-- ' w * * ei l s j e υ is between 65 ° and 75', especially at 70 '.

It should also be noted that the sleeve in FIGS. 2 and 3 is not a mandatory element.

Claims

Track section
1. Track section in the form of a fuselage (16) composed of two rail sections (12, 14) and wing rails (18, 20) spaced apart by lining pieces (22, 24), at least the frog of a connecting element such as bolts ( 26) surrounding sleeve (28) is penetrated, so that the heart (16) consists of un-welded rail sections (12, 14) which are penetrated by the sleeve (28) without play.
2. Track section according to claim 1, so that the core sections (12, 14) are completely and the lining pieces (22, 24) which are arranged on both sides and the associated wing rails (18, 20) spacing apart ) are at least partially penetrated by the sleeve (28) without play.
3. Track section according to claim 1 or 2, dadu ch gekenn ichn et that the sleeve (28) in the track sections (12, 14) or the lining pieces (22, 24) is pressed or shrunk.
4. Track section with a connecting element, such as bolts (74), which is penetrated by a connecting element, such as a bolt (74), at least in some areas, and is composed of two rail sections (66, 68) and has wing rails (62, 64) that are spaced apart via lining pieces (70, 72) ), dad u rch ken nze n et that un-welded frog sections (66, 68) forming the frog (60) on one side and the lining pieces (70, 72) arranged on both sides and spacing the associated wing rails (62, 64) on the other interlock with one another with a profile (82, 84, 86, 88, 90, 92) running in the longitudinal direction of the frog.
5. Track section according to claim 4, dad ucheken ze ichn et that the profiling from a teeth (82, outgoing) from outgoing surfaces of the frog sections (66, 68) or frog sections (60) and the lining pieces (70, 72) 84, 86, 88, 90, 92) formed teeth.
6. constant section according to claim 5, so that the teeth (82, 84, 86, 88, 90, 92) rest against one another with their tooth flanks (94, 96) without play.
7. Track section according to claim 5 or 6, dad u rch gek e n ze ichnet that tooth head (81) and tooth base (83) are spaced from each other by interlocking teeth.
8. Track section according to claim 6, dadu rch gek en ze ichn et, that the flank angle of the tooth flanks (94, 96) to the central axis of the frog (60) or the wing rails (62, 64) describes an angle α preferably with 65 '<α <75', in particular α = 70 '.
9. Track section according to at least one of the preceding claims, characterized in that the common plane (35, 37, 98, 100) of wing rail head (42, 44) and lining piece (22, 24, 70, 72) to the central axis (80 ) describes the wing rails an angle ß preferably with 65 '<ß <75', in particular ß = 70 * .
10. Track section in the form of a frog area according to one of the preceding claims, wherein the wing rails each have a wing rail head (42, 44) with the frog (16) facing guide surfaces (50, 52) for a wheel (54) passing through the frog area ¬ show that I know that the guide surfaces (50, 52) of the wing rail heads (42, 44) have a curvature that is matched to the curvature of the wheel (54) passing through the frog area.
11. Track section according to claim 10, so that a constant curvature difference between the guide surface (50, 42) and the wheel (54) between the guide surface (50, 42) and the wheel (54) or a continuous contact areas in one another changing curvature difference exists, viewed in each case in a plane perpendicular to the longitudinal direction of the frog area.
12. Track section according to at least one of the preceding claims, characterized by the fact that it is shown, that the lining piece (22) consists of a cuboid inner section (38, 40) starting from the center piece (16) and preferably completely free of play through the sleeve, and a wedge-shaped section widening in the direction of the wing rail head (42, 44) (46, 48) and a second wedge-shaped section (34, 36) below the wing rail head and supporting this in a common plane (35, 37).
13. Track section according to at least claim 12, which means that the first wedge-shaped section (46, 48) of the lining piece (22, 24) is provided with an outer surface (56, 58) on the wing rail head side, which continuously merges into the guide surface (50, 52) of the wing rail head (42, 44).
14. Track section according to at least one of the preceding claims, so that the outer surface (56, 58) of the first wedge-shaped section (46, 48) of the lining piece (22, 24) has a curvature, which is adapted to the guide surface (50, 52) of the flight head.
EP93915929A 1992-07-22 1993-07-16 Rail section Expired - Lifetime EP0651833B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE4224156 1992-07-22
DE19924224156 DE4224156A1 (en) 1992-07-22 1992-07-22 Track section
PCT/EP1993/001870 WO1994002683A1 (en) 1992-07-22 1993-07-16 Rail section

Publications (2)

Publication Number Publication Date
EP0651833A1 true EP0651833A1 (en) 1995-05-10
EP0651833B1 EP0651833B1 (en) 1997-05-07

Family

ID=6463820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93915929A Expired - Lifetime EP0651833B1 (en) 1992-07-22 1993-07-16 Rail section

Country Status (12)

Country Link
US (1) US5522570A (en)
EP (1) EP0651833B1 (en)
JP (1) JPH08501842A (en)
KR (1) KR950702661A (en)
AT (1) AT152794T (en)
AU (1) AU4569593A (en)
DE (1) DE4224156A1 (en)
DK (1) DK0651833T3 (en)
ES (1) ES2102663T3 (en)
FI (1) FI950218A (en)
PL (1) PL175350B1 (en)
WO (1) WO1994002683A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008008883U1 (en) 2008-10-20 2010-03-18 Voestalpine Bwg Gmbh & Co. Kg heart

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FR2695662B1 (en) 1992-09-11 1994-11-18 Cogifer Embedding of the movable point in the cradle of a crossing core incorporated in the long welded rails and method of producing such embedding.
US5653408A (en) * 1996-04-18 1997-08-05 Abc Rail Products Corporation Direct support frog assembly
CZ294025B6 (en) 1996-08-21 2004-09-15 Hubmann Hans-Peter Crossing assembly for point switches and welding method thereof
US5743496A (en) * 1997-02-19 1998-04-28 Upcor, Inc. Railroad frog crossing bolt and nut assembly for clamping railroad rail sections together
DE19901949C2 (en) * 1999-01-20 2002-10-31 Thyssen Krupp Materials & Serv Movable two-piece or multi-piece centerpiece tip
DE10000782B4 (en) * 2000-01-11 2006-02-23 Bwg Gmbh & Co. Kg Track section
EP1138830B1 (en) * 2000-03-30 2005-05-04 BWG GmbH &amp; Co. KG Grooved rail frog and method of production thereof
DE10015508A1 (en) * 2000-03-30 2001-10-04 Butzbacher Weichenbau Gmbh Grooved rail crossing tongue has tongue crossing point with two constructional profiles of rail steel welded together, and with apertures to accommodate austenitic manganese steel insert
DE10100033A1 (en) 2001-01-03 2002-07-04 Butzbacher Weichenbau Gmbh Railway rail comprises rail head, rail rib with fishplate chambers together with rail foot and at least one lining piece in fishplate chamber
CN102021866B (en) * 2010-12-20 2013-03-27 中铁宝桥集团有限公司 Alloy steel combined frog in wedge-shaped structure
US8424813B1 (en) 2011-01-25 2013-04-23 Cleveland Track Material, Inc. Elevated frog and rail track assembly
CZ306360B6 (en) * 2011-04-14 2016-12-21 DT - Výhybkárna a strojírna, a.s. Point crossing frog and process for producing thereof
US8556217B1 (en) 2011-05-24 2013-10-15 Cleveland Track Material, Inc. Elevated frog and rail crossing track assembly
DE102012100957A1 (en) 2012-02-06 2013-08-08 Voestalpine Bwg Gmbh & Co. Kg Track portion for rail vehicle, has elastic element partially extended in recesses of supporting part and/or foot portion of core and exhibiting thickness and elasticity such that distance is unchanged when core is unstressed
DE102012100947A1 (en) 2012-02-06 2013-08-08 Voestalpine Bwg Gmbh & Co. Kg Track portion for rail, has resilient element having spring characteristic, where resilient element extends itself in recess of foot portion, and resilient element has thickness and rigidity such that gap with core is unchanged
WO2013117325A1 (en) 2012-02-06 2013-08-15 Voestalpine Bwg Gmbh & Co. Kg Track section for a rail and method for increasing the elastic bedding
CN104499382A (en) * 2014-12-23 2015-04-08 中铁宝桥集团有限公司 Combined frog of forged high-manganese-steel point rail
DE102015121273A1 (en) 2015-12-07 2017-06-08 Voestalpine Bwg Gmbh Track section and method for connecting track components
CN105625107A (en) * 2016-03-15 2016-06-01 芜湖中铁科吉富轨道有限公司 Track turnout structure

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Publication number Priority date Publication date Assignee Title
DE202008008883U1 (en) 2008-10-20 2010-03-18 Voestalpine Bwg Gmbh & Co. Kg heart

Also Published As

Publication number Publication date
AU4569593A (en) 1994-02-14
FI950218A0 (en) 1995-01-19
PL307227A1 (en) 1995-05-15
DK651833T3 (en)
AT152794T (en) 1997-05-15
PL175350B1 (en) 1998-12-31
WO1994002683A1 (en) 1994-02-03
FI950218A (en) 1995-01-19
ES2102663T3 (en) 1997-08-01
KR950702661A (en) 1995-07-29
DK0651833T3 (en) 1997-11-03
US5522570A (en) 1996-06-04
JPH08501842A (en) 1996-02-27
FI950218D0 (en)
EP0651833B1 (en) 1997-05-07
DE4224156A1 (en) 1994-01-27

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